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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 3727. Отображено 100.
11-10-2017 дата публикации

Шаровой кран воздушной магистрали железнодорожного подвижного состава

Номер: RU0000174338U1
Автор: Алексей Николаевич Фокин, Илья Александрович Колеватых, Сергей Васильевич Комогоров, Юрий Николаевич Соронин
Принадлежит: Акционерное общество "Ритм" Тверское производство тормозной аппаратуры (АО "Ритм" ТПТА)

Полезная модель относится к унифицированным с серийно выпускаемыми элементам пневматических систем тормозного оборудования подвижного состава рельсового транспорта (железнодорожного, метрополитена, трамваев), в частности к шаровым кранам воздушной магистрали, и может быть использована для перекрытия воздушных магистралей, а также подключения (отключения) пневматических приборов тормозных систем отдельной единицы подвижного состава. Шаровой кран воздушной магистрали подвижного состава содержит корпус 1 с входным 2 и выходным 3 отверстиями, которые перекрываются установленной между двумя уплотнительными кольцами 5 и 6, выполненными из термопластичного полиуретанового эластомера марки Р5009, шаровой заслонкой 7 со сквозным переходным каналом 8, и ручной привод 9, выполненный в виде сопряженного с шаровой заслонкой 7 шпинделя 10 и закрепленной на нем рукояткой 11. Применение полезной модели позволяет повысить межремонтный срок эксплуатации шарового крана воздушной магистрали железнодорожного подвижного состава. 9 з.п. ф-лы, 2 ил. Ц 1 174338 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (110) а < & < < 5 (13) (51) МПК ВбОТ 1704 (2006.01) Е16К 5/04 (2006.01) Е16К 5/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2017102255, 24.01.2017 (24) Дата начала отсчета срока действия патента: 24.01.2017 Дата регистрации: 11.10.2017 Приоритет(ы): (22) Дата подачи заявки: 24.01.2017 (45) Опубликовано: 11.10.2017 Бюл. № 29 Адрес для переписки: 170040, г. Тверь, пр-кт 50 лет Октября, 45, АО "Ритм" ТПТА (72) Автор(ы): Комогоров Сергей Васильевич (КП), Фокин Алексей Николаевич (КП), Соронин Юрий Николаевич (КО), Колеватых Илья Александрович (КО) (73) Патентообладатель(и): Акционерное общество "Ритм" Тверское производство тормозной аппаратуры (АО "Ритм" ТПТА) (КО) (56) Список документов, цитированных в отчете о поиске: ВО 62565 01, 27.04.2007. ВО 22646 1, 20.04.2002. 0$ 4673475 А, 14.11.1978. ГР Н11304020 А, 05.11.1999. (54) ...

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Номер записи: 1
11-12-2019 дата публикации

Привод разобщительного крана тормозной системы железнодорожного вагона

Номер: RU0000194471U1
Автор: Александр Леонидович Ковязин, Анна Михайловна Орлова, Константин Николаевич Болотов, Роман Александрович Савушкин
Принадлежит: Общество с ограниченной ответственностью &#34;Всесоюзный научно-исследовательский центр транспортных технологий&#34;

Настоящая полезная модель относится к железнодорожному транспорту, в частности к устройству тормозных систем грузовых вагонов. Предлагаемый привод разобщительного крана тормозной системы железнодорожного вагона содержит приводную рукоятку разобщительного крана, которая снабжена промежуточным соединительным пальцем, который размещен с возможностью скользящего перемещения в направляющем пазу поворотного рычага, перпендикулярно закрепленного на приводном поперечном валу, который своими концами установлен с возможностью поворота в несущих кронштейнах, закрепленных по боковым сторонам железнодорожного вагона. Технический результат, обеспечиваемый полезной моделью, заключается в упрощении технического обслуживания подвижного состава, а также в повышении безопасности работ, проводимых обслуживающим персоналом. 2 з.п. ф-лы, 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 194 471 U1 (51) МПК B60T 17/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК B60T 17/04 (2019.08) (21)(22) Заявка: 2019118710, 17.06.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 11.12.2019 (45) Опубликовано: 11.12.2019 Бюл. № 35 (56) Список документов, цитированных в отчете о поиске: RU 2400382 C2, 27.09.2010. RU 2360810 C2, 10.07.2009. RU 2297560 C1, 20.04.2007. 1 9 4 4 7 1 R U (54) ПРИВОД РАЗОБЩИТЕЛЬНОГО КРАНА ТОРМОЗНОЙ СИСТЕМЫ ЖЕЛЕЗНОДОРОЖНОГО ВАГОНА (57) Реферат: Настоящая полезная модель относится к перпендикулярно закрепленного на приводном железнодорожному транспорту, в частности к поперечном валу, который своими концами устройству тормозных систем грузовых вагонов. установлен с возможностью поворота в несущих Предлагаемый привод разобщительного крана кронштейнах, закрепленных по боковым тормозной системы железнодорожного вагона сторонам железнодорожного вагона. Технический содержит приводную рукоятку разобщительного результат, обеспечиваемый полезной моделью, крана, которая снабжена промежуточным заключается в ...

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Номер записи: 2
26-01-2012 дата публикации

Electromagnetic valve

Номер: US20120018655A1
Автор: Motokazu ISHIKAWA, Yuuji Yabuki
Принадлежит: Advics Co Ltd, Denso Corp

A conical portion is provided at the tip of a main valve body. When brake fluid hits the conical portion of the main valve body, the brake fluid is bounced back at substantially the same angle at which it hits the conical surface of the conical portion. However, the movement direction of the bounced brake fluid is not largely inclined from the direction that the brake fluid is to be caused to flow. Therefore, the flow resistance is reduced. Further, generatrices of the conical portion agree with tangent lines to the spherical surface and the boundary area between the spherical surface and the conical surface is continuous without a step. Therefore, the brake fluid is rectified by these surfaces when it flows. It is possible to reduce the amount of fluctuation in pressure differential relative to fluctuation in the flow rate of brake fluid.

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Номер записи: 3
12-07-2012 дата публикации

Pressure control valve arrangement having an eccentrically mounted double magnet

Номер: US20120175943A1
Автор: Dirk Brenner, Harald Jaehns, Jan Grebe, Jochen Weippert, Wolfgang Rohn
Принадлежит: Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH

A pressure control valve arrangement is described for controlling the fluid pressure in an ABS brake system of a vehicle so that, during a tendency of individual wheels of the vehicle to lock, the brake pressure in at least one assigned brake cylinder can be matched adaptively, a) two diaphragm valves and two electromagnetic control valves, activatable by an electronic control device, for the pilot control of the diaphragm valves being provided in the housing of the pressure control valve arrangement, b) the two electro-magnetic control valves having a double magnet with two magnet coils and also magnet armatures cooperating with solenoid valve seats and actuable by current being applied to the magnet coils, c) the housing having at least one pressure medium connection, connected to a service brake valve, for acting with pressure upon and/or relieving the pressure of the pressure control valve arrangement and also at least one working connection for connecting to the brake cylinder, characterized in that d) a plane of symmetry of the mid-axes of the magnet coils of the double magnet of the electromagnetic control valves is arranged parallel, and offset by the amount of an eccentricity, with respect to a mid-axis of the pressure medium connection.

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Номер записи: 4
30-08-2012 дата публикации

Traction-slip controlled brake system of a motor vehicle approaching stops

Номер: US20120217794A1
Автор: Gerhard Wieder, Péter Holobrádi
Принадлежит: Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH

A traction-slip controlled vehicle brake system having a) a service-brake valve, which generates an actuation-dependent pressure at an outlet port; b) a valve device, in a first operating position, establishes a connection from a pressure medium reserve and, in a second operating position, from a 2/2 solenoid valve to a brake actuator; c) the solenoid valve being connected to the outlet port of the service-brake valve and to a first connection of the valve device. The solenoid valve and valve device are controllable by a control device to d) allow the solenoid valve to switch open and the valve device to switch to the first operating position for traction-slip control; e) and a brake pressure generated at a predetermined level based on the pressure medium from the pressure medium supply in the brake actuator; the solenoid valve being switched closed and the valve device to the first operating position.

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Номер записи: 5
01-11-2012 дата публикации

Solenoid Valve for Controlling a Fluid

Номер: US20120273707A1
Автор: Carsten Bodmann, Elmar Vier, Stephan Steingass
Принадлежит: ROBERT BOSCH GMBH

A solenoid valve for controlling a fluid comprising an armature, a valve member which has a dome-shaped end region and which is connected to the a mature and is movable jointly with the armature, a first guidance region being provided on the armature, and a valve body with a valve seat, with a through orifice, the valve member opening and closing the through orifice on the valve seat, and with a guide element which defines a second guidance region for guiding the valve member and which guides the valve member when the solenoid valve is open, the guide element being formed in one piece with the valve body.

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Номер записи: 6
06-06-2013 дата публикации

TRAIN BRAKE AND HAND BRAKE RELEASE SYSTEMS, AND RELATED METHODS

Номер: US20130140880A1
Автор: Barefoot Richard
Принадлежит:

Train brake systems, hand brake release systems and related methods are provided. The brake system can include a hand brake release system that can automatically releasing a hand brake on a railway car. A differential value can be used to measuring an air pressure differential between an air pressure in a train line of a train and an air pressure on a brake cylinder of the railway car to determine if air should transfer from the emergency reservoir to assure the hand brake is released. A hand brake position valve can be used to determine whether the hand brake is applied or released. The air from the emergency reservoir can then be directed within a motion detector valve to assure that the hand brake us released. 1. A method for automatically releasing a hand brake on a railway car , the method comprising:measuring an air pressure differential between an air pressure in a train line of a train and an air pressure on a brake cylinder of the railway car to determine if air should transfer from an emergency reservoir of a train brake system to assure the hand brake is released;determining whether the hand brake is applied or released using a hand brake position valve; anddirecting the air from the emergency reservoir within a motion detector device to assure that the hand brake is released.2. The method according to claim 1 , wherein the determining whether the hand brake is applied or released further comprises directing the air from the emergency reservoir to locking spools of the motion detector device to release the hand brake.3. The method according to claim 1 , further comprising indicating that the brake is released and the train is ready to depart if the air from the emergency reservoir has been directed to the locking spools.4. The method according to claim 1 , wherein the determining whether the hand brake is applied or released further comprises directing the air from the emergency reservoir to a center port of the motion detector device.5. The method ...

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Номер записи: 7
01-08-2013 дата публикации

CHECK VALVE AND BRAKING SYSTEM USING THE SAME

Номер: US20130193748A1
Автор: Kajita Hidenobu, Omi Masaaki
Принадлежит:

In a check valve in which a valve part is disposed in a valve part accommodating recess movably relative to a piston part, among the valve part accommodating recess, an anti-valve seat side accommodation space formed between a surface of the valve part accommodating recess in an anti-valve seat side of the valve part and a wall surface of the valve part accommodating recess are communicated to exit side fluid passages. 1. A check valve comprising:a case member having an entrance-side fluid passage where fluid flows in, an exit-side fluid passage where fluid flows out, and a valve seat disposed in a downstream end of the entrance-side fluid passage;a valve member that opens and closes a passage between the entrance-side fluid passage and the exit-side fluid passages by touching and separating to the valve seat, and is energized in a valve opening direction by a pressure of the fluid from the entrance-side fluid passage; anda spring that energizes the valve member in a valve closing direction; wherein,the check valve opens when the energization force in the valve opening direction due to the pressure exceeds the energization force in the valve closing direction due to the spring; wherein,the valve member has a piston part that reciprocates, and a valve part that is disposed in the valve seat side and touches and separates to the valve seat;the case member has a piston accommodation cylinder part that accommodates the piston part reciprocatably;the piston part has a valve part accommodating recess that accommodates a part of the valve part;the valve part is disposed in the valve part accommodating recess movably relative to the piston part, and is urged against a wall surface of the valve part accommodating recess by a pressure of the fluid from the entrance-side fluid passage; and{'b': '441', 'among the valve part accommodating recess, an anti-valve seat side accommodation space formed between a surface in an anti-valve seat side of the valve part and a wall surface ...

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Номер записи: 8
26-09-2013 дата публикации

Railroad control valve

Номер: US20130248031A1
Автор: David J. Meyer, Gary M. Sich, Jeffrey B. Skweres, Michael S. Plechey
Принадлежит: Wabtec Holding Corp

A service portion of a rail control valve includes a body defining a piston passageway, an inshot valve passageway, and a service accelerated release valve passageway. An inshot valve is received by the inshot valve passageway of the body and a service accelerated release valve is received by the service accelerated release valve passageway.

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Номер записи: 9
10-10-2013 дата публикации

VALVE ASSEMBLY

Номер: US20130263953A1
Автор: Potter Laurence John, Prescott Robert David, Shaw Edward Gilbert
Принадлежит: HALDEX BRAKE PRODUCTS LIMITED, LC OF UK

A valve assembly () having a housing () into which are provided a first port (), a second port () and a third port (), and in which are located a first movable member (), a second movable member () and a third movable member (), the first movable member () being movable between a first position which causes the second movable member () to close the first port () to prevent any substantial flow of fluid through the first port (), whilst the second () and third () ports remain open, a second position which causes the third movable member () to close the third port () to prevent any substantial flow of fluid through the third port (), whilst the first () and second () ports remain open and flow of fluid between the first () and the second () part is permitted, and a third position which causes the second movable member () to close the first port () and the third movable member () to close the third port () to prevent any substantial flow of fluid through either the first port () or the third port (), wherein the second movable member () and the third movable member () are separate such that relative movement between the second movable member () and the third movable member () is permitted. 1. A valve assembly having a housing into which are provided a first port , a second port and a third port , and in which are located a first movable member , a second movable member and a third movable member , the first movable member being movable between a first position which causes the second movable member to close the first port to prevent any substantial flow of fluid through the first port , whilst the second and third ports remain open and flow of fluid between the second and third ports is permitted , a second position which causes the third movable member to close the third port to prevent any substantial flow of fluid through the third port , whilst the first and second ports remain open and flow of fluid between the first and second port is permitted , and a third ...

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Номер записи: 10
17-10-2013 дата публикации

PRESSURE DAMPING DEVICE FOR BRAKE SYSTEM

Номер: US20130269815A1
Автор: Lee Chung Jae
Принадлежит:

There is provided a pressure damping device for a brake system. According to an embodiment of the present invention, an air damping space whose volume is changed in accordance with pressure is provided in an oil passage for connecting two hydraulic circuits, thereby reducing a pressure pulsation generated by a liquid pressure. 1. A pressure damping device for a brake system that is provided in an oil passage of a hydraulic block so as to connect first and second hydraulic circuits for respectively controlling a liquid pressure transmitted to two wheels , the pressure damping device comprising:a cylindrical housing that is fixed to the oil passage includes a first liquid pressure hole and a second liquid pressure hole respectively communicating with main oil passages of the first and second hydraulic circuits, and is opened on one side thereof;a lid member that is coupled so as to close the opened one side of the housing;a first piston that includes a flange portion in contact with an inner circumferential surface of the housing and a pressing portion extending from a center of the flange portion to one side of the housing, and moves forward and backward within the housing;a second piston that includes a flange portion in contact with the inner circumferential surface of the housing and a pressing portion extending from the center of the flange portion to the other side of the housing, and moves forward and backward within the housing while being spaced apart from the first piston by a predetermined interval;a spring that is interposed between the first and second pistons to provide an elastic force to the first and second pistons; anda damping member that is provided so as to surround an outer circumferential surface of the pressing portion of each of the first and second pistons,wherein an air damping space whose volume is changed in accordance with a pressure of the liquid pressure when a space between the first and second pistons is sealed is formed between the ...

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Номер записи: 11
17-10-2013 дата публикации

PRESSURE DAMPING DEVICE FOR BRAKE SYSTEM

Номер: US20130269816A1
Автор: Lee Chung Jae
Принадлежит:

There is provided a pressure damping device for a brake system. The damping device includes a cylindrical housing that is fixed to the oil passage, includes a first liquid pressure hole and a second liquid pressure hole respectively communicating with a main oil passage of the first and second hydraulic circuits, and is opened on one side thereof, a lid member that is coupled so as to close the opened one side of the housing, first and second pistons that are spaced apart from each other and move forward and backward within the housing, and a spring that is interposed between the first and second pistons to provide an elastic force to the first and second pistons. Here, a sealing member is provided on an outer circumferential surface of each piston so that a space between the first and second pistons is sealed, and an air damping space whose volume is changed in accordance with a pressure of a liquid pressure is provided between the first and second pistons. 1. A pressure damping device for a brake system that is provided in an oil passage of a hydraulic block so as to connect first and second hydraulic circuits for respectively controlling a liquid pressure transmitted to two vehicle wheels , the pressure damping device comprising:a cylindrical housing that is fixed to the oil passage, includes a first liquid pressure hole and a second liquid pressure hole respectively communicating with a main oil passage of the first and second hydraulic circuits, and is opened on one side thereof;a lid member that is coupled so as to close the opened one side of the housing;first and second pistons that are spaced apart from each other and move forward and backward within the housing; anda spring that is interposed between the first and second pistons to provide an elastic force to the first and second pistons,wherein a sealing member is provided on an outer circumferential surface of each piston so that a space between the first and second pistons is sealed, and an air damping ...

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Номер записи: 12
24-10-2013 дата публикации

Hydraulic Block for a Hydraulic Multi-Circuit Vehicle Braking System

Номер: US20130276442A1
Автор: Kunz Michael, Schlotter Volkmar, Schmautz Oliver
Принадлежит: ROBERT BOSCH GMBH

A hydraulic block of a hydraulic multi-circuit vehicle braking system having braking force regulation includes an installation space for a hydraulic reservoir of the vehicle braking system that is isolated from a braking circuit, for example by closing a connecting line using a pressed-in ball. The installation space is connected to another braking circuit via an additional bore, wherein a larger storage volume is available to the braking circuit as a result. The necessary changes to the hydraulic block are small. 1. A hydraulic block for a hydraulic multi-circuit vehicle brake system , wherein the hydraulic block defines at least two installation spaces configured to accommodate hydraulic reservoirs , and wherein the at least two installation spaces are in fluid communication with a brake circuit.2. The hydraulic block as claimed in claim 1 , wherein the at least two installation spaces are in fluid communication with one another.3. The hydraulic block as claimed in claim 1 , further comprising:a closed connection line associated with one installation space connecting to one brake circuit,wherein the at least two installation spaces are in fluid communication with another brake circuit. The invention relates to a hydraulic block for a hydraulic multi-circuit vehicle brake system having the features of the preamble of claim .Such hydraulic blocks are customary in modern hydraulic vehicle brake systems with braking force control. The braking force can take place there on a wheel-specific basis, on an axis-specific basis, for groups of vehicle wheels or jointly for all the vehicle wheels which can be braked. Examples of braking force control systems are an anti-lock brake control system (ABS), a traction control system (TCS) and/or an anti-skid or vehicle movement dynamics control system (ESP). Electro-hydraulic vehicle brake systems also have braking force control. Electro-hydraulic vehicle brake systems are extraneous force braking systems in which a hydraulic brake ...

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Номер записи: 13
07-11-2013 дата публикации

Actuating device, method for operating an actuating device, and solenoid valve arrangement

Номер: US20130291535A1
Автор: Carsten Hecker, Heinz Leiber
Принадлежит: IPGATE AG

The invention relates to an actuating device, in particular for a vehicle brake, wherein hydraulic fluid is supplied to an actuator, in particular a wheel brake, from a piston-cylinder unit via a first hydraulic connection and a solenoid valve. According to the invention, it is provided that a further hydraulic connection connects the piston-cylinder unit to a hydraulic liquid container, and in that a solenoid valve device is arranged in this connection, which solenoid valve has at least two valves which are effective in different flow directions.

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Номер записи: 14
19-12-2013 дата публикации

Compressed-Air Supply Device for Commercial Vehicles

Номер: US20130333782A1
Автор: Balogh Levente, Krabot Matyas, SCHNITTGER Karsten
Принадлежит: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH

A compressed-air supply device for commercial vehicles is provided. The compressed-air supply device may be connected electrically to an electronic control device that may actuate at least one control valve. The control valve has at least one inlet, one ventilating connection and one outlet. The compressed-air supply device has a control line which is connected to the control valve outlet and may be connected to a control inlet of a compressor and/or an inlet of a regeneration valve, has a supply line via which compressed air may be guided to the control valve inlet, and has a ventilating line connected to the control valve ventilating connection. The control valve may be ventilated via the ventilating line, and is configured such that at a predefined opening pressure in the supply line it pneumatically produces a fluid-conducting connection between the inlet and the outlet such that the control line is ventilated. 1. A compressed-air supply device for commercial vehicles which is electrically connectable to an electronic control device , comprising:at least one control valve actuable by the electronic control device, the control valve having at least one inlet connection, one venting connection and one outlet connection;a control line connected to the control valve outlet connection, the control line being connectable to at least one of a control inlet of a compressor and an inlet of a regeneration valve;a supply line arranged to supply compressed air to the control valve inlet connection;a venting line arranged to vent the control valve from the control valve venting connection;wherein the control valve is configured to provide a fluid-conducting connection between the control valve inlet connection and the control valve outlet connection when a predetermined opening pressure is present in the supply line.2. The compressed-air supply device as claimed in claim 1 , wherein a venting flow cross section in a flow path of venting the control valve is smaller than a ...

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Номер записи: 15
09-01-2014 дата публикации

Control valve having a device for generating defined braking and release times

Номер: US20140007952A1
Автор: Christian Krauth
Принадлежит: Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH

A control valve for an indirectly acting compressed-air brake of a rail vehicle includes a pneumatic relay valve for controlling a brake cylinder pressure via a pilot-control circuit for generating a temporally defined pilot-control pressure for the proportional activation of the relay valve, wherein, connected upstream of the pilot-control circuit, there is provided a device for generating the braking and release times of the compressed-air brake, wherein the device for generating uniform braking and release times of the compressed-air brake has mechanisms for realizing a volume flow with constant pressure change for the compressed-air supply and the de-aeration of the pilot-control circuit.

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Номер записи: 16
09-01-2014 дата публикации

BRAKE DEVICE FOR VEHICLE

Номер: US20140008966A1
Автор: HOTANI Yuki, ITO Yuki, Ohkubo Naoto
Принадлежит: HONDA MOTOR CO., LTD.

A brake device for a vehicle is provided in which when there is an abnormality in which a slave cylinder becomes incapable of being actuated, a wheel cylinder is actuated by means of a brake fluid pressure generated by a master cylinder, which is actuated by a brake pedal. Since idling detection means detects idling of a motor when the rotational speed of the motor is greater than a reference value that is set according to the stroke of the slave cylinder, it is possible to reliably and rapidly detect idling of the motor. When the idling of the motor is detected, since control means opens a master cut valve and the wheel cylinder is actuated by means of the brake fluid pressure generated by the master cylinder, the slave cylinder, which has become incapable of being actuated, can be backed up rapidly by the master cylinder. 1. A brake device for a vehicle , said brake device comprising{'b': 11', '12, 'a master cylinder () that generates a brake fluid pressure by operation of a brake pedal (),'}{'b': 35', '12, 'a stroke simulator () that imparts a reaction force to the operation of the brake pedal (),'}{'b': 26', '27', '30', '31, 'a wheel cylinder (, , , ) that brakes a wheel,'}{'b': 32', '33', '11', '26', '27', '30', '31, 'a master cut valve (, ) that is capable of blocking a fluid path providing a connection between the master cylinder () and the wheel cylinder (, , , ),'}{'b': 42', '32', '33', '26', '27', '30', '31', '12, 'a slave cylinder () that is disposed between the master cut valve (, ) and the wheel cylinder (, , , ) and generates a brake fluid pressure that is commensurate with the operation of the brake pedal (),'}{'b': 12', '32', '33', '42', '35, 'a control unit (U) that, when the brake pedal () is operated, closes the master cut valve (, ) and actuates the slave cylinder () in a state in which the stroke simulator () is capable of being actuated, and'}{'b': 1', '44', '42, 'an idling detection unit (M) that detects idling of a motor () of the slave ...

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Номер записи: 17
16-01-2014 дата публикации

Valve for Controlling Fluids

Номер: US20140014869A1
Автор: Fink Reinhard, Foerch Dirk, Weitze Thomas
Принадлежит: ROBERT BOSCH GMBH

The disclosure relates to a valve for controlling fluids, including a valve body defining a passage opening, a tapering valve seat formed on the valve body, a closing element configured to open up and to close off the passage opening at the tapering valve seat, and a protruding region adjoining the tapering valve seat. The protruding region extends over only part of a circumference of the tapering valve seat. 1. A valve for controlling fluids , comprising:a valve body defining a passage opening;a tapering valve seat formed on the valve body;a closing element configured to open and to close the passage opening on the tapering valve seat; anda protruding area adjoining the tapering valve seat,wherein the protruding area only extends over part of a circumference of the tapering valve seat.2. The valve as claimed in claim 1 , wherein the protruding area is integrally formed with the tapering valve seat.3. The valve as claimed in claim 1 , wherein:the protruding area includes a castellated formation structure having a plurality of elements configured to protrude in a lifting direction of the closing element, andthe elements of the plurality of elements are separated from one another by a plurality of spaces.4. The valve as claimed in claim 3 , wherein:the spaces of the plurality of spaces each define a first arc length in a circumferential direction,the elements of the plurality of elements define a second arc length in the circumferential direction, andthe first arc length is the same as the second arc length.5. The valve as claimed in claim 1 , wherein the protruding area is only formed on less than one half of the circumference of the tapering valve seat and more than a third of the circumference of the tapering valve seat.6. The valve as claimed in claim 1 , wherein:the protruding area defines a length in a lifting direction of the closing element, andthe length in the lifting direction of the closing element is greater than a lift of the closing element.7. The valve ...

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Номер записи: 18
30-01-2014 дата публикации

Magnet valve for controlling a fluid

Номер: US20140027658A1
Автор: Andreas Karl, Elmar Vier, Massimiliano Ambrosi
Принадлежит: ROBERT BOSCH GMBH

A magnet valve configured to control a fluid includes an armature with a base region, a casing region, and a head region. The magnet valve also includes a valve element that is connected to the armature and an armature housing component. A flow path is formed between the armature and the armature housing component. The flow path runs from a lower armature chamber to an upper armature chamber and back to the lower armature chamber. The head region of the armature has a flattened section, and the upper armature chamber is defined between the armature housing component and the flattened section. At least one groove is formed on the casing region of the armature starting from the base region. The at least one groove ends in the casing region before the flattened section of the head region.

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Номер записи: 19
13-02-2014 дата публикации

ACTUATOR FOR A BRAKE SYSTEM OF A RAIL VEHICLE

Номер: US20140046514A1
Автор: Jennek Steffen, Schiffers Toni, Wiesand Manfred
Принадлежит:

An actuator for a brake system of a rail vehicle has a set-value detection unit that outputs a set value or a set value corrected by a reducing signal of an anti-skid control device for a decelerating force or a decelerating torque to a set-value control device. The latter controls the set value to a first output set value. A switch-over device connects an output of the set-value control device to a input of a set-value/force conversion device in a first switching position. In a second switching position, the set-value/force conversion device receives the signal from a fall-back unit. Braking devices convert an actual value of the force into an actual value of the decelerating force or decelerating torque. When impermissible deviations from a fast braking set value in a fast-braking operation are found, the switch-over device switches from the first to the second switching position. 15-. (canceled)6. An actuator for a brake system of a rail vehicle , the actuator comprising:a set value detection unit and a set value control device;said set value detection unit having an output carrying a set value or a set value adjusted under a influence of a reducing signal of an anti-skid protection control device for a decelerating force to be controlled or a decelerating torque to be controlled, said set value detection unit transmitting the set value to an input of said set value control device;said set value control device closed-loop controlling the set value received from said set value detection unit to a first output set value;a fall-back unit configured to provide a pre-defined second output set value;a set value/force conversion device having an input;a switch-over device connecting an output of said set value control device to said input of said set value/force conversion device in a first switching position so that the first output set value is present at said input of said set value/force conversion device, and connecting an output of said fall-back unit to said ...

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Номер записи: 20
27-03-2014 дата публикации

Control device for a brake system of a vehicle, and method for operating a brake system of a vehicle

Номер: US20140084675A1
Автор: Bruex Thomas, Schmieg Benno
Принадлежит: ROBERT BOSCH GMBH

A control device for a vehicle brake system, having a control device/arrangement by which a closing signal is outputtable to an isolation valve via which a first brake circuit is hydraulically connected to a main brake cylinder, and at least one first control signal is outputtable to at least one first hydraulic component, so that a first actual brake pressure in the first brake circuit can be varied, an existing functional impairment of the at least one first hydraulic component and/or of at least one further brake system component being determinable, or a warning signal being receivable, and, if warranted, a closing signal being outputtable to a changeover valve of a second brake circuit, and, after or simultaneously with an outputting of the closing signal to the changeover valve, an opening signal being outputtable to the isolation valve. Also described is a related method for operating the vehicle brake system. 1. A control device for a brake system of a vehicle , comprising:a control arrangement by which, taking into account a provided specification quantity relating to at least one target brake pressure that is to be set in a first brake circuit of the brake system, a closing signal can be output to an isolation valve via which the first brake circuit is hydraulically connected to a main brake cylinder of the brake system, and at least one first control signal can be output to at least one first hydraulic component of the brake system, so that the isolation valve controlled by the closing signal is controllable into its closed state, and a first actual brake pressure present in the first brake circuit can be varied by the at least one first hydraulic component controlled by the at least one first control signal;wherein the control arrangement is configured to determine an existing functional impairment of at least one of (i) the at least one first hydraulic component, and (ii) at least one other brake system component of the brake system, or to receive a ...

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Номер записи: 21
05-01-2017 дата публикации

PERMANENT MAGNET TYPE ELECTROMAGNETIC BRAKING CYLINDER

Номер: US20170001616A1
Автор: JU Sung-Ho, KWON Min-Jung, YOU Kyoung-Cheon, YOUN Suk-Soon
Принадлежит: MIKTECH CO., LTD.

An electromagnetic braking cylinder includes a cylinder part, a piston part and an electromagnetic force generating part. The cylinder part includes first and second surfaces and an extending portion. The first and second surfaces face each other and form a first receiving space. The extending portion vertically extends from the second surface and forms a second receiving space. The piston part is received inside of the first and second receiving spaces, and moves back and forth along the extending part. The electromagnetic force generating part includes first and second electromagnetic parts respectively fixed to the cylinder part and the piston part, and moves the piston part according as an electromagnetic force is applied. One of the first and second electromagnetic parts includes a permanent magnet. 1. An electromagnetic braking cylinder comprising:a cylinder part comprising first and second surfaces and an extending portion, the first and second surfaces facing each other and forming a first receiving space, the extending portion vertically extending from the second surface and forming a second receiving space;a piston part received inside of the first and second receiving spaces, and moving back and forth along the extending part; andan electromagnetic force generating part comprising first and second electromagnetic parts respectively fixed to the cylinder part and the piston part and moving the piston part according as an electromagnetic force is applied, one of the first and second electromagnetic parts comprising a permanent magnet.2. The electromagnetic braking cylinder of claim 1 , wherein the piston part comprises:a bottom portion received by the first receiving space, dividing the first receiving space into first and second sub receiving spaces, and extending parallel with the first and second surfaces; andan axis portion received by the second sub receiving space and the second receiving space, and extending parallel with the extending portion.3. The ...

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Номер записи: 22
03-01-2019 дата публикации

SYSTEM AND METHOD FOR VALIDATING OPERATION OF SECONDARY BRAKING SYSTEM OF A VEHICLE

Номер: US20190001949A1
Автор: PARK Juchirl, VERSIN Alexandru, Ying Long
Принадлежит:

A method is disclosed for validating operation of a secondary braking system (SBS) of a vehicle having a plurality of brakes, by controlling the SBS and a primary braking system (PBS) of the vehicle. The method may involve using the PBS to generate a first predetermined target braking pressure in the PBS for at least a first one of the brakes, while using the SBS to generate a second predetermined target braking pressure in the SBS for at least a second one of the brakes. Actual and anticipated performance characteristics of a braking component associated with the vehicle are then observed and compared, and from the comparison a determination is made whether the SBS is operating properly. 1. A method for validating operation of a secondary braking system (SBS) of a vehicle having a plurality of brakes , by controlling the SBS and a primary braking system (PBS) of the vehicle , the method comprising:using the PBS to generate a first predetermined target braking pressure in the PBS for at least a first one of the brakes;using the SBS to generate a second predetermined target braking pressure in the SBS for at least a second one of the brakes, while maintaining the first predetermined target braking pressure in the PBS, the second predetermined target braking pressure being higher than the first predetermined target braking pressure;observing an actual performance characteristic associated with a braking component of the vehicle;comparing the actual performance characteristic with an anticipated performance characteristic of the braking component; andwhen the actual performance characteristic is approximately equal to the anticipated performance characteristic, determining that the SBS is operating properly, and when the actual performance characteristic is not approximately equal to the anticipated performance characteristic, determining that the SBS is not operating properly.2. The method of claim 1 , wherein comparing the actual performance characteristic with an ...

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Номер записи: 23
14-01-2016 дата публикации

Braking fluid control apparatus

Номер: US20160009266A1
Автор: Yoshitada Katayama
Принадлежит: Advics Co Ltd, Denso Corp

A braking fluid control apparatus includes a housing and an electromagnetic valve. The housing includes a fluid passage through which a braking fluid flows, and is formed with an assembling hole which opens to outside of the housing at an open end thereof. The electromagnetic valve includes a cylindrical sleeve inserted in the assembling hole. The sleeve includes a disk-shaped flange part projecting radially outward thereof. The flange part is formed by bending work in a convex shape projecting toward the bottom portion of the assembling hole, and disposed within the assembling hole. The flange part is sandwiched between the bottom portion of the assembling hole and a swaging deformation portion formed by swaging an area in the vicinity of the open end of the assembling hole.

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Номер записи: 24
14-01-2021 дата публикации

Trailer Control Valve With Integrated Trailer Supply

Номер: US20210009101A1
Автор: Niglas Paul C., Riley Brian J.
Принадлежит:

A trailer control valve for a tractor includes a body defining a supply port and first and second delivery ports. The supply port is configured for fluid communication with a fluid source on the tractor. The first and second delivery ports are configured for fluid communication with glad-hand connectors through which fluid is supplied from the tractor to a trailer for, respectively, releasing a parking brake and applying a service brake. The first delivery port is in fluid communication with the supply port. A relay valve is supported within the body and includes a valve member configured to move between positions preventing and permitting fluid communication between the supply port and the second delivery port. Pressure transducers in the body generate pressure signals indicative of fluid pressure at the delivery ports permitting detection of the presence of a trailer coupled to the tractor. 1. A trailer control valve for a tractor , comprising:a body defining a supply port and first and second delivery ports, the supply port configured for fluid communication with a fluid source on the tractor, the first delivery port in fluid communication with the supply port and configured for fluid communication with a first glad-hand connector through which fluid is supplied from the tractor to a trailer coupled to the tractor for releasing a parking brake on the trailer, the second delivery port configured for fluid communication with a second glad-hand connector through which fluid is supplied from the tractor to the trailer for applying a service brake on the trailer; and,a relay valve supported within the body, the relay valve including a valve member configured to move between a first position preventing fluid communication between the supply port and the second delivery port and a second position permitting fluid communication between the supply port and the second delivery port.2. The trailer control valve of wherein the body includes a first control port configured ...

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Номер записи: 25
15-01-2015 дата публикации

TRAIN CONTROL DEVICE

Номер: US20150014488A1
Автор: SAITO Keiichi
Принадлежит:

The present invention relates to a train control device. The train control device sets an emergency brake pattern and a regular brake pattern as patterns of maximum speed according to the distance to a stopping point, and outputs a braking command when the train speed exceeds the maximum speed. Then, when the maximum speed defined in the regular brake pattern falls below a set speed, the maximum speed of the regular brake pattern is kept constant for a predetermined distance. After that, the maximum speed is gradually reduced toward a stopping point of the emergency brake pattern. This allows a train to make an approach to a fixed stopping position in an automatic train operation even when the fixed stopping position is located farther than a stopping point of the regular brake pattern, and excessive output of an emergency braking command based on the emergency brake pattern can be reduced. 1. A train control device that sets a pattern of maximum speed according to a distance to a stopping point and outputs a braking command when a train speed exceeds the maximum speed ,wherein the maximum speed pattern is changed in a middle of reducing the maximum speed toward the stopping point.2. The train control device according to claim 1 , wherein a timing of changing the maximum speed pattern is determined based on at least either of the speed and the distance to the stopping point.3. The train control device according to claim 1 , wherein the stopping point is changed to a point a set distance farther as a change in the maximum speed pattern.4. The train control device according to claim 3 ,wherein an emergency brake pattern and a regular brake pattern are set as patterns of the maximum speed, the regular brake pattern having a stopping point nearer than a stopping point of the emergency brake pattern and a maximum speed lower than a maximum speed of the emergency brake pattern,wherein the stopping point in the regular brake pattern is changed to a farther point within a ...

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Номер записи: 26
03-02-2022 дата публикации

AIR BRAKE SYSTEM

Номер: US20220032892A1
Автор: JR. BERNHARDT R., LABASTIDE
Принадлежит: International Truck Intellectual Property Company, LLC

This disclosure relates to an air brake system for a vehicle having a front set of wheels having a front air brake and a rear set of wheels having a rear air brake. The air brake system comprises a front air brake cylinder included in the front air brake, and a rear air brake cylinder included in the rear air brake. A foot valve having a first side and a second side is included. A primary air tank is pneumatically connected with the second side of the foot valve, and a secondary air tank is pneumatically connected with the first side of the foot valve. A rear relay valve is pneumatically connected with second side of the foot valve and is pneumatically connected with the rear brake cylinder. A front relay valve is pneumatically connected with the first side of the foot valve and pneumatically connected with the front brake cylinder. 1. An improvement to an air brake system for a vehicle having a front set of wheels having a front air brake and a rear set of wheels having a rear air brake , a front air brake cylinder included in the front air brake; a rear air brake cylinder included in the rear air brake; a foot valve having a first side and a second side , a primary air tank pneumatically connected with the second side of the foot valve , a secondary air tank pneumatically connected with the first side of the foot valve , the improvement comprising:a rear relay valve pneumatically connected with second side of the foot valve and pneumatically connected with the rear brake cylinder; anda front relay valve pneumatically connected with the first side of the foot valve and pneumatically connected with the front brake cylinder.2. An air brake system for a vehicle having a front set of wheels having a front air brake and a rear set of wheels having a rear air brake , the air brake system comprising:a front air brake cylinder included in the front air brake;a rear air brake cylinder included in the rear air brake;a foot valve having a first side and a second side;a ...

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Номер записи: 27
19-01-2017 дата публикации

VEHICLE BRAKE SYSTEM

Номер: US20170015289A1
Автор: Schick Troy E.
Принадлежит:

A brake control system is provided for a vehicle having steerable front wheels, left and right brake units for braking left and right rear wheels, and a single manually operated brake input device. A main brake valve has a supply port, a return port, an outlet and a valve spool for controlling communication therebetween. The valve spool is coupled to brake input device. A normally open left turn valve controls communication between the outlet and the left brake unit. A normally open right turn valve controls communication between the outlet and the right brake unit. A normally open balance valve controls communication between the left and right brake units. The system includes brake input device sensor, a turn angle sensor and a vehicle speed sensor. A control unit controls the left and right turn valves and the balance valve as a function of signals from the sensors. 1. A brake control system for a vehicle having steerable front wheels , left and right rear wheels , a left brake unit for braking the left rear wheel , a right brake unit for braking the right rear wheel , and a single manually operated brake input device , the brake control system comprising:a main brake valve having a supply port, a return port, an outlet and a valve spool for controlling communication between the supply port, the return port, and the outlet;a link which operatively couples the valve spool to the brake input device;a solenoid operated normally open left turn valve for controlling communication between the outlet and the left brake unit;a solenoid operated normally open right turn valve for controlling communication between the outlet and the right brake unit;a solenoid operated normally open balance valve for controlling communication between the left and right brake units;brake position sensor for sensing a position of the brake input device;a turn angle sensor;a vehicle speed sensor; andan electronic control unit (ECU) connected to the brake position sensor, to the turn angle ...

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Номер записи: 28
16-01-2020 дата публикации

Hydraulic Block for a Hydraulic Assembly of a Brake Pressure Control System of a Hydraulic Vehicle Brake System

Номер: US20200017089A1
Автор: Bernd Lutz, Michael Loeffler, Thomas Zander
Принадлежит: ROBERT BOSCH GMBH

A hydraulic block for a hydraulic assembly of a slip control system of a hydraulic vehicle brake system includes a metal-plastic composite part with a metal part and a further part. The metal part includes sleeve-like brake line ports, sleeve-like valve receptacles, sleeve-like pump receptacles, and pipes as connecting lines. The further part is a plastic part that is injection-molded around the metal part to form the hydraulic block in a cuboid shape.

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Номер записи: 29
21-01-2021 дата публикации

BRAKING CONTROL DEVICE

Номер: US20210016755A1
Автор: Ishida Yasuhito, Kobayashi Tatsushi, Nishiwaki Kunihiro, NOMURA Jun
Принадлежит: ADVICS CO., LTD.

The present disclosure comprises a reservoir cutoff valve provided on a pipe and configured to be opened in a non-energization state; a simulator cutoff valve provided on a pipe and configured to be closed in a non-energization state; an operation determination circuit configured to determine whether the brake operation member is in an operation execution state in which the brake operation member is being operated is; and a current control circuit that, when the operation determination circuit determines that the brake operation member is not in an operation execution state, supplies a first current to the reservoir cutoff valve, and when the operation determination circuit determines that the brake operation member is in an operation execution state, supplies a second current greater than the first current to the reservoir cutoff valve. 1. A braking control device comprising:a reservoir connected to a fluid pressure chamber configured to supply a brake fluid in response to an operation of a brake operation member;a first flow path between the reservoir and the fluid pressure chamber;a second flow path connected to the first flow path at a connection part;a stroke simulator configured to apply a reactive force pressure to the brake operation member as a brake fluid is supplied thereto from the fluid pressure chamber via the first flow path and the second flow path;a reservoir cutoff valve provided in the first flow path between the reservoir and the connection part, the reservoir cutoff valve configured to be opened in a non-energization state;an operation determination circuit configured to determine whether the brake operation member is in an operation execution state in which the brake operation member being operated is; anda current control circuit configured to supply a first current to the reservoir cutoff valve when the operation determination circuit determines the brake operation member is in the operation execution state, and the current control circuit ...

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Номер записи: 30
22-01-2015 дата публикации

Device for Controling Electrically Actuable Valves in Different Operating Modes

Номер: US20150022933A1
Автор: Bodenschatz Dirk, Grimme Katharina, Parga-Cacheiro Jose-Luis
Принадлежит:

A device for controlling an electrically actuable valve having a valve coil, including a main switch, situated in the current circuit of the valve coil, for adjusting the current flowing through the valve coil, and a freewheeling path, which has a freewheeling diode and is switched in parallel with the valve coil. A freewheeling switch is provided, by which the freewheeling path is able to be interrupted or closed. This allows for optionally operating the valve in a PMW or in a switching operation. 110-. (canceled)11. A device for controlling an electrically actuable valve having a valve coil , comprising:a main switch, situated in a current circuit of the valve coil, for adjusting the current flowing through the valve coil;a freewheeling path arrangement having a freewheeling diode and is switched in parallel with the valve coil; anda freewheeling switch by which the freewheeling path arrangement is interruptable or closed.12. The device of claim 11 , wherein the freewheeling switch is situated in the freewheeling path.13. The device of claim 11 , further comprising:a voltage limiting device, which is connected to a ground-side terminal of the voltage coil.14. The device of claim 13 , wherein the voltage limiting device includes a Zener diode.15. The device of claim 13 , wherein there is a voltage limitation element between a ground-side terminal of the valve coil and a control terminal of the main switch.16. The device of claim 11 , further comprising:a control unit, which optionally controls the main switch and the freewheeling switch in a PWM operation, in which the main switch is switched on and off according to a specific pulse control factor, the freewheeling switch being switched on, or which controls it in a switching operation, in which the freewheeling switch is switched off and interrupts the freewheeling path.17. The device of claim 11 , wherein at least one of the main switch and the freewheeling switch includes a transistor switch.18. The device of ...

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Номер записи: 31
28-01-2021 дата публикации

VEHICLE BRAKING DEVICE

Номер: US20210024050A1
Автор: OZEKI Yoshimitsu
Принадлежит: ADVICS CO., LTD.

A brake ECU automatically pressurizes a servo chamber of a master cylinder, and then determines whether a single system failure has occurred in the master system. When the single system failure is detected, a refresh drive is executed so that a fluid pressure chamber provided to the master cylinder is subjected to a negative pressure to cause a brake fluid to forcibly flow from a reservoir into the fluid pressure chamber via a seal member provided inside of the master cylinder and foreign matters caught by the seal member are thus washed out. The brake ECU again automatically pressurizes the servo chamber, determines whether the single system failure has been resolved, and notifies the occurrence of the single system failure when the single system failure has not been resolved. 1. A vehicle braking device comprising:a master cylinder comprising a main cylinder, a master piston drivably housed in the main cylinder, a fluid pressure chamber whose volume changes in response to movement of the master piston, a communication hole formed in the main cylinder so that a reservoir for reserving a brake fluid communicates with an inside of the main cylinder through the communication hole, a seal member made of an elastic material, the seal member provided between an inner peripheral surface of the main cylinder and an outer peripheral surface of the master piston, and the seal member provided between the communication hole and the fluid pressure chamber;a failure detector configured to detect a failure of a master system comprising the master cylinder; anda negative pressure generation controller that, when the failure is detected by the failure detector, moves the master piston to generate a negative pressure in the fluid pressure chamber.2. The vehicle braking device according to claim 1 , further comprising a servo pressure generator configured to supply a servo pressure for moving the master cylinder in a servo chamber formed in the master cylinder claim 1 , irrespective ...

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Номер записи: 32
01-02-2018 дата публикации

TRAILER BRAKE PILOT CONTROL CIRCUIT AND METHOD OF CONTROL THEREOF

Номер: US20180029569A1
Автор: McMillen Brandon J., Pence Ryan A., Quinn Aaron M., Schick Troy E., Tagtow Jordan
Принадлежит:

A braking system of a trailer and work machine includes a pressurized fluid supply, a hydraulic base valve fluidly coupled to the supply, and a pneumatic base valve fluidly coupled to the supply. A proportional control valve is also fluidly coupled to the supply, and it includes an outlet disposed in fluid communication with the inlets of the hydraulic base valve and the pneumatic base valve. The system further includes a hydraulic output configured to be fluidly coupled to a hydraulic braking system of a trailer, and a pneumatic output configured to be fluidly coupled to a pneumatic braking system of a trailer. The hydraulic output is fluidly coupled to the outlet of the hydraulic base valve, and the pneumatic output is fluidly coupled to the outlet of the pneumatic base valve. 1. A braking system of a trailer and work machine , comprising:a pressurized fluid supply;a hydraulic base valve fluidly coupled to the supply, the hydraulic base valve including an inlet and an outlet;a pneumatic base valve fluidly coupled to the supply, the pneumatic base valve including an inlet and an outlet;a proportional control valve fluidly coupled to the supply, the proportional control valve including an outlet disposed in fluid communication with the inlets of the hydraulic base valve and the pneumatic base valve;a hydraulic output configured to be fluidly coupled to a hydraulic braking system of a trailer, the hydraulic output fluidly coupled to the outlet of the hydraulic base valve; anda pneumatic output configured to be fluidly coupled to a pneumatic braking system of a trailer, the pneumatic output fluidly coupled to the outlet of the pneumatic base valve.2. The braking system of claim 1 , further comprising a solenoid valve disposed in fluid communication with the proportional control valve claim 1 , where the solenoid valve is movable between an open position in which the proportional control valve is fluidly coupled to the hydraulic base valve and pneumatic base valve ...

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Номер записи: 33
01-02-2018 дата публикации

Pneumatic trailer brake circuit with breakaway detection and method thereof

Номер: US20180029570A1
Автор: Brandon J. MCMILLEN, Jordan TAGTOW, Troy E. Schick
Принадлежит: Deere and Co

A method of detecting a leak in an air trailer brake circuit of a trailer includes providing a controller, a base valve, a first sensor, a second sensor, a leak control valve having a solenoid, a pneumatic fluid supply, a first brake output, and a second brake output. The method further includes supplying a first pressure to an inlet of the base valve and outputting a second pressure from an outlet of the base valve. The first pressure is detected with the first sensor and the second pressure is detected with the second sensor. The method also includes communicating the detected first pressure and the second pressure to the controller, and comparing a difference between first pressure and the second pressure to a threshold. A leak is detected in the air trailer brake circuit if the difference satisfies the threshold.

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Номер записи: 34
01-02-2018 дата публикации

DUAL LINE HYDRAULIC TRAILER BRAKE CONTROL CIRCUIT AND METHOD OF CONTROL THEREOF

Номер: US20180029571A1
Автор: McMillen Brandon J., Pence Ryan A., Quinn Aaron M., Schick Troy E.
Принадлежит:

A method of detecting a leak in a hydraulic trailer brake circuit of a trailer includes providing a controller, a base valve, a first sensor, a second sensor, a control valve having a solenoid, a reduction valve, a hydraulic fluid supply, a first brake output, and a second brake output. The method also includes supplying a first pressure to an inlet of the base valve and outputting a second pressure from an outlet of the base valve to the first brake output. The first pressure is detected by the first sensor and the second pressure is detected by the second sensor, and the detected first and second pressures are communicated to the controller. The difference between the first and second pressures are compared to a threshold, and a leak is detected in the hydraulic trailer brake circuit if the difference satisfies the threshold. 1. A method of detecting a leak in a hydraulic trailer brake circuit of a trailer , comprising:providing a controller, a base valve, a first sensor, a second sensor, a control valve having a solenoid, a reduction valve, a hydraulic fluid supply, a first brake output, and a second brake output;supplying a first pressure to an inlet of the base valve;outputting a second pressure from an outlet of the base valve to the first brake output;detecting the first pressure with the first sensor and the second pressure with the second sensor;communicating the detected first pressure and the second pressure to the controller;comparing a difference between first pressure and the second pressure to a threshold; anddetecting a leak in the air trailer brake circuit if the difference satisfies the threshold.2. The method of claim 1 , further comprising de-energizing the solenoid of the control valve via the controller if the difference satisfies the threshold.3. The method of claim 1 , further comprising actuating the control valve to a closed position if the difference satisfies the threshold.4. The method of claim 1 , further comprising supplying an amount ...

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Номер записи: 35
01-02-2018 дата публикации

Hydraulic trailer brake circuit for adjustable gain and improved stability

Номер: US20180029572A1
Автор: Aaron M. QUINN, Brandon J. MCMILLEN, Jordan TAGTOW, Ryan A. PENCE, Troy E. Schick
Принадлежит: Deere and Co

A braking system of a work machine includes a pressurized fluid supply, a base valve fluidly coupled to the supply, a proportional control valve fluidly coupled to the supply, and a fluid output configured to be fluidly coupled to a braking system of a trailer. A first fluid path is selectively fluidly coupling the supply to the fluid output via the base valve, and a second fluid path is selectively fluidly coupling the supply to the fluid output via the proportional control valve. The base valve includes a predefined fixed gain and the proportional control valve includes an adjustable ratio.

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Номер записи: 36
17-02-2022 дата публикации

PRESSURE EQUALIZATION VALVE

Номер: US20220048485A1
Автор: ANSTEY Nigel, HEMMINGS Mark, PEARE Justin
Принадлежит:

A pressure equalization valve arrangement for a rail brake system includes a hold valve and a membrane vent valve each having a control chamber. The hold valve and vent valve are piloted by a respective solenoid valve. A further solenoid valve is connected to the control chamber of the vent valve to allow the pressure across the vent valve membrane to be equalized with the brake cylinder pressure to decrease the pressure difference across the membrane. This results in an improved vent time. 1. A brake valve arrangement for a rail brake system configured to control air flow to brake cylinders , the arrangement comprising:a hold membrane valve; anda vent membrane valve, wherein the hold vale and the vent valve each have a control chamber, wherein the hold membrane valve and vent membrane valve are piloted by respective solenoid valves; anda further solenoid valve connected to the control chamber of the vent membrane valve to enable equalization of the pressure across the vent valve membrane with the brake cylinder pressure to decrease a pressure difference across the vent valve membrane.2. The brake valve of claim 1 , wherein the further solenoid is in fluid communication with the outlet of the hold membrane valve.3. The brake valve of claim 1 , wherein the further solenoid is in fluid communication with an inlet of the vent solenoid.4. The brake valve of claim 1 , wherein the further solenoid valve receives the brake cylinder pressure.5. The brake valve of claim 1 , wherein claim 1 , to release the brakes in use claim 1 , the hold valve membrane is held closed by applying the supply pressure to the control chamber of the hold membrane valve and by energising the hold solenoid valve claim 1 , and wherein the brake pressure in a brake cylinder is vented to atmosphere by exhausting the vent membrane valve control chamber by energising the vent solenoid valve.6. The brake valve of claim 1 , wherein claim 1 , in use claim 1 , to hold the pressure in the brake cylinder ...

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Номер записи: 37
17-02-2022 дата публикации

BRAKE CONTROL APPARATUS AND METHOD OF CONTROLLING BRAKE APPARATUS

Номер: US20220048489A1
Автор: JUNG Jaewon
Принадлежит:

Provided is a brake control apparatus mounted in a vehicle with a plurality of wheels, the brake control apparatus including: a actuator configured to apply a braking torque to the plurality of wheels; and a controller configured to control the actuator to apply a first braking torque to a first wheel of the plurality of wheels, based on a spin of the first wheel being greater than or equal to a target spin, and to control the actuator to apply a second braking torque to the plurality of wheels based on a displacement of a brake pedal of the vehicle while applying the first braking torque to the first wheel, wherein the controller stepwise or linearly increases a braking torque applied to a second wheel of the plurality of wheels up to the second braking torque. 1. A brake control apparatus mounted in a vehicle with a plurality of wheels , the brake control apparatus comprising:a actuator configured to apply a braking torque to the plurality of wheels; and control the actuator to apply a first braking torque to a first wheel of the plurality of wheels, based on a spin of the first wheel being greater than or equal to a target spin, and', 'control the actuator to apply a second braking torque to the plurality of wheels based on a displacement of a brake pedal of the vehicle while applying the first braking torque to the first wheel,, 'a controller configured towherein the controller is configured to control the actuator to stepwise or linearly increase a braking torque applied to a second wheel of the plurality of wheels up to the second braking torque.2. The brake control apparatus of claim 1 , wherein the actuator comprises:a piston pump configured to supply hydraulic pressure to a plurality of wheel cylinders corresponding to each of the plurality of wheels,a drive motor configured to drive the piston pump,a flow path extended to the plurality of wheel cylinders from the piston pump, anda plurality of valves located on the flow path, andwherein the controller is ...

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Номер записи: 38
04-02-2021 дата публикации

PIPELINE AND BRAKING SYSTEM

Номер: US20210031743A1
Автор: Ishizaki Keisuke, Nakatsugawa Eiji, OHZAWA Tsukasa
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A pipeline includes a pipeline body in which fluid flows and a throttle formed at a specific position of the pipeline body as a flow passage sectional shape of the pipeline body is changed from that of a remaining portion of the pipeline body. The specific position at which the throttle is provided is a position in the pipeline body and corresponds to a position that serves as an abdominal part of the pipeline in a vibration mode where a resonance frequency is the closest to a pulsation frequency of pressure pulsation caused by the fluid. 1. A pipeline , comprising:a pipeline body in which fluid flows; anda throttle formed at a specific position in the pipeline body as a flow passage sectional shape of the pipeline body is changed from a flow passage sectional shape of a remaining portion of the pipeline body, whereinthe specific position is a position in the pipeline body and corresponds to a position that serves as an abdominal part in a vibration mode of the pipeline body before the throttle is formed, the vibration mode being a mode in which a resonance frequency is closest to a pulsation frequency of pressure pulsation caused by the fluid inside the pipeline body before the throttle is formed.2. The pipeline according to claim 1 , wherein a flow passage sectional area of the throttle is the same as a flow passage sectional area of the remaining portion of the pipeline body.3. The pipeline according to claim 1 , wherein a sectional shape of the throttle is an elliptical shape.4. The pipeline according to claim 3 , wherein the throttle is formed in the pipeline body so that a long diameter direction of the elliptical shape coincides with a vibration direction of the pipeline body before the throttle is formed claim 3 , the vibration direction being a direction in which an amplitude becomes maximum in the vibration mode.5. The pipeline according to claim 1 , wherein the specific position is a position in the pipeline body claim 1 , the position corresponding to a ...

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Номер записи: 39
31-01-2019 дата публикации

ELECTROMAGNETIC VALVE DEVICE, USE THEREOF, AND SYSTEM

Номер: US20190032799A1
Автор: Raff Viktor, Thode Oliver
Принадлежит: ETO MAGNETIC GMBH

An electromagnetic valve device having a fluid inlet port (), which is formed in a valve casing (), for a fluid to be switched, in particular pneumatic fluid, a working port (), which is realized in the valve casing, for the fluid and locking component(s) (), which are moveably guided in the valve casing along an axial direction and which are realized for interacting with a valve seat () formed in the valve casing and opening a fluid flow path between the fluid inlet port and the working port and which are moveably realized via fluid switched by means of electromagnetic positioning means (). 1110. An electromagnetic valve having a fluid inlet port () , which is formed in a valve casing () , for fluid to be switched ,{'b': '2', 'a working port (), which is formed in the valve casing, for the fluid,'}{'b': 14', '26', '32, 'and locking means (), which are movably guided in the valve casing along an axial direction and are formed for interacting with a valve seat () formed in the valve casing and opening a fluid flow path between the fluid inlet port and the working port and which are realized so as to be movable via a fluid switched by means of electromagnetic positioning means (),'}{'b': '36', 'an axially directed drive force of the drive means counteracting a return force acting on the locking means via spring means (),'}wherein{'b': '26', 'the valve seat () is formed axially bilaterally such that a first opening area is exposed in a first axial displacement position of the locking means relative to the valve casing and a second opening area, which is arranged opposite to the first opening area, is exposed in an opposing second axial displacement position,'}{'b': '50', 'figref': {'@idref': 'DRAWINGS', 'FIG. 1'}, 'and the module-like valve casing being used and received in a valve outer casing () having external ports, which align with the fluid inlet port as well as the working port, such that when the positioning means are not activated, the return force closes the ...

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Номер записи: 40
09-02-2017 дата публикации

METHOD FOR THE TEMPERATURE-DEPENDENT CONTROL OF A PRESSURE CONTROL VALVE AND A CONTROL DEVICE THEREFORE

Номер: US20170036655A1
Автор: Eckert Horst, Schwagmeyer Florian
Принадлежит:

A method for the temperature-dependent control of a pressure control valve of a vehicle comprising an inlet valve and an outlet valve includes detecting a predefined pressure difference to be controlled by the pressure control valve, determining a present valve body temperature, wherein, for this purpose, a temperature change proceeding from a starting temperature is considered depending on at least one detected valve body influencing variable, determining, depending on the pressure difference to be controlled and on the determined present valve body temperature, at least one of a temperature-adjusted pulse duration for the inlet valve and a temperature-adjusted pulse duration for the outlet valve, and controlling at least one of the inlet valve and the outlet valve of the pressure control valve via the particular temperature-adjusted pulse duration in order to effectuate the detected pressure difference at the determined valve body temperature. 1. A method for the temperature-dependent control of a pressure control valve of a vehicle comprising an inlet valve and an outlet valve , the method comprising:detecting a pressure difference to be controlled by the pressure control valve;determining a present valve body temperature, wherein, for this purpose, a temperature change proceeding from a starting temperature is considered depending on at least one detected valve body influencing variable;determining, depending on the pressure difference to be controlled and on the determined present valve body temperature, at least one of a temperature-adjusted pulse duration for the inlet valve and a temperature-adjusted pulse duration for the outlet valve; andcontrolling at least one of the inlet valve and the outlet valve of the pressure control valve via the particular temperature-adjusted pulse duration in order to effectuate the detected pressure difference at the determined valve body temperature.2. The method as claimed in claim 1 , wherein in order to determine at least ...

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Номер записи: 41
24-02-2022 дата публикации

SYSTEMS AND METHODS FOR PRESSURE CONTROL MIXED MODE FOR BRAKING OPERATION

Номер: US20220055600A1
Автор: Georgin Marc, Hill Philip
Принадлежит: GOODRICH CORPORATION

A brake control system of the present disclosure calibrates a servo valve and calculates a calibrated transfer function associated with the servo valve for precise braking in open-loop mode. The calibration steps may include determining i) whether an aircraft is on a ground surface, ii) whether the aircraft is not moving relative to the ground surface, and iii) whether braking is applied to a brake system of the aircraft. The brake control unit may calibrate the servo valve in response to the brake control unit determining that i) the aircraft is on the ground surface, ii) the aircraft is not moving relative to the ground surface, and iii) the braking is not applied to the brake system of the aircraft. The calibration process includes sending two or more test currents to the servo valve, and determining braking pressures associated with those test currents to calculate the transfer function. 1. A brake control system , comprising:a servo valve configured to receive a hydraulic fluid and provide the hydraulic fluid to apply a braking force to a wheel via a hydraulic line; anda brake control unit in electronic communication with the servo valve; determine whether an aircraft is on a ground surface and not moving relative to the ground surface;', 'determine whether braking is applied to a brake system of the aircraft; and', 'calibrate the servo valve in response to the brake control unit determining that i) the aircraft is on the ground surface, ii) the aircraft is not moving relative to the ground surface, and iii) the braking is not applied to the brake system of the aircraft., 'wherein the brake control unit is configured to2. The brake control system of claim 1 , wherein the calibrating comprises:sending, by the brake control unit, a first electric current to the servo valve; anddetermining, by the brake control unit, a first pressure applied to the brake system via the servo valve, in response to the first electric current being sent to the servo valve.3. The ...

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Номер записи: 42
06-02-2020 дата публикации

Brake-Motor Control Unit, Braking System for a Vehicle having an Electric Brake Motor, and Method for the Control of the Brake-Motor Control Unit

Номер: US20200039488A1
Автор: Frenzel Toni, Rebholz-Goldmann Peter, Zechmeister Steffen
Принадлежит:

A brake motor control device for control of an electric brake motor of an electromechanical braking device includes a connection unit configured to be connected to an auxiliary control unit for controlling the electric brake motor in an event of a fault of the brake motor control device. The electric brake motor is configured to displace a brake piston against a brake disc. 1. A brake motor control device for control of an electric brake motor of an electromechanical braking device the brake motor control device comprising:a connection unit connected to an auxiliary control unit configured to control the electric brake motor in an event of a fault of the brake motor control device,wherein the electric brake motor is configured to displace a brake piston against a brake disc.2. The brake motor control device as claimed in claim 1 , wherein the brake motor control device is an Electronic Stability Program (ESP) control unit.3. The brake motor control device as claimed in claim 1 , further comprising:a microcontroller connected via an enabling line to the connection unit, the microcontroller configured to enable connection unit in the event of the fault.4. The brake motor control device as claimed in claim 1 , wherein the connection unit includes a current measuring unit.5. The brake motor control device as claimed in claim 1 , wherein the connection unit includes a detection unit configured to detect a switching state of an actuating switch claim 1 , in order to control the electromechanical braking device.6. The brake motor control device as claimed in claim 1 , wherein the connection unit is connected via one or more connection units that are disposed between a standard driver unit and power electronics of the electric brake motor.7. A braking system for a vehicle with an electromechanical braking device claim 1 , comprising:a wheel braking device;an electric brake motor configured to displace a brake piston against a brake disc; anda brake motor control device ...

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Номер записи: 43
07-02-2019 дата публикации

Automated Smear Making Apparatus

Номер: US20190041299A1
Автор: Chacko Koshy T., Shoffner John Scott, Solomon Roei
Принадлежит:

An automated smear making apparatus used to prepare and smear samples on glass slides. In one embodiment, there is provided a smearing subsystem that generally includes a smear cartridge having: an input reel; at least one roll bar; a take-up reel; and a smearing tape. The smearing tape is initially wound within the input reel and coupled to the take-up reel such that the smearing tape can be drawn from the input reel and into the take-up reel. The smearing tape may include a plurality of perforations formed therein. The smearing tape may then be wrapped around the roll bar such that each of the plurality of perforations forms a blade that extends from the smearing tape to expose a smear surface as the smearing tape is drawn into the take-up reel. Alternatively, the smearing tape may be bent such that an edge of the smearing tape forms a smear surface between two roll bars. A slide transport surface is also provided to move a slide across the smear surface. 129-. (canceled)30. A smearing subsystem for use in an automated slide preparation apparatus , the smearing subsystem comprising: an input reel;', 'a take-up reel;', 'a smearing tape comprising a smear surface included on a blade of a cut-out of the smearing tape; and', 'a deflection component configured to deflect the smearing tape cut-out to create the blade., 'a) a smear cartridge including'}31. The smearing subsystem of claim 30 , wherein the blade extends from the smearing tape to expose the smear surface as the smearing tape is drawn from the input reel and into the take-up reel.32. The smearing subsystem of claim 31 , further comprising a slide transport surface configured to move a slide across the exposed smear surface.33. The smearing subsystem of claim 32 , wherein the exposed smear surface of the blade forms a contact angle with the slide when the slide transport surface brings the slide in contact with the exposed smear surface such that the contact angle formed between the smear surface and the ...

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Номер записи: 44
18-02-2016 дата публикации

SYSTEM AND METHOD FOR CONTROLLING BRAKING PRESSURES AT WHEELS ON A VEHICLE

Номер: US20160046268A1
Автор: Jr. Thomas Stephen, MILLER
Принадлежит:

A controller controls respective braking pressures at wheels on a vehicle. The controller includes a processor electrically communicating with each of a plurality of switching valves, which controls braking pressures at respective wheels. The processor, during a braking event having a brake demand above a braking demand threshold, controls each of the switching valves to maintain braking pressures at the respective wheels based on at least one additional criteria. 1. A controller controlling respective braking pressures at wheels on a vehicle , the controller comprising:a processor electrically communicating with each of a plurality of switching valves, which control braking pressures at respective wheels, the processor, during a braking event having a brake demand above a braking demand threshold, controlling each of the switching valves to maintain braking pressures at the respective wheels based on at least one additional criteria including a relatively uniform coefficient of friction of a surface on which the vehicle is traveling, and if the surface on which the vehicle is traveling has the relatively uniform coefficient of friction, the processor controlling the switching valves to maintain the braking pressures at the respective wheels only after a delay after an onset of the braking pressures at the respective wheels.2. The controller as set forth in claim 1 , wherein:the at least one additional criteria further includes a weight on at least one of the wheels; andthe processor controls the switching valves to maintain the braking pressures at the respective wheels if the weight on the at least one of the wheels is above a predetermined weight threshold.3. The controller as set forth in claim 2 , wherein:the processor determines the surface has the relatively uniform coefficient of friction based on respective wheel spin velocities of at least two of the wheels being within a predetermined spin velocity threshold.4. The controller as set forth in claim 3 , ...

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Номер записи: 45
15-02-2018 дата публикации

SYSTEM AND METHOD FOR CONTROLLING BRAKING OF AUTONOMOUS MACHINE

Номер: US20180043868A1
Автор: GE Xinyu, Gu Hua
Принадлежит: CATERPILLAR INC.

A braking system for controlling braking of a machine is disclosed. The braking system includes a first set of sensors to detect a first set of information indicative of operational characteristics of an engine and a transmission system. The braking system includes a second set of sensors to detect a second set of information indicative of a load of the machine and a profile of a work surface. The braking system includes a receiving unit to receive a third set of information indicative of a predefined route of the machine. The braking system includes a controller configured to control an actuator for opening and closing of an exhaust port for engine braking, and to control a valve for achieving a predetermined gear-ratio during the engine braking, based on the first set of information, the second set of information, and the third set of information. 1. A braking system for controlling braking of a machine , the braking system comprising:a first set of sensors configured to detect a first set of information, the first set of information indicating operational characteristics of an engine and a transmission system of the machine;a second set of sensors configured to detect a second set of information, the second set of information indicating a load of the machine and a profile of a work surface, while the machine is traveling on a predefined route;a receiving unit configured to receive a third set of information, the third set of information indicating the predefined route of the machine; and control an actuator disposed in the engine, the actuator configured to open and close an exhaust port for engine braking; and', 'control a valve disposed in the transmission system, the valve configured to achieve a predetermined gear-ratio during the engine braking,', 'wherein the actuator and the valve are controlled based on the first set of information, the second set of information, and the third set of information., 'a controller in communication with the first set of ...

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Номер записи: 46
19-02-2015 дата публикации

SYSTEM AND METHOD FOR CONTROLLING RESPECTIVE BRAKING PRESSURES AT WHEELS ON A VEHICLE

Номер: US20150051804A1
Автор: Jr. Thomas Stephen, MILLER
Принадлежит: BENDIX COMMERCIAL VEHICLE SYSTEMS LLC

A controller controls respective braking pressures at wheels on a vehicle. The controller includes a processor electrically communicating with a first switching valve, which controls a first of the braking pressure at a first of the wheels, and a second switching valve, which controls a second of the braking pressures at a second of the wheels. The processor, during a braking control event, controls the switching valve associated with the higher of the braking pressures to maintain the higher braking pressure while switching a state of the switching valve associated with the lower of the braking pressures to increase the lower braking pressure. 1. A controller controlling respective braking pressures at wheels on a vehicle , the controller comprising:a processor electrically communicating with a first switching valve, which controls a first of the braking pressure at a first of the wheels, and a second switching valve, which controls a second of the braking pressures at a second of the wheels, the processor, during a braking control event, controlling the switching valve associated with the higher of the braking pressures to maintain the higher braking pressure while switching a state of the switching valve associated with the lower of the braking pressures to increase the lower braking pressure.2. The controller as set forth in claim 1 , wherein the first switching valve is associated with the lower braking pressure and the second switching valve is associated with the higher braking pressure:the processor transmits a signal to set the second switching valve to a hold state if the processor determines to increase the braking pressure at the first wheel during the braking control event.3. The controller as set forth in claim 2 , wherein:the first wheel and the second wheel are included in a common brake circuit.4. The controller as set forth in claim 2 , wherein:the first switching valve is in one of a hold state and a release state while the second switching valve ...

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Номер записи: 47
25-02-2021 дата публикации

BRAKING SYSTEM WITH TWO PRESSURE SOURCES, AND METHOD FOR OPERATING A BRAKING SYSTEM WITH TWO PRESSURE SOURCES

Номер: US20210053540A1
Автор: Besier Marco, Drumm Stefan
Принадлежит:

A braking system including four hydraulically actuatable wheel brakes. A normally closed outlet valve is assigned to each wheel brake and a normally open inlet valve is assigned to each wheel brake. Two pressure supply devices are provided for active pressure build-up in the wheel brakes. A first and a second brake circuit are hydraulically configured with two wheel brakes respectively, wherein in each brake circuit a respective pressure supply device is hydraulically connected to two wheel brakes. A first and a second control and regulating unit are provided, wherein the first control and regulating unit electrically controls the pressure supply device of the first brake circuit, and wherein the second control and regulating unit hydraulically controls the pressure supply device of the second brake circuit, and the two control and regulating units are connected together via a data interface. 1. A braking system comprising four hydraulically actuatable wheel brakes , wherein a normally closed outlet valve is assigned to each wheel brake and a normally open inlet valve is assigned to each wheel brake , wherein two pressure supply devices are provided for active pressure build-up in the wheel brakes , wherein a first and a second brake circuit are hydraulically configured with two wheel brakes respectively , wherein in each brake circuit a respective pressure supply device is hydraulically connected to two wheel brakes ,wherein a first and a second control and regulating unit are provided, wherein the first control and regulating unit electrically controls the pressure supply device of the first brake circuit, and wherein the second control and regulating unit electrically controls the pressure supply device of the second brake circuit, and wherein the two control and regulating units are connected together via a data interface.2. The braking system as claimed in claim 1 , wherein the two brake circuits are connected in hydraulically isolatable fashion to two normally ...

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Номер записи: 48
13-02-2020 дата публикации

INTEGRATED TRAILER CONTROL MODULE WITH EXTERNAL ELECTRO-PNEUMATIC PARKING BRAKE UNIT

Номер: US20200047730A1
Автор: VAN THIEL Julian
Принадлежит:

An electropneumatic trailer control module () for an electronically controllable pneumatic brake system () for a vehicle combination () with a tractor vehicle () and a trailer vehicle (), has an electronic control unit (ECU), a pneumatic reservoir input (), a trailer control valve unit () with electropneumatic valves (RV, IV, OV), a trailer brake pressure port (), and a trailer supply pressure port (). The electronic control unit (ECU) has a parking brake signal input () for receiving an electronic brake representation signal (SB, SB, SB) for an immobilizing brake () of the tractor vehicle () and is configured to, on the basis of the brake representation signal (SB, SB, SB), switch at least one of the one or more electropneumatic valves (RV, IV, OV) of the trailer control valve unit () in order to output a brake pressure. 115205005025041. An electropneumatic trailer control module () for an electronically controllable pneumatic brake system () for a vehicle combination () with a tractor vehicle () and a trailer vehicle () , the electropneumatic trailer control module () comprising:an electronic control unit (ECU),{'b': 11', '525, 'a pneumatic reservoir input (), which is connectable to a compressed-air reservoir (),'}{'b': '65', 'a trailer control valve unit () with one or more electropneumatic valves (RV, IV, OV),'}{'b': 22', '21', '200', '1', '2', '3', '6', '532', '532', '502, 'i': a', 'b, 'a trailer brake pressure port (), and a trailer supply pressure port (), characterized in that the electronic control unit (ECU) has a parking brake signal input () for receiving an electronic brake representation signal (SB, SB, SB) which represents an actuation of an immobilizing brake (, , ) of the tractor vehicle (), wherein'}{'b': 65', '1', '2', '3', '22, 'the electronic control unit (ECU) is configured to switch at least one valve (IV) of the one or more electropneumatic valves (RV, IV, OV) of the trailer control valve unit () based on the brake representation signal (SB, ...

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Номер записи: 49
05-03-2015 дата публикации

BRAKE HYDRAULIC DEVICE FOR VEHICLE

Номер: US20150059334A1
Автор: NAKAMURA Motoyasu
Принадлежит:

Provided is a brake hydraulic device for a vehicle, including: a base body having a hydraulic pressure path for brake fluid formed therein; an electromagnetic valve; an electromagnetic coil; a pressure sensor; and a housing attached to the outer surface of the base body. The housing includes a peripheral wall part and an intermediate wall part partitioning a space inside the peripheral wall part into a front side and a rear side. A plurality of bus bars on the coil side to be electrically connected to the electromagnetic coil, and a plurality of bus bars on the sensor side to be electrically connected to the pressure sensor are embedded in the intermediate wall part. A hierarchy region where the bus bars on the coil side and the bus bars on the sensor side are positioned in a hierarchy state with each other in the front-rear direction is provided. 1. A brake hydraulic device for a vehicle , comprising:a base body having a hydraulic pressure path for brake fluid formed therein;an electromagnetic valve which opens and closes the hydraulic pressure path;an electromagnetic coil which drives the electromagnetic valve;a pressure sensor which detects intensity of the hydraulic pressure of the brake fluid in the hydraulic pressure path; anda housing attached to an outer surface of the base body and having a housing chamber for accommodating the electromagnetic valve, the electromagnetic coil, and the pressure sensor,wherein the housing includes a peripheral wall part having openings formed on a front side and a rear side thereof, and an intermediate wall part partitioning a space inside the peripheral wall part into a front side and a rear side,wherein the housing chamber is provided on the rear side of the intermediate wall part,wherein a plurality of bus bars on the coil side to be electrically connected to the electromagnetic coil, and a plurality of bus bars on the sensor side to be electrically connected to the pressure sensor are embedded in the intermediate wall part ...

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Номер записи: 50
05-03-2015 дата публикации

BRAKING INSTALLATION FOR A RAILWAY TRAIN INCLUDING A PLURALITY OF WAGONS FOR TRANSPORTING GOODS

Номер: US20150061359A1
Автор: Demaria Francesco, GRASSO Angelo, Wynd David
Принадлежит: FAIVELEY TRANSPORT ITALIA S. P. A.

The braking installation () comprises a pneumatic brake pipe (BP) which extends along the train, and wherein the pressure is controlled by a braking control apparatus (BCA) in the locomotive (L), an electrical power supply and communication line (EL) which extends along the train, and which is coupled to an electronic control unit (ECU) in the locomotive (L); and in each wagon (W) or in each group of wagons (W) associated with each other, an electronic module (EM) coupled to the electrical line (EL) through power supply and communication interface devices (I, I), and further connected to an electro-pneumatic control assembly (EPC) designed for driving pneumatic brake valve means (ELV). The interface means (I, I) comprise electronic processing and control means (MC, MC) and a first transceiver means (TC) adapted to allow an exchange of information and/or data with the electronic control unit (ECU) of the locomotive (L) through the electrical line (EL), for controlling the braking of the wagon (W) or group of wagons (W). In each wagon (W) or group of wagons (W) a local communication network or bus (b) is positioned between the interface means (I, I) and the electronic module (EM), and a second transceiver (TC) is also provided, this transceiver being coupled to the electrical line (EL) and operating on a frequency band which is different from, possibly overlapping but broader than, that of the first transceiver means (TC). The processing and control means (MC, MC) are designed for driving the second transceiver (TC) when the first transceiver (TC) is active and/or inactive, and for communicating to the electronic control unit (ECU) of the locomotive (L) information derived from the signals supplied by sensors (T Tn) to the electronic module (EM) and transferred by the latter to the interface devices (I, I) through the local communication network or bus (b). 212. Braking installation according to claim 1 , wherein said transceiver means (TC) and the additional ...

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Номер записи: 51
02-03-2017 дата публикации

Traction-Slip Controlled Brake System of a Motor Vehicle Approaching Stops

Номер: US20170057479A1
Автор: HOLOBRÁDI Péter, WIEDER Gerhard
Принадлежит:

A control device for controlling a brake system of a vehicle comprises a first output for controlling a first solenoid valve; a second output for controlling a valve device; an input for receiving a requested brake pressure; and a port for receiving messages on a databus. The control device is capable of receiving an automatic brake request on the databus; determining a desired brake pressure in response to the automatic brake request; receiving a requested brake pressure in response to a driver actuating a service brake valve; comparing the desired brake pressure to the requested brake pressure; transmitting a control signal to close the first solenoid valve and transmitting a control signal to change the valve device to a first operating position in response to the requested brake pressure being less than the desired brake pressure in order to provide pressure to at least one brake actuator. 1. A method for controlling a brake system of a vehicle comprising:determining a desired brake pressure in response to an automatic brake request;determining a requested brake pressure in response to a driver actuating a service brake valve;comparing the desired brake pressure to the requested brake pressure; andcontrolling a first solenoid valve and a valve device in response to the requested brake pressure being less than the desired brake pressure.2. The method as in claim 1 , wherein controlling the valve device comprises connecting a pressure medium reserve to at least one brake actuator through the valve device in response to the requested brake pressure being less than the desired brake pressure.3. The method as in claim 1 , wherein controlling a first solenoid valve comprises transmitting a control signal to change the first solenoid valve from an open state to a closed state and wherein controlling the valve device comprises transmitting a control signal to change the valve device from a second operating position to a first operating position.4. The method as in claim ...

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Номер записи: 52
20-02-2020 дата публикации

COIL ASSEMBLY AND BRAKE CONTROL DEVICE

Номер: US20200055507A1
Автор: CHIBA Kentaro, ISHIAI Kyosuke, KOMABA Takaaki
Принадлежит:

A coil assembly includes: a bobbin; a coil including a winding around the bobbin; a yoke attached to the bobbin; and a connection terminal electrically connected to the winding. The connection terminal is a press-fit terminal that includes a terminal portion projecting perpendicularly from the bobbin outward in an axial direction of the bobbin. The yoke is arranged on a side of the bobbin that is opposite to the terminal portion in an axial direction of the terminal portion, and supports the press-fit terminal. 1. A coil assembly comprising:a bobbin;a coil including a winding around the bobbin;a yoke attached to the bobbin; and{'b': '1', 'a connection terminal electrically connected to the winding, p wherein the connection terminal is a press-fit terminal that includes a terminal portion projecting perpendicularly from the bobbin outward in an axial direction of the bobbin, and'}wherein the yoke is arranged on a side of the bobbin that is opposite to the terminal portion in an axial direction of the terminal portion, and supports the press-fit terminal.2. The coil assembly according to claim 1 ,wherein the yoke supports the press-fit terminal via an insulator.3. The coil assembly according to claim 2 ,wherein the bobbin includes a resin portion formed of a resin, and the insulator is the resin portion.4. The coil assembly according to claim 3 ,wherein the resin portion covers a portion of the yoke that supports the press-fit terminal.5. A brake control device that includes the coil assembly according to claim 1 , the brake control device comprising:a base body in which a fluid path is formed;a solenoid valve which is attached to one surface of the base body and on which the coil assembly is mounted;a housing fixed to the one surface of the base body, the housing covering the solenoid valve and the coil assembly; anda control board housed in the housing, the control board controlling an operation of the solenoid valve,wherein the terminal portion is press-fitted into ...

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Номер записи: 53
20-02-2020 дата публикации

ELECTRICAL COMPONENT ASSEMBLY AND VEHICULAR BRAKE FLUID PRESSURE CONTROL DEVICE

Номер: US20200055508A1
Автор: CHIBA Kentaro, KOMABA Takaaki
Принадлежит:

An electrical component assembly suitably prevents electrical components from coming off, while adopting a simple structure of connection by a connection terminal to a control board. The electrical component assembly includes a housing in which the electrical components are assembled, and the electrical components and the housing are fixed to a surface of a base body. The electrical component includes a connection terminal to be press-contacted into a through hole of a substrate of the housing. The electrical component is provided with an electrical component adhesion margin facing said surface of the base body, so as to be fixed to the base body by an adhesive interposed between the base body and the electrical component adhesion margin. 1. An electrical component assembly comprising:an electrical component; anda housing in which the electrical component is assembled,wherein the electrical component and the housing are fixed to a surface of a base body, the electrical component includes a connection terminal to be press-contacted into a throughhole of a control board provided in the housing, andthe electrical component is provided with an electrical component adhesion margin facing said surface of the base body, so as to be fixed to the base body by an adhesive interposed between the base body and the electrical component adhesion margin.2. The electrical component assembly as claimed in claim 1 , wherein the housing includes a housing adhesion margin facing said surface of the base body claim 1 , so as to be adhered to the base body via the housing adhesion margin.3. The electrical component assembly as claimed in claim 1 , whereinthe direction of the connection terminal being inserted into the throughhole is the same as that of the electrical component being assembled to the housing,the electrical component is provided on the outer surface thereof, perpendicular to the direction of said assembling, with a protruding rib to be press-fitted into a groove of the ...

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Номер записи: 54
10-03-2016 дата публикации

Brake system depletion valve

Номер: US20160068149A1
Автор: Jordan Randy D.
Принадлежит:

An air brake valve designed to remove the air from a vehicle air brake system in order to apply parking brakes in a manner to prevent unauthorized release of said brakes, and to achieve regulatory pre-trip and D.O.T. inspection of system low pressure warning indicator as well as regulatory after trip parking procedures for school busses. 1. A vehicle air valve brake system having a source of air pressure , an air pressure actuator for normally applying a vehicle brake , a spring operated air pressure released actuator for mechanically applying the brake when the air pressure from said source is below a predetermined pressure , a manually operable valve having an inlet port connected with said source , a pressure regulated outlet port and an exhaust port both connected to the atmosphere , said valve manually moveable to said first position to preserve system air pressure and to said second position to deplete system air pressure , said valve also automatically movable to said first position when system pressure is depleted to desired p.s.i.2. The system as set forth in wherein said valve element is maintained in said first position until manually moved by operator to said second position to reduce or deplete air pressure.3. A vehicle air pressure brake system having a source of air pressure claim 1 , an air pressure actuator for normally applying a vehicle brake claim 1 , a spring operated air pressure released actuator for mechanically applying the brake when the air pressure from said source is reduced to a predetermined pressure claim 1 , a first manually operable valve having an inlet connected with the source claim 1 , a pressure regulated outlet claim 1 , and an exhaust port both connected to the atmosphere claim 1 , means including a selectively operable valve for connecting the pressure regulated outlet with the spring operated actuator claim 1 , said first valve being moveable to said second position to connect said inlet with said pressure regulated outlet ...

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Номер записи: 55
11-03-2021 дата публикации

Electropneumatic brake control module for utility vehicles with redundancy pressure connector

Номер: US20210070272A1
Автор: Julian van Thiel
Принадлежит: WABCO GmbH

An electropneumatic brake control module ( 1 ) for utility vehicles ( 100 ) includes a supply port ( 2 ) for connecting a compressed air supply ( 3 ); a first axle channel port ( 4 ); a pneumatically controlled inlet/outlet valve unit ( 10 ) for outputting a first braking pressure (PB 1 ) at the first axle channel port ( 4 ); and an electropneumatic pilot control unit ( 8 ) for outputting at least one first control pressure (P 1 ) at the inlet/outlet valve unit ( 10 ). The brake control module ( 1 ) further includes a redundancy pressure port ( 6 ) for receiving a redundancy pressure (PR) and a redundancy valve unit ( 12 ) connected to the redundancy pressure port ( 6 ) for outputting a redundancy braking pressure (PBR) at the first axle channel port ( 4 ) in the event that the electropneumatic pilot control unit ( 8 ) has a fault.

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Номер записи: 56
09-03-2017 дата публикации

SOLENOID VALVE

Номер: US20170067571A1
Автор: BÜRGER Jörg, SIEKER Armin, TEICHMANN Andreas
Принадлежит:

A solenoid valve () comprises a coil core (), a yoke (), a valve chamber (), an inlet armature () upstream of an inlet () of the valve chamber (), an outlet armature () upstream of a first outlet () of the valve chamber (), and second outlet () at the valve chamber (), wherein the inlet armature () and outlet armature () can move and the inlet () and first outlet () lie opposite one another. In the solenoid valve (), the inlet () and the second outlet () are connected to one another by way of an equalizing system having a non-return valve (), wherein the non-return valve () is open towards the inlet (). 1. A solenoid valve comprising a coil core , a yoke , a valve chamber , an inlet armature upstream of an inlet of the valve chamber , an outlet armature upstream of a first outlet of the valve chamber , and a second outlet on the valve chamber , wherein the inlet armature and the outlet armature can move and the inlet and first outlet lie opposite one another , wherein the inlet and second outlet are connected to one another by way of an equalizing system having a non-return valve , and wherein the non-return valve is open towards the inlet.2. The solenoid valve as claimed in claim 1 , wherein the inlet armature is embodied in a tapered manner at its end that is facing the outlet armature claim 1 , and wherein the outlet armature comprises an end having an inner taper that corresponds to said end of the inlet armature.3. The solenoid valve as claimed in claim 2 , further comprising at least one magnetic coil and yoke arms that are arranged in a transverse manner with respect to an axis of a coil core in such a manner that an imaginary projection line of one of the yoke arms intersects the outlet armature in the case of a closed first outlet in the region of a tapered surface.4. The solenoid valve as claimed in claim 1 , further comprising precisely one magnetic coil so as to move the inlet armature and the outlet armature.5. The solenoid valve as claimed in claim 1 , ...

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Номер записи: 57
05-03-2020 дата публикации

Hydraulic brake system for a motor vehicle and method for operating and testing same

Номер: US20200070797A1
Автор: Heinrich Plewnia, Nicholas Alford
Принадлежит: LUCAS AUTOMOTIVE GMBH

A hydraulic brake system for a motor vehicle with redundant braking pressure regulation is presented. The brake system comprises a first functional unit having at least one first electrical braking pressure generator which is designed to generate a braking pressure at each of a plurality of wheel brakes, and further having a valve assembly per wheel brake. The valve assembly can be actuated for braking pressure regulation at the corresponding wheel brake in order to couple a first wheel brake associated with the valve assembly either to the first braking pressure generator or to an unpressurized reservoir for hydraulic fluid. The brake system also comprises a second functional unit having at least one second electrical braking pressure generator which is designed to generate a braking pressure at each of a subset of the wheel brakes. The output of the second braking pressure generator is arranged downstream, as seen from the first braking pressure generator, of the valve assembly associated with the corresponding wheel brake. The second functional unit is also designed to perform braking pressure regulation at each wheel brake of the subset redundantly in relation to the first functional unit.

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Номер записи: 58
18-03-2021 дата публикации

REDUNDANT MOTION CONTROL FOR A VEHICLE WITH A REDUNDANT BRAKING ARRANGEMENT

Номер: US20210078556A1
Автор: FARRES Lionel, Henderson Leon, Laine Leo, Majqvist Johanna, Oscarsson Christian, Soulier Nicolas, Tagesson Kristoffer, Vaidyanathan Karthik Ramanan, Vilca Jose
Принадлежит:

A control arrangement for a vehicle motion system including a braking function, comprising motion actuators with one or more brake actuators pertaining to the braking function, a first vehicle motion management controller (VMM) and a second vehicle motion management controller (VMM), forming a redundant assembly to control the braking function, wherein, in riding conditions, the first vehicle motion management controller controls the brake actuators with a current nominal expected braking performance, while the second vehicle motion management controller (VMM) is in a waiting-to-operate mode, the control arrangement comprising a hot swap functionality in which the second vehicle motion management controller (VMM) is configured to take over control of the brake actuators from the first vehicle motion management controller, with the current nominal expected braking performance, in a short time period (SWT) less than one second, preferably less than 0.5 second, preferably less than 0.3 second, and associated control method. 2. The brake control device of claim 1 , wherein the first and second local electronic control unit are configured to control claim 1 , in a substantially simultaneous fashion claim 1 , the first and second inlet solenoid valves and to control respectively claim 1 , in a substantially simultaneous fashion claim 1 , the first and second outlet solenoid valves.3. The brake control device of claim 1 , wherein first and second inlet solenoid valves exhibit different pneumatic characteristics and/or first and second outlet solenoid valves exhibit different pneumatic characteristics.4. The brake control device of claim 1 , wherein the inlet and outlet solenoid valves are normally closed solenoid valves.5. The brake control device of claim 1 , wherein the first and second local electronic control units are supplied from independent electrical power supplies.6. The brake control device of claim 1 , wherein the first and second local electronic control units ...

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Номер записи: 59
26-03-2015 дата публикации

DUAL PRESSURE CONTROL FOR A ROTOR BRAKE ACTUATOR FOR VERTICAL LIFT AIRCRAFT

Номер: US20150084403A1
Автор: Elving Carl T., Pujol Michael, Sobel James E.
Принадлежит:

In some aspects, a master cylinder assembly for vertical lift aircraft is configured to move pressurized fluid through a conduit in response to applied movement of an input lever. A low pressure relief valve can be connected to a first conduit to limit pressure to a low level. An isolation valve can be connected to the first conduit and configured to isolate the low pressure relief valve from the conduit when engaged. A high pressure relief valve can be connected to a second fluid conduit to limit pressure to a high level. In some aspects, a rotor brake actuator is fluidly connected to the first conduit and the second conduit and configured to engage a rotor brake in response to hydraulic fluid pressure. 1. A rotor blade rotation control master cylinder assembly for vertical lift aircraft , the assembly comprising:a master cylinder configured to be activated by movement of a rotor blade rotation control handle of a vertical lift aircraft to move pressurized hydraulic fluid through one or more conduits;a rotor brake actuator connected to the master cylinder and configured to engage a rotor brake of the vertical lift aircraft in response to receiving hydraulic fluid at a hydraulic fluid pressure from the master cylinder;a low pressure relief valve fluidly connected in parallel to the master cylinder and the rotor brake actuator, and configured to transmit pressurized hydraulic fluid away from the rotor brake actuator in response to the hydraulic fluid pressure exceeding a first pressure threshold of the low pressure relief valve;a high pressure relief valve connected in parallel to the master cylinder, the rotor brake actuator and the low pressure relief valve, and configured to transmit pressurized hydraulic fluid away from the rotor brake actuator in response to the hydraulic fluid pressure exceeding a second pressure threshold of the high pressure relief valve, the second pressure threshold higher than the first pressure threshold, wherein the low pressure relief ...

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Номер записи: 60
22-03-2018 дата публикации

PNEUMATIC CONFIGURATION MODULE FOR ELECTRONIC AIR BRAKE SYSTEM

Номер: US20180079396A1
Автор: Kintish Ben, Leonard Erich, Vilaetis Konstantinos
Принадлежит: NEW YORK AIR BRAKE, LLC

A modular EAB system that reduces the number of individualized modules but provides the desired functionality using a configuration module that is coupled to a plurality of brake system control modules and has a receptacle interface configured to engage a series of modular sections that can be selected from a variety of options to perform dedicated air brake functions. The dedicated air brake functions included comprise brake pipe cutout, equalizing reservoir backup, brake pipe emergency, automatic flow calibration, dead engine regulator, dynamic brake interlock, emergency limiting valve regulation, dynamic brake interlock and emergency limiting valve regulation, 20 pipe back up, and brake cylinder cutout. 1. An electronic air brake system , comprising:a plurality of brake system control modules; anda configuration module coupled to the plurality of brake system control modules and having a receptacle interface configured to engage a series of sections performing a series of corresponding dedicated air brake functions.2. The electronic air brake system of claim 1 , wherein the series of dedicated functions comprise at least two selected from the group of dedicated functions consisting of brake pipe cutout claim 1 , equalizing reservoir backup claim 1 , brake pipe emergency claim 1 , automatic flow calibration claim 1 , dead engine regulator claim 1 , dynamic brake interlock claim 1 , emergency limiting valve regulation claim 1 , dynamic brake interlock and emergency limiting valve regulation claim 1 , 20 pipe back up claim 1 , and brake cylinder cutout.3. The electronic air brake system of claim 2 , wherein the receptacle interface that couples to the section corresponding with brake pipe cutout comprises a brake pipe relay output pressure port claim 2 , a brake pipe feedback pressure port claim 2 , a brake pipe vent valve pressure port claim 2 , a brake pipe pressure port claim 2 , and a brake pipe cutout pilot pressure port.4. The electronic air brake system of ...

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Номер записи: 61
22-03-2018 дата публикации

HYDRAULIC BRAKE APPARATUS AND RELATED METHODS

Номер: US20180079400A1
Автор: Crossman John
Принадлежит:

Example hydraulic brake apparatus and related methods are described herein. An example apparatus disclosed herein includes a parking brake valve having an inlet fluidly coupled to a pump and an outlet fluidly coupled to a brake. The parking brake valve is operable between an open state and a closed state to allow or block fluid through the parking brake valve. To lock the fluid in the brake in a parking brake mode, the parking brake valve is moved to the closed state by pumping fluid into the inlet. 1. An apparatus comprising: a first passageway between a first inlet and an outlet, the first inlet to be in fluid communication with a pump, the outlet to be fluidly coupled to a vehicle brake;', 'a second passageway between a second inlet and the first passageway, the second inlet to be in fluid communication with a reservoir; and', 'a shuttle having a first spool and a second spool, the second spool disposed in the second passageway and blocking fluid flow between first passageway and the second passageway, the shuttle movable between an open position in which the first spool allows fluid flow between the first inlet and the outlet and a closed position in which the first spool blocks fluid flow between the first inlet and the outlet, the shuttle having an orifice across the second spool fluidly connecting the first passageway to the second passageway., 'a parking brake valve including2. The apparatus of further including a check valve to allow fluid flow from the first inlet to the outlet when the shuttle is in the closed position.3. The apparatus of claim 2 , wherein the parking brake valve further includes a third passageway between the first inlet and the outlet claim 2 , the check valve disposed in the third passageway.4. The apparatus of further including a fluid level sensor to detect a level of fluid in the reservoir.5. The apparatus of further including the pump claim 1 , wherein the pump is a bi-directional gear pump.6. The apparatus of claim 5 , wherein the ...

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Номер записи: 62
22-03-2018 дата публикации

ELECTRONICALLY CONTROLLED PNEUMATIC (ECP) OVERLAY CONTROL VALVE

Номер: US20180079401A1
Автор: Call Derick, Parnapy Keith
Принадлежит: NEW YORK AIR BRAKE, LLC

An electronically controlled pneumatic (ECP) overlay control valve can selective switch between a conventional pneumatic mode and an ECP mode. In ECP mode, the overlay control valve shunts the brake cylinder pressure of the pneumatic control valve which allows a relay valve to build or exhaust pressure in the brake cylinder in response to an electronically controlled apply/release circuit. In conventional pneumatic mode, the overlay control valve disconnects the relay valve and allows a conventional pneumatic control valve to control the pressurization and exhausting of the brake cylinder. 1. An electronically controlled pneumatic overlay for a pneumatic control valve having a brake cylinder pressure outlet , comprising:a relay valve having a first port coupled to a source of reservoir pressure, a second port for providing a brake cylinder pressure output, and an exhaust, wherein the relay valve is movable between a first position where the second port is connected to the exhaust, a second position where the first port, the second port, and the exhaust are isolated from each other, and a third position where the first port is connected to the second port so that the source of reservoir pressure provides the brake cylinder pressure output; anda pilot valve coupled to the relay valve for receiving the brake cylinder pressure output from the second port of the relay valve, wherein the pilot valve is moveable to selectively couple the brake cylinder pressure output to the brake cylinder pressure outlet of the pneumatic control valve.2. The electronically controlled pneumatic overlay of claim 1 , further comprising a solenoid valve that is moveable in response to an electrical signal to selectively connect a source of brake pipe pressure to the pilot valve.3. The electronically controlled pneumatic overlay of claim 2 , further comprising an apply/release circuit coupled to a relay pilot of the relay valve to selectively move the relay valve between the first claim 2 , ...

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Номер записи: 63
26-03-2015 дата публикации

Method for Operating an Electronically Controllable Brake System

Номер: US20150088396A1
Автор: Schmitt Hubert
Принадлежит: LUCAS AUTOMOTIVE GMBH

An electronically controllable braking system includes a hydraulic brake-pressure generator which generates the brake pressures for the wheel brakes. In the hydraulic connection to the brake-pressure generator, a valve arrangement has been assigned to each wheel brake in order to adjust the brake pressures demanded for the wheel brakes in the multiplex mode, for the purpose of operating the braking system. A method has the following steps: establishing for which of the wheel brakes the adjusting of the brake pressure demanded for it has priority in a current multiplex cycle; generating the brake pressure demanded for the wheel brake that has been set to priority; opening the valve arrangement that has been assigned to the wheel brake that has been set to priority; and closing the valve arrangements that have been assigned to the wheel brakes that have not been set to priority. 110-. (canceled)11. A method for operating an electronically controllable braking system for a motor vehicle that includes a hydraulic brake-pressure generator that generates the brake pressures for wheel brakes of the vehicle , wherein in the hydraulic connection to the brake-pressure generator , a valve arrangement has been assigned to each wheel brake in order to adjust the brake pressures demanded for the wheel brakes in multiplex mode , the method comprising the steps of:(a) establishing for which of the wheel brakes the adjusting of the brake pressure demanded for it in a current multiplex cycle has priority;(b) generating the brake pressure demanded for the wheel brake that has been set to priority;(c) opening the valve arrangement that has been assigned to the wheel brake that has been set to priority; and(d) closing the valve arrangements that have been assigned to the wheel brakes that have not been set to priority.12. The method defined in claim 11 , characterized by the step of opening the valve arrangement that has been assigned to a wheel brake that has not been set to priority ...

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Номер записи: 64
02-04-2015 дата публикации

Solenoid Valve with Shaped Spring

Номер: US20150090914A1
Автор: Ambrosi Massimiliano
Принадлежит: ROBERT BOSCH GMBH

A solenoid valve for controlling fluids includes a pole core, an armature which is connected to a closing element, and a spring element which is arranged in a working gap between the pole core and the armature. The spring element includes a shaped spring of substantially disk-shaped design. The shaped spring has a curvature with at least one flank region and one dome region, a tangent to the dome region being parallel to an end surface of the pole core. 1. A solenoid valve for controlling fluids , comprising:a pole core;an armature which is connected to a closing element;a spring element which is arranged in a working gap between the pole core and the armature; anda second spring element arranged in the working gap between the pole core and the armature,wherein in the electrically de-energized state of the solenoid valve, either only the second spring element or only the shaped spring is in contact with the armature or the pole core,wherein the spring element includes a shaped spring of substantially disk-shaped configuration; andwherein the shaped spring is configured to possess a curvature defined in the radial direction and extending around the circumference of the spring element with at least one flank region and one dome region radially offset from the center of the disk-shaped configuration, a tangent spanning across to the dome region being parallel to an end surface of the pole core.2. The solenoid valve according to claim 1 , wherein claim 1 , in an electrically de-energized state of the solenoid valve claim 1 , the dome region of the shaped spring makes contact with the end surface of the pole core or an end side of the armature.3. A solenoid valve for controlling fluids claim 1 , comprising:a pole core;an armature which is connected to a closing element; anda spring element which is arranged in a working gap between the pole core and the armature,wherein the spring element includes a shaped spring of substantially disk-shaped configuration;wherein the ...

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Номер записи: 65
29-03-2018 дата публикации

System and method for braking a vehicle

Номер: US20180086324A1
Автор: Adnan Mustapha, David W. Howell, Friedbert Roether, Gerhard Wieder, Michael D. Tober, Paul C. Niglas
Принадлежит: BENDIX COMMERCIAL VEHICLE SYSTEMS LLC

A valve includes at least one of an electrical port adapted to receive an electronic control signal and a pneumatic control port adapted to receive a pneumatic control signal. The valve also includes a pneumatic delivery port. The pneumatic delivery port is adapted to transmit a pneumatic fluid, based on the at least one of the received electronic control signal and the received pneumatic control signal, from a second independent source to control i) a second associated service brake and ii) delivery of the pneumatic fluid from a first independent source to control a first associated service brake.

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Номер записи: 66
29-03-2018 дата публикации

METHOD FOR DIAGNOSING FAULT IN A VACUUM SYSTEM INCLUDING A CHECK VALVE

Номер: US20180086326A1
Автор: Moore Ian, SCHMALER Christian
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

A method for fault diagnosis of a vacuum system having a vacuum source and a vacuum consumer connected to the vacuum source via a connecting line with a non-return valve disposed in the connecting line upstream of the vacuum source. The method including indirectly determining a vacuum in the vacuum consumer based on an estimated vacuum value. Providing a flow sensor, using the flow sensor to measure a flow in the connecting line and drawing a conclusion regarding a defect based on the estimated vacuum value and the flow. An exemplary embodiment may also include a combined check valve and flow sensor. 1. A method for fault diagnosis of a vacuum system that includes a vacuum source and a vacuum consumer connected to the vacuum source via a connecting line , with a valve disposed upstream of the vacuum source comprising:indirectly determining a vacuum in the vacuum consumer based on an estimated vacuum value;providing a flow sensor and using said flow sensor to measure a flow in the connecting line; anddrawing a conclusion regarding a defect based on the estimated vacuum value and the flow.2. The method of wherein the estimated vacuum value is determined based on balancing an air inflow and an air outflow.3. The method of wherein the air inflow is determined based on a brake activation and the air outflow is determined based on a vacuum source activation.4. The method of wherein said conclusion includes a leak upstream of the valve if the measured flow is greater than an expected flow based on the estimated vacuum value.5. The method of wherein said conclusion includes a leak downstream of the valve if the measured flow is lower than the expected flow based on the estimated vacuum value.6. The method of wherein said conclusion includes a malfunction of the vacuum source if the measured flow is lower than the expected flow based on the estimated vacuum value.7. The method of wherein said conclusion includes sticking of the valve depending on the measured flow and an ...

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Номер записи: 67
21-03-2019 дата публикации

Hydraulic trailer brake circuit for adjustable gain and improved stability

Номер: US20190084535A1
Автор: Aaron M. QUINN, Brandon J. MCMILLEN, Jordan TAGTOW, Ryan A. PENCE, Troy E. Schick
Принадлежит: Deere and Co

A braking system of a work machine includes a pressurized fluid supply, a base valve fluidly coupled to the supply, a proportional control valve fluidly coupled to the supply, and a fluid output configured to be fluidly coupled to a braking system of a trailer. A first fluid path is selectively fluidly coupling the supply to the fluid output via the base valve, and a second fluid path is selectively fluidly coupling the supply to the fluid output via the proportional control valve. The base valve includes a predefined fixed gain and the proportional control valve includes an adjustable ratio.

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Номер записи: 68
05-05-2022 дата публикации

HYDRAULIC BLOCK OF ELECTRONIC BRAKING DEVICE FOR VEHICLE

Номер: US20220135011A1
Автор: AHN Sung Ki
Принадлежит:

A hydraulic block of an electronic braking device for a vehicle includes a first input port and a second input port configured to receive a brake fluid from a main braking system, at least one oil chamber connected to one input port of the first input port and the second input port, a first output port and a second output port configured to discharge the brake fluid to a plurality of wheel brake apparatuses, a first inlet line configured to connect the first input port and the first output port to each other, and a second inlet line configured to connect the second input port and the second output port to each other, a first outlet line bifurcated from the first inlet line, a second outlet line bifurcated from the second inlet line, and a valve mounting unit mounted with a plurality of valves.

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Номер записи: 69
05-05-2022 дата публикации

Vehicle braking calibration system

Номер: US20220135016A1
Автор: Gary Lee Bailey
Принадлежит: Westinghouse Air Brake Technologies Corp

A vehicle braking calibration system and related method includes a valve fluidly coupled with a vehicle braking system of a vehicle. The valve is configured to move between an open position and a closed position to control an amount of a fluid that is directed out of the braking system. A sensor detects one or more characteristics of the fluid that is directed out of the braking system. A controller determines a state of the braking system based on the one or more characteristics of the fluid.

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Номер записи: 70
26-06-2014 дата публикации

Brake Control System Having Independent Power Supply

Номер: US20140174316A1
Автор: Brown Dale Alexander, LAMBA HARINDER Singh
Принадлежит: EMD

A brake control system for a consist having multiple cars is disclosed. The brake control system may include a conduit configured to direct a compressed fluid to the multiple cars, and a plurality of brakes, including at least one brake located at each of the multiple cars. The brake control system may further include a plurality of valves, including at least one valve located at each of the multiple cars and fluidly connected between the conduit and the at least one brake, and a main controller. The main controller may be configured to transmit a signal indicative of desired braking to each of the plurality of valves, causing substantially simultaneous activation of the plurality of brakes. 1. A brake control system for a consist having multiple cars , the brake control system comprising:a conduit configured to direct a compressed fluid to the multiple cars;a plurality of brakes, including at least one brake located at each of the multiple cars;a plurality of valves, including at least one valve located at each of the multiple cars and fluidly connected between the conduit and the at least one brake; anda main controller configured to transmit a signal indicative of desired braking to each of the plurality of valves, causing substantially simultaneous activation of the plurality of brakes.2. The brake control system of claim 1 , wherein:the main controller is located at a locomotive of the consist;the brake control system further includes a plurality of car controllers, including one controller located at each of the multiple cars; andthe main controller is in communication with the plurality of valves via the plurality of car controllers.3. The brake control system of claim 2 , wherein:the at least one brake includes one brake associated with each wheel of a corresponding car of the multiple cars; andthe at least one valve includes a single valve associated with all brakes of the corresponding car.4. The brake control system of claim 3 , further including a ...

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Номер записи: 71
01-04-2021 дата публикации

BRAKE SYSTEM AND MOTOR VEHICLE

Номер: US20210094523A1
Автор: DINKEL Dieter
Принадлежит: Continental Teves AG & Co. oHG

A brake system for a motor vehicle, wherein the brake system is divided into two blocks, wherein a separate electric pressure generator is arranged in each block, and a motor vehicle having such a brake system. 1. A brake system for a motor vehicle comprising:a first block;a second block separate from the first block;a brake master cylinder arranged in the first block;a first electric pressure generator arranged in the first block;a second electric pressure generator arranged in the second block;a plurality of inlet valves;a first group of wheel ports arranged on the first block and are connected to the brake master cylinder and the first electric pressure generator via a respective inlet valve; anda second group of wheel ports arranged on the second block and are connected to the second electric pressure generator via a respective inlet valve.2. The brake system as claimed in claim 1 , wherein the wheel ports of the second group are connected to the brake master cylinder via the respective inlet valves and a connecting line connecting the blocks.3. The brake system as claimed in claim 1 , wherein an additional brake cylinder is arranged in the second block claim 1 , the additional brake cylinder has a piston which divides the additional brake cylinder into a first pressure chamber and a second pressure chamber claim 1 , wherein the first pressure chamber is connected to the brake master cylinder via a connecting line connecting the blocks claim 1 , wherein the wheel ports of the second group are connected to the second pressure chamber via the respective inlet valves.4. The brake system as claimed in claim 1 ,wherein the first electric pressure generator is connected via a common sequence valve to inlet valves connected to the first electric pressure generator.5. The brake system as claimed in claim 1 ,wherein the second electric pressure generator is connected via a common sequence valve to inlet valves connected to the second electric pressure generator.6. The ...

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Номер записи: 72
05-04-2018 дата публикации

Electronic brake valve controller with adjustable friction and detent torque

Номер: US20180093649A1
Автор: Erich Leonard, Peter Greetham, Steve NEWTON
Принадлежит: New York Air Brake LLC

A brake controller having independently adjustable friction and detent torque to allow for easy adjustment of handle feel without changing or replacing components. The brake handle is coupled to a cam that rotates with the handle and has a series of divots in its outer circumference corresponding to established brake handle positions. A detent roller is biased by an adjustable spring into engagement with the outer circumference of the cam and thus into the divots when the handle is moved. A separately adjustable spring biases a lateral surface of the cam into engagement with a frictional surface. Independent adjustment of the two spring can adjust both detent and friction torque, thus allowing a user to easily adjust handle feel without having to change or replace handle components

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Номер записи: 73
05-04-2018 дата публикации

HYDRAULIC BRAKE SYSTEM

Номер: US20180093652A1
Автор: Maruyama Masaki, Nakaoka Hiroshi, Uchida Kiyoyuki
Принадлежит:

A hydraulic brake system, including: a brake operation member; a brake device; a master cylinder; a communication switching valve; a low-pressure-source shut-off valve; a high-pressure source; a regulator; a pressure adjuster; and a controller, wherein, when a pressurizing state of the master cylinder is switched from a first pressurizing state to a second pressurizing state after initiation of an operation on the brake operation member, the controller executes a pressurizing-state switching control in which switching of a state of the low-pressure-source shut-off valve from an open state to a closed state and switching of a state of the communication switching valve from a closed state to an open state are carried out after a pressure-regulating state of the regulator has been switched from a first pressure-regulating state to a second pressure-regulating state by controlling the pressure adjuster to increase a second pilot pressure while the first pressurizing state is maintained. 1. A hydraulic brake system , comprising:a brake operation member to be operated by a driver;a brake device provided for a wheel and configured to generate a braking force having a magnitude in accordance with a pressure of a working fluid supplied thereto;a master cylinder including (A-1) a housing including a partition portion which partitions an interior of the housing into two fluid chambers and which has an opening, (A-2) an input piston disposed in the housing so as to be located rearward of the partition portion and connected to the brake operation member so as to be moved forward by an operation of the brake operation member, (A-3) a pressurizing piston having a main body portion which is disposed in the housing so as to be located forward of the partition portion and which has a flange formed at a rear end thereof, (A-4) an inter-piston chamber defined between the input piston and the pressurizing piston utilizing the opening of the partition portion, (A-5) a pressurizing ...

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Номер записи: 74
28-03-2019 дата публикации

ELECTRIC BRAKE SYSTEM AND OPERATING METHOD THEREOF

Номер: US20190092300A1
Автор: Choi Seong Ho, JEONG Hyojin
Принадлежит:

Disclosed herein are an electric brake system and an operating method thereof. The electric bake system includes a master cylinder discharging pressure medium according to a displacement of a brake pedal, a simulator providing a sense of pedal to a driver, a hydraulic supplier generating hydraulic pressure by operating a hydraulic piston in response to an electrical signal output by corresponding to the displacement of the brake pedal, and a hydraulic control unit controlling hydraulic pressure of the pressure medium supplied to each wheel cylinder. The electric brake system performs a normal operation mode having a low pressure mode and a high pressure mode, an abnormal operation mode and an inspection mode. 1. An electric brake system comprising:a hydraulic supplier configured to generate hydraulic pressure by operating a hydraulic piston by an electrical signal, which is output corresponding to a displacement of a brake pedal, and provided with a first pressure chamber provided on one side of the hydraulic piston movably accommodated in a cylinder block and a second pressure chamber provided on the other side of the hydraulic piston; anda hydraulic control unit provided with a first hydraulic circuit configured to control hydraulic pressure transmitted to two wheel cylinders, and a second hydraulic circuit configured to control hydraulic pressure transmitted to other two wheel cylinders,wherein the hydraulic control unit comprises a first hydraulic flow path communicated with the first pressure chamber, a second hydraulic flow path diverged from the first hydraulic flow path, a third hydraulic flow path diverged from the first hydraulic flow path and then connected to the second hydraulic circuit, a fourth hydraulic flow path communicated with the second pressure chamber and connected to the first hydraulic circuit, a fifth hydraulic flow path configured to connect the second hydraulic flow path to the first hydraulic circuit and the fourth hydraulic flow path, ...

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Номер записи: 75
28-03-2019 дата публикации

ELECTRIC BRAKE SYSTEM AND OPERATING METHOD THEREOF

Номер: US20190092301A1
Автор: Choi Seong Ho, JEONG Hyojin
Принадлежит:

Disclosed herein are an electric brake system and an operating method thereof. The electric brake system includes a master cylinder to discharge a pressurized medium in accordance with displacement of a brake pedal, a simulation device to provide a driver with a pedal feeling, a hydraulic pressure supply device to generate a hydraulic pressure by operating a hydraulic piston in accordance with an electrical signal output in response to the displacement of the brake pedal, and a hydraulic control unit to control a hydraulic pressure of the pressurized medium supplied to each wheel cylinder. The electric brake system may perform a normal mode, an abnormal mode, and an inspection mode. 1. An electric brake system comprising:a hydraulic pressure supply device configured to generate a hydraulic pressure by operating a hydraulic piston by an electrical signal output in response to displacement of a brake pedal and comprising a first pressure chamber formed at one side of the hydraulic piston movably accommodated in a cylinder block and a second pressure chamber formed at the other side of the hydraulic piston; anda hydraulic control unit comprising a first hydraulic circuit configured to control a hydraulic pressure transmitted to two wheel cylinders and a second hydraulic circuit configured to control a hydraulic pressure transmitted to the other two wheel cylinders,wherein the hydraulic control unit comprises a first hydraulic flow path communicating with the first pressure chamber, second and third hydraulic flow paths branched out from the first hydraulic flow path and respectively connected to the first and second hydraulic circuits, a fourth hydraulic flow path communicating with the second pressure chamber, fifth and sixth hydraulic flow paths branched out from the fourth hydraulic flow path and respectively connected to the first and second hydraulic circuits, and a seventh hydraulic flow path connecting the first hydraulic flow path with the third hydraulic flow ...

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Номер записи: 76
28-03-2019 дата публикации

SOLENOID VALVE FOR BRAKE SYSTEM

Номер: US20190092305A1
Автор: JEON In Wook
Принадлежит:

A solenoid valve for brake system includes a valve housing installed in a modulator block, and having an oil flow path; a valve seat installed in the inside of the valve housing, and forming an orifice; an armature configured to move up and down by a magnet core in the valve housing, and to open or close the orifice; a sleeve coupled with the valve housing, and accommodating the armature therein; a restoring spring configured to provide an elastic restoring force to the armature to close the orifice normally; and a damper member interposed between the magnet core and the armature. 1. A solenoid valve for brake system comprising:a valve housing installed in a modulator block, and having an oil flow path;a valve seat installed in the inside of the valve housing, and forming an orifice;an armature configured to move up and down by a magnet core in the valve housing, and to open or close the orifice;a sleeve coupled with the valve housing, and accommodating the armature therein;a restoring spring configured to provide an elastic restoring force to the armature to close the orifice normally; anda damper member interposed between the magnet core and the armature.2. The solenoid valve for brake system according to claim 1 , wherein the damper member is in the shape of a ring claim 1 , anda dent portion on which the damper member is rested is formed at a top edge of the armature.3. The solenoid valve for brake system according to claim 1 , wherein a protrusion is formed in the shape of a half sphere on one surface of the damper member facing the magnet core.4. The solenoid valve for brake system according to claim 1 , wherein a protrusion is formed in the shape of a tetrahedron on one surface of the damper member facing the magnet core.5. The solenoid valve for brake system according to claim 1 , wherein the damper member is made of polyetherether ketone (PEEK). This application is based on and claims priority under 35 U.S.C. § 119 to Korean Patent Applications No. 10-2017- ...

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Номер записи: 77
04-04-2019 дата публикации

SIMULATOR VALVE AND ELECTRONIC BRAKE SYSTEM USING THE SAME

Номер: US20190100179A1
Автор: Lee Chung Jae
Принадлежит:

A simulator valve and an electronic brake system using the same are disclosed. The electronic brake system includes a master cylinder provided with at least one cylinder chamber having a volume changeable according to operation of a pedal, a pedal simulator connected to the cylinder chamber, configured to provide reaction force corresponding to a pedal effort of the pedal, a hydraulic-pressure supply device configured to provide hydraulic pressure to at least one wheel cylinder, an electronic control unit (ECU) configured to operate the hydraulic-pressure supply device, and a simulator valve provided in a flow passage through which the master cylinder is connected to the pedal simulator, and provided with a unidirectional flow passage that allows fluid to flow from the pedal simulator to the cylinder chamber and a bidirectional flow passage that is electronically opened or closed. 1. An electronic brake system comprising:a master cylinder provided with at least one cylinder chamber having a volume changeable according to operation of a pedal;a pedal simulator connected to the cylinder chamber, configured to provide reaction force corresponding to a pedal effort of the pedal;a hydraulic-pressure supply device configured to provide hydraulic pressure to at least one wheel cylinder;an electronic control unit (ECU) configured to operate the hydraulic-pressure supply device; anda simulator valve provided in a flow passage through which the master cylinder is connected to the pedal simulator, and provided with a unidirectional flow passage that allows fluid to flow from the pedal simulator to the cylinder chamber and a bidirectional flow passage that is electronically opened or closed.2. The electronic brake system according to claim 1 , wherein the unidirectional flow passage is formed by a lip seal provided in the simulator valve.3. The electronic brake system according to claim 1 , wherein the simulator valve includes:a sleeve, an upper part of which is coupled to a ...

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Номер записи: 78
02-04-2020 дата публикации

METHOD AND DEVICE FOR OPERATING A MOTOR VEHICLE, MOTOR VEHICLE

Номер: US20200101958A1
Автор: Hoffmann Tobias, Knopp Martin, Thomys Adrian
Принадлежит:

A motor vehicle includes at least one hydraulically actuatable wheel braking device and at least one electric drive motor. A method for operating the vehicle includes monitoring a driver behavior upon an emergency braking operation, and activating the hydraulic wheel braking device for generating a hydraulic emergency braking torque when an emergency braking operation is detected. When the emergency braking torque is detected, the drive motor is also operated as a generator in order to generate an additional electrical emergency braking torque. 18-. (canceled)9. A method for operating a motor vehicle that includes a hydraulically actuatable wheel brake and an electric drive motor , the method comprising:monitoring a driver behavior;based on the monitoring, detecting an emergency braking operation; and generating a hydraulic emergency braking torque by activating the wheel brake; and', 'generating an electrical emergency braking torque by operating the drive motor as a generator., 'in response to the detection of the emergency braking operation10. The method of claim 9 , wherein the operating of the drive motor is such that a maximally possible emergency braking torque is produced.11. The method of claim 10 , wherein the maximally possible emergency braking torque is limited as a function of a wheel slip or of a static friction of the wheels of the motor vehicle on a roadway.123. The method of claim 9 , wherein claim 9 , in the operating the drive motor claim 9 , the drive motor () is activated for generating the electrical emergency braking torque as rapidly as possible.13. The method of claim 9 , wherein the electrical braking torque is reduced as the hydraulic braking torque increases.14. The method of claim 9 , further comprising an energy converter converting electrical energy resulting when the drive motor is operated to heat.15. A control unit for operating a motor vehicle that includes a hydraulically actuatable wheel brake and an electric drive motor claim 9 ...

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Номер записи: 79
07-05-2015 дата публикации

BRAKE FLUID PRESSURE CONTROL UNIT

Номер: US20150123459A1
Автор: OTAKE Tsuyoshi
Принадлежит: ADVICS CO., LTD.

A brake fluid pressure control unit for a vehicle comprises: a hydraulic block that includes a housing containing an internal channel for a first system and an internal channel for a second system, which individually allow communication with a wheel cylinder for a first wheel and a wheel cylinder for a second wheel respectively, and also containing a detected hydraulic pressure inlet hole leading to a pressure receiving part of a pressure sensor. A first hole included in the internal channel for the first system and a second hole included in the internal channel for the second system can selectively be connected to the detected hydraulic pressure inlet hole by machining such that the depth of either the first hole or the second hole is made greater than the other. 18-. (canceled)9. A brake fluid pressure control unit for a vehicle , the unit comprising: a hydraulic block that includes a housing containing an internal channel for a first system and an internal channel for a second system by which incorporated pumps and corresponding external pressurizing sources are allowed to individually communicate with a wheel cylinder for a first wheel and a wheel cylinder for a second wheel , respectively , via corresponding pressure increase valves , and also containing a detected hydraulic pressure inlet hole leading to a pressure receiving part of a pressure sensor , wherein the internal channel for the first system and the internal channel for the second system can selectively be connected to the detected hydraulic pressure inlet hole by machining such that the depth of either one of first and second holes composing the corresponding internal channels is made greater than the other , wherein the housing has , in one end face thereof , pressure increase valve accommodating holes , pressure reduction valve accommodating holes , and a pressure sensor accommodating hole , and has , in both side faces thereof , two opposite pump accommodating holes , wherein the housing also has ...

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Номер записи: 80
07-05-2015 дата публикации

VALVE ASSEMBLY

Номер: US20150123460A1
Автор: Potter Laurence John, Prescott Robert David, Shaw Edward Gilbert
Принадлежит:

A valve assembly including a housing and a first movable member which divides the housing into a control chamber and a main chamber. A second movable member has a first valve part and a second valve part and is movable to engage the first valve part with a corresponding inlet valve part to substantially prevent flow of fluid into the main chamber via an inlet port. The first movable member is provided with an exhaust valve part and is movable to engage the second valve part of the second movable member to substantially prevent flow of pressurised fluid out of the main chamber via an exhaust port. A support part is secured relative to the housing, there being a first seal between the second movable member and the support part and a second seal between the support part and the first movable member. 1. A valve assembly including a housing and a first movable member which divides the housing into a control chamber and a main chamber , the housing being provided with an inlet port , a delivery port and an exhaust port which connect the main chamber with the exterior of the housing , the valve assembly further including a second movable member which has a first valve part and a second valve part and which is movable parallel to an axis of the valve assembly to engage the first valve part with a corresponding inlet valve part secured relative to the housing , engagement of the first valve part with the inlet valve part substantially preventing flow of fluid into the main chamber via the inlet port , the first movable member being provided with an exhaust valve part and movable so that the exhaust valve part engages with the second valve part of the second movable member , engagement of the exhaust valve part with the second valve part substantially preventing flow of pressurised fluid out of the main chamber via the exhaust port , characterised in that the valve assembly is further provided with a support part , there being a first seal between the second movable member ...

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Номер записи: 81
04-05-2017 дата публикации

Pressure Control Valve Arrangement Having an Eccentrically Mounted Double Magnet

Номер: US20170120881A1
Автор: Brenner Dirk, Grebe Jan, Jaehns Harald, Rohn Wolfgang, Weippert Jochen
Принадлежит:

A pressure control valve arrangement for controlling fluid pressure in a brake system of a vehicle includes two diaphragm valves and two electromagnetic control valves, activatable by an electronic control device, for the pilot control of the diaphragm valves. The two electromagnetic control valves have a double magnet with two magnet coils and magnet armatures and are actuatable by current being applied to the magnet coils. The housing has at least one pressure medium connection, connected to a service brake valve, for acting with pressure upon and/or relieving the pressure of the pressure control valve arrangement and at least one connection for connecting to a brake cylinder. A plane of symmetry of the mid-axes of the magnet coils of the double magnet is arranged in parallel and offset by the amount of an eccentricity, with respect to a mid-axis of the pressure medium connection. 1. A pressure control valve for a brake system comprising:a housing; the housing having a service brake pressure connection having a mid-axis;a first diaphragm valve in the housing;a second diaphragm valve in the housing;a first electromagnetic valve in the housing having a first magnetic coil;a second electromagnetic valve in the housing having a second magnetic coil; the first magnetic coil and the second magnetic coil having a coil plane of symmetry parallel to the mid-axis of the service brake pressure connection; wherein the coil plane of symmetry is offset by an eccentricity value with respect to the mid axis of the service brake pressure connection.2. The pressure control valve of claim 1 , the housing further comprising a mounting bore having a mounting bore mid-axis claim 1 , wherein the mounting bore mid-axis is perpendicular to and offset by the eccentricity value from the coil plane of symmetry.3. The pressure control valve of claim 1 , wherein the eccentricity value is greater than about one millimeter.4. The pressure control valve of claim 1 , further comprising a first ...

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Номер записи: 82
14-05-2015 дата публикации

VALVE ASSEMBLY FOR RAIL VEHICLES AND PNEUMATIC SYSTEM INCLUDING SAME

Номер: US20150128826A1
Автор: Sachan Naveen S.
Принадлежит: Firestone Industrial Products Company, LLC

A valve assembly is dimensioned for interconnection between a pressurized gas supply system and a pressurized gas braking system of a rail vehicle. The valve assembly can include a valve housing and a valve body. The valve housing can include a housing wall that at least partially defines a housing chamber and includes a plurality of communication ports in fluid communication with the housing chamber. The valve body is supported within the housing chamber for sliding movement relative to the housing wall. The valve body can be displaced between a plurality of positions in which different ones of the communication ports are in fluid communication with one another. A pressurized gas system and a rail vehicle are also included. 1. A valve assembly dimensioned for interconnection between an associated pressurized gas supply system and an associated pressurized gas braking system of an associated rail vehicle , said valve assembly comprising:a valve housing including a housing wall that at least partially defines a housing chamber having a chamber length, said valve housing also including at least first, second, third, fourth and fifth communication ports in fluid communication with said housing chamber and arranged such that said second and third communication ports are disposed in spaced relation to one another in a lengthwise direction and said first communication port is disposed between said second and third communication ports in said lengthwise direction; and, in a first condition of said valve assembly, said valve body is in said first position and said first communication port is fluidically isolated from said fourth and fifth communication ports; and,', 'in a second condition of said valve assembly, said valve body is in one of said second and third positions and said first communication port is in fluid communication with at least one of said fourth and fifth communication ports., 'a valve body having a longitudinal length and including an intermediate body ...

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Номер записи: 83
25-04-2019 дата публикации

CHECK VALVE

Номер: US20190120392A1
Автор: Lee Chung Jae
Принадлежит:

Provided is a check valve installed in a bore of a modulator block having an inlet path and an outlet path to control a flow of oil in one direction, the check valve including: a valve housing provided with a path hole passing through at a central portion thereof to have an upper end and a lower end thereof open to communicate with the inlet path and the outlet path, and a flange portion protruding from a circumference of an outer surface of the valve housing such that the valve housing is fixed to the bore; a spring retainer coupled to one of the open upper and lower ends of the valve housing which is adjacent to the outlet path, and having an outlet port communicating with the outlet path; a plunger movably installed in the path hole while being elastically supported by a spring supported on the spring retainer, and configured to open or close the path hole according to an up and down movement of the plunger; and a lip seal having a lip portion interposed between the plunger and the valve housing to prevent oil from flowing backward toward the inlet path from the outlet path. 1. A check valve installed in a bore of a modulator block having an inlet path and an outlet path to control a flow of oil in one direction , the check valve comprising:a valve housing provided with a path hole passing through at a central portion thereof to have an upper end and a lower end thereof open to communicate with the inlet path and the outlet path, and a flange portion protruding from a circumference of an outer surface of the valve housing such that the valve housing is fixed to the bore;a spring retainer coupled to one of the open upper and lower ends of the valve housing which is adjacent to the outlet path, and having an outlet port communicating with the outlet path;a plunger movably installed in the path hole while being elastically supported by a spring supported on the spring retainer, and configured to open or close the path hole according to an up and down movement of the ...

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Номер записи: 84
27-05-2021 дата публикации

Hydraulic System

Номер: US20210156403A1
Автор: Martinson Richard, Rushton Tom
Принадлежит: J. C. Bamford Excavators Limited

A hydraulic system for an electric working vehicle or hybrid working vehicle of the kind having an electric source of power and an alternative source of power, the hydraulic system comprising: one or more hydraulically actuated devices; and a hydraulic pump configured to supply hydraulic fluid to the one or more hydraulically actuated devices; wherein the hydraulic pump is configured to operate in a low output state when a flow of hydraulic fluid is not required by the one or more hydraulically actuated devices; and wherein the hydraulic system is configured to use hydraulic fluid supplied by the hydraulic pump in the low output state for one or more auxiliary functions of the hydraulic system. 1. A hydraulic system for an electric working vehicle or hybrid working vehicle of the kind having an electric source of power and an alternative source of power , the hydraulic system comprising:one or more hydraulically actuated devices; anda hydraulic pump configured to supply hydraulic fluid to the one or more hydraulically actuated devices;wherein the hydraulic pump is configured to operate in a low output state when a flow of hydraulic fluid is not required by the one or more hydraulically actuated devices; andwherein the hydraulic system is configured to use hydraulic fluid supplied by the hydraulic pump in the low output state for one or more auxiliary functions of the hydraulic system.2. A hydraulic system according to claim 1 , wherein the hydraulic pump is configured to operate in a higher output state when a flow of hydraulic fluid is required by one or more of the hydraulically actuated devices claim 1 , and wherein the output of the hydraulic pump in the higher output state is the lesser of: the flow rate of hydraulic fluid required by the one or more hydraulically actuated devices; and the maximum output flow rate of the hydraulic pump.3. A hydraulic system according to claim 1 , wherein one of the one or more hydraulically actuated devices is a hydraulic power ...

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Номер записи: 85
14-05-2015 дата публикации

METHOD FOR CONTROLLING A COMPRESSED-AIR BRAKING DEVICE OF A RAIL VEHICLE IN THE CASE OF AUTOMATIC, QUICK, OR EMERGENCY BRAKING

Номер: US20150134157A1
Автор: Aurich Stefan, Grunwald Torsten, Seidenschwang Alexander
Принадлежит:

A method controls a compressed-air braking device of a rail vehicle in the case of automatic, quick, or emergency braking, said compressed-air braking device having a controlled electropneumatic braking device having brake pressure control, an uncontrolled brake pressure control device for producing an uncontrolled brake pressure, and at least one pneumatic brake actuator. In response to a signal to trigger automatic, quick, or emergency braking, the controlled electropneumatic braking device and the uncontrolled brake pressure control device are activated simultaneously and a first value for the brake pressure produced by the controlled electropneumatic braking device or a first value for a pilot control pressure representing the brake pressure and a second value for the brake pressure produced by the uncontrolled brake pressure control device or a second value for a pilot control pressure representing the brake pressure are compared with each other. 1. A method for controlling a compressed-air braking device of a rail vehicle , the compressed-air braking device having a regulated electropneumatic braking device with brake pressure regulation and an unregulated brake pressure control device for generating an unregulated brake pressure as well as at least one pneumatic brake actuator , the method comprising , in response to a signal for triggering automatic , rapid or emergency braking:simultaneously activating the regulated electropneumatic braking device and the unregulated brake pressure control device; andcomparing a first value for the brake pressure generated by the regulated, electropneumatic braking device or a first value for a pilot-controlled pressure representing this brake pressure and a second value for the brake pressure generated by the unregulated brake pressure control device or a second value for a pilot-controlled pressure representing this brake pressure with one another, wherein this comparison is carried out by applying the first value and the ...

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Номер записи: 86
01-09-2022 дата публикации

FAIL-SAFE VALVE UNIT, ELECTRONICALLY CONTROLLABLE PNEUMATIC BRAKE SYSTEM, METHOD FOR OPERATING A BRAKE SYSTEM

Номер: US20220274573A1
Автор: OTREMBA Robert, VAN THIEL Julian
Принадлежит:

A fail-safety valve unit is for a failure braking function of a pneumatic braking system for a vehicle. The fail-safety valve unit has a first and a second failure brake valve configured as monostable valves, and a main line which pneumatically connects a main port, which provides a first pressure, and a failure port. The first and second failure brake valves are connected pneumatically in series in the main line. The first and the second failure brake valves are controllable by different control units. The failure brake valves are open in an open position when not actuated such that the first pressure prevailing at the main port is provided as a failure brake pressure at the failure port such that, in a fault situation, in an electrical failure, and/or in a diagnostic situation, a failure braking operation is triggered via provision of the failure brake pressure at the failure port. 1. A fail-safety valve unit for a failure braking function of an electronically controllable pneumatic braking system for a vehicle , wherein the braking system has a first control unit and a second control unit which can at least one of be supplied with power independently of one another and at least partially replace one another in terms of a function , the fail-safety valve unit comprising:a first failure brake valve configured as a monostable valve;a second failure brake valve configured as a monostable valve;a valve main line pneumatically connecting a main port configured to provide a first pressure and a failure brake port;said first failure brake valve and said second failure brake valve being connected pneumatically in series in said valve main line;said first failure brake valve being configured to be controllable by the first control unit and said second failure brake valve being configured to be controllable by the second control unit; and,said first failure brake valve and said second failure brake valve being open in an open position when not actuated such that the first ...

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Номер записи: 87
01-09-2022 дата публикации

Emergency Brake Device for a Rail Vehicle

Номер: US20220274579A1
Автор: HAUBENHOFER Martin, MADJDI Mehrdad, SCHMIDT Rudolf
Принадлежит:

An emergency brake device for a rail vehicle includes a compressed-air-brake system, wherein a braking process can be initiated by lowering the air pressure in a main air conduit and which includes an exclusively electric connection to a passenger emergency brake. 13.-. (canceled)4. An emergency brake device for a rail vehicle with a compressed air brake facility , in which braking is causable by lowering air pressure in a main air line , the emergency brake device comprising:at least one passenger emergency brake comprising a manually actuatable passenger emergency brake handle, which acts on a first electrical opening contact and a first closing contact;a bistable, electromagnetically actuatable compressed air valve which is configured to vent the main air line into open air and which comprises an opening magnetic drive and a closing magnetic drive;an opening relay comprising a second electrical opening contact and a second closing contact;a closing relay comprising a third electrical opening contact and a third closing contact, inputs of the first electrical opening contact and the first closing contact being connected to a supply voltage, an output of the first electrical opening contact being guided to a first electrical drive of the opening relay and an output of the first closing contact being guided to a second electrical drive of the closing relay;wherein inputs of the second electrical opening contact and the second closing contact of the opening relay are connected to the supply voltage;wherein an output of the second electrical closing contact of the opening relay is guided to an input of the third electrical opening contact of the closing relay;wherein an input of the third closing contact of the closing relay is connected to the supply voltage;wherein an output of the third electrical opening contact of the closing relay is guided to the closing magnetic drive of the bistable, electromagnetically actuatable compressed air valve; andwherein both the ...

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Номер записи: 88
03-06-2021 дата публикации

Hydraulic Braking System for a Vehicle and Corresponding Operating Method

Номер: US20210162975A1
Автор: Ambrosi Massimiliano, Eisenlauer Michael, Kurz Edgar, Schuller Wolfgang, Stahr Wolf
Принадлежит:

A hydraulic braking system for a vehicle includes a master brake cylinder, a hydraulic unit and a plurality of wheel brakes, the hydraulic unit including at least one brake circuit for brake pressure modulation in the wheel brakes. A bistable solenoid valve is associated with at least one wheel brake, which valve is looped into the corresponding fluid channel, immediately upstream of the associated wheel brake, and in a de-energized open position enables brake pressure modulation in the associated wheel brake, and in a de-energized closed position seals a current brake pressure in the associated wheel brake, wherein a hydraulic force brought about by the sealed-in brake pressure acts in a seat-opening manner in the corresponding bistable solenoid valve. 1. A hydraulic brake system for a vehicle , comprising:a brake master cylinder;a plurality of wheel brakes; anda hydraulic unit comprising at least one brake circuit configured to modulate brake pressure in the wheel brakes,a bistable solenoid valve assigned to at least one wheel brake of the plurality of wheel brakes, the bistable solenoid valve looped into a corresponding fluid duct directly upstream of the associated wheel brake and, in a currentless open position, the bistable solenoid valve enables the brake pressure modulation in the associated wheel brake and, in a currentless closed position, the bistable solenoid valve encloses a current brake pressure in the associated wheel brake, a hydraulic force which is brought about by way of the enclosed brake pressure having a seat-opening effect in the bistable solenoid valve.2. The hydraulic brake system as claimed in claim 1 , wherein the bistable solenoid valve has a positive pressure function which opens the bistable solenoid valve in the currentless closed position and brings about a pressure equalization if the current brake pressure which is enclosed in the corresponding wheel brake exceeds a predefined first threshold value.3. The hydraulic brake system as ...

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Номер записи: 89
03-06-2021 дата публикации

REVERSE MODULATION VALVE ASSEMBLY INCLUDING DEADBAND STATE

Номер: US20210165431A1
Автор: BACKES Peter, GROTZ Nathan, TOMHAVE Derek
Принадлежит:

A valve assembly is provided. The valve assembly includes a valve body defining a bore. The valve assembly further includes a pull rod disposed in the bore and defining a bolt cavity. The pull rod is moveable between a first pull rod position and a second pull rod position. The valve assembly further includes a bolt disposed in the bolt cavity and moveable with respect to the pull rod between a first bolt position and a second bolt position. The valve assembly further includes a spool disposed in the bore. The spool is operatively coupled to the pull rod to move between an energized position and a neutral position. 1. A valve assembly , comprising:a valve body defining a bore;a pull rod disposed in the bore and defining a bolt cavity, the pull rod moveable between a first pull rod position and a second pull rod position;a bolt disposed in the bolt cavity and moveable with respect to the pull rod between a first bolt position and a second bolt position; anda spool disposed in the bore, the spool operatively coupled to the pull rod to move between an energized position and a neutral position.2. The valve assembly of claim 1 , wherein the pull rod comprises a nut claim 1 , the bolt has a bolt shoulder spaced from the nut claim 1 , and a return spring is disposed between the nut and the bolt shoulder with the return spring exhibiting a return spring force on the bolt to bias the bolt toward the first bolt position.3. The valve assembly of further comprising a biasing spring exhibiting a biasing spring force on the pull rod to bias the pull rod toward the first pull rod position claim 2 , wherein the bolt is configured to move to the second bolt position prior to the pull rod moving to the second pull rod position due to a ratio of the return spring force and the biasing spring force.4. The valve assembly of claim 2 , wherein the nut defines a hole having a hole diameter claim 2 , the bolt extends therethrough and is moveable with respect to the nut.5. The valve assembly ...

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Номер записи: 90
18-05-2017 дата публикации

Parking Brake Controller and Method to Maintain a Trailer Air Supply

Номер: US20170137002A1
Автор: Carritte Timothy, JR. Thomas S., MILLER, Taneyhill David J
Принадлежит: BENDIX COMMERCIAL VEHICLE SYSTEMS LLC

A controller for a parking brake system for a commercial vehicle is disclosed. The controller receives a signal indicative of a request to park a tractor, a signal indicative of a request to supply air to a trailer and a signal indicative of a vehicle operating condition. The controller transmits a control signal to a tractor parking brake device and a trailer air supply device in order to park the tractor and maintain the air supply to the trailer to suspend the parking of the trailer in response to the signals. 1. A controller for a parking brake system for a commercial vehicle comprising:a first input for receiving a signal indicative of a request to park a tractor;a second input for receiving a signal indicative of a request to supply air to a trailer;a first output for transmitting a tractor park control signal;a second output for transmitting a trailer supply control signal; and transmitting a trailer supply control signal to maintain the trailer air supply in response to the signal indicative of the request to supply air to the trailer being received prior to the signal indicative of a request to park the tractor; and', 'transmitting a tractor park control signal in response to the signal indicative of a request to park the tractor., 'control logic, the control logic capable of'}2. The controller as in claim 1 , further comprising: a third input for receiving a signal indicative of a vehicle operating condition; wherein the control logic is further capable of transmitting the trailer supply control signal to maintain the air supply to the trailer in response to the signal indicative of the vehicle operating condition.3. The controller as in claim 2 , wherein the control logic is further capable of: recording the signal indicative of a request to park a tractor; the signal indicative of a request to supply air to a trailer and the signal indicative of the vehicle operating condition meeting a predetermined condition.4. The controller as in claim 1 , further ...

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Номер записи: 91
08-09-2022 дата публикации

VEHICLE BRAKING SYSTEM

Номер: US20220281428A1
Автор: Stone Nick, Zeoli Joseph
Принадлежит:

A braking system for a vehicle including front and rear wheels having wheel brakes includes a fluid displacement mechanism for supplying brake fluid to at least one of the wheel brakes. The fluid displacement mechanism includes a piston having a first position prior to braking and a second position for applying braking. A fluid accumulator is in fluid communication with the fluid displacement mechanism and stores brake fluid. A valve is in fluid communication with the fluid displacement mechanism and the accumulator and is configured to be closed while the piston moves from the second position towards the first position to prevent depletion of the accumulator. 1. A braking system for a vehicle including front and rear wheels having wheel brakes , comprising:a fluid displacement mechanism for supplying brake fluid to at least one of the wheel brakes and including a piston having a first position prior to applying braking and a second position for applying braking;a fluid accumulator in fluid communication with the double acting piston assembly and storing brake fluid at atmospheric pressure; anda valve in fluid communication with the fluid displacement mechanism and the accumulator and configured to be closed while the piston moves from the second position towards the first position to prevent depletion of the accumulator.2. The braking system of claim 1 , wherein the valve comprises a bypass valve fluidly connected to the fluid displacement mechanism claim 1 , one of the wheel brakes claim 1 , and the accumulator.3. The braking system of claim 1 , further comprising a relief valve claim 1 , wherein the valve is provided in and closes a reverse flow path from the accumulator claim 1 , through the relief valve claim 1 , through the valve claim 1 , and back to the double acting piston assembly.4. The braking system of claim 3 , wherein the relief valve and the valve are fluidly connected in parallel with one another.5. The braking system of claim 1 , wherein the valve ...

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Номер записи: 92
28-05-2015 дата публикации

VACUUM BRAKE BOOSTER VACUUM ENHANCER

Номер: US20150147196A1
Автор: Chahal Harbind S., Evans, JR. Charles K.
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

A vacuum enhancer having four apertures, one of which is open to the atmosphere, wherein a piston selectively restricts fluid flow through an ejector based on a pressure differential between a vacuum chamber within the vacuum booster and true atmospheric pressure. 1. A brake booster vacuum enhancer comprising:{'b': 1', '2', '3', '4, 'a housing defining an aperture- connectable to a booster, an aperture- connectable to an intake manifold, an aperture- connectable to an intake air-duct, and an aperture- open to the atmosphere;'}{'b': 1', '2, 'a check-valve disposed between aperture- and aperture-;'}{'b': 2', '3, 'an ejector disposed between aperture- and aperture-; and'}{'b': 3', '4', '1', '4, 'a piston disposed between aperture- and aperture- configured to selectively restrict fluid flow through the ejector based on pressure differential between aperture- and aperture-.'}2344. The vacuum enhancer of further comprising a piston spring disposed between aperture- and aperture- and in contact with the piston to bias the piston toward aperture-.314. The vacuum enhancer of wherein the pressure differential between aperture- and aperature- is the difference between the atmosphere and a vacuum in the booster claim 2 , and the piston spring has a spring force selected to selectively restrict fluid flow through the ejector based on a predetermined vacuum level in the booster.434. The vacuum enhancer of further comprising at least one O-ring disposed around the piston to restrict fluid flow between aperture- and aperture-.5. A vacuum enhancer for a brake booster comprising:an ejector passage capable of enhancing a vacuum in the booster via a fluid connection from an intake air-duct to an intake manifold; anda piston assembly having a first surface open to atmosphere and a second surface in fluid communication with the booster to selectively restrict fluid flow through the ejector passage at a predetermined pressure differential between the first and second surfaces.6. The ...

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Номер записи: 93
07-08-2014 дата публикации

BRAKE CONTROL DEVICE FOR A BRAKE SYSTEM, BRAKE SYSTEM, RAIL VEHICLE AND METHOD FOR OPERATING A BRAKE SYSTEM

Номер: US20140222258A1
Автор: ELSTORPFF Marc-Gregory, Haupt Robert, Rau Rainer
Принадлежит: KNORR-BREMSE SYSTEME FÜR SCHIENENFAHRZEUGE GMBH

A brake control device for a brake system for a rail vehicle, the brake system having at least one adhesion-type friction brake device. The brake control device receives brake actuation data, which are assigned to the at least one adhesion-type friction brake device, from a brake actuation sensor device of the brake system. The brake control device receives brake action data, which are assigned to the at least one adhesion-type friction brake device, from a brake action sensor device of the brake system, and to cause the adhesion-type friction brake device to effect a braking process, and to monitor and assign brake actuation data and brake action data to each other during a braking process. Also disclosed is a brake system, a rail vehicle and a method for operating a brake system. 1. A brake control device for a brake system for a rail vehicle , wherein the brake system comprises at least one adhesion-based friction brake apparatus , andwherein the brake control device receives brake actuation data associated with the at least one adhesion-based friction brake apparatus from a brake actuation sensor device of the brake system;wherein the brake control device receives brake action data associated with the at least one adhesion-based friction brake apparatus from a brake action sensor device of the brake system; andwherein the brake control device actuates the adhesion-based friction brake apparatus for a braking operation and associates brake actuation data and brake action data with one another, and monitors the data during a braking operation.2. The brake control device of claim 1 , wherein the braking operation is a test braking operation.3. The brake control device of claim 2 , wherein the brake control device performs a test braking operation during travel.4. The brake control device of claim 1 , wherein the adhesion-based friction brake apparatus has multiple friction brake devices actuated separately from one another by the brake control device.5. The brake ...

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Номер записи: 94
30-04-2020 дата публикации

HYDRAULIC BRAKING DEVICE

Номер: US20200130664A1
Автор: HISADA Yoshitake, INO Tsuyoshi, KOYAMA Fumitoshi, SASAKI Shin
Принадлежит: ADVICS CO., LTD.

The present invention pertains to a hydraulic braking device which is provided with: a housing; a pump disposed within the housing; a motor that drives the pump; a plurality of solenoid valves disposed within the housing; WC ports that are provided to the housing and connected to wheel cylinders; and flow channels provided within the housing to connect between the pump, the solenoid valves and the WC ports, and in which the motor and the solenoid valves are controlled such that fluid pressure is generated in the wheel cylinders. The hydraulic braking device is further provided with a Helmholtz damper that is disposed within the housing to be connected to the flow channels and reduces pulses generated by the driving of the pump. 1. A hydraulic braking device comprising: a housing; a pump disposed in the housing; a motor for driving the pump; a plurality of solenoid valves disposed in the housing; a wheel cylinder port provided in the housing and connected to a wheel cylinder; and a flow channel provided in the housing to connect the pump , the plurality of solenoid valves , and the wheel cylinder port ,the motor and the plurality of solenoid valves being controlled to generate fluid pressure in the wheel cylinder,the hydraulic braking device comprising:a Helmholtz type damper disposed in the housing and connected to the flow channel to reduce pulsation generated by driving of the pump using a principle of Helmholtz resonance.2. The hydraulic braking device according to claim 1 , further comprising:a master cylinder port provided in the housing and connected to a master cylinder, and a reservoir disposed in the housing,whereinthe flow channel includes a main flow channel that connects the wheel cylinder port and the master cylinder port, a pressure decreasing flow channel that connects the wheel cylinder port and the reservoir, and a discharge flow channel that connects a discharge valve of the pump and a connecting portion on the main flow channel;the plurality of ...

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Номер записи: 95
14-08-2014 дата публикации

BRAKE CONTROL DEVICE FOR A BRAKE SYSTEM OF A RAIL VEHICLE, BRAKE SYSTEM, RAIL VEHICLE AND METHOD FOR OPERATING A BRAKE CONTROL DEVICE

Номер: US20140229042A1
Автор: ELSTORPFF Marc-Gregory, Nock Marco, Van De Löcht Miriam
Принадлежит: KNORR-BREMSE SYSTEME FÜR SCHIENENFAHRZEUGE GMBH

A brake control device for a brake system of a rail vehicle, wherein the brake control device detects strain during a braking process on at least one friction brake device actuated during the braking process, the brake control device further stores wear data based on the detected strain in a memory device. Also disclosed is a brake system for a rail vehicle having such a brake control device, a rail vehicle having such a brake system and/or such a brake control device, and a method for operating a brake control device for a brake system of a rail vehicle. 1. A brake control device for a brake system of a rail vehicle , which determines a load of at least one friction brake device operated during a braking process;wherein the brake control device is additionally stores wear data based on the determined load in a memory device.2. The brake control device of claim 1 , wherein the brake control device determines the load of a plurality of friction brake devices during a braking process and to stores wear data for each of the friction brake devices claim 1 , which are each assigned to the corresponding friction brake device.3. The brake control device of claim 1 , wherein the brake control device actuates the brake system based on wear data.4. The brake control device of claim 3 , wherein the brake control device actuates a plurality of friction brake devices asymmetrically based on the wear data.5. The brake control device of claim 1 , wherein the brake system is a pneumatic brake system which has at least one pneumatically operable friction brake device.6. The brake control device of claim 1 , wherein the brake control device emits a signal based on the wear data which contains maintenance information relating to the at least one friction brake device.7. The brake control device of claim 1 , wherein the brake control device is connected to a sensor device claim 1 , which enables data to be transmitted to the brake control device claim 1 , based on which the brake ...

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Номер записи: 96
02-06-2016 дата публикации

Method for Controlling a Pneumatic Brake System and a Pneumatic Brake System for a Vehicle

Номер: US20160152222A1
Автор: Lenz Thomas, Roters Gerd
Принадлежит:

The application discloses a method for controlling a pneumatic brake system of a vehicle. The method includes the step of modulating a pilot-control brake pressure by means of an electropneumatic pilot-control valve in venting phases and bleeding phases. The method also includes the step of feeding in the pilot-control pressure via a pilot-control line for outputting a brake pressure to wheel brakes of the vehicle. 1. A method for controlling a pneumatic brake system of a vehicle , said method including the steps of:modulating a pilot-control brake pressure by means of an electropneumatic pilot-control valve in venting phases and bleeding phases; and{'b': '1', 'feeding in the pilot-control pressure via a pilot-control line for outputting a brake pressure to wheel brakes of the vehicle ();'}wherein the pilot-control valve is modulated from a bled state in alternating venting phases and bleeding phases in order to automatically modulate a median pilot-control pressure level, in such a way that the pilot-control pressure is increased in the venting phases, and decreased in the bleeding phases.2. The method as claimed in claim 1 , wherein the pilot-control pressure is fed to at least one check valve claim 1 , via the pilot-control line claim 1 , in order to output the brake pressure from the check valve to the wheel brakes of the vehicle.3. The method as claimed in claim 2 , wherein the pilot-control pressure which is outputted by the pilot-control valve is subsequently outputted as a fed-through pilot-control pressure to the at least one check valve via a select-high valve and/or a relay valve.4. The method as claimed in claim 2 , wherein the check valve is set to the following operating phases by means of brake signals claim 2 , in order to set the brake pressure:the open position for increasing the pressure or reducing the pressure via the pilot-control line; andthe closed position for maintaining the pressure, and the bleeding position for decreasing the pressure.5. ...

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Номер записи: 97
15-09-2022 дата публикации

METHOD FOR OPERATING AN ELECTROPNEUMATIC PARKING BRAKE MODULE, ELECTROPNEUMATIC PARKING BRAKE MODULE, ELECTRONICALLY CONTROLLABLE PNEUMATIC BRAKE SYSTEM, VEHICLE

Номер: US20220289159A1
Автор: VAN THIEL Julian
Принадлежит:

The disclosure relates to a method for operating an electropneumatic parking brake module for an electronically controllable pneumatic brake system for a vehicle, in particular a commercial vehicle, having a supply port for receiving a supply pressure, at least one parking brake port for the connection of at least one parking brake cylinder, a main valve assembly which receives the supply pressure and is configured to output a spring brake pressure at the parking brake port in dependence on a control pressure, and a pilot valve assembly which receives the supply pressure and is to provide the control pressure, wherein the pilot valve assembly has a bistable valve which can be switched between a first air admission position and a second air release position, and a control unit for providing first and second switch signals to the pilot valve assembly. 1. A method for operating an electropneumatic parking brake module for an electronically controllable pneumatic brake system for a vehicle having a supply port for receiving a supply pressure and a parking brake port for a connection of at least one parking brake cylinder , the vehicle further having a main valve assembly configured to receive the supply pressure and being configured to output a spring brake pressure at the parking brake port in dependence upon a control pressure , the vehicle further having a pilot valve assembly configured to receive the supply pressure and to provide the control pressure , wherein the pilot valve assembly has a bistable valve which can be switched between a first air admission position and a second air release position , the vehicle having a control unit configured to provide a first switch signal and a second switch signal to the pilot valve assembly , the pilot valve assembly having a monostable holding valve pneumatically connected in series with the bistable valve and arranged in a control line of the main valve assembly , wherein the holding valve is normally open in an open ...

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Номер записи: 98
11-06-2015 дата публикации

HYDRAULIC BRAKING DEVICE

Номер: US20150158473A1
Автор: MATSUNAGA Yoshiteru, Murayama Kazuaki, NAKAMURA Motoyasu
Принадлежит:

Provided is a hydraulic braking device wherein the heat of a driving coil can be absorbed by a base body, and the heat radiation performance is excellent. The hydraulic braking device having a base body that includes therein a fluid passage for brake fluid, includes: a solenoid valve disposed on one surface of the base body; and a driving coil attached around an axis of the solenoid valve, wherein the one surface of the base body is provided with a wall surface facing an outer circumferential surface of the driving coil. A lower surface of the driving coil is in contact with the one surface of the base body, and a clearance is formed between the outer circumferential surface of the driving coil and the wall surface. 1. A hydraulic braking device having a base body that includes therein a fluid passage for brake fluid , comprising:a solenoid valve disposed on one surface of the base body; anda driving coil attached around an axis of the solenoid valve,wherein the one surface of the base body is provided with a wall surface facing an outer circumferential surface of the driving coil.2. The hydraulic braking device according to claim 1 ,wherein a lower surface of the driving coil is in contact with the one surface of the base body.3. The hydraulic braking device according to claim 2 , comprising:a housing for housing the driving coil,wherein an urging means for urging the driving coil toward the one surface of the base body is provided between the housing and the driving coil.4. The hydraulic braking device according to claim 1 ,wherein a clearance is formed between the outer circumferential surface of the driving coil and the wall surface.5. The hydraulic braking device according to claim 1 ,wherein a recessed portion is provided on the one surface of the base body, the recessed portion being arranged around an attaching hole to which the solenoid valve is attached,and wherein the wall surface is formed by a circumferential wall forming the recessed portion. The ...

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Номер записи: 99
11-06-2015 дата публикации

Hydraulic Component, in Particular of a Hydraulic Braking System

Номер: US20150158478A1
Автор: Brenndoerfer Daniel, Eisenlauer Michael, Stahr Wolf
Принадлежит:

A hydraulic component, in particular of a hydraulic braking system, includes a conduit section through which brake fluid flows. The conduit section has at least one reflection surface that is impinged by the brake fluid. 1. A hydraulic component , comprising:a line segment through which brake fluid is configured to flow; andat least one first reflection surface disposed in the line segment and configured such that the brake fluid flows onto the first reflection surface.2. The hydraulic component as claimed in claim 1 ,further comprising at least one second reflection surface disposed in the line segment and configured such that the brake fluid flows onto the second reflection surface, the at least one second reflection surface extending parallel to the at least one first reflection surface.3. The hydraulic component as claimed in claim 1 ,wherein the line segment has a longitudinal extent and the at least one first reflection surface is oriented transversely to the longitudinal extent of the line segment.4. The hydraulic component as claimed in claim 1 , wherein the line segment has a lateral extent and the at least one first reflection surface extends only over a partial region of the lateral extent of the line segment.5. The hydraulic component as claimed in claim 1 , wherein the at least one first reflection surface is disposed in the line segment at a center of the first reflection surface when viewed in the lateral direction of the line segment.6. The hydraulic component as claimed in claim 1 , wherein the at least one first reflection surface is formed on an insert part disposed in the line segment.7. The hydraulic component as claimed in claim 6 , wherein the insert part is formed with a central rod on which the at least one first reflection surface is disposed transversely to the longitudinal extent of the line segment.8. The hydraulic component as claimed in claim 6 , wherein the insert part is formed with a disk inserted in the line segment so as to be ...

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Номер записи: 100