Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 14254. Отображено 100.
02-02-2012 дата публикации

Speed Change Operation Apparatus for Stepless Speed Changer Device

Номер: US20120024100A1
Автор: Akifumi Nishino, Kiyokazu Nakanishi, Shinichi Morita
Принадлежит: Kubota Corp

A speed change operation apparatus includes a pivotal body operatively connected to a trunnion shaft to be pivotally displaced in response to an operational displacement by an operational tool, a positioning body operatively coupled with the pivotal body so as to be pivotally displaced in response to a pivotal displacement of the pivotal body, a main urging mechanism for applying an urging force to the pivotal body via the positioning body for returning the pivotal body from an operational position to the neutral position, and an auxiliary urging mechanism for applying an auxiliary urging force to the pivotal body for returning the pivotal body from the operational position to the neutral position. The returning urging force by the main urging mechanism when the trunnion shaft is located at the neutral position is stronger than the returning urging force by the main urging mechanism when the trunnion shaft is located at the operational position. And, the auxiliary urging force by the auxiliary urging mechanism when the trunnion shaft is located at the neutral position is weaker than the auxiliary urging force by the auxiliary urging mechanism when the trunnion shaft is located at the operational position.

Подробнее
Номер записи: 1
02-02-2012 дата публикации

Gearbox control device

Номер: US20120029776A1
Автор: Ingo Sauter, Joachim Staudinger, Johannes Kemler, Maik Würthner
Принадлежит: ZF FRIEDRICHSHAFEN AG

A transmission control device ( 6 ) for an automatic or automated transmission ( 2 ). A shifting strategy of the transmission control device ( 6 ) controls and/or regulates the operation of the transmission ( 2 ) based on driving condition data such as vehicle mass, driving resistance, vehicle inclination, vehicle velocity, vehicle acceleration, engine rotational speed and/or engine torque, and based on data about the driver's wishes. The transmission control device ( 6 ) continuously calculates the driving condition data of the vehicle mass, driving resistance and/or vehicle inclination based on topographic data of a current position of the motor vehicle, and/or the shifting strategy determines a gear change from an actual gear into a target gear based on topographic data of a defined distance ahead of a motor vehicle. The defined distance ahead of the motor vehicle depends on the currently velocity of the vehicle.

Подробнее
Номер записи: 2
02-02-2012 дата публикации

Gear preselect systems for a dual clutch transmission

Номер: US20120029777A1
Автор: Donald D. Crites, Xuefeng Tim Tao
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A dual-clutch transmission (DCT) system includes a vehicle speed offset module that generates a vehicle speed offset signal based on a preselect time and a vehicle acceleration signal. A compensated vehicle speed module generates a compensated vehicle speed based on the vehicle speed offset signal and a vehicle speed. A preselect command module generates a predicted gear signal based on a comparison between the compensated vehicle speed and a shift point from a shift pattern module. The predicted gear signal, identifies a first predicted gear of a DCT. The preselect time is defined as at least an amount of time to disengage a second predicted gear and preengage the first predicted gear.

Подробнее
Номер записи: 3
02-02-2012 дата публикации

Method for operating a transmission device with a plurality of friction-locking and positive-locking shifting elements

Номер: US20120029778A1
Автор: Georg Mihatsch, Jörg ARNOLD, Valentine Herbeth
Принадлежит: ZF FRIEDRICHSHAFEN AG

A method of operating a transmission device comprising friction-locking and form-locking shift elements for obtaining different gear ratios. A shift request for engaging a shift element undergoes a time delay dependent upon an operating state prior to a time of engagement of the shift element. A rotational speed differential between halves of the shift element lies within a rotational speed differential window required for the engagement procedure is assigned to the time of engagement. A gradient of the transmission input speed is ascertained at the time of the shift request, and the actual gradient is subsequently monitored and compared with the gradient that existed at the time of the shift request. If an absolute deviation greater than a threshold value is ascertained, the time delay is changed or an actuation of another shift element to be disengaged is varied such that the deviation is reduced below the threshold value.

Подробнее
Номер записи: 4
08-03-2012 дата публикации

Continuously variable transmission and power on/off determination method

Номер: US20120059558A1
Автор: Hiroyasu Tanaka, Mamiko Inoue, Masahide Ito, Masato Mori, Ryousuke Nonomura, Seiichiro Takahashi, Takashi Eguchi
Принадлежит: JATCO Ltd

In a manual mode, a gear position of a continuously variable transmission is selected based on an input operation from a driver, a final through speed ratio is set based on the selected gear position and a variator and a sub-transmission mechanism are controlled to realize the final through speed ratio. Whether an input torque to the sub-transmission mechanism is positive or negative is determined based on an input torque to the sub-transmission mechanism when the manual mode is selected.

Подробнее
Номер записи: 5
15-03-2012 дата публикации

System and method for controlling power downshifts of a transmission

Номер: US20120065849A1
Автор: Todd J. Thor
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system for controlling power downshifts of a transmission includes a flare generation module, a flare control module, and a shift control module. The flare generation module generates turbine speed flare by decreasing pressure applied to an off-going clutch of the transmission. The flare control module decreases the turbine speed flare by increasing the pressure applied to the off-going clutch of the transmission. The shift control module increases a pressure applied to an on-coming clutch of the transmission when the turbine speed flare is less than a predetermined amount from a desired turbine speed flare.

Подробнее
Номер записи: 6
05-04-2012 дата публикации

Continuously variable transmission and shift control method

Номер: US20120083977A1
Автор: Hiroyasu Tanaka, Mamiko Inoue, Ryousuke Nonomura, Seiichiro Takahashi, Takashi Eguchi, Takuichiro Inoue
Принадлежит: JATCO Ltd

Continuously variable transmission includes: a variator; a stepwise auxiliary transmission mechanism; and a shift controller configured to set a desired through transmission ratio based on the calculated desired target rotational speed, the shift control section including; a slope road upshift prohibiting section configured to prohibit upshift of the auxiliary transmission mechanism when the vehicle runs on a slope road, and a slope road upshift section configured to upshift the auxiliary transmission mechanism when the vehicle runs in a predetermined running state when the slope road upshift prohibiting section prohibits upshift of the auxiliary transmission mechanism, and to perform the shift of the auxiliary transmission mechanism while the transmission ratio of the variator is varied in accordance with the variation of the transmission ratio of the auxiliary transmission mechanism to prevent varying the through transmission ratio even when the vehicle runs on the slope road.

Подробнее
Номер записи: 7
19-04-2012 дата публикации

Motor Control Device for Working Vehicle

Номер: US20120094801A1
Автор: Kazuo Chounan, Koji Hyodo, Masaki Yoshikawa
Принадлежит: HITACHI CONSTRUCTION MACHINERY CO LTD

A motor control device for a working vehicle includes: a travel drive device that transmits rotation of a motor to wheels through a torque converter; a first selection device to be operated so as to select one of a power mode and an economy mode; a second selection device that is different from the first selection device; a mode switching device that switches from the economy mode to the power mode if the second selection device is operated in a state where the economy mode has been selected by the first selection device; and a speed restriction device that, when the economy mode is set, restricts a maximum rotational speed of the motor to a lower speed side than that when the power mode is set.

Подробнее
Номер записи: 8
03-05-2012 дата публикации

Driveline lash management in powertrain systems

Номер: US20120109474A1
Автор: Gil J. Mendoza, R. Anthony Hansen, Robert L. Morris
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A powertrain system includes a torque machine mechanically rotatably coupled via a transfer gear set to a drive wheel. The transfer gear set includes a first gear meshingly engaged to a second gear with lash angle between the first and second gears. A method for operating the powertrain system includes monitoring an output speed associated with the torque machine and a wheel speed associated with the drive wheel. A transition between a first torque transfer state and a second torque transfer state is detected, the transition including a gear lash event across the transfer gear set. An elapsed time period for completing the gear lash event across the transfer gear set during the transition between the first torque transfer state and the second torque transfer state is set, and a target output speed derived from the wheel speed during and at the end of the elapsed time period is determined. A preferred output speed profile during the gear lash event is also determined, and includes prescribed changes in the output speed associated with phase-shifting the lash angle from a minimum lash angle to a maximum lash angle. The output speed is adjusted to be substantially equal to the target output speed at the end of the elapsed time period. The torque machine is controlled to achieve the preferred output speed profile.

Подробнее
Номер записи: 9
17-05-2012 дата публикации

Method and apparatus for extracting energy from a fluctuating energy flow from a renewable energy source

Номер: US20120117958A1
Автор: Daniil Sergeevich Dumnov, Michael Richard Fielding, Niall James Caldwell
Принадлежит: Artemis Intelligent Power Ltd

In an energy extraction device and method for extracting energy from a fluctuating energy flow from a renewable energy source, a hydraulic pump is driven by a rotating shaft, driven in turn by a renewable energy source. A hydraulic motor drives a load and a high pressure manifold communicates between the pump, motor and an elastically deformable fluid retaining body. The hydraulic pump and hydraulic motor comprise working chambers displacing a volume of working fluid selectable on each cycle of working chamber volume by the control of electronic valves. The pressure in the high pressure manifold is measured and the net rate of displacement of working fluid by the hydraulic pump is selected responsive thereto to regulate the torque applied to the said rotating shaft.

Подробнее
Номер записи: 10
31-05-2012 дата публикации

Apparatus for parking control of automatic transmission vehicle and method thereof

Номер: US20120136543A1
Автор: Chang Kook Chae, Ho Rim Yang, Jae Joon Seo, Jae Woong Hwang, Jaeweon Jun, Jin Hee Lee, Jin Soo Lee, Kunsoo Jung, Wan Soo Oh, Woochurl Son, Wookjin Jang
Принадлежит: Hyundai Motor Co

An apparatus for parking control of an automatic transmission vehicle may include a speed detector that provides a controller with a vehicle speed, a shift lever detector that provides the controller with a position of a shift lever, the controller that analyses the vehicle speed and the position of the shift lever, and supplies a predetermined hydraulic pressure to brake elements and clutch elements in order to create drag on a parking gear shaft in conversion into a parking mode, and an actuator that supplies the hydraulic pressure to the clutch elements and the brake elements or discharges the hydraulic pressure from the clutch elements and the brake elements according to the control of the controller.

Подробнее
Номер записи: 11
31-05-2012 дата публикации

Method and system for controlling vehicle shifting

Номер: US20120136544A1
Автор: Man Se Heo
Принадлежит: Hyundai Motor Co

A method and a system for controlling vehicle shifting is configured to change shift patterns by reflecting a driver's shifting habits. The method may include running the vehicle according to a first shift pattern, detecting control parameters, determining whether the detected control parameters satisfies a first shift pattern conversion condition, and running the vehicle according to a second shift pattern when the first shift pattern conversion condition is satisfied.

Подробнее
Номер записи: 12
21-06-2012 дата публикации

Work vehicle

Номер: US20120152642A1
Автор: Hirotaka Takahashi, Toru Shiina
Принадлежит: KOMATSU LTD

In the work vehicle, a controller is configured to control a motor displacement control part via feedback control so that the driving hydraulic pressure detected by a driving hydraulic pressure detector approaches a predetermined target driving hydraulic pressure. The controller is configured to perform low temperature motor displacement limitation control, which reduces the maximum displacement of a hydraulic motor, when the temperature of the hydraulic fluid detected by the fluid temperature detector is lower than a predetermined temperature.

Подробнее
Номер записи: 13
21-06-2012 дата публикации

Double gearchange prevention

Номер: US20120158259A1
Автор: Fredrik Swartling, Mikael Öun
Принадлежит: Individual

A method for prevention of unwanted double gear changes for a gearbox in a motor vehicle. The vehicle comprises an engine connected to drive the gearbox. The gearbox also effects a manual gear change in an automatic mode if a mode selector connected to the gearbox is activated. The manual gear change is barred if the mode selector is only activated a first time during a gear change period, which represents a period of time during which an automatic gear change is effected in the automatic mode. A system, a computer program, a computer program product and a motor vehicle, which prevent an unwanted double gear change, are disclosed.

Подробнее
Номер записи: 14
28-06-2012 дата публикации

Transmission scheduling for multi-stroke engine

Номер: US20120165155A1
Автор: David Karl Bidner, Gopichandra Surnilla
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A multi-mode internal combustion engine is described. As one example, the engine may be transitioned between a two stroke mode and a four stroke mode in coordination with a transmission shift by adjusting a number of strokes performed by the engine per combustion cycle while shifting the transmission between different gear ratios. Under select conditions, the number of strokes performed by the engine per combustion cycle may be reduced while shifting the transmission from a higher gear ratio to a lower gear ratio. Under other conditions, the number of strokes performed by the engine per combustion cycle may be increased while shifting the transmission from a lower gear ratio to a higher gear ratio.

Подробнее
Номер записи: 15
28-06-2012 дата публикации

Method for determination of gearshift points

Номер: US20120166051A1
Автор: Anders Kjell, Fredrik Swartling, Tom Nyström
Принадлежит: Individual

A method for determination of one or more downshift and upshift points for a gearbox in a motor vehicle. The vehicle includes an engine connected to the gearbox, where a downshift point represents a first engine speed at which the gearbox effects a downshift, and an upshift point represents a second engine speed at which the gearbox effects an upshift. One or more downshift and upshift points are determined relative to an engine target speed which is a desired speed for the engine. A system, a motor vehicle, a computer program and a computer program product thereof perform the method.

Подробнее
Номер записи: 16
05-07-2012 дата публикации

Relay control of a transmission direction control system

Номер: US20120167705A1
Автор: Edwin George Coombs, Richard George Smith, Simon Richard Conway
Принадлежит: Caterpillar Inc

A transmission direction control system of a vehicle comprises a transmission circuit having a transmission actuator to activate a corresponding solenoid, and an actuating switch for controlling an electrical flow through the transmission circuit; a control circuit configured to actuate the switch; and a control configured for electrical communication with the transmission actuator and the control circuit to alternately activate the transmission circuit and the control circuit.

Подробнее
Номер записи: 17
26-07-2012 дата публикации

Method and apparatus to detect the presence of hydraulic pressure in a transmission

Номер: US20120186675A1
Автор: Ali K. Naqvi, Syed Naqi
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method is provided to detect the presence of hydraulic line pressure in a hydraulic control system in an electromechanical transmission. The method includes determining an estimated hydraulic line pressure of the hydraulic control system based upon an input flow and an output flow of hydraulic fluid. The input flow and output flow are regulated with a pressure control device, which is energizable on operator demand. A pressure detection device is fluidly connected to the pressure control device to detect the presence of hydraulic pressure. An override module is applied to the estimated hydraulic line pressure to determine a corrected hydraulic line pressure. The override module sets the corrected hydraulic line pressure to predetermined values based on the operating state indicated by the pressure detection device. The override module corrects for an over-estimation of hydraulic line pressure in operating conditions such as low environmental temperatures.

Подробнее
Номер записи: 18
29-11-2012 дата публикации

Control System for a Vehicle Drivetrain

Номер: US20120302401A1
Автор: John William Edward Fuller
Принадлежит: Torotrak Development Ltd

The invention concerns an arrangement for controlling a vehicle drivetrain having an engine provided with a speed governor and a continuously variable transmission (“CVT”) incorporating a variator which is constructed and arranged to regulate its reaction torque. The control system comprises a control part ( 504 ) movable by the driver to provide a driver input, an open loop subsystem ( 511 ) for operatively coupling the control part to the governor ( 520 ) to control no-load speed of the governor in dependence on the driver input, a closed loop subsystem comprising a comparator ( 502 ) which receives a first control signal deprived from the driver input and corresponding to a target engine speed, and a second control signal corresponding to engine speed, and which adjusts variator reaction torque in dependence upon a comparison of the first and second control signals causing the transmission to load the engine suitably to achieve the target engine speed.

Подробнее
Номер записи: 19
29-11-2012 дата публикации

Hybrid vehicle

Номер: US20120303201A1
Автор: Atsushi Izumiura, Junya Tsuneishi, Masahiro Takeuchi
Принадлежит: Honda Motor Co Ltd

A hybrid vehicle is equipped with a required driving force acquiring element 22 which obtains a required driving force necessary to be output, and an electric motor driving force acquiring element 23 which acquires a maximum electric motor driving force Tm capable of being output by the force output from an electric motor MG according to each speed stage, taking into consideration a remaining capacity of an electric storage device BATT. When the required driving force Tq is equal to or smaller than the maximum electric motor driving force Tm, a highest speed stage in which the electric motor MG is capable of outputting the required driving force Tq is determined, an automatic transmission 1 is controlled so that the determined speed stage is set, and the vehicle is made to travel only by the force of the electric motor MG.

Подробнее
Номер записи: 20
13-12-2012 дата публикации

Gear shift indicator

Номер: US20120312222A1
Автор: Kazumitsu Sugano, Shinji Kato, Shuntaro Shinohara
Принадлежит: Toyota Motor Corp

Disclosed is a gear shift indicator which can reduce bothersome feelings of the driver. The EFI-ECU acquires information about the travelling state of a vehicle, and calculates a target gear shift stage for improving fuel consumption. The EFI-ECU acquires information about a current gear shift stage. The EFI-ECU determines that a gear shift request is generated when the current gear shift stage is different from the target gear shift stage. When the EFI-ECU determines that an AI control is under execution and that the target gear shift stage calculated in the Step is a restricted gear shift stage prohibited in the AI control, the EFI-ECU does not present a gear shift indication.

Подробнее
Номер записи: 21
13-12-2012 дата публикации

Torque ratio estimating apparatus for continuously variable transmission and lateral pressure control apparatus for continuously variable transmission

Номер: US20120316016A1
Автор: Kyohei Sakagami
Принадлежит: Honda Motor Co Ltd

When estimating a torque ratio (Tr), which is the ratio of an actually transmitted torque relative to the maximum transmittable torque of a continuously variable transmission, based on the transmission characteristics for transmitting a given variable component of an input shaft element to an output shaft element via a frictional element, since the torque ratio (Tr) is estimated from a slip identifier (IDslip), which is an indicator for difference in amplitude of a variable component between the two elements, or a phase lag (Δφ), which is an indicator for difference in phase of the variable component between the two elements, it is possible to estimate the torque ratio (Tr), which is very closely related to the power transmission efficiency of the continuously variable transmission, with good precision, thus improving the power transmission efficiency. Moreover, since the torque ratio (Tr) is estimated from the slip identifier (IDslip) or the phase lag (Δφ), it is possible to minimize the number of sensors necessary for estimation, this reducing the cost.

Подробнее
Номер записи: 22
07-02-2013 дата публикации

Use of on-vehicle accelerometer to estimate vehicle grade and mass while vehicle is in motion

Номер: US20130035829A1
Автор: Richard L. Tiberg
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system includes a grade estimation module that receives an accelerometer value and generates a grade estimate based on the accelerometer value, wherein the accelerometer value corresponds to acceleration of a vehicle and the grade estimate corresponds to a grade of the vehicle. A mass estimation module receives the accelerometer value and generates a mass estimate based on the accelerometer value, wherein the mass estimate corresponds to a mass of the vehicle. A shift control module at least one of selects and adjusts one of a plurality of shift schedules based on at least one of the grade estimate and the mass estimate and controls a transmission of the vehicle based on the one of the plurality of shift schedules.

Подробнее
Номер записи: 23
21-02-2013 дата публикации

Driving resistance-dependent shifting delay

Номер: US20130046450A1
Автор: Gernot Becker, Martin GENTILE
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A control system for shifting an automatic transmission for a motor vehicle is provided. The control system is connected to a drive engine and a drive train. The control system includes a speed sensor configured for sensing a vehicle speed, an angular sensor configured for sensing an angle of an accelerator pedal of the motor vehicle, an acceleration sensor configured to sense an acceleration of the accelerator pedal, and a control electronic device configured for selecting a predetermined shifting curve for shifting the automatic transmission. The control electronic device also is configured to select from different shifting modes by measurement data of the speed sensor, angular sensor, and acceleration sensor.

Подробнее
Номер записи: 24
28-02-2013 дата публикации

Device for determining an operating state of at least one bidirectionally actuable hydraulic adjusting device of a shifting element of a transmission device

Номер: US20130047739A1
Автор: Christian Popp, Thilo Schmidt
Принадлежит: ZF FRIEDRICHSHAFEN AG

A device for determining an operating state of a bi-directionally actuated hydraulic adjusting device of a transmission shifting element, which pressurizes active surfaces of a piston. The piston is biased to opposite end positions depending on which of a first active surface or a second active surface is pressurized with high pressure. The areas of the adjusting device, which can be pressurized with the pressure at the active surfaces of the piston, are connected with one another in positions of the piston element, between the end positions, via a throttle device. One of each area can be coupled for adjustment of the piston with the high-pressure area, and the other area with the low pressure area. An additional throttle device is provided upstream of the low pressure area and a pressure measuring device is provided upstream of the additional throttle device.

Подробнее
Номер записи: 25
21-03-2013 дата публикации

Vehicle shift control device

Номер: US20130072350A1
Автор: Keisuke Sekiya, Koki Ueno, Mitsuaki Ishimaru
Принадлежит: Toyota Motor Corp

It is provided a vehicle shift control device electrically switching a shift position between a parking position and a non-parking position, the vehicle being capable of switching a vehicle state among a first state, a second state and a third state, when an operation for switching the vehicle state is performed in the first state, if a vehicle speed is a predetermined speed or less, switching is executed to the parking position and, after completion of the switching, the vehicle state is switched to the third state, whereas when plural-times of the operations are performed successively during the vehicle running, the vehicle state is compulsorily switched to the second state, and when at least one operation of the plural-times of the operations is performed if the vehicle speed is the predetermined speed or less, switching to the parking position is executed prior to switching to the second state.

Подробнее
Номер записи: 26
28-03-2013 дата публикации

System and method for controlling loads on a dual mass flywheel attached to an engine based on engine speed

Номер: US20130080001A1
Автор: James M. Partyka, William L. Cousins
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system according to the principles of the present disclosure includes an engine speed module and a downshift indicator module. The engine speed module determines an engine speed when a clutch is engaged with a dual mass flywheel. The downshift indicator module generates a downshift indicator signal when the engine speed is less than a first speed, the downshift indicator signal indicating when to downshift a manual transmission.

Подробнее
Номер записи: 27
04-04-2013 дата публикации

Control system for shifting an automatic transmission

Номер: US20130085648A1
Автор: Gernot Becker, Martin GENTILE
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A control system is provided for shifting an automatic transmission of a motor vehicle, which includes, but is not limited to a speed controller, and an electronic control device. Through the electronic control device the parameters vehicle speed, position of the speed controller and acceleration of the speed controller can be captured. Through the electronic control device and through comparison of the captured values of the parameters with predetermined reference values a shifting time is determined for shifting the automatic transmission.

Подробнее
Номер записи: 28
18-04-2013 дата публикации

Primary clutch electronic cvt

Номер: US20130096785A1
Автор: Beat Kohler, Peter J. Erasmus, Philipp Meyer, Urs Wenger
Принадлежит: Polaris Industries Inc

A continuously variable transmission (CVT) is provided for use on a recreational or utility vehicle. The CVT is electronically controlled by at least one control unit of the vehicle. The CVT includes a primary clutch having a first sheave and a second sheave moveable relative to the first sheave. An actuator controls movement of the second sheave.

Подробнее
Номер записи: 29
09-05-2013 дата публикации

Control system with remote drivers

Номер: US20130113407A1
Автор: Bret M. Olson, Vijay A. Neelakantan
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A control system for a transmission includes a transmission control module having a processor configured to determine an output torque command and having a pulse width modulation (PWM) switch configured to generate a PWM signal at least partially representative of the output torque command. A network is in communication with the transmission control module and is configured to receive and transmit the PWM signal. A driver is integrated with the electromagnetic actuator and is in communication with the network. The driver is configured to receive the PWM signal and convert the PWM signal into a drive current that enables the electromagnetic actuator to fulfill the output torque command.

Подробнее
Номер записи: 30
16-05-2013 дата публикации

Systems and Methods for Operating a Driveline System

Номер: US20130123065A1
Автор: Michael P. Bujold
Принадлежит: Orbital Traction Ltd

Systems and methods for operating a driveline system are disclosed and include a step-variable transmission. A continuously variable transmission (CVT) is coupled between an input source and the step-variable transmission. The CVT receives a first torque from the input source and outputs a second torque. The CVT has a plurality of planetary members in rolling contact with an inner race and an outer race. A radial distance between the planetary members and a drive-transmitting member corresponds to a transmission ratio of the CVT.

Подробнее
Номер записи: 31
20-06-2013 дата публикации

Control device of automatic transmission

Номер: US20130152718A1
Автор: Katsuhiro Matsuo, Keizo Ishida
Принадлежит: JATCO Ltd, Nissan Motor Co Ltd

An automatic transmission has an automatic shift mode and a manual shift mode. When an opposite manual operation is performed, during an automatic shift based on a shift map in the automatic shift mode, in an opposite direction opposite to the automatic shift or when the opposite manual operation is performed, during a forced shift performed regardless of the manual operation in the manual shift mode, in the opposite direction opposite to the forced shift, a control apparatus forbids a shift based on a first manual operation and permits a shift based on a second or subsequent manual operation in the opposite direction opposite to the automatic shift or the forced shift.

Подробнее
Номер записи: 32
20-06-2013 дата публикации

Clutch torque trajectory correction to provide torque hole filling during a ratio upshift

Номер: US20130153353A1
Автор: Christopher John Teslak, Diana Yanakiev, Gregory Michael Pietron, Hongtei Eric Tseng, Michael Glenn Fodor, Seung-Hoon Lee, Yuji Fujii
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A multiple ratio transmission having an input shaft, an output shaft and oncoming clutch and off-going clutch for effecting ratio upshifts is provided. The transmission also includes a transmission controller configured for controlling shifts. During the torque phase of a ratio upshift, the controller increases input torque. Next, the controller estimates an oncoming clutch target torque. The controller controls a torque input to ensure the off-going clutch remains locked. The controller measures an actual transmission value for a torque transmitting element of the transmission and corrects the oncoming clutch target torque using the actual transmission value whereby an increasing torque for the oncoming friction element is achieved with minimal torque transients along the output shaft during the upshift.

Подробнее
Номер записи: 33
20-06-2013 дата публикации

Line pressure control apparatus and method for vehicle

Номер: US20130158761A1
Автор: Hiroki Kawakami, Shinya Mochiyama
Принадлежит: JATCO Ltd

In line pressure control apparatus and method for a vehicle, a line pressure controller outputs a line pressure command to reduce an indicated pressure toward a required indicated pressure by which a required pressure can be secured and which is lower than an initial stage indicated pressure from the initial stage indicated pressure preset to be higher than the required pressure, while a state of each of an electrically driven oil pump (sub-O/P) and a mechanical oil pump (M-O/P) enters a first region (a) and outputs the line pressure command to hold the indicated pressure at a time point at which the first region is ended, while the state enters a second region (b), when a hydraulic pressure source is transitioned from the electrically driven oil pump to the mechanical oil pump.

Подробнее
Номер записи: 34
27-06-2013 дата публикации

Shift control apparatus for continuously variable transmission

Номер: US20130165295A1
Автор: Hiromu Ogino, Hisao Nakanishi, Keisuke Ichikawa, Mitsuki Ishizuka, Nobuhide Kato, Nobuhiko Morifuji, Takahiro Nakata, Tomoaki Kabe, Yuki Ono, Yukinobu Sakakibara
Принадлежит: JATCO Ltd

A shift control apparatus for a continuously variable transmission includes: a target transmission gear ratio setting section configured to set a target transmission gear ratio with reference to a map based on an accelerator opening degree and a vehicle speed; a shift control section configured to control a shift of the continuously variable transmission based on the target transmission gear ratio; and a downshift restricting section configured to judge whether or not a restriction of the downshift is needed based on at least one of a variation amount of the accelerator opening degree and an accelerator depression speed, and to perform the restriction of the downshift when the downshift restricting section judges that the restriction of the downshift is needed, irrespective of a variation of the accelerator opening degree inputted to the target transmission gear ratio setting section.

Подробнее
Номер записи: 35
11-07-2013 дата публикации

Fuel saving system that facilitates vehicle re-starts with the engine off

Номер: US20130178328A1
Автор: Benoit Lacroix, Dany Fouquet, David Arsenault
Принадлежит: Developpement Effenco Inc

A fuel saving system for a vehicle powered by an internal combustion engine and having a hydraulically activated automatic transmission. The system includes a hydraulic pump able to supply pressurized transmission fluid to the automatic transmission, an energy storage device, and at least one motor powered by the energy storage device including a motor that is mechanically connected to the hydraulic pump and a motor that is coupled to the engine. The system also includes a controller that is responsive to one or more operating conditions to turn off the engine when the vehicle is stopped and to use the motor that is mechanically connected to the hydraulic pump so as to activate the pump to supply sufficient power to the transmission to maintain engagement of the transmission in a driving gear. The controller is also responsive to one or more operating conditions to activate the motor that is coupled to the engine so as to restart the engine with the transmission engaged in a driving gear.

Подробнее
Номер записи: 36
18-07-2013 дата публикации

Dual clutch transmission

Номер: US20130184946A1
Автор: Jesse B. Bradley, John E. Marano, Joseph B. Burtch
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A transmission for a motor vehicle with an engine includes a transmission housing and a dual clutch assembly with a clutch housing connectable to an engine output member. The clutch housing is rotationally supported within the transmission housing. The selective engagement of the dual clutch assembly interconnects the dual clutch housing with at least one of a first input member and a second input member. The transmission also includes a plurality of gear sets associated with various forward and reverse gear ratios, a controller implemented with an algorithm that provides a lock-up profile for the dual clutch assembly, and a plurality of synchronizer assemblies that couple at least one of the gear sets with at least one of a first countershaft and a second countershaft. The selective engagement of at least one of the synchronizer assemblies establishes at least one of the forward speed ratios.

Подробнее
Номер записи: 37
18-07-2013 дата публикации

Method Of Controlling Gear Ratio Rate Of Change In Continuously Variable Transmission

Номер: US20130184948A1
Автор: Bradley John Will, Randall Todd Anderson
Принадлежит: Caterpillar Inc

A method for controlling a gear ratio rate of change in a machine having a continuously variable transmission includes moving an operator input device to a changed position, receiving electronic data indicative of the changed position, and determining a non-limited desired gear ratio based on the changed position. A maximum gear ratio rate of change corresponding to the non-limited desired gear ratio and an actual gear ratio of the continuously variable transmission is selected from an electronically stored gear ratio rate map. A current desired gear ratio is determined based on a previous desired gear ratio and the maximum gear ratio rate of change. A commanded gear ratio of the continuously variable transmission is changed to the current desired gear ratio using electronic signals.

Подробнее
Номер записи: 38
22-08-2013 дата публикации

Engine-overrun-preventing control device for work vehicle

Номер: US20130218428A1
Автор: Hideyuki Hiraiwa, Jun Hashimoto, Shinji Kaneko, Yoshitaka Onodera
Принадлежит: KOMATSU LTD

In an engine-overrun-preventing control device, if an engine speed exceeds a maximum speed, a minimum value of an inching rate is set such that higher the actual engine speed results in a higher minimum value of an inching rate. The hydraulic pump displacement is adjusted to obtain a higher inching rate between the minimum value of the inching rate and an inching rate set based on a brake stroke. If the engine speed exceeds a commanded speed and a pressure time-rate-of-change at the pump intake exceeds a prescribed value, the minimum value of the inching rate is set such that the higher the pressure time-rate-of-change, the higher the minimum value of the inching rate. The pump displacement is adjusted to obtain a higher inching rate between the minimum value of the inching rate set based on the pressure time-rate-of-change and the inching rate set based on the brake stroke.

Подробнее
Номер записи: 39
29-08-2013 дата публикации

Variator fault detection system

Номер: US20130225359A1
Автор: Charles F. Long, Darren J. Weber
Принадлежит: Individual

A variator fault detection system for a continuously variable transmission is incorporated into a hydraulic control circuit that controls fluid pressure applied to a variator of the continuously variable transmission. The hydraulic control circuit for the variator includes a number of electrically-controlled shift valves and pressure control valves. Sensing devices are multiplexed to these valves to detect a number of different possible fault states relating to the variator shift valves and the variator pressure control valves.

Подробнее
Номер записи: 40
03-10-2013 дата публикации

Work vehicle and control method for work vehicle

Номер: US20130256043A1
Автор: Atsushi Shirao, Isao Ueno, Masanori Ikari
Принадлежит: KOMATSU LTD

A storage section stores inching characteristic information. The inching characteristic information defines a relationship between an inching operation quantity and an inching characteristic value. The inching characteristic value is a value dependent on pilot pressure that is reduced through inching control. A computing section references the inching characteristic information to thereby compute, from the inching operation quantity detected by the inching operation quantity detector, a command value to the pilot pressure control valve. In the inching characteristic information, a rate of lowering the inching characteristic value when the inching operation quantity is within a first range is greater than a rate of lowering the inching characteristic value when the inching operation quantity is within a second range greater than the first range.

Подробнее
Номер записи: 41
03-10-2013 дата публикации

Working vehicle and method for controlling a working vehicle

Номер: US20130259710A1
Автор: Atsushi Shirao, Hidehiro Hashimoto
Принадлежит: KOMATSU LTD

An upper limit speed control part controls the lower limit of motor displacement in conformance with the target upper limit speed via a motor displacement control part when the target upper limit speed is within the normal speed range. The upper limit speed control part controls the upper limit of pilot pressure via a pilot pressure control part in conformance with the target upper limit speed when the target upper limit speed is within the low speed range. Further, when the target upper limit speed is within the low speed range, the upper limit speed control part controls a pilot pressure valve such that the upper limit of pilot pressure increases as drive circuit pressure increases.

Подробнее
Номер записи: 42
10-10-2013 дата публикации

Method for the operation of a transmission device in a vehicle drive train when a request is made to change gears

Номер: US20130268168A1
Автор: Georg Mihatsch, Jörg ARNOLD, Valentine Herbeth
Принадлежит: ZF FRIEDRICHSHAFEN AG

A method of operating a transmission of a vehicle drive-train when a gearshift from a current gear toward a target gear has been requested. The transmission having frictional shifting elements and at least one interlocking shifting element. If an actuating electrical current, equivalent to a closed operating condition of the frictional shifting element to be engaged, and an actuating electrical current, equivalent to an open operating condition of the interlocking shifting element to be disengaged, are determined while, at the same time, a closed operating condition of the interlocking shifting element to be disengaged is detected by a sensor, a fault is recognized. If the fault is recognized during a predefined test period, one or more selected shifting elements are disengaged and a force flow in the transmission is interrupted. Alternatively, by disengaging the frictional shifting element to be engaged, the current gear is engaged in the transmission.

Подробнее
Номер записи: 43
24-10-2013 дата публикации

Adaptable thermal management of a vehicle dual-clutch transmission

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

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

Подробнее
Номер записи: 44
24-10-2013 дата публикации

Adaptable thermal management of a vehicle dual-clutch transmission

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

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

Подробнее
Номер записи: 45
07-11-2013 дата публикации

Lash zone detection in a hybrid vehicle

Номер: US20130297110A1
Автор: Bernard D. Nefcy, Daniel Scott Colvin, Marvin Paul Kraska, Walter Joseph Ortmann
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method for controlling an electric vehicle having a traction motor connected to a driveline includes controlling traction motor output torque through a region surrounding the vehicle wheel torque reversal to mitigate torque disturbances in a driveline, wherein the region is determined using a relationship between driveline input torque and driveline output torque and is bounded by a zero input torque and a zero output torque. A hybrid electric vehicle has a traction motor, a driveline connected to a vehicle wheel, and a controller configured to control traction motor output torque through a region surrounding a vehicle wheel torque reversal to mitigate torque disturbances in the driveline. A control system for a hybrid vehicle includes a traction motor and a controller. The controller is configured to control traction motor output torque through a region surrounding a vehicle wheel torque reversal to mitigate torque disturbances in the driveline.

Подробнее
Номер записи: 46
07-11-2013 дата публикации

Methods and systems for reducing gear lash noise

Номер: US20130297123A1
Автор: Alex O'Connor Gibson, Dennis Craig Reed, Gregory Michael Pietron, James William Loch McCallum, Jeffrey Allen Doering
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Systems and methods for improving operation of a hybrid vehicle are presented. In one example, driveline gear lash gear tooth to gear tooth impact may be reduce via adjusting operation of an electric machine.

Подробнее
Номер записи: 47
14-11-2013 дата публикации

Device, System, and Method for Controlling Transmission Torque to Provide Hill Ascent and/or Descent Assistance Using Road Grade

Номер: US20130304340A1
Автор: Jared S. Shattuck, Jeffrey E. Shultz, Peter G. YORK
Принадлежит: Jared S. Shattuck, Jeffrey E. Shultz, Peter G. YORK

A device, system, and method for controlling transmission torque to provide hill ascent and/or descent assistance to a vehicle includes applying a clutch hold pressure to one or more clutches of a transmission to lock an output shaft of the transmission to resist roll-back of the vehicle. The clutch hold pressure is determined as a function of the tractive effort of the vehicle and is applied based on one or more of a transmission output speed signal, an engine throttle signal, and a vehicle brake signal.

Подробнее
Номер записи: 48
21-11-2013 дата публикации

Method of operating a park lock mechanism

Номер: US20130305863A1
Автор: Behrouz Ashrafi, Feisel Weslati
Принадлежит: CHRYSLER GROUP LLC

A method of operating a park lock mechanism in a vehicle includes determining a force acting on a vehicle park lock mechanism when the vehicle is in park, and providing an offsetting force to counteract the force on the park lock mechanism before the vehicle is shifted out of park. In doing so, harshness and noise that may be associated with shifting a vehicle out of park, especially when the vehicle is parked on an incline, can be reduced or eliminated.

Подробнее
Номер записи: 49
12-12-2013 дата публикации

Transmission control apparatus and adjustment method for output characteristic thereof

Номер: US20130327423A1
Автор: Fumiaki Arimai, Hiroyoshi Nishizaki, Shozo Kanzaki
Принадлежит: Mitsubishi Electric Corp

In a linear solenoid 107 n , an electromagnetic coil 71 n , a pressure sensor 72 n , and label resistors 73 n and 74 n for correcting an inherent variation in a pressure detection characteristic are integrated; the standard characteristic of the pressure sensor 72 n is stored in a control module 120 M; when driving is started, the resistance values of the label resistors 73 n and 74 n are read, the pressure detection characteristic of the utilized pressure sensor 72 n is corrected, and an excitation current for the electromagnetic coil 71 n is controlled in such a way that a target adjusted hydraulic pressure is obtained. Even when due to a change in the oil temperature, the valve opening characteristic of the linear solenoid 107 n changes, the adjusted hydraulic pressure is controlled to be constant.

Подробнее
Номер записи: 50
30-01-2014 дата публикации

Pto transmission system in a work vehicle

Номер: US20140026691A1
Автор: Christian Huber, John Posselius, Riccardo Morselli
Принадлежит: CNH Amercia LLC

A PTO transmission system in a vehicle for transmitting power to a PTO shaft driving an implement comprises a planetary drive unit ( 3 ) having first and second input means ( 2, 5 ) and output means ( 4 ) coupled to the PTO shaft ( 8 ). The first and second input means are coupled to an output shaft of the vehicle engine ( 1 ) and to an output shaft ( 5 ) of drive motor means ( 7 ), respectively. Control means ( 11 ) control the transfer of power from a power source ( 4 ) to said drive motor means ( 7 ). The power source is a variable power generating means ( 6 ) driven by said PTO shaft. The drive motor means are configured and adapted to decrease or increase the rotational speed of the output means of the planetary drive unit on an increase or decrease of the power transferred to it, respectively.

Подробнее
Номер записи: 51
03-04-2014 дата публикации

Twin clutch controlling apparatus

Номер: US20140095033A1
Автор: Hiroyuki Kojima, Kazuhiko Nakamura, Kazuyuki Fukaya, Satoshi Honma, Yasuyuki Mori, Yoshiaki Nedachi, Yoshiaki Tsukada
Принадлежит: Honda Motor Co Ltd

A twin clutch controlling apparatus includes an ATM control unit for controlling a shift actuator and a clutch actuator and a shift pedal P for carrying out shifting request to the ATM control unit. When a shifting request by the shift pedal P is issued, the ATM control unit drives the shift actuator to change over the shift stage to a next stage gear irrespective of an operational amount of a clutch lever L and then causes the manual operation clutch capacity arithmetic operation value (tqcltmt) to correspond to a clutch capacity corresponding to the next stage gear using an operational amount of the clutch lever L that exceeds a predetermined value as a trigger. If a predetermined period of time elapses while the clutch lever L is not operated, then the shifting request is an erroneous operation and the shift stage is returned to an original gear.

Подробнее
Номер записи: 52
01-01-2015 дата публикации

Shifting-operation detection unit

Номер: US20150000447A1
Автор: Masashi Ebata, Nagatomo Harata
Принадлежит: Keihin Corp

In a shifting-operation detection unit, a first detection unit has a first resistor connected in series to a first switch and a second resistor connected in parallel to the first switch and the first resistor, a second detection unit has a third resistor connected in series to a second switch and a fourth resistor connected in parallel to the second switch and the third resistor, and the first detection unit and the second detection unit are connected in series to be connected to correspond to a power supply terminal and a ground terminal of an external device and apply a divided voltage of a voltage of the power supply terminal to the external device via an electric wire, the divided voltage having voltage values corresponding to a shift-up operation and a shift-down operation, respectively.

Подробнее
Номер записи: 53
02-01-2020 дата публикации

Traveling vehicle

Номер: US20200001710A1
Автор: Kensuke Taira, Satoshi Yoshikawa, Takuya Inamori, Toyohiko Kumatori
Принадлежит: Kubota Corp

A traveling vehicle includes: a body; a steering wheel that is attached to the body and rotates around a rotating shaft; and a forward-reverse switching lever that switches between a forward position, a neutral position, and a reverse position. The forward-reverse switching lever includes: a lever main body that is pulled up at the neutral position and swings forward or rearward in a pulled-up state; and a grip mounted to an upper portion of the lever main body, the grip includes: a base portion including an upper face; and a protruding portion protruding downward from the base portion, and the protruding portion includes: a distal face that is opposite a rotating-shaft side of the protruding portion; a first side face; and a second side face.

Подробнее
Номер записи: 54
04-01-2018 дата публикации

Valve Assembly and System Including Same for Controlling Fluid Flow to and from a Clutch

Номер: US20180001883A1
Автор: Flandrinck Christian
Принадлежит:

A system for controlling fluid flow to and from a clutch includes a motor, a pump, and a valve assembly. The valve assembly includes a housing defining an interior. The housing defines a first orifice operably coupled to the pump and a second orifice operably coupled to the clutch. The valve assembly also includes a piston operably coupled to the motor and disposed within the interior of said housing. The piston is movable between a first position for allowing the fluid flow between the first orifice and the second orifice, a second position for obstructing the fluid flow between the first orifice and the second orifice, and a third position for limiting the fluid flow between the first orifice and the second orifice. The valve assembly additionally includes a biasing member coupled to the piston. The biasing member biases the piston toward the first position. 1. A valve assembly operably coupled to a motor , a pump , and at least one clutch , said valve assembly comprising:a housing defining an interior, with said housing defining a first orifice operably coupled to the pump and a second orifice operably coupled to the at least one clutch;a piston operably coupled to the motor and disposed within said interior of said housing, with said piston movable between a first position for allowing a fluid flow between said first orifice and said second orifice, a second position for obstructing said fluid flow between said first orifice and said second orifice, and a third position for limiting said fluid flow between the first orifice and the second orifice; anda biasing member coupled to said piston, with said biasing member biasing said piston toward said first position.2. The valve assembly of claim 1 , wherein said housing includes at least a side wall and an end wall and further defines a third orifice fluidly coupled to at least one of said first orifice and said second orifice.3. The valve assembly of claim 2 , wherein said third orifice is disposed adjacent to said ...

Подробнее
Номер записи: 55
07-01-2016 дата публикации

AUTOMATIC TRANSMISSION POWER FLOW DETECTION

Номер: US20160003350A1
Автор: Gunderson Joel H., HATHAWAY RICH, RIEDLE BRADLEY
Принадлежит:

A transmission is provided having a control module, an input member, an output member, four planetary gear sets, a plurality of coupling members, a plurality of torque transmitting devices, and at least one speed sensor assembly. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes. The control module includes a control logic sequence for assuring engagement of torque transmitting mechanisms for achieving specific gear ratios between the input and output members. 1. A transmission for a vehicle , the transmission including:an input member;an output member;a plurality of planetary gear sets each having a first, second, and third members, and wherein the input member is connected to one of the members of one of the planetary gear sets and the output member is connected to another one of the members of one of the planetary gear sets;a plurality of interconnecting members each connecting for common rotation one of the first, second, or third members of one of the planetary gear sets with another of the first, second, or third members of another planetary gear set;a plurality of torque transmitting mechanisms each selectively connecting one of the first, second, or third members of one of the planetary gear sets with another of the first, second, or third members of a planetary gear set or a stationary member;a plurality of speed sensor assemblies each having a speed sensor and a speed sensor ring, and wherein each of the speed sensor rings are disposed on one of the first, second, or third members of one of the planetary gear sets or one of the interconnecting members, anda transmission control module having a control logic sequence, wherein the control module operates to control engagement of each of the plurality of torque transmitting mechanisms, and wherein each of the speed sensors is capable of detecting a rotational speed of the corresponding speed sensor ring and sending a speed ...

Подробнее
Номер записи: 56
04-01-2018 дата публикации

METHOD OF ADJUSTING A GEAR LEVER NEUTRAL POSITION

Номер: US20180003297A1
Автор: Ma Thomas
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

A vehicle includes a gear shifter operable to shift a manual transmission. An actuator is connected to the shifter and actuatable to bias the shifter to at least a first or second neutral position. The vehicle further includes a controller configured to bias the shifter, via the actuator, to one of the neutral positions based on a speed of the vehicle. 1. A method of adjusting a neutral position of a gear lever of a manual gear shift mechanism having a number of forward gear selected positions arranged in pairs on parallel planes linked via a common transverse neutral plane , the gear shift mechanism further having neutral positions in the transverse neutral plane , and an actuator operable to adjust the gear shift mechanism between the neutral positions , the method comprising:adjusting the gear shift mechanism between the neutral positions, via the actuator, based upon a current vehicle speed.2. A method of further comprising:adjusting the gear shift mechanism, via the actuator, to a first position of the neutral positions in response to the current vehicle speed being less than a threshold; andadjusting the gear shift mechanism, via the actuator, to a second position of the neutral positions in response to the current vehicle speed being greater than the threshold.3. The method of further comprising adjusting the gear shift mechanism between the neutral positions claim 1 , via the actuator claim 1 , based upon the forward gear selected position and a position of a brake pedal.4. The method of further comprising adjusting the gear shift mechanism between the neutral positions claim 1 , via the actuator claim 1 , based upon the forward gear selected position and a position of an accelerator pedal.5. The method of further comprising inhibiting adjusting the gear shift mechanism from the second position to the first position in response to an accelerator pedal being depressed.6. The method of further comprising adjusting the gear shift mechanism claim 2 , via the ...

Подробнее
Номер записи: 57
02-01-2020 дата публикации

AUTOMOTIVE TRANSMISSION

Номер: US20200003297A1
Автор: CHAE Min Ho, Eo Soon Ki, Kim Chon Ok, Kwon Sun Sung, Shin Yong Uk
Принадлежит:

An automotive transmission may include a first planetary gear set having first to third rotation elements, an input shaft engaged with the first rotation element of the first planetary gear set, an output shaft engaged with the second rotation element of the first planetary gear set, and a sleeve section sliding linearly along an axial direction of the first planetary gear set to selectively switch to a first state in which the third rotation element is secured to a transmission housing, a second state in which the third rotation element is engaged with a further rotation element, or a neutral state in which the third rotation element is not secured to or engaged with the transmission housing or the further rotation element. 1. An automotive transmission apparatus comprising:a first planetary gear set having first to third rotation elements;an input shaft connected to the first rotation element of the first planetary gear set;an output shaft fixed to the second rotation element of the first planetary gear set, wherein the first rotation element of the first planetary gear set is engaged with the second rotation element of the first planetary gear set; anda sleeve section slidably mounted at the first planetary gear set to selectively switch the automotive transmission apparatus to a first state in which the third rotation element engaged to the second rotation element is secured to a transmission housing, a second state in which the third rotation element is engaged with one rotation element among the first and second rotation elements, or a neutral state in which the third rotation element is not secured to or engaged with the transmission housing or the one rotation element among the first and second rotation elements.2. The automotive transmission apparatus of claim 1 , wherein a brake device is mounted between the transmission housing and the sleeve section to selectively restrict a rotation of the sleeve section with friction force by selectively connecting the ...

Подробнее
Номер записи: 58
02-01-2020 дата публикации

METHOD FOR TRANSMITTING SHIFT SIGNAL OF ELECTRONIC SHIFT SYSTEM

Номер: US20200003299A1
Автор: KIM Bum Jun, Kim Yong Ik
Принадлежит:

A method for transmitting a shift signal of an electronic shift system, may include transmitting the shift signal generated at the time of operating a shift operation device, wherein the shift operation device is configured so that one shift stage and one shift signal are matched one to one and transmits shift signals which are each individually separated according to the shift stage. 1. A method for transmitting shift signals of an electronic shift system , the method comprising:transmitting, by a shift operation device, a shift signal generated at a time of operating the shift operation device, to a transmission control unit (TCU), wherein the shift operation device is configured so that one shift stage and one shift signal among the shift signals are matched one to one and transmits the shift signals which are each individually separated according to shifting stages; andperforming, by the TCU, a shifting of a transmission, according to the transmitted shift signal.2. The method of claim 1 , wherein claim 1 , when the shift signals which are each individually separated according to the shifting stages are transmitted to the TCU claim 1 , a signal of a selected one shift stage is transmitted to the TCU claim 1 , and signals of remaining shifting stages which are not selected are not transmitted to the TCU.3. The method of claim 1 , wherein claim 1 , when a shift signal among the shift signals which are individually separated according to the shifting stages is transmitted within a predetermined time period claim 1 , the TCU accepts the transmitted shift signal and performs a control of the transmission according to the one transmitted shift signal.4. The method of claim 1 , wherein claim 1 , when two or more shift signals among the shift signals which are individually separated according to the shifting stages are simultaneously transmitted to the TCU within a predetermined time period claim 1 , the TCU accepts a shift signal transmitted last to the TCU and ...

Подробнее
Номер записи: 59
02-01-2020 дата публикации

VEHICULAR TRANSMISSION

Номер: US20200003300A1
Автор: YANG Jihoon
Принадлежит:

A vehicular transmission includes a movable unit coupled to a lever and rotated to select one of a plurality of shift stages and including a first internal gear centered on a first axis, an eccentric gear unit centered on a second axis eccentric from the first axis and including a first external gear and a second external gear eccentrically engaged with the first internal gear, a rotation unit centered on the first axis and including a second internal gear eccentrically engaged with the second external gear, an insertion unit including an eccentric shaft inserted into a center of the eccentric gear unit and a central shaft inserted into a first aperture formed at a center of the rotation unit, and a locking unit configured to fix the rotation unit based on a source of a driving force for rotating the movable unit. 1. A vehicular transmission comprising:a movable unit coupled to a lever and rotated to select one of a plurality of shift stages, the movable unit comprising a first internal gear centered on a first axis;an eccentric gear unit centered on a second axis eccentric from the first axis, the eccentric gear unit comprising a first external gear eccentrically engaged with the first internal gear and a second external gear integrally formed with the first external gear;a rotation unit centered on the first axis, the rotating unit comprising a second internal gear eccentrically engaged with the second external gear;an insertion unit comprising an eccentric shaft and a central shaft that are integrally formed, wherein the eccentric shaft is inserted into a center of the eccentric gear unit, and the central shaft is inserted into a first aperture formed at a center of the rotation unit; anda locking unit configured to fix the rotation unit depending on a source of a driving force for rotating the movable unit, wherein the locking unit comprises a moving rod configured to move in the direction of the first axis to fix the rotation unit, and an actuator configured to ...

Подробнее
Номер записи: 60
02-01-2020 дата публикации

Hydrostatic Travel Drive and Method for Controlling the Hydrostatic Travel Drive

Номер: US20200003301A1
Автор: Matthias Mueller, Michael Frasch, Steffen Mutschler, Ulrich Lenzgeiger
Принадлежит: ROBERT BOSCH GMBH

A hydrostatic travel drive includes a hydraulic pump for the purpose of supplying pressure medium to a hydraulic motor of the travel drive that can be coupled to an output, which pump can be coupled to a drive machine. The hydraulic pump has an actuating cylinder with at least one cylinder chamber and a swept volume which can be adjusted via the actuating cylinder, and at least one electrically activatable pressure valve via which the cylinder chamber can be charged with an adjustingly active actuating pressure. The travel drive further includes device via which a pressure of the hydraulic pump can be limited by means of influencing the actuating pressure.

Подробнее
Номер записи: 61
03-01-2019 дата публикации

SWITCH MODULE

Номер: US20190003574A1
Автор: Kayser Hermann
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

The present disclosure relates to a switch module for a gearbox, in particular a motor vehicle gearbox, with a housing, a switching shaft and a control lever for moving the switching shaft relative to the housing. The housing has an interface for temporarily fastening an assembly device. The control lever has an interface for interacting with the assembly device fastened to the housing interface for limiting its actuating path. 112-. (canceled)13. A switch module for a gearbox comprising:a housing having a housing interface for temporarily fastening an assembly device;a switching shaft positionable in a first direction with respect to the housing; anda control lever configured to position the switching shaft in the first direction relative to the housing, the control lever having a control lever interface configured to selectively interact with the assembly device for limiting an actuating path of the control lever.14. The switch module according to claim 13 , wherein the switching shaft is positionable in a second direction with respect to the housing claim 13 , the switching shaft comprising a switching shaft interface configured to selectively interact with the assembly device for limiting a movement of the switching shaft in the second direction.15. The switch module according to claim 14 , wherein the switching shaft interface is configured to positively limit the movement of the switching shaft in the second direction.16. The switch module according to claim 14 , wherein the switching shaft interface is configured to frictionally limit the movement of the switching shaft in the second direction.17. The switch module according to claim 13 , wherein the control lever interface is configured to positively limit the actuating path of the control lever.18. The switch module according to claim 13 , wherein the control lever interface is configured to frictionally limit the actuating path of the control lever.19. The switch module according to claim 13 , wherein the ...

Подробнее
Номер записи: 62
03-01-2019 дата публикации

Control system and method thereof for multispeed transmission

Номер: US20190003585A1
Автор: Bryan Hagelskamp, Charles F. Long, Eric Tryon
Принадлежит: Allison Transmission Inc

An electro-hydraulic control system for a multispeed transmission having a plurality of torque-transmitting mechanisms includes a controller for operably controlling the transmission, a fluid source for supplying hydraulic fluid, and a plurality of torque-transmitting mechanisms being operably selected between an applied and an unapplied state to achieve a plurality of ranges including at least one reverse, a neutral, and a plurality of forward ranges. The system includes a plurality of trim systems having pressure control solenoids and trim valves. The system may also include one or more shift valves disposed in fluid communication with the fluid source and being capable of moving between stroked and de-stroked positions. In any given range, only two of the plurality of torque-transmitting mechanisms may be applied. Moreover, three of the plurality of pressure control solenoids are normally high solenoids, and the remaining solenoids are normally low solenoids.

Подробнее
Номер записи: 63
01-01-2015 дата публикации

Device for controlling automatic transmission

Номер: US20150006044A1
Автор: Go Endo
Принадлежит: Nissan Motor Co Ltd

A device for controlling an automatic transmission including a first frictional engagement element that is engaged at a first gear shift stage and is released at a second gear shift stage, the device including a piston stroke return determination means for determining a released state of a piston that is actuated to press friction discs of the first frictional engagement element, and a gear shift start determination means for restricting execution of a gear shift from the second gear shift stage to the first gear shift stage until it is determined that the piston is in a predetermined released state after a gear shift from the first gear shift stage to the second gear shift stage is finished.

Подробнее
Номер записи: 64
11-01-2018 дата публикации

Transmission Shifting Assistance Device and Shifting Device for a Motorcycle

Номер: US20180009507A1
Автор: PITZER Norbert, ROEHRIG Berndt
Принадлежит:

A transmission shifting assistance device, in particular for a motorcycle, is provided. The transmission shifting assistance device, which allows shifting when the clutch is closed, includes a housing, a piston arranged in the housing, and at least one pressure spring provided in the housing. The piston may be moved relative to the housing by compressing at least one pressure spring. Furthermore, transmission shifting assistance device further includes a locking device separate from the at least one pressure spring. The locking device fixes the piston in a neutral position relative to the housing below a predetermined unlocking force exerted on the piston or the housing. 1. A motorcycle transmission shifting assistance device , comprising:a housing;a piston displaceably arranged in the housing;at least one compression spring arranged in the housing such that when compressed at least one of the at least one compression spring presses on the piston, anda locking device configured to fix the piston in a neutral position relative to the housing when an axial displacement force exerted on at least one of the piston and the housing is below a predefined unlocking force.2. The transmission shifting assistance device as claimed in claim 1 , whereinthe at least one compression spring includes two compression springs provided in the housing on opposite sides of the piston, andthe piston is located centrally in the housing when in a neutral position.3. The transmission shifting assistance device as claimed in claim 2 , whereinthe locking device has a locking element and a locking spring configured to apply a load on the locking spring.4. The transmission shifting assistance device as claimed in claim 3 , whereinthe locking spring is a spiral spring.5. The transmission shifting assistance device as claimed in claim 4 , whereinthe locking element is a ball.6. The transmission shifting assistance device as claimed in claim 5 , whereinthe piston has a piston recess configured to ...

Подробнее
Номер записи: 65
12-01-2017 дата публикации

Automatic control of a park mode in a motor vehicle

Номер: US20170009878A1
Автор: Gary P. Bertollini, Joseph F. Szczerba
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method is disclosed for controlling a park mode in a motor vehicle that includes a powertrain with a powerplant. The method includes identifying whether the vehicle is stopped. The method also includes identifying whether the powerplant is operating or is turned off. The method additionally includes identifying whether an operator of the vehicle is present inside or has vacated the vehicle. The method also includes commanding automatic selection of the park mode if the powerplant is turned off. Furthermore, the method includes commanding automatic selection of the park mode if the operator has vacated the vehicle, whether the powerplant is turned on and operating, or is turned off. The powertrain may include an automatic transmission operatively connected to the powerplant, and the park mode can be affected inside the transmission. A system for controlling such a powertrain via a controller programmed to execute the method is also disclosed.

Подробнее
Номер записи: 66
11-01-2018 дата публикации

SYSTEM AND METHOD FOR TRANSMISSION WITH CREEPER MODE SELECTION

Номер: US20180010684A1
Автор: Kail Zachary, Owen Amanda K.N., Rangan Narasimhan
Принадлежит:

A mechanical creeper mode selection system for a transmission of a work vehicle is provided, in which the transmission includes one or more range modes having one or more range mode shift mechanisms each driven by an electrohydraulic circuit. The system includes a creeper mode selection lever movable by an operator to select a creeper gear range. The system also includes a sensor that observes a position of the creeper mode selection lever and generates sensor signals based thereon. The system includes a controller that processes the sensor data to determine a movement of the creeper mode selection lever and outputs one or more control signals to the electrohydraulic circuit to position the one or more range mode shift mechanisms in a range neutral mode based on the movement of the creeper mode selection lever. 1. A mechanical creeper mode selection system for a transmission of a work vehicle , the transmission including one or more range modes having one or more range mode shift mechanisms each driven by an electrohydraulic circuit , the system comprising:a creeper mode selection lever movable by an operator to select a creeper gear range;a sensor that observes a position of the creeper mode selection lever and generates sensor signals based thereon; anda controller that processes the sensor data to determine a movement of the creeper mode selection lever and outputs one or more control signals to the electrohydraulic circuit to position the one or more range mode shift mechanisms in a range neutral mode based on the movement of the creeper mode selection lever.2. The mechanical creeper mode selection system of claim 1 , wherein the creeper gear range comprises a high creeper gear range claim 1 , a low creeper gear range and a creeper neutral gear range claim 1 , and the controller outputs the one or more control signals based on the movement of the creeper mode selection lever out of the creeper neutral gear range.3. The mechanical creeper mode selection system of ...

Подробнее
Номер записи: 67
14-01-2021 дата публикации

SHIFT DEVICE FOR VEHICLE

Номер: US20210010587A1
Автор: Fukushima Takaaki, KATO Shori, NISHIKAWA Naotaka, Toyama Atsushi
Принадлежит:

A shift device for a vehicle includes a baseplate, a shift lever having a spherical shaft part at a lower end, and a control lever connected to the shift lever. The spherical shaft part of the shift lever is supported by the baseplate and configured to turn relative to the baseplate. A cable coupling part is provided at an upper part of the control lever. A turning shaft part supported by the baseplate is provided at a lower part of the control lever outward of the spherical shaft part of the shift lever in a vehicle width direction, and the turning shaft part is configured to turn relative to the baseplate. The control lever has a branched part between the cable coupling part and the turning shaft parts, and the branched part is located above the spherical shaft part and branched in the vehicle width direction. 1. A shift device for a vehicle , the shift device comprising:a baseplate supported by a vehicle body;a shift lever having a spherical shaft part at a lower end; anda control lever connected to the shift lever, the control lever being configured to transmit an operating force input into the shift lever in a vehicle body front-rear direction to a transmission through a cable, wherein:the spherical shaft part of the shift lever is supported by the baseplate and configured to turn relative to the baseplate;a cable coupling part to which the cable is coupled is provided at an upper part of the control lever;a turning shaft part supported by the baseplate is provided at a lower part of the control lever outward of the spherical shaft part of the shift lever in a vehicle width direction, and the turning shaft part is configured to turn relative to the baseplate;the control lever has a branched part between the cable coupling part and the turning shaft part; andthe branched part is located above the spherical shaft part and branched in the vehicle width direction so as to extend toward the turning shaft part.2. The shift device for the vehicle according to claim 1 ...

Подробнее
Номер записи: 68
14-01-2021 дата публикации

CONTROL DEVICE AND TRANSMISSION SYSTEM

Номер: US20210010588A1
Автор: KAWASAKI Mitsuhiko, Shahana Satoshi
Принадлежит:

A control device and a transmission system are provided that allow for comfortable traveling with a human-powered vehicle. The control device includes an electronic controller configured to control a transmission to shift a transmission ratio of a human-powered vehicle in accordance with a first shifting condition set based on a first reference value. The electronic controller is configured to shift the transmission ratio of the human-powered vehicle regardless of the first shifting condition upon determining a second shifting condition set based on travel information related to traveling of the human-powered vehicle is satisfied. 1. A control device comprising:an electronic controller configured to control a transmission to shift a transmission ratio of a human-powered vehicle in accordance with a first shifting condition set based on a first reference value,the electronic controller being configured to shift the transmission ratio of the human-powered vehicle regardless of the first shifting condition upon determining a second shifting condition set based on travel information related to traveling of the human-powered vehicle being satisfied.2. The control device according to claim 1 , whereinthe first shifting condition includes a first threshold value and a second threshold value that is smaller than the first threshold value,the electronic controller is configured to perform a second shifting that increases the transmission ratio of the human-powered vehicle upon determining the first reference value is greater than or equal to the first threshold value, andthe electronic controller is configured to perform a first shifting that decreases the transmission ratio of the human-powered vehicle upon determining the first reference value is less than or equal to the second threshold value.3. The control device according to claim 1 , whereinthe first reference value includes at least one of a cadence, a torque acting on a crank of the human-powered vehicle, a power, ...

Подробнее
Номер записи: 69
09-01-2020 дата публикации

METHOD FOR OPERATING A HYDROSTATIC TRANSMISSION OF A DRIVE TRAIN OF A MOTOR VEHICLE

Номер: US20200011416A1
Автор: HIEMER Marcus, KUHN Jan-Frederik, LAUPHEIMER Martin
Принадлежит:

A method for operating a hydrostatic transmission of a drive train of a motor vehicle. An automatic creep function of the motor vehicle is made possible by the hydrostatic transmission. in order to be able to realize the creep function in a reliable manner, a current value of a first parameter that is independent of a pedal position of an accelerator and a current value of a second parameter that is dependent on the pedal position are compared to each another. The creep function is then activated as long as the current value of the first parameter is greater than the current value of the second parameter. In the context of the creep function, the current value of the first parameter is used to determine a current value of a target delivery quantity of a hydrostatic machine of the transmission operated as a pump. 113-. (canceled)1412112. A method for operating a hydrostatic transmission () of a drive train () of a motor vehicle in which an automatic creep function of the motor vehicle is made possible by the hydrostatic transmission () , the method comprising:{'b': 19', '19, 'comparing a current value of a first parameter and a current value of a second parameter to one another, with the first parameter being independent of a pedal position of an accelerator () and the second parameter being dependent on a pedal position of an accelerator ();'}activating the creep function if the current value of the first parameter is greater than a current value of the second parameter;{'b': 13', '12, 'determining, from the current value of the first parameter, a current value of a target delivery quantity of a hydraulic machine () of the transmission () operating as a pump in a context of the creep function;'}{'sub': 1', '2, 'b': 13', '19', '13, 'taking into account a nominal swivel angle (Φ) of the hydrostatic machine () that is independent of the pedal position of the accelerator () as the first parameter, and taking into account a nominal swivel angle (Φ) of the hydrostatic ...

Подробнее
Номер записи: 70
18-01-2018 дата публикации

AUTOMATIC TRANSMISSION CONTROL DEVICE

Номер: US20180015928A1
Автор: INOUE Takuichiro, KOGUCHI Takashi, Komatsu Makoto, NAGASE Yuuji, NODA Toshiaki, OKUTANI Sho, Tanaka Hiroyasu, WAKAYAMA Hideshi
Принадлежит:

An automatic transmission control device implements a downshift by disengagement of a clutch that is engaged in a gear position before the downshift. It is determined whether an engine state is in a predetermined region in which a change of an engine torque per a change of an accelerator pedal opening is smaller than that in another region, and the engine torque is within a predetermined range, and an engine rotational speed is within a predetermined range. It is determined whether an operating state is in a predetermined state of accelerator operation in which the accelerator pedal opening is larger than a predetermined value, and an accelerator pedal opening change rate has an absolute value smaller than a predetermined value. The downshift is inhibited in response to determination that the engine state is in the predetermined region and the operating state is in the predetermined state of accelerator operation. 1. An automatic transmission control device for an automatic transmission , comprising:a shift control section configured to implement a downshift by disengagement of a first frictional engagement element, wherein the first frictional engagement element is engaged in a gear position before the downshift;an engine state determination section configured to determine whether or not an engine state is in a predetermined region in which a change of an engine torque per a change of an accelerator pedal opening is smaller than that in another region, and the engine torque is within a predetermined range, and an engine rotational speed is within a predetermined range;an operating state determination section configured to determine whether or not an operating state is in a predetermined state of accelerator operation in which the accelerator pedal opening is larger than or equal to a predetermined value, and an accelerator pedal opening change rate has an absolute value smaller than or equal to a predetermined value; anda downshift inhibition section configured to ...

Подробнее
Номер записи: 71
19-01-2017 дата публикации

DEVICE AND METHOD FOR ADJUSTING A MOVEMENT OF AN OPERATING ELEMENT FOR A VEHICLE AUTOMATIC TRANSMISSION AND SHIFTING DEVICE FOR SHIFTING A VEHICLE AUTOMATIC TRANSMISSION

Номер: US20170016529A1
Автор: Rake Ludger, ROSENTRETER Sascha, Strassburg Karsten
Принадлежит: ZF FRIEDRICHSHAFEN AG

The disclosure provides a device for regulating a movement of an operating element for an automatic transmission of a vehicle. The device comprises a rotatable shaft and a bearing element for bearing the operating element. The bearing element can be moved together with the operating element relatively to the shaft with respect to a first axis of movement and between a rest position and a deflection position with respect to a second axis of movement. The device is characterized in that on the shaft are arranged a locking element for locking the movement of the bearing element from the rest position to the deflection position and/or a resetting element for resetting the bearing element from the deflection position to the rest position. 1. A device for regulating movement in an automatic transmission of a vehicle , the device comprising:a rotatable shaft, anda bearing element, wherein the bearing element is configured to move relative to the shaft with respect to a first axis of movement and between a rest position and a deflection position with respect to a second axis of movement,wherein on the shaft is arranged at least one of a locking element to lock a movement of the bearing element from the rest position to the deflection position or a resetting element for resetting the bearing element from the deflection position to the rest position.2. The device according to claim 1 , wherein the locking element comprises a locking protrusion extending radially in a section of the circumference of the shaft from a peripheral surface of the shaft.3. The device according to claim 1 , wherein the resetting element comprises a disk arranged on the shaft claim 1 , wherein the thickness of the disk in at least one section of its circumference increases from an initial thickness to a resetting thickness.4. The device according to claim 1 , wherein the locking element is arranged in a first circumferential section of the shaft and the resetting element is arranged in a second ...

Подробнее
Номер записи: 72
21-01-2016 дата публикации

ROTARY GEAR SHIFTER

Номер: US20160017983A1
Автор: Howe Brian D., Levesque Steven P.
Принадлежит:

In at least one embodiment a rotary shifter for a vehicle transmission includes a selector, a motor, a controller and a brake. The selector is adapted to be communicated with a vehicle transmission and rotated to multiple positions corresponding to different transmission gears. The motor is coupled to the selector to selectively alter the force required to rotate the selector among the multiple positions of the selector, and the controller is coupled to the motor and responsive to rotation of the selector to control actuation of the motor at least in part as a function of the rotary orientation of the selector. The brake is coupled to at least one of the selector or the motor to selectively inhibit or selectively prevent rotation of the selector. 1. A rotary shifter for a vehicle transmission , comprising:a selector adapted to be communicated with a vehicle transmission and rotated to multiple positions corresponding to different transmission gears;a motor coupled to the selector to selectively alter the force required to rotate the selector among the multiple positions of the selector;a controller coupled to the motor and responsive to rotation of the selector to control actuation of the motor at least in part as a function of the rotary orientation of the selector; anda brake coupled to at least one of the selector or the motor to selectively inhibit or selectively prevent rotation of the selector.2. The shifter of wherein the brake includes a magnetic field generator claim 1 , a rotor coupled to the motor claim 1 , and a brake member responsive to a magnetic field generated by the magnetic field generator to selectively engage the rotor and inhibit or prevent rotation of the rotor and motor.3. The shifter of wherein the magnetic field generator includes an electrical coil.4. The shifter of wherein the brake member engages the rotor when electrical power is not supplied to the magnetic field generator and the brake member is released from the rotor when electrical ...

Подробнее
Номер записи: 73
21-01-2016 дата публикации

AUTOMATIC TRANSMISSION CONTROL APPARATUS

Номер: US20160017985A1
Автор: Yamashita Hideaki, Yoshimura Yusuke
Принадлежит:

In an apparatus for controlling an automatic transmission having gear engaging mechanisms installed to engage one of gears to establish n-th speed when supplied with hydraulic pressure discharged from an oil pump driven by a prime mover, an electromagnetic pressure-regulating valve installed to pressure-regulate the hydraulic pressure, an electromagnetic shift valve installed at a hydraulic passage to supply the hydraulic pressure to the gear engaging mechanisms, and a current supply circuit to supply current to the solenoid valve, cut-off of current supply to the solenoid valve from the current supply circuit is delayed by a predetermined time period, when the ignition switch is turned off.

Подробнее
Номер записи: 74
21-01-2016 дата публикации

Control apparatus for automatic transmission

Номер: US20160017989A1
Автор: Masaaki Takamatsu, Masato Shigenaga, Yusuke Yoshimura
Принадлежит: Honda Motor Co Ltd

In an apparatus for controlling an automatic transmission connected to a prime mover mounted on a vehicle, having a torque converter equipped with a lock-up clutch, when the automatic transmission is gear-shifted to a predetermined gear at deceleration of the vehicle and it is determined that predetermined operating conditions of the vehicle are satisfied, a lock-up clutch engaging circuit is formed through a hydraulic supply circuit. Next it is determined whether engage-position sticking malfunction of the lock-up clutch has occurred based on a ratio of an input rotational speed of the automatic transmission relative to an output rotational speed of the prime mover when the lock-up clutch engaging circuit has been formed, and fail-safe control is then implement when the sticking is determined.

Подробнее
Номер записи: 75
21-01-2016 дата публикации

CONTROL DEVICE FOR AUTOMATIC TRANSMISSION

Номер: US20160017995A1
Автор: KONDO Masami, Shinohara Shuntaro, SUGAWARA Akio
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A control apparatus for automatic-transmission provided with input-clutch through which drive force generated by engine is input to automatic-transmission, released-side frictional coupling device being placed in released state to perform shifting action of automatic-transmission, and engaged-side frictional coupling device being placed in engaged state to perform shifting action, control apparatus including: first shifting mode control means including slipping means for placing input-clutch in released state, engaging means for placing input-clutch in engaged state, and releasing/engaging switching control means for controlling shifting action of automatic-transmission being performed in first shifting mode wherein released-side frictional coupling device is brought into released state, and engaged-side frictional coupling device is brought into engaged state, while input-clutch is placed in released or slipping state under control of slipping means, and input-clutch is then brought into engaged state under control of engaging means, with a change of operating speed of engine connected to input-shaft of automatic-transmission.

Подробнее
Номер записи: 76
18-01-2018 дата публикации

TRANSMISSION CONTROL DEVICE FOR AUTOMATIC TRANSMISSION

Номер: US20180017157A1
Автор: Noguchi Tomoyuki
Принадлежит:

A transmission controller includes: a corner detector that detects a corner; a predictor to predict a rolling amount based upon road data when the corner is detected and an accelerator opening degree is fully closed; a device to determine a first necessary engine braking amount in accordance with the rolling amount; a device to determine a first required speed change stage corresponding to the first necessary engine braking amount; a calculator to calculate a second necessary engine braking amount when the corner is detected and the accelerator opening degree is fully closed based upon a minimum required inter-vehicle distance with the vehicle ahead; a device to determine a second required speed change stage corresponding to the second engine braking amount; and a transmission controller to select, as a target speed change stage, either smaller one of the first or second required speed change stage, and then perform downshift control. 1. A transmission control device for an automatic transmission , comprising:a current position detection means configured to detect a current position of a vehicle;a storage means configured to store road data;a corner detection means configured to detect a corner appearing in a traveling direction of the vehicle based upon the detected current position and the stored road data;a prediction means configured to predict, when the corner is detected, a rolling amount exerted on the vehicle during passage through the corner, based upon the road data;a first necessary engine braking amount determination means configured to determine a first necessary engine braking amount in accordance with the predicted rolling amount;a first required speed change stage determination means configured to determine a first required speed change stage in accordance with the first necessary engine braking amount;a second necessary engine braking amount calculation means configured to calculate, when the corner is detected, a second necessary engine braking ...

Подробнее
Номер записи: 77
21-01-2021 дата публикации

VEHICLE CONTROL DEVICE AND VEHICLE CONTROL METHOD

Номер: US20210016775A1
Автор: Hayashi Satoshi, ISHIGURO Shinichi, NATSUMI Kouki, TAKAHASHI Naoki
Принадлежит:

A vehicle control device comprising: a balance gradient calculation unit configured to calculate a balance gradient that is a gradient at which a propulsive force of the vehicle and a resistance force applied to the vehicle are balanced when the vehicle travels in a gear-in coasting state in which an engine is connected to a gear and the vehicle travels without supplying fuel to the engine, in a case where a traveling state of the vehicle is a neutral coasting state; and a traveling control unit configured to: switch, based on the calculated balance gradient and a specified road gradient, the traveling state of the vehicle from the neutral coasting state to the gear-in coasting state in a case where the traveling state of the vehicle is the neutral coasting state; and end, the gear-in coasting state when determining that an end condition is satisfied. 1. A vehicle control device comprising an electronic control unit configured to:specify a road gradient of a section from a position of a vehicle to a position ahead by a predetermined distance from the position of the vehicle on a road on which the vehicle travels;calculate a balance gradient that is a gradient at which a propulsive force of the vehicle and a resistance force applied to the vehicle are balanced when the vehicle travels in a gear-in coasting state in which an engine is connected to a gear and the vehicle travels without supplying fuel to the engine, the balance gradient being calculated in a case where a traveling state of the vehicle is a neutral coasting state that is a state of traveling without connecting the engine to the gear; andswitch, based on the calculated balance gradient and the specified road gradient, the traveling state of the vehicle from the neutral coasting state to the gear-in coasting state in a case where the traveling state of the vehicle is the neutral coasting state; determine whether an end condition of the gear-in coasting state is satisfied after a predetermined time has ...

Подробнее
Номер записи: 78
22-01-2015 дата публикации

LEVER STYLE ELECTRONIC SHIFTER WITH CONCEALED LEVER POSITION

Номер: US20150020634A1
Автор: Brown Robert L., TenBrink Jay T.
Принадлежит:

A poly-stable electronic shifter assembly can include a poly-stable shift lever, a shift knob, a park, reverse, neutral and drive (PRND) indication area and a flexible member. The shift lever can be coupled to a base proximate a first end of the shift lever. The shift knob can be coupled to a second end of the shift lever. The PRND indication area can be associated with the shift knob. The flexible member can be positioned about the shift lever between the shift knob and the base such that the flexible member covers the shift lever and conceals a physical location of the shift lever when positioned in one of a PRND gear selection location. The PRND indication area can be disassociated with the PRND gear selection locations such that the PRND indication area includes an absence of alignment with the shift lever in the PRND gear selection locations. 1. A poly-stable electronic shifter assembly , comprising:a poly-stable shift lever coupled to a base proximate a first end of the poly stable shift lever;a shift knob coupled to the poly-stable shift lever at a second end opposite the first end;a park, reverse, neutral, and drive (PRND) indication area associated with the shift knob; anda flexible member positioned about the poly-stable shift lever between the shift knob and the base such that the flexible member covers the poly-stable shift lever and conceals a physical location of the poly-stable shift lever when positioned in one of a park, reverse, neutral and drive (PRND) gear selection location;wherein the PRNDL indication area is disassociated with the PRND gear selection locations such that the PRND indication area includes an absence of alignment with the physical locations of the poly-stable shift lever in the PRND gear selection locations.2. The poly-stable electronic shifter assembly of claim 1 , wherein the PRND indication area is positioned on an upper surface of the shift knob.3. The poly-stable electronic shifter assembly of claim 1 , wherein the flexible ...

Подробнее
Номер записи: 79
16-01-2020 дата публикации

SHIFT DEVICE

Номер: US20200018391A1
Автор: ISHIYAMA Momoko
Принадлежит:

A shift device includes a shift lever configured to move to a plurality of positions, a grip section mounted on the shift lever and configured to be grasped by a user, a contact detecting section mounted on the grip section and configured to detect contact with the user, a restricting section configured to restrict a movement of the shift lever, and a releasing section configured to determine whether the grip section is grasped by the user based on a result of detection by the contact detecting section, and release the shift lever from restriction on the movement upon determining that the grip section is grasped by the user. 1. A shift device comprising;a shift lever configured to move to a plurality of positions;a grip section mounted on the shift lever and configured to be grasped by a user;a contact detecting section mounted on the grip section and configured to detect contact with the user;a restricting section configured to restrict movement of the shift lever; anda releasing section configured to determine whether the grip section is grasped by the user based on a result of detection by the contact detecting section, and release the shift lever from restriction of the movement upon determining that the grip section is grasped by the user.2. The shift device according to claim 1 , wherein the releasing section is configured to determine that the grip section is grasped by the user claim 1 , upon detecting the contact with the user by the contact detecting section.3. The shift device according to claim 1 , wherein the releasing section is configured to determine that the grip section is grasped by the user claim 1 , upon detecting the result of detection meeting a predetermined condition.4. The shift device according to claim 1 , further comprising a position detecting section configured to detect a position of the shift lever claim 1 , andwherein the releasing section is configured to release the shift lever from the restriction of the movement being ...

Подробнее
Номер записи: 80
16-01-2020 дата публикации

Shift system theft protection feature

Номер: US20200018392A1
Автор: Arthur W. Nellett, Michael C. Vermeersch
Принадлежит: Steering Solutions IP Holding Corp

A steering column assembly includes a jacket assembly, a modular shift assembly, and a mounting bracket. The jacket assembly extends along a first axis. The modular shift assembly includes a shift bracket and a shift gate. The shift bracket is connected to the jacket assembly and defines a shift bracket opening. The shift gate is disposed on the shift bracket. The bracket defines a shift gate opening as well as first and second detents that extend from the shift gate opening. The mounting bracket is disposed on the shift bracket and has a tab that overlaps a portion of the shift gate.

Подробнее
Номер записи: 81
25-01-2018 дата публикации

Travel control device

Номер: US20180022336A1
Автор: Masuhiro Kondo, Noriaki Ikemoto, Takahiro Narita, Youhei Morimoto, Yuutarou ITOU
Принадлежит: Denso Corp

A travel control device repeats a burn control that accelerates a vehicle at a target acceleration until speed of the vehicle reaches an upper limit speed of a vehicle speed range and a coasting control that makes the vehicle travel by means of inertia until the speed of the vehicle reaches a lower limit speed of the vehicle speed range. Further, a vehicle speed width that is a width of the vehicle speed range and the target acceleration are changed based on calculated travel resistance.

Подробнее
Номер записи: 82
28-01-2016 дата публикации

TRANSMISSION CONTROL CIRCUIT

Номер: US20160025211A1
Автор: FRASSEK STEFFEN, RHEINHEIMER GUENTER, SCHAEFER HELMUT
Принадлежит:

A transmission control circuit for controlling a system pressure provided by a pressure pump in a transmission. The circuit includes a pressure control valve and an electronic control unit. Load states and operating states of the working machine can be detected by the control unit and transmission input torque limits associated with the load states and state values representing at least one first operating state and state values representing at least one second operating state are stored therein. The first operating state corresponds with the maximum system pressure and the second operating state corresponds with a reduced system pressure compared to the maximum system pressure. The circuit includes a pressure limiting valve activated by the control unit to overrule the pressure control valve in order to variably set the reduced system pressure. 1. A transmission control circuit for controlling a system pressure provided by a pressure pump in a transmission of a working machine , comprising:a pressure control valve for setting the provided system pressure to a maximum system pressure,an electronic control unit configured to detect load states and operating states of the working machine, the electronic control unit storing transmission input torque limits associated with the load states and state values representing at least one first operating state and at least one second operating state, wherein the first operating state corresponds with the maximum system pressure and the second operating state corresponds with a reduced system pressure compared to the maximum system pressure, anda pressure limiting valve being operably activated by the control unit to overrule the pressure control valve in order to variably set the reduced system pressure,wherein, while in the second operating state, an activation of the pressure limiting valve is based on a comparison between a detected load state and a transmission input torque limit.2. The transmission control circuit of ...

Подробнее
Номер записи: 83
26-01-2017 дата публикации

FASTENING DEVICE, SELECTOR LEVEL HOUSING, FORCE TRANSMISSION ELEMENT, SWITCHING DEVICE AND METHOD FOR FASTENING A SWITCHING DEVICE

Номер: US20170023128A1
Автор: SALUM Andreas, Spratte Joachim
Принадлежит: ZF FRIEDRICHSHAFEN AG

The present invention relates to an attachment mechanism, a gearshift lever housing, a force transmitting element, a shift device, and a method for attaching a shift device, which reduce a system noise that is transmitted from an engine compartment into a motor vehicle interior space. The attachment mechanism comprises an aperture for receiving the gearshift lever device, a bearing surface section at least partially encompassing the aperture, for bearing on a bearing element, a sealant receiver disposed in the bearing surface section, and a mount for supporting a section of a force transmitting device, by means of which the gearshift lever device can be connected to a motor vehicle transmission device in a shift-effecting manner, wherein the mount is disposed on a side of the bearing surface section facing away from the sealant receiver. The attachment mechanism is distinguished in that the sealant receiver is disposed such that it at least partially overlaps a support region delimited by the mount in terms of its cross section. 1. An attachment device for a gearshift lever device comprising:an aperture for receiving a gearshift lever device;{'b': '202', 'a bearing surface section () that at least partially encompasses the aperture, for bearing on a bearing element;'}a sealant receiver disposed in the bearing surface section; and{'b': '203', 'a mount for supporting a section of a force transmitting device, by means of which the gearshift lever device can be connected in a shift-effecting manner to a motor vehicle transmission device, wherein the mount is disposed on a side of the bearing surface section facing away from the sealant receiver (), wherein the sealant receiver at least partially overlaps, in terms of its cross section, a support region delimited by the mount.'}2. The attachment device of claim 1 , wherein the sealant receiver is formed by a cavity formed in the bearing surface section.3. The attachment device of claim 1 , wherein the mount is formed by ...

Подробнее
Номер записи: 84
26-01-2017 дата публикации

SHIFT LEVER APPARATUS AND CONTROL METHOD THEREOF

Номер: US20170023132A1
Автор: KIM Yong Hee, KWON Min Keun, NA Myung Lyul
Принадлежит:

A shift lever apparatus is provided and includes an operating part having fastening pins extracted therefrom and inserted thereinto, based on a signal input. A select lever part is coupled to a shift lever that rotates based on a shift pattern to rotate along with the shift lever. Additionally, the shift lever corresponds to a position of a shift stage based on the shift pattern and includes a plurality of insertion apertures into which the fastening pins are inserted. The fastening pins selectively permit or limit the rotation of the shift lever based on whether the fastening pins are inserted into the plurality of insertion apertures. 1. A shift lever apparatus , comprising:an operating part having fastening pins extracted therefrom and inserted thereinto, based on a signal input; anda select lever part coupled to a shift lever that rotates based on a shift pattern to rotate along with the shift lever and to correspond to a position of a shift stage based on the shift pattern, wherein the select lever part includes a plurality of insertion apertures into which the fastening pins are inserted in order to selectively permit or limit the rotation of the shift lever based on whether the fastening pins are inserted into the plurality of insertion apertures.2. The shift lever apparatus of claim 1 , wherein the insertion apertures of the select lever part includes a first aperture formed to correspond to a select position of a reverse stage claim 1 , a second aperture formed to correspond to a select position of a low speed stage among advance stages claim 1 , a third aperture formed to correspond to a select position of an intermediate speed stage claim 1 , and a fourth aperture formed to correspond to a select position of a high speed stage.3. The shift lever apparatus of claim 2 , wherein the third aperture extends to connect between the select position of the low speed stage and the select position of the intermediate speed stage and the fourth aperture extends to ...

Подробнее
Номер записи: 85
17-04-2014 дата публикации

Method for controlling synchronization of automated manual transmission

Номер: US20140107901A1
Автор: Joung Chul Kim, Young Min Yoon
Принадлежит: Hyundai Motor Co, Kia Motors Corp

A method for controlling synchronization of an automated manual transmission includes: a step of dividing synchronization section that divides the entire synchronization section where synchronization is performed into a plurality of synchronization sections in accordance with the speed of the synchronization; a step of setting the rate of change of a target number of revolutions that sets the rate of change of a target number of revolutions of an input shaft in accordance with the speed of the synchronization; and a step of synchronization that performs feedback control such that the rate of change of the number of revolutions of the input shaft is synchronized while following the rate of change of a target number of revolutions.

Подробнее
Номер записи: 86
25-01-2018 дата публикации

METHOD AND DEVICE FOR PRODUCING A BEARING ELEMENT OF A SHIFTING DEVICE FOR A VEHICLE TRANSMISSION, AND BEARING ELEMENT AND SHIFTING DEVICE FOR A VEHICLE TRANSMISSION

Номер: US20180023686A1
Автор: Giefer Andreas, Rake Ludger
Принадлежит: ZF FRIEDRICHSHAFEN AG

The invention relates to a method for the manufacturing of a bearing element of a shift device for a motor vehicle transmission. In a first process step a bearing element is provided, which comprises at least one projection and a coupling joint for the mechanical coupling of a selector lever in order to select a shift position of a motor vehicle transmission. The projection is overmolded by means of an assembly injection molding process with a bearing bushing material in order to form a bearing bushing to mount the bearing element in a moveable manner. 1. A method for the manufacturing of a bearing element of a shift device for a motor vehicle transmission , the method comprises the following steps:providing a bearing element with a projection and a coupling joint for the mechanical coupling of a selector lever to select a shift position of the motor vehicle transmission; andovermolding of the projection through an assembly injection molding procedure with a bearing bushing material in order to form a bearing bushing for the moveable mounting of the bearing element.2. The method according to claim 1 , wherein in the step of providing claim 1 , the projection or the bearing element is made out of a plastic material or metal claim 1 , and in the step of overmolding claim 1 , a plastic material is used as the bearing bushing material.3. The method according to claim 1 , wherein in the step of providing claim 1 , the coupling joint is provided with an opening to insert the selector lever through the bearing element and to hold the selector lever within the bearing element claim 1 , whereby the coupling joint comprises a first opening to accommodate a bearing bolt of the selector lever in the area of the opening) claim 1 , whereby in particular in the step of overmolding claim 1 , the bearing bushing material is additionally injected into the first opening in order to form a bearing shell for the rotatable mounting of the bearing bolt.4. The method according to claim 1 , ...

Подробнее
Номер записи: 87
25-01-2018 дата публикации

SHIFTING DEVICE FOR AN AUTOMATIC GEARBOX OF A MOTOR VEHICLE

Номер: US20180023687A1
Автор: BLUCHER Martin, Schmidt Thomas
Принадлежит: Kuster Holding GmbH

A shifting device () for an automatic gearbox of a motor vehicle has a housing () and a selector lever () for selecting a gear stage which selector lever is guided in the housing (). The shifting device () has an automatic shift gate () and a sequential shift gate (), and the housing () has fastening means () for fixing the shifting device () in the motor vehicle. The fastening means () are arranged so that the housing () can be fixed in a first position and in a second position which is rotated by 180 degrees relative to the first position. The fastening means () are arranged point-symmetrically in order to rotate the shifting device () by degrees, with the result that the respective fastening points coincide with the original fastening paints after the rotation and the fastening means () are fixed on in each case the same motor vehicle-side fastening points. 1. A shifting device for an automatic transmission of a motor vehicle , comprising:{'b': '4', 'a housing ();'}{'b': 6', '4, 'a gear selector lever () that is accommodated in the housing (), said lever being provided to select a gear of the automatic transmission;'}{'b': '18', 'an automatic shift gate (); and'}{'b': '20', 'a sequential shift gate ();'}{'b': 4', '10', '2', '10', '3', '10', '4', '10', '5', '2', '10', '2', '10', '3', '10', '4', '10', '5', '4', '18', '20', '18', '2, 'wherein the housing () has fastening means (., ., ., .) arranged point-symmetrically to affix the shifting device () in the motor vehicle, and wherein the fastening means (., ., ., .) are arranged in such a way that, the housing () can be affixed in a first position as well as in a second position that is rotated by 180° relative to the first position, wherein the automatic shift gate () and the sequential shift gate () in the first position are configured symmetrically to the automatic shift gate () and to the sequential shift gate () in the second position relative to the center of symmetry of the point symmetry, so that the shifting ...

Подробнее
Номер записи: 88
25-01-2018 дата публикации

VEHICLE AND CONTROL METHOD THEREOF

Номер: US20180023688A1
Автор: OHATA Shinobu
Принадлежит:

A controller causes a clutch to transition from a half-engaged state to an engaged state when a difference in rotational velocity between input and output sides of the clutch falls within a predetermined range in the half-engaged state of the clutch. The controller executes a moving start control to increase an output rotational velocity of a prime mover and cause the clutch to transition to the engaged state when a predetermined first condition is satisfied in the half-engaged state of the clutch. 1. A vehicle comprising:a prime mover;a pair of right and left wheels;a clutch disposed in a driving force transmission path between the prime mover and the pair of right and left wheels; anda controller configured or programmed to cause the clutch to transition from a half-engaged state to an engaged state when a difference in rotational velocity between input and output sides of the clutch falls within a predetermined range in the half-engaged state of the clutch; whereinthe controller executes a moving start control to increase an output rotational velocity of the prime mover and cause the clutch to transition to the engaged state when a first condition is satisfied in the half-engaged state of the clutch.2. The vehicle according to claim 1 , wherein the first condition includes at least one requirement that a duration of the half-engaged state of the clutch is greater than or equal to a predetermined threshold period of time claim 1 , that an amount of heat released from the clutch is greater than or equal to a predetermined heat released threshold claim 1 , and that a start command is received from a switch.3. The vehicle according to claim 1 , whereinthe first condition includes a requirement that an amount of heat released from the clutch is greater than or equal to a predetermined heat released threshold; andthe controller is configured or programmed to calculate the amount of heat released based on a torque to be transmitted by the clutch and/or the difference in ...

Подробнее
Номер записи: 89
25-01-2018 дата публикации

CONTROL DEVICE FOR VEHICLE AND CONTROL METHOD FOR VEHICLE

Номер: US20180023691A1
Автор: Ota Keisuke, SAGAWA Ayumu
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An electronic control unit updates a target gear shift characteristic value to a target gear shift characteristic value which is set at a gear shift start time with a first predetermined torque based on the first predetermined torque and performs gear shift control from a degree of progress in gear shift based on the updated target gear shift characteristic value, when an input torque becomes equal to or less than the first predetermined torque due to an accelerator returning operation or the like during a gear shift (during a power-on upshift). Accordingly, it is possible to perform stable gear shift control to cope with a decrease in input torque during the gear shift and to suppress occurrence of a shock. 1. A control device for a vehicle ,the vehicle including an automatic transmission, the automatic transmission including a plurality of frictional engagement elements and being configured to establish one shift stage of a plurality of shift stages by selectively engaging the plurality of frictional engagement elements with each other,the control device comprising:an electronic control unit configured to perform gear shift control corresponding to a degree of progress in gear shift based on a target gear shift characteristic value, the target gear shift characteristic value being a value corresponding to an input torque of the automatic transmission at a gear shift start time; and 'the first predetermined torque being an input torque that is less by a predetermined torque than the input torque at the gear shift start time, the first target value being a value of the target gear shift characteristic value that is set when the gear shift starts with the first predetermined torque, the first updating time being a time at which the target gear shift characteristic value is updated to the first target value.', 'when the electronic control unit determines that the input torque becomes equal to or less than a first predetermined torque during a gear shift of the ...

Подробнее
Номер записи: 90
25-01-2018 дата публикации

System and method for changing driving modes using navigation and control

Номер: US20180023692A1
Автор: Christopher T. Gauthier
Принадлежит: Toyota Motor Engineering and Manufacturing North America Inc

Methods, systems, and apparatus for automatically changing vehicle driving modes. An automatic shift control system includes a transmission configured to provide engine output for movement of the vehicle and a navigation unit configured to obtain navigational information including a current location of the vehicle. The automatic shift control system includes an electronic control unit (ECU) connected to the navigation unit. The ECU is configured to determine a current route having multiple segments based on the current location and a destination location and determine a shift schedule based on a driver behavior pattern. The ECU is configured to control the transmission to cause shifts of the transmission based on the shift schedule and the current location.

Подробнее
Номер записи: 91
25-01-2018 дата публикации

TRANSMISSION CONTROL DEVICE FOR AUTOMATIC TRANSMISSION

Номер: US20180023693A1
Автор: Noguchi Tomoyuki
Принадлежит: HONDA MOTOR CO., LTD.

A corner determinator detects a corner appearing in a traveling direction of a vehicle and determines whether a detected corner is a blind corner based upon a current position of the vehicle and road data. A blind distance calculator calculates a distance from the determined blind corner to the vehicle based upon the current position of the vehicle and the road data. A necessary engine braking amount calculator calculates, on the basis of a calculated distance, a necessary engine braking amount necessary for decelerating a current vehicle speed to a vehicle speed at which it is possible to stop around the blind corner when a braking operation is performed with a full braking amount. A required speed change stage determinator calculates a required speed change stage based upon the determined necessary engine braking amount. A transmission controller performs a downshift to a determined required speed change stage. 1. A transmission control device for an automatic transmission , comprising:a current position detector that is configured to detect a current position of a vehicle;a storage device configured to store road data;a corner determinator that is configured to detect a corner appearing in a traveling direction of the vehicle and determine whether a detected corner is a blind corner in which an end of the corner is not visible from the vehicle, based upon the detected current position and the stored road data;a blind distance calculator that is configured to calculate, when a determination is made that the corner is a blind corner, a distance from the determined blind corner to the vehicle based upon the detected current position and the stored road data;a necessary engine braking amount calculator that is configured to calculate, based upon the calculated distance, a necessary engine braking amount necessary for decelerating a current vehicle speed to a vehicle speed at which it is possible to stop around the blind corner when a braking operation is performed ...

Подробнее
Номер записи: 92
25-01-2018 дата публикации

CONTROL DEVICE FOR VEHICLE AND CONTROL METHOD FOR VEHICLE

Номер: US20180023698A1
Автор: ASAMI Tomohiro, CHIMBE Tomohiro, Ota Keisuke, TSUKAMOTO Norihiro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An electronic control unit is configured to set a target torque phase time which is used in torque phase control based on an output shaft torque difference. The electronic control unit sets the target torque phase time to be longer when the output shaft torque difference is large than when the output shaft torque difference is small. Accordingly, since the target torque phase time can be appropriately set, it is possible to achieve both of preventing a sudden change in driving force and torsion vibration of an output shaft and preventing a decrease in drivability due to hesitation at the same time. Sudden change in driving force and torsion vibration of the output shaft occur when the difference in driving force between before and after a gear shift is large. Hesitation occurs when the difference in driving force between before and after the gear shift is small. 1. A control device for a vehicle ,the vehicle including an engine, driving wheels, and an automatic transmission, the automatic transmission being connected to the engine via an input shaft and being connected to the driving wheels via an output shaft, the automatic transmission being a stepped type automatic transmission and being configured to establish one shift stage of a plurality of shift stages by selectively engaging a plurality of frictional engagement elements with each other, the control device comprising set a target torque phase time during a gear shift of the automatic transmission based on an output shaft torque difference, the output shaft torque difference being a difference between a torque of the output shaft before the gear shift and a torque of the output shaft after the gear shift; and', 'perform torque phase control based on the set target torque phase time, the torque phase control being control to control torque capacities of a disengagement-side element and an engagement-side element, the plurality of frictional engagement elements including the disengagement-side element and the ...

Подробнее
Номер записи: 93
25-01-2018 дата публикации

CONTROL APPARATUS FOR AUTOMATIC TRANSMISSION AND CONTROL METHOD FOR AUTOMATIC TRANSMISSION

Номер: US20180023699A1
Автор: FUJIWARA Sadamu, Yamamoto Hideharu
Принадлежит:

A control apparatus includes a select lever, an inhibitor switch, a manual valve, a first SOL, a second SOL, and a controller. The controller controls the first SOL and the second SOL such that a hydraulic pressure is supplied to a first friction element and a second friction element when the inhibitor switch detects a D range. The controller determines that an operation position is at an intermediate position when operations of the first friction element and the second friction element are not detected. The controller determines that the first SOL has a failure when the operation of the first friction element is not detected. 1. A control apparatus for automatic transmission , comprising:an operating member used to select a range of an automatic transmission including a traveling range and a non-traveling range;a detecting sensor configured to detect the selected range by the operating member;a valve disposed at an oil passage that couples a hydraulic pressure supply source and a plurality of forward movement friction elements, a supply of a hydraulic pressure from the hydraulic pressure supply source to the plurality of forward movement friction elements being allowed while the traveling range is selected, the valve being configured to drive according to an operation of the operating member;a hydraulic pressure controller disposed at the oil passage, the hydraulic pressure controller being configured to control the supplied hydraulic pressure to the plurality of forward movement friction elements;a controller configured such that if the detecting sensor detects the traveling range, the controller controls the hydraulic pressure controller to supply the plurality of forward movement friction elements with the hydraulic pressure; andconfigured such that if the detecting sensor detects the traveling range, the controller executes a determination, the controller being configured such that if operations of all the friction elements of the plurality of forward movement ...

Подробнее
Номер записи: 94
10-02-2022 дата публикации

Apparatus for controlling engine and method thereof

Номер: US20220042445A1
Автор: Gun Ku Lee, Su Ho Lee
Принадлежит: Hyundai Motor Co, Kia Motors Corp

An engine control apparatus and an engine control method for a vehicle are disclosed. The engine control apparatus includes: an integrated thermal management valve in which an opening degree of a plurality of valves is adjusted by rotation of a cam; a storage to store an opening degree of the integrated thermal management valve based on a road slope and a transmission gear value; and a controller that controls the opening degree of the integrated thermal management valve by using an engine revolutions per minute (RPM) and an accelerator pedal value. In particular, when the accelerator pedal value is smaller than a predetermined threshold, the controller controls the opening degree of the integrated thermal management valve based on the road slope and the transmission gear value.

Подробнее
Номер записи: 95
10-02-2022 дата публикации

CONTINUOUSLY ADJUSTABLE SHIFTER FOR VEHICLE

Номер: US20220042593A1
Автор: Grassauer Erik Daniel
Принадлежит:

An adjustable shifter for a vehicle is provided. The adjustable shifter comprises a body, a shift shaft mounted within the body, and a height adjustment mechanism configured to adjust a height of the shift shaft relative to the body in a continuously adjustable manner throughout an operating height range of the shift shaft. 1. An adjustable shifter for a vehicle , the adjustable shifter comprising:a body;a shift shaft mounted within the body; anda height adjustment mechanism configured to adjust a height of the shift shaft relative to the body in a continuously adjustable manner throughout an operating height range of the shift shaft.2. The adjustable shifter of claim 1 , whereinthe height adjustment mechanism includes a shaft adjustment affordance configured to be operated by a vehicle operator during operation of the vehicle to adjust the height of the adjustable shifter in the continuous manner.3. The adjustable shifter of claim 2 , whereinthe shaft adjustment affordance includes a threaded hole that is threadedly engaged with a lower threaded section of the shift shaft, the shaft adjustment affordance being configured to rotate to cause the height of the shift shaft to be adjusted relative to the body.4. The adjustable shifter of claim 3 , whereinthe body includes a bore having top opening,the shift shaft is positioned so as to extend through the top opening into the bore, andthe shaft adjustment affordance is positioned proximate the top opening.5. The adjustable shifter of claim 3 , whereinthe body includes a bore having top opening,a shift shaft journal bushing is disposed within the bore, the shift shaft journal bushing being configured to receive a lower section of the shift shaft, andthe shaft adjustment affordance is positioned proximate the top opening of the bore.6. The adjustable shifter of claim 5 , whereinthe shift shaft journal bushing is non-rotatably secured within the bore via at least one outer longitudinal key that engages an axial keyway ...

Подробнее
Номер записи: 96
10-02-2022 дата публикации

Heat load estimation device and heat load estimation method for friction engaging element

Номер: US20220042594A1
Автор: Atsushi Tabata, Hideaki Bunazawa, Keita Sasaki, Ken Imamura, Koichi Okuda, Kota Fujii
Принадлежит: Toyota Motor Corp

A heat load estimation device for a friction engaging element that estimates a heat load when at least one of a temperature, a heat generation amount, and presence or absence of seizure in the friction engaging element at a time of shifting of the transmission is regarded as the heat load, includes a storage device and an execution device. The storage device stores mapping data defining mapping. The mapping includes, as an input variable, a speed variable that is a variable indicating a relative rotation speed of members of the friction engaging element and a hydraulic pressure variable that is a variable indicating hydraulic pressure during the shifting of the transmission, and includes, as an output variable, the heat load. The execution device executes a calculation process for calculating a value of the output variable and a change process for changing an execution mode of the calculation process.

Подробнее
Номер записи: 97
10-02-2022 дата публикации

TEMPERATURE ESTIMATION DEVICE FOR FRICTION ENGAGING ELEMENT

Номер: US20220042595A1
Автор: FUJII Kota, IMAMURA Ken, Okuda Koichi, Tabata Atsushi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A temperature estimation device for friction engaging elements including an execution device and a storage device is provided. The storage device stores mapping data that defines mapping. The mapping includes, as an input variable, a heat amount variable that is a variable indicating an amount of heat generated by the friction engaging elements during the shifting of the transmission and a shifting variable indicating the friction engaging elements to be engaged at the time of the shifting of the transmission, and, as an output variable, the temperature. The execution device executes an acquisition process of acquiring a value of the input variable and a calculation process of inputting the value of the input variable acquired by the acquisition process into the mapping to calculate a value of the output variable. 1. A temperature estimation device for a friction engaging element that is applied to a vehicle provided with a transmission including a plurality of friction engaging elements that operate with hydraulic pressure , and that estimates a temperature of the friction engaging elements at a time of shifting of the transmission , the temperature estimation device comprising:an execution device; anda storage device, wherein,the storage device is configured to store mapping data that defines mapping,the mapping includes, as an input variable, a heat amount variable and a shifting variable, and, as an output variable, the temperature, the heat amount variable being a variable indicating an amount of heat generated by the friction engaging elements during the shifting of the transmission, and the shifting variable indicating the friction engaging elements to be engaged at the time of the shifting of the transmission, andthe execution device is configured to execute an acquisition process of acquiring a value of the input variable and a calculation process of inputting the value of the input variable acquired by the acquisition process into the mapping to calculate ...

Подробнее
Номер записи: 98
23-01-2020 дата публикации

SHIFT CONTROL DEVICE AND SHIFT CONTROL METHOD FOR VEHICLE

Номер: US20200023849A1
Автор: Araki Toshimitsu, Endo Yasuhiro, HONMA Tomoaki, KUROIWA Hiroshi
Принадлежит:

A shift control device for a vehicle includes: an engine; a shift mechanism disposed between the engine and driving wheels; a shift control section configured to control a transmission gear ratio of the shift mechanism; and a fuel cut control section configured to stop a fuel supply to the engine, at least when an accelerator pedal is in a release state, and when an engine speed is equal to or greater than a predetermined rotation speed, the shift control section being configured to perform a minimum rotation speed restriction control to control the transmission gear ratio of the shift mechanism so that the minimum rotation speed of the engine is equal to or greater than the predetermined rotation speed regardless of a vehicle front condition and an accelerator operation condition. 1. A shift control device for a vehicle comprising:an engine;a shift mechanism disposed between the engine and driving wheels;a shift control section configured to control a transmission gear ratio of the shift mechanism; anda fuel cut control section configured to stop a fuel supply to the engine, at least when an accelerator pedal is in a release state, and when an engine speed is equal to or greater than a predetermined rotation speed,the shift control section being configured to perform a minimum rotation speed restriction control to control the transmission gear ratio of the shift mechanism so that the minimum rotation speed of the engine is equal to or greater than the predetermined rotation speed regardless of a vehicle front condition and an accelerator operation condition.2. The shift control device for the vehicle as claimed in claim 1 , wherein the shift control section is configuredto set a target engine speed when the minimum rotation speed restriction control is performed, to a restriction minimum rotation speed obtained by adding a predetermined value to the predetermined rotation speed,to set the predetermined rotation speed to a rotation speed which is used as an engine ...

Подробнее
Номер записи: 99
23-01-2020 дата публикации

SEGMENT DETERMINATION DEVICE AND SEGMENT DETERMINATION METHOD

Номер: US20200023853A1
Автор: KANDA Yoshitaka
Принадлежит:

A segment determination device is provided with an altitude information acquisition unit that acquires altitude information about a plurality of points on a road on which a vehicle travels, a feature amount determination unit that determines a feature amount indicating gradient information about the road based on the altitude information about points including a first point ahead of the vehicle in a traveling direction of the vehicle and a second point further ahead of the first point among the plurality of points, and a segment determination unit that, in a case where the feature amount is outside of a predetermined range, determines a segment in which the first point is set as a start point and whichever of two points adjacent to the second point that is closer to the vehicle is set as an end point. 1. A segment determination device comprising:an altitude information acquisition unit configured to acquire altitude information about a plurality of points on a road on which a vehicle travels;a feature amount determination unit configured to determine a feature amount that indicates gradient information about the road based on the altitude information about points including a first point ahead of the vehicle in a traveling direction of the vehicle and a second point further ahead of the first point among the plurality of points; anda segment determination unit configured to, in a case where the feature amount is outside of a predetermined range, determine a segment in which the first point is set as a start point and whichever of two points adjacent to the second point that is closer to the vehicle is set as an end point.2. The segment determination device according to claim 1 ,wherein the feature amount determination unit determines, as the feature amount, a sum of areas of regions surrounded by a line obtained by connecting the first point ahead of the vehicle and the second point farther from the vehicle than the first point among the plurality of points and a ...

Подробнее
Номер записи: 100