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 2322. Отображено 100.
22-03-2012 дата публикации

Wheel disconnect system

Номер: US20120067689A1
Автор: Michael Eastman
Принадлежит: Schaeffler Technologies AG and Co KG

An integrated wheel disconnect system is provided, including a mechanically actuated engagement interlock selector assembly. The engagement interlock selector assembly including a housing, an interlock mechanism disposed in the housing, a spring disposed in the housing, and an actuator assembly, arranged to displace the interlock mechanism towards or away from the spring. The engagement interlock selector assembly is operated by an actuator module, such as a pin, sliding along an external ramp on the interlock mechanism, the mechanism moving axially to selectively engage and disengage the wheel hub from the drive axle.

Подробнее
Номер записи: 1
31-01-2013 дата публикации

Control method and control apparatus for four-wheel drive vehicle

Номер: US20130030664A1
Автор: Akiyoshi KAKITA, Hiroto Kawano, Ryohei Shigeta, Tomohiro Nozu, Yasushi Yagi
Принадлежит: JTEKT Corp, Mazda Motor Corp

Discloses is a method of controlling a four-wheel drive vehicle equipped with a torque distribution device capable of changing a torque distribution amount for secondary driven wheels according to an input current to be applied thereto. This method comprises the steps of: applying, to the torque distribution device, a current value corresponding to a target torque distribution amount; and, performing a current changing control for increasing and reducing the input current to the torque distribution device. The step of performing a current changing control includes causing the input current to the torque distribution device to be temporarily increased to a value greater than the current value corresponding to the target torque distribution amount, and then returned to the current value corresponding to the target torque distribution amount, and repeating the temporary increasing of the input current at least at intervals of a predetermined time.

Подробнее
Номер записи: 2
25-04-2013 дата публикации

Drive-force-distribution control device

Номер: US20130098201A1
Автор: Daisuke Hiroi, Shinichi Suzuki
Принадлежит: Nissan Motor Co Ltd

A drive-force-distribution control device includes an input-side bevel gear and an output-side bevel gear, a center shaft, left and right clutches, a housing, a bearing and a shim member. The output-side bevel gear is supported on the center shaft such that the output-side bevel gear meshes with the input-side bevel gear. The housing can be divided in the radial direction of the output-side bevel gear. The bearing is disposed at one end of the center shaft. The shim member is inserted in an axial-direction gap between the housing and the bearing. The output-side bevel gear and the center shaft can be attached to the housing from the radial direction. The axial end of the center shaft is located towards the other end with respect to the axial end of the bearing.

Подробнее
Номер записи: 3
18-07-2013 дата публикации

Vehicle control unit

Номер: US20130184947A1
Автор: Ryohei Shigeta, Tomohiro Nozu
Принадлежит: JTEKT Corp

When a vehicle speed is equal to or higher than a first vehicle speed threshold value or an uphill gradient is lower than a first gradient threshold value and uphill start control is cancelled, if a state where the vehicle speed is lower than a second vehicle speed threshold value and the uphill gradient is equal to or higher than a second gradient threshold value continues for a first set time, uphill start control is executed. When the vehicle speed is decreased after being once increased within a range where the vehicle speed is lower than the first vehicle speed threshold value and uphill start control is cancelled, if a state where the vehicle speed is lower than the second vehicle speed threshold value and the uphill gradient is equal to or higher than the second gradient threshold value continues for a second set time, the uphill start control is executed.

Подробнее
Номер записи: 4
25-07-2013 дата публикации

Tilting ball variator continuously variable transmission torque vectoring device

Номер: US20130190131A1
Автор: Mark R.J. Versteyhe, Matthias W.j. BYLTIAUW, Thibaut E. DUCHENE
Принадлежит: Dana Ltd

A torque vectoring device is provided. The torque vectoring device includes a drive member engaged with a power source, a plurality of spherical adjusters configured to be tiltable and rotatable with respect to the drive member, a first output frictionally engaged with the spherical adjusters, and a second output frictionally engaged with the spherical adjusters. A torque distribution between the first output and the second output may be adjusted by tilting the plurality of spherical adjusters. The spherical adjusters also facilitate a differential action between the first output and the second output.

Подробнее
Номер записи: 5
25-07-2013 дата публикации

Powertrain system having lockable differential

Номер: US20130190995A1
Автор: Brian A. Byers, David R. Wisley, Fazal A. Goraya, Gerry O. McCann, Kevin B. Grover
Принадлежит: Caterpillar Inc

A powertrain system for a mobile machine is disclosed. The powertrain system may have a power source, a plurality of traction devices, and a differential operatively connecting an output of the power source with the plurality of traction devices. The powertrain may also have a manual input device movable by an operator to generate a first signal indicative of a desire to lock the differential, at least one sensor configured to generate a second signal indicative of a parameter the mobile machine, and a controller in communication with the at least one sensor, the manual input device, and the differential. The controller may be configured to inhibit locking of the differential based on the first signal when the second signal indicates the parameter deviating from an acceptable range.

Подробнее
Номер записи: 6
06-02-2014 дата публикации

Control device for unlocking irreversible rotary transmission system

Номер: US20140039771A1
Автор: Kenichi Mori, Yutaka Kaneko
Принадлежит: Nissan Motor Co Ltd

An unlocking controller is provided for an irreversible rotary transmission system having the irreversible rotary transmission system having an irreversible rotation transmission element arranged between an input shaft and an output shaft. The unlocking controller includes an input shaft rotation direction determination section and an unlocking torque setting section. The input shaft rotation direction determination section determines whether an input shaft rotational direction is the same as, or opposite to, a direction of the load torque of the output shaft. The unlocking torque setting section conducts an unlocking torque control that sets the unlocking torque a higher value when the input shaft rotational direction and the direction of the load torque of the output shaft are the same as while the lock is released, than when the input shaft rotational direction is opposite to the direction of the direction of the load torque of the output shaft.

Подробнее
Номер записи: 7
06-02-2014 дата публикации

Work Machine Drive Train Torque Vectoring Based on Work Cycle Recognition

Номер: US20140039772A1
Автор: Jeffrey Edward Jensen
Принадлежит: Caterpillar Inc

A machine may include a powertrain drivingly connected to the wheels through a torque transfer unit to transfer torque to the front wheels as a function of a desired front torque and to the rear wheels as a function of a desired rear torque. At least one sensor of the machine may detect a value of an operating parameter indicative of a work cycle step being performed by the machine. A control unit determines the work cycle step being performed as a function of the value of the parameter, and the desired front and rear torques as a function of the work cycle step. The control unit also considers the weight and position of a load of material borne by an implement of the machine in determining the work cycle step being performed.

Подробнее
Номер записи: 8
06-03-2014 дата публикации

Vehicle and method of controlling a vehicle

Номер: US20140067216A1
Автор: Ian Beverley, Paul Beever, Pete Stares, Russell Osborn, Shaun Wick
Принадлежит: Jaguar Land Rover Ltd

Embodiments of the present invention provide a motor vehicle having: prime mover means; at least first and second groups of one or more wheels; and a driveline operable to connect the prime mover means to the first and second groups of one or more wheels such that the first group of one or more wheels and not the second group is coupled to a torque transmission path from the prime mover means when the driveline is in a first mode of operation and both the first and second groups of one or more wheels are coupled to a torque transmission path from the prime mover means when the driveline is in a second mode of operation, the driveline including an auxiliary portion for connecting the second group to the torque transmission path from the prime mover means, the auxiliary portion comprising first and second releasable torque transmitting means and a prop shaft, the first releasable torque transmitting means being operable to connect a first end of the prop shaft to the torque transmission path from the prime mover means, the second releasable torque transmitting means being operable to connect a second end of the prop shaft to the second group of one or more wheels, the vehicle further comprising control means operable to control the first and second torque transmitting means to switch the driveline between the first and second modes of operation such that in the first mode the prop shaft is disconnected from both the torque transmission path from the prime mover means and said second group of one or more wheels, wherein when in the first mode the vehicle is operable to control the driveline to switch from first mode to the second mode responsive to a speed of the vehicle.

Подробнее
Номер записи: 9
07-01-2016 дата публикации

Drive Control System for Work Vehicle

Номер: US20160001655A1
Автор: Kono Michita, Matsuzaki Akihiro, YOSHIKAWA Satoshi
Принадлежит:

A drive control system for a work vehicle is provided with a power transmission device that drives front wheels and rear wheels, a request determination unit, and a drive mode control unit. The power transmission device has a drive mode switching mechanism that performs drive mode switching between a four-wheel drive mode in which drive power is transmitted to front wheels and rear wheels and a two-wheel drive mode in which drive power is transmitted to only the rear wheels. The request determination unit determines a necessity for an increase in drive power on a contact area of the work vehicle, and outputs an increase request based on the determination result. The drive mode control unit outputs a drive mode switching request for switching to the four-wheel drive mode to the drive mode switching mechanism, in response to output of the increase request. 1. A drive control system for a work vehicle , comprising:a power transmission device having a drive mode switching mechanism that performs drive mode switching between a four-wheel drive mode in which drive power is transmitted to front wheels and rear wheels and a two-wheel drive mode in which drive power is transmitted to only the rear wheels;a request determination unit that determines a necessity for an increase in drive power on a contact area of the work vehicle, and outputs an increase request depending on the determination result;a drive mode control unit that outputs a drive mode switching request for switching to the four-wheel drive mode to the drive mode switching mechanism, in response to output of the increase request; anda target revs detection unit that detects a target number of revolutions of an engine of the work vehicle,wherein the request determination unit outputs the increase request, when an actual number of revolutions of the engine is greater than the target number of revolutions by a predetermined value or more, and wherein the predetermined value is stored.2. The drive control system for ...

Подробнее
Номер записи: 10
05-01-2017 дата публикации

HYDRAULIC MODE-STABLE POWERTRAIN TRANSFER CASE

Номер: US20170001518A1
Автор: Pritchard Larry A.
Принадлежит:

A transfer case () for translating rotational torque from an engine () to first and second differentials (). A primary shaft () is supported in a housing () and has an input in communication with the engine () and an output in communication with the first differential (). A secondary shaft () is disposed in communication with the second differential (). A clutch () selectively translates torque between the shafts () and moves between a first position (A) wherein torque is translated to the secondary shaft (), and a second position (B) wherein torque is interrupted. An actuator () with a piston () movably supported in a cylinder () moves the clutch (). A lock () moves between a locked configuration (A) engaging the piston () to prevent the clutch () from moving, and an unlocked configuration (B) releasing the piston () allowing the clutch () to move. 12622343626. A transfer case () for translating rotational torque from an engine () to first and second differentials ( , ) of a vehicle , said transfer case () comprising:{'b': '48', 'a housing ();'}{'b': 50', '48', '50', '22', '50', '34, 'a primary shaft () rotatably supported in said housing () and having an input end (A) in rotational communication with the engine () and an output end (B) in rotational communication with the first differential ();'}{'b': 52', '36, 'a secondary shaft () in rotational communication with the second differential ();'}{'b': 54', '50', '52', '54', '54', '52', '54', '52, 'a clutch assembly () operatively connected between said primary shaft () and said secondary shaft () for selectively translating rotational torque therebetween, said clutch assembly () being selectively movable between a first position (A) wherein rotational torque is translated to said secondary shaft (), and a second position (B) wherein rotational torque is interrupted to said secondary shaft ();'}{'b': 64', '66', '68', '66', '68', '54', '68', '66', '54', '54', '54, 'an actuator () having a cylinder () and a piston () ...

Подробнее
Номер записи: 11
01-01-2015 дата публикации

VEHICLE AND STEERING APPARATUS

Номер: US20150006036A1
Автор: Nishimori Takashi
Принадлежит: HONDA MOTOR CO., LTD.

A vehicle has a rear wheel drive device for driving rear wheels independently of a front wheel drive device. A drive mode control unit performs at least one of a first switching operation for switching between a front-wheel-only-drive mode and a rear-wheel-only-drive mode, a second switching operation for switching between a composite drive mode and the rear-wheel-only-drive mode, and a third switching operation for switching between the composite drive mode and the front-wheel-only-drive mode. When the drive mode control unit performs any one of the first switching operation, the second switching operation, and the third switching operation, an assistive force controller of the steering apparatus changes a control process for controlling a steering assistive force. 1. A steering apparatus for use in a vehicle including a front wheel drive device for driving front wheels , a rear wheel drive device for driving rear wheels independently of the front wheel drive device , and a drive mode control unit for controlling the front wheel drive device and the rear wheel drive device to control drive modes of the front wheels and the rear wheels , wherein the drive mode control unit performsa first switching operation of switching between a front-wheel-only-drive mode in which only the front wheels are driven and a rear-wheel-only-drive mode in which only the rear wheels are driven; andthe steering apparatus further comprises:a manual steering device that manually steers steerable wheels, which are at least the front wheels or the rear wheels;an assistive force generator, which generates a steering assistive force acting in a same direction as or in an opposite direction to a steering force applied to the manual steering device, for assisting in steering the steerable wheels with the manual steering device; andan assistive force controller that controls the steering assistive force; andwhen the drive mode control unit performs the first switching operation, the assistive ...

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

Clutch control device for four-wheel drive vehicle

Номер: US20170008396A1
Автор: Atsuhiro Mori, Katsuyoshi Ogawa, Makoto Morita, Shunichi Mitsuishi, Tetsu Takaishi
Принадлежит: Nissan Motor Co Ltd

A clutch control device is provided for a four-wheel drive vehicle. The clutch control device is able to suppress the elevation of the temperature of the oil supplied to a friction clutch during two-wheel drive travel when the friction clutch is released. The clutch control device includes a dog clutch and an electronic control coupling. The friction clutch is housed in a coupling case. When the dog clutch and the friction clutch are released, a two-wheel drive mode is selected. The coupling case has a passage opening that is closed to retain lubrication oil in an oil chamber with respect to a clutch chamber that houses the friction clutch. When oil stirring conditions are met thereafter, the passage opening is opened and the lubrication oil is allowed to flow into the clutch chamber from the oil chamber.

Подробнее
Номер записи: 13
12-01-2017 дата публикации

Control system and control method for driving device, and recording medium

Номер: US20170008422A1
Автор: Tomokazu HONDA
Принадлежит: Honda Motor Co Ltd

In a control system and control method for a driving device, opposite distribution control is performed (e.g., steps 1, 4 to 7 ), whereby a left driving force and a right driving force are controlled such that a yaw moment in a direction opposite to a turning direction of the vehicle acts on the vehicle, whereby a left-right driving force difference is generated which is a difference between the left driving force and the right driving force. During performance of the opposite distribution control, when deceleration of the vehicle is obtained, limit control is performed (e.g., step 8 ), whereby the left driving force and the right driving force are controlled such that a change in the left-right driving force difference becomes smaller than a change in a left-right driving force sum, which is the sum of the left driving force and the right driving force.

Подробнее
Номер записи: 14
08-01-2015 дата публикации

Single speed and two-speed disconnecting axle arrangements

Номер: US20150011349A1
Автор: James Preston Downs, Paul Joseph Valente
Принадлежит: American Axle and Manufacturing Inc

A disconnectable driveline arrangement for an all-wheel drive vehicle includes a power take-off unit having a disconnect mechanism, a rear drive module having a torque transfer device providing a disconnect function, a speed synchronization function and a torque biasing function, and a control system for controlling actuation of the disconnect mechanism and the torque transfer device. The power take-off unit and the rear drive module can each be equipped with a two-speed range shift unit which, under the control of the control system, permits establishment of high and low speed drive connections.

Подробнее
Номер записи: 15
09-01-2020 дата публикации

FOUR-WHEEL DRIVE VEHICLE CLUTCH CONTROL METHOD AND CLUTCH CONTROL DEVICE

Номер: US20200009962A1
Автор: HIRAHATA Yuusuke, NAKAMURA Keishirou, SAITOU Kouki, TANAKA Koutarou
Принадлежит:

A clutch control method is provided for a four-wheel-drive vehicle in which the main drive wheels are connected to a drive source, and the auxiliary drive wheels are connected via a friction clutch to the drive source. When the vehicle starts off due to an accelerator depressing operation, the friction clutch is engaged to distribute, a drive torque from the drive source to the main drive wheels and the auxiliary drive wheels. In this clutch control method, when the vehicle switches from a traveling state to a stopped state while maintaining in a travel shift position, a control is preformed to apply initial torque as an engagement torque control of the friction clutch while the vehicle is stopped. A magnitude of the initial torque is set to a magnitude that maintains a drive-system torsion state by transmitting torque to an auxiliary-drive-wheel drive system before the vehicle is stopped. 1. A four-wheel-drive vehicle clutch control method for a four-wheel-drive vehicle in which either left and right front wheels or left and right rear wheels are configured as main drive wheels connected to a drive source , and the other of the left and right front wheels and the left and right rear wheels are configured as auxiliary drive wheels connected via a friction clutch to the drive source , and when the vehicle starts off due to an accelerator depressing operation , the friction clutch is engaged , whereby a drive torque from the drive source is distributed to the main drive wheels and the auxiliary drive wheels , the four-wheel-drive vehicle clutch control method comprising:when the vehicle changes over from a traveling state to a stopped state while maintaining in a travel shift position, performing a control to apply initial torque as an engagement torque control of the friction clutch when the vehicle is stopped; andsetting a magnitude of the initial torque to a magnitude that is necessary for maintaining a drive-system torsion state by transmitting torque to an ...

Подробнее
Номер записи: 16
15-01-2015 дата публикации

VEHICLE, AND VEHICLE CONTROL METHOD

Номер: US20150014081A1
Автор: NOGUCHI Masatoshi
Принадлежит: HONDA MOTOR CO., LTD.

Provided are a vehicle such that drive state can be suitably selected in a configuration including an internal combustion engine, and a vehicle control method. In a vehicle and a method of controlling the same, different values are set for a first switching threshold value for switching from a first independent drive state (in which one of a front wheel and a rear wheel is driven) to a combined drive state, and for a second switching threshold value for switching from a second independent drive state (in which the other of the front wheel and the rear wheel is driven by an internal combustion engine) to the combined drive state. 1. A vehicle comprising:a first drive apparatus configured to drive one of a front wheel and a rear wheel;a second drive apparatus configured to drive another one of the front wheel and the rear wheel, the second drive apparatus including an internal combustion engine;a drive mode controller configured to control the first drive apparatus and the second drive apparatus in order to control drive modes of the front wheel and the rear wheel; andan internal combustion engine controller configured to control an operating state of the internal combustion engine;wherein the drive mode controller switches between a first independent drive mode, in which the vehicle is driven only by a drive force from the first drive apparatus, a second independent drive mode, in which the vehicle is driven only by a drive force from the second drive apparatus, and a composite drive mode, in which the vehicle is driven by a drive force from the first drive apparatus and the second drive apparatus;wherein the drive mode controller switches from the first independent drive mode to the composite drive mode, and from the second independent drive mode to the composite drive mode, based on a lateral acceleration-related value in relation to a lateral acceleration acting on the vehicle; andwherein different values are set as a first switching threshold value, which ...

Подробнее
Номер записи: 17
21-01-2016 дата публикации

ALL-WHEEL DRIVE FAILSAFE ACTION AXLE TORQUE CALCULATION METHOD

Номер: US20160016466A1
Автор: Turner Steve
Принадлежит:

A method of controlling an all-wheel drive system of a vehicle includes supplying torque to front and rear wheels of the vehicle, sensing a failure of the all-wheel drive system, and adjusting a crankshaft torque of an engine of the vehicle so that the front wheel torque remains constant regardless of a failure of the all-wheel drive system. 1. A method of controlling an all-wheel drive system of a vehicle , comprising:supplying torque to front and rear wheels of the vehicle;sensing a failure of the all-wheel drive system; andadjusting a crankshaft torque of an engine of the vehicle so that the front wheel torque remains constant regardless of a failure of the all-wheel drive system.2. The method of controlling an all-wheel drive system of a vehicle of claim 1 , wherein the torque supplied to the front wheels subsequent to a failure of the all-wheel drive system is greater than the torque supplied to the rear wheels subsequent to a failure of the all-wheel drive system.3. The method of controlling an all-wheel drive system of a vehicle of claim 2 , further includingadjusting the crankshaft torque so that a value of the torque supplied to the rear wheels subsequent to a failure of the all-wheel drive system is equal to zero.4. The method of controlling an all-wheel drive system of a vehicle of claim 1 , further includingcalculating a value of the torque that is supplied to the front wheels prior to a failure of the all-wheel drive system, anddetermining the adjusted crankshaft torque based upon the calculated front wheel torque.6. The method of controlling an all-wheel drive system of a vehicle of claim 5 , further includingdetermining the transmission gear ratio, the transmission efficiency, and the torque converter gain from a look-up table, wherein the torque converter gain is based upon a rotational speed of a torque converter of the vehicle.7. The method of controlling an all-wheel drive system of a vehicle of claim 5 , wherein the calculated front wheel torque ...

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

VEHICLE DRIVELINE COMPONENT HAVING AN ACTUATION SYSTEM FOR DRIVELINE DISCONNECT

Номер: US20180015824A1
Автор: Calomeni Brian A., Moradshahi Peyman, Zink Frederick E.
Принадлежит:

A vehicle driveline component with an actuator and a rotary coupling. The actuator has an actuator housing, a motor, a transmission, a first cam, a second cam, and a first biasing spring. The motor is coupled to the actuator housing and includes a motor output member. The transmission has a transmission input member, which is driven by the motor output member, and a transmission output member. The first cam is housed in the actuator housing and is coupled to the transmission output member for rotation therewith. The first cam has a first set of cam features that are disposed about a first annular surface. The second cam has a cam body, which is received in the first cam, and a second set of cam features that are disposed about a second annular surface. The second set of cam features abut the first set of cam features. Rotation of the first cam relative to the second cam into a first position orients the first set of cam features onto the second set of cam features so as to position the second cam in an extended position relative to the first cam. Rotation of the first cam relative to the second cam into a second position orients the first set of cam features onto the second set of cam features so as to position the second cam in a retracted position relative to the first cam. The first biasing spring is disposed between the first and second cams and biases the second cam toward the retracted position. The rotary coupling has a first coupling member, a second coupling member and a second biasing spring. The first coupling member is rotatably and axially slidably received in the second cam. The first coupling member is axially movable between a first coupling position, in which the first coupling member is decoupled from the second coupling member, and a second coupling position in which the first coupling member is coupled to the second coupling member to permit the transmission of rotary power through the rotary coupling. The second biasing spring is disposed ...

Подробнее
Номер записи: 19
17-01-2019 дата публикации

OFF-ROAD UTILITY VEHICLE

Номер: US20190016216A1
Автор: Grangroth Doug, Keller Dustin, Sundberg Zachary John
Принадлежит:

An off-road utility vehicle includes a frame, an engine, a continuously variable transmission, a transaxle comprising a rear differential, an intermediate drive assembly comprising an intermediate differential, and a front drive assembly comprising a front differential. The intermediate drive assembly and transaxle are coupled via an intermediate driveshaft and the front drive assembly and the intermediate drive assembly are coupled via a front drive shaft. The front drive shaft and the intermediate drive shaft are counter rotating. 1. An off-road utility vehicle comprising:a frame;an engine;a continuously variable transmission;a transaxle comprising a rear differential;an intermediate drive assembly comprising an intermediate differential; anda front drive assembly comprising a front differential, wherein the intermediate drive assembly and transaxle are coupled via an intermediate driveshaft and the front drive assembly and the intermediate drive assembly are coupled via a front drive shaft, wherein the front drive shaft and the intermediate drive shaft are counter rotating.2. The off-road utility vehicle of claim 1 , further including:rear axles coupled to the rear differential and to rear ground engaging members;intermediate axles coupled to the intermediate differential and to intermediate ground engaging members; andfront axles coupled to the front differential and to front ground engaging members.3. The off-road utility vehicle of claim 2 , wherein the rear ground engaging members claim 2 , intermediate ground engaging members claim 2 , and front ground engaging members are tires.4. The off-road utility vehicle of claim 2 , wherein the intermediate drive assembly is selectively engaged to communicate motive force received from the intermediate driveshaft to the intermediate axles.5. The off-road utility vehicle of claim 4 , wherein the front drive assembly is selectively engaged to communicate motive force received from the front drive shaft to the front ...

Подробнее
Номер записи: 20
15-01-2015 дата публикации

TRACTION CONTROL SYSTEM FOR 4WD/AWD VEHICLES EQUIPPED WITH ONBOARD CAMERA

Номер: US20150019094A1
Автор: Larkin Bradley R., Quehenberger Johannes
Принадлежит:

A method controls a powertrain that directs power from an engine and a transmission to all four wheels or to just front wheels or to just rear wheels. The method includes monitoring information transmitted over a communications network. The method determines whether one or more components of the powertrain are in an active condition or in an inactive condition. The one or more components of the powertrain are in the inactive condition when not connected to the transmission and not connected to the front wheels or the rear wheels. The one or more components of the powertrain are in the active condition when connected to the transmission and connected to the front wheels and the rear wheels. The method switches the one or more components of the powertrain between the inactive condition and the active condition based at least in part on visual data provided by an on-board camera system. 1. A method for controlling a powertrain that directs power from an engine and a transmission to all four wheels or to just front wheels or to just rear wheels , the method comprising:monitoring information transmitted over a communications network;determining whether one or more components of the powertrain are in an active condition or in an inactive condition, wherein said one or more components of the powertrain are in said inactive condition when said one or more components are not connected to the transmission and are not connected to the front wheels or the rear wheels and wherein said one or more components of the powertrain are in said active condition when said one or more components are connected to the transmission and are connected to the front wheels and the rear wheels; andswitching said one or more components of the powertrain between said inactive condition and said active condition based only on said information from said communications network and without intervention from a user.2. The method of wherein said information is selected from a group consisting of ambient ...

Подробнее
Номер записи: 21
16-01-2020 дата публикации

A Power Transmission Assembly for Tandem Axles

Номер: US20200016978A1
Автор: De Lemos José Francivaldo Peira
Принадлежит:

A power transmission assembly for tandem axles of a vehicle, the assembly including an input axle, a first drive axle, a second drive axle, a plurality of engagement/disengagement devices, a locking device, and a differential unit. The differential unit being set for power distribution between the drive axles of the vehicle, from which, in cooperation with the engagement/disengagement devices and the locking device, enables configurations of the drive axles in which the first and the second drive axles are driven, one of the drive axles is driven and the other drive axle is not driven, or all the drive axles are not driven. 1. A power transmission assembly for tandem axles of a vehicle , the assembly comprising:an input axle;a plurality of drive axles, including a first drive axle and a second drive axle;a plurality of engagement/disengagement devices;a locking device; anda differential unit being set for power distribution between the first and second drive axles of the vehicle, from which, in cooperation with the engagement/disengagement devices and the locking device, enables configurations of the drive axles in which the first and the second drive axles are driven, one of the drive axles is driven and the other drive axle is not driven, or all the drive axles are not driven.2. The power transmission assembly for tandem axles of claim 1 , wherein: a housing;', 'a yoke accommodated in the housing;', 'a transmission gear;', 'a connection gear;', 'a plurality of intermediate sun gears;', 'a transfer gear;', 'a parallel axle; and', 'a plurality of planetary gears freely placed in relation to the input axle of said yoke and in contact with the intermediate sun gears which are adjacently placed, respectively, to the transmission gear and the connection gear, wherein:, 'said differential unit comprisessaid transmission gear is freely supported on the input axle and is connected to an external diameter of the transfer gear placed on the parallel axle having a power ...

Подробнее
Номер записи: 22
17-01-2019 дата публикации

Power transfer device for vehicle and control method of power transfer device

Номер: US20190017557A1
Автор: Masayuki Arai, Satoshi Ishida, Shota Murai, Taito GOTO
Принадлежит: Toyota Motor Corp

An electronic control unit executes gradual reduction control when a friction clutch is to be maintained in a fully engaged state such that an input rotary member and an output rotary member rotate integrally. As a result, a motor current supplied to a motor is adjusted to a lower current value. Thus, an average current value of the motor current supplied to the motor when the friction clutch is to be maintained in the fully engaged state is appropriately reduced.

Подробнее
Номер записи: 23
28-01-2016 дата публикации

Four-wheel drive vehicle and method for controlling four-wheel drive vehicle

Номер: US20160023550A1
Автор: Minoru Onitake
Принадлежит: JTEKT Corp

A four-wheel drive vehicle are provided which enable enhancement of responsiveness to switching from a two-wheel drive state to a four-wheel drive state. A four-wheel drive vehicle includes a driving force transmission and cut-off apparatus that enables cut-off of transmission of a driving force from an engine to a propeller shaft, a driving shaft that rotates under a tuning force of the propeller shaft, a pair of hydraulic clutches and each disposed between the driving shaft and a corresponding one of rear wheels, and a control apparatus that controls a hydraulic unit that supplies hydraulic oil to the hydraulic clutches. In shifting the two-wheel drive state to the four-wheel drive state, the control apparatus controls the hydraulic unit such that a higher priority is given to supply of the hydraulic oil to first hydraulic clutch than to supply of the hydraulic oil to second hydraulic clutch.

Подробнее
Номер записи: 24
25-01-2018 дата публикации

ACTUATOR DEVICE HAVING CAM AND FOLLOWER AND CONTROLLER CONFIGURED TO EMPLOY RATE-BASED METHODOLOGY TO IDENTIFY POSITIONING OF FOLLOWER ON CAM AT PREDETERMINED LOCATION

Номер: US20180023674A1
Автор: Gilmore Curt D.
Принадлежит:

An actuator device having a motor driven cam, a follower coupled to an output member and driven by the cam, and a controller for controlling operation of the motor. The cam has a first cam surface, a second cam surface and a lift portion between the first and second cam surfaces. The controller is configured to identify a predetermined point on the lift portion as the follower is moved relative to the cam along the lift portion toward the second cam surface. The controller identifies the predetermined point based on a rate of change in the position of the output member along an output member axis as a function of the rotational position of the cam about a cam axis. The controller controls operation of the motor based on the predetermined point to position the follower on the second cam surface. 1. A method comprising:providing an actuator assembly having a cam and follower assembly and an output member, the cam and follower assembly comprising a cam and a follower, the cam being rotatable about a cam axis and defining a cam profile having a first cam surface, a second cam surface and a lift portion that connects the first and second cam surfaces, the follower being engaged to the cam profile, the cam and follower assembly being drivingly coupled to the output member, wherein the output member is positioned at a first axial position along an output member axis when the follower is disposed on the first cam surface, wherein the output member is positioned at a second axial position along the output member axis when the follower is disposed on the second cam surface, the second axial position being offset from the first axial position along the output member axis; androtating the cam in a first rotational direction to drive the follower relative to the cam along the lift portion toward the second cam surface;determining a rate of change in the position of the output member along the output member axis as a function of a rotational position of the cam about the cam axis ...

Подробнее
Номер записи: 25
23-01-2020 дата публикации

FRONT DIFFERENTIAL WITH WEDGE CLUTCH

Номер: US20200023735A1
Автор: Lee Brian
Принадлежит:

A front differential for use with an all-wheel-drive vehicle includes an input member, and an output member selectively engaged to power rear wheels of the vehicle. The differential also includes first and second axle hubs operably coupled to the input member by a differential mechanism. A wedge clutch is configured to selectively couple the input and output members to route power to the rear wheels. The wedge clutch has an outer race fixed to the input member, an inner race fixed to the output member, and a wedge element radially disposed between the inner and outer races and actuatable to couple the inner and outer races creating a power flow path between the input and output members. 1. A front differential for use with an all-wheel-drive vehicle , the differential comprising:an input member;first and second axle hubs operably coupled to the input member by a differential mechanism;an output member configured to power rear wheels of the vehicle; anda wedge clutch configured to selectively couple the input and output members, the wedge clutch including an outer race fixed to the input member, an inner race fixed to the output member, and a wedge element radially disposed between the inner and outer races and actuatable to couple the inner and outer races creating a power flow path between the input and output members.2. The differential of claim 1 , wherein the wedge element has a contracted position in which the inner and outer races are coupled claim 1 , and an expanded position in which the inner and outer races are decoupled.3. The differential of claim 1 , wherein the differential mechanism is a planetary differential mechanism.4. The differential of claim 3 , wherein the planetary differential mechanism includes:first and second sun gears fixed to the first and second axle hubs, respectively,a first set of planet gears in meshing engagement with the first sun gear,a first planet carrier fixed to the input member and supporting the first planet gears,a second ...

Подробнее
Номер записи: 26
05-02-2015 дата публикации

Integrated Wheel End Shift Fork Compliant Stop

Номер: US20150034445A1
Автор: Clohessy Kip E., RICKERT Richard L., ROE Erik O., SHUYLER Steven W.
Принадлежит: WARN INDUSTRIES, INC.

A wheel end of a vehicle includes a knuckle and a wheel and wheel hub rotatably mounted to the knuckle. A CV-joint is positioned adjacent to the wheel hub. A clutch ring is slidable between engagement with one of the wheel hub and the CV-joint or both. A pneumatic annular actuator is connected to a shift fork that is engaged with the clutch ring for movement of the clutch ring between engaged and dis-engaged. The shift fork includes a base portion and an L-shaped section. The L-shaped section includes a plurality of slots therein to allow the shift fork to deflect and pivot when a misalignment occurs between the teeth of the constant velocity joint half shaft and the clutch ring during assembly of the CV-joint to the wheel hub. The pneumatic actuator includes an elastomeric diaphragm wall that includes a compliant stop extending axially therefrom. 1. A wheel end of a vehicle comprising:a knuckle;a wheel and wheel hub rotatably mounted to the knuckle;a constant velocity joint positioned adjacent the wheel hub;a clutch ring slidable between positions of interlocked engagement with one of said wheel hub and constant velocity joint and both of said wheel hub and constant velocity joint; anda pneumatic annular actuator positioned between said knuckle and said constant velocity joint and mounted to said knuckle, said actuator including an air chamber having an elastomeric diaphragm wall movable upon pressurization and depressurization of said air chamber, said diaphragm wall connected to a shift fork that is engaged with said clutch ring for movement of said clutch ring between said positions as the air chamber is pressurized and depressurized, and an air passage extended into said air chamber and an air line connected to said passage and connected to an air pressure source for directing air into and out of said air chamber, said shift fork including an annular base portion and an L-shaped section extending from the base portion, said L-shaped section having a plurality ...

Подробнее
Номер записи: 27
30-01-2020 дата публикации

BEHAVIOR CONTROL APPARATUS FOR A FOUR-WHEEL DRIVE VEHICLE

Номер: US20200031225A1
Автор: Watanabe Ryochi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A behavior control apparatus for a four-wheel drive vehicle comprising a driving unit, front and rear wheel driving torque transmission paths that transmit driving torques of the driving unit to front and rear wheels, respectively, and control unit. The rear wheel driving torque transmission path includes a speed increasing device for increasing speed of the rear wheels relative to the front wheels and two clutches for the left rear w heel and right rear wheel disposed between the speed, increasing device and the left rear wheel and the right rear wheel, respectively. The control unit engages the clutch on the turning inside when the vehicle is in oversteer state during turning under braking in a situation where the two clutches are disengaged. 1. A behavior control apparatus for a four-wheel drive ye hide comprising a driving unit , a front wheel driving torque transmission path that transmits driving torques of the driving unit to left and right front wheels , a rear wheel driving torque transmission path that transmits driving torques of the driving unit to left and right rear wheels , including a speed increasing device for increasing speed of the rear wheels relative to the front wheels and clutches for the left rear wheel and right rear wheel disposed between the speed increasing device and the left rear wheel and the right rear wheel , respectively , and a braking device that applies braking forces to the front wheels and the rear wheels according to braking operation of a driver , whereinthe behavior control apparatus comprises a control unit configured to control engagement and disengagement of the clutches for the left, rear wheel and right rear wheel, and the control unit is configured to engage the clutch on a turning inside to make a wheel speed of the turning inside rear wheel higher than a vehicle speed at a position of the turning inside rear wheel if a degree of oversteer of the vehicle exceeds a control start reference value during turning under ...

Подробнее
Номер записи: 28
04-02-2021 дата публикации

HYDRAULICALLY ACTUATED TRANSFER CASE

Номер: US20210031621A1
Автор: Hart James M., Moses Robert L., Wilton Daryl A.
Принадлежит:

A drive torque transfer case is provided. The transfer case includes an input shaft, an output shaft, a gear assembly coupled to the input shaft, and a range clutch assembly coupled to the output shaft. The range clutch assembly includes a clutch member and a multi-piston actuator configured to receive a pressurized transmission fluid for selectively axially translating the clutch member to engage a component of the gear assembly for transmitting a drive torque from the input shaft to the output shaft. The multi-piston actuator includes an internal piston having a first annular surface area A and a third annular surface area A and an external piston having a second annular surface area A and a fourth annular surface area A The A and A are in hydraulic communication with a first hydraulic chamber, and A and A are in hydraulic communication with a second hydraulic chamber. 1. A drive torque transfer case for a vehicle having a transmission , comprising:an input shaft extending along a longitudinal axis A;an output shaft co-axially aligned with the input shaft;a gear assembly coupled to the input shaft; anda range clutch assembly coupled to the output shaft,wherein the range clutch assembly includes a clutch member and a multi-piston actuator configured to receive a pressurized transmission fluid from the transmission for selectively axially translating the clutch member to engage a component of the gear assembly for transmitting a drive torque from the input shaft to the output shaft.2. The drive torque transfer case of claim 1 , further comprising a transfer case housing;wherein the gear assembly includes a sun gear rotationally fixed to the input shaft, a ring gear non-rotationally fixed to the transfer case housing, and planetary gear carrier having a plurality of planetary gears meshed between the sun gear and the ring gear;wherein the clutch member is a dog clutch splined to the output shaft and axially translatable in a first axial direction and in an opposite ...

Подробнее
Номер записи: 29
04-02-2021 дата публикации

Control of a limited slip differential based on an engine torque

Номер: US20210031623A1
Автор: Francois-Charles DUMAS, Jean-Philippe Houle
Принадлежит: BOMBARDIER RECREATIONAL PRODUCTS INC

A limited slip differential (LSD) is mounted on a driven axle of a vehicle to drive left and right wheels. To control the LSD, a speed of the vehicle is determined. A value of a preload for application to the LSD is also determined. The value of the preload is based on a predicted engine torque and on the speed of the vehicle. A preload is applied to the LSD when the value of the preload is greater than zero.

Подробнее
Номер записи: 30
04-02-2021 дата публикации

CONTROL OF A LIMITED SLIP DIFFERENTIAL OPTIMIZED FOR SLIPPERY DRIVING CONDITIONS

Номер: US20210033183A1
Автор: DUMAS Francois-Charles, HOULE Jean-Philippe
Принадлежит: Bombardier Recreattional Products Inc

A vehicle has an engine, a limited slip differential (LSD) mounted on an axle driven by the engine, and left and right wheels operably connected to the LSD. At least one parameter indicative of a riding condition of the vehicle is determined. A slippery driving condition is detected based on the at least one parameter. The LSD is selectively locked in response to the detection. The slippery driving condition is detected when a torque requested by a user is above a load line of the engine, upon successive wheel slips occurrences, and/or when a wheel slip is detected while a preload is applied to the LSD. 1. A method of controlling a limited slip differential (LSD) of a vehicle , the vehicle having an engine , the LSD , and left and right driven wheels operably connected to the LSD , the method comprising:determining at least one parameter indicative of a riding condition of the vehicle;based on the at least one parameter, detecting a slippery driving condition; andselectively locking the LSD when the slippery driving condition is detected.2. The method of claim 1 , wherein:determining at least one parameter indicative of a riding condition of the vehicle comprises determining a speed of the vehicle and determining a torque of the engine; anddetecting the slippery driving condition comprises determining that the torque of the engine is above a load line of the engine for the speed of the vehicle.3. The method of claim 1 , wherein determining at least one parameter indicative of a riding condition of the vehicle comprises determining a rotational speed of the left wheel and determining a rotational speed of the right wheel claim 1 , the method further comprising:comparing the rotational speeds of the left and right wheels; anddetecting a wheel slip occurrence if a difference between the rotational speeds of the left and right wheels exceeds a predetermined maximum difference in rotational speeds.4. The method of claim 3 , wherein detecting the slippery driving ...

Подробнее
Номер записи: 31
04-02-2021 дата публикации

Electromechanical actuator

Номер: US20210033184A1
Автор: Bo Lundstrom, Lars Severinsson
Принадлежит: BorgWarner Sweden AB

An electromechanical actuator (100) is provided. The actuator comprises an electrical motor (110) controlling a ball ramp mechanism. The ball ramp mechanism is configured to allow for mutual rotation of a first and second rotational member (120, 30) up to a first torque of the electrical motor (110), and to allow for axial separation of the first and second rotational members (120, 130) at a second torque of the electrical motor (110).

Подробнее
Номер записи: 32
05-02-2015 дата публикации

Method of Controlling a Differential Lock

Номер: US20150039201A1
Автор: Dean Simon
Принадлежит: ARVINMERITOR TECHNOLOGY, LLC

A method of controlling a differential lock. The method may include determining a target point for disengaging the differential lock and disengaging the differential lock when the vehicle reaches the target point. 1. A method of controlling a differential lock of a driveline of a vehicle , comprising:determining a target point for disengaging the differential lock when the vehicle is travelling up an incline that exceeds a threshold incline value; anddisengaging the differential lock when the vehicle reaches the target point.2. The method of wherein determining the target point is based on road attribute data and vehicle location data that is wirelessly transmitted to the vehicle.3. The method of wherein vehicle location data is provided by a global positioning system.4. The method of wherein road attribute data is provided by another vehicle.5. The method of wherein the target point is a crest of the incline.6. The method of wherein the differential lock is disengaged before the target point when a road curve of sufficient magnitude is within a threshold distance from the vehicle.7. The method of wherein the differential lock is disengaged while the vehicle is in motion and before the vehicle reaches the road curve.8. The method of wherein the differential lock is disengaged before the vehicle reaches the target point when a road curve of sufficient magnitude is within a threshold distance from the vehicle and a vehicle speed is greater than a threshold speed value.9. The method of wherein the differential lock is not disengaged when a road curve of sufficient magnitude is not within the threshold distance from the vehicle.10. The method of wherein the differential lock is not disengaged when the vehicle speed is not greater than the threshold speed value.11. The method of wherein vehicle wheels are inhibited from rotating at different speeds when the differential lock is engaged and permitted to rotate at different speeds when the differential lock is disengaged. ...

Подробнее
Номер записи: 33
09-02-2017 дата публикации

Method for managing differential lock in a machine

Номер: US20170036539A1
Автор: Jason D. Bell, Justin L. Steinlage, Nathan S. Pauli
Принадлежит: Caterpillar Inc

A method for managing a differential lock in a machine is provided. The method receives an operator command, by a controller, for engaging the differential lock of the machine from a user input device. The method determines, by the controller, an articulation angle of the machine in response to the operator command. The method determines, by the controller, if the articulation angle exceeds a first threshold angle. The first threshold angle is based on a ground speed of the machine The method selectively prevents, by the controller, engagement of the differential lock, if the articulation angle exceeds the first threshold angle. The method provides a notification, by the controller, of the prevention of the engagement of the differential lock based on the articulation angle exceeding the first threshold angle.

Подробнее
Номер записи: 34
09-02-2017 дата публикации

RIGHT AND LEFT DRIVING FORCE DISTRIBUTION UNIT FOR FOUR-WHEEL DRIVE VEHICLE

Номер: US20170036540A1
Автор: YOSHIMURA TAKAHIRO
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A cylindrical ring gear has first external teeth and a support portion in an axial direction of the cylindrical ring gear. An output shaft extends through the cylindrical ring gear and is supported to rotate concentrically with the cylindrical ring gear. A disconnect mechanism is configured to connect or disconnect an inner periphery of the cylindrical ring gear to an outer periphery of the output shaft based on a moved position of the movable engagement member. An actuator is disposed such that the first external teeth are located between the support portion and the actuator. The actuator is configured to move the movable engagement member between a connection position and a disconnection position. The cylindrical ring gear is coupled to the output shaft so as to be relatively non-rotatable in the connection position. Relative rotation between the cylindrical ring gear and the output shaft is allowed in the disconnection position. 1. A right and left driving force distribution unit for a four-wheel drive vehicle , the four-wheel drive vehicle including a driving source , first drive wheels , and second drive wheels , the right and left driving force distribution unit comprising:(a) a cylindrical ring gear having first external teeth and a support portion in an axial direction of the cylindrical ring gear, the support portion being supported by a case so as to rotate around an axis of the cylindrical ring gear, the cylindrical ring gear being configured such that driving force is transmitted from the driving source in a four-wheel drive mode;(b) an output shaft extending through the cylindrical ring gear and supported to rotate concentrically with the cylindrical ring gear, the output shaft being configured to output driving force to the second drive wheels, the driving force being transmitted to the cylindrical ring gear;(c) a disconnect mechanism that includes a movable engagement member configured to move in the axial direction of the cylindrical ring gear, the ...

Подробнее
Номер записи: 35
11-02-2016 дата публикации

Transmission

Номер: US20160040724A1
Автор: Shuji Nishimoto, Tomoyuki Ebihara
Принадлежит: Kanzaki Kokyukoki Manufacturing Co Ltd

A transmission includes a gear train, a transmission shaft driven by the gear train, a transmission casing incorporating the gear train and the transmission shaft, an axle driven by the gear train, a power take-off (PTO) unit attached to the transmission casing, and a parking brake. The transmission shaft and the axle are extended parallel to each other. The PTO unit includes a PTO input shaft, a PTO shaft, and a PTO drive train transmitting power from the PTO input shaft to the PTO shaft. The PTO input shaft is connected coaxially to the transmission shaft so as to receive power from the transmission shaft. The parking brake is provided on the transmission shaft or the PTO input shaft.

Подробнее
Номер записи: 36
09-02-2017 дата публикации

BALANCING UNIT OF A MOTOR VEHICLE AND METHOD FOR CONTROLLING SAME

Номер: US20170037949A1
Автор: Hoeck Michael, Niessen Harwin
Принадлежит:

To reduce the complexity and the outlay involved in the development and implementation in a vehicle of systems and methods known from the prior art for operating a differential-free, clutch-controlled balancing unit having a first clutch and a second clutch, the invention provides for the first clutch and the second clutch to be controlled independently of the driving conditions, and always using the same variable controlled variable of the same value. 1. A system for actuating a differential-free balancing unit of an at least temporarily drivable axle of a motor vehicle , the balancing unit comprising:an input element;a first output element that is connectable to the input element via a first frictionally locking clutch to transmit drive power to a first driven wheel; anda second output element that is connectable to the input element via a second frictionally locking clutch to transmit drive power to a second driven wheel;wherein a control device is provided and configured to selectively adjust coupling torques transmitted by the first clutch and the second clutch as a function of a driving state by changing a variable manipulated parameter during the operation of the vehicle, wherein the control device is configured to actuate the first clutch and the second clutch with a same value of the variable manipulated parameter independently of the driving state.214.-. (canceled) This application is a national stage of, and claims priority to, Patent Cooperation Treaty Application No. PCT/EP2013/077248, filed on Dec. 18, 2013, which application is hereby incorporated herein by reference in its entirety.Balancing units for a motor vehicle and systems and methods for operating same are known, for example, from EP 2 116 411 A1 or DE 40 39 391 A1. In this context, in each case two separately actuable control valves are used in order to respectively actuate the first or second clutch in a selective fashion with a specific control pressure, in order to influence as a function ...

Подробнее
Номер записи: 37
07-02-2019 дата публикации

FOUR-WHEEL-DRIVE VEHICLE

Номер: US20190039455A1
Автор: Kato Tomoaki, Matsumoto Tsutomu, NOZU Tomohiro, YAMAZAKI Tetsuya
Принадлежит: JTEKT CORPORATION

In a four-wheel-drive vehicle, a hydraulic unit has an electric motor, to which a motor current is supplied from a control device, and a pump that is actuated by rotation of a motor shaft, and a drive force transfer device has a piston that is moved by the pressure of working oil discharged from the pump, and a friction clutch that is switchable between a transfer state and a blocked state, in which transfer of a drive force to rear wheels is allowed and blocked, respectively, in accordance with movement of the piston. The control device detects the presence or absence of an abnormality of a flow passage forming member, which forms a flow passage for working oil, in accordance with at least any of a motor current and the number of revolutions of a motor shaft at the time when the motor shaft is rotated by applying a voltage to the electric motor. 1. A four-wheel-drive vehicle comprising:main drive wheels and auxiliary drive wheels, to which a drive force of a drive source is transferred;a drive force transfer device that is capable of blocking transfer of the drive force to the auxiliary drive wheels;a hydraulic unit that supplies a working fluid to the drive force transfer device; anda control device that controls the hydraulic unit, wherein:the four-wheel-drive vehicle is switchable between a four-wheel-drive state, in which the drive force is transferred to the main drive wheels and the auxiliary drive wheels, and a two-wheel-drive state, in which the drive force is transferred to only the main drive wheels;the hydraulic unit has an electric motor, to which a motor current is supplied from the control device, and a pump that is actuated by rotation of a motor shaft of the electric motor;the drive force transfer device has a piston that is moved by a pressure of a working fluid supplied from the pump to a cylinder, and a clutch that is switchable between a transfer state, in which transfer of the drive force to the auxiliary drive wheels is allowed, and a blocked ...

Подробнее
Номер записи: 38
18-02-2016 дата публикации

MULTI-MODE TANDEM AXLE FUNCTION SELECTION APPARATUS AND METHOD

Номер: US20160046185A1
Автор: Cooper Kenneth E., Morscheck Timothy J., Nellums Richard A., Remboski Donald J., Wesolowski Steven J., Ziech James F.
Принадлежит: Dana Heavy Vehicle Systems Group, LLC

A drive axle system () and a method for adapting a shift schedule of a drive axle system () based on an input is provided. The drive axle system () comprises a first shaft (), a first axle assembly (), a second axle assembly (), a clutching device (), a controller (), and a plurality of sensors (). The plurality of sensors () are in communication with the controller () for sensing at least one of an environmental condition and at least one operating condition the drive axle system (). Based on the information from the plurality of sensors () the controller () selects one of a plurality of shift schedules and places the clutching device () in one of a first position and a second position. 1. A method of shifting a drive axle system for a vehicle from a first operating state to a second operating state , the method comprising the steps of:providing a controller;providing a plurality of sensors in communication with the controller;drivingly engaging a first axle assembly with a first output of the drive axle system;drivingly engaging a second axle assembly with a second output of the drive axle system;drivingly engaging an input of the drive axle system with an output of a power source, the drive axle system including an inter-axle differential, the first output, the second output, and a first clutching device having a first position and a second position, the first clutching device in the first position locking the inter-axle differential, engaging the first output with the input of the drive axle system, and disengaging the second output from the inter-axle differential, the first clutching device in the second position unlocking the inter-axle differential and engaging the first output and the second output with the inter-axle differential;sensing at least one of an environmental condition and at least one operating condition of at least one of the first axle assembly, the second axle assembly, and the power source;communicating information from the plurality of ...

Подробнее
Номер записи: 39
06-02-2020 дата публикации

METHOD FOR COMPENSATING CLUTCH TORQUE IN AN ELECTRONIC LIMITED SLIP DIFFERENTIAL

Номер: US20200040985A1
Автор: Edler Andrew N., Grogg John A.
Принадлежит: Eaton Intelligent Power Limited

A method of determining clutch torque for a limited slip differential gear mechanism on a vehicle includes obtaining an estimated driveline torque. A desired bias torque is established. A necessary clutch torque required to achieve the desired bias torque is determined. The necessary clutch torque is commanded based on the estimated driveline torque to achieve the desired bias torque. 1. A method of determining clutch torque for a limited slip differential gear mechanism on a vehicle , the method comprising:obtaining an estimated driveline torque;establishing a desired bias torque;determining a necessary clutch torque required to achieve the desired bias torque; andcommanding the necessary clutch torque based on the estimated driveline torque to achieve the desired bias torque.2. The method of claim 1 , further comprising:determining whether the vehicle is turning one of left and right;wherein determining the clutch torque is based on the determination of the vehicle turning one of left and right.3. The method of claim 2 , further comprising:calculating clutch torque using a first set of equations based on the vehicle turning left.4. The method of claim 2 , further comprising:calculating clutch torque using a second set of equations, distinct from the first set of equations, based on the vehicle turning right.5. The method of claim 2 , further comprising:determining a left output shaft torque;determining a right output shaft torque; andcalculating the bias torque based on the left and right output shaft torques.6. The method of wherein the limited slip differential gear mechanism includes a bevel gear set comprising pinion gears and side gears claim 1 , wherein the bevel gear set generates a differential gear bias torque and wherein determining the clutch torque needed to achieve the desired bias torque is based on the differential gear bias torque.7. The method of wherein the commanded clutch torque is reduced as the driveline torque is increased.8. A method of ...

Подробнее
Номер записи: 40
16-02-2017 дата публикации

IMPROVEMENTS IN VEHICLE MOUNTED PEDAL BOX ASSEMBLIES

Номер: US20170043662A1
Автор: PERUSIC Daryl
Принадлежит:

A pedal box for a vehicle comprising at least one of a brake assembly, a clutch assembly and a throttle assembly each mounted on an axis supported by a frame and a first mounting plate; a master cylinder operatively connected to each said brake assembly and clutch assembly; characterised in that said pedal box assembly includes at least one articulating mounting member which allows the pedal box assembly to accommodate a variety of vehicle floor geometries. The pedal box may further include a throttle response adjustment assembly for altering response during pedal travel, and a pedal whose attitude is vertically and rotationally adjustable relative to a pedal supporting strut. 1. a pedal box for a vehicle comprising at least one of a brake assembly , clutch assembly and throttle assembly each mounted on an axis supported by a first mounting plate; a master cylinder operatively connected to each said brake assembly and clutch assembly; characterised in that said pedal box assembly , includes at least one articulating mounting member which allows the pedal box assembly to accommodate a variety of vehicle floor geometries.2. A pedal box according to wherein the at least one mounting members comprise plates.3. A pedal box according to wherein the are two co operating mounting plates.4. A pedal box according to wherein one said plate is pivotally attached to a first axle allowing the plate to rotate through an arc of 180 degrees.5. A pedal box according to wherein the second mounting plate is pivotally attached to a second axle thereby allowing rotation of the second plate through a wide arc of at least 270 degrees.6. A pedal box according to wherein the plates are each capable of disposition at an angle which accommodates the angle of floor locations to which the plates are respectively attached.7. A pedal box according to wherein the floor locations include an angled vehicle firewall.8. A pedal box according to wherein a first of said plates locates on a substantially ...

Подробнее
Номер записи: 41
16-02-2017 дата публикации

Power transmitting component with fork actuator

Номер: US20170043663A1
Автор: James P. Downs
Принадлежит: American Axle and Manufacturing Inc

A power transmitting component having a actuator with a lead screw, which is driven by a motor and a transmission, a pusher assembly driven by the lead screw, and a clutch fork. Translation of the pusher coordinates movement of the clutch fork along its axis.

Подробнее
Номер записи: 42
25-02-2021 дата публикации

SYSTEM AND METHOD FOR CHANGING GEAR RANGES OF A FOUR WHEEL DRIVE VEHICLE

Номер: US20210053549A1
Автор: CHEN Weitian, Dai Zhengyu, Jiang Hong
Принадлежит:

Methods and system are described for changing a driveline gear range from a higher gear range to a lower gear range. The driveline may include two electric machines and four clutches in a four wheel drive configuration. The methods and systems permit a driveline to change from a higher gear range to a lower gear range without stopping a vehicle. 1. A method for operating a vehicle , comprising:decreasing output of a first electric machine coupled to a first axle and increasing output of a second electric machine coupled to a second axle in response to a request to disengage a higher gear in the first axle and engage a lower gear in the first axle.2. The method of claim 1 , further comprising opening a first clutch coupled to higher gear in response to the request to disengage the higher gear in the first axle.3. The method of claim 2 , further comprising closing a second clutch coupled to the lower gear in response to the request to disengage the higher gear in the first axle claim 2 , the second clutch included in the first axle.4. The method of claim 3 , where the first axle is a front axle and where the second axle is a rear axle.5. The method of claim 3 , where the first axle is a rear axle and where the second axle is a front axle.6. The method of claim 3 , further comprising adjusting output of the first electric machine to reduce slip of the second clutch after opening the first clutch.7. The method of claim 6 , where adjusting the output of the first electric machine includes increasing torque output of the electric machine when the first clutch and the second clutch are fully open.8. A method for operating a vehicle claim 6 , comprising:decreasing output of a first electric machine coupled to a first axle and increasing output of a second electric machine coupled to a second axle in response to a request to switch a driveline from a higher gear range to a lower gear range; anddecreasing output of the second electric machine and increasing output of a first ...

Подробнее
Номер записи: 43
08-05-2014 дата публикации

Distributed hierarchical control system for a tandem axle drive system

Номер: US20140129100A1
Автор: Ananthakrishnan Surianarayanan, Daniel G. Smedley, Richard A. Nellums, Ronald K. Markyvech, Sajeev C. Krishnan, Sameer A. Joshi, Sidharth Renganathan, Steven J. Wesolowski
Принадлежит: Dana Heavy Vehicle Systems Group LLC

A hierarchical control system for a tandem axle assembly for a vehicle is provided. The hierarchical control system includes a vehicle level controller, an actuator, a shift controller, and a sensor. The shift controller is capable of placing the tandem axle assembly in at least a first operating condition and a second operating condition using the actuator. In response to the sensor and an operating condition of at least one of the power source and the transmission of the vehicle, the shift controller adjusts a manner of placing the tandem axle assembly in at least one of the first operating condition and the second operating condition. The hierarchical control system facilitates performing a shifting procedure in an automatic manner or as desired by an operator of the vehicle without excessively increasing a cost and a complexity of the tandem axle assembly.

Подробнее
Номер записи: 44
03-03-2016 дата публикации

METHOD FOR CONTROLLING A MOTOR VEHICLE OPERATED IN ALL-WHEEL DRIVE AT TIMES

Номер: US20160059696A1
Автор: Quehenberger Johannes
Принадлежит:

A method for controlling a motor vehicle () operated in all-wheel drive at times, by means of a control unit (), wherein the motor vehicle comprises a drive unit (), a primary drive axle () permanently driven by the drive unit (), a secondary drive axle (), a torque transmission train () for transmitting the torque of the drive unit () to the secondary drive axle (), and a disconnect clutch () for coupling the secondary drive axle () to and uncoupling same from the drive unit (), wherein the control unit () can actuate the disconnect clutch () via a first actuating unit (), characterized by the following steps 11516. A method for controlling a motor vehicle operated in all-wheel drive at times , by means of a control unit , wherein the motor vehicle comprises a drive unit , a primary drive axle permanently driven by the drive unit , a secondary drive axle , a torque transmission train for transmitting the torque of the drive unit to the secondary drive axle , and a disconnect clutch for coupling the secondary drive axle to and uncoupling same from the drive unit , wherein the control unit can actuate the disconnect clutch () via a first actuating unit () , the method comprising:determining an all-wheel requirement for the motor vehicle from input signals; andif there is a predetermined all-wheel requirement, preparing an all-wheel operation, wherein the disconnect clutch is not closed.2. The method as claimed in claim 1 , wherein the motor vehicle comprises a second clutch device for presynchronizing the torque transmission train claim 1 , wherein the control unit can actuate the second clutch device via a second actuating unit claim 1 , wherein the preparation of an all-wheel operation takes place via the second actuating unit.3. The method as claimed in claim 1 , wherein the determination of the all-wheel requirement takes place in the form of determining a probability of an all-wheel requirement in at least three categories claim 1 , namely “low claim 1 , “medium ...

Подробнее
Номер записи: 45
04-03-2021 дата публикации

UTILITY VEHICLE

Номер: US20210061096A1
Автор: Matsuda Yoshimoto, Ozawa Shouji
Принадлежит:

A utility vehicle includes: a power unit that outputs drive power; a drive shaft that receives the drive power transmitted from the power unit; a front axle that receives the drive power transmitted from the drive shaft; a right front wheel connected to the front axle; a left front wheel connected to the front axle; a right clutch configured to disable power transmission from the drive shaft to the right front wheel; a left clutch configured to disable power transmission from the drive shaft to the left front wheel; a clutch actuator that actuates the left clutch and the right clutch; and a controller that controls the clutch actuator. 1. A utility vehicle comprising:a power unit that outputs drive power;a drive shaft that receives the drive power transmitted from the power unit;a front axle that receives the drive power transmitted from the drive shaft;a right front wheel connected to the front axle;a left front wheel connected to the front axle;a right clutch configured to disable power transmission from the drive shaft to the right front wheel;a left clutch configured to disable power transmission from the drive shaft to the left front wheel;a clutch actuator that actuates the left clutch and the right clutch; anda controller that controls the clutch actuator.2. The utility vehicle according to claim 1 , further comprising a turning degree detector configured to detect turning degrees of the right front wheel and the left front wheel claim 1 , whereinthe left clutch and the right clutch are clutches configured to continuously vary power transmission rates thereof, andthe controller controls the clutch actuator to cause the power transmission rates of the left clutch and the right clutch to vary as a function of the turning degrees detected by the turning degree detector.3. The utility vehicle according to claim 2 , whereinduring clockwise turning, the controller controls the clutch actuator to cause the power transmission rate of the right clutch to decrease with ...

Подробнее
Номер записи: 46
03-03-2016 дата публикации

Clutch pedal system and master cylinder for a clutch pedal system of a vehicle

Номер: US20160061276A1
Автор: Christina Kallas, Steffen Schoenfuss
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

The clutch pedal system for a vehicle, such as a motor vehicle, is disclosed. The clutch pedal system includes a pedal carrier having a fastening region configured to be associated with an aperture in a bulkhead and/or a dashboard carrier of the vehicle. A clutch pedal is pivotably mounted on the pedal carrier. A master cylinder is supported on an adapter region of the pedal carrier and is connected to the clutch pedal. The master cylinder is positioned such that at least a portion of the master cylinder extends through the aperture, wherein the pedal carrier is configured to position the master cylinder in a predetermined position relative to the bulkhead and/or of the dashboard carrier.

Подробнее
Номер записи: 47
05-03-2015 дата публикации

VEHICLE POWER SWITCHING DEVICE

Номер: US20150065284A1
Автор: CHANG Chi-han, Ho Chao-Chang
Принадлежит:

A power switching device includes a power transmission unit and a driving unit. The transmission unit includes a differential, an axle aligned with the differential, and a coupler sleeved movably on one of the differential and the axle. The driving unit includes a controller, a first transmission mechanism driven by the controller, and a second transmission mechanism driven by the first transmission mechanism. The controller is a solenoid or an electric actuator, and is operable to activate the second transmission mechanism. The coupler can be moved by the second transmission mechanism to interconnect the differential and the axle, so as to allow for co-rotation of the axle with the differential. 110-. (canceled)11. A vehicle power switching device comprising:a power transmission unit including a differential, an axle aligned with said differential, and a coupler sleeved movably on one of said differential and said axle; anda driving unit including a controller, a first transmission mechanism driven by said controller, and a second transmission mechanism driven by said first transmission mechanism, said controller being one of a solenoid and an electric actuator and being operable to activate said first and second transmission mechanisms to thereby move said coupler to interconnect said differential and said axle, so as to allow for co-rotation of said axle with said differential;wherein said first transmission mechanism includes a push rod driven by said controller to activate said second transmission mechanism, and a first returning member for biasing said push rod to return to an original position, and said second transmission mechanism includes a coupler pushing member connected to and co-movable with said coupler, a connecting rod driven by said push rod to move said coupler pushing member, a second returning member sleeved on said connecting rod for biasing said connecting rod to an original position, and a prepressing resilient member sleeved on said ...

Подробнее
Номер записи: 48
28-02-2019 дата публикации

DRIVING FORCE CONTROL APPARATUS AND METHOD FOR CONTROLLING VEHICLE

Номер: US20190061523A1
Автор: NAGAYAMA Go, ODA Ichiro, SARAI Kotaro, YAMAZAKI Tetsuya
Принадлежит: JTEKT CORPORATION

A driving force control apparatus includes a first torque calculator configured to calculate turning radius correspondence torques indicating the magnitudes of the driving forces to be transmitted to a right rear wheel and a left rear wheel based on a turning radius, a second torque calculator configured to calculate steering velocity response torques based on a steering velocity of a steering wheel and a vehicle speed, a corrector configured to calculate a corrected torque by correcting a turning radius correspondence torque of at least one of wheels on an inner side of turning and on an outer side of turning in accordance with the steering velocity response torque, and a current controller configured to supply currents to torque couplings so that driving forces based on the corrected torque are transmitted. 1. A driving force control apparatus to be mounted on a vehicle including a driving force transmission apparatus including a driving force adjustment mechanism configured to adjust driving forces to be transmitted to a right wheel and a left wheel , the driving force control apparatus being configured to control the driving force transmission apparatus , the driving force control apparatus comprising:a first torque calculator configured to calculate turning radius correspondence torques indicating magnitudes of the driving forces to be transmitted to the right wheel and the left wheel based on at least a vehicle turning radius;a second torque calculator configured to calculate a steering velocity response torque based on a steering velocity of a steering wheel and a vehicle speed;a corrector configured to calculate a corrected torque by correcting a turning radius correspondence torque of a wheel on an inner side of turning out of the turning radius correspondence torques of the right wheel and the left wheel that are calculated by the first torque calculator so that the turning radius correspondence torque of the wheel on the inner side of turning decreases in ...

Подробнее
Номер записи: 49
28-02-2019 дата публикации

FOUR-WHEEL-DRIVE VEHICLE AND METHOD OF CONTROLLING FOUR-WHEEL-DRIVE VEHICLE

Номер: US20190061524A1
Автор: NOZU Tomohiro
Принадлежит: JTEKT CORPORATION

A four-wheel-drive vehicle includes: a pump that is actuated by an electric motor; a friction clutch that has a plurality of clutch plates that are pressed by a piston that is movable by working oil discharged from the pump; a control device that controls the electric motor; front wheels, to which a drive force of an engine is always transferred; and rear wheels, to which the drive force of the engine is transferred in accordance with the fastening force of the friction clutch. When it is determined that the vehicle is in a high fastening force-requiring state in which it is necessary for the friction clutch to transfer a large drive force temporarily, the control device causes the electric motor to output torque that is larger than torque that the electric motor can continuously output. 1. A four-wheel-drive vehicle comprising:an electric motor;a pump that is actuated by torque output from the electric motor;a piston that is movable by a pressure of a working fluid discharged from the pump;a friction clutch that has a plurality of clutch plates that are pressed by the piston;a control device that controls the electric motor;a drive source that generates a drive force in accordance with an accelerator operation amount;main drive wheels to which the drive force of the drive source is always transferred; andauxiliary drive wheels to which the drive force of the drive source is transferred in accordance with a fastening force of the friction clutch, whereinthe control device causes the electric motor to output torque that is larger than torque that the electric motor can continuously output when it is determined, on the basis of vehicle information including respective wheel speeds of the main drive wheels and the auxiliary drive wheels and the accelerator operation amount, that the vehicle is in a high fastening force-requiring state in which it is necessary for the friction clutch to transfer a large drive force temporarily.2. The four-wheel-drive vehicle according ...

Подробнее
Номер записи: 50
27-02-2020 дата публикации

ELECTRIC MOTOR TRANSAXLE WITH SIDE-TO-SIDE TORQUE CONTROL

Номер: US20200062114A1
Автор: Holmes Alan G., LITTLEFIELD Joseph R.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An electric motor transaxle having a transaxle housing for a vehicle drive axle includes first and second axle-shafts that are configured to rotate about a common first axis. The transaxle includes a first planetary gear-set operatively connected to the first axle-shaft, configured to rotate about the first axis, and having first, second, third, and fourth members. The transaxle additionally includes a second planetary gear-set operatively connected to the second axle-shaft, configured to rotate about the first axis, and having first, second, third, and fourth members. The transaxle further includes an electric motor arranged on the first axis and configured to provide a direct electric motor torque input to each of the first and second planetary gear-sets. A vehicle drive axle for mounting in a motor vehicle and employing such an electric motor transaxle is also disclosed. 1. An electric motor transaxle having a transaxle housing for a vehicle drive axle having first and second axle-shafts that are configured to rotate about a common first axis , the electric motor transaxle comprising:a first planetary gear-set operatively connected to the first axle-shaft, configured to rotate about the first axis, and having first, second, third, and fourth members;a second planetary gear-set operatively connected to the second axle-shaft, configured to rotate about the first axis, and having first, second, third, and fourth members; andan electric motor arranged on the first axis and configured to provide a direct electric motor torque input to each of the first and second planetary gear-sets.2. The electric motor transaxle according to claim 1 , wherein the electric motor includes a stator fixed to the transaxle housing and a rotor operatively connected to each of the first and second planetary gear-sets claim 1 , and wherein each of the fourth member of the first planetary gear-set and the fourth member of the second planetary gear-set is directly connected to the rotor of ...

Подробнее
Номер записи: 51
27-02-2020 дата публикации

Vehicle Driveline Having A Vehicle Driveline Component With A Dual Disconnecting Differential

Номер: US20200063845A1
Автор: BALENDA, II Joseph S.
Принадлежит:

A vehicle driveline component having a differential input, which is rotatable about a differential axis, a differential gearset that is driven by the differential input, first and second differential outputs, which are rotatable about the differential axis, a first disconnect clutch and a second disconnect clutch. The differential gearset has a first gearset output and a second gearset output that are rotatable about the differential axis. The first disconnect clutch selectively couples the first differential output to the first gearset output, while the second disconnect clutch selectively couples the second differential output to the second gearset output. 1. A vehicle driveline comprising:a differential input that is rotatable about a differential axis;a differential gearset driven by the differential input, the differential gearset having a first gearset output and a second gearset output that are rotatable about the differential axis;first and second differential outputs that are rotatable about the differential axis;a first disconnect clutch that selectively couples the first differential output to the first gearset output; anda second disconnect clutch that selectively couples the second differential output to the second gearset output.2. The vehicle driveline of claim 1 , wherein the differential input is a differential case.3. The vehicle driveline of claim 2 , wherein the first and second differential outputs are side gears that are received in the differential case.4. The vehicle driveline of claim 3 , wherein the differential gearset further comprises a plurality of differential pinions claim 3 , each of the differential pinions being rotatable relative to the differential case and meshingly engaged to at least one of the first and second gearset outputs.5. The vehicle driveline of claim 4 , wherein the differential gearset is a straight bevel gearset.6. The vehicle driveline of claim 1 , wherein the first disconnect clutch is a first dog clutch.7. The ...

Подробнее
Номер записи: 52
27-02-2020 дата публикации

Power transfer assembly with planetary gearset having carrier with crack arresting features

Номер: US20200063856A1
Автор: Michael Bujold, Ralph Larson
Принадлежит: Magna Powertrain of America Inc

A two-speed transfer case for a four-wheel drive vehicle is provided. The transfer case has a two-speed planetary gearset, a range clutch, and a range shift mechanism. The planetary gearset includes a carrier unit having at least one crack arresting feature configured to limit propagation of a stress crack. The carrier unit includes a plurality of mounting holes for securing planet gears for rotation relative to the carrier unit. The gearset includes a sun gear configured for and a ring gear, with the planet gears in meshed engagement with the sun gear and the ring gear. The crack arresting feature extends at least partially through a portion of the carrier unit and is configured to receive a crack propagating from a central aperture of the carrier unit. The crack arresting feature is disposed radially between the central aperture and the mounting holes.

Подробнее
Номер записи: 53
12-03-2015 дата публикации

Control apparatus and vehicle having the same

Номер: US20150073641A1
Автор: Hiroyuki Takayanagi, Toshiya Hashimoto
Принадлежит: Denso Corp, Toyota Motor Corp

In a control apparatus for controlling front-wheel and rear-wheel rotating electrical machines capable of driving front and rear wheels of a vehicle on electrical power of a battery, a command torque determinator determines command torques for the rotating electrical machines based on a predetermined torque distribution ratio, a power distribution ratio calculator calculates a power distribution ratio based on the torque distribution ratio, an outputtable torque calculator calculates outputtable torques of the rotating electrical machines, a power distribution ratio corrector corrects the power distribution ratio based on the outputtable torques, and a power distributor distributes the electrical power of the battery between the rotating electrical machines in the corrected power distribution ratio.

Подробнее
Номер записи: 54
07-03-2019 дата публикации

CONTROL SYSTEM AND METHOD OF CONTROLLING A DRIVELINE

Номер: US20190070956A1
Автор: BURT Sam, CLARKE RICHARD, HARRIES Christopher
Принадлежит:

Some embodiments of the present invention provide a control system configured to control a driveline of a motor vehicle to operate in a selected one of a plurality of configurations, the system being configured to receive a signal indicative of a location of the vehicle, the system being configured to cause the driveline to operate in a configuration selected in dependence at least in part on the signal indicative of the location of the vehicle. 1. A control system configured to control a driveline of a motor vehicle to operate in a first configuration in which the driveline is configured such that a first group of one or more wheels and in addition a second group of one or more wheels are arranged to be driven or a second configuration in which the first group of one or more wheels and not the second group are arranged to be driven , the control system comprising:receiver means operable to receive a location signal indicative of a location of the vehicle,means to determine a predicted path of travel of the vehicle using the location signal,means to predict an amount of lateral acceleration that will be experienced by the vehicle in dependence at least in part on the predicted path of travel of the vehicle,a comparator operable to compare the predicted amount of lateral acceleration with a threshold lateral acceleration value anda controller operable to cause the driveline to operate in either the first or the second configuration in dependence at least in part on whether the predicted amount of lateral acceleration exceeds the threshold lateral acceleration valuewherein the first or the second group of one or more wheels comprises a plurality of wheels, the system being configured to set a predetermined amount of locking torque between at least a pair of wheels of the plurality of wheels of the first group and/or at least a pair of wheels of the plurality of wheels of the second group in dependence at least in part on the predicted amount of lateral acceleration.2. ...

Подробнее
Номер записи: 55
07-03-2019 дата публикации

DRIVING FORCE ADJUSTMENT APPARATUS

Номер: US20190072167A1
Автор: YAMAMURA Takuya
Принадлежит: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA

A driving force adjustment apparatus comprises: a driving source that drives a left shaft and a right shaft of a vehicle; a motor that regulates driving forces that are to be distributed to the left shaft and the right shaft; a left side gear train that adjusts a reduction ratio of the left shaft; a right side gear train that adjusts a reduction ratio of the right shaft; and a planetary gear mechanism that comprises four elements and has two degrees of freedom, the four elements being connected each to one of the driving source, the motor, the left side gear train, and the right side gear train. This configuration integrates the differential mechanism for the left and right wheels and the mechanism for adjusting the driving forces of the left and right wheels, aiming at enhancement in mountability and weight reduction. 1. A driving force adjustment apparatus comprising:a driving source that drives a left shaft and a right shaft of a vehicle;a motor that regulates driving forces that are to be distributed to the left shaft and the right shaft;a left side gear train that adjusts a reduction ratio of the left shaft;a right side gear train that adjusts a reduction ratio of the right shaft; anda planetary gear mechanism that comprises four elements and has two degrees of freedom, the four elements being connected each to one of the driving source, the motor, the left side gear train, and the right side gear train.2. The driving force adjustment apparatus according to claim 1 , characterized in that:the motor provides each of adjusting driving forces to one of the left shaft and the right shaft, the adjusting driving forces having a same absolute value and opposite signs; andthe planetary gear mechanism, the left side gear train, and the right side gear train have structures that make a rotational speed of the motor zero when a rotational speed of the left shaft coincides with a rotational speed of the right shaft, and have reduction ratios that distribute a driving force ...

Подробнее
Номер записи: 56
05-03-2020 дата публикации

CONTROL SYSTEM FOR ALL-WHEEL DRIVE VEHICLE

Номер: US20200070655A1
Автор: Nagaoka Takahiro, Narita Yasumasa, Yaguchi Yuu
Принадлежит:

A vehicle includes a first axle temporary driven by a motor, a second axle permanently connected to the motor via a propeller shaft, and a sub-shaft that connects the propeller shaft and the first axle. A control system for a connection between the motor and the first axle includes a first clutch between the propeller shaft and the sub-shaft, a second clutch between the sub-shaft and the first axle. The first clutch is controlled to continue applying a synchronous torque until the second clutch is determined to be connected. The second clutch is controlled to be connected in response to a determination that the second clutch is connectable. 1. A control system configured to control a connection between a motor and a first axle in an all-wheel drive vehicle that includes the first axle temporary driven by the motor , a second axle permanently connected to the motor via a propeller shaft , and a sub-shaft that drivingly connects the propeller shaft and the first axle , the control system comprising:a first clutch configured to disconnectably connect the propeller shaft and the sub-shaft;a second clutch configured to disconnectably connect the sub-shaft and the first axle;a synchrony determination unit configured to determine whether the second clutch is connectable;a connection determination unit configured to determine whether the second clutch is connected;a first control unit configured to control the first clutch to continue applying a synchronous torque from the propeller shaft to the sub-shaft until the connection determination unit determines that the second clutch is connected; anda second control unit configured to control to connect the second clutch in response to a determination of the synchro determination unit that the second clutch is connectable.2. The control system according to claim 1 , wherein the first clutch is a friction clutch and the second clutch is a non-slip clutch.3. The control system according to claim 1 , further comprising:a sensor ...

Подробнее
Номер записи: 57
14-03-2019 дата публикации

Driving force transmission control apparatus

Номер: US20190077257A1
Автор: Hirokazu Kondo
Принадлежит: JTEKT Corp

A control apparatus configured to control a driving force transmission apparatus. The control apparatus includes a torque command value calculator configured to calculate a torque command value for the right and left rear wheels based on a front-rear wheel rotation speed difference, a command value limiter configured to limit the torque command value to a value equal to or smaller than an upper limit value, and a current controller configured to control a current to be supplied to the driving force transmission apparatus so that a driving force determined based on the torque command value is transmitted to the right and left rear wheels. When the front-rear wheel rotation speed difference increases, the command value limiter sets the upper limit value smaller as a change amount of the front-rear wheel rotation speed difference per unit time increases.

Подробнее
Номер записи: 58
22-03-2018 дата публикации

FOUR-WHEEL-DRIVE VEHICLE CONTROL DEVICE

Номер: US20180079301A1
Автор: KAKITA Akiyoshi, Kato Tomoaki, Kondo Hirokazu, SARAI Kotaro
Принадлежит: JTEKT CORPORATION

A control device is mounted on a four-wheel-drive vehicle, and includes a detector and a vibration suppression controller. The detector detects the occurrence of a vibrating state, in which drive wheels and auxiliary drive wheels slip alternately in a four-wheel-drive state in which a drive force is transferred to the auxiliary drive wheels, or the occurrence of a preliminary state for the vibrating state. The vibration suppression controller reduces the drive force which is transferred to the auxiliary drive wheels via a drive force transfer device when the vibrating state or the preliminary state is detected by the detector. The vibration suppression controller reduces the drive force which is transferred to the auxiliary drive wheels on condition that a thermal load of the drive force transfer device is less than a predetermined threshold. 1. A four-wheel-drive vehicle control device mounted on a four-wheel-drive vehicle that has main drive wheels , to which a drive force of a drive source of the vehicle is always transferred , and auxiliary drive wheels , to which a drive force of the drive source is transferred via a drive force transfer device so as to be adjustable in accordance with a travel state of the vehicle , the four-wheel-drive vehicle control device controlling the drive force transfer device and comprising:a detector that detects occurrence of a vibrating state, in which the main drive wheels and the auxiliary drive wheels slip alternately in a four-wheel-drive state in which a drive force is transferred to the auxiliary drive wheels, or occurrence of a preliminary state, in which the vibrating state may occur; anda vibration suppression controller that reduces the drive force which is transferred to the auxiliary drive wheels via the drive force transfer device when the vibrating state or the preliminary state is detected by the detector, whereinthe vibration suppression controller is configured to reduce the drive force which is transferred to the ...

Подробнее
Номер записи: 59
31-03-2022 дата публикации

Shifting mechanism for a vehicle power transfer unit

Номер: US20220097519A1
Автор: Brent Peura, Kazunobu Takeshita, Lei Yang
Принадлежит: GKN Automotive Ltd

A vehicle power transfer unit assembly comprises an input shaft, an intermediate shaft at least partially surrounding the input shaft, a central shaft adjacent the input shaft, a peripheral shaft at least partially surrounding the central shaft, a first shift collar, and a second shift collar. The first shift collar is operable between a first position where torque is transferred from the input shaft to the intermediate shaft and a second position where torque is not transferred from the input shaft to the intermediate shaft. The second shift collar is operable between a third position where torque is transferred from the input shaft to the peripheral shaft and a fourth position where torque is transferred from the input shaft to the central shaft.

Подробнее
Номер записи: 60
29-03-2018 дата публикации

Control Device for Four-Wheel-Drive Vehicle and Control Method for Four-Wheel-Drive Vehicle

Номер: US20180086202A1
Автор: Masayuki Arai
Принадлежит: Toyota Motor Corp

An electronic control unit switches a driving mode to a high-gear two-wheel driving mode when a first condition and a second condition are satisfied at the time of driving in a high-gear four-wheel driving mode, and switches the driving mode from the high-gear two-wheel driving mode to the low-gear driving mode when a third condition is satisfied in a state in which the first and second conditions are satisfied. Accordingly, it is possible to shorten a time required for switching to the low-gear driving mode after all of the first to third conditions are satisfied.

Подробнее
Номер записи: 61
05-05-2022 дата публикации

HYBRID AGRICULTURAL VEHICLE

Номер: US20220134860A1
Автор: DANNERBAUER Harald, Zöttl Michael
Принадлежит: CNH INDUSTRIAL AMERICA LLC

A hybrid agricultural vehicle supplies electric power to a first electric motor, a second electric motor, and a third electric motor. The first electric motor provides torque to a first driveline that is designed to transfer received torque to driving wheels of the hybrid agricultural vehicle. The second electric motor provides torque to a second driveline that is designed to transfer received torque to a power take-off shaft of the hybrid agricultural vehicle. The third electric motor provides torque to a power distribution unit that is designed to provide the received torque to one or both of the first and second drivelines to provide extra torque to one or both of the driving wheels and the power take-off shaft.

Подробнее
Номер записи: 62
05-05-2022 дата публикации

Torque transmission device for a motor vehicle

Номер: US20220136569A1
Автор: Hervé MAUREL
Принадлежит: Valeo Embrayages SAS

A torque transmission device for a motor vehicle includes at least one motor, a first output shaft rotationally coupled to an output element of a first clutch and to an output element of a second clutch, the first output shaft to drive a first wheel of the vehicle, a second output shaft rotationally coupled to an output element of a third clutch and to an output element of a fourth clutch, the second output shaft to drive a second wheel of the vehicle, opposite the first wheel, a torque transfer mechanism to transmit the torque from the motor to an input element of the first clutch and to an input element of the fourth clutch with a first gear ratio, and to transmit the torque from the motor to an input element of the second clutch and to an input element of the third clutch with a second gear ratio.

Подробнее
Номер записи: 63
19-03-2020 дата публикации

CONTROL SYSTEM OF FOUR-WHEEL DRIVE VEHICLE AND CONTROL METHOD OF FOUR-WHEEL DRIVE VEHICLE

Номер: US20200086741A1
Автор: NAKAGAWARA Akiko, SADAKIYO Masayuki, SHIMIZU Takuro
Принадлежит: Honda Motor Co.,Ltd.

A weight ratio of each driving wheel of the vehicle at the time of automatic driving is calculated, a front and rear distribution ratio of a driving force of the vehicle is calculated from the weight ratio, a rear wheel plan driving force is calculated from the front and rear distribution ratio and an action plan required driving force, and a temperature of a rear wheel motor is estimated. Then, when the estimated attainment temperature of the rear wheel motor is higher than the upper limit value of the temperature, the front and rear distribution ratio is changed within a range in which excessive slip does not occur at the front wheels, the rear wheel plan driving force is recalculated, and the automatic driving of the vehicle is implemented taking the rear wheel plan driving force as a target driving force. 1. A control system of a four-wheel drive vehicle which is capable of driving automatically and in which a driving source of rear wheels is a motor , comprising:a weight ratio calculation portion, which calculates a weight ratio of each driving wheel at the time of automatic driving;a front and rear distribution ratio calculation portion, which calculates a front and rear distribution ratio of a driving force of the vehicle from the weight ratio calculated by the weight ratio calculation portion;a rear wheel plan driving force calculation portion, which calculates a rear wheel plan driving force based on the front and rear distribution ratio obtained by the front and rear distribution ratio calculation portion and an action plan;a motor attainment temperature estimation portion, which estimates an attainment temperature of a rear wheel motor at the time of automatically driving with the rear wheel plan driving force obtained by the rear wheel plan driving force calculation portion;a motor temperature determination portion, which determines whether the attainment temperature of the rear wheel motor estimated by the motor attainment temperature estimation portion ...

Подробнее
Номер записи: 64
09-04-2015 дата публикации

Control system for four-wheel-drive vehicle

Номер: US20150096814A1
Автор: Yoshinori Maeda
Принадлежит: Toyota Motor Corp

A control system includes a transfer. The transfer is disposed in a power transmission path between the driving power source and primary driving wheels and distributes dynamic power of the driving power source to the secondary drive wheels. A driving power transmission shaft transmits the dynamic power of the driving power source distributed by the transfer to the secondary drive wheels. A clutch mechanism is disposed in a power transmission path between the transfer and the driving power transmission shaft. A electronic control unit engages at least one of a first and second clutches and then engages the clutch mechanism on the basis of a steering state at the time of switching from a two-wheel-drive traveling state in which the clutch mechanism and the first and second clutches are disengaged to a four-wheel-drive traveling state in which the clutch mechanism and the first and second clutches are engaged.

Подробнее
Номер записи: 65
09-04-2015 дата публикации

CONTROL DEVICE AND CONTROL METHOD FOR FOUR-WHEEL DRIVE VEHICLE

Номер: US20150096821A1
Автор: ARAI Masayuki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A four-wheel drive vehicle includes an engine, a transmission provided on a power transmission path between a main drive wheel and a subsidiary drive wheel, and a connection-disconnection mechanism provided on a power transmission path between the transmission and the subsidiary drive wheel to selectively connect and disconnect the power transmission path. A control device for the four-wheel drive vehicle includes an electronic control unit. The electronic control unit is configured to control a transmission torque of the transmission to be less than or equal to a predetermined value when a predetermined condition is satisfied during traveling, and to control the connection-disconnection mechanism so as to at least partially overlap a time during which the transmission torque of the transmission is controlled to be less than or equal to the predetermined value and a time during which the power transmission path is disconnected by the connection-disconnection mechanism. 1. A control device for a four-wheel drive vehicle , the four-wheel drive vehicle including an engine , a transmission provided on a power transmission path between a main drive wheel and a subsidiary drive wheel , and a connection-disconnection mechanism provided on a power transmission path between the transmission and the subsidiary drive wheel to selectively connect and disconnect the power transmission path between the transmission and the subsidiary drive wheel , the control device comprising:an electronic control unit configured to(a) control a transmission torque of the transmission to be less than or equal to a predetermined value when a predetermined condition is satisfied during traveling, and(b) control the connection-disconnection mechanism so as to at least partially overlap a time during which the transmission torque of the transmission is controlled to be less than or equal to the predetermined value and a time during which the power transmission path is disconnected by the connection- ...

Подробнее
Номер записи: 66
09-04-2015 дата публикации

DIFFERENTIAL GEAR PROVIDED WITH DIFFERENTIAL LOCK MECHANISM

Номер: US20150096822A1
Автор: Hayakawa Koshi, Sato Koji
Принадлежит: HONDA MOTOR CO., LTD.

A differential mechanism regulating device which is mechanically connected to two manipulators is miniaturized. When a first cable and a second cable are pulled, a collecting member moves its position. As a result of this movement, the collecting member tilts a portion of an arm by way of a rod. As a result, a differential lock is released. The operation of the first cable and the operation of the second cable can be merged by the collecting member, and it is sufficient to connect only a collecting transmission member to the arm. The connection between the arm and the collecting transmission member can be simplified thus realizing the miniaturization of the differential mechanism. 1. A differential gear , comprising:a differential mechanism which transmits a drive force inputted from a power unit to left and right drive shafts and which generates a difference in rotational speed between left and right wheels connected to the left and right drive shafts;a differential lock mechanism attached to said differential mechanism and configured to lock said differential mechanism into a non-differential state;a switching means attached to said differential lock mechanism, said switching means configured to switch a state of said differential lock mechanism between an operation state and a release state;a first cable connected at a first end of said first cable to a first manipulator, the first manipulator being configured to actuate said switching means via said first cable;a second cable connected at a first end of said second cable to a second manipulator, the second manipulator being configured to actuate said switching means via said second cable;a collecting member provided between said first and second cables and said switching means, a second end of said first cable and a second end of said second cable being connected to said collecting member, said collecting member being configured to transmit an operational force from the first manipulator and the second ...

Подробнее
Номер записи: 67
05-04-2018 дата публикации

CONTROL DEVICE FOR DRIVING FORCE TRANSMISSION DEVICE

Номер: US20180093566A1
Автор: KAKITA Akiyoshi, Kato Tomoaki, Kondo Hirokazu, NAGAYAMA Go, SARAI Kotaro
Принадлежит: JTEKT CORPORATION

A control device mounted on a four-wheel drive vehicle includes: a slip ratio calculating unit that obtains a slip ratio of main driving wheels based at least on wheel speeds; a smoothing unit that smooths the slip ratio by filtering; and a driving force control unit that controls a driving force transmission device so that a driving force that is transmitted to auxiliary driving wheels increases as the slip ratio smoothed by the smoothing unit increases. The smoothing unit uses a larger time constant for the filtering when a vehicle speed is less than a predetermined value than when the vehicle speed is equal to or higher than the predetermined value 1. A control device for a driving force transmission device which is mounted on a four-wheel drive vehicle having a main driving wheel to which a driving force of a driving source is constantly transmitted and an auxiliary driving wheel to which the driving force of the driving source is adjustably transmitted according to a traveling state of the vehicle via the driving force transmission device , and which controls the driving force transmission device , comprising:a slip ratio calculating unit that obtains a slip ratio of the main driving wheel based at least on a wheel speed of the main driving wheel;a smoothing unit that performs filtering to smooth the slip ratio obtained by the slip ratio calculating unit; anda driving force control unit that controls the driving force transmission device so that the driving force that is transmitted to the auxiliary driving wheel increases as the slip ratio smoothed by the smoothing unit increases, whereinthe smoothing unit uses a larger time constant for the filtering when a vehicle speed is less than a predetermined value than when the vehicle speed is equal to or higher than the predetermined value.2. The control device for the driving force transmission device according to claim 1 , whereinthe smoothing unit performs the filtering by using different time constants depending ...

Подробнее
Номер записи: 68
12-05-2022 дата публикации

SCALABLE TRACTIVE-POWER SYSTEM, INTEGRATED WITH ALL-WHEEL ELECTRIC STEERING AND ELECTRIC BRAKING SYSTEMS, DEVELOPING 90% TO 99% TRACTION AND DYNAMIC EFFICIENCY, FOR LIGHT & HEAVY-DUTY ELECTRIC-VEHICLES.

Номер: US20220144058A1
Автор: BEN-ARI Jacob
Принадлежит:

A scalable tractive power system for vehicles (car, truck, bus, semi-trailer), integrated with all-wheel steering system which leverage synergies between plurality of differently designed electric traction-motors and all-wheel electric steering-motors is configured with plurality of sensors to virtually eliminate wheel-dragging and EPS, as part of virtually 100% dynamic efficiency. A fully automated electronic clutch-system attached to selected electric traction motors is configured to carry out above 90% traction efficiency by coupling to wheels selected electric traction-motors in their high efficiency range of operation, and de-coupling and replacing electric traction-motors with another electric traction-motors while the vehicle is changing speed or when the vehicle requires higher or lower tractive-power, from forward-motion start to top-rated speed of the vehicle. A holistic controller is configured with multi-objective optimization design (MOOD) procedures computing complex variable values and parameters, finding the required trade-off among design objectives, and improving the pertinence of solutions, while complying with NHTSA's ‘fail operational systems’ for steer-by-wire. 1. An electric scalable tractive power system for a vehicle , comprising:a plurality of electric traction-motors, configured in groups of electric traction-motors,', 'coupled to wheels of the vehicle, and', 'designed with different power ratings and different high-efficiency ranges of operation;, 'wherein the plurality of electric traction-motors isfurther wherein each group of the groups is designed to overlap each other's high efficiency range of operation while the vehicle is changing speeds in order to create a continuous high efficiency range of tractive-power from a forward-motion start of the vehicle to a top-rated speed of the vehicle, an electronic controlled clutch configured to couple and de-couple each of the plurality of the electric traction-motors, within the each group of ...

Подробнее
Номер записи: 69
28-03-2019 дата публикации

VEHICLE DRIVING-FORCE DISTRIBUTING DEVICE

Номер: US20190092166A1
Автор: HASHIMOTO Masayuki, Horie Ryota, MICHISHITA Masaya, YOSHIMURA TAKAHIRO
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A vehicle driving-force distributing device includes: first connecting/disconnecting teeth disposed on the inner circumferential side of the ring gear; a connecting/disconnecting mechanism that includes a cylindrical member and a connecting/disconnecting sleeve including second connecting/disconnecting teeth and spline-fitted movably in the rotation axis direction and relatively non-rotatably to the outer circumferential side of the shaft insertion portion and that connects and disconnects a power transmission path between the ring gear and the differential case by moving the connecting/disconnecting sleeve in the rotation axis direction between a meshing position at which the second connecting/disconnecting teeth are meshed with the first connecting/disconnecting teeth and a non-meshing position at which the second connecting/disconnecting teeth are not meshed with the first connecting/disconnecting teeth; and a synchronizing mechanism disposed between the ring gear and the cylindrical member and reducing a relative rotation between the first connecting/disconnecting teeth and the second connecting/disconnecting teeth. 1. A vehicle driving-force distributing device including a ring gear disposed rotatably around a rotation axis and a differential device disposed rotatably around the rotation axis and including a differential case in which a pair of differential gears is assembled , the vehicle driving-force distributing device distributing a driving force transmitted from a drive power source to the ring gear through the differential device to left and right drive wheels , comprising:first connecting/disconnecting teeth disposed on the inner circumferential side of the ring gear;a connecting/disconnecting mechanism that includes a cylindrical member arranged concentrically with the differential gears and coupled relatively non-rotatably to a shaft insertion portion at one end portion of the differential case and a connecting/disconnecting sleeve including second ...

Подробнее
Номер записи: 70
06-04-2017 дата публикации

METHOD FOR OPERATING A DRIVETRAIN FOR A MOTOR VEHICLE AND CORRESPONDING DRIVETRAIN

Номер: US20170096061A1
Автор: BÄR Michael, HÜFNER STEFAN, KNELY CHRISTIAN, Meier Thomas-Willibald, MIHAILESCU Adrian, SAGEFKA MICHAEL, Strasser Sebastian
Принадлежит: Audi AG

A method for operating a drivetrain for a motor vehicle, said method includes: reducing a transmission torque transmitted between a primary drive axle operatively connected with a secondary drive axle of the motor vehicle via a clutch configured to allow adjustment of the transmission torque when determining at the secondary drive axle a wheel slip which exceeds a defined slip threshold value 110.-. (canceled)11. A method for operating a drivetrain for a motor vehicle , said method comprising:reducing a transmission torque transmitted between a primary drive axle operatively connected with a secondary drive axle of the motor vehicle via a clutch configured to allow adjustment of the transmission torque when determining at the secondary drive axle a wheel slip which exceeds a defined slip threshold value.12. The method of claim 11 , wherein the clutch is configured as a multidisc clutch and the transmission torque is adjusted by adjusting a pressing force of the multidisc clutch.13. The method of claim 11 , wherein the wheel slip at the secondary drive axle is recognized when a rotational speed of the secondary axle exceeds a rotational speed of the primary axle.14. The method of claim 11 , wherein the wheel slip at the secondary drive axle is recognized when a vehicle speed determined from at least one of a rotational speed of the primary dive axle and a rotational speed of the secondary drive axle exceeds an actual speed of the motor vehicle.15. The method of claim 11 , wherein the wheel slip at the secondary drive axle is recognized when a slip at the primary drive axle and a slip at the secondary dive axle exceed the slip threshold value.16. The method of claim 11 , wherein the transmission torque is reduced to a setpoint transmission torque which corresponds to a torque that is maximally applicable via the secondary drive axle.17. The method of claim 16 , wherein the maximally applicable torque is determined by using at least one variable of the group consisting ...

Подробнее
Номер записи: 71
26-03-2020 дата публикации

Electronic integrated wheel end disconnect for automotive application

Номер: US20200094675A1
Автор: Corbin Johnston, Jong Hyung Seo, Richard Haehn
Принадлежит: Iljin Usa Corp

The electronic IWE actuator includes an electric motor, a worm gear connected to the electric motor, a ball ramp including a worm wheel configured to engage with the worm gear, a clutch ring configured to engage with a wheel hub of the vehicle, and a shift fork configured to engage with the clutch ring and the ball ramp and move linearly in a direction along an axis of the wheel hub in response to a rotation of the ball ramp. The clutch ring is configured to engage with the wheel hub in response to a rotation of the worm gear in a first direction, and disengage from the wheel hub in response to a rotation of the worm gear in a second direction that is opposite to the first direction.

Подробнее
Номер записи: 72
26-03-2020 дата публикации

DIFFERENTIAL SENSOR APPARATUS AND METHOD OF USE

Номер: US20200094676A1
Автор: ADAMCZYK ANNE M., CREECH MICHAEL Z., DAVIS JUSTIN S.
Принадлежит: Dana Automotive Systems Group, LLC

An axle assembly including a differential case and a side gear having an inboard surface and an outboard surface disposed in the differential case. The side gear outboard surface defines a first plurality of locking teeth. A locking gear having an inboard surface and an outboard surface, wherein the inboard surface includes a second plurality of locking teeth selectively engaged with the first plurality of locking teeth. A biasing member disposed axially between the side gear and the locking gear. An electromagnetic coil disposed adjacent the locking gear. A first inductive sensor for sensing a position of the locking gear. 1. An axle assembly , comprising:a differential case;a side gear having an inboard surface and an outboard surface disposed in said differential case, wherein said outboard surface defines a first plurality of locking teeth;a locking gear having an inboard surface and an outboard surface, wherein said inboard surface includes a second plurality of locking teeth selectively engaged with said first plurality of locking teeth;a biasing member disposed axially between said side gear and said locking gear;an electromagnetic coil disposed adjacent said locking gear; anda first sensor for sensing a position of said locking gear, wherein said first sensor is an inductive sensor.2. The axle assembly according to claim 1 , further comprising:a first annular groove disposed in said outboard surface of said side gear; anda second annular groove disposed in said inboard surface of said locking gear, wherein said biasing member is at least partially disposed within said first and second annular grooves.3. The axle assembly according to claim 1 , further comprising:a plurality of apertures disposed in said differential case, wherein said locking gear includes a plurality legs disposed through said apertures.4. The axle assembly according to claim 1 , wherein:said differential case rotates relative to said electromagnetic coil.5. The axle assembly according to ...

Подробнее
Номер записи: 73
12-04-2018 дата публикации

SYSTEM AND METHOD FOR CONTROLLING PROPULSION OF MACHINE

Номер: US20180099670A1
Автор: Bell Jason D., Byers Brian A., Pauli Nathan S., Steinlage Justin L.
Принадлежит: CATERPILLAR INC.

A system for controlling propulsion of a machine is described. The system includes a first sensor for generating a first signal indicative of an articulation angle of the machine. The system also includes at least one transmission power unit coupled to front and rear powertrains of the machine. The system further includes a control module in communication with the first sensor and the at least one transmission power unit. The control module is configured to receive the first signal from the first sensor. The control module is also configured to control the at least one transmission power unit to provide power to at least one of the front powertrain or the rear powertrain, based on the articulation angle of the machine. 1. A system for controlling propulsion of a machine , the system comprising:a first sensor configured to generate a first signal indicative of an articulation angle of the machine;at least one transmission power unit coupled to a front powertrain and a rear powertrain of the machine; and receive the first signal from the first sensor; and', 'control the at least one transmission power unit to provide power to at least one of the front powertrain or the rear powertrain, based on the articulation angle of the machine., 'a control module in communication with the first sensor and the at least one transmission power unit, the control module configured to2. The system of further comprising at least one of:a second sensor configured to generate a second signal indicative of grade on which the machine travels, ora third sensor configured to generate a third signal indicative of payload of the machine, receive at least one of the second signal or the third signal; and', 'control the at least one transmission power unit to provide power to the at least one of the front powertrain or the rear powertrain, based on the articulation angle of the machine and at least one of the grade on which the machine travels or the payload of the machine., 'wherein the control ...

Подробнее
Номер записи: 74
08-04-2021 дата публикации

Vehicle caravan of electric vehicles configured for coordinated movement and airflow control and method of using

Номер: US20210101471A1
Автор: Geoffrey David Gaither, Justin J. Chow, Robert C. MacArthur
Принадлежит: Toyota Motor Engineering and Manufacturing North America Inc

A vehicle caravan comprising electric vehicles configured for coordinated movement and airflow control comprising: a lead vehicle and chase vehicle, the lead vehicle disposed at the front of the caravan and the chase vehicle disposed behind the lead vehicle in a chase pattern. Each lead and chase vehicle comprising: a vehicle chassis and a front rotatable vehicle drive axle; a selectively movable electric propulsion motor comprising a rotatable motor shaft and motor axis configured to be oriented in a substantially vertical direction; an air duct configured to direct an airflow to the propulsion motor; an airflow shutter in the front end of the air duct to selectively control the airflow within the air duct; and a vehicle controller; the caravan and chase pattern configured for coordination of the motor position and the open/closed position of the lead and chase vehicle shutters while the caravan is moving.

Подробнее
Номер записи: 75
08-04-2021 дата публикации

Vehicle

Номер: US20210101481A1
Автор: Hiroki Saito, Shingo SATAKE, Yoshimitsu YOKOUCHI
Принадлежит: Toyota Motor Corp

The controller is programmed to perform first control that controls a driving force distributor such as to decrease a distribution rate upon satisfaction of a predetermined condition that a frequency of at least one rotation fluctuation of an output member of the drive system, a main drive wheel and a sub drive wheel is within a predetermined area, compared with the distribution rate upon non-satisfaction of the predetermined condition.

Подробнее
Номер записи: 76
08-04-2021 дата публикации

Electric vehicle

Номер: US20210101489A1
Автор: Takuya Yano
Принадлежит: Subaru Corp

An electric vehicle includes first and second traveling motors, first and second rotational position sensors, and a measurement controller. The first rotational position sensor detects a rotation angle of the first traveling motor and has a first wheel-speed range in which a deviation of an original position of the first rotational position sensor is measurable. The second rotational position sensor detects a rotation angle of the second traveling motor and has a second wheel-speed range in which a deviation of an original position of the second rotational position sensor is measurable. The second wheel-speed range differs from the first wheel-speed range. The measurement controller executes, in an execution order, measurements of the deviations of the original positions of the first and second rotational position sensors while the electric vehicle is traveling, and switch the execution order on the basis of acceleration or deceleration data of the electric vehicle.

Подробнее
Номер записи: 77
26-03-2020 дата публикации

CONTROL OF A HYDRAULIC TRANSMISSION AS A FUNCTION OF THE AGEING OF THE TRANSMISSION FLUID

Номер: US20200096095A1
Автор: CLAPIT Bastien
Принадлежит:

The invention relates to a system () for controlling a disengageable hydraulic transmission () for a vehicle, involving the circulation and the pressurisation of a transmission fluid, said system () comprising: —means () for collecting information relative to the operation of the hydraulic transmission () since the last time the transmission was serviced, —means () for estimating an ageing state of the transmission fluid based on the information collected, and —means () for controlling the disengageable hydraulic transmission () as a function of the estimated ageing state. 1. A system for controlling a disengageable hydraulic transmission for vehicles , involving the circulation and the pressurization of a transmission fluid , said hydraulic transmission comprising:a first hydraulic machine connected to a first axle of the vehicle, and a second hydraulic machine connected to a second axle of the vehicle, to provide additional and temporary wheel power, anda set of pipes capable of routing the transmission fluid between the two hydraulic machines by means of at least one high-pressure line,said system comprising:means for collecting information relating to the operation of the hydraulic transmission since a last maintenance of the transmission,means for estimating an ageing state of the transmission fluid based on the information collected, said means comprising means for estimating the viscosity of the transmission fluid, andcontrol means for the disengageable hydraulic transmission depending on the estimated ageing state so as to adapt the operation of the hydraulic transmission to preserve the longevity of the transmission parts of the hydraulic machines.2. The system according to claim 1 , wherein the means for collecting information relating to the operation of the hydraulic transmission comprise means for collecting information relating to the pressure or the temperature of the transmission fluid so as to establish a history of the temperature or pressure of ...

Подробнее
Номер записи: 78
04-04-2019 дата публикации

RADIAL WEDGE PLATE CLUTCH

Номер: US20190101172A1
Автор: Ince Marion Jack, Zhong Guihui
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A radial wedge clutch, including: an axis of rotation; a shaft; an outer ring located radially outward of the shaft; a cage radially disposed between the shaft and the outer ring; a plurality of circumferentially aligned wedge plate segments radially disposed between the shaft and the outer ring; at least one resilient element urging the plurality of circumferentially aligned wedge plate segments radially outwardly; and an actuation plate axially displaceable in a first axial direction to engage the cage and rotate the cage and the plurality of circumferentially aligned wedge plate segments. 1. A radial wedge clutch , comprising:an axis of rotation;a shaft;an outer ring located radially outward of the shaft;a cage radially disposed between the shaft and the outer ring;a plurality of circumferentially aligned wedge plate segments radially disposed between the shaft and the outer ring;at least one resilient element urging the plurality of circumferentially aligned wedge plate segments radially outwardly; and, engage the cage; and,', 'rotate the cage and the plurality of circumferentially aligned wedge plate segments., 'an actuation plate axially displaceable in a first axial direction to2. The radial wedge clutch of claim 1 , wherein:the at least one resilient element is in contact with the cage and the plurality of circumferentially aligned wedge plate segments; and,the actuation plate is non-rotatably connected to the shaft.3. The radial wedge clutch of claim 1 , wherein:in a connect mode for the radial wedge clutch, the shaft, the plurality of circumferentially aligned wedge plate segments, and the outer ring are non-rotatably connected; and, non-rotatably connect to the cage; and', 'rotate the shaft, the cage, and the plurality of circumferentially aligned wedge plate segments, with respect to the outer ring., 'to initiate the connect mode, the actuation plate is axially displaceable in the first axial direction to4. The radial wedge clutch of claim 1 , wherein: ...

Подробнее
Номер записи: 79
23-04-2015 дата публикации

Control system for four-wheel-drive vehicle

Номер: US20150111696A1
Автор: Hiroyuki Ishii, Kunihiro Iwatsuki, Yoshinori Maeda
Принадлежит: Toyota Motor Corp

In a control system, a transfer is connected to a rotation member between a driving power source and primary driving wheels and distributes dynamic power of the driving power source to secondary drive wheels. A driving power transmission shaft transmits the dynamic power of the driving power source distributed by the transfer to the secondary drive wheels. A connection-disconnection mechanism is disposed between the rotation member and the driving power transmission shaft. First and second clutches are disposed respectively between the driving power transmission shaft and right and left wheels of the secondary drive wheels. The electronic control unit is configured, when switching from a two-wheel-drive running state to a four-wheel-drive running state on the basis of a vehicle running state, to generate a transmission torque in the first clutch or the second clutch after controlling the connection-disconnection mechanism to engage the connection-disconnection mechanism.

Подробнее
Номер записи: 80
03-07-2014 дата публикации

Utility vehicle

Номер: US20140187376A1
Автор: Ayumi Hamada, Seiji Itoo, Taisuke Morita, Yuji KOUMA
Принадлежит: Kawasaki Jukogyo KK

A utility vehicle is capable of switching between a two wheel drive mode for transmitting drive force to rear wheels and a four wheel drive mode for transmitting the drive force to front wheels and the rear wheels. The transmission includes an input shaft to which the drive force from an engine is inputted, a front wheel drive output shaft for transmitting the drive force of the input shaft to the front wheels, and a rear axle for transmitting the drive force of the input shaft to the rear wheels. A rear wheel drive output shaft is provided in a motive power transmission route between the front wheel drive output shaft and the rear axle.

Подробнее
Номер записи: 81
23-04-2015 дата публикации

DRIVING FORCE DISTRIBUTION APPARATUS AND METHOD FOR DISTRIBUTING DRIVING FORCE

Номер: US20150112563A1
Автор: NIHANDA Norihisa, OHYAGI Shoichi, SEKI Takayuki
Принадлежит: HONDA MOTOR CO., LTD.

A driving force distribution apparatus includes a basic distribution ratio calculator, a servo controller, and an adjuster. The basic distribution ratio calculator is configured to calculate a basic distribution ratio between a front driving force for front wheels and a rear driving force for rear wheels based on loads exerted on the front and rear wheels of a vehicle. The servo controller is configured to correct the basic distribution ratio so as to increase or decrease the basic distribution ratio based on a deviation between a target value of a rotation difference between the front and rear wheels and a measured value of the rotation difference between the front and rear wheels. The adjuster is configured to perform adjustment so that the rear driving force calculated based on the basic distribution ratio corrected by the servo controller does not exceed a total driving force. 1. A driving force distribution apparatus for distributing a driving force from a driving source to front and rear wheels of a vehicle , the driving force distribution apparatus comprising:a basic distribution ratio calculating device configured to calculate a basic distribution ratio between the driving force to the front wheels and the driving force to the rear wheels on the basis of loads exerted on the front and rear wheels of the vehicle;a servo control device configured to correct the basic distribution ratio so as to increase or decrease the basic distribution ratio on the basis of a deviation between a target value of a rotation difference between the front and rear wheels and a measured value of the rotation difference between the front and rear wheels, the target value and the measured value corresponding to a running state of the vehicle; andan adjusting device configured to perform adjustment such that the driving force distributed to the rear wheels indicated by the distribution ratio corrected by the servo control device does not exceed a total driving force.2. The driving ...

Подробнее
Номер записи: 82
19-04-2018 дата публикации

DRIVE UNIT WITH LIMITED SLIP AND DRIVELINE DISCONNECT CAPABILITY

Номер: US20180106353A1
Автор: GUARINO William David, MOUBARAK Paul
Принадлежит:

A clutch assembly includes a first clutch assembly having first clutch plates rotatably fixed to a first shaft and first carrier plates rotatably fixed to a clutch basket. The clutch assembly further includes a second clutch assembly having second clutch plates rotatably fixed to a second shaft and second carrier plates rotatably fixed to the clutch basket. The first and second clutch assemblies rotate about a common central axis and are actuated by a common actuator. 1. A secondary axle clutch assembly comprising:a differential carrier including a differential shaft rotatable about a central axis of rotation;a plurality of limited slip differential (LSD) clutch plates rotatably fixed to the differential shaft and axially movable relative to the differential shaft;an intermediate shaft extending coaxially with the differential shaft and rotatable about the central axis of rotation;a plurality of torque clutch plates rotatably fixed to the intermediate shaft and axially movable relative to the intermediate shaft;a clutch basket extending over the torque clutch plates and the LSD clutch plates and rotatable about the central axis of rotation, the clutch basket comprising a first plurality of carrier plates disposed adjacent to the torque clutch plates and a second plurality of carrier plates disposed adjacent to the LSD clutch plates; andan actuator adapted to apply an axial force to the torque clutch plates and the LSD clutch plates to engage the torque clutch plates with the first plurality of carrier plates, and to engage the LSD clutch plates with the second plurality of carrier plates.2. The secondary axle clutch assembly of claim 1 , wherein the intermediate shaft is rotatably connected to a side gear disposed within the differential carrier claim 1 , and wherein the intermediate shaft includes at least a portion extending within the differential shaft.3. The secondary axle clutch assembly of claim 1 , wherein the clutch basket is rotatably secured to an output ...

Подробнее
Номер записи: 83
10-07-2014 дата публикации

Vehicle and method of controlling a vehicle

Номер: US20140190758A1
Автор: Ian Beverley, Russell Osborn
Принадлежит: Jaguar Land Rover Ltd

Embodiments of the invention provide a vehicle comprising: prime mover means; at least first and second groups of one or more wheels; and a driveline to connect the prime mover means to the first and second groups of one or more wheels such that the first group of one or more wheels is driven by the prime mover means when the driveline is in a first mode of operation and the second group of one or more wheels is additionally driven by the prime mover means when the driveline is in a second mode of operation, the driveline including an auxiliary driveline comprising an auxiliary driveshaft and drive means between the auxiliary driveshaft and the second group of one or more wheels, the drive means being operable to connect the second group of one or more wheels to the auxiliary driveshaft when the driveline transitions between the first mode and the second mode, the drive means having an input portion, an output portion and first and second releasable torque transmitting means coupled in series therebetween, the first releasable torque transmitting means having an input portion and an output portion, the first releasable torque transmitting means being operable to allow slip between the respective portions thereby to modulate an amount of torque transmitted from the input to the output portion, the second releasable torque transmitting means also having an input portion and an output portion, the second releasable torque transmitting means being operable between a first condition in which the input portion is isolated from the output portion and a second condition in which the input and output portions are directly coupled such that torque applied to the input portion is transmitted substantially directly to the output portion.

Подробнее
Номер записи: 84
09-06-2022 дата публикации

Atv with ratcheting four wheel drive actuator

Номер: US20220176814A1
Автор: Justin Arthur LANDON
Принадлежит: Arctic Cat Inc

A system for and method of shifting a drive configuration of an all-terrain vehicle (ATV) is provided. The system includes a shifter assembly, a gear case, and a linkage assembly extending therebetween. The shifter assembly includes a trigger lever for receiving a mechanical user input, thereby moving the shifter assembly between a locked configuration and an unlocked configuration. The linkage assembly translates the user input to the gear case, thereby causing the gear case to shift between an engaged configuration and a disengaged configuration, respectively. A linkage biasing member provides mechanical flexibility between the shifter assembly and the gear case, facilitating shifting on the fly. The trigger lever is operated by toggling it from a rest position to a deployed position. Upon user release, the trigger lever is automatically returned to its rest position for future engagement by the user.

Подробнее
Номер записи: 85
27-04-2017 дата публикации

CONTROL DEVICE FOR FOUR WHEEL DRIVE VEHICLE

Номер: US20170113546A1
Автор: MAEDA Yoshinori
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A control device for a four wheel drive vehicle. Differential limitation is applied to both of right and left rear wheels, with 2WD_d state being maintained, by executing two wheel control for engaging or half-engaging a first clutch and a second clutch. As the two wheel drive control is executed, a moment that suppresses the rotation speed difference between the right and left rear wheels acts on the right and left rear wheels even in the 2WD_d state. When the rotation speed difference occurs between the right and left rear wheels, a braking force is allowed to act on the vehicle wheel on the high rotation side and a driving force is allowed to act on the vehicle wheel on the low rotation side through the execution of the two wheel drive control so that a stable moment acts on the vehicle without a transition to a 4WD state. 1. A control device for a four wheel drive vehicle , the four wheel drive vehicle including;a disconnection mechanism configured to connect/disconnect a power transmission path transmitting a part of power of a driving force source transmitted to main driving wheels to auxiliary driving wheels during four wheel drive of the four wheel drive vehicle;a first clutch disposed in one of power transmission paths between the disconnection mechanism and both of right and left wheels of the auxiliary driving wheels; anda second clutch disposed in the other one of the power transmission paths between the disconnection mechanism and both of the right and left wheels of the auxiliary driving wheels,the control device comprising:an electronic control unit configured to:(a) switch an operation state of the disconnection mechanism, the first clutch, and the second clutch in accordance with a traveling state of the four wheel drive vehicle, and(b) execute a two wheel drive control for engaging or half-engaging the first clutch and the second clutch, based on the traveling state of the four wheel drive vehicle, with a two wheel drive state where the ...

Подробнее
Номер записи: 86
09-04-2020 дата публикации

TRAVEL CONTROL APPARATUS FOR FOUR-WHEEL DRIVE VEHICLE

Номер: US20200108716A1
Автор: Iwazaki Noritsugu, Suetake Yusuke
Принадлежит:

Disclosed is a travel control apparatus for a four-wheel drive vehicle in which the states of engagements between a drive output part for secondary drive wheels and left and right secondary drive wheel axles are each changed to a torque transmission state or a torque transmission interruption state. The ratio of rotational speed of the drive output part to the average of rotational speeds of primary drive wheels is greater than 1. When the engagement states corresponding to the secondary drive wheels on the outer and inner sides of a turning locus have been set to the torque transmission state and the torque transmission interruption state, respectively, the engagement state having been set to the torque transmission state is changed to the torque transmission interruption state upon determination that an accelerator pedal is not operated and the magnitude of lateral acceleration is equal to or greater than a predetermined threshold. 1. A travel control apparatus for a four-wheel drive vehicle which includes:a drive apparatus for generating driving force;a differential apparatus which transmits the driving force to a left primary drive wheel axle connected to a left primary drive wheel and a right primary drive wheel axle connected to a right primary drive wheel while allowing a differential between the left primary drive wheel axle and the right primary drive wheel axle;a transfer gear apparatus for transmitting the driving force to a secondary drive wheel side;a final gear apparatus which transmits the driving force from the transfer gear apparatus to a left secondary drive wheel axle connected to a left secondary drive wheel and a right secondary drive wheel axle connected to a right secondary drive wheel;a first coupling apparatus which is interposed between a drive output part of the final gear apparatus and the left secondary drive wheel axle and which can change a first engagement state which is a state of engagement between the drive output part and the left ...

Подробнее
Номер записи: 87
03-05-2018 дата публикации

BEHAVIOR CONTROL DEVICE FOR FOUR-WHEEL DRIVE VEHICLE

Номер: US20180118024A1
Автор: Watanabe Ryochi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A behavior control device for a four-wheel drive vehicle that is applied to a vehicle which comprises a center differential device that transmits a driving force from a driving device to front and rear wheel rotation shafts, and permits differential of the front and rear wheel rotation shafts; and a braking force distribution ratio of the front and rear wheels being set to a value in which a proportion of front wheels is larger than that in an ideal distribution ratio. The behavior control device comprises a differential limiting device that changes the limitation degree of a differential between the wheel rotation shafts, and a control unit that controls the differential limiting device to increase the limitation degree of the differential during the vehicle is braked as a degree of an understeer state of the vehicle is high. 1. A behavior control device for a four-wheel drive vehicle that is applied to a vehicle which comprises a driving device; a center differential device that transmits a driving force from the driving device to a front wheel rotation shaft and a rear wheel rotation shaft , and permits differential of the front wheel rotation shaft and the rear wheel rotation shaft; and a behavior estimation device for estimating a behavior of the vehicle; the braking force distribution ratio of the front and rear wheels being set to a value in which a ratio of front wheels is larger than that in an ideal distribution ratio based on a ground load ratio of the front and rear wheels; the behavior control device comprising a differential limiting device that changes a limitation degree of a differential between the front wheel rotation shaft and the rear wheel rotation shaft , and a control unit that controls the differential limiting device , and being configured to control a behavior of the vehicle during braking ,wherein the control unit is configured to control the differential limiting device to increase the limitation degree of the differential during the ...

Подробнее
Номер записи: 88
07-05-2015 дата публикации

System and method of preventing articulated machine roll-over

Номер: US20150127229A1
Автор: David R. Wisley, Fazal A. Goraya, Ryan T. Anderson, Timothy D. Schwartz
Принадлежит: Caterpillar Inc

An articulated machine having a first frame and a second frame supported by first and second wheel assemblies respectively is provided. The machine includes a first sensor and a second sensor to provide position information of the first frame and the second frame respectively. The machine includes a drive train to couple the front and rear wheel assembly, and having an inter axle differential to facilitate the front and the rear wheel assembly to move at different speeds. The machine includes a controller to compare position of the first frame with position of the second frame to determine relative position of the second frame with respect to the first frame. The controller compares the relative position of the second frame with a predefined position limit. The controller selectively locks the inter axle differential when the determined relative position of the second frame is greater than the predefined position limit

Подробнее
Номер записи: 89
25-08-2022 дата публикации

CONTROL APPARATUS FOR MOTIVE POWER TRANSMISSION DEVICE, VEHICLE, AND METHOD OF CONTROLLING MOTIVE POWER TRANSMISSION DEVICE

Номер: US20220266688A1
Автор: AKIYAMA Yosuke, HOMAN Akinori, Ijichi Akira, ITOU Yoshio, KOBAYASHI Taichi, TAKAIRA Koji, USUI Kunihiko
Принадлежит:

A control apparatus for a motive power transmission device equipped with a first input shaft, a second input shaft to which a motive power from a motor is input, a rear wheel-side output shaft from which a motive power is output to a first driving wheel, a front wheel-side output shaft from which a motive power is output to a second driving wheel, and a planetary gear device that has, as three rotating elements, a sun gear to which the second input shaft is coupled, a carrier to which the front wheel-side output shaft is coupled, and a ring gear to which the first input shaft and the rear wheel-side output shaft are coupled engages an engagement device when a torque of the rear wheel-side output shaft is equal to or smaller than a threshold with the motor outputting the motive power. 1. A control apparatus for a motive power transmission device equipped with a first input shaft to which a motive power from a first motive power source is input , a second input shaft to which a motive power from a second motive power source is input , a first output shaft from which a motive power is output to a first driving wheel , a second output shaft from which a motive power is output to a second driving wheel , and a differential device that has , as three rotating elements , a first rotating element to which the second input shaft is coupled , a second rotating element to which the second output shaft is coupled , and a third rotating element to which the first input shaft and the first output shaft are coupled ,the control apparatus restricting a differential effect of the differential device more when a torque of the first output shaft is equal to or smaller than a threshold than when the torque of the first output shaft is larger than the threshold, with the second motive power source outputting the motive power.2. The control apparatus for the motive power transmission device according to claim 1 , whereinthe motive power transmission device is further equipped with an ...

Подробнее
Номер записи: 90
25-08-2022 дата публикации

VEHICLE AND CONTROL DEVICE FOR VEHICLE

Номер: US20220266689A1
Автор: AKIYAMA Yosuke, HOMAN Akinori, Ijichi Akira, ITOU Yoshio, KOBAYASHI Taichi, TAKAIRA Koji, USUI Kunihiko
Принадлежит:

When temperature of a second power source of a vehicle becomes higher than a threshold value during a first mode in which three rotating elements of a differential gear can make differential movement and when four-wheel drive is needed, switching is performed to a second mode in which the three rotating elements are unified, and when four-wheel drive is not needed even when the temperature of the second power source becomes higher than the threshold value during the first mode, output of the second power source is restricted, while the first mode is maintained. 1. A vehicle comprising a transmission system , a first input shaft to which motive power from a first power source is input;', 'a second input shaft to which motive power from a second power source is input;', 'a first output shaft that outputs the motive power to a first drive wheel;', 'a second output shaft that outputs the motive power to a second drive wheel;', a first rotating element to which the second input shaft is coupled,', 'a second rotating element to which the second output shaft is coupled, and', 'a third rotating element to which the first output shaft is coupled; and, 'a differential gear including, as three rotating elements,'}, 'an engagement device that selectively couples any two rotating elements of the three rotating elements, and, 'the transmission system includingthe transmission system being capable of switching between a first mode in which the engagement device is released and the three rotating elements can make differential movement, and a second mode in which the engagement device is engaged and the three rotating elements are mechanically unified,wherein when temperature of the second power source becomes higher than a threshold value during the first mode and when both the first drive wheel and the second drive wheel need to be driven, switching is performed from the first mode to the second mode, and when the first drive wheel and the second drive wheel do not both need to ...

Подробнее
Номер записи: 91
16-04-2020 дата публикации

Methods and system for disconnecting an axle

Номер: US20200114769A1
Автор: Joseph Torres, Paul MOUBARAK
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for operating a vehicle that may be propelled via a primary axle and a secondary axle. In one example, a propulsion source of a secondary axle may be decoupled from at least one wheel via a dog clutch that includes teeth. The dog clutch may be disengaged in a way that reduces driveline noise and may reduce a possibility of driveline degradation.

Подробнее
Номер записи: 92
10-05-2018 дата публикации

Disconnecting all-wheel drive driveline having flat tow capabilities

Номер: US20180126846A1
Автор: Jeffrey L. Kincaid, Ryan M. Baeder, Thomas C. Paluch
Принадлежит: American Axle and Manufacturing Inc

An all-wheel drive vehicle driveline that includes a PTU input member, a spindle, a stub shaft, an axle shaft, a PTU clutch and a stub shaft clutch. The PTU input member, the spindle, the stub shaft and the axle shaft are rotatable about a first rotary axis. The axle shaft is received through the spindle. The PTU clutch is operable in a first PTU clutch mode, in which the PTU input member is rotatably coupled to the spindle, and a second PTU clutch mode in which the PTU input member is rotatably decoupled from the spindle. The stub shaft clutch is operable in a first stub shaft clutch mode, in which the stub shaft is rotatably coupled to the axle shaft, and a second stub shaft clutch mode, in which the stub shaft is rotatably de-coupled from the axle shaft.

Подробнее
Номер записи: 93
10-05-2018 дата публикации

METHOD FOR SYNCHRONIZATION CONTROL OF RAPID CONNECT AWD SYSTEMS

Номер: US20180126848A1
Автор: GOOSSENS Stijn, VERSTEYHE MARK R. J., VYNCKE THOMAS J.
Принадлежит: Dana Automotive Systems Group, LLC

A method of controlling an all-wheel-drive system connect event including providing a power transmission apparatus having a clutch, a propeller shaft, and a rear drive unit with a clutch pack assembly. The rear drive unit clutch pack is actuated by creating a model of the propeller shaft rotational speed, adapting the model parameters to compensate for temperature and vehicle wheel speed, storing the model, adapting the model utilizing information collected during a previous all-wheel-drive system connect event, and developing a set point for the clutch driving element utilizing the model and a multi-loop control architecture. The power transmission apparatus clutch is then engaged. 1. A method for controlling a vehicle all-wheel-drive system connect event , which comprises: a power transmission apparatus having a clutch,', 'a propeller shaft,', 'said power transmission apparatus selectively driveably coupled with said propeller shaft,', 'a rear drive unit including a clutch pack assembly,', 'said rear drive unit selectively driveably coupled with said propeller shaft, and, 'providing a portion of a vehicle driveline including creating a model of said propeller shaft rotational speed utilizing a torque of said clutch pack assembly and a position of a clutch pack assembly power source,', 'adapting a parameter of said model to compensate for dynamic temperature and said vehicle wheel speed,', 'storing said model,', 'adapting said model utilizing information collected during a previously completed all-wheel-drive system connect event,', 'developing a clutch driving element set point utilizing said model of said propeller shaft rotational speed and a multi-loop control architecture,, 'actuating said rear drive unit clutch pack assembly, where said actuation comprises,'}engaging said power transmission apparatus clutch.2. The method for controlling a vehicle all-wheel-drive system connect event as recited in claim 1 , wherein the step of providing a portion of a vehicle ...

Подробнее
Номер записи: 94
11-05-2017 дата публикации

Compact electronically controlled front wheel drive torque vectoring system with single or dual axle modulation

Номер: US20170130815A1
Автор: Andrew Edler, Gregory Heatwole, Hongbin Wang, Payam Naghshtabrizi, Richard Kukucka, Sean Brown
Принадлежит: Eaton Corp

A torque vectoring system constructed in accordance to one example of the present disclosure includes a differential, a first drive axle, a second drive axle, a first gear train and a second gear train. The first drive axle is operably coupled to the differential. The second drive axle is operable coupled to the differential. The first gear train is selectively driven by the differential and is configured to selectively supply a speed application from the differential to one of the first and second drive axles. The second gear train is selectively driven by the differential and is configured to selectively supply a speed reduction from the differential to one of the first and second drive axles.

Подробнее
Номер записи: 95
03-06-2021 дата публикации

ATV WITH RATCHETING FOUR WHEEL DRIVE ACTUATOR

Номер: US20210162863A1
Автор: LANDON Justin Arthur
Принадлежит:

A system for and method of shifting a drive configuration of an all-terrain vehicle (ATV) is provided. The system includes a shifter assembly, a gear case, and a linkage assembly extending therebetween. The shifter assembly includes a trigger lever for receiving a mechanical user input, thereby moving the shifter assembly between a locked configuration and an unlocked configuration. The linkage assembly translates the user input to the gear case, thereby causing the gear case to shift between an engaged configuration and a disengaged configuration, respectively. A linkage biasing member provides mechanical flexibility between the shifter assembly and the gear case, facilitating shifting on the fly. The trigger lever is operated by toggling it from a rest position to a deployed position. Upon user release, the trigger lever is automatically returned to its rest position for future engagement by the user. 1. A vehicle comprising a shifter assembly for changing a drive configuration of the vehicle , the shifter assembly comprising:a cam having a position indicator, the cam being rotatable about a first axis between first and second cam orientations such that the position indicator is moveable between first and second indicator positions, respectively; anda trigger assembly having a trigger lever and an engagement pin extending therefrom, the trigger lever being rotatable about the first axis such that the trigger lever is moveable between first and second trigger positions,wherein the cam defines an engagement lip displaced from the first axis,wherein the engagement pin is displaced from the first axis and is configured to engage with the engagement lip of the cam when rotation of the cam and trigger lever are synchronized, thereby enabling the trigger assembly to influence rotation of the cam, andwherein the first and second indicator positions are associated with respective first and second drive configurations of the vehicle.2. The vehicle of claim 1 , further ...

Подробнее
Номер записи: 96
02-05-2019 дата публикации

REGENERATIVE DIFFERENTIAL FOR DIFFERENTIALLY STEERED AND FRONT-WHEEL STEERED VEHICLES

Номер: US20190128396A1
Автор: Chu Shaun
Принадлежит:

Disclosed herein are systems, gearing assemblies and methods for controlling a differential rotation rate between shafts of a vehicle using a variable speed reversible motor. An embodiment includes a gearing assembly including a differential configured to engage a first axle shaft, a second axle shaft, and a drive shaft of a vehicle. The gearing assembly further includes a first plurality of alignment gears and a second plurality of adjustment gears configured to engage the differential, configured to be driven by a variable speed reversible motor of the vehicle, and configured to controllably alter a rotation rate of a first axle shaft relative to a rotation rate of the second axle shaft based on rotation produced by the variable speed reversible motor. 1. A gearing assembly comprising:a differential configured to engage a first axle shaft and a second axle shaft of a vehicle and configured to be driven by a drive shaft of the vehicle;a differential control pinion gear configured to be driven by a variable speed reversible motor of the vehicle; a first planetary gear carrier;', 'a first set of planetary gears coupled to the first planetary gear carrier; and', 'a second set of planetary gears coupled to the first planetary gear carrier; and, 'a first plurality of adjustment gears configured to engage the differential and to engage the differential control pinion gear, the first plurality of adjustment gears comprising a second planetary gear carrier;', 'a third set of planetary gears coupled to the second planetary gear carrier; and', 'a fourth set of planetary gears coupled to the second planetary gear carrier;, 'a second plurality of adjustment gears configured to engage the differential and to engage the differential control pinion gear, the second plurality of adjustment gears comprisingwherein the first plurality of adjustment gears and the second plurality of adjustment gears are configured to controllably alter a rotation rate of the first axle shaft relative ...

Подробнее
Номер записи: 97
03-06-2021 дата публикации

Reactive Steering System for a Work Vehicle Having an Articulated Chassis

Номер: US20210163065A1
Автор: BENEVELLI Alessandro
Принадлежит:

A work vehicle including an articulated vehicle chassis having a front frame portion and a rear frame portion pivotally coupled together at a generally vertical pivot axis. The front frame portion carries a front axle and the rear frame portion carries a rear axle. A steering system includes at least one steering cylinder connected between the front frame portion and the rear frame portion. A power plant provides motive power to the work vehicle, and a transmission receives power from the power plant and provides power to the front axle and rear axle. The work vehicle further includes a secondary clutch interconnected between the transmission and the rear axle. The steering system is configured to disengage the secondary clutch to provide reactive steering, whereby the front frame portion tows the rear frame portion. The rear frame portion freely articulates relative to the front frame portion. 1. A work vehicle , comprising:a front axle;a rear axle;an articulated vehicle chassis including a front frame portion and a rear frame portion pivotally coupled together at a generally vertical pivot axis, the front frame portion carrying the front axle and the rear frame portion carrying the rear axle;a steering system including at least one steering cylinder connected between the front frame portion and the rear frame portion;a power plant providing motive power;a transmission receiving power from the power plant and providing power to each of the front axle and the rear axle; anda clutch interconnected between the transmission and the rear axle,wherein the steering system is configured to disengage the clutch to provide reactive steering, whereby the front frame portion tows the rear frame portion and the rear frame portion is generally free to pivot relative to the front frame portion about the pivot axis.2. The work vehicle of claim 1 , further comprising a steering valve which is fluidly coupled with the at least one steering cylinder and has a selective reactive ...

Подробнее
Номер записи: 98
18-05-2017 дата публикации

Vehicle and Method of Controlling a Vehicle

Номер: US20170136932A1
Автор: Balfour David James, Thompson Stephen
Принадлежит: CATERPILLAR SARL

The present disclosure relates generally to a vehicle and a method of controlling a vehicle which has a material discharge mechanism, such as a tipping or ejection mechanism. The vehicle may be provided with a control system which is configured to engage a brake mechanism and lock an inter-axle differential when it determines that activation of the material discharge mechanism has been requested and the transmission is in neutral mode. 1. A vehicle comprising:a material discharge mechanism;a plurality of axles;an inter-axle differential connecting the plurality of axles;a transmission having at least one drive mode and a neutral mode;at least one brake mechanism; anda control system, said control system being configured to engage the at least one brake mechanism and lock the inter-axle differential when it determines that activation of the material discharge mechanism has been requested and the transmission is in neutral mode.2. A vehicle as claimed in claim 1 , wherein the control system engages the at least one brake mechanism and locks the inter-axle differential if it determines that the vehicle is substantially stationery.3. A vehicle as claimed in claim 1 , wherein the vehicle further comprises a power unit providing a power output for operating the material discharge mechanism claim 1 , and the control system increases the power output of the power unit when it determines that activation of the material discharge mechanism has been requested and the transmission is in neutral mode.4. A vehicle as claimed in claim 1 , wherein the control system is configured to disengage the at least one brake mechanism and unlock the inter-axle differential when it determines that the transmission is in a drive mode.5. A vehicle as claimed in claim 1 , further comprising an operator controlled material discharge mechanism selection lever claim 1 , the operation of which requests activation of the material discharge mechanism.6. A vehicle as claimed in claim 1 , further ...

Подробнее
Номер записи: 99
17-05-2018 дата публикации

Hydraulic-Assistance System for Open-Circuit Motor Vehicles

Номер: US20180135749A1
Автор: "DHERSIGNERIE Cyrille", PRIGENT André
Принадлежит: POCLAIN HYDRAULICS INDUSTRIE

The present invention relates to a hydraulic-assistance system for motor vehicles, comprising a primary motor (M) and two hydraulic machines () connected by a hydraulic circuit such that when a first hydraulic machine () operates as a pump, the second hydraulic machine () operates as a motor. The invention is characterized in that the hydraulic circuit connecting the two machines () is an open circuit passing through a tank (), the hydraulic machine () operating as a motor is a declutchable machine, and the hydraulic machine () operating as a pump is a pump in which the variable displacement is controlled by a device comprising a proportional pressure limiter () placed between a drain line () and the discharge line of the hydraulic machine () operating as a pump, and enabling the assistance pressure to be set, and at least one collection nozzle () placed between the proportional pressure limiter () and the discharge line of the hydraulic machine (), the setpoint pressure controlling the hydraulic machine () operating as a pump being collected between the pressure limiter () and the collection nozzle (). 1140240250140240250140240250300240250140470143140460470140140470460. A hydraulic assistance system for motor vehicles , comprising a primary motor (M) and two hydraulic machines (; , ) connected by a hydraulic circuit in such a manner that when a first hydraulic machine () operates as a pump , the second hydraulic machine ( , ) operates as a motor , characterized in that the hydraulic circuit connecting the two machines (; , ) is an open circuit running through a reservoir () , the hydraulic machine ( , ) forming a motor is a declutchable machine , and the hydraulic machine () operating as a pump is a pump , the variable displacement whereof is controlled in pressure by means of a device comprising a proportional calibration pressure limiter () , placed between a drain line () and the discharge line of the hydraulic machine () operating as a pump , and allowing the ...

Подробнее
Номер записи: 100