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Применить Всего найдено 17886. Отображено 200.
10-08-2016 дата публикации

УНИВЕРСАЛЬНЫЙ СТЕНД ДЛЯ ОПРЕДЕЛЕНИЯ ХАРАКТЕРИСТИК ЭЛЕКТРОПРИВОДОВ И ДВИЖИТЕЛЕЙ ДЕЙСТВУЮЩИХ МОДЕЛЕЙ БПЛА

Номер: RU2594048C2

Изобретение относится к области авиации, в частности к средствам для проведения испытаний приводов и движителей летательных аппаратов. Стенд для определения характеристик электроприводов и движителей беспилотных летательных аппаратов содержит корпус стенда, основание с кронштейнами крепления электропривода и датчика крутящего момента. Корпус стенда содержит узлы крепления нагрузочного устройства или вентилятора-движителя, при этом электропривод соединен с вентилятором посредством валов и муфт. Нагрузочное устройство содержит вентилятор, радиально-кольцевой конфузор и направляющий аппарат. Достигается возможность проведения испытаний электроприводов и движителей на одном стенде. 1 з.п. ф-лы, 2 ил.

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10-07-2010 дата публикации

СПОСОБ ИСПЫТАНИЙ ШАРНИРНЫХ УСТРОЙСТВ МЕХАНИЧЕСКИХ СИСТЕМ

Номер: RU2394218C2

Изобретение относится к измерительной технике и может быть использовано для определения моментов сопротивления в шарнирных устройствах механических систем космических аппаратов. При реализации способа осуществляют поворот шарнирного устройства при помощи технологического электропривода в прямом направлении и измеряют при помощи датчика результирующий крутящий момент повороту шарнирного устройства в прямом направлении M1(φ), а затем осуществляют поворот шарнирного устройства в обратном направлении и измеряют результирующий крутящий момент повороту шарнирного устройства в обратном направлении М2(φ), после чего определяют момент сопротивления шарнирного устройства повороту Мс(φ) по формуле. Технический результат заключается в повышении точности измерений. 2 ил.

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27-04-2010 дата публикации

МОДЕЛЬ ЗУБЧАТОГО КОЛЕСА

Номер: RU2387971C1

Изобретение относится к испытательной технике и может быть использовано при исследованиях процессов массопереноса пластичного смазочного материала при работе зубчатых передач, в частности процессов регенерации пластичного смазочного материала на рабочих поверхностях зубьев. Устройство включает корпус с фрагментом зубчатого венца, выполненным в виде дугообразного элемента, в котором консольно-радиально укреплена пара прямоугольных балок - имитаторов реальных зубьев, балки укреплены шарнирно, с возможностью поворота в плоскости дуги элемента. При этом одна из балок укреплена непосредственно в элементе, а другая - в ползуне, перемещающемся вдоль элемента в направляющих, расположенных в этом элементе, ползун и обе балки снабжены фиксаторами. Модель снабжена приспособлением для имитации процесса регенерации смазочного слоя на рабочей поверхности реального зуба, выполненным в виде консоли, один конец которой шарнирно укреплен на корпусе модели в геометрическом центре элемента, с возможностью ...

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21-08-2024 дата публикации

Стенд для испытания цепных передач приводных роликовых конвейеров для штучных грузов

Номер: RU228270U1

Полезная модель относится к области испытательной техники и может быть использована для испытаний цепных передач приводных роликовых конвейеров для штучных грузов. Техническим результатом предлагаемой полезной модели является снижение энергозатрат при проведении испытаний цепей путем использования механического устройства, позволяющего осуществлять нагрузку на цепь. Для достижения технического результата предложен стенд для испытания цепных передач, содержащий механическое устройство для нагрузки цепи, состоящее из приводного ролика с закрепленной на нем ведомой звездочкой, передающей приводной крутящий момент от цепи на приводной ролик, и тормозной ленты, охватывающей приводной ролик, один конец которой жестко закрепляется на раме стенда, а другой закрепляется на замыкающем рычаге, в отверстиях которого размещаются контрольные грузы, создающие под действием силы тяжести момент сопротивления вращению приводного ролика. 3 ил.

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27-10-2004 дата публикации

СТЕНД ДЛЯ ИСПЫТАНИЙ ЗУБЧАТЫХ РЕМНЕЙ НА ЦИКЛИЧЕСКУЮ ПРОЧНОСТЬ

Номер: RU2239169C1

Изобретение относится к испытательной технике. Стенд для испытания зубчатых ремней на циклическую прочность состоит из возбудителя циклической нагрузки, натяжного шкива, нагружающего устройства и датчика перемещений. Стенд снабжен штоком, совершающим возвратно-поступательное движение в направляющих, кривошипно-шатунным механизмом, приводным шкивом с зажимом для зубчатого ремня. Приводному шкиву через кривошипно-шатунный механизм и шток сообщается движение от возбудителя циклической нагрузки. Нагружающее устройство выполнено с возможностью задания на натяжном шкиве нагрузки на зубчатый ремень, величина которой контролируется датчиком перемещений. Технический результат: повышение достоверности результатов и ускорение процесса испытаний. 2 ил.

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20-02-2004 дата публикации

УСТРОЙСТВО ДЛЯ ВИБРОАКУСТИЧЕСКОЙ ДИАГНОСТИКИ ПЕРЕДАЧ ЗАЦЕПЛЕНИЕМ

Номер: RU2224223C1

Изобретение относится к деталям машин и может быть использовано для виброакустической диагностики передач зацеплением приводов машин, применяемых в машиностроительной, металлообрабатывающей, станкостроительной, авиационной промышленности и других. Устройство для вибродиагностики передач зацеплением включает по меньшей мере один канал выделения измерительной информации, содержащий тракт контроля виброакустического сигнала и тракт контроля частоты вращения, программируемый вычислитель, индикатор и регистрирующее устройство, соответствующие входы которых связаны с выходами программируемого вычислителя. В канал выделения измерительной информации дополнительно введен тракт формирования электрического сигнала, включающий цифроаналоговый преобразователь, связанный с программируемым вычислителем, программно-управляемый резонансный контур, связанный с цифроаналоговым преобразователем и контроллером, и регулируемый усилитель, связанный с цифроаналоговым преобразователем и трактом контроля виброакустического ...

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27-06-2011 дата публикации

УСТРОЙСТВО ДИАГНОСТИРОВАНИЯ ПЕРЕДАТОЧНЫХ МЕХАНИЗМОВ

Номер: RU105994U1

Устройство диагностирования передаточных механизмов, включающее датчик перемещения, установленный на одном из звеньев передаточного механизма, и электронный генератор импульсного опорного сигнала постоянной частоты, присоединенные к имеющему два входа вычислительному блоку, подсчитывающему разность между количеством импульсов, поступивших с датчика перемещения и электронного источника импульсного опорного сигнала, как функцию от величины перемещения звена передаточного механизма, на которое установлен датчик перемещения, причем при помощи спектрального анализа данной функции выделяются диагностические признаки, используемые для заключения о степени работоспособности механизма.

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20-04-2009 дата публикации

СТЕНД ДЛЯ ИСПЫТАНИЯ КОРОБОК ПЕРЕДАЧ

Номер: RU82330U1

... 1. Стенд для испытания и обкатки коробок передач, содержащий раму с продольными и поперечными направляющими, приводной двигатель, кинематически соединяемый с ведущим валом испытуемой коробки передач, и нагружающий двигатель, кинематически соединяемый с ведомым валом испытуемой коробки передач, отличающийся тем, что он дополнительно содержит автономные опоры для укладки на них испытуемой коробки передач, причем автономные опоры установлены на поперечных направляющих с возможностью перемещения по поперечным направляющим и фиксирования в избранном положении, а поперечные направляющие установлены на продольных направляющих с возможностью перемещения по продольным направляющим и фиксирования в избранном положении. ! 2. Стенд по п.1, отличающийся тем, что он снабжен амортизатором, устанавливаемым между испытуемой коробкой передач и автономной опорой. ! 3. Стенд по п.1, отличающийся тем, что он снабжен струбциной для скрепления испытуемой коробки передач с автономной опорой. ! 4. Стенд по п.1, ...

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10-01-2009 дата публикации

УСТРОЙСТВО ДЛЯ ОБКАТКИ РЕДУКТОРОВ

Номер: RU79671U1

Полезная модель относится к машиностроению и может быть использована в производстве механических передач. Устройство для обкатки редукторов, состоящее из привода, соединенного с входным валом обкатываемого редуктора и нагружателя, соединенного с выходным валом обкатываемого редуктора, выполненного в виде барабана с закрепленным на нем тросом, к которому подвешен груз. Предлагаемое устройство для обкатки редукторов имеет более широкую область применения за счет использования безнагревного нагружателя.

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10-07-2009 дата публикации

СТЕНД ДЛЯ ИСПЫТАНИЙ РЕГУЛЯТОРОВ ТОРМОЗНОЙ РЫЧАЖНОЙ ПЕРЕДАЧИ

Номер: RU84555U1

Стенд испытания регуляторов тормозной рычажной передачи, содержащий пространственный несущий каркас с силовым цилиндром, взаимодействующим с поворотным рычагом, установленным на каркасе, посредством соединительного элемента в виде рамы и пультом управления, отличающийся тем, что пульт управления снабжен электронным блоком управления, который содержит редуктор имитации ступени торможения, связанный с клапаном низкого давления, и редуктор имитации полного служебного торможения, связанный с клапаном низкого давления и клапаном высокого давления, при этом выходы упомянутых клапанов связаны с тормозным цилиндром.

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20-01-2008 дата публикации

ИНЕРЦИОННЫЙ НАГРУЖАТЕЛЬ

Номер: RU70366U1

Изобретение относится к машиностроению и ремонту машин, а именно к испытательным и обкаточным стендам. Сущность изобретения: повышение эффективности обкатки и испытании сборочных единиц, при минимальных затратах электроэнергии. При вращении вала первого нагружателя, присоединенного к входному валу испытуемого узла (например, карданного вала) грузы под действием центробежных сил Рц, двигаясь по направляющим, расходятся в разные стороны по радиусу с помощью тяг, шарнирных сопряжении, и соединенных с жестко закрепленными на валу рычагами, поворачивают вал против часовой стрелки, создавая крутящий момент. В это же время, при вращении вала второго такого же нагружателя, но присоединенного к выходному валу испытуемого узла, грузы под действием центробежной силы Рц, двигаясь по направляющим, расходятся также в разные стороны с помощью тяг, шарнирных сопряжении, и соединенных с жестко закрепленными на валу рычагами, поворачивают вал, создавая крутящий момент противоположно направленный вращению ...

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27-09-2010 дата публикации

РОЛИКОВАЯ МОДЕЛЬ ЗУБЧАТОЙ ПЕРЕДАЧИ

Номер: RU2400720C1

Изобретение относится к машиностроению, а именно к испытательной технике, и может быть использовано при исследованиях работы зубчатых передач. Роликовая модель зубчатой передачи содержит пару сопряженных под нагрузкой роликов, установленных на разных валах, снабженных приводом. Роликовая модель снабжена также устройством задания слою наносимого пластичного смазочного материала необходимой толщины, представляющим скребок. Скребок установлен перпендикулярно рабочей поверхности ролика с возможностью регулирования зазора между ним и поверхностью ролика, а также угла наклона между ним и роликом. Решение направлено на получение более информативных результатов испытаний передачи. 2 ил.

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10-08-2004 дата публикации

СТЕНД ДЛЯ РЕМОНТА РЕДУКТОРА АВТОМОБИЛЯ

Номер: RU39705U1

Полезная модель относится к транспортному машиностроению, в частности, к испытательной технике, а именно, к испытаниям деталей машин, например, редукторов задних мостов легковых автомобилей и может быть использована на станциях технического обслуживания автомобилей и специализированных организациях по ремонту редукторов. Задача - повышение качества ремонта бывшего в эксплуатации редуктора или сборки нового редуктора, упрощение конструкции, повышение надежности в эксплуатации, а также снижение времени ремонта и сборки редуктора. Стенд для ремонта редуктора автомобиля содержит опорное основание и рамку для крепления редуктора, две нагрузочных полуоси, два устройства зажима нагрузочных полуосей, каждое из которых содержит неподвижное и подвижное полукольца с механизмом перемещения последнего относительно неподвижного полукольца. При этом опорное основание жестко соединено с рамкой для крепления редуктора, а каждое устройство зажима нагрузочных полуосей расположено с возможностью размещения ...

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10-02-2022 дата публикации

ЦИФРОВОЙ РЕГИСТРАТОР НЕИСПРАВНОСТИ ТРАНСМИССИИ

Номер: RU209268U1

Полезная модель относится к встроенным диагностирующим системам транспортных и технологических машин. Основная задача регистратора - бесконтактный контроль температуры элементов трансмиссии (подшипники, механические передачи, подвижные и шарнирные соединения, муфты, карданные шарниры и др.), направленный на выявление возможных неисправностей, вызванных механическим изнашиванием. Новый технический результат заключается в повышении точности диагностирования неисправности элементов трансмиссии. Технический результат достигается за счет того, что цифровой регистратор неисправности трансмиссии включает фотоэлемент инфракрасного излучения, объектив, световой индикатор, причем фотоэлемент инфракрасного излучения соединен с аналого-цифровым преобразователем, соединенным с контроллером, в котором записана программа контроля, а контроллер соединен со световым индикатором, все детали соединены на печатной плате, закрепленной неподвижно в корпусе.

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17-01-2018 дата публикации

УСТАНОВКА ДЛЯ ИССЛЕДОВАНИЯ ЗУБЧАТЫХ КОЛЕС

Номер: RU176398U1

Полезная модель относится к области машиностроения, в частности к определению параметров износостойкости, ресурса и предельных параметров выхода из строя зубчатых колес. Заявленная установка для исследования зубчатых колес состоит из статического модуля, закрепленного на основании, включающего опорные элементы, датчики регистрации углового перемещения и крутящего момента, устройство регистрации измерительного сигнала, привод вращения, и подвижного модуля, установленного с возможностью перемещения по направляющим, закрепленным на основании, содержащего опорные элементы, датчики регистрации углового перемещения и крутящего момента, устройство регистрации измерительного сигнала, привод вращения, эталонное зубчатое колесо, установленное на валу и входящее в цепь последовательно соединенных валов, находящихся на одной оси с валом двигателя. Статический и подвижный модули снабжены дополнительными датчиками регистрации крутящего момента и углового перемещении. При этом на подвижном модуле закреплена ...

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27-06-2013 дата публикации

УСТРОЙСТВО ДЛЯ ОПРЕДЕЛЕНИЯ ПОВЕРХНОСТНОГО НАТЯЖЕНИЯ КОМПОЗИЦИОННЫХ МАТЕРИАЛОВ В УСЛОВИЯХ НИЗКИХ ТЕМПЕРАТУР

Номер: RU129642U1

Устройство для определения поверхностного натяжения композиционных материалов в условиях низких температур, содержащее регулируемую стойку под образец, видеокамеру высокого разрешения, персональный компьютер с программным обеспечением, источник света и автоматический дозатор, отличающееся тем, что устройство дополнительно снабжено морозильной камерой, в качестве источника освещения используется светодиодная лампа, а стойка для образцов выполнена автоматически регулируемой.

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Номер: RU2010207C1
Принадлежит: Нургалимов Минулла

Использование: при испытании передач. Цель изобретения - упрощение конструкции стенда, условий измерения параметров нагрузки и контроля качества исполнения испытываемых передач. Стенд для испытания передач по схеме замкнутого контура содержит основание, основной привод, два дифференциала, корпуса которых установлены на основании с возможностью поворота, а водило каждого из них жестко связано с корпусом, дополнительный привод, связанный с корпусом одного дифференциала, и измерительное устройство, связанное с корпусом второго дифференциала. Новым в стенде является то, что дифференциалы выполнены в виде планетарных передач с цилиндрическими зубчатыми колесами и двухвенцовыми сателлитами, имеющими разное число зубьев венцов, одни одноименные валы дифференциалов соединены между собой, а другие подсоединены к замыкающей цепи стенда. 2 з. п. ф - лы, 2 ил.

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Номер: RU2583856C1

Изобретение относится к испытательной технике и может быть использовано при исследованиях процессов массопереноса пластичного смазочного материала при работе зубчатых передач. Модель зубчатого колеса содержит фрагмент зубчатого колеса, состоящего из тела, зубчатого венца и пары кольцевых накладок, выполненных из оптически прозрачного материала, установленных на торцах зубчатого венца и частях тела, прилегающих к торцам венца; причем из пары накладок как минимум одна выполнена съемной. Технический результат заключается в повышении эксплуатационных характеристик модели зубчатого колеса. 2 ил.

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Номер: RU2247348C1

Изобретение относится к испытательной технике. Резонансный стенд для испытания валов на кручение состоит из асинхронного электродвигателя и балансирной машины, соединяемых испытуемым валом, блока управления и резонансного датчика, установленного на испытуемом валу и включенного на вход блока управления. Стенд снабжен преобразователем частоты, цифроаналоговым устройством, тиристорным регулятором напряжения и инвертором. Один выход блока управления соединен с преобразователем частоты, включенным в цепь питания асинхронного двигателя, а другой выход блока управления последовательно соединен с цифроаналоговым устройством и тиристорным регулятором напряжения, к которому подключена обмотка возбуждения балансирной машины, а цепь якоря балансирной машины включена на инвертор. Технический результат: повышение точности испытаний. 1 ил.

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УСТРОЙСТВО ДЛЯ ИСПЫТАНИЯ ЭЛЕМЕНТОВ МАШИН ПРИ НАГРУЖЕНИИ ВСТРЕЧНЫМИ КРУТЯЩИМИ МОМЕНТАМИ

Номер: RU2577794C1

Изобретение относится к области испытательной техники и может быть использовано при обкатке и испытании элементов машин. Устройство содержит два нагружателя инерционного действия с присоединительными валами. При этом вал каждого нагружателя вращается в опорах и жестко закреплен с роликом, к которому прикреплены диаметрально противоположно рычаги с шарнирами на концах для соединения с концами криволинейных и прямолинейных рычагов, на свободные концы которых опираются малые ролики, посаженные на одни свободные концы криволинейных рычагов, а их вторые концы соединены с грузами, расположенными на линии, проходящей через центр вала. Технический результат заключается в расширении технологических возможностей нагружения, упрощении конструкции и уменьшении затрат энергии на привод стендов. 2 ил.

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Номер: RU2256162C1
Принадлежит: ООО "ПО Южуралмаш" (RU)

Изобретение относится к испытательной технике. Стенд состоит из привода, входных валов, для соединения с испытуемыми передачами, выходных валов, нагружателя и замыкающего устройства. Стенд содержит две испытуемые передачи, а замыкающее устройство выполнено в виде зубчатых передач, жестко соединенных между собой, имеющих одинаковое передаточное отношение с испытываемыми зубчатыми передачами и установленных на входных параллельных валах испытываемых зубчатых передач. Нагружателем служит тарированная динамометрическая муфта, соединяющая два выходных вала испытываемых зубчатых передач. Технический результат: упрощение и увеличение производительности испытаний. 3 ил.

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Номер: RU2098788C1

Использование: в испытательной технике, в частности для оценки и контроля качества карданных передач. Сущность изобретения: стенд содержит технологическую карданную передачу, состоящую из полого вала, полых крестовин с внешними вилками и двух валов с присоединительными элементами для присоединения испытуемой карданной передачи. Нагружатель включает рычаги и резьбовые стяжки. 1 ил.

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Номер: RU2696050C1

Изобретение относится к диагностике машин. В способе оценки потерь мощности в коробке передач ТС в опоры коробки передач и/или двигателя устанавливают преобразователи силы, к которым присоединяют измерительное устройство. Разгоняют технически исправное ТС на каждой передаче с максимальным ускорением. Фиксируют пиковые значения усилий на опорах, суммируют эти значения, находят среднее по опорам для соответствующей передачи и принимают его за эталон. Строят зависимость среднего значения пиковых усилий на опорах от включенной передачи и принимают ее за контрольную характеристику. При последующих испытаниях ТС в условиях эксплуатации, при необходимости, доводят до исправного состояния двигатель и сцепление, проводят аналогичные испытания и строят зависимость среднего значения пиковых усилий на опорах от включенной передачи. Сравнивают полученную характеристику с контрольной, определяют отклонение усилий на опорах от эталонных значений и дают оценку потерям мощности в коробке передач. Снижается ...

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СТЕНД ДЛЯ ИСПЫТАНИЙ НЕВРАЩАЮЩИХСЯ ЭЛЕМЕНТОВ АВТОМАТА ПЕРЕКОСА ВЕРТОЛЕТА

Номер: RU2760598C1

Изобретение относится к области испытательного оборудования, используемого при производстве летательных аппаратов. Стенд для испытаний невращающихся элементов автомата перекоса вертолета содержит раму (1) с закрепленными на ней нагружающими устройствами, а также средства измерения. Нагружающие устройства, шарнирно закрепленные на основании (2) рамы (1), выполнены в виде гидравлических силовозбудителей (3, 4, 5, 6, 7), каждый из которых снабжен датчиком силы, на которых закреплены шарнирные подшипники (11), соединенные с имитатором вращающейся тарелки (9) автомата перекоса (5). Силовозбудитель (7) через шарнирный подшипник (28), закрепленный на датчике силы (13), соединен с рычагом (26) общего шага автомата перекоса (14). Рычаги продольного (36) и поперечного (37) управления шарнирно соединены тягами (38, 39) с тумбой (3) рамы (1). Имитатор вращающейся тарелки (9) шарнирно соединен тягой (48) с реактивной стойкой (4) рамы (1). В тягах (17, 18) смонтированы датчики силы (20, 21). Обеспечивается ...

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СПОСОБ СПЕКТРАЛЬНОЙ ВИБРОДИАГНОСТИКИ НАГРУЖЕННОСТИ ЗУБЬЕВ ЗУБЧАТЫХ ПЕРЕДАЧ МОБИЛЬНЫХ МАШИН

Номер: RU2327966C1

Изобретение относится к измерительной технике и может быть использовано для исследования вибраций в зубчатых передачах. Способ включает снятие параметров вибраций с корпуса диагностируемой передачи и последующее выделение, путем полосовой фильтрации, исходного сигнала колебаний корпуса, вызванных ударными нагрузками, определение огибающей отфильтрованного сигнала и спектра огибающей. Затем производят выделение из полученных данных информативных составляющих, в качестве которых служат амплитуды снятых параметров вибраций, и определение их статических характеристик и оценку по ним динамической нагруженности зубьев. Обработку огибающего отфильтрованного сигнала производят последовательно при сглаживании огибающей и определении основной частоты огибающей из анализа ее спектра. Далее производят определение числа периодов импульсов колебаний корпуса за время эксперимента, вычисление производной огибающей и минимумов огибающей, определение границ разделов и длительности периодов между импульсами ...

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УСТРОЙСТВО ДЛЯ ДИАГНОСТИРОВАНИЯ ТРАНСМИССИИ ТРАНСПОРТНЫХ СРЕДСТВ

Номер: RU93056134A
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Устройство относится к области технической диагностики транспортных средств, в частности к устройствам для диагностирования трансмиссии, и может быть использовано для контроля и диагностирования автомобилей и других колесных транспортных средств с карбюраторными двигателями в процессе их изготовления, технического обслуживания и ремонта. Цель изобретения - упрощение устройства, уменьшение его стоимости и сокращение трудоемкости диагностирования за счет возможности представления результатов измерений в общепринятых единицах. Устройство для диагностирования трансмиссии транспортных средств содержит датчик углового положения коленчатого вала двигателя, формирователь импульсов, блок делителей частоты импульсов, выключатель, переключатель, триггеры, элементы совпадения, счетчики импульсов, схемы сравнения, задающие элементы и генератор опорной частоты. Новым в устройстве является введение в него блока делителей частоты импульсов, выключателя, переключателей, схем сравнения, задающих элементов ...

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СПОСОБ ЭКСПЕРИМЕНТАЛЬНОГО ИССЛЕДОВАНИЯ УДАРНЫХ ПРОЦЕССОВ В ПРЯМОЗУБНЫХ ЦИЛИНДРИЧЕСКИХ ПЕРЕДАЧАХ

Номер: RU2003125067A
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Способ экспериментального исследования ударных процессов в прямозубых цилиндрических передачах, включающий определение начальной скорости соударения по предварительному отклонению от вертикали поворотной траверсы, шарнирно соединенной с корпусом, на котором жестко закреплен деформируемый материал, отличающийся тем, что при вертикальном положении поворотной траверсы на одной вертикали расположены: ось вращения поворотной траверсы, ось зубчатого колеса-ударника, жестко закрепленного на подвижном конце поворотной траверсы, и ось зубчатого колеса-наковальни, жестко соединенного с корпусом, а боковые поверхности зубьев колес при вертикальном положении поворотной траверсы контактируют в полосе зацепления зубчатой передачи, кроме этих двух контактирующих зубьев зубья колес, препятствующие отклонению поворотной траверсы от вертикали, срезаны, расстояние между центрами зубчатого колеса-ударника и зубчатого колеса-наковальни равно межосевому расстоянию исследуемой зубчатой передачи и начальная скорость ...

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Способ виброакустической диагностики передач зацеплением

Номер: RU2002113404A
Принадлежит:

... 1. Способ виброакустической диагностики передач зацеплением, в котором предварительно фиксируют частоту вращения входного вала диагностируемой передачи, рассчитывают зубцовые и кратные им частоты, по ним настраивают узкополосные фильтры, снимают сигнал с вибродатчика, установленного на корпусе диагностируемой передачи, фильтруют его упомянутыми узкополосными фильтрами и полученные диагностические данные фиксируют в памяти вычислительного средства в реальном масштабе времени в виде цифровой последовательности, в последней выбирают массивы данных, кратные целым числам оборотов диагностируемых колес и колебаниям, генерируемым отдельными зубьями, после чего по параметрам колебаний оценивают техническое состояние диагностируемых зубчатых колес и их зубьев, отличающийся тем, что съем данных осуществляют при различных нагружающих моментах на выходном валу диагностируемой передачи, а в качестве диагностических параметров используют величины размахов колебаний вибрационного сигнала и их отношения ...

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Способ виброакустических исследований транспортных средств, оснащённых трансмиссией с механическим приводом сцепления, и устройство для его осуществления

Номер: RU2737057C1

Изобретение относится к области технической акустики, в частности к виброакустическим исследованиям транспортных средств, оборудованных трансмиссией с механическим приводом фрикционного сцепления. При реализации способа исследуемое транспортное средство устанавливают на беговые барабаны динамометрического стенда, расположенного в акустической полубезэховой камере. В салоне транспортного средства в регламентируемых контрольных точках устанавливают измерительные микрофоны. Осуществляют серию предварительных заездов транспортного средства на беговых барабанах с одновременной записью параметров шума, регистрируемых измерительными микрофонами на различных режимах работы механической коробки переключения передач. Включение-выключение сцепления, при смене ступеней коробки передач в процессе предварительных заездов, выполняет водитель транспортного средства с помощью штатного привода механизма включения сцепления. После завершения серии предварительных заездов осуществляют демонтаж элементов привода ...

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Номер: RU2827734C1

Изобретение относится к устройствам для направления подвижных частей. Направляющее устройство вкладышного типа для направления оси содержит металлический компонент в форме вкладыша, обеспеченный поверхностью трения, предназначенной для размещения оси в контакте трения посредством скольжения с колебательным движением; систему обнаружения износа поверхности трения, содержащую датчики; беспроводную систему связи, связанную с системой обнаружения износа для передачи информации об износе поверхности трения из направляющего устройства. Датчики расположены на одной продольной стороне или на двух продольных сторонах вкладыша. Каждая продольная сторона образована не более чем двумя пятыми длины кольцевого вкладыша. Шарнирное соединение содержит направляющее устройство и ось, установленную в контакте трения посредством скольжения с колебательным движением по поверхности трения. Улучшается обнаружение износа. 2 н. и 8 з.п. ф-лы, 6 ил.

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Стенд для испытания электроприводов

Номер: RU2737738C1

Изобретение относится к испытаниям в машиностроении. Сущность: стенд для испытания электроприводов содержит нагрузочный привод, систему автоматического управления, нагрузочный асинхронный электродвигатель. Выходное звено нагрузочного привода выполнено с возможностью кинематического соединения с выходным звеном испытуемого электропривода и снабжено датчиком крутящего момента. Система автоматического управления соединена с нагрузочным приводом, выполнена с возможностью управления оператором и имеет вход и выход. Вход системы автоматического управления соединен с датчиком крутящего момента. Выходное звено нагрузочного привода дополнительно снабжено датчиком положения, соединенным со входом системы автоматического управления. Нагрузочный привод включает нагрузочный асинхронный электродвигатель, снабженный цифровым датчиком скорости, электромагнитную тормозную муфту, и волновой редуктор с промежуточными телами качения. Система автоматического управления соединена выходом со статором нагрузочного ...

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27-06-2006 дата публикации

ОБРАЗЦЫ ДЛЯ ИСПЫТАНИЯ МАТЕРИАЛОВ И СМАЗОЧНЫХ СРЕДЧЕРВЯЧНЫХ ПЕРЕДАЧ

Номер: RU2279049C1

Изобретение относится к испытательной технике. Образцы, имитирующие виток червяка, выполненного в виде тела вращения, осевой профиль активной поверхности которого совпадает с нормальным профилем витка и наружный диаметр которого равен наружному диаметру червяка, и зуб червячного колеса, выполненного в виде зуба червячного колеса, делительный диаметр которого равен делительному диаметру имитируемого червяка, находятся в контакте. Образец, имитирующий виток червяка, выполнен в виде витка натурного червяка с углом подъема витка червяка, равным натурному углу подъема витка червяка, осевой профиль активной поверхности которого равен наружному диаметру червяка. Образец, имитирующий зуб червячного колеса, выполнен в виде зуба натурного червячного колеса с углом наклона зуба червячного колеса, равного углу подъема витка червяка. Технический результат: обеспечение распределения нагрузки, соответствующей натурным нагрузкам вдоль контактных линий и расширение диапазона воспроизведения условий образования ...

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27-04-2022 дата публикации

Способ диагностики элементов механических трансмиссий

Номер: RU2766269C9

Изобретение относится к методам диагностики технического состояния элементов механических трансмиссий в эксплуатации. Сущность способа заключается в контроле величины и скорости увеличения диагностической температуры контрольных точек для диагностики при испытаниях. Путем создания трехмерной модели элемента трансмиссии, приложения к ней температурных нагрузок в зоне трения и от смежных тепловыделяющих узлов, разбиения трехмерной модели на сетку конечных элементов производят расчет и получают значение диагностической температуры в зоне, предназначенной для диагностирования. Затем рассчитывают значение коэффициента пропорциональности конечно-элементной модели путем деления диагностической температуры на температуру в зоне трения. В процессе эксплуатации производят непрерывный или периодический контроль диагностической температуры, делят эту величину на значение коэффициента пропорциональности конечно-элементной модели и получают величину температуры в зоне трения во время эксплуатации и сравнивают ...

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22-10-2020 дата публикации

Гидравлический моментный нагружатель для испытаний зубчатых передач и редукторов в замкнутом контуре

Номер: RU2734722C1

Изобретение относится к машиностроительной отрасли промышленности, преимущественно к редукторостроению в различных областях техники. Гидравлический моментный нагружатель содержит цилиндропоршневую пару, цилиндр которой укреплен на первом из нагружаемых валов и имеет на своей внутренней поверхности направляющие, исключающие возможность проворачивания поршня, размещенного внутри цилиндра и образующего в цилиндре надпоршневую полость, соединенную с трубопроводом гидравлической среды. Поршень выполнен полым, внутренняя поверхность которого сопряжена посредством несамотормозящейся винтовой передачи со вторым из нагружаемых валов, сопряженным с корпусом гидроцилиндра через упорный подшипник. Соединение надпоршневой полости с трубопроводом гидравлической среды выполнено посредством осевого сверления первого вала, к которому гидравлическая среда подводится через радиальное отверстие вала, размещенное в уплотнительном блоке, выполненном в виде встречно установленных торцевых уплотнений, размещенных ...

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18-03-2020 дата публикации

Способ диагностики технического состояния зубчатого зацепления

Номер: RU2717139C1

Изобретение относится к способам диагностики технического состояния редукторов двигателей и может быть использовано в оценке технического состояния редукторов. Способ заключается в том, что разделяют сигналы на положительную и отрицательную составляющие, производят анализ каждой составляющей, сравнивают полученные результаты по амплитуде, причем предварительно выделяют максимумы по модулю положительной и отрицательной областей, производят их анализ, сравнивают полученные данные и по результатам сравнения определяют техническое состояние зубчатой передачи. Технический результат заключается в расширении функциональных возможностей, повышении чувствительности измерений. 1 ил.

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10-07-2020 дата публикации

ЛАБОРАТОРНЫЙ СТЕНД ДЛЯ ИСПЫТАНИЙ НА КОНТАКТНУЮ УСТАЛОСТЬ ПАР ТРЕНИЯ КАЧЕНИЯ ТИПА "ЦИЛИНДР-ЦИЛИНДР"

Номер: RU2726255C1

Изобретение относится к области машиностроения, в частности к конструкции машин трения, моделирующих трибологические процессы в парах трения качения «цилиндр-цилиндр», и предназначено для определения зависимости контактной усталости цилиндрических поверхностей от угла перекоса между их осями. Стенд представляет собой фрикционную передачу, приводящуюся во вращение с помощью электродвигателя, содержит опорную раму с установленными на ней сварными нижним и верхним полукорпусами, размещенные в этих полукорпусах нижние и верхние опоры с установленными в них верхним и нижним валами. Верхний вал расположен в плавающей опоре, установленной с возможностью движения относительно верхнего полукорпуса посредством линейных направляющих. На верхний полукорпус установлена крышка с вертикальным резьбовым отверстием для установки нажимного винта с рычагом. В полости между крышкой и плавающей опорой установлен электронный динамометр сжатия, под которым расположен шарик. В качестве нижних опор использованы ...

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27-03-2012 дата публикации

НАГРУЖАЮЩЕЕ УСТРОЙСТВО ДЛЯ ОБКАТКИ И ИСПЫТАНИЯ ЭЛЕМЕНТОВ МАШИН

Номер: RU2010138922A
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... 1. Нагружающее устройство для обкатки и испытания элементов машин, содержащее присоединительные валы и грузы, отличающееся тем, что оно имеет два нагружателя, которые при вращении создают на входном валу испытуемого элемента первым нагружателем и выходном валу того же испытуемого элемента вторым нагружателем противоположно направленные одинаковые крутящие моменты за счет того, что каждый нагружатель нагружающего устройства снабжен по крайней мере двумя грузами, соединенными рычагами с его валом, которые соединены с входным и выходным валами испытуемого элемента. ! 2. Нагружающее устройство для обкатки и испытания элементов машин по п.1, отличающееся тем, что первый нагружатель содержит вал, установленный в двух опорах, закрепленный на нем ролик, к которому жестко прикреплены диаметрально противоположные рычаги с шарнирами поворота и скольжения на концах и с шарнирами поворота, примерно посередине, соединяющие криволинейные и фигурные рычаги с грузами. ! 3. Нагружающее устройство для обкатки ...

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20-04-2004 дата публикации

УСТРОЙСТВО ДЛЯ ВИБРОАКУСТИЧЕСКОЙ ДИАГНОСТИКИ ПЕРЕДАЧ ЗАЦЕПЛЕНИЕМ

Номер: RU2002123956A
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... 1. Устройство для виброакустической диагностики передач зацеплением, включающее по меньшей мере один канал выделения измерительной информации, содержащий измерительный тракт контроля виброакустического сигнала, состоящий из последовательно соединенных первичного преобразователя виброкустического сигнала, первого регулируемого усилителя, регулируемого полосового фильтра и первого аналого-цифрового преобразователя, измерительный тракт контроля частоты вращения, состоящий из последовательно соединенных датчика частоты вращения, второго регулируемого усилителя и второго аналого-цифрового преобразователя, и контроллер; программируемый вычислитель, индикатор и регистрирующее устройство, входы которых связаны с соответствующими выходами программируемого вычислителя, отличающееся тем, что в каждый канал выделения измерительной информации введен дополнительный тракт формирования электрического сигнала, включающий цифроаналоговый преобразователь, программно-управляемый избирательный фильтр на основе ...

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06-02-2025 дата публикации

ВИБРОИЗОЛИРУЮЩЕЕ КРЕПЛЕНИЕ КУЗОВА К РАМЕ ТРАНСПОРТНОГО СРЕДСТВА

Номер: RU231722U1

Полезная модель относится к транспортному машиностроению, а именно к виброизолирующим креплениям кузова к раме специального микроавтобуса, в частности - используемого в качестве машины скорой медицинской помощи. Технический результат - повышение виброизоляции пола кузова транспортного средства. Указанный технический результат достигается тем, что виброизолирующее крепление кузова к раме транспортного средства содержит несущее основание, крепежный элемент и резиновую вставку, при этом несущее основание выполнено в виде конического основания с конусной крышкой, крепежный элемент выполнен в виде шпильки, снабженной насадкой со сферической опорной поверхностью, размещенной в сферическом пазу фрикционного элемента, а на шпильке закреплен конический резиновый отбойник.

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07-02-2025 дата публикации

ВИБРОИЗОЛИРУЮЩЕЕ КРЕПЛЕНИЕ КУЗОВА К РАМЕ ТРАНСПОРТНОГО СРЕДСТВА

Номер: RU231736U1

Полезная модель относится к транспортному машиностроению, а именно к виброизолирующим креплениям кузова к раме специального микроавтобуса, в частности используемого в качестве машины скорой медицинской помощи. Технический результат - повышение виброизоляции пола кузова транспортного средства. Указанный технический результат достигается тем, что виброизолирующее крепление кузова к раме транспортного средства содержит несущее основание, крепежный элемент и резиновую вставку, при этом несущее основание выполнено в виде конического основания с конусной крышкой, в пазах которых установлены конические втулки, крепежный элемент выполнен в виде стержня с резьбой на одном конце и сферой на другом, а резиновая вставка размещена между коническими втулками.

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30-09-1983 дата публикации

Стенд для испытания фрикционных сцеплений

Номер: SU1045045A2
Принадлежит:

СТЕНД ДЛЯ ИСПЫТАНИЯ ФРИКЦИОННЫХ СЦЕПЛЕНИЙ по авт, ев, N 675332, отпичаюшийс я тем, что, с цепью-расширения функ ционапьных возможностей, он снабжен втупкоА планетарным редуктором с води пом и сопнечной и апнинкгтческой шестер HHMKf двумя зубчатыми передачами и до-попннтепьиым фрикционным сцеппенкем с ведущими и ведомыми с искам и, ведущие диски смонтированы на наружной псвврх ности барабана , а ведомые - не внутреН. ней поверхностн подвижного кольца, ycf йновпенного концентрично барабану один конец допопнитепьного вала через первую зубчатую передачу связан с барабаном а другой через вторую зубчатую передв чу соединен с водипом ппачетарного ре дуктора( согшечная шестерня которого жестко соединена с втудкойс а зпииикпк -ческея шестерня - с Konj.dUiMs пркчзь передаточные отвошенг.я ппанзтар.кого редуктора к зубчатуя перэдв-- не равны между собой.

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23-04-1983 дата публикации

Стенд для испытаний ведущего моста автомобиля

Номер: SU1013702A2
Принадлежит:

... 1. СТЕНД ДЛЯ ИСПЫТАНИЙ ВЕДУЩЕГО МОСТА АВТОМОБИЛЯ по авт. св. № 332348, отличающийся тем, что, с целью уменьшения затрат труда при обслуживании обкаточного, стенда путем компенсации утечек масла .из бака-дозатора, он снабжен расположенным по высоте между баком-дозатором и испытуемым мостом закрытым компенсационным баком, нижняя часть которого соединена компенсационным трубопроводом с нижней частью бака-дозатора и разгрузочным клапаном с размыкающим элементом, взаимодействующим с корпусом испытуемого моста, при этом нижний конец трубки, подающей смазку в корпус испытуемой передачи из бакадозатора , расположен выше уровня выходного отверстия компенсационного трубопровода . 2. Стенд по п. 1, отличающийся тем, что, с, целью возврата утечек масла из корпуса силовой передачи в систему подачи, он снабжен поддоном, расположенным под испытуемым мостом, соединенным трубопроводом возврата утечек с нижней частью компенсационного бака, а разгрузочный клапан расположен на входе трубопровода возврата утечек ...

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15-07-1986 дата публикации

Стенд для испытания карданных передач

Номер: SU1244537A1
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Изобретение относится к транспортному машиностроению. Стенд позволяет снизить трудоемкость работ .при испытаниях и расширить диапазон нагрузок на испытываемые карданные передачи . От привода I враацение передается на испытываемую карданную передачу 4 и далее через вал 3 и испытываемую карданную передачу 5. на на- гружатель 2. Осевые перемещения в осевых компенсаторах карданных передач создает качающаяся , серьга 7, Величина осевых перемещений задается кулачком 8, установленным свободно на оси серьги, который поворачивается при отклонении серьги в бдну сторону за счет фрикционного механизма и тормозится при отклонении серьги в другую сторону с помощью храпового механизма. Профиль кулачка 8 ется, исходя из требуемого закона распределения величин скольжения ° в осевых компенсаторах,испытываемых карданных валов. 2 ил. сл с А ...

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15-07-1986 дата публикации

Стенд для исследования фрикционных элементов управления трансмиссией гусеничных машин

Номер: SU1244534A1
Принадлежит:

Изобретение относится к стендам для исследования процессов буксования в фрикционных элементах управления трансмиссией гусеничных машин. Цель изобретения - расширение фрикционных возможностей. На основании 1 установлен приводной двигатель 2 (ПД). Входной вал гидроуправляемой муфты 3 кинематически , соединен с ПД. Инерционная масса 4 установлена на выходном валу гидроуправляемой муфты. Входной вал редуктора 5 соединен с валом инерционной массы. Выходной вал 6 .посредством соединительной муфты 7 соединен с ведущим валом 8 фрикционного элемента 9 управления. Гидронасос 12 соединен посредством передачи 13с 1Щ. Дополнительный гидронасос 14 соединен посредством передачи 15 с ведущим валом 8 фрикционного элемента управления. Гидроуправляемая муфта буксует, создавая максимальный кру- тящий момент на ведущем валу. 1 ил. -3 6 (О 7 ю L 11 7777/ ...

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15-08-1986 дата публикации

Нагружатель к стендам замкнутого контура

Номер: SU1250872A1
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Изобретение относится к испытательной технике и может быть использовано в качестве нагружателя для стендов замкнутого контура. Целью изобретения является повышение технологических возможностей за счет создания различных режимов работы нагружателя. С помош,ью механизма переключения задается режим нагруже- ния. Может быть задано положение, при котором нагружатель блокируется и работает в режиме муфты. Два другие положения обеспечивают нагружение и разгрузку контура стенда. 1 ил. to сд о 00 to ...

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07-08-1986 дата публикации

Дифференциальный нагружатель

Номер: SU1249371A1
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Изобретение относится к нагружающим устройствам стендов замкнутого контура и обеспечивает приближение создаваемых нагрузок к эксплуатационным. При включении стенда копир взаимодействует с роликами и величина сопротивления пере- мепденного копира, задаваемая поджимом к нему роликов, определяет нагрузку в контуре стенда. 1 з.п. ф-лы, 3 ил. ю 4 ;о 00 ...

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23-08-1986 дата публикации

Способ испытания механических коробок передач на самопроизвольное выключение

Номер: SU1252688A1
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Изобретение относится к испытательной технике и может быть использовано для испытания мех 1ничес- ких коробок передач на самопроизвольное выключение. Целью изобретения является повьппение достоверности испытаний. При испытаниях определяют усилие, Требуемое для переключения рычага управления на различных уровнях нагрузки, принимая за начальный работу на холостом хс- ДУ Другие уровни нагрузки задаются тормозным моментом и отличны друг от друга не менее чем на 5% от номинальной нагрузки. Таким образом проводят измерения на всех рычагах управления испытуемой коробки, поддерживая на каждой передаче постоянную частоту вращения ведущего вала не менее 40% от номинальной. Если с увеличением нагрузки усилие на рычаге управления возрастает, то принимается , что самовыключения не произойдет , если же усилие уменьщается, то коробка считается не годной на данной передаче. 2 з.п. ф-лы, 1 ил. i (Л N9 СЛ СХ) 00 ...

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23-04-1986 дата публикации

Стенд замкнутого контура для испытания зубчатых редукторов

Номер: SU1226106A1
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Изобретение относится к стендам для испытаний по схеме замкнутого контура зубчатых редукторов. Цель изобретения - расширение технологических возможностей за счет увеличения числа испытуемых редукто- ров, имеющих по крайней мере два ведомых вала с противоположным направлением вращения. Каждый из ведомых валов испытуемых редукторов входит в отдельный замкнутый контур, включающий нагружатель в виде дифференциала . При испытаниях нагрузка создается в каждом контуре независимо . 1 з.п. ф-лы, 2 ил. (Л С ...

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23-10-1986 дата публикации

Стенд для испытания цепей

Номер: SU1265515A2
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Изобретение относится к испытательной технике и может быть использовано для изготовления втулочных и втулочно-роликовых цепей и для исследовательских работ. Цель изобретения - повышение достоверности результатов испытаний за счет снабжения стенда механизмом поворота и фиксации штоков относительно оси их перемещения. С помощью стенда возможно проведение испытаний отрезков цепей в различных средах, которыми заполняется камера, регистрация относительных перемещений валика и втулки испытуемой цепи и регистрация увеличения длины ее испытуемого участка. Конструктивной особенностью стенда является наличие в нем поворотного штока, с помощью которого один конец испытуемого отрезка цепи поворачивают относительно другого на определенный угол, имитируя поворот цепи, имеющий место в цепных передачах в результате поворота плоскостей звездочек. 10 ил.

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15-08-1986 дата публикации

Стенд для испытания главных передач трансмиссий транспортных средств по замкнутому контуру

Номер: SU1250871A2
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Изобретение относится к испытательной технике и может быть использовано для испытания главных передач трансмиссий транспортных средств по замкнутому контуру и является усовершенствованием известного стенда, описанного в авт. св. № 1048347. Целью дополнительного изобретения является расширение диапазона создаваемых нагрузок. Пультом управления задается программа изменения нагрузки. Корпусы четырех испытуемых передач, включающих дифференциалы, связаны тягой, расположение точек крепления которой к корпусам передач выбрано в зависимости от направления вращения. Нагрузка создается гидроцилиндром, воздействующим на тягу. Распределение нагрузки осуществляется диф- з ференциалами испытуемых передач. Это уменьшает влияние на процесс испытания жесткости и зазоров в испытуемых передачах . 4 ил. (Л to 01 о 00 5 ...

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30-09-1988 дата публикации

Стенд с замкнутым силовым контуром для испытания узлов силовых передач транспортных машин

Номер: SU1427199A2
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Изобретение относится к транспортному машиностроению. Цель изоб-. .ретения - повьшение точности имитации нагрузки на полуоси и корпусные детали испытуемых силовых передач. Стенд снабжен вторым формирователем 28 случайных сигналов и механизмом ...

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30-05-1991 дата публикации

Устройство для диагностики зубчатых передач

Номер: SU1652854A2
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Изобретение относится к машиностроению , а именно к испытательной технике, и может быть использовано при технической диагностике зубчатых передач как при испытании, так и контроле их состояния и работоспособности непосредственно в процессе эксплуатации. Целью изобретения является повышение точности измерения при малых величинах износа путем одг новременного изменения взаимного перекрытия и осевого расстояния накладок на диске и соосном колесе тестируемой передачи, являющихся датчиком электроемкости. При работе колес 1 и 2 диагностируемой передачи вследствие износа увеличивается боковой зазор и происходит взаимное угловое смещение основных и дополнительных накладок-обкладок конденсатора , представляющий собой чередующиеся слон изоляционного материала и металла на диске 5 и соосном колесе 1. Одновременно за счет выполнения накладок в виде торцовых храповиков происходит взаимное осевое смещение накладок. Изменение электроемкости измеряется датчиком в виде измерителя емкости, сигналы с которых ...

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23-04-1991 дата публикации

Гидравлическое нагружающее устройство

Номер: SU1643821A1
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Изобретение м.б. использовано в стендах для испытаний на надежность и ресурс механических приводов и г а 13 трансмиссий в качестве нагружателя. Цель изобретения - повышение надежности гидравлического нагружающего устр-ва за счет демпфирования ротора (Р) в крайних точках его хода и улучшении температурного режима работы . В корпусе 1 с выступами на тгут- ренней поверхности соосно размещен РЗ .с лопастями. Лопасти образуют с выступами рабочие полости, связанные с линиями 7, 8 подачи рабочего тела 14ереэ основные каналы (К). В выступах со стороны полостей выполнены полости в виде карманов и соединительные К их связи с основными К. Каждый из четырех обратных клапанов (Л С О 4 со GO to Риг.1 ...

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15-09-1991 дата публикации

Привод для испытаний агрегатов трансмиссии транспортного средства

Номер: SU1677559A1
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Изобретение относится к транспортному машиностроению и может быть использовано для испытаний агрегатов трансмиссии транспортных средств. Цель изобретения - снижение трудоемкости испытаний . Привод содержит гидромотор 1, вал 10 которого соединительной муфтой соединяется с входным валом испытываемого агрегата. К корпусу гидромотора 1 средней частью прикреплен двуплечий рычаг 3. На обоих концах двуплечего рычага 3 закреплены оси 5, на которых шарнирно установлены планки 6 с отверстиями 7. При вращении гидромотора 1 реактивный момент воспринимается гибкими тягами 8, связанными с основой испытываемого агрегата и с обоими концами двуплечего рычага 3. 12 ил, (Л С о 4 J СЛ СЛ Ю фиг.1 ...

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07-09-1991 дата публикации

Стенд для испытания кинематических цепей

Номер: SU1675720A1
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Изобретение относится к машиностроению , а именно к испытательной технике и может быть использовано при механической обработке и испытании зубчатых кинематических цепей. Целью изобретения является расширение технологических возможностей . При включении регулируемого привода 3 и нагружателя 4 создаются требуемые скоростной и нагрузочный режимы работы зубчатой пары испытуемых валов 7 и 8 По показаниям датчиков 12 измерительных приборов контролируют кинематическую точность 3 ил ...

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07-11-1991 дата публикации

Инерционный нагружатель

Номер: SU1689781A1
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Изобретение относится к машиностроению и может быть использовано в стендовом оборудовании для испытания передач вращательного действия. Целью изобретения является расширение эксплуатационных возможностей за счет обеспечения возможности воспроизведения сложных законов нагружения. При вращении приводного вала 2 с водилом 4 сателлиты 5 и 10 обкатываются вокруг неподвижных центральных колес 3 и 9. Дебалансы 6 и 12, обкатываясь по кулачкам 8 и 11, перемещаются в радиальном направлении относительно сателлитов 5 вдоль направляющих. При этом кулачки 8 закреплены на водиле 4, а кулачки 11 - на сателлитах 10. Перемещение дебалансов 6 и 12 в радиальном направлении обеспечивает постоянное изменение статического момента их массы относительно оси вращения сателлитов и соответствующее изменение момента сопротивления на водиле 4 и приводном валу 2. Установка кулачков различного профиля позволяет расширить эксплуатационные возможности нагружателя при воспроизведении сложных законов нагружения. 1 з.п. ф-лы ...

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15-10-1988 дата публикации

Стенд для испытания механических передач

Номер: SU1430784A1
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Изобретение относится к машиностроению , а именно к испытательной технике, и может быть использовано при испытании реверсивных механических передач, например трансмиссий транспортных средств. Целью .изобретения является расширение технологичес .ких возможностей путем увеличения номенклатуры испытуемых передач и уменьшения металлоемкости стенда. Свя-- занные через первое 7 и второе 8 ком- . мутационные устройстза статорные обмотки синхронных дополнительного двигателя 9 и тормозного генератора 6 выполнены с изменяемым числом пар полюсов , максимальные и минимальные числа которых с учетом передаточного отношения импульсной передачи 4 выбраны по установленной зависимости. При запуске стенда асинхронный-двигатель 1 вращает валы импульсной передачи 4 и синхронных генератора 6 и дви- гателя 9. Б зависимости от знака и j величины задающего сигнала и сигнала рассогласования будет определяться величина и „знак момента скручивания валов испытуемой передачи 4, создаваемого синхронными генератором 6 ...

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07-10-1988 дата публикации

Стенд для испытания трансмиссий транспортных средств

Номер: SU1428976A1
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Изобретение относится к транспортному машиностроению и может быть использовано при испытаниях трансмиссий транспортных средств. Цель изобретения - снижение металлоемкости. На входном валу 1 испытуемой транс- миссш 2 последовательно установлены синхронгалй электродвигатель 3 и при водной асинхронный электродвигатель 4. На выходном валу 7 установлена асинхронная машина 8 с короткозамкнутым ротором, статорные обмотки которой соединены со статорными обноткдми синхронного электродвигателя 3. При отношении числа пар полюсов асинхронной машины 8 и синхронного электродвигателя 3, меньшем передаточного числа испытуемой трансмиссии 2, на- гружение ее крутящим моментом осуществляется без использования технологической коробки передач. 1 ил. г СП ...

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23-06-1985 дата публикации

Стенд для испытания трансмиссий

Номер: SU1163177A1
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СТЕНД ДЛЯ ИСПЫТАНИЯ ТРАНСМИССИЙ , содержавши привод, кинемати чески соединенный с входным валом испытуемой трансмиссии, тормозной генератор постоянного тока, кинематически соединенный с вьиодным вало испытуемой трансмиссии, электродвигатель постоянного тока, кинематически соединенный с п иводом и свя .занный электрической цепью с тормоз ным генератором постоянного тока, датчик тока, включенный в эту электрическую цепь, задающее устройство сумматор, первый вход которого соединен с задающим устройством, а вто рой - с датчиком тока, усилитель 13 1ЖШЮТ Ж;Г мощности, выход которого соединен с обмоткой возбуждения электрюдвигате ля постоянного тока, и дополнитель- . ный усилитель мощности, отличающийся тем, что, с целью повышения точности воспроизведения эксплуатационных режимов нагружения, он снабжен двумя регулируемыми источниками постоянного тока, двумя дополнительными сумматорами и инвертором , при этом выход сумматора соединен с первым входом первого допрлнительногд сумматора и с входом ...

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23-04-1992 дата публикации

Стенд для испытания длинных трансмиссий

Номер: SU1728704A1
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Изобретение относится к машиностроению , а именно к испытательной технике, и может быть использовано в электрических стендах для испытания механических передач с существенно ограниченной жесткостью . Целью изобретения является сокращение продолжительности испытания за счет уменьшения времени на достижение требуемой величины нагрузки путем повышения эффективности демпфирования упругих колебаний в испытуемой трансмиссии. При работе стенда сигналами с задатчиков 6 и 8 скорости и нагрузочного момента через устройства 5 и 7 регулирования скорости и момента нагружения устанавливают требуемые скоростной и нагрузочные режимы испытуемой трансмиссии 4 при помощи приводного двигателя 1 и нагружателя 2. Демпфирование упругих колебаний трансмиссии 4 осуществляется по сигналам обратной связи с газогенераторов 9 и 10 и дифференциального усилителя 11, поступающим на устройство 7 регулирования момента нагружения. 1 ил. (Л ...

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15-01-1982 дата публикации

Способ испытания фрикционных устройств

Номер: SU898274A1
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15-03-1985 дата публикации

Стенд для испытания передач винт-гайка

Номер: SU1145260A1
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... 1. СТЕНД ДЛЯ ИСПЫТАНИЯ 1пЕРЕДАЧ ВИНТ-ГАЙКА, содержащий станину с направляющей, опоры, предназначенные дпя размещения винта испытуемой передачи, кронштейн, предназначейньй для установки гайки испытуемой передачи, нагружающее устройство ;Г(Г -:У-Т-; v,) - - - i и привод, кинематически связьшаемые с винтом испытуемой передачи, и установленный на кронштейне датчик момента, отличающийся тем, что, с целью повышения точности изменения момента холостого хода, опоры закреплены на станине, а стенд снабжен предназначенным для размещения на гайке испытуемой передачи устройством имитации импульсной смазки и взаимодействующим с датчиком момента гибким поводком, один конец которого связан с кронштейном, другой размещен в направляющей. 2. Стенд по п.1, отличающ и и с я тем, что.устройство .имита-; ции импульсной смазки представляет со (Л бой корпус, размещенные в нем плунжерный насос со щтоком, взаимодействующим с одной из опор, и полость для смазки, связанную с рабочей полостью насоса. ел ю б: ...

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30-11-1992 дата публикации

Стенд для испытания трансмиссии транспортных средств

Номер: SU1778602A1
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Использование: машиностроение, средства для испытания на надежность и ресурс. Сущность изобретения: приводной стенд содерхшт основание, приводной двигатель, предназначенный для соединения с входным валом испытываемой трансмиссии, и две понижающие передачи, предназначенные для соединения входными валами с соответствующими выходными валами испытываемой трансмиссии. Выходной вал каждой понижающей передачи соединен с кривошипом. На основании шарнирно установлены два гидроцилиндра, шток каждого из которых соединен с соответствующим кривошипом . Полости гидроцилиндров соединены гидросистемой, состоящей из гидроаккумулятора, манометра и соединенных последовательно дросселя и маслоохладителя. 1 ил.

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28-02-1992 дата публикации

Стенд для исследования динамических характеристик передач

Номер: SU1716361A1
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Изобретение относится к машиностроению и может быть использовано при исследовании динамических процессов, протекающих в редукторах и различных зубчатых механизмах. Целью изобретения является расширение технологических возможностей путем обеспечения определения переходной характеристики испытуемой передачи. При вращении привода 1 валы 4, 5 испытуемой передачи 6 свободно вращаются. На выходе регулятора при отключенном положении коммутатора 14 устанавливают напряжение, равное 15% от уровня, соответствующего полной (номинальной ) испытуемой нагрузке испытуемой передачи 6. Затем включают коммутатор 14 и скачкообразно подают на обмотку 3 возбуждения электротормоза 2 установленное напряжение. Контролируют регистрирующим устройством 9 показания с датчиков 7 и 8 момента и источника постоянного тока, характеризующего переходные процессы, т.е. переходные характеристики электротормоза 2 и динамической системы, состоящей из последовательного соединения электротормоза и испытуемой передачи. Затем по ...

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28-02-1992 дата публикации

Нагружающее устройство

Номер: SU1716363A1
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Изобретение относится к машиностроению , а именно к испытательной технике, и может быть использовано для создания двусторонней осевой нагрузки. Целью изобретения является уменьшение габаритов и веса. При работе нагружающего устройства вращение от привода 9 передается генератору 5 волн и гибкому колесу 4 волновой зубчатой передачи, а затем винту 10 передачи винт-гайка. Поступательное перемещение гайки 11 относительно крышки 1 приводит к изменению относительного расстояния между вилками 16 и 17 и созданию нагрузки.1 ил.

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01-01-1959 дата публикации

Стенд для испытания зубчатых передач

Номер: SU118640A1
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30-06-1991 дата публикации

"Стенд для испытания ведущих мостов транспортных средств "КиАРЗ-613"

Номер: SU1659762A1
Принадлежит:

Изобретение относится к транспортному машиностроению и может быть использовано при ресурсных испытаниях ведущих мостов транспортных средств. Цель изобретения - повышение безопасности испытаний . Испытываемый ведущий мост 6 устанавливается на силовые опоры 12 и закрепляется зажимными механизмами 13. Входной вал моста 6 соединяется подвижной муфтой с приводным электродвигателем 3, а полуоси 11 - с нагружателем. На основании 1 закреплены центральный неподвижный защитный кожух 22, охватывающий электродвигатель 3, и два боковых неподвижных защитных кожуха 23, охватывающие боковые опоры и технологические передачи. Для повышения безопасности испытаний стенд снабжен подвижными зажимными кожухами 24 и 25, охватывающими подвижную муфту, фланец входного вала испытываемого ведущего моста 6, выдвижные валы с муфтами и тормозные барабаны. 2 з.п. ф-лы, 6 ил.

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15-09-1991 дата публикации

Система управления стендом для испытания агрегатов трансмиссии транспортных средств

Номер: SU1677558A1
Принадлежит:

Изобретение относится к транспортному машиностроению. Цель изобретения - расширение функциональных возможностей . Система содержит приводной двигатель 1, оборудованный регулятором 2 скорости и кинематически соединенный с входным валом испытываемого агрегата 3, тормоз 4, кинематически соединенный с выходным валом агрегата 3, датчик 8 тормозного момента, датчик 5 угловой скорости , исполнительный привод 6 регулятора 2, два тиристорных преобразователя 7 и 11, три блока 9,13 и 15 сравнения, два сумматора 12 и 16 и задающий блок 10. Изобретение позволяет обеспечить измерение тормозного момента и изменение сопротивления тормоза со стабилизацией частоты вращения на необходимом уровне во время перехода тормозного момента через регулируемую величину. 1 ил. «н Ё Os V| XI сл СП 00 5Ш ...

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07-04-1991 дата публикации

Стенд для гидравлических испытаний изделий

Номер: SU1640570A1
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Изобретение относится к оборудованию для гидравлических испытаний изделий, в частности передаточных механизмов. Цель изобретения - расширение функциональных возможностей стенда и приближение условий испытаний к эксплуатационным. Стенд содержит напорную магистраль 1 циркуляционного контура 2 с баком 3 подогрева рабочей жидкости, насосом 4 перекачки жидкости в изделие 5, вентилями 6-8, фильтром 9 и манометром 10. Дополнительный контур содержит заборную 11 и напорную 12 магистрали, дополнительный насос 13, вентиль 14, соединяющий,эаборную 11 и напорную 12 магистрали, вентиль 15 соединения напорных магистралей 1 и 12 и магистраль 16с вентилем 17 от магистрали 12 к баку 3 подогрева рабочей жидкости. Стенд снабжен приводом 20 вращения изделия 5, содержащим электродвигатель 21, редуктор 22 и карданный вал 23. Насос 4 использует- ся для подачи жидкости из бака 3 в изделие 5 при заполнении и циркуляции. Дополнительный насос 13 используется для циркуляции жидкости с забором ее через устройство 19 ...

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07-04-1991 дата публикации

Гидравлический объемный привод

Номер: SU1640489A1
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Изобретение может быть использовано для приводов устройств и агрегатов. Цель изобретения - расширение технологических возможностей за счет обеспечения передачи движения на потребители разной мощности. В приводе установлено два гидромотора 2 и 5 разной мощности, которые работают в режиме прямого вращения одновременно от одного гидронасоса 1, имея в своих гидролиниях нагнетания разное рабочее давление. В режиме реверса гидромотор 5 предохраняется от вращения обратным клапаном 10. Дренаж с гидромотора 5 возвращается обратно в систему, что облегчает условия работы гидронасоса 1. 1 ил.

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30-04-1991 дата публикации

Стенд для испытания клиноременных передач

Номер: SU1645869A1
Принадлежит:

Изобретение относится к испытательной технике и может быть использовано для исследования динамических характеристик клиноременных передач. Цель изобретения - расширение эксплуатационных возможностей за счет определения в режимах статического нагружения и свободных колебаний крутильной жесткости и дис- сипативных потерь. При отключенной электромагнитной муфте 13 и освобожденном барабане 22 тормоза 21 вращением гайки 25 производят натяжение клиновых ремней 6. Затем барабан 22 затормаживают и включают электромагнитную муфту 13, обеспечивая жесткое соединение валов 4 и 16. Нагружение передачи осуществляют вращением рукоятки 15червячного редуктора 14. При этом снимают показания измерителя 17 крутящего момента, датчика 12 угла поворота вала 4 и динамометра 26. По результатам этих измерений определяют величину крутильной жесткости передачи. После нагружения передачи отключают электромагнитную муфту 13, что приводит вал 4 и связанные с ним шкив 7, сменные маховые массы 11, муфту 9 и ротор двигателя ...

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07-03-1987 дата публикации

Стенд для испытания редукторов с коаксиальными валами

Номер: SU1295257A1
Принадлежит:

Изобретение относится к машино- с гроению, а именно к испытательной технике, и может быть использовано при испытаниях по схеме замкнутого контура многопоточных редукторов высокой мощности с коаксиальными валами , используемых, например, в барабанньк и роликотарельчатых мельницах. Целью изобретения является снижение энергоемкости путем уменьшения скорости проскальзьшания фрикционных поверхностей трений нагружателя и, следовательно, потерь на трение за счет приближения к единице общего передаточного отношения стенда при испытании редукторов с разными передаточными отношениями. Стенд содержит приводной двигатель 1, миогопоточный фрикционный нагружатель 2 и связывающий последний 1 с испытуемым редуктором 3 соединительный механизм 4 подбором передаточного отношения его центральных колес 13 и 14 с внешними зубьями, двухвенцового сателлита 16 и центрального колеса 10 с внутренни- ми зубьями. С учетом передаточного отношения испытуемого редуктора 3 обеспечивается необходимая величина проскальзывания ...

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03-11-1972 дата публикации

Стенд для обкатки и испытаний редукторов

Номер: SU358637A1
Принадлежит:

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28-02-1985 дата публикации

Устройство для вибродиагностики механизмов

Номер: SU1142747A1
Принадлежит:

УСТРОЙСТВО ДЛЯ ВИБРОДИАГНОСТИКИ МЕХАНИЗМОВ, содержащее виброизмеритель1№ш преобразователь, подключенный к нему через согласующий усилитель фильтр нижних частот, подключенную к выходу последнего цепь из последовательно соединенных гребенчатого фильтра, анализатора спектра и интегратора и индикатор, о т л ичающееся тем, что, с целью li )вьпиения точности определения дефектных узлов, оно снабжено подключенной к выходу фильтра нижних частот цепью из последовательно соединенных заграждающего синхронного фильтра, второго анализатора спектра, второго интегратора и делителя сигналов, тахометром, связываемым с контроли-. руемым механизмом, подключенным к тахометру синтезатором эталонного сигнала , выход синтезатора эталонного сигнала соединен с управляющими вхо-. дами гребенчатого и заграждающего (Л синхронного фильтров, выход первого интегратора соединен с вторым входом делителя сигналов, а индикатор подключен к выходу делителя сигналов. 4 Jib ...

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30-12-1987 дата публикации

Нагружатель для испытания передач винт-гайка

Номер: SU1362994A1
Принадлежит:

Изобретение относится к машиностроению , а именно к испытательной технике и может быть использовано в стендах для проведения экспериментальных исследований передач винт - гайка в лабораторных и производственных условиях. Целью изобретения является расширение технологических возможностей нагружателя путем обеспечения изменения по требуемому закону осевой нагрузки, прикладывае- мой к испытуемым передачам. Изменение осевого усилия в процессе испытаний обеспечивается включением привода 25, который вращает ходовой вал 26 некруглого профиля и шестерню , зацепленную -с центральным зубчатым колесом 22. При этом болты 15, своими зубчатыми головками входящие в зацепление с центральным колесом 22, поворачиваются относительно свя- занньпс с планшайбой 17 гаек 16, и затяжка пружин 18 увеличивается или уменьшается .в зависимости от направления вращения привода 25. 3 ил. (Л с: 25 / ...

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22-03-2012 дата публикации

Method for activating a unit of a transmission

Номер: US20120072082A1
Принадлежит: ZF FRIEDRICHSHAFEN AG

A method of actuating an assembly of a transmission, with which are associated a plurality of actuators with whose help the assembly can in principle be actuated, such that out of the actuators available in principle for actuation, a control unit selects at least one actuator for the actual actuation and activates the selected actuator with an output signal in such manner that a status parameter of the actuated assembly corresponds to or follows a control-side nominal value, such that out of the actuators available in principle for actuating the assembly, the control unit selects at least one actuator for the actual actuation of the assembly in such manner that, for all the actuators available in principle for actuating the assembly over the operating life of the transmission, the extent of their utilization is approximately uniform.

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29-03-2012 дата публикации

Transmission sensing and measurement system

Номер: US20120078537A1
Принадлежит: Schaeffler Technologies AG and Co KG

A transmission sensing and measurement system. The system provides real-time feedback of various transmission operating characteristics which enables immediate synchronized shift calibration in response to vehicle operating conditions. The system can be applied to various transmission components and positions, such as bearing, shafts, and differentials. The system is arranged in a transmission assembly. By way of a method for measuring operating characteristics of the transmission where data is collected by a sensor and transmitted, optimal operating characteristics of the transmission can be calculated.

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10-05-2012 дата публикации

Cvt control apparatus

Номер: US20120116637A1
Автор: Hirohiko Totsuka
Принадлежит: Honda Motor Co Ltd

In an apparatus for controlling a belt type CVT connected to an engine (prime mover) mounted on a vehicle through a forward clutch to change power of the engine in speed and transmit the power to a driven wheel of the vehicle, it is configured to determine whether it is in a predetermined operating condition where an operator is likely to apply a panic brake or the like, set a first value as a friction coefficient μ of the clutch to calculate and control a desired supply hydraulic pressure based on the first value when the determination result is negative, and set a second value greater than the first value to calculate and control the desired supply hydraulic pressure based on the second value when the determination result is affirmative.

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24-05-2012 дата публикации

Method for early detection of damage in a motor vehicle transmission

Номер: US20120130607A1
Автор: Hubert Koenig, Joerg Kurth
Принадлежит: ZF FRIEDRICHSHAFEN AG

A method of early recognition of damage in a motor vehicle transmission which comprises at least one acceleration sensor, with which mechanical vibrations in the motor vehicle transmission are detected and converted into an electrical signal. The electrical signal is then digitalized and thereafter carrying our a comparison with a comparison parameter. The mechanical vibrations are detected at defined operating points of the motor vehicle transmission and, from the digitalized electrical signal acceleration amplitudes, are determined over a time interval. A count is taken of conditions in which the acceleration amplitudes exceed the comparison parameter and, with reference to the number of such conditions, a calculated probability of damage in the motor vehicle transmission is determined. A motor vehicle transmission whose damage can be determined by the method, and a computer program product for carrying out the individual process steps are also proposed.

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24-05-2012 дата публикации

Real-time detection system and the method thereof

Номер: US20120130682A1
Автор: Fuh-Yu Chang, Jia Wang

The invention discloses a real-time detection system for detecting the real-time machining by a rotating machine or rotating quality of a rotating machine. The real-time detection system of the invention comprises a signal capture module, a preprocessor, a processor and a comparison module. The signal capture module is used to capture a time-sequence signal of the rotating machine. The preprocessor is coupled to the signal capture module for receiving the time-sequence signal and generating a stationary time-sequence signal by a Fourier Transform. The processor is coupled to the preprocessor for receiving the stationary time-sequence signal and calculating a plurality of entropy of the stationary time-sequence signal by a predetermined way. The comparison module with an entropy table or a feature judgment mechanism of the entropy variation is coupled to the processor for receiving the plurality of entropy and comparing the plurality of entropy according to the entropy table or the feature judgment of the entropy variation and generating a quality signal.

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31-05-2012 дата публикации

Shift-By-Wire Default-To-Park Functional Verification

Номер: US20120131993A1
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method for testing a transmission gear shift device includes using an electric machine and a primary mechanism to place the device and a secondary mechanism, latched to the primary mechanism, in a park position, using a motor to delatch the secondary mechanism from the primary mechanism, using the electric machine to absorb energy released by a spring when delatching, and using the electric machine to relatch the secondary mechanism to the primary mechanism.

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28-06-2012 дата публикации

Wheel Slip Simulation Systems And Methods

Номер: US20120166154A1
Принадлежит: Horiba Instruments Inc

A dynamometer may be configured to simulate the rotating inertial characteristics of a wheel-tire assembly slipping relative to a road surface and having rotating inertial characteristics different than the rotating inertial characteristics of the wheel-tire assembly being simulated.

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05-07-2012 дата публикации

Clutch temperature estimation for a mobile machine

Номер: US20120173103A1
Принадлежит: Caterpillar Inc

A mobile machine includes a propulsion system. The propulsion system may include a prime mover, a traction device, and a clutch operable to transmit power produced by the prime mover to the traction device. The propulsion system may also include propulsion-system controls operable to control the clutch. The propulsion-system controls may include at least one information processor configured to estimate a temperature of the clutch based at least in part on an estimated slippage of the clutch and a fluid temperature.

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06-09-2012 дата публикации

Belt Test Apparatus

Номер: US20120222497A1
Принадлежит: Gates Corp

A flexible member test apparatus comprising a driver member having a first diameter and a second diameter, the first diameter is not equal to the second diameter, a first driven member coupled by a first flexible member to the driver member through contact of the first flexible member with a first diameter surface, a second driven member coupled by a second flexible member to the driver member through contact of the second flexible member with a second diameter surface, the first driven member rotationally coupled to a magnetic particle clutch, and the second driven member rotationally coupled to the magnetic particle clutch.

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13-09-2012 дата публикации

Clutch run-in by slip control

Номер: US20120232767A1
Принадлежит: Schaeffler Technologies AG and Co KG

A method for operating a clutch includes operating the clutch with increased slip during a green phase and operating the clutch with normal slip during a post-green phase. In some example embodiments, increased slip consists of slip speeds greater than 40 revolutions per minute. In an example embodiment, increased slip consists of a slip speed of approximately 50 revolutions per minute.

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25-10-2012 дата публикации

Rotor For Torque Sensor

Номер: US20120266695A1
Автор: Changhwan Lee
Принадлежит: LG Innotek Co Ltd

Disclosed is a rotor for a torque sensor configured to improve a mechanical coupling force with respect to a jig in a process of adjusting a torque center, thus enabling a fine adjustment, the rotor including a rotor body having a sleeve coupled to a rotating shaft and a yoke protruding from an outer circumference of the sleeve, a ring-shaped magnet coupled to an outer circumference of the yoke, and an anti-slip structure formed on the rotor body and partially coming into contact with a jig during a rotating process for adjusting a torque center, thus inhibiting slipping between the rotor body and the jig when a rotating force is transmitted, so that slipping between the jig and the rotor body is inhibited to enable precise transmission of the rotating force whereby accuracy is improved during fine adjustment of the torque center.

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01-11-2012 дата публикации

Direct clutch control for dual clutch transmissions

Номер: US20120277964A1
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A control system for controlling clutches of a dual clutch transmission includes an internal model based force control algorithm that converts a desired clutch force to a pressure control signal, a pressure control valve that receives the pressure control signal, a hydraulic actuator to which the pressure control valve applies a pressure related to the pressure control signal, and a clutch assembly with a spring lever and a plurality of clutch plates. The hydraulic actuator applies a desired force corresponding to the pressure control signal to a distal end of the spring lever such that the desired force to the distal end of the spring lever imparts an actual clutch force to the clutch plates.

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06-12-2012 дата публикации

Conveyor belt wear detection apparatus

Номер: US20120306481A1
Принадлежит: Bridgestone Corp

A rubber magnet ( 3 ) includes a plate-like diagonal portion ( 21 ) and a plate-like parallel portion ( 22 ) which are both magnetized in a thickness direction, the diagonal portion ( 21 ) extending in a conveyor belt width direction while linearly extending, in section in a conveyor belt length direction, from an outer side end ( 3 b ), which is closer to the front-side surface ( 2 a ), to an inner side end ( 3 a ), which is away from the front-side surface ( 2 a ), while being at an angle to the front-side surface ( 2 a ), the parallel portion ( 22 ) being formed continuously from the inner side end ( 3 a ) of the diagonal portion, so as to be arranged parallel to the front-side surface ( 2 a ).

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13-12-2012 дата публикации

Method and device for leak testing in an automated electrohydraulic clutch system in a motor vehicle

Номер: US20120312080A1
Принадлежит: ROBERT BOSCH GMBH

In a method for leak testing in an automated electrohydraulic clutch system in a motor vehicle, in which an electromechanical actuator controls the clutch travel of a clutch via a hydraulic piping system, in order that a defective system is detected reliably and rapidly, the leak in the clutch system is detected using a pressure measurement in the electromechanical actuator and compared to a characteristic clutch curve.

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31-01-2013 дата публикации

Method for controlling a dual clutch

Номер: US20130025996A1
Принадлежит: Schaeffler Technologies AG and Co KG

The invention relates to a method for controlling a dual clutch and a dual clutch housing two friction clutches which are each actuated independently of one another by means of a hydrostatic actuator. The hydrostatic actuator actuates the clutch as a function of a control signal of a control unit by means of a pressure which is applied to the actuation element and corresponds to a position of an actuation element of the friction clutch along an activation path. In order to sense a change in the position of the actuation element on one friction clutch which is brought about by the pressure on the actuation element of the other friction clutch, it is proposed to determine a correction variation for the purpose of compensating the changed position by means of a variable which represents the pressure of the disruptive hydrostatic actuator.

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14-03-2013 дата публикации

METHOD FOR ADAPTING A CONTACT POINT OF A CLUTCH IN A DRIVETRAIN OF A MOTOR VEHICLE

Номер: US20130066530A1
Автор: Eich Juergen, Holzer Lukas
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A method for adapting a contact point of a clutch in a drivetrain of a motor vehicle, wherein the clutch is moved by an actuator and the influence of the movement of the clutch on a rotating electric motor is evaluated. A method that is simple and quick to carry out, a clutch torque and/or an actuator path close to the contact point is obtained from a characteristic curve of the clutch representing the relationship of an actuator path to a clutch torque and is set at the clutch. Subsequently the associated actuator path and/or the clutch torque is measured from the clutch influenced by the actively operated electric motor, where the clutch torque read from the characteristic curve and the actuator path measured at the clutch and/or the actuator path obtained from the characteristic curve and the measured clutch torque form the current contact point position of the clutch. 1. A method for adapting a contact point in a drivetrain of a motor vehicle , wherein a clutch is moved by an actuator and an influence of the movement of said clutch on a rotating electric motor is evaluated , comprising the steps of:(a) depicting a relationship of an actuator path to a clutch torque from a characteristic curve of said clutch;(b) obtaining said clutch torque, said actuator path, or said clutch and said actuator path close to a contact point Which is set at said clutch; and,(c) measuring a corresponding actuator path from said clutch influenced by said rotating electric motor.2. The method recited in claim 1 , wherein a constant speed is set at said electric motor claim 1 , and said actuator changes said clutch from a disengaged position in a direction of closure until a torque of said electric motor exhibits a value that corresponds approximately to said clutch torque obtained from said characteristic curve claim 1 , at which said actuator path traversed by the actuator is measured.3. The method recited in claim 1 , wherein a measured actuator path in the characteristic curve ...

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04-04-2013 дата публикации

DIGITAL DEVICE AND METHOD FOR MEASURING THE AXIAL LOAD OF A TORQUE-SHEAR-TYPE HIGH STRENGTH BOLT

Номер: US20130085686A1
Принадлежит: KOREA ELECTRIC POWER CORPORATION

The present invention relates to a digital device and a method for measuring the axial load of a torque-shear-type high strength bolt. One embodiment of the digital device of the present invention includes: a main body portion which is connected to an electromotive wrench fastening a torque-shear-type high strength bolt; a measurement portion disposed at the main body portion to measure the axial load of the torque-shear-type high strength bolt using a quantity of the electricity from the electromotive wrench; a power supply portion disposed at the main body portion and including a power lead-in portion for receiving an external power supply and a power lead-out portion for supplying power to the electromotive wrench; and a display portion displaying the axial force value measured by the measurement portion. 1. A digital device for measuring an axial load of a torque-shear-type high strength bolt , comprising:{'b': '100', 'a main body connected to an electromotive wrench fastening a torque-shear-type high strength bolt;'}{'b': 200', '100, 'a measuring unit disposed in the main body and measuring an axial load of the torque-shear-type high strength bolt based on a current amount of the electromotive wrench;'}{'b': 300', '100', '320', '340, 'a power supply formed in the main body and comprising a power lead-in portion for receiving power from outside and a power lead-out portion for supplying the power to the electromotive wrench; and'}{'b': 400', '200, 'a display unit displaying a measuring result of the axial load of the torque-shear-type high strength bolt measured by the measuring unit .'}2. The digital device according to claim 1 , further comprising:{'b': 120', '100', '200, 'an output unit formed in the main body and outputting data measured by the measuring unit to the outside.'}3. The digital device according to claim 1 , further comprising:{'b': 140', '100', '200, 'a connector formed in the main body and connected to a separate terminal such that the ...

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25-04-2013 дата публикации

COASTING CONTROL DEVICE

Номер: US20130103275A1
Принадлежит:

A coasting control device for reducing uneasiness experienced by a driver when pressing a clutch pedal during coasting control. The device includes a clutch control unit that, when the clutch pedal is pressed during coasting control, controls an actuator to cause an amount of hydraulic oil that depends on the amount of depression of the clutch pedal to be ejected from a clutch-free operating cylinder. 1. A coasting control device configured to be installed in a vehicle including a clutch system that is supplied with hydraulic oil in response to depression of a clutch pedal or control by an actuator and disengages a clutch according to an amount of the supplied hydraulic oil and , when an engine is not doing any work for the outside the engine while the vehicle is moving , perform coasting control to cause the actuator to disengage the clutch and decrease an engine RPM to an idle RPM , the coasting control device comprising:a clutch control unit performing a control to cause an amount of the supplied hydraulic oil that depends on an amount of depression of the clutch pedal to be ejected from the actuator when the clutch pedal is pressed during coasting control.2. The coasting control device according to claim 1 , comprising a clutch pedal depression amount sensor measuring the amount of depression of the clutch pedal claim 1 ,wherein the clutch system comprises:a clutch-free operating cylinder including a primary piston and a secondary piston arranged in series; andthe actuator including a hydraulic pump supplying hydraulic oil to an intermediate cylinder chamber provided between the primary piston and the secondary piston and a solenoid valve controlling the amount of hydraulic oil ejected from the intermediate cylinder chamber; andthe clutch control unit determines the amount of hydraulic oil to be ejected from the intermediate cylinder chamber according to the amount of depression of the clutch pedal measured by the clutch pedal depression amount sensor and ...

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09-05-2013 дата публикации

Apparatus to measure blade vibration in a turbine engine based on series of images exposed by an imager in response to a sequence of illumination bursts

Номер: US20130115050A1
Автор: Michael Twerdochlib
Принадлежит: Siemens Energy Inc

Apparatus ( 12 ) to measure blade vibration in a gas turbine engine ( 8 ). An illumination source ( 20 ) generates a sequence of illumination bursts in a field of view capturing a passing rotating blade ( 10 ) of the gas turbine engine. An imager ( 22 ) generates image data including a series of images capturing views of the passing rotating blade. The images are exposed in response to respective illumination bursts. A controller ( 30 ) is configured to process the series of images to identify one or more vibration modes of the rotating blade.

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09-05-2013 дата публикации

CLUTCH PARAMETERS

Номер: US20130116902A1
Автор: Hodrus Erhard
Принадлежит: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG

A method of determining clutch parameters at the initial start of operation of a friction clutch in a motor vehicle comprising the steps of: in a first phase, moving the clutch from an open state into a closed state and into an open state again at a predetermined constant slip of the clutch and determining and storing the position of the clutch during the movement when predetermined clutch torque thresholds are reached; in a second phase, in a first step, determining a touch point, a position hysteresis, and a torque hysteresis from the determined positions; determining a preliminary friction coefficient; determining preliminary form factors; determining a final friction coefficient; and determining final form factors. 1. A method of determining clutch parameters at the initial start of operation of a friction clutch in a motor vehicle comprising the steps of:in a first phase, moving the clutch from an open state into a closed state and into an open state again at a predetermined constant slip of the clutch and determining and storing the position of the clutch during the movement when predetermined clutch torque thresholds are reached;in a second phase, in a first step, determining a touch point, a position hysteresis, and a torque hysteresis from the determined positions;determining a preliminary friction coefficient;determining preliminary form factors;determining a final friction coefficient; and,determining final form factors.2. The method as set forth in claim 1 , wherein the clutch torque thresholds are equidistantly distributed across the clutch torque range provided by the clutch.3. The method as set forth in claim 1 , wherein the touch point is determined from a mean value of end points of a hysteresis width for the lowest clutch torque threshold.4. The method as set forth in claim 1 , wherein the position hysteresis is determined from the mean value of a number of hysteresis widths for low clutch torque thresholds.5. The method as set forth in claim 1 , ...

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09-05-2013 дата публикации

SYSTEM AND METHOD FOR DETECTING FAULT CONDITIONS IN A DRIVETRAIN USING TORQUE OSCILLATION DATA

Номер: US20130116937A1
Принадлежит:

In one embodiment, a method is provided for detecting a fault condition in a drivetrain, including the steps of monitoring torque oscillations at a location along a drivetrain, and detecting at least one fault condition associated with a drivetrain component by evaluating torque oscillation data acquired during the monitoring. In another embodiment, a system is provided for detecting a fault condition in a drivetrain including a torque sensor coupled to a drivetrain component and configured to measure torque at a location along the drivetrain and to generate a torque oscillation signal corresponding to the measured torque, and a controller configured to receive the torque oscillation signal and evaluate the torque oscillation signal to identify at least one fault condition associated with the drivetrain component. 1. A method for detecting a fault condition in a drivetrain , comprising:monitoring torque oscillations at a location along a drivetrain; anddetecting at least one fault condition associated with a drivetrain component by evaluating torque oscillation data acquired during the monitoring.2. The method of claim 1 , wherein the torque oscillation data is characterized as a torque waveform having at least one peak amplitude corresponding to the at least one fault condition associated with the drivetrain component.3. The method of claim 1 , further comprising:generating simulated torque data associated with the drivetrain component that simulates dynamic behavior of the drivetrain component; andwherein the detecting comprises comparing the torque oscillation data to the simulated torque data to identify the at least one fault condition associated with the drivetrain component.4. The method of claim 3 , wherein the simulated torque data is generated from a physics-based analytical model that simulates dynamic behavior of the drivetrain.5. The method of claim 3 , wherein the simulated dynamic behavior of the drivetrain component includes:a normal operating ...

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16-05-2013 дата публикации

ENDLESS CONVEYOR DRIVE MONITORING SYSTEM

Номер: US20130123972A1
Автор: Whysall Simon A.
Принадлежит: Baking Acquisition, LLC

A drive load measuring system for a conveyor-type oven is disclosed. According to one embodiment, a drive load measuring system includes: a pair of mounting assemblies that support opposing end portions of a rotating drive shaft of an oven drive unit; and a PLC control unit operatively connected to the mounting assemblies. The mounting assemblies each include a pivot bracket mounted to the body of the oven and a force sensing fastener inserted into the pivot bracket and configured to generate an output signal representative of the load on the force sensing fastener. The PLC control unit can be configured to calculate load values of the force sensing fasteners and to detect rapid changes in the load values that may indicate jam-ups of conveyors driven by the oven drive unit. Alternatively, the PLC control unit can be configured to detect when load values of the force sensing fasteners exceed a threshold value, which may also indicate jam-ups of the conveyors. According to another embodiment, a drive load measuring system includes a pair of in-line torque sensors attached to a rotating drive shaft of an oven drive unit at or near end portions of the drive shaft; and a PLC control unit operatively connected to the mounting assemblies. 1. A monitoring system for monitoring a drive mechanism of an endless conveyor , the monitoring system comprising:a first sensor configured to sense a force applied to a first element of the drive mechanism and to output a first electrical signal reflective of the force; anda programmable control system in communication with the first sensor, wherein the programmable control system is configured to continuously monitor the first electrical signal to detect a change in the force sensed by the first sensor, and wherein the programmable control system is configured to control the motion of the drive mechanism according to the change in the force sensed by the first sensor.2. The monitoring system of claim 1 , wherein the force applied to the ...

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23-05-2013 дата публикации

METHOD FOR DETERMINING A ROTATIONAL SPEED OF A DRIVESHAFT OF AN INTERNAL COMBUSTION ENGINE

Номер: US20130125636A1
Принадлежит: ROBERT BOSCH GMBH

The invention relates to a method for determining a rotational speed (nX) of a driveshaft () of an internal combustion engine () at at least one later point in time (tX), wherein the rotating driveshaft () assumes different rotary positions (PHI , PHI ; PHI , PHI ) at different times (t, t; t, t), wherein from at least two rotary positions (phi, phi; phi, phi) a past average rotary behaviour (m; m; mi) can be determined and from this an average rotational speed (nX) at at least one later point in time (tX) is inferred. 1. A method for determining a rotational speed of a driveshaft of an internal combustion engine , wherein the rotating driveshaft assumes various rotary positions at different points in time , the method comprising:determining a past average rotary behavior from at least two rotary positions, andinferring an average rotational speed from the past average rotary behavior at at least one later point in time.2. The method as claimed in claim 1 , further comprising determining claim 1 , a further past average rotary behavior after the past average rotary behavior has been determined3. The method as claimed in claim 2 , further comprisinginferring an average rotational speed based on the further past average rotary behavior at at least one later point in time.4. The method as claimed in claim 3 , wherein the past average rotary behavior or a plurality of further past average rotary behaviors is or are used to determine an arithmetic mean value of the average rotary behavior.5. The method as claimed in claim 4 , wherein the arithmetic mean value of the average rotary behavior is a moving mean value claim 4 , wherein an older past average rotary behavior is exchanged for a more recent past average rotary behavior for determining a current arithmetic mean value of the average rotary behavior.6. The method as claimed in claim 1 , wherein an alteration component is added to an average rotational speed at a point in time for determining a prognosticated ...

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30-05-2013 дата публикации

POSITION SENSOR

Номер: US20130133411A1
Принадлежит: HONDA MOTOR CO., LTD.

The position sensor includes a shift lever used to select one of five ranges P, R, N, D, and B, fixed contacts corresponding to the ranges P, R, N, D, and B, and movable contacts configured to be electrically connected to the fixed contacts. The fixed contacts include regular fixed contacts, first backup fixed contacts, and second backup fixed contacts. The first and second backup fixed contacts have their lengths in the moving direction of the movable contacts configured to be longer than the length of the regular fixed contact that corresponds to the first and second backup fixed contacts. 1. A position sensor comprising a shift lever manipulated to select one of a plurality of ranges , and a plurality of contacts corresponding to the plurality of ranges , the plurality of contacts including movable contacts and fixed contacts , the movable contact being configured to move in accordance with the manipulation of the shift lever , the fixed contact becoming conductive with the movable contact when the movable contact moves and comes into contact with the fixed contact , the position sensor detecting that the range corresponding to the movable and fixed contacts that have become conductive with each other has been selected by the shift lever , whereinthe plurality of contacts are classified as one or more regular contacts and one or more backup contacts that are different from the regular contacts, the regular contacts corresponding respectively to the plurality of ranges, the backup contacts corresponding respectively to one or more prescribed ranges among the plurality of ranges, andeach of the one or more backup contacts is configured such that the backup contact makes a transition from a non-conductive state to a conductive state before the regular contact corresponding to the same range as the backup contact makes a transition from the non-conductive state to the conductive state, and such that the backup contact makes a transition from the conductive state to ...

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30-05-2013 дата публикации

METHOD OF MANUFACTURING A MOLDED SENSOR SUBASSEMBLY

Номер: US20130133412A1
Принадлежит: ZF FRIEDRICHSHAFEN AG

A method of producing an insert molded sensor assembly having at least one sensor element accommodated on a first side of a circuit board of the sensor assembly. During a first step, a plurality of pins are introduced and penetrate through the circuit board. The circuit board, including the at least one sensor element, is then disposed, during a second step, into a two-part insert mold tool so that the pins are supported on both sides of the circuit board in a direction transverse to a plane defined by the circuit board. A defined spacing distance, between a surface of the sensor element and the insert mold tool, is produced by the pins. During a third step of the method, the insert mold tool is filled with insert molding material, particularly a duroplast. 110-. (canceled)11100134221a. A method () of manufacturing a molded sensor subassembly () having at least one sensor element ( , ) supported on a first side () of a circuit board () of the sensor assembly () , the method comprising the steps of:{'b': 110', '6', '2, 'during a first step (), introducing a plurality of pins () which penetrate through the circuit board ();'}{'b': 210', '2', '3', '4', '6', '10', '6', '2', '7', '8', '6', '10', '6', '3', '4', '10, 'i': a', 'a, 'during a second step (), disposing the circuit board () including the at least one sensor element (, ) and the plurality of pins () in a two-part insert mold tool () so that the pins () are supported on both sides of the circuit board (), in a direction transverse to a plane defined by the circuit board, by face side tool contact surfaces (, ) of the plurality of pins () which engage with the insert mold tool (), and the plurality of pins () define a spacing distance between a surface of the sensor element (, ) and the insert mold tool (); and'}{'b': 310', '10', '14, 'during a third step (), filling the insert mold tool () with insert molding material ().'}121002110276ab. The method () according to claim 11 , further comprising the step of ...

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06-06-2013 дата публикации

Audio processing apparatus, audio processing method and imaging apparatus

Номер: US20130141599A1
Принадлежит: Canon Inc

An audio processing apparatus including: an obtaining unit configured to obtain audio signals; and a processor configured to process the audio signals, wherein if it is not determined that the audio signals contain an abnormal value, the processor calculates a next sample value based on a predetermined number of sample values of the audio signals obtained by the obtaining unit, and wherein if it is determined that the audio signals contain an abnormal value, the processor uses the calculated next sample value so as to calculate a further next sample value.

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20-06-2013 дата публикации

Apparatus for extracting drive characteristic of drive system

Номер: US20130154533A1
Принадлежит: Hyundai Motor Co

Disclosed is an apparatus for extracting a drive characteristic of a drive system. The apparatus includes a drive unit supplying a rotating force to a drive shaft. A force-torque sensor unit is detachably coupled to the drive shaft of the drive unit, and may not rotate when it is coupled to the drive shaft. A load unit is detachably coupled to the drive shaft of the drive unit. A control unit is configured to control drive energy supplied to the drive unit, derive a drive-unit constant by using a relation between the input drive energy and measurement torque when the drive unit is coupled to the force-torque sensor unit, calculate frictional torque using the derived drive-unit constant, the input drive energy, an inertia moment and angular acceleration of the load unit when the drive unit is coupled to the load unit, and derive a frictional coefficient from the frictional torque.

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20-06-2013 дата публикации

Method and device for determination a touch point of a friction clutch

Номер: US20130158825A1
Принадлежит: ZF FRIEDRICHSHAFEN AG

A method of determining a touch-point of a friction clutch of a motor vehicle that is relevant for control purposes such that a current, actual touch-point of the friction clutch is determined adaptively, and such that the current touch-point is modified, with a correction value that depends on the elasticity of the friction clutch, in order to determine the control-relevant touch-point. The control device comprises elements for carrying out the method.

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27-06-2013 дата публикации

Device for measuring the torque, the direction of rotation and the speed of rotation of a shaft of a transmission, in particular an output shaft of an azimuth transmission of a wind power plant

Номер: US20130160568A1
Принадлежит: ROBERT BOSCH GMBH

A device for measuring the torque, the direction of rotation, and the speed of rotation of a shaft of a transmission, in particular an output shaft of an azimuth transmission, includes bands configured to be mounted in a fixed position on an outer circumference of the shaft. The bands are configured to be detected by measuring sensors and allow torsion of the shaft to be measured. Each of the measuring sensors has a Hall effect sensor, and the bands are respectively arranged at two different positions on the outer circumference of the shaft. Each of the bands includes polygonal apertures and/or depressions having webs located between the apertures and/or depressions. The webs are configured to be detected by the measuring sensors. A method includes operating the device to measure the torque, the direction of rotation, and the speed of rotation of the shaft.

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18-07-2013 дата публикации

METHOD FOR IDENTIFYING DAMAGE ON TRANSMISSIONS

Номер: US20130180319A1
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A method for identifying possible damage in a toothed transmission stage having at least one pair of engagement toothed wheels includes measuring with a vibration transducer an oscillation signal corresponding to oscillations produced by a rolling and impact motion when teeth of a pair of the toothed wheels mesh under load during operation of the transmission stage, comparing the oscillation signal with a calibration oscillation signal, determining a torque acting on the transmission stage from a difference between the oscillation signal and the calibration oscillation signal, and evaluating the measured oscillation signal commensurate with the determined torque to identify the possible damage to the transmission stage. 1. A method for identifying possible damage in a toothed transmission stage having at least one pair of engagement toothed wheels , comprising the steps of:measuring with at least one vibration transducer at least one first oscillation signal corresponding to oscillations produced by a rolling and impact motion when teeth of a first of the at least one pair of the toothed wheels mesh under load during operation of the transmission stage,comparing the at least one first oscillation signal with a first calibration oscillation signal,determining a torque acting on the transmission stage from a difference between the at least one first oscillation signal and the first calibration oscillation signal, andevaluating the at least one measured first oscillation signal commensurate with the determined torque to identify the possible damage to the transmission stage.2. The method of claim 1 , further comprising the steps of:measuring at least one second oscillation signal corresponding to engagement of a second pair of toothed wheels,comparing the at least one second oscillation signal with the second calibration oscillation signal, anddetermining the torque acting on the transmission stage from a difference between the at least one first and second oscillation ...

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01-08-2013 дата публикации

Diagnostic Method for a Torsional Damper in a Drive Train of a Vehicle

Номер: US20130197740A1
Принадлежит:

A diagnostic method for a torsional vibration damper in a drive train of a vehicle may include the steps of providing a drive train having a drive unit (e.g., an internal combustion engine) for generating a driving torque, a drive shaft (e.g., a crankshaft) coupled to the drive unit for transmitting the driving torque to an output shaft, and a torsional vibration damper connected to the drive shaft for damping torsional vibrations of the drive shaft, capturing a reference vibration signal of the drive shaft in a reference state, capturing an operating vibration signal of the drive shaft in an operating state deviating from the reference state, and comparing the reference vibration signal to the operating vibration signal. 1. A computer-implemented diagnostic method for a torsional damper in a drive train of a vehicle , comprising: a drive for generating a drive torque,', 'a drive shaft coupled to the drive and configured to transmit the drive torque to an output shaft, and', 'a torsional damper connected to the drive shaft and configured for damping torsional vibrations of the drive shaft,, 'providing a drive train comprisinga processor acquiring a reference vibration signal of the drive shaft in a reference state,the processor acquiring an operating vibration signal of the drive shaft in an operating state that deviates from the reference state, andthe processor comparing the reference vibration signal with the operating vibration signal.2. The method of claim 1 , wherein the vibration signals are the rotational speed signals of the drive shaft.3. The method of claim 1 , comprising claim 1 , before the comparison of the reference vibration signal with the operating vibration signal claim 1 , transforming the vibration signals into a frequency range for extracting the amplitude of at least one engine order of the drive shaft.4. The method claim 3 , comprising comparing the amplitudes of the extracted engine order.5. The method of claim 4 , comprising calculating a ...

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15-08-2013 дата публикации

Method For Determining A Torque And An Industrial Robot

Номер: US20130211739A1
Принадлежит: KUKA ROBOTER GMBH

The invention concerns an industrial robot () and a method to determine a torque having an effect on a limb of the robotic arm (). The robotic arm () has several sequentially arranged limbs (-), of which a first limb () is stored relative to a second limb () of the limbs on an axis of rotation (A), and using a stationary motor () relative to the second limb () and a gearbox () connected to the motor (), is rotatable around the axis of rotation (A). 1. A method for determining a torque having an effect on a limb of a robotic arm , whereby the robotic arm has several sequentially arranged limbs , of which a first limb is supported relative to a second limb of the limbs on an axis of rotation , and by use of a stationary motor relative to the second limb a gearbox then connected to the motor , is rotatable around the axis of rotation , and has the following method steps:{'sub': A', 'B, 'determining the angle of rotation turned toward the driving side (φ) of the motor and the angle of rotation turned to the reducing side (φ) of the gearbox, and'}{'sub': A', 'B, 'determining the torque having an effect on the first member on the basis of the determined driving side and reducing side angles of rotation (φ, φ) of the gearbox and based on a mathematical model of the gearbox, which takes into account in particular the elastic properties of the gearbox.'}2. The method according to claim 1 , in which the gearbox for transmission of the gears has a driving side shaft connected with the motor claim 1 , a reducing side shaft connected at least indirectly with the first limb and has a gearbox unit for a transmission of the gears set up between at least one of the two shafts of the gearbox claim 1 , whereby in particular the driving side angle of rotation (φ) is the angle of rotation of the driving side shaft claim 1 , and the reducing side angle of rotation (φ) is the angle of rotation of the reducing side shaft.3. The method according to claim 1 , having a determination of the ...

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22-08-2013 дата публикации

METHOD AND APPARATUS TO DETERMINE TORQUE IN A POWERTRAIN SYSTEM

Номер: US20130218426A1
Принадлежит:

A method for monitoring torque in a gear train includes coincidentally determining angles of rotation of first and second rotationally coupled members of the gear train. Each of the members employs a respective rotational position sensor. Each of said angles of rotation are determined based upon times corresponding to a last signal pulse, a next-to-last signal pulse, and a total quantity of signal pulses generated by the respective rotational position sensor during a current sampling interval. A twist angle corresponding to a difference between the angles of rotation of the first and second rotationally coupled members of the gear train is determined, and torque corresponding to the twist angle is calculated. 1. Method for monitoring torque in a gear train , comprising:coincidentally determining angles of rotation of first and second rotationally coupled members of the gear train, each of said members employing a respective rotational position sensor, including determining each of said angles of rotation based upon times corresponding to a last signal pulse, a next-to-last signal pulse, and a total quantity of signal pulses generated by the respective rotational position sensor during a current sampling interval;determining a twist angle corresponding to a difference between the angles of rotation of the first and second rotationally coupled members of the gear train; andcalculating torque corresponding to the twist angle.5. The method of claim 4 , wherein the reference time T_ref is arbitrarily chosen and comprises an arbitrary phase shift occurring between the last signal pulse during the current sampling interval and the next-to-last signal pulse during the current sampling interval.6. The method of claim 1 , wherein calculating the torque corresponding to the twist angle comprises calculating a driveline torque based upon the twist angle and an equivalent stiffness coefficient for the driveline determined between the rotational position sensors of the first and ...

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26-09-2013 дата публикации

Health monitoring method and system for drives

Номер: US20130253850A1
Автор: Antti Sakari Aulanko
Принадлежит: ABB Oy

In an exemplary method for condition monitoring of electric and mechanical drives, measurement data in a condition monitoring system of electric drives is collected at least from one electric drive. The measurement data is pre-treated, a frequency spectrum is created from the pre-treated measurement data with the Fast Fourier Transform transformation, and a detected vibration frequency and vibration amplitude are recorded from the frequency spectrum. The detected vibration frequency and vibration amplitude is compared to at least one detected vibration frequency and vibration amplitude successive in time. In the comparison, detrimental changes in vibration frequency and vibration amplitude are defined, and the detrimental changes are indicated.

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26-09-2013 дата публикации

METHOD OF CALIBRATING MULTI COMPONENT FORCE DETECTOR PROVIDED IN ROLLING RESISTANCE TESTING MACHINE

Номер: US20130253852A1

A crosstalk correction coefficient of a multi component force detector provided in a rolling resistance testing machine is calibrated. A method of calibrating a multi component force detector provided in a rolling resistance testing machine including a spindle shaft to which a tire is attached, a running drum with a simulation road surface on which the tire is pressed, and a rotation torque meter provided in a rotation shaft of the running drum; in which, in performing a process of calculating a force acting on the tire from a measurement value of the multi component force detector by using a crosstalk correction coefficient that corrects an influence of crosstalk occurring in the multi component force detector, the crosstalk correction coefficient is calibrated by using a rolling test data including a rotation torque measured by the rotation torque meter and a force measured by the multi component force detector. 1. A method of calibrating a multi component force detector provided in a rolling resistance testing machine including a spindle shaft to which a tire is attached , a running drum with a simulation road surface on which the tire is pressed , and a rotation torque meter provided in a rotation shaft of the running drum ,wherein, in a process of calculating a force acting on the tire from a measurement value of the multi component force detector using a crosstalk correction coefficient for correcting an influence of crosstalk occurring in the multi component force detector, the crosstalk correction coefficient is calibrated by using a rolling test data including a rotation torque measured by the rotation torque meter and a force measured by the multi component force detector.2. The method of calibrating a multi component force detector provided in a rolling resistance testing machine according to claim 1 ,wherein the multi component force detector is attached to the spindle shaft, andwherein when a tangential direction of the running drum is set as an x axis, ...

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24-10-2013 дата публикации

CONVEYING SYSTEM HAVING A SPARK-DETECTING DEVICE

Номер: US20130277177A1
Автор: Kuesel Bernd
Принадлежит:

A conveying system includes a conveyor belt having a carrying-side cover plate for accommodating goods to be conveyed and a running-side cover plate free of goods. Each of the cover plates is made of polymer material having elastic characteristics. A drum engages the conveyor belt at one of the side cover plates whereat a spark can develop during operation of the conveying system. A device detects the spark and corresponds with an evaluation unit. The evaluation unit is configured to transmit a signal to a fire-extinguishing unit upon detection of the spark. 1. A conveying system comprising:a conveyor belt having a carrying-side cover plate for accommodating goods to be conveyed and a running-side cover plate free of said goods;each of said cover plates being made of polymer material having elastic characteristics;a drum for engaging said conveyor belt at one of said side cover plates whereat a spark can develop during operation of the conveying system; and,a device for detecting said spark.2. The conveying system of claim 1 , wherein said device includes an infrared transmitter and a diode for detecting said spark.3. The conveying system of claim 1 , wherein said conveyor belt has an upper portion ahead of said drum and a lower portion coming off of said drum as said conveyor belt moves over said drum; and claim 1 , said device is mounted in the region of said lower portion of said conveyor belt.4. The conveying system of claim 3 , wherein said drum is a discharge drum for discharging said goods from said conveyor belt; said drum also is one of a driving drum for driving said conveyor belt and a reversing drum for changing the direction of movement of said conveyor belt; and claim 3 , said device is mounted in the immediate vicinity of said discharge drum.5. The conveying system of claim 1 , wherein said conveyor belt has an upper portion ahead of said drum and a lower portion coming off of said drum as said conveyor belt moves over said drum; and claim 1 , said ...

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24-10-2013 дата публикации

Adaptable thermal management of a vehicle dual-clutch transmission

Номер: US20130282246A1
Автор: Joseph B. Burtch
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method of managing clutch thermal loads in a multi-speed dual-clutch transmission (DCT) paired with an engine in a vehicle includes assessing whether the vehicle is being accelerated and ascertaining whether a position of a vehicle accelerator during the acceleration is maintained within a predetermined range. The method also includes identifying a DCT clutch that is being slipped during the acceleration, determining an amount of time remaining until the clutch stops slipping, and comparing a first preset time span indicative of the time remaining until the clutch reaches a threshold temperature with the amount of time remaining until the clutch stops slipping. The method additionally includes setting a time delay for activating an indicator if the amount of time remaining until the clutchs stops slipping is greater than the first preset time span. Furthermore, the method includes activating the indicator after the time delay.

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24-10-2013 дата публикации

Adaptable thermal management of a vehicle dual-clutch transmission

Номер: US20130282247A1
Автор: Joseph B. Burtch
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method of managing clutch thermal loads in a multi-speed dual-clutch transmission (DCT) that is paired with an engine in a vehicle. The method includes assessing whether the vehicle is being accelerated and identifying a DCT clutch slipping during the acceleration. The method also includes determining vehicle parameters, determining an amount of time remaining for the clutch to stop slipping using the determined vehicle parameters, and determining an amount of time remaining until the clutch reaches a threshold temperature. The method additionally includes comparing the determined amount of time remaining for the clutch to stop slipping with the determined amount of time remaining until the clutch reaches the threshold temperature. Furthermore, the method includes activating an indicator if the determined amount of time remaining until the clutch reaches the threshold temperature is less than the determined amount of time remaining for the clutch to stop slipping.

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24-10-2013 дата публикации

METHOD FOR THE LOAD-FREE OPENING OF A SEPARATING CLUTCH

Номер: US20130282248A1
Автор: Merkel Tino, Peter Markus
Принадлежит:

A method is provided for the load-free opening of a separating clutch. The method includes the following steps: receiving a signal for disengaging the clutch; applying a negative torque at the separating clutch using a drive machine; applying a positive, predefined torque at the separating clutch using the drive machine; and opening the separating clutch as soon as the amount of the torque applied at the separating clutch lies within predefined limit values. In other words, a torque in the known range of the system is set via a drive-side deceleration. Then, a drive-side acceleration takes place, so that the torque is increased on the drive side, starting from the known range of the system, until it generally matches the torque on the output side. This enables a load-free opening of the clutch. 19-. (canceled)10. A method for the load-free opening of a separating clutch , comprising:receiving a signal for disengaging the separating clutch;applying a negative torque at the separating clutch by a drive machine, the negative torque being smaller than a torque of an output side;applying a positive, predefined torque at the separating clutch by the drive machine, the positive torque being greater than the torque of the output side; andopening the separating clutch as soon as an amount of the torque applied at the separating clutch lies within predefined limit values.11. The method as recited in claim 10 , wherein the negative torque is set by free running of the drive machine.12. The method as recited in claim 10 , wherein the negative torque is set by an active short-circuit of the drive machine.13. The method as recited in claim 10 , wherein the positive predefined torque is applied following a predefined time interval after applying the negative torque.14. The method as recited in claim 10 , further comprising:detecting a rotational speed of the drive machine;applying the negative torque by an active short-circuit of the drive machine in the event that the detected ...

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24-10-2013 дата публикации

User Interface System And Method For Diagnosing A Rotating Machine Condition Not Based Upon Prior Measurement History

Номер: US20130282335A1
Принадлежит: Fluke Corp

A vibration data collection and rotating machinery fault diagnostic instrument includes a machine setup engine, a measurement engine, a diagnostic engine, a measurement user interface module, a machine setup user interface module, and a diagnostic user interface module. The machine setup engine requests and receives parameters about the machinery through the machine setup user interface module. The measurement engine requests and receives sensor placement locations through the measurement user interface module and keeps track of locations that have been measured and locations that still need to be measured. The diagnostic engine diagnoses machinery faults and presents the information to the user through the diagnostic user interface module using an intuitive graphical severity scale.

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31-10-2013 дата публикации

GEARBOX TEST RIG

Номер: US20130283899A1
Автор: PLOWMAN Alistair
Принадлежит:

A gearbox test rig is provided for testing first and/or second gearboxes having power ratings of 1 MW or more. The gearbox test rig comprises a first coupler for coupling a low-speed shaft of a first gearbox to a low-speed shaft of a second gearbox such that forces can be transmitted between the low-speed shafts of the first and second gearboxes. The gearbox test rig further comprises a second coupler for coupling a high-speed shaft of the first gearbox to a high-speed shaft of the second gearbox such that forces can be transmitted between the high-speed shafts of the first and second gearboxes, wherein the second coupler comprises a hydraulic rotary actuator for regulating a torque which is applied to the high-speed shafts of the first and second gearboxes. Such a gearbox test rig is particularly useful for testing heavy duty gearboxes, such as those used in wind turbines. 1. A gearbox test rig for testing first and/or second gearboxes having power ratings of 1 MW or more , the gearbox test rig comprising: a first coupler for coupling a low-speed shaft of a first gearbox to a low-speed shaft of a second gearbox such that forces can be transmitted between the low-speed shafts of the first and second gearboxes; and a second coupler for coupling a high-speed shaft of the first gearbox to a high-speed shaft of the second gearbox such that forces can be transmitted between the high-speed shafts of the first and second gearboxes , wherein the second coupler comprises a hydraulic rotary actuator for regulating a torque which is applied to the high-speed shafts of the first and second gearboxes.2. A gearbox test rig according to claim 1 , wherein the hydraulic rotary actuator comprises first and second members which are rotatable relative to each other claim 1 , each member being couplable or coupled to a high-speed shaft of a respective one of the first and second gearboxes.3. A gearbox test rig according to claim 2 , wherein the first member comprises an actuator shaft ...

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14-11-2013 дата публикации

Device and Method for Controlling Transmission Torque to Provide Hill Ascent and/or Descent Assistance

Номер: US20130304339A1
Принадлежит:

A device, system, and method for controlling transmission torque to provide hill ascent and/or descent assistance to a vehicle includes applying a clutch hold pressure to one or more clutches of a transmission to lock an output shaft of the transmission to resist roll-back of the vehicle. The clutch hold pressure is applied based on one or more of a transmission output speed signal, an engine throttle signal, and a vehicle brake signal. 1. A transmission control module for controlling an automatic transmission of a vehicle , the transmission control module comprising:a control circuit; anda memory electrically coupled to the control circuit and having stored therein a plurality of instructions that, when executed by the control circuit, cause the control circuit to apply a clutch hold pressure to at least one clutch of the automatic transmission as a function of (i) a transmission output speed signal indicative of a rotational output speed of the automatic transmission, (ii) a throttle signal indicative of application of a throttle of the vehicle, and (iii) a brake signal indicative of application of a brake of the vehicle,wherein the clutch hold pressure has a magnitude sufficient to lock an output shaft of the automatic transmission to resist roll-back of the vehicle.2. The transmission control module of claim 1 , wherein the plurality of instructions cause the control circuit to:compare the transmission output speed signal to an output speed threshold;compare the throttle signal to a throttle low threshold;compare the brake signal to a brake low threshold; andrelease the clutch hold pressure in response to (i) the output speed signal being greater than the output speed threshold, (ii) the throttle signal being greater than the throttle low threshold; and (iii) the brake signal being less than the brake low threshold.3. The transmission control module of wherein the plurality of instructions further cause the control circuit to release the clutch hold pressure in ...

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21-11-2013 дата публикации

Gear Position Detecting Device and Cycle Computer

Номер: US20130311131A1
Автор: Tanaka Hiroshi
Принадлежит: CATEYE CO., LTD.

A gear position detecting device includes a sensor device that senses an amount of displacement of a shift cable, and a cycle computer that calculates a gear position corresponding to a sprocket being used, based on the amount of displacement of the shift cable sensed by the sensor device, and displays the gear position. The cycle computer and the sensor device can be attached to and detached from a bicycle. The cycle computer has a function of converting a voltage drop across a variable resistor into a gear position of the bicycle. The sensor device has a housing fixed to the bicycle, the variable resistor accommodated in the housing, and an arm that is attached to the variable resistor and moves relative to the housing along with displacement of the shift cable. 1. A gear position detecting device that detects a gear position of a bicycle with a shift cable and displays the gear position , comprising:a sensor device that can be attached to and detached from said bicycle, and senses an amount of displacement of said shift cable with a variable resistor; anda cycle computer that can be attached to and detached from said bicycle, and calculates a gear position corresponding to a sprocket being used, based on the amount of displacement of said shift cable sensed by said sensor device, and displays the gear position,said cycle computer having a function of converting a voltage drop across said variable resistor into a gear position of said bicycle.2. The gear position detecting device according to claim 1 , whereinsaid sensor device has:a housing;said variable resistor accommodated in said housing; andan arm that is attached to said variable resistor, has an engaging portion with which said shift cable is brought into engagement, and moves relative to said housing along with displacement of said shift cable.3. The gear position detecting device according to claim 1 , whereinsaid cycle computer can display:the gear position corresponding to the sprocket being used; ...

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28-11-2013 дата публикации

METHOD FOR DYNAMICALLY CHECKING THE TEETH OF A PART AND CHECKING DEVICE USING SAID METHOD

Номер: US20130312512A1
Автор: Fels Eric, Schmitt Hubert
Принадлежит: THYSSENKRUPP SYSTEM ENGINEERING S.A.S.

A method and device () for dynamically checking the teeth of a part () including a first motorized spindle (), supporting the part () to be checked, is controlled by a first encoder (), and a second motorized spindle (), supporting a master pinion (), is controlled by a second encoder (). The two spindles () are parallel and separated from one another with the master pinion () meshing with the part () to be checked. The master pinion () has a small thickness, compared to the part () to be checked, and the spindle () is mounted on a first carriage () which is movable in order to move the master pinion () along the profile of the teeth of the part () to be checked. This method and device allows characterizing both the radial defects and the angular defects of the teeth, and these defects being differentiated. 119-. (canceled)201. A method for dynamically checking teeth of a part () defined at least by its module , its nominal diameter and its tooth profile , the method comprising the steps of:{'b': 1', '22', '25, 'mounting the part () to be checked on a first motorized spindle () angularly controlled by a first encoder (),'}{'b': 2', '32', '35, 'mounting a master pinion () on a second motorized spindle () angularly controlled by a second encoder (),'}arranging the two spindles parallel to one another and separating the two spindles by a center distance that allows the master pinion to mesh with the part to be checked,measuring angular deviations between the two spindles using the information supplied by the encoders, processing the information by a calculator and deducing possible defects of the teeth from these deviations,{'b': 2', '1, 'employing a master pinion () with a small thickness compared to the thickness of the part () to be checked so as to minimize the contact area of the teeth of the master pinion on the teeth of the part to be checked,'}{'b': 2', '1, 'when carrying out the measuring step, axially moving the master pinion () along a profile of the teeth ...

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05-12-2013 дата публикации

GEAR SHIFT SHOCK EVALUATION APPARATUS AND EVALUATION METHOD OF THE SAME

Номер: US20130319099A1
Принадлежит: JATCO Ltd

An evaluation unit includes a front-rear acceleration sensor and an up-down acceleration sensor. The evaluation unit calculates a length of a track obtained by plotting detected front-rear and up-down accelerations on a three-dimensional space along a time axis within a period from gear shift start of an automatic transmission to gear shift end, calculate a track length per unit time by dividing the length of the track by a time interval from the gear shift start to the gear shift end, and evaluates that a gear shift shock is larger as the track length per unit time is longer. 1. A gear shift shock evaluation apparatus of an automatic transmission mounted in a vehicle , comprising:a front-rear acceleration detection unit adapted to detect a front-rear acceleration of the vehicle;an up-down acceleration detection unit adapted to detect an up-down acceleration of the vehicle;a track-length-per-unit-time calculation unit adapted to calculate a length of a track obtained by plotting the detected front-rear and up-down accelerations on a three-dimensional space along a time axis within a period from gear shift start of the automatic transmission to gear shift end, and calculate a track length per unit time by dividing the length of the track by a time interval from the gear shift start to the gear shift end; anda gear shift shock evaluation unit adapted to evaluate that a gear shift shock is larger as the track length per unit time is longer.2. The gear shift shock evaluation apparatus according to claim 1 , further comprising:a filtering unit adapted to remove an acceleration derived from an input from an engine and/or an acceleration derived from an input from a road surface from the detected front-rear and up-down accelerations, whereinthe track-length-per-unit-time calculation unit is adapted to calculate a length of a track obtained by plotting values after filtering on the three-dimensional space along the time axis.3. A gear shift shock evaluation method of an ...

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12-12-2013 дата публикации

METHOD FOR CALIBRATING A TORSION TORQUEMETER

Номер: US20130327119A1
Автор: Haehner Edgar
Принадлежит: TURBOMECA

A method for calibrating a torsion torquemeter including: placing a torsion torquemeter in a first state; performing first measurements determining first and second angular offsets, and measuring torque output by the power shaft using a reference torquemeter; placing the torsion torquemeter in a second state; performing second measurements determining the first and second angular offsets, and measuring torque output by the power shaft; placing the torquemeter in a third state; performing third measurements determining the first and second angular offsets, and measuring the torque output by the power shaft; placing the torquemeter in a fourth state; performing fourth measurements determining the first and second angular offsets, and measuring the torque output by the power shaft; calibrating the calculation unit based on the first, second, third, and fourth measurements. 19-. (canceled)10. A method for calibrating a torsion torquemeter including:a power shaft configured to transmit rotational torque about an axis, the power shaft including a first wheel carrying a first and second series of angular reference points;a reference shaft including a first end attached to one end of the power shaft and a second end including a second wheel carrying a third and fourth series of angular reference points, the angular reference points of the first and third series being parallel to each other, and the angular reference points of the second and fourth series being parallel to one another while being inclined relative to the reference points of the first and third series;a measuring device to measure a first angular offset between two reference points respectively belonging to the first and third series of angular reference points, and a second angular offset between two reference points respectively belonging to the second and fourth series of angular reference points;a calculation unit to determine a torque value output by the power shaft on the basis of the first and second ...

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26-12-2013 дата публикации

METHOD AND SYSTEM FOR DETERMINATION OF A NEED FOR CONTACT POINT ADAPTATION

Номер: US20130345940A1
Принадлежит:

A method for determining a need for contact point adaptation for a clutch () of a vehicle (), which clutch () transmits driving power between a power source engine () and at least one powered wheel (). At a first point in time, determining a first temperature (T1) of the clutch (), comparing the first temperature (T1) with a second temperature (T2) of said clutch () determined at a second point in time which precedes the first point in time, and determining a need for contact point adaptation when the first temperature (T1) differs from the second temperature (T2) by more than a first value (ΔT)). 1. A method for determining a need for contact point adaptation for a clutch of a vehicle , such that said clutch is enabled to transmit driving power between a first power source comprising an engine of the vehicle and at least one powered wheel , the method comprises:determining a first temperature (T1) of said clutch at a first time;determining a second temperature (T2) of said clutch at a second time which precedes said first time;comparing said first temperature (T1) with said second temperature (T2); anddetermining said need for contact point adaptation when said first temperature (T1) differs from said second temperature (T2) by more than a first value (ΔT).2. A method according to claim 1 , further comprising determining said second temperature (T2) on an occasion of a contact point adaptation.3. A method according to claim 1 , further comprising determining said first value (ΔT) by means of a representation of said contact point's position as a function of temperature.4. A method according to claim 1 , further comprising determining said need for contact point adaptation when said contact point has an estimated position as a function of temperature changes by more than a first distance.5. A method according to claim 1 , wherein said first value (ΔT) depends on at least one of said first temperature (T1) and said second temperature (T2).6. A method according to ...

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02-01-2014 дата публикации

Handheld drill/driver device

Номер: US20140003876A1
Автор: Roehm Heiko
Принадлежит: ROBERT BOSCH GMBH

A handheld drill/driver device having a mechanical torque coupling that is provided to limit a maximum torque that can be transmitted to an insertion tool. The handheld drill/driver device have at least one monitoring unit that is provided to electrically output a characteristic quantity that is a function at least of a torque transmitted to the insertion tool. 1. A handheld drill/driver device , comprising:a mechanical torque coupling to limit a maximum torque that can be transmitted to an insertion tool; andat least one monitoring unit to electrically output a characteristic quantity that is a function at least of a torque transmitted to the insertion tool.2. The handheld drill/driver device of claim 1 , further comprising:a drive unit; anda control unit to shut off the drive unit as a function of the characteristic quantity of the monitoring unit.3. The handheld drill/driver device of claim 2 , wherein the shutting off of the drive unit as a function of the characteristic quantity of the monitoring unit is made so as to be deactivatable.4. The handheld drill/driver device of claim 2 , wherein the control unit is configured to shut off the drive unit as a function of the characteristic quantity of the monitoring unit and of an operator characteristic quantity.5. The handheld drill/driver device of claim 1 , wherein the torque coupling is configured so as to be deactivatable.6. The handheld drill/driver device of claim 1 , wherein the monitoring unit is configured to determine the characteristic quantity of the torque from at least one characteristic quantity of an energy supply of the drive unit.7. The handheld drill/driver device of claim 1 , wherein the monitoring unit includes an acceleration acquisition arrangement to determine the characteristic quantity of the torque.8. The handheld drill/driver device of claim 2 , wherein the control unit is configured to shut off the drive unit when a transmitted torque is reached that is greater than a maximum limiting ...

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13-02-2014 дата публикации

VEHICLE

Номер: US20140046563A1
Автор: MINAMI Kengo
Принадлежит: YAMAHA HATSUDOKI KABUSHIKI KAISHA

A vehicle includes a cruise control section arranged and programmed to perform control to maintain the vehicle speed at a prescribed vehicle speed while a clutch is engaged. A clutch actuator control section performs control to disengage the clutch when the value of a parameter becomes equal to or lower than a first threshold value, in the case where the cruise control section is determined to not be performing the control to maintain the vehicle speed at a prescribed vehicle speed; and performs the control to disengage the clutch when the value of the parameter becomes equal to or lower than a second threshold value, which is lower than the first threshold value, in the case where the cruise control section is determined to be performing the control to maintain the vehicle speed at a prescribed vehicle speed. 1. A vehicle comprising:an engine;a driving wheel arranged to be driven by the engine;a clutch located between the engine and the driving wheel;a clutch actuator arranged to disengage and engage the clutch;an engine rotation speed sensor arranged to detect a rotation speed of the engine;a vehicle speed detection sensor arranged to detect a vehicle speed;a clutch actuator control device arranged and programmed to control the clutch actuator;a cruise control device arranged and programmed to perform control to maintain the vehicle speed at a prescribed vehicle speed by controlling an output of the engine while the clutch is engaged, and to cancel the control to maintain the vehicle speed at a prescribed vehicle speed when the clutch is disengaged; anda determination device arranged to determine whether the cruise control device is performing the control to maintain the vehicle speed at the prescribed vehicle speed; whereinwhen the cruise control device is determined to not be performing the control to maintain the vehicle speed at a prescribed vehicle speed, the clutch actuator control device performs control to disengage the clutch when a value of a parameter, ...

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13-02-2014 дата публикации

WEAR-MONITORING OF A GEARBOX IN A POWER STATION

Номер: US20140046614A1
Автор: Pettersson Bo
Принадлежит: HEXAGON TECHNOLOGY CENTER GMBH

The invention relates to a method of monitoring a wear of a gearbox in a power station, such as a windmill, water-wheel or tidal power station, the gearbox comprising at least two shafts, cogwheels and bearings as components of the gearbox. The method comprises sensing an angular position at the shafts by a rotational shaft encoder and monitoring the wear of the transmission-unit according to differences of the sensed angular positions and generating a condition signal representative of the wear of the gearbox according to the monitored differences. The monitoring comprises an additional sensing of at least one additional degree of freedom, in particular an axial and/or eccentric displacement, of at least one of the shafts caused by wear of at least one of the components of the gearbox, and generating the condition signal according to the displacement and differences in the at least two degrees of freedom. 115-. (canceled)17. The method according to claim 16 , wherein the power station is a wind power station claim 16 , a waterwheel power plant claim 16 , or a tidal power plant.18. The method according to claim 16 , wherein the additional sensing of the displacement of the first shaft and/or the second shaft in at least one additional degree of freedom includes an axial and/or eccentric displacement caused by wear of at least one of the components of the gearbox.19. The method according to claim 16 , wherein the sensing of the angular position and of the displacement at one of the shafts is carried out by one single means claim 16 , which is sensing in at least two degrees of freedom.20. The method according to claim 19 , wherein the one single means comprises:a code carrier and a sensor arrangement, code carrier and sensor arrangement being rotatable relative to each other as a first degree of freedom; generating a code projection, dependent on the three- dimensional displacement of the code carrier relative to the sensor arrangement, onto the sensor arrangement ...

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06-01-2022 дата публикации

APPARATUS FOR MONITORING THE CONDITION OF A MACHINE

Номер: US20220003595A1
Автор: Hedin Lars-Olov Elis
Принадлежит:

A method for analyzing the condition of a machine, and an apparatus for analyzing the condition of a machine are described. 1. (canceled)2. A method of monitoring an operating condition status of a machine that includes a rotating component , the method comprising:obtaining signal data from a vibration sensor in proximity to the rotating component, said vibration sensor coupled with a portable first computing device; determining a first condition value corresponding to a first predetermined occurrence rate based on the obtained signal data;', 'determining a second condition value corresponding to a second predetermined occurrence rate based on the obtained signal data,;', 'monitoring a first change in the first condition value;', 'monitoring a second change in the second condition value;', 'determining a first indication for an amount of lubrication for the rotating component based on the monitored first change and the second change; and', 'determining a second indication of mechanical damage distinct from the lubrication damage based on a change in relation between the first condition value and the second condition value; and, 'performing signal processing of the obtained signal data with the first computing device prior to transmission, said signal processing comprisingtransmitting, over a wireless connection, the first indication and the second indication to a second computing device.3. The method according to claim 2 , wherein the second predetermined occurrence rate is higher than the first predetermined occurrence rate.4. The method according to claim 2 , wherein the signal processing comprises processing the obtained signal data in time domain.5. The method according to claim 2 , wherein the signal processing comprises processing the obtained signal data in frequency domain.6. The method according to claim 2 , wherein said second computing device is configured to display an operating condition status of the machine based on the determined first indication and ...

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05-01-2017 дата публикации

LINEAR MOTION DEVICE WITH EXTENDING TUBE FOR POSITIONING

Номер: US20170001314A1
Автор: Yim Mark
Принадлежит:

Linear motion devices that may include a band configured to be helically interlinked into a tube, where the band includes a plurality of protrusions and a plurality of recesses that engage the plurality of protrusions to link the band with itself. The linear motion devices also include a sliding guide configured to link and unlink the band, where the sliding guide includes an outer layer, an inner layer, and a ramp between the outer and inner layers having a helical incline to support a bottom portion of the band. The linear motion devices include a driving mechanism that is in contact with the band, the driving mechanism configured to move the band through the sliding guide up the helical incline to link the band, thereby extending the tube, and to move the band through the sliding guide down the helical incline to unlink the band, thereby retracting the tube. 1. A linear motion device comprising:a band configured to be helically interlinked into a tube, the band including a plurality of protrusions and a plurality of recesses that engage the plurality of protrusions to link the band with itself;a sliding guide configured to link and unlink the band, the sliding guide including an outer layer, an inner layer, and a ramp between the outer and inner layers having a helical incline to support a bottom portion of the band; anda driving mechanism in contact with the band, the driving mechanism configured to move the band through the sliding guide up the helical incline to link the band, thereby extending the tube, and to move the band through the sliding guide down the helical incline to unlink the band, thereby retracting the tube.2. The linear motion device of claim 1 , wherein moving the band down the helical ramp causes the plurality of protrusions on a top portion of the band to disengage from the plurality of recesses on the bottom portion of the band claim 1 , thereby causing the tube structure to retract in the linear direction.3. The linear motion device of ...

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05-01-2017 дата публикации

EXCAVATION SYSTEM PROVIDING IMPACT DETECTION

Номер: US20170002546A1
Принадлежит: CATERPILLAR INC.

An excavation system is disclosed for use with a mobile machine having a work tool. The excavation system may have a first sensor configured to generate a first signal indicative of a distance to an inclined face of the pile of material, and a controller in communication with the first sensor. The controller may be configured to determine a repose angle of the pile of material based on a known edge location of the pile of material and the distance. 1. An excavation system for a mobile machine having a work tool , comprising:a first sensor configured to generate a first signal indicative of a distance to an inclined face of the pile of material; anda controller in communication with the at least a first sensor and configured to determine a repose angle of the pile of material based on a known edge location of the pile of material and the first signal.2. The excavation system of claim 1 , further including at least a second sensor configured to generate a second signal indicative of engagement of the work tool with a pile of material claim 1 , wherein the known edge location is known based on the second signal.3. The excavation system of claim 2 , wherein:the distance is a horizontal distance;the first sensor is located a known elevation above a ground surface under the mobile machine; andthe controller is configured to determine the repose angle based on the horizontal distance and the known elevation.4. The excavation system of claim 3 , wherein the controller is further configured to:translate the horizontal distance to the edge location; anddetermine the repose angle based on the translated horizontal distance and the known elevation.5. The excavation system of claim 4 , wherein the controller is configured to determine the repose angle as an arc-tangent function.6. The excavation system of claim 2 , wherein the at least a second sensor includes:a torque sensor; andan acceleration sensor.7. The excavation system of claim 1 , wherein the first sensor includes:an ...

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07-01-2016 дата публикации

HYDRAULIC PRESSURE SUPPLY SYSTEM

Номер: US20160003208A1
Автор: SAKAI Kohei
Принадлежит: HONDA MOTOR CO., LTD.

A hydraulic pressure supply system, which is capable of properly controlling a degree of engagement of a clutch, thereby making it possible to improve vehicle drivability. The hydraulic pressure supply system includes a first hydraulic pressure supply device that uses an internal combustion engine as a motive power source and supplies hydraulic pressure to the clutch, and a second hydraulic pressure supply device that supplies hydraulic pressure to the clutch by being driven by a motive power source other than the engine, detects a vehicle speed and a rotational difference parameter that represents a difference in rotational speed between an output shaft of the clutch and an input shaft of the clutch, and controls clutch supply hydraulic pressure which is hydraulic pressure supplied to the clutch, according to the detected vehicle speed and rotational difference parameter, when restart conditions of the engine are satisfied. 15-. (canceled)6. A hydraulic pressure supply system for supplying hydraulic pressure to a hydraulic clutch which connects and disconnects between an internal combustion engine that is installed on a vehicle as a motive power source and is stopped when predetermined stop conditions are satisfied and restarted when predetermined restart conditions are satisfied , by a starter device that is not used as a motive power source of the vehicle , and drive wheels of the vehicle ,wherein the stop conditions include a condition that a speed of the vehicle is not higher than a predetermined stop vehicle speed which is larger than 0,the hydraulic pressure supply system comprising:a first hydraulic pressure supply device that uses the engine as a motive power source, and supplies hydraulic pressure to the clutch;a second hydraulic pressure supply device that supplies hydraulic pressure to the clutch by being driven by a motive power source other than the engine;detection means for detecting at least one of the speed of the vehicle and a rotational ...

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07-01-2016 дата публикации

DRY CLUTCH CONTROL METHOD FOR VEHICLE

Номер: US20160003312A1
Автор: Kim Jin Sung
Принадлежит:

Disclosed are dry clutch control method and apparatus for a vehicle. The method may include a reference speed generating step of generating a virtual target input shaft speed from a wheel speed, a vibration recognizing step of detecting a vibration component based on a difference between an actually measured input shaft speed and the virtual target input shaft speed, and a control input step of additionally applying an anti judder control input to a clutch control torque controlling a dry clutch connected to an input shaft. The anti judder control input may be applied to the vibration component recognized in the vibration recognizing step in a form of being continuously damped starting from an impulsive control input. 1. A dry clutch control method for a vehicle , comprising:a reference speed generating step of generating a virtual target input shaft speed from a wheel speed;a vibration recognizing step of detecting a vibration component based on a difference between an actually measured input shaft speed and the virtual target input shaft speed;a control input step of additionally applying an anti judder control input to a clutch control torque controlling a dry clutch connected to an input shaft, in which the anti judder control input is applied to the vibration component recognized in the vibration recognizing step in a form of being continuously damped starting from an impulsive control input.2. The dry clutch control method for a vehicle of claim 1 , wherein the anti judder control input applied in the control input step is determined by a differential equation over time:{'br': None, 'i': {dot over (T)}', '=−σT, 'sub': AJ', 'AJ', 'i', 'id, '+λ|ω−ω|'}wherein{'sub': 'AJ', 'Trepresents an anti judder control torque,'}σ represents a constant determining a damping speed of the anti judder control torque,λ represents an impulse magnitude of the anti judder control torque,{'sub': 'i', 'ωrepresents the actually measured input shaft speed, and'}{'sub': 'id', 'ω ...

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07-01-2016 дата публикации

DRY CLUTCH CONTROL METHOD FOR VEHICLE

Номер: US20160003313A1
Автор: Kim Jin Sung
Принадлежит:

A dry clutch control apparatus may include a vibration component extractor configured to generate a virtual target input shaft speed from a wheel speed and detect a vibration component based on a difference between an actually measured input shaft speed and the virtual target input shaft speed; and a feedback controller configured to feedback-apply as an anti judder control input a clutch control torque corresponding to only an amplitude in any one direction from a center of an amplitude of the vibration component recognized in the vibration component extractor. 1. A dry clutch control method for a vehicle , comprising:a reference speed generating step of generating a virtual target input shaft speed from a wheel speed;a vibration recognizing step of detecting a vibration component based on a difference between an actually measured input shaft speed and the virtual target input shaft speed;a control input step of applying as an anti judder control input a clutch control torque corresponding to only an amplitude in any one direction from a center of the amplitude of the vibration component recognized in the vibration recognizing step.2. The dry clutch control method for the vehicle of claim 1 , wherein in the control input step claim 1 , the clutch control torque is proportionally controlled at a size in proportion to the amplitude of the vibration component.3. The dry clutch control method for the vehicle of claim 1 , wherein in the control input step claim 1 , as among amplitudes in both directions from the center of the amplitude of the vibration component claim 1 , the clutch control torque is applied in a direction in which a clutch is fastened claim 1 , the clutch control torque corresponding to only amplitude in a direction in which the vibration of the clutch is offset is applied as the anti judder torque.4. The dry clutch control method for the vehicle of claim 1 , further comprising:a vibration state determining step of limiting the control input step to be ...

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07-01-2016 дата публикации

PRESSURE CONTROLLED DRIVELINE MECHANICAL COUPLING

Номер: US20160003314A1
Принадлежит:

A vehicle includes a motive power source, a transmission, and a clutch system. The vehicle further includes a controller that causes the clutch system to generate a generally constant clutch pressure to mechanically couple the motive power source and transmission as a line pressure associated with the transmission varies. 1. A method for controlling a clutch system comprising:providing a current to the clutch system to mechanically couple an electric machine and transmission based on a target clutch pressure and a line pressure associated with the transmission;receiving data about an actual clutch pressure; andaltering the current based on the data to keep the actual clutch pressure substantially equal to the target clutch pressure as the line pressure varies.2. The method of further comprising selecting the target clutch pressure based on the line pressure.3. The method of claim 1 , wherein the line pressure varies due to activation of a mechanical oil pump while an electric oil pump is on.4. A vehicle comprising:a clutch system; anda controller configured to provide a current to the clutch system to mechanically couple an electric machine and transmission based on a target clutch pressure and a line pressure associated with the transmission, and to alter the current based on received data about an actual clutch pressure to keep the actual clutch pressure substantially equal to the target clutch pressure as the line pressure varies.5. The vehicle of claim 4 , wherein the controller is further configured to select the target clutch pressure based on the line pressure.6. The vehicle of claim 4 , wherein the line pressure varies due to activation of a mechanical oil pump while an electric oil pump is on. This application is a divisional of application Ser. No. 13/329,785, filed Dec. 19, 2011, the disclosure of which is hereby incorporated in its entirety by reference herein.This disclosure relates to the control of mechanical coupling devices, such as clutches, for ...

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02-01-2020 дата публикации

METHOD AND DEVICE FOR OPERATING DRIVETRAIN

Номер: US20200003265A1
Автор: Seidl Holger
Принадлежит:

A vehicle drive train, has a clutch unit actuatable by an actuating unit, and a sensor for determining the coupling status. The actuating unit includes an electromagnetic actuator having a piston movable from a starting to an end position. At least the piston and the clutch are acted on by a transmission fluid. Operating the drive train can include: 18.-. (canceled)9. A method for operating a drive train of a vehicle , wherein the drive train has at least a transmission housing , and a clutch unit situated therein with a clutch that acts in a form-fitting manner , as well as an actuating unit for actuating the clutch , and a sensor for determining the coupling status; wherein the clutch includes at least a first clutch component and a second clutch component that are connected to one another in a form-fitting manner when the clutch is actuated;wherein the actuating unit includes an electromagnetic actuator having a piston; wherein for actuating the clutch the piston is moved from a starting position into an end position; wherein at least the piston and the clutch are acted on at least partially by a transmission fluid; wherein a torque is transmitted via the clutch components only after a fully engaged first state of the clutch components is determined in which the piston is in the end position; wherein a position of the piston may be determined with the sensor; and wherein the method includes at least the following steps:a) actuating the actuator and moving the piston from the starting position;b) ascertaining a measured sensor value;c) ascertaining a temperature of the transmission fluid;d) determining an actual position of the piston based on the measured sensor value and the temperature; ande) moving the piston, starting from the determined actual position, into the end position; i. measuring an electrical resistance of the actuator, or', 'ii. measuring a first time interval between actuation of the actuator according to step a) and the detection by the sensor ...

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04-01-2018 дата публикации

AGGREGATED PULSE PHASE DIFFERENCE TORQUE DETERMINATION SYSTEM AND METHOD

Номер: US20180003578A1
Принадлежит:

The disclosed system and method determines torque applied to a rotating shaft by a load. Two sensors determine the rotation of the shaft at two spaced-apart axial positions. Controller(s) analyze two pulse trains associated with signals received from the sensors corresponding to rotation of the shaft at the respective axial positions under the load. The controller(s) determine a delta phase value for each pulse of one pulse train with respect to a corresponding pulse of another pulse train, and aggregate each delta phase value for a prescribed period of pulses to determine an aggregate delta phase value. The controller(s) determine a load phase value as a ratio of the aggregate delta phase value to the prescribed period, a total delta phase value as a difference between the load phase value and a reference phase value, and a torque value from the load based on the total delta phase value and physical parameters of the shaft. 1. A method of determining torque applied to a rotating shaft by a load , comprising:detecting, via a first sensor, a rotation of the shaft at a first axial position;detecting, via a second sensor, a rotation of the shaft at a second axial position axially spaced from the first axial position;analyzing, via one or more controllers, a first pulse train associated with a signal received from the first sensor corresponding to rotation of the shaft at the first axial position under the load;analyzing, via the one or more controllers, a second pulse train associated with a signal received from the second sensor corresponding to rotation of the shaft at the second axial position under the load;determining, via the one or more controllers, a delta phase value for each pulse of the first pulse train with respect to a corresponding pulse of the second pulse train;aggregating, via the one or more controllers, each delta phase value for a prescribed period of pulses to determine an aggregate delta phase value;determining, via the one or more controllers, a ...

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03-01-2019 дата публикации

METHOD, APPARATUS AND SYSTEM FOR DETECTING FATIGUE STATE OF COG BELT OF WIND POWER GENERATOR SET

Номер: US20190003460A1

A method for detecting fatigue state of cog belt of wind power generator set is provided, including acquiring pitch angles satisfying preset condition, acquiring signal characteristic values corresponding to the pitch angles, selects from the pitch angles according to acquisition timing sequence of signal characteristic values pitch angles at which signal characteristic value changes, performing characteristic statistics on selected pitch angles to acquire characteristic statistic value and determining whether the cog belt is in fatigue state by comparing characteristic statistic value with predetermined threshold. 1. A method for detecting a fatigue state of a cog belt of a wind power generator set , comprising:acquiring pitch angles satisfying a preset condition;acquiring signal characteristic values corresponding to the pitch angles;selecting, from the pitch angles, pitch angles at which the signal characteristic value changes, according to an acquisition timing sequence of the signal characteristic values;performing characteristic statistics on the selected pitch angles to acquire a characteristic statistic value; anddetermining whether the cog belt is in the fatigue state, by comparing the characteristic statistic value with a predetermined threshold.2. The method for detecting the fatigue state of the cog belt of the wind power generator set according to claim 1 , further comprising:saving the characteristic statistic value and forming a recording file, in response to determine that the cog belt is in the fatigue state.3. The method for detecting the fatigue state of the cog belt of the wind power generator set according to claim 1 , further comprising:determining whether the wind power generator set is in a pitch varying state;wherein determining whether the wind power generator set is in the pitch varying state comprises:determining whether a current pitch angle is greater than a predetermined minimum pitch angle, and in response to a positive determination, ...

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03-01-2019 дата публикации

ABNORMALITY DIAGNOSTIC METHOD FOR FEED AXIS AND ABNORMALITY DIAGNOSTIC DEVICE FOR THE SAME

Номер: US20190003924A1
Автор: HONGO Takumi
Принадлежит: Okuma Corporation

It is an object to perform an abnormality diagnosis for a feed axis without additionally adding a sensor or the like. A frequency characteristic of a feed axis and a damage frequency that occurs when the feed axis that has been damaged performs an axis operation are obtained, a frequency where a gain is maximized in the obtained frequency characteristic is calculated, and a feed velocity where the frequency matches the damage frequency is calculated. An axis operation is performed on the feed axis with the calculated feed velocity, and a frequency analysis is performed on servo information regarding a control of a servo motor during the axis operation. Then, the presence and absence of a peak of the damage frequency is confirmed from a result of the frequency analysis, and when the peak is present, it is determined that it is abnormal. 1. An abnormality diagnostic method for feed axis , in a machine including a feed axis that moves a moving body via a ball screw that rotates by a servo motor , the method performing:a frequency obtaining step of obtaining a frequency characteristic of the feed axis and a damage frequency that occurs when the feed axis that has been damaged performs an axis operation;a feed velocity calculating step of calculating a feed velocity configured to detect a peak of the damage frequency from the obtained frequency characteristic;an axis operation step of performing the axis operation on the feed axis with the calculated feed velocity;a frequency analysis step of performing a frequency analysis on servo information regarding a control of the servo motor during the axis operation; anda determining step of confirming presence and absence of the peak of the damage frequency from a result of the frequency analysis to determine the abnormality when the peak is present.2. The abnormality diagnostic method for feed axis according to claim 1 , whereinin the feed velocity calculating step, as the feed velocity, a feed velocity is calculated such that ...

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13-01-2022 дата публикации

TRANSMISSION HEALTH INDICATION AND LIFE PREDICTION

Номер: US20220010871A1
Принадлежит:

To detect the occurrence of slippage, a transmission health monitor integrates speed measurements for an engine shaft and a transmission shaft to determine a number of revolutions for each shaft. The monitor then uses a ratio of the revolutions adjusted for a transmission gear ratio to determine whether slippage has occurred. Based on the slippage, the monitor can determine a cumulative amount of wear on a clutch for each gear and track the rate of change of slippage over time to determine a rate at which wear is occurring. The monitor can also correlate slippage calculations with torque measurements to identify operating conditions at which slippage is occurring. The monitor uses the cumulative amount of slippage, the rate of change of slippage, and the operating conditions at which slippage is occurring to estimate a remaining lifespan for a clutch or indicate that a clutch should be repaired or replaced. 1. A method comprising:obtaining first speed measurements for a first shaft and second speed measurements for a second shaft, wherein the first shaft and the second shaft are connected by a transmission;determining, using the first speed measurements and the second speed measurements from a first time window, a number of revolutions of the first shaft and a number of revolutions of the second shaft;calculating, for the first time window, first slip revolutions caused by a first clutch of the transmission based, at least in part, on the number of revolutions of the first shaft and the number of revolutions of the second shaft, wherein the first clutch operates in connection with a first gear range of the transmission; andindicating a health status of the first clutch based, at least in part, on the first slip revolutions.2. The method of further comprising:calculating, for a second time window, second slip revolutions caused by the first clutch; anddetermining a rate of change between the first slip revolutions and the second slip revolutions;wherein indicating ...

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08-01-2015 дата публикации

System and Method for Tracked Vehicle Dynamometer Testing

Номер: US20150007643A1
Принадлежит:

A system and method for tracked vehicle dynamometer testing. The dynamometer system may be configured as a treadmill electric chassis dynamometer having dual, parallel endless belts positioned as substantially flat surfaces with cleats, i.e., the tracks of a test vehicle and a dynamometer vehicle. The track assemblies of the test vehicle and the dynamometer vehicle are generally vertically, mechanically coupled in close contact with each other via a retention fixture. The testing may be conducted in a climatic chamber to simulate various environmental conditions. 1100. A system () for tracked vehicle dynamometer testing , the system comprising:{'b': '50', 'a dynamometer vehicle (_DYNO) having dynamometer vehicle tracks;'}{'b': '50', 'a test vehicle (_TEST) having test vehicle tracks, wherein the test vehicle is similar to the dynamometer vehicle; and'}{'b': 120', '122', '140', '160, 'claim-text': {'b': 120', '50', '50', '140', '160', '120', '50', '122, 'the test fixture () vertically, mechanically couples the test vehicle (_TEST) and the dynamometer vehicle (_DYNO) together via the front retention bracket () and the rear retention bracket () such that there is direct, adjacent contact of the test vehicle tracks to the dynamometer vehicle tracks, and the test fixture () elevates the dynamometer vehicle (_DYNO) above the base () such that the dynamometer vehicle tracks move freely during the dynamometer testing.'}, 'a test fixture () comprising a base (), a front retention bracket (), and a rear retention bracket (); wherein,'}2505050. The system of claim 1 , wherein the system comprises an electromagnetic absorption dynamometer claim 1 , and the dynamometer vehicle (_DYNO) comprises an electric motor that is configured as a generator claim 1 , wherein during the dynamometer testing the electric motor (i) provides a load to the test vehicle (_TEST) via an electrically coupled adjustable electrical resistance and (ii) an assist to the test vehicle (_TEST) via an ...

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08-01-2015 дата публикации

System and a method of inspecting a rotary part to be monitored that is arranged in a mechanical member

Номер: US20150007660A1
Принадлежит: Airbus Helicopters SAS

A system and method for inspecting a part to be monitored that is arranged inside a mechanical member, said part to be monitored including a plane wall and a curved wall presenting an angle between them. The system comprises a probe endoscope ( 20 ) carrying a head ( 30 ), said head ( 30 ) presenting a plane face ( 31 ) that is suitable for being pressed against said plane wall, said head ( 30 ) having an ultrasound probe ( 35 ) and at least one magnet ( 36 ) flush with said plane face ( 31 ), said head ( 30 ) having a curved face ( 32 ) that is perpendicular to the plane face ( 31 ) and that matches the shape of the curved wall of the part to be monitored, the plane face ( 31 ) and the curved face ( 32 ) forming an L-shaped structure that is suitable for being held against the part to be monitored via each magnet ( 36 ), while allowing said part to be monitored to rotate relative to said head ( 30 ).

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12-01-2017 дата публикации

CLUTCH SYSTEM

Номер: US20170009820A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A clutch system of the present invention executes, when switching a selectable one-way clutch from a lock mode to a free mode, an early mode switching control where while a selector plate is made go into a waiting state that a pawl member protruding from a fixed plate is abutting against a non-formation portion, a negative torque is made to act on a rotational plate in a negative rotational direction, and, by controlling the negative torque, the selector plate of the waiting state is made to rotate up to a release position. 1. A clutch system comprising:a fixed plate being fixed so as to restrict rotation;a rotational plate where at least one recess is formed, each of the at least one recess opening at a surface of the rotational plate, the surface facing the fixed plate;at least one pawl member, each of the at least one pawl member being provided to the fixed plate protrudably toward the rotational plate from the fixed plate, and in a case of protruding from the fixed plate, engaging with the recess formed in the rotational plate only when the rotational plate is rotating in a predetermined rotational direction;a selector plate which is disposed between the fixed plate and the rotational plate, and has at least one aperture, each of the at least one aperture being formed to let the pawl member through, the selector plate being capable of rotating relatively to the fixed plate between a lock position where the pawl member is allowed to protrude from the fixed plate by passing through the aperture and a release position where the pawl member is restricted so as not to protrude from the fixed plate by contacting with a non-formation portion where no aperture is formed;a drive device which rotatively drives the selector plate; anda computer functioning, by executing a computer program, as a control device, the control device being configured so as to rotate the selector plate from the lock position to the release position by operating the drive device so that an ...

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12-01-2017 дата публикации

METHOD FOR PREVENTING OVERHEATING OF CLUTCH FOR VEHICLE

Номер: US20170009823A1
Автор: CHO Woon Ki
Принадлежит: HYUNDAI MOTOR COMPANY

A method for preventing overheating of a clutch for a vehicle may include determining, by a controller, whether a state of the vehicle satisfies a hill hold condition; acquiring, by the controller, a temperature of a clutch between an engine and a transmission when the hill hold condition is satisfied; applying, by the controller, a first torque having a predetermined square wave shape to the clutch when the temperature of the clutch reaches a first temperature; and applying, by the controller, a second torque having a predetermined sine wave shape to the clutch when the temperature of the clutch reaches a second temperature higher than the first temperature. 1. A method for preventing overheating of a clutch for a vehicle comprising:determining, by a controller, whether a state of the vehicle satisfies a hill hold condition;acquiring, by the controller, a temperature of a clutch between an engine and a transmission when the hill hold condition is satisfied;applying, by the controller, a first torque having a predetermined square wave shape to the clutch when the temperature of the clutch reaches a first temperature; andapplying, by the controller, a second torque having a predetermined sine wave shape to the clutch when the temperature of the clutch reaches a second temperature higher than the first temperature.2. The method for preventing overheating of the clutch for the vehicle of claim 1 , wherein the first torque is a square wave shaped torque repeatedly changed by a maximum value higher than a target value constantly during a predetermined time and a minimum value lower than the target value constantly during the predetermined time; andthe target value is a target clutch torque depending on a displacement amount of an accelerator pedal.3. The method for preventing overheating of the clutch for the vehicle of claim 2 , wherein the second torque is a sine wave shaped torque progressing along the target value of the first torque having the square wave shape.4. ...

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27-01-2022 дата публикации

Method for determining the biting point of a hybrid disconnect clutch of a hybrid vehicle

Номер: US20220025942A1
Автор: Enders Timo
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A method determines the biting point of a hybrid disconnect clutch of a hybrid vehicle. The hybrid disconnect clutch disconnects or connects an internal combustion engine and a first electric motor, which is arranged on the output side. A second electric motor, which is arranged on the internal combustion engine side and is rigidly connected to the internal combustion engine, is operated at a constant rotational speed during electric travel by means of the first electric motor. The hybrid disconnect clutch is moved from the open state toward the closed state and the load on the second electric motor is monitored. When the load on the second electric motor reaches a predefined load threshold value, it is determined that the biting point has been reached. 1. A method for determining a biting point of a hybrid disconnect clutch of a hybrid vehicle , the hybrid disconnect clutch electively coupling an internal combustion engine and a first electric motor , the first electric motor arranged on an output side , and a torque output by the internal combustion engine or the first electric motor is transferred to drive wheels of the hybrid vehicle , the method comprising moving the hybrid disconnect clutch from an open state into a closed state in order to determine the biting point , wherein a second electric motor , which is arranged on an internal combustion engine side and is rigidly connected to the internal combustion engine , is operated at a constant rotational speed during electric travel by means of the first electric motor , a load on the second electric motor being monitored while the hybrid disconnect clutch is moved from the open state to the closed state , it being detected that the biting point has been reached when the load on the second electric motor has reached a predefined load threshold value.2. The method according to claim 1 , wherein the internal combustion engine is unfired and is kept at the constant rotational speed by the second electric motor.3. ...

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27-01-2022 дата публикации

APPARATUS AND METHOD FOR TESTING DRIVE SHAFT JOINTS

Номер: US20220026308A1
Принадлежит:

A first shaft segment and a second shaft segment are joined by a first fastener and a second fastener to form a shaft test assembly. The first shaft segment and the second shaft segment are each curved between first and second circumferential ends. A method of testing a shaft includes displacing a first applicator part relative a second applicator part to exert a load on the shaft test assembly. The resulting shear stress on the shaft test assembly can be measured to determine material properties of the shaft. A first applicator part extends at least partially into the shaft test assembly and interfaces with the first shaft segment to apply a load. A second applicator part extends at least partially into the shaft test assembly and interfaces with the second shaft segment to apply a load. 1. A method of testing a shaft , the method comprising:displacing a first applicator part relative a second applicator part to exert a first tensile force on a shaft test assembly;measuring a shear force experienced by the shaft test assembly;wherein the first applicator part extends at least partially through the shaft test assembly and contacts a first shaft segment of the shaft test assembly;wherein the second applicator part extends at least partially through the shaft test assembly and contacts a second shaft segment of the shaft test assembly; andwherein the first shaft segment is connected to the second shaft segment by a first fastener and a second fastener.2. The method of claim 1 , further comprising:cutting a first shaft section from a first shaft to a first width;cutting a second shaft section from a second shaft to a second width;removing a first circumferential portion of the first shaft section to form the first shaft segment; andremoving a second circumferential portion of the second shaft section to form the second shaft segment.3. The method of claim 2 , further comprising cutting the first shaft section and the second shaft section such that the first width is ...

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14-01-2016 дата публикации

Vehicle Clutch Control Systems

Номер: US20160010707A1
Принадлежит:

A vehicle having a clutch which connects an engine with a driveline which includes a multi-ratio gearbox, the clutch having an actuator which can be operated by a vehicle driver to engage and disengage the clutch, the actuator also having a control system arranged to move the clutch between fully engaged and fully released positions through a range of positions allowing variable levels of clutch slip in order to automatically reduce torsional vibrations in the driveline. The control system is configured to recognise a plurality of predetermined Vehicle Operation Modes defined by the combination of a Clutch Slip Status criterion as hereinbefore defined with one or more of the hereinbefore defined operating criteria of Manual Clutch Position Control Input Interface Status, Release Bearing Position Status and Slip Velocity Demand Status and, dependent on the recognised Vehicle Operation Mode, the control system applies a different clutch control strategy to achieve the required level of clutch slip to damp vibration in the driveline and provide transition between the different Vehicle Operation Modes without exciting an uncomfortable level of vibration in the driveline. 1. A clutch control system for controlling a clutch which connects an engine with an associated vehicle driveline which includes a multi-ratio gearbox , the clutch control system having an actuator which can be operated by a vehicle driver to engage and disengage the clutch , the actuator also being operable by the clutch control system to move the clutch between fully engaged and fully released positions through a range of positions allowing variable levels of clutch slip in order to automatically reduce torsional vibrations in the driveline , the clutch control system being configured to recognize a plurality of predetermined Vehicle Operation Modes of the associated vehicle defined by the combination of a Clutch Slip Status criterion , wherein the Clutch slip Status criterion is the current state of ...

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14-01-2021 дата публикации

CONSTRUCTION MACHINE WITH ROTOR LOAD MONITORING

Номер: US20210010213A1
Автор: Schlenker Brian J.
Принадлежит: Caterpillar Paving Products Inc.

A machine for road work for road work, the machine can comprise: a frame, a drive system including a power source carried by the frame, a milling system driven by the power source and a controller. The milling system can comprise: a rotor configured to rotate and remove an amount of material from a working area a drive member coupling the rotor to be driven by the power source; a tensioner assembly configured to tension the drive member; and a sensor configured to measure the tension of the drive member. The controller can be configured to, in response to a signal received from the sensor, determine if the rotor has encountered an object capable of damaging the rotor. 1. A machine for road work , the machine comprising:a frame;a drive system including a power source carried by the frame; a rotor configured to rotate and remove an amount of material from a working area;', 'a drive member coupling the rotor to be driven by the power source;', 'a tensioner assembly configured to tension the drive member; and', 'a sensor configured to measure the tension of the drive member; and', 'a controller configured to, in response to a signal received from the sensor, determine if the rotor has encountered an object capable of damaging the rotor., 'a milling system driven by the power source, the milling system comprising2. The machine of claim 1 , wherein the tensioner assembly includes a hydraulic cylinder claim 1 , and wherein the sensor comprises a pressure sensor configured to measure a pressure of the hydraulic cylinder as indicative of the tension of the drive member.3. The machine of claim 2 , wherein the pressure of the hydraulic cylinder decreases by 10% or more from a mean pressure when the rotor has initially encountered the object capable of damaging the rotor.4. The machine of claim 3 , wherein the controller determines if the rotor has encountered the object capable of damaging the rotor by one or more of:determining if the pressure decreases by at least 10% as ...

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14-01-2021 дата публикации

CLUTCH CONTROL SYSTEM

Номер: US20210010544A1
Автор: Nagaoka Takahiro
Принадлежит:

A system is configured to control a clutch that connects a first rotating body and a second rotating body. The system includes a biasing portion, an actuator, an energization device, and a control unit. The biasing portion permanently biases the clutch in a connecting direction. The actuator drives the clutch in a disconnecting direction. The energization device energizes the actuator. The control unit controls the energization device. The energization device outputs a first current value to the actuator when a connection of the clutch is detected even if a condition for permitting a disconnection is satisfied. The energization device outputs a second current value lower than the first current value when the condition for permitting the disconnection is satisfied and a disconnection of the clutch is detected. 1. A system for controlling a clutch that connects a first rotating body and a second rotating body , the system comprising:a biasing portion configured to permanently bias the clutch in a connecting direction;an actuator configured to drive the clutch in a disconnecting direction;an energization device electrically connected to the actuator and configured to energize the actuator; anda control unit electrically connected to the energization device and configured to control the energization device,wherein the control unit is configured to cause the energization device to output a first current value to the actuator when a connection of the clutch is detected even if a condition for permitting a disconnection is satisfied, andwherein the control unit is configured to cause the energization device to output a second current value lower than the first current value when the condition for permitting the disconnection is satisfied and a disconnection of the clutch is detected.2. The system according to claim 1 , further comprising:a detection device electrically connected to the control unit and configured to detect whether the clutch is connected or disconnected ...

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14-01-2021 дата публикации

POWER TRANSMISSION DEVICE AND INDUSTRIAL MACHINE

Номер: US20210010899A1
Автор: SUGAHARA Keisuke
Принадлежит:

A power transmission device includes: a first pulley; a second pulley having a diameter equal to or larger than a diameter of the first pulley; a belt wound around the first pulley and the second pulley; and a detection unit configured to detect a displacement of the belt in a direction intersecting the surface of the belt. The detection unit is configured to detect the displacement of the belt at a predetermined measuring point. The distance from the border between a portion where the belt and the first pulley are in contact with each other and a portion where the belt and the first pulley are not in contact with each other, to the measuring point is equal to or smaller than the diameter of the first pulley. 1. A power transmission device , comprising:a first pulley;a second pulley having a diameter equal to or larger than a diameter of the first pulley;a belt wound around the first pulley and the second pulley; anda detection unit configured to detect a displacement of the belt in a direction intersecting a surface of the belt, wherein:the detection unit is configured to detect the displacement of the belt at a predetermined measuring point; anda distance from a border between a portion where the belt and the first pulley are in contact with each other and a portion where the belt and the first pulley are not in contact with each other, to the measuring point is equal to or smaller than the diameter of the first pulley.2. The power transmission device according to claim 1 , wherein the detection unit is arranged on one side of a line connecting a center of the first pulley and a center of the second pulley.3. The power transmission device according to claim 1 , wherein the detection unit is arranged on each of both sides of a line connecting a center of the first pulley and a center of the second pulley.4. The power transmission device according to claim 1 , further comprising a display unit configured to display information regarding the displacement claim 1 , ...

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10-01-2019 дата публикации

Method And Test Bench For Carrying Out A Test Run For A Test Specimen

Номер: US20190011329A1
Автор: Merl Reinhard
Принадлежит:

In order to make it possible to simply carry out a realistic test on a vehicle or a sub-system of the vehicle including a control unit that processes the sensor values of a measured quantity , on a test bench, and taking into account the state of the vehicle dynamics, the control unit is switched into a testing mode in order to carry out the test run. Calculated values of the same measured quantity are calculated in a simulation unit and the calculated values of the measured quantity are supplied to the control unit in addition to the detected sensor values of the measured quantity. In testing mode, the control unit ignores the detected sensor values of the measured quantity and omits the plausibility check of the calculated values of the measured quantities. 1. A method for carrying out a test run on a test bench for a test specimen , at least one measuring sensor being arranged on the test specimen , which sensor detects sensor values of a measured quantity that are supplied to a control unit , of the test specimen , and in which control unit the detected sensor values of the measured quantity are processed in accordance with a plausibility check in order to control a function of the test specimen , wherein the control unit is switched into a testing mode for carrying out the test run , in that calculated values of the same measured quantity are calculated in a simulation unit and the calculated values of the measured quantity are supplied to the control unit in addition to the detected sensor values of the measured quantity , and in that , in testing mode , the control unit ignores the detected sensor values of the measured quantity and omits the plausibility check of the calculated values of the measured quantities.2. The method according to claim 1 , wherein the calculated values are supplied to the control unit via a vehicle bus connected thereto.3. A test bench for carrying out a test run using a test specimen including a control unit claim 1 , at least one ...

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14-01-2021 дата публикации

APPARATUS AND METHOD FOR TESTING AUTOMATED VEHICLES

Номер: US20210010902A1
Принадлежит:

A vehicle longitudinal speed control testing apparatus includes a first movable target body spaced away from a vehicle executing active speed control while loaded by a dynamometer assembly, and a controller. The controller changes a distance between the first movable target body and the vehicle to cause a speed parameter of the vehicle to follow a desired vehicle speed schedule based on speed parameter feedback from the dynamometer assembly or the vehicle, a sum of a speed of the first movable target body and the speed parameter feedback to follow a desired absolute speed schedule, or the distance between the first movable target body and the vehicle to increase according to a desired distance schedule. 1. A testing method comprising:while a dynamometer assembly applies a load to a vehicle that is executing active speed control during a first laboratory test of the vehicle, automatically controlling, according to speed parameter feedback from the dynamometer assembly or the vehicle, (i) a position of a first movable target body spaced away from the vehicle or (ii) a first electronic target simulator configured to generate signals indicative of one or more virtual objects moving relative to the vehicle to cause a speed parameter of the vehicle to follow a desired speed schedule.2. The testing method of further comprisingcollecting emissions, fuel consumption, or power consumption data of the vehicle during the first laboratory test, andduring a second laboratory test of the vehicle with the active speed control disabled, controlling the speed parameter according to the desired speed schedule and collecting emissions, fuel consumption, or power consumption data of the vehicle during the second laboratory test.3. The testing method of further comprising comparing the emissions claim 2 , fuel consumption claim 2 , or power consumption data of the first laboratory test with the emissions claim 2 , fuel consumption claim 2 , or power consumption data of the second ...

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14-01-2021 дата публикации

CONTROL DEVICE OF DYNAMOMETER SYSTEM

Номер: US20210010903A1
Принадлежит:

A control device of a dynamometer system is provided with: a driving force observer which estimates a generated driving force of a vehicle; an electrical inertia control unit which uses the driving force to generate a front wheel basic torque command signal and a rear wheel basic torque command signal; a synchronization control unit which generates a synchronization control torque command signal with respect to the basic torque command signal and the basic torque command signal in such a way as to eliminate a speed difference; and torque command signal generating units which use the synchronization control torque command signal to adjust the basic torque command signal and the basic torque command signal. The synchronization control unit is defined in such a way that the poles of a denominator polynomial of a transfer function from the driving force to the speed difference are all negative real numbers. 1. A control device of a dynamometer system that includes: a first driven member and a second driven member on which a first wheel and a second wheel of a vehicle are respectively placed and which are respectively driven by rotations of the first wheel and the second wheel; a first dynamometer and a second dynamometer which are respectively coupled to the first and second driven members; and a first speed sensor and a second speed sensor which respectively detect speeds of the first and second dynamometers ,the control device comprising: a driving force estimator which estimates a generated driving force of the vehicle;a torque command signal generator which generates a first torque command signal for the first dynamometer and a second torque command signal for the second dynamometer using the generated driving force that is estimated by the driving force estimator;a synchronization correction signal generator which generates a first torque correction signal for the first torque command signal and a second torque correction signal for the second torque command signal ...

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10-01-2019 дата публикации

Battery Emulator And Method For Controlling The Battery Emulator

Номер: US20190011941A1
Автор: König Oliver
Принадлежит:

In order to achieve sufficiently stable output voltage with low losses even during rapid load changes in a battery emulator, a battery emulator is controlled using model-based control with a model of the battery emulator, wherein a line inductance of the electric line and the back-up capacitor is integrated into the model of the battery emulator. 1. A method for controlling a battery emulator having an output filter with a filter capacitor and a separate back-up capacitor , wherein the filter capacitor of the battery emulator is connected to the back-up capacitor with an electric line , and for controlling a model-based control using a model of the battery emulator is employed , wherein a line inductance of the electric line and the back-up capacitor is integrated into the model of the battery emulator.21. The method according to , wherein a load model of an electrical test object that is powered by the battery emulator is additionally integrated into the model of the battery emulator.3. The method according to claim 2 , wherein an input capacitance of the test object is used as the load model.4. The method according to claim 2 , wherein a constant power load is used as the load model claim 2 , wherein the constant power load is linearized around an operating point of the battery emulator.5. A battery emulator having a voltage supply claim 2 , which has an input-side rectifier with a direct current intermediate circuit claim 2 , a DC-DC converter that is connected thereto and an output filter with a filter capacitor at the output of the DC-DC converter claim 2 , also having a back-up capacitor claim 2 , which is physically separated from the voltage supply claim 2 , wherein the filter capacitor is connected to the back-up capacitor with an electric line claim 2 , and having an emulator control unit for the model-based control of the battery emulator claim 2 , in which a model of the battery emulator is implemented claim 2 , wherein a line inductance of the electric ...

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03-02-2022 дата публикации

METAL OR RUBBER RESONATORS FOR USE IN MONITORING CONVEYOR BELT WEAR AND LONGITUDINAL RIP SENSOR SYSTEMS

Номер: US20220033191A1
Автор: Wallace Jack Bruce
Принадлежит: ContiTech Transportbandsysteme GmbH

A system for detecting properties of a rubber product is disclosed. The system includes a dipole antenna and circuitry. The dipole antenna is configured to obtain antenna measurements and measure for a resonance frequency of a conductive resonator (), wherein the dipole antenna () is positioned at a first position (A) and a second position (B). The circuitry is configured to determine one or more resonator properties (X) based on the antenna measurements. 1. A system for detecting one or more properties of a rubber product , the system comprising:an embedded conductive resonator embedded in the rubber product, the resonator having a sheathing where dielectric properties of the resonator are based on wear of the sheathing and a resonance frequency of the resonator is based on the dielectric properties;an antenna configured to obtain antenna measurements of the embedded conductive resonator, wherein the dipole antenna is and positioned in one or more positions proximate to the embedded conductive resonator; andcircuitry configured to determine one or more resonator properties based on the antenna measurements, wherein the one or more resonator properties include a change in resonance frequency.2. (canceled)3. The system of claim 1 , wherein the circuitry is configured to determine characteristics of the rubber product based on the determined one or more resonator properties claim 1 , prior resonance information claim 1 , resonator position and resonator identification information.4. The system of claim 3 , wherein the determined characteristics of the rubber product comprise one or more of temperature claim 3 , compound aging claim 3 , damage claim 3 , wear and rip.5. The system of claim 3 , wherein the prior resonance information comprises previous antenna measurements for the conductive resonator and previous determined characteristics of the rubber product.6. (canceled)7. The system of claim 3 , wherein the resonator identification information includes a location ...

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03-02-2022 дата публикации

Strain wave gear and elastic transmission element therefor, robotic arm and method for arranging a strain gauge

Номер: US20220034392A1
Автор: Damerau Jochen, Heim Jens
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

An elastic transmission element is used in a strain wave gear. Such strain wave gears are also referred to as Harmonic Drives. The elastic transmission element is also referred to as a flexspline. Outer toothing is formed on the elastic transmission element. Furthermore, at least one strain gauge for measuring a mechanical strain of the elastic transmission element is arranged on the elastic transmission element. The at least one strain gauge is formed as a coating directly on a metallic surface of the elastic transmission element. 1. An elastic transmission element of a strain wave gear , wherein an outer toothing is formed on the elastic transmission element , and wherein at least one strain gauge for measuring a mechanical strain of the elastic transmission element is arranged on the elastic transmission element , wherein the at least one strain gauge is formed as a coating directly on a metallic surface of the elastic transmission element.2. The elastic transmission element according to claim 1 , wherein the at least one strain gauge has formed a direct integral connection with the metallic surface of the elastic transmission element.3. The elastic transmission element according to claim 1 , wherein the at least one strain gauge forms a component of a torque sensor and is connected to a measurement signal processing unit of the torque sensor via electrical connections.4. The elastic transmission element according to claim 1 , wherein the at least one strain gauge comprises an electrically insulating layer which is formed as a coating directly on the metallic surface of the elastic transmission element.5. The elastic transmission element according to claim 1 , wherein the at least one strain gauge is applied directly to the metallic surface of the elastic transmission element by a sputter deposition.6. The elastic transmission element according to claim 1 , wherein it has a bushing-shaped portion on which the outer toothing is formed and on which the at least one ...

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03-02-2022 дата публикации

Apparatus and method for determining when to replace a seal component of a seal assembly

Номер: US20220034849A1
Принадлежит: John Crane UK Ltd

A computer implemented method of determining when to replace a seal component of a seal assembly includes obtaining an indication of an accumulation of acoustic emission energy emitted from the seal component over a period of time and determining an estimate of remaining lifetime of the seal component based on the indication.

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19-01-2017 дата публикации

METHOD FOR CONTROLLING CREEP DRIVING OF VEHICLE

Номер: US20170016494A1
Автор: Kim Jin Sung, Nam Ju Hyun
Принадлежит:

A method for controlling creep driving of a vehicle may include determining, by a controller for controlling a dry clutch, whether transfer torque of the dry clutch is 0 or less and a control error resulting from subtraction of a current car speed from a target creep speed is 0 or less, which is referred to as a step of determining condition, and stopping, by the controller, accumulation of an integral control component for creep controlling if the condition in the step of determining condition is met, which is referred to as a step of stopping accumulation. 1. A method for controlling creep driving of a vehicle , the method comprising:determining, by a controller for controlling a dry clutch, whether a transfer torque of the dry clutch is 0 or less and a control error resulting from subtraction of a current car speed from a target creep speed is 0 or less, which is referred to as a step of determining condition, andstopping, by the controller, accumulation of an integral control component for creep controlling when the condition in the step of determining condition is met, which is referred to as a step of stopping accumulation.2. The method of claim 1 , wherein the controller uses information about the transfer torque that the controller itself has and information about a car speed received from outside to perform the step of determining condition and the step of stopping accumulation claim 1 , and feedback controls the dry clutch by creating a creep control signal to instruct a clutch actuator to drive the dry clutch.3. The method of claim 1 , wherein after the step of stopping accumulation begins claim 1 , the controller is further configured to reduce an integral control component of a point right before the step of stopping accumulation begins with a predetermined ratio as time goes by claim 1 , as long as the condition in the step of determining condition is met claim 1 , which is referred to as a step of reducing amount of integration.4. The method of claim ...

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19-01-2017 дата публикации

Two-Wire Hall-Effect Sensor

Номер: US20170016966A1
Принадлежит:

An improved two-wire hall-effect speed sensor circuit includes two separate voltage regulation circuits. The voltage regulator circuits, hall plates, signal processing circuits, and output stage are implemented on an application specific integrated circuit (ASIC). In addition to a supply terminal and a return terminal, the ASIC includes an intermediate terminal. Both voltage regulation circuits may be aided by capacitors, one between the supply terminal and the return terminal, the other between the intermediate terminal and the return terminal. The speed sensor circuit is suitable for use with non-twisted wires, enabling use of a common supply wire for multiple sensors, thus reducing the number of terminals required on the controller and on connectors. 1. A two-wire hall-effect sensor comprising:a supply terminal;a return terminal;an intermediate terminal;a first voltage regulation circuit configured to regulate a voltage difference between the intermediate terminal and the return terminal to a first predetermined value when a voltage difference between the supply terminal and the return terminal exceeds the first predetermined value;a hall plate having a supply port, a return port electrically connected to the return terminal, and an output port;a second voltage regulation circuit configured to regulate a voltage difference between the hall plate supply port and the return terminal to a second predetermined value when a voltage difference between the intermediate terminal and the return terminal exceeds the second predetermined value; andsignal processing and output stage circuits configured to vary an electrical current from the supply terminal to the return terminal in response to changes in the voltage difference between the hall plate output port and the return terminal.2. The sensor of further comprising a first capacitor connected across the intermediate terminal and the return terminal.3. The sensor of further comprising a Zener diode connected across the ...

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18-01-2018 дата публикации

CLUTCH CONTROL METHOD OF VEHICLE

Номер: US20180017112A1
Автор: Kim Jin Sung, Nam Ju Hyun
Принадлежит: HYUNDAI MOTOR COMPANY

A clutch control method of a vehicle may include estimating a change in an input torque supplied by a power source based on an extent to which an acceleration pedal is depressed by the controller; obtaining an additional torque at a level to prevent slippage of a clutch against the input torque estimated in the estimating of a change in input torque by the controller; determining a final clutch control torque for controlling the clutch by adding the additional torque, which is obtained in the obtaining of an additional torque, to the input torque by the controller; and controlling the clutch by operating a clutch actuator with the final clutch control torque determined in the determining of a final clutch control torque by the controller. 1. A clutch control method of a vehicle , the method comprising:estimating a change in an input torque supplied by a power source from a depressed extent of an acceleration pedal by a controller;obtaining an additional torque at a level to prevent slippage of a clutch against the input torque estimated in the estimating of the change in the input torque by the controller;determining a final clutch control torque for controlling the clutch by adding the additional torque, which is obtained in the obtaining of the additional torque, to the input torque by the controller; andcontrolling the clutch by operating a clutch actuator with the final clutch control torque determined in the determining of the final clutch control torque by the controller.2. The method of claim 1 , wherein in the estimating of the input torque claim 1 , the controller obtains an operation variation by differentiating the depressed extent of the acceleration pedal to time claim 1 , obtains a delay operation variation by moving the operation variation by a predetermined time delay on a time axis claim 1 , and obtains a torque response function showing a change in the input torque by filtering the delay operation variation.3. The method of claim 2 , wherein a time ...

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15-01-2015 дата публикации

2-SPEED TRANSMISSION CLUTCH LEARNING SYSTEM FOR HYBRID VEHICLE AND METHOD THEREOF

Номер: US20150019095A1
Принадлежит:

A 2-speed transmission clutch learning method for a hybrid electric vehicle may include detecting whether the 2-speed transmission clutch may be operated through an actuator by driving a motor, learning an open position, a slip position, and a lock-up position of the 2-speed transmission clutch by detecting the amount of driving current and the rotation speed of the motor for the operation of the 2-speed transmission clutch, and storing learning values of the open position, the slip position, and the lock-up position of the 2-speed transmission clutch into a memory area, and controlling the operation of the 2-speed transmission clutch by applying the learning values. 1. A 2-speed transmission 1/2 inside clutch learning system , comprising:a motor;an actuator connected to a rotary shaft of the motor; anda shift controller operating a 2-speed transmission clutch through the actuator by driving the motor,wherein the shift controller learns and stores an open position, a slip position, and a lock-up position of the 2-speed transmission clutch into a memory area when operating the 2-speed transmission clutch by driving the motor, and controls an operation of the 2-speed transmission clutch by applying the learning values.2. The system of claim 1 , wherein the shift controller learns the open position claim 1 , the slip position claim 1 , and the lock-up position of the 2-speed transmission cutch from an amount of current for operating the motor and a rotation speed of the motor.3. The system of claim 1 , wherein the shift controller provides a result of learning the open position claim 1 , the slip position claim 1 , and the lock-up position of the 2-speed transmission clutch to a vehicle controller claim 1 , using CAN communication.4. The system of claim 1 , wherein when the system is initialized by starting-off by an ignition key claim 1 , the shift controller prevents unidentified acceleration in restarting claim 1 , by setting the actuator to a null position.5. The ...

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18-01-2018 дата публикации

BRAKE BEAM FATIGUE TEST STAND

Номер: US20180017465A1
Автор: Jin Xing, LUO YUNKANG
Принадлежит:

The present invention discloses a brake beam fatigue test stand, for simultaneously testing a fatigue strength of two brake beams, comprise: a base, and four upright columns vertical to the base and arranged on the base at intervals; a first tangential load actuator is mounted vertically between the first upright column and the second upright column, with simulated wheels being mounted on a front side and a rear side of a bottom of the actuator; a pressure load actuator is mounted vertically between the second upright column and the third upright column; a second tangential load actuator is mounted vertically between the third upright column and the fourth upright column, with simulated wheels being mounted on a front side and a rear side of a bottom of the actuator; the stiffness of the test stand in vertical and transverse directions is enhanced. 1. A brake beam fatigue test stand , for simultaneously testing a fatigue strength of two brake beams , wherein , comprising: a base , and four upright columns vertical to the base and arranged on the base at intervals; from a left side to a right side of the base successively , there are a first upright column , a second upright column , a third upright column and a fourth upright column , wherein ,a first tangential load actuator capable of applying a tangential load is mounted vertically between the first upright column and the second upright column, with simulated wheels being mounted on a front side and a rear side of a bottom of the first tangential load actuator;a pressure load actuator capable of applying a pressure load is mounted vertically between the second upright column and the third upright column;a second tangential load actuator capable of applying a tangential load is mounted vertically between the third upright column and the fourth upright column, with simulated wheels being mounted on a front side and a rear side of a bottom of the second tangential load actuator; the second tangential load actuator ...

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17-01-2019 дата публикации

TEST PIECE CHARACTERISTIC ESTIMATION METHOD AND TEST PIECE CHARACTERISTIC ESTIMATION DEVICE

Номер: US20190017894A1
Автор: AKIYAMA Takao
Принадлежит:

The purpose of the present invention is to provide a test piece characteristic estimation method capable of quickly measuring the moment of inertia of a test piece while taking loss resulting from rotational friction of the test piece into consideration. This test piece characteristic estimation method is provided with a step (S) for measuring a first transfer function G from a torque current command for a dynamometer to output from a shaft torque sensor by vibrationally operating the dynamometer, a step (S) for measuring a second transfer function G from the torque current command to the output of a dynamo rotation speed sensor by vibrationally operating the dynamometer, and steps (S and S) for calculating the value of a ratio obtained by dividing the second transfer function G by the first transfer function G at a prescribed measurement frequency ωand using the ratio value to calculate a moment of inertia Jeg and a rotational friction Ceg. 1. A test piece characteristic estimation method which uses a test system comprising: a dynamometer joined with a test piece via a connecting shaft; a shaft torque sensor which detects shaft torque generated at the connecting shaft; and a revolution speed detector which detects a revolution speed of an output shaft of the test piece or the dynamometer , the method estimating the moment of inertia with an output shaft of the test piece as a rotation shaft , the method comprising the steps of:measuring a first transfer function from a torque current command relative to the dynamometer until an output of the shaft torque sensor by vibrationally operating the dynamometer;measuring a second transfer function from the torque current command until an output of the revolution speed detector by vibrationally operating the dynamometer; andcalculating values of a real part and an imaginary part at a predetermined measurement frequency of a ratio obtained by dividing the second transfer function by the first transfer function, and ...

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21-01-2021 дата публикации

ENERGY BASED COMPONENT WEAR MODEL FOR CLUTCH CONTROL OFFSETS IN AN AUTOMATIC TRANSMISSION

Номер: US20210018056A1
Принадлежит:

An automatic transmission system of a vehicle and a corresponding adaptation method utilize an automatic transmission comprising a hydraulic friction clutch and a controller configured to continuously perform a feedforward adaptation procedure that models wear of the clutch, the feedforward adaptation procedure comprising obtaining a set of operating parameters each indicative of wear of the clutch, model the wear of the clutch based on the set of operating parameters using a clutch wear model, and determine a clutch offset for controlling application of the clutch based on the modeled clutch wear, and control application of the clutch based on the determined clutch offset. 1. An automatic transmission system for a vehicle , the system comprising:an automatic transmission comprising a hydraulic friction clutch; and [ obtaining a set of operating parameters each indicative of wear of the clutch,', 'modeling the wear of the clutch based on the set of operating parameters using a clutch wear model, and', 'determining a clutch offset for controlling application of the clutch based on the modeled clutch wear; and, 'continuously perform a feedforward adaptation procedure that models wear of the clutch, the feedforward adaptation procedure including, 'control application of the clutch based on the determined clutch offset., 'a controller configured to2. The system of claim 1 , wherein the determined clutch offset is a time offset for a time to apply the clutch.3. The system of claim 1 , wherein the determined clutch offset is a pressure offset for a pressure to be applied to the clutch.4. The system of claim 1 , wherein the modeled clutch wear comprises at least one of a modeled clutch seal wear claim 1 , a modeled clutch frictional material wear claim 1 , and a clutch spring wear.5. The system of claim 4 , wherein at least some of the set of operating parameters are indicative of an energy being input into the clutch.6. The system of claim 5 , wherein the set of operating ...

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16-01-2020 дата публикации

Clutch Stack Wear Sensor System for a Power Transmission Device

Номер: US20200018332A1
Автор: Malloy Ryan J.
Принадлежит:

A power transmission device with a clutch plate wear sensor system includes a power transmission shaft configured to transmit torque and a clutch configured to selectively deliver power into or out of the power transmission shaft. The clutch includes a clutch stack and clutch piston that moves to selectively actuate the clutch stack between an engaged state to deliver power through the clutch and a disengaged state to not deliver power through the clutch. The clutch stack wear sensor system includes at least one detectable element arranged for movement in unison with the clutch piston and a sensor arranged to detect the detectable element and provide a signal indicative of a wear characteristic of the clutch stack. 1. A power transmission device with a clutch stack wear sensor system , comprising:a power transmission shaft that is configured to transmit torque; a clutch stack that defines an engaged state to deliver power through the clutch and a disengaged state to not deliver power through the clutch;', 'a clutch piston that can move to selectively actuate the clutch stack between the engaged and disengaged states; and, 'a clutch that is configured to selectively deliver power into or out of the power transmission shaft, the clutch including 'at least one detectable element arranged for movement in unison with the clutch piston;', 'wherein the clutch stack wear sensor system includesa sensor arranged to detect the detectable element and provide a signal indicative of a wear characteristic of the clutch stack.2. The power transmission device of wherein the detectable element includes a plurality of detectable elements spaced around an outer surface of the clutch piston.3. The power transmission device of wherein at least one of the plurality of detectable elements includes an angled portion to displace the at least one detectable element from a first location to a second location claim 2 , the second location being offset toward an adjacent detectable element.4. ...

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16-01-2020 дата публикации

METHOD OF ANALYZING A VIBRATORY SIGNAL DERIVED FROM ROTATION OF AT LEAST ONE MOVING PART BELONGING TO A ROTARY MECHANISM

Номер: US20200018637A1
Принадлежит: AIRBUS HELICOPTERS

A method of analyzing a vibratory signal derived from rotation of at least one moving part belonging to a rotary mechanism forming all or part of a drive train for transmitting drive torque, the rotary mechanism being fitted to an aircraft and the method comprising at least one first measurement step including measuring vibration in at least one direction and generating a vibratory signal representative of the operation of the rotary mechanism as a function of time, the first measurement step being performed by means of at least one vibration sensor; and at least one second measurement step including measuring an angular position of the moving part, the moving part having at least one degree of freedom to move in rotation about a respective axis of rotation Z. Such an analysis method makes it possible to determine at least one usable range for the vibratory signal. 1. A method of analyzing a vibratory signal derived from rotation of at least one moving part belonging to a rotary mechanism forming all or part of a drive train for transmitting drive torque , the rotary mechanism being fitted to an aircraft and the method comprising:at least one first measurement step including measuring vibration in at least one direction and generating a vibratory signal representative of the operation of the rotary mechanism as a function of time, the first measurement step being performed by means of at least one vibration sensor; andat least one second measurement step including measuring an angular position of the moving part(s), the moving part(s) having at least one degree of freedom to move in rotation about a respective axis of rotation Z, the second measurement step(s) serving to count a determined number n of rotations of the moving part(s) about the respective axis of rotation Z;wherein the method further comprises at least:a preprocessing step for calculating a plurality of arguments of complex numbers generated from complex vibrations of the vibratory signal measured by ...

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17-01-2019 дата публикации

VEHICLE DRIVE TRAIN TEST SYSTEM AND VEHICLE DRIVE TRAIN TEST METHOD

Номер: US20190019357A1
Автор: IKEDA Hiroyuki
Принадлежит: HORIBA, LTD.

The present invention is one that enables an actual vehicle run on a chassis dynamometer to be reproduced in a vehicle drive train test, and includes: a loading device to be connected to a rotating shaft of a vehicle drive train; and a load controller that controls the loading device to change a load. In addition, the load controller includes a relationship data storage part adapted to store speed-load relationship data indicating the relationship between rotation speed of the loading device and a load corresponding to the rotation speed, and changes the timing of the load to be given by the loading device correspondingly to the rotation speed of the loading device with respect to timing determined by the speed-load relationship data. Alternatively, the load controller changes the load correspondingly to the rotation speed of a roller mounted with a tire in the chassis dynamometer. 1. A vehicle drive train test system comprising:a loading device to be connected to a rotating shaft of a vehicle drive train; anda load controller that controls the loading device to change a load, whereinthe load controller includes a relationship data storage part adapted to store speed-load relationship data indicating a relationship between rotation speed of the loading device and a load corresponding to the rotation speed, and changes timing of the load to be given by the loading device correspondingly to the rotation speed of the loading device with respect to timing determined by the speed-load relationship data.2. The vehicle drive train test system according to claim 1 , whereinthe load controller comprises:an operation speed calculation part that, from the rotation speed of the loading device, calculates operation speed simulating rotation speed of a roller; anda load control part that controls the loading device so as to apply a load corresponding to the operation speed to the loading device with use of the speed-load relationship data.3. The vehicle drive system test system ...

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24-01-2019 дата публикации

TORQUE CONTROL SYSTEM AND TORQUE CONTROL METHOD FOR POWER IMPACT TORQUE TOOL

Номер: US20190022836A1
Автор: CHIANG TAI-YUN, CHU YU-WEI
Принадлежит:

In a torque control system and method for power impact torque tool, first establish a curve showing the relationship between the high/low working voltages of the tool in normal operation and the high/low torque values that are correspondingly output by the tool at the high/low working voltages. Input a target torque value that falls between the highest and the lowest torque value on the relationship curve to obtain a working voltage corresponding to the target torque value for performing a tightening operation. During the tightening process, a microprocessor of a torque control device receives and uses sensing signals instantly and continuously sent by a torque sensing device and changes in voltage, current and motor temperature continuously detected by a voltage/current sensing element and a temperature sensing element to stably control, via a voltage control module, the working voltage within a preset allowable range of variation for tightening torque control. 1. A torque control method for power impact torque tool , to be applied to a tightening operation performed using a power impact torque tool or an oil-pulse torque tool , comprising the following steps:connecting a power supply module to a torque control device built in or externally connected to an input end of the power impact torque tool to output a stable working voltage for driving the power impact torque tool and a torque sensing device built in or externally connected to an output end of the power torque tool; driving the power impact torque tool and the torque sensing device using a highest working voltage and a lowest working voltage of the power impact torque tool in normal operation, so as to perform a tightening torque calibration before the tightening operation starts; establishing a correspondence relationship curve of voltage and torque using the highest and lowest working voltages and the corresponding highest and lowest torque values obtained from the calibration operation; based on the ...

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28-01-2016 дата публикации

METHOD FOR DETECTING AND/OR PREVENTING GRIND BURN

Номер: US20160025647A1
Принадлежит:

The present disclosure provides a method of detecting and preventing grind burn from developing on a gear. The method includes performing acoustic emission testing while the gear is being ground during a grinding operation. The grinding wheel is evaluated during an eddy current test to detect material buildup on the grinding wheel which could cause grind burn. In addition, the method includes collecting swarf from the gear during the grinding operation and inspecting the swarf for an indication of grind burn. 1. A method of detecting grind burn on an object being ground , comprising:removing material from an object during a grinding operation;collecting the material from the object with an element during the grinding operation;inspecting the collected material for an indication of grind burn; andinferring grind burn when the indication is a discoloration or change in thickness of the collected material.2. The method of claim 1 , wherein the indication is substantially dark gray claim 1 , blue claim 1 , or black.3. The method of claim 1 , wherein the element comprises filter paper or a magnet.4. The method of claim 3 , further comprising placing filter paper near the object.5. The method of claim 3 , wherein the filter paper is placed substantially beneath the object.6. The method of claim 3 , further comprising aligning the filter paper with the object.7. The method of claim 6 , further comprising correlating the location of the collected material on the filter paper with the location on the object from which the material is removed.8. The method of claim 1 , further comprising using an instrument to inspect the collected material.9. The method of claim 8 , wherein the instrument is a camera or microscope.10. The method of claim 9 , further comprising magnifying the collected material to inspect for the indication.11. The method of claim 1 , further comprising comparing the thickness of the collected material with a threshold thickness.12. The method of claim 1 , ...

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22-01-2015 дата публикации

DRIVING FORCE TRANSMISSION CONTROL SYSTEM

Номер: US20150025763A1
Принадлежит: JTEKT CORPORATION

A driving force transmission control system includes: an electric motor; a multi-disc clutch; a cam mechanism that converts rotation output from the electric motor into cam thrust force that is axial force in the axial direction of the multi-disc clutch; a pressure-conversion mechanism that converts reaction force against the cam thrust force into pressure of a fluid; a pressure sensor that detects the pressure; and a control unit that computes a command value of a current supplied to the electric motor. The control unit stores the pressure of the fluid during disengagement of the multi-disc clutch, and computes the current command value based on the pressure of the fluid to which the reaction force against the cam thrust force has been applied, and the stored pressure of the fluid. 1. A driving force transmission control system comprising:an electric motor;a clutch including an outer friction member and an inner friction member that are disposed on the same axis so as to be rotatable relative to each other and that are frictionally engaged with each other by being pressed in an axial direction of the clutch;an outer rotary member that rotates together with the outer friction member;an inner rotary member that rotates together with the inner friction member;a cam mechanism that receives rotative force from the electric motor to generate cam thrust force for pressing the clutch in the axial direction;a pressure-conversion mechanism that includes a piston that receives reaction force against the cam thrust force from the cam mechanism, and that converts the reaction force into pressure of a fluid in a pressure chamber using the piston;a pressure sensor that detects the pressure of the fluid; anda control unit that computes a command value of a current to be supplied to the electric motor, whereinthe control unit stores the pressure of the fluid during disengagement of the clutch or a correlated value correlated with the pressure of the fluid during disengagement of ...

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10-02-2022 дата публикации

EXTERNAL LOADING TEST APPARATUS

Номер: US20220042878A1

External External loading test apparatus comprising: 1. External loading test apparatus comprising:a structure with at least three pillars supporting a platform, the platform being configured to receive a podded electric propulsion motor in a hanging position while allowing operation of said pod,at least a test subsystem, for applying a force on the pod or pod propeller to simulate full scale external loading.2. The test apparatus of claim 1 , wherein a test subsystem comprises a pod actuator interface claim 1 , an actuator and an actuator structure interface claim 1 , the actuator structure interface comprises a frame intended to be removably fixed to the structure and means forming a rotational joint with the actuator claim 1 , so that the actuator is anchored to the structure while retaining at least one degree of rotation claim 1 , the actuator comprising an actuator body and an actuator rod configured so that the actuator rod extends from or retracts into the actuator body upon command.3. The test apparatus of claim 1 , wherein the pod actuator interface comprises a bore for mating with a pod output shaft on one side and an actuator rotational joint with the actuator rod on the opposite side.4. The test apparatus of claim 3 , wherein a torque measurement device is fitted on a test subsystem claim 3 , the torque measurement device comprises two connecting rods connecting the pod actuator interface to the structure along with force sensors affixed on each connecting rod claim 3 , the torque being determined based on the measured forces claim 3 , the dimensions of the connecting rods and the dimensions of the test apparatus.5. The test apparatus of claim 3 , wherein the force is applied on a direction different from the direction of the pod output shaft.6. The test apparatus of claim 1 , wherein the pod actuator interface comprises a plate fitted with a pod shape compensating element in contact with the pod on one side and a rotational joint with the actuator rod ...

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24-04-2014 дата публикации

Wireless torque measurement system tuning fixture

Номер: US20140109643A1
Принадлежит: Honeywell International Inc

An assembly for use in tuning a wireless torque measurement system includes a support platform, a non-metallic rotor mount structure, a stator mount structure, and an actuator. The non-metallic rotor mount structure is rotationally mounted on the support platform and is configured to rotate about a rotational axis. The actuator is coupled to the support platform and to the stator mount structure, and is configured to selectively move the stator mount structure along a first translational axis that is parallel to the rotational axis.

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24-01-2019 дата публикации

Method of Avoiding Gear Tooth Interference in a Planetary Gear System

Номер: US20190024779A1
Автор: Woods Ron
Принадлежит: Bell Helicopter Textron Inc.

A method of avoiding gear tooth interference in a planetary gear system includes designing and building a planetary gear system comprising a selected base pitch and tooth length for planet gears, breaking a rim of one of the planet gears, and verifying whether tooth tip interference occurs during operation of the planetary gear system. 1. A method of avoiding gear tooth interference in a planetary gear system , comprising:designing and building a planetary gear system comprising a selected base pitch and tooth length for planet gears;breaking a rim of one of the planet gears; andverifying whether tooth tip interference occurs during operation of the planetary gear system.2. The method of claim 1 , wherein the designing and building results in a tangible physical system.3. The method of claim 2 , wherein breaking the rim comprises providing a full angular break in the rim that can allow unfurling of the rim.4. The method of claim 3 , wherein the breaking of the rim comprises sawing the rim using a band saw.5. The method of claim 1 , wherein the designing and building results in computer simulation of the planetary gear system.6. The method of claim 5 , wherein breaking the rim comprises modeling and/or simulating a full angular break in the rim that can allow unfurling of the rim.7. The method of claim 1 , wherein the verifying comprises simulating operation of the planetary gear system.8. The method of claim 1 , wherein the verifying comprises use of a chip detection system.9. The method of claim 1 , wherein the verifying comprises visual inspection.10. A method of avoiding gear tooth interference in a planetary gear system claim 1 , comprising:selecting a base pitch and tooth length for planet gears;determining a change in effective base pitch as a function of an unfurling or deflection of a broken planet gear rim; anddetermining whether the effective base pitch of the broken planet gear can mesh with the ring gear and sun gear without tooth tip interference.11. ...

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24-01-2019 дата публикации

Planet Gear Having Failure Mode Optimized for Continued Planetary Gear System Operation

Номер: US20190024780A1
Принадлежит: Bell Helicopter Textron Inc.

A method of optimizing a planetary gear system for continued operation after failure of a planet gear includes providing a planetary gear system and reducing a backup ratio of a planet gear of the planetary gear system by reducing a rim thickness of the planet gear. 1. A method of optimizing a planetary gear system for continued operation after failure of a planet gear , comprising:providing a planetary gear system; andreducing a backup ratio of a planet gear of the planetary gear system by reducing a rim thickness of the planet gear.2. The method of claim 1 , wherein the backup ratio is reduced to a value associated with a higher probability of planet gear rim breakage than planet gear tooth breakage.3. The method of claim 2 , wherein a rim thickness of the planet gear is smaller than a tooth depth of the planet gear.4. The method of claim 3 , further comprising:increasing a size of a bearing commensurate with a decrease in the rim thickness.5. The method of claim 4 , further comprising:operating the planetary gear system;developing a break in a rim of the planet gear; andcontinuing operation of the planetary gear system while the planet gear rim is broken.6. The method of claim 5 , wherein the broken rim at least partially unfurls during the continued operation of the planetary gear system.7. A method of optimizing a planetary gear system for continued operation aft a failure of a planet gear claim 5 , comprising:providing a planetary gear system;installing a planet gear comprising a backup ratio associated with a higher probability of a rim breakage failure mode as compared to a probability of a gear tooth breakage failure mode.8. The method of claim 7 , further comprising:operating the planetary gear system.9. The method of claim 8 , further comprising:developing a break in a rim of the planet gear.10. The method of claim 9 , further comprising:continuing operation of the planetary gear system while the rim of the planet gear is broken.11. The method of claim 7 ...

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24-01-2019 дата публикации

METHOD AND SYSTEM FOR CONTROLLING A VEHICLE PROPULSION SYSTEM

Номер: US20190024784A1
Принадлежит:

A vehicle propulsion system that includes a prime mover having an output shaft, a torque converter including a compressor coupled to the output shaft of the prime mover, a turbine fluidly coupled to the compressor, and a torque converter clutch for selectively mechanically coupling the compressor to the turbine, a continuously variable transmission (CVT) coupled to the turbine of the torque converter, and a controller that is programmed to receive signals indicating operating conditions of the vehicle propulsion system, determine whether the received signals indicate a reduction in ratio in the CVT is impending, determine whether to open the torque converter clutch based upon a determination that a reduction in ratio is impending, and open the torque converter clutch in response to a determination to open the torque converter clutch. 1. A vehicle propulsion system , the system comprising:a prime mover having an output shaft;a torque converter including a compressor coupled to the output shaft of the prime mover, a turbine fluidly coupled to the compressor, and a torque converter clutch for selectively mechanically coupling the compressor to the turbine;a continuously variable transmission (CVT) coupled to the turbine of the torque converter; and receive signals indicating operating conditions of the vehicle propulsion system;', 'determine whether the received signals indicate a reduction in ratio in the CVT is impending;', 'determine whether to open the torque converter clutch based upon a determination that a reduction in ratio is impending; and', 'open the torque converter clutch in response to a determination to open the torque converter clutch., 'a controller programmed to2. The system of claim 1 , wherein the received signals comprise an accelerator pedal position signal claim 1 , and wherein the controller determines a reduction in ratio is impending based upon the accelerator pedal position signal.3. The system of claim 2 , wherein the controller further ...

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24-01-2019 дата публикации

SENSORIZED MECHANICAL COMPONENT

Номер: US20190025157A1
Автор: Hebrard Yoann
Принадлежит:

A mechanically functional component having at least one sensor arranged to convert one or more physical magnitudes to electrical sensor signals. The sensor includes an electroactive composite deposited directly onto the mechanically functional component and at least one conductive electrode deposited directly on a part of the electroactive composite. 1. An assembly comprising:at least one sensor arranged to convert one or more physical magnitudes to electrical sensor signals, and comprising at least one mechanically functional component, the at least one mechanically functional component having one or more first surface areas related to the function of the at least one mechanically functional component and in addition one or more second surface areas, where at least one sensor comprises:an electroactive composite deposited directly onto a whole of or a part of at least one of the one or more second surface areas in the form of a first layer;at least one conductive electrode deposited directly on a part of the electroactive composite in the form of a second layer.2. The assembly according to claim 1 , where the electroactive composite is subjected to electrical poling during manufacture of the at least one sensor.3. The assembly according any claim 1 , wherein the electroactive composite is a mix of a liquid matrix and submicro or nano particles.4. The assembly according to claim 3 , wherein the liquid matrix is a polyurethane with high dielectric properties.5. The assembly according to wherein the submicro or nano particles are ferroelectric particles.6. The assembly according to claim 5 , wherein the ferroelectric particles are barium titanate particles.7. The assembly according to claim 1 , wherein the conductive electrode is piezoresistive composite.8. The assembly according to claim 7 , wherein the piezoresistive composite is polymer matrix comprising conductive particles.9. The assembly according to claim 1 , further comprising at least one conductive electrode ...

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23-01-2020 дата публикации

METHOD FOR DISCONNECTING A VALVE UNIT FROM A PNEUMATICALLY CONTROLLED ACTUATOR ARRANGEMENT

Номер: US20200025265A1
Автор: Hedman Anders
Принадлежит:

The present invention relates to a method for disconnecting a valve unit () from a pneumatically controlled actuator arrangement () of a vehicle transmission (), said transmission comprising at least one clutch arrangement (), a pneumatically controlled actuator arrangement () arranged to controllably position the at least one clutch arrangement between a closed position and an opened position, and a valve unit () mechanically connected to the pneumatically controlled actuator arrangement (), the method comprising the steps of positioning (S) the valve unit () in an opened state for providing compressed air to the pneumatically controlled actuator arrangement (); and subsequently disconnecting (S) the valve unit () from the pneumatically controlled actuator arrangement (). 116.-. (canceled)17302208210100202204208210302208210302208210312. A method for disconnecting a valve unit () from a pneumatically controlled actuator arrangement ( , ) of a vehicle transmission () , said transmission comprising at least one clutch arrangement ( , ) , a pneumatically controlled actuator arrangement ( , ) arranged to controllably position the at least one clutch arrangement between a closed position and an opened position , and a valve unit () mechanically connected to the pneumatically controlled actuator arrangement ( , ) , wherein the valve unit () and the pneumatically controlled actuator arrangement ( , ) are connected to each other at an actuator interface () , the method being characterized by the steps of:{'b': 1', '302', '208', '210, 'positioning (S) the valve unit () in an opened state for providing compressed air to the pneumatically controlled actuator arrangement (, ); and subsequently'}{'b': 4', '312', '304', '208', '210', '312, 'disconnecting (S), when an air pressure level at a position inside and in the vicinity of the actuator interface () exceeds a predetermined threshold limit higher than atmospheric pressure, the valve unit () from the pneumatically controlled ...

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23-01-2020 дата публикации

CONDITION MONITORING SYSTEM AND WIND TURBINE

Номер: US20200025648A1
Автор: HASEBA Takashi
Принадлежит:

A vibration sensor measures a vibration waveform of a mechanical component. A processor detects a change in the vibration waveform. The processor includes an evaluation value computing unit and a detector. The evaluation value computing unit time-sequentially computes an evaluation value that characterizes a root-mean-square value of vibration waveform data output from the vibration sensor within a prescribed time period. The detector detects a change in the vibration waveform based on the evaluation value. The evaluation value computing unit computes, as the evaluation value, a value based on kurtosis and skewness of a distribution of the root-mean-square value within the prescribed time period. 1. A condition monitoring system configured to monitor a condition of a mechanical component in an apparatus , the condition monitoring system comprising:a vibration sensor configured to measure a vibration waveform of the mechanical component; anda processor configured to detect a change in the vibration waveform, an evaluation value computing unit configured to time-sequentially compute an evaluation value that characterizes a root-mean-square value of vibration waveform data output from the vibration sensor within a prescribed time period, and', 'a detector configured to detect a change in the vibration waveform based on transition of the evaluation value,, 'the processor including'}the evaluation value computing unit being configured to compute, as the evaluation value, a value based on kurtosis and skewness of a distribution of the root-mean-square value within the prescribed time period.2. The condition monitoring system according to claim 1 , wherein the evaluation value computing unit is configured to compute claim 1 , as the evaluation value claim 1 , an absolute value of a product of kurtosis and skewness of the distribution of the root-mean-square value within the prescribed time period.3. The condition monitoring system according to claim 1 , wherein the ...

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