公开(公告)号：US11261957B2

公开(公告)日：2022-03-01

申请号：US13515748

申请日：2010-12-13

申请人： Michael P. Bujold

发明人： Michael P. Bujold

IPC分类号： B60W10/108 ,  F16H59/14 ,  F16H15/50 ,  B60W10/06 ,  F16H61/04 ,  F16H37/02 ,  F16H59/18 ,  F16H59/36 ,  F16H63/50 ,  F16H61/664

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

公开(公告)号：US11204092B2

公开(公告)日：2021-12-21

申请号：US16082597

申请日：2017-02-17

申请人： JATCO LTD

发明人： Ken Okahara ,  Hiroyasu Tanaka

IPC分类号： F16H59/06 ,  F16H61/14 ,  B60W30/188 ,  F16H59/18 ,  F16H59/38 ,  F16H59/70 ,  F16H61/04 ,  F16H61/66 ,  F16H63/46 ,  F16H59/36 ,  F16H61/662 ,  B60W10/02 ,  F16H61/00 ,  B60W50/00 ,  G07C5/08 ,  F16H61/16 ,  F16H59/02

摘要： A control device for an automatic transmission includes a continuously variable transmission mechanism, a torque converter, a target transmission ratio calculation unit, a feedback control unit, and a phase compensation unit. The torque converter has a lock-up clutch. The target transmission ratio calculation unit is configured to calculate a target transmission ratio based on a travelling state. The feedback control unit is configured to perform feedback control based on an actual value indicative of a state of the continuously variable transmission mechanism. The phase compensation unit is configured to perform phase lead compensation of the feedback control based on the travelling state. The phase compensation control unit is configured to halt the phase lead compensation when an unstable travelling state of a vehicle is detected. The phase compensation control unit is further configured to release the lock-up clutch when the phase lead compensation is halted.

公开(公告)号：US11125321B2

公开(公告)日：2021-09-21

申请号：US16860304

申请日：2020-04-28

申请人： AISIN SEIKI KABUSHIKI KAISHA

发明人： Koji Harada ,  Futoshi Hattori ,  Kenji Aoki

IPC分类号： F16H61/00 ,  F16H61/06 ,  B60W10/02 ,  F16D48/02 ,  F16H59/18 ,  F16H59/14

摘要： A gear shift control device for an automatic transmission device includes a transmission including an output unit setting and outputting a target value of the hydraulic pressure to the hydraulic control device. The output unit, when the shift stage is changed from a shift stage to another, increases the target value for a first friction coupling portion in the decoupled state in the shift stage to a first value, reduces to a second value, increases to a third value after the value is reduced to the second value, sets to a fourth value after the value is increased to the third value, and sets to a fifth value after the target value is set to the fourth value, and the output unit sets the fourth value according to magnitude of input torque to the transmission.

公开(公告)号：US11118678B2

公开(公告)日：2021-09-14

申请号：US16612699

申请日：2018-05-09

申请人： ISUZU MOTORS LIMITED

发明人： Tatsuya Ooshima ,  Nobuyuki Nishimura

IPC分类号： F16H61/16 ,  F16H59/44 ,  F16H59/66 ,  F16H59/70 ,  F16H61/02 ,  F16H61/68 ,  F16H59/20 ,  F16H59/18 ,  F16H61/00 ,  F16H59/14 ,  F16H59/36

摘要： This vehicle control device 10 is provided with: a current gear stage selection unit 13 which selects a current gear stage, which is the gear stage of the vehicle in the present travel state; a travel segment determination unit 15 which determines the next travel segment forwards in the direction of travel of the vehicle V; and a shift control unit 17 which, in the case that the current gear stage selection unit 13 has newly selected a target gear stage lower than the current gear stage during travel of the vehicle V in the current gear stage in the current travel segment, if the next travel segment can be traveled in the current gear stage and the amount the vehicle V will lose speed after traveling the current travel segment is less than or equal to a prescribed threshold value, controls shifting of the gear stage such that downshifting from the current gear stage to the target gear stage is suppressed and the current gear stage is maintained. Even in a state in which downshifting is suppressed, if the state of the vehicle the satisfies a prescribed condition, then the shift control unit 17 controls shifting of the gear stage so as to downshift to the target gear stage without suppression of downshifting.

公开(公告)号：US11118677B2

公开(公告)日：2021-09-14

申请号：US16817812

申请日：2020-03-13

申请人： AISIN SEIKI KABUSHIKI KAISHA

发明人： Koji Harada ,  Futoshi Hattori ,  Koichi Saito ,  Kenji Aoki

IPC分类号： F16H59/18 ,  F16H61/00 ,  F16H61/02 ,  F16H59/14 ,  F16H59/36 ,  B60W10/06 ,  B60W10/115 ,  B60W30/19

摘要： A transmission control device is used in an automatic transmission device including a transmission gear having friction coupling portions that are changed between a coupled state and an uncoupled state, and configuring transmission stages corresponding to a combination of the coupled state and the uncoupled state, and a hydraulic control device. The device includes: a determination unit determining a change in the transmission stage; and an output unit setting a target value of the hydraulic pressure, and outputting the target value to the hydraulic control device. In a case where one transmission stage is changed to another, the output unit increases the target value to a first value for a first friction coupling portion in the uncoupled state in the one transmission stage, thereafter, to a second value smaller than the first value and maintaining the uncoupled state, and thereafter, to a third value greater than the second value.

公开(公告)号：US11047473B2

公开(公告)日：2021-06-29

申请号：US16694245

申请日：2019-11-25

申请人： Hyundai Motor Company ,  Kia Motors Corporation

发明人： Seungbum Kim

IPC分类号： B60W30/18 ,  F16H59/18 ,  B60W20/40 ,  B60W10/02 ,  F16H61/00 ,  F02P5/04

摘要： An apparatus configured for controlling starting of engine may include a clutch pedal including an ignition lock switch, a starter, a status detecting unit, an electronic clutch mounted between the engine and a transmission, a clutch controller configured to control coupling and releasing of the electronic clutch, check status of the electronic clutch and generate a clutch status data, and a vehicle controller configured to enter coasting running mode based on the vehicle status data, and, during the coasting running mode, operate the starter and restart the engine based on the clutch status data provided from the clutch controller and a switch status data of the ignition lock switch when a position value of an acceleration pedal included in the vehicle status data is equal to or greater than an acceleration reference value.

公开(公告)号：US10934685B2

公开(公告)日：2021-03-02

申请号：US16031253

申请日：2018-07-10

申请人： KOMATSU LTD.

发明人： Shunsuke Miyamoto ,  Masao Yoshizawa ,  Yasuo Fujiwara

IPC分类号： B60W20/00 ,  E02F9/20 ,  B60K6/445 ,  F16H3/72 ,  B60K6/387 ,  B60W30/182 ,  B60W20/30 ,  B60W10/06 ,  B60W10/08 ,  B60W10/10 ,  F16H59/18 ,  F16H3/44 ,  B60K6/365 ,  E02F9/22 ,  F16H37/10 ,  B60K6/38 ,  F16H61/66 ,  E02F3/28

摘要： A power transmission device of a work vehicle includes a motor control unit that controls first and second motors to keep the transmission speed ratio at a maximum value when a vehicle speed is greater than a second vehicle speed where the transmission speed ratio reaches the maximum value obtainable by the power transmission device, and less than a third vehicle speed where a rotation speed of the second motor reaches a predetermined limit value. A controller increases a rotation speed of an engine from a second rotation speed of the engine when the vehicle speed is greater than the second vehicle speed and less than a third vehicle speed, and increases the rotation speed of the engine from a third rotation speed of the engine when the vehicle speed is greater than the third vehicle speed.

公开(公告)号：US10801613B2

公开(公告)日：2020-10-13

申请号：US16308434

申请日：2017-05-19

申请人： JATCO Ltd ,  NISSAN MOTOR CO., LTD.

发明人： Kohei Kamiya

IPC分类号： F16H61/14 ,  F16D48/06 ,  F16H59/18 ,  F16H61/00

摘要： Provided is a lock-up clutch control device of a vehicle in which a torque converter with a lock-up clutch is disposed between an engine and a transmission. This control device has a coasting capacity learning control section configured to decrease a LU differential pressure command value for the lock-up clutch during accelerator release operation and, when a slip of the lock-up clutch is detected during decrease of the LU differential pressure command value, update the LU differential pressure command value at the time of detection of the slip as a LU differential pressure learning value balanced with a coasting torque. The coasting capacity learning control section is further configured to, when operation of the PTC heater intervenes during coasting capacity learning control, correct the LU differential pressure command value by adding thereto a LU differential pressure correction value that corresponds to an increase of input torque to the lock-up clutch.

公开(公告)号：US10793156B2

公开(公告)日：2020-10-06

申请号：US15757506

申请日：2016-09-27

申请人： JATCO LTD

发明人： Yukifumi Ootsuka ,  Masayoshi Nakasaki ,  Yoshimasa Nishihiro

IPC分类号： B60W30/18 ,  B60W10/02 ,  B60W10/06 ,  B60W10/107 ,  F16H59/48 ,  F16H61/02 ,  F16H63/50 ,  F16H59/50 ,  F02D29/02 ,  F16H61/662 ,  F16H59/36 ,  F02D41/12 ,  F16H59/44 ,  F16H59/54 ,  B60W50/00 ,  F16H59/18 ,  F16H61/00

摘要： A vehicle control device is for a vehicle having a drive source, and an automatic transmission connected to the drive source, the automatic transmission having an engagement element for disconnecting/connecting transmission of a driving force and a variator placed further upstream than the engagement element. The vehicle control device includes first and second control units. The first control unit is configured to execute sailing stop control to stop the drive source and to put the automatic transmission into a neutral state when a sailing stop condition is established. The second control unit is configured to start the drive source and to implement downshifting of the variator when a size of a deceleration level is a prescribed value or greater when the sailing stop control is cancelled due to a prescribed sailing stop cancellation condition among sailing stop cancellation conditions being established, and to engage the engagement element after the downshifting.

公开(公告)号：US10746289B2

公开(公告)日：2020-08-18

申请号：US16325232

申请日：2017-09-08

申请人： DENSO CORPORATION ,  HONDA MOTOR CO., LTD.

发明人： Koji Sakaguchi ,  Masayoshi Iwata ,  Yuichiro Takemori ,  Taizo Mori

IPC分类号： F16H61/12 ,  F16H59/08 ,  F16H61/32 ,  F16H61/24 ,  F16H63/42 ,  F16H59/54 ,  F16H59/18 ,  F16H61/28 ,  F16H61/02 ,  F16H63/38 ,  F16H59/44

摘要： A shift-by-wire system includes an actuator, a detent plate, a detent spring, a control unit, and a display device. The control unit includes a first position learning unit, a second position learning unit, and a power-on determination unit. When the power-on determination unit determines that the power on is the post-instantaneous interruption on while the vehicle power is turned on, the first position learning unit learns the first reference position or the second position learning unit learns the second reference position, (i) in a case where the display device still displays the N-range after the target-range determination unit determines the target range to the R-range while the display device displays the N-range or (ii) in a case where the display device displays the N-range after the target-range determination unit determines the target range to the N-range while the display device displays the R-range.