公开(公告)号：US11780421B2

公开(公告)日：2023-10-10

申请号：US17562169

申请日：2021-12-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Norman K. Bucknor ,  Chunhao J. Lee ,  Dongxu Li ,  Lei Hao ,  Chengwu Duan

IPC: F16H45/02 ,  B60W10/02 ,  B60W50/06 ,  B60W10/08 ,  B60W30/18

CPC classification number: B60W10/026 ,  B60W10/024 ,  B60W10/08 ,  B60W50/06 ,  F16H45/02 ,  B60W30/18027 ,  B60W2510/083 ,  B60W2510/1015 ,  B60W2520/04 ,  B60W2520/105 ,  B60W2540/10 ,  B60W2710/024 ,  B60W2710/081 ,  B60W2710/083 ,  F16H2045/0215

Abstract: A method for controlling an electric drive unit (EDU) having a motor-driven torque converter includes receiving a request signal indicative of a requested output torque of the EDU, and operating the motor at a target motor speed using the requested output torque. The target motor speed minimizes system losses while achieving the requested output torque. When the requested output torque remains below a calibrated threshold and a turbine speed is less than a corner speed of the motor, a torque converter clutch (TCC) transitions to or remains in a locked state. The controller commands the TCC to transition to an unlocked state to reach the target motor speed, thereby selectively enabling torque multiplication. A powertrain system includes a driven load and the EDU. A computer readable storage medium may include executable instructions for performing the method.

公开(公告)号：US20190031180A1

公开(公告)日：2019-01-31

申请号：US15660589

申请日：2017-07-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chunhao J. Lee ,  Neeraj S. Shidore ,  Norman K. Bucknor ,  K V Hebbale ,  Farzad Samie ,  Dongxu Li

IPC: B60W20/19 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W20/40 ,  B60K6/48 ,  B60K6/40 ,  B60K6/383 ,  B60K6/387

CPC classification number: B60W20/19 ,  B60K6/383 ,  B60K6/387 ,  B60K6/40 ,  B60K6/48 ,  B60K2006/4825 ,  B60W10/02 ,  B60W10/026 ,  B60W10/06 ,  B60W10/08 ,  B60W20/40 ,  B60W30/09 ,  B60W30/14 ,  B60W2510/0208 ,  B60W2510/0283 ,  B60W2510/0638 ,  B60W2520/105 ,  B60W2540/10 ,  B60W2710/021 ,  B60W2710/024 ,  B60W2710/0644 ,  B60W2710/0666 ,  B60W2710/083 ,  B60W2720/106 ,  B60Y2200/92 ,  Y10S903/913 ,  Y10S903/914 ,  Y10S903/93 ,  Y10S903/946 ,  Y10S903/951

Abstract: A low-voltage hybrid powertrain system for a vehicle includes an engine that is coupled via an engine disconnect clutch to an input member of the transmission, and a low-voltage electric machine is coupled to the transmission. The powertrain system operates in an electric vehicle (EV) mode with the engine in an OFF state and with the engine disconnect clutch in an open/deactivated state. When an output torque request indicates a command for vehicle acceleration, the electric machine is controlled to generate torque in response to the output torque request and the engine is simultaneously cranked and started. Upon starting, the engine operates in a speed control mode to activate the engine disconnect clutch. The engine and the low-voltage electric machine are controlled to generate torque in response to the output torque request when the engine disconnect clutch is activated.

公开(公告)号：US20180281800A1

公开(公告)日：2018-10-04

申请号：US15925775

申请日：2018-03-20

Applicant: Honda Motor Co.,Ltd.

Inventor： Yuya TACHIBANADA ,  Yutaka ISHIKAWA ,  Shunsuke YOSHIDA ,  Tomoaki MUKAI

IPC: B60W30/18 ,  F16H63/34 ,  F16H61/14 ,  B60W10/196 ,  B60W10/02

CPC classification number: B60W30/18054 ,  B60W10/026 ,  B60W10/196 ,  B60W2510/101 ,  B60W2710/024 ,  B60W2710/188 ,  F16H3/66 ,  F16H61/143 ,  F16H63/3483 ,  F16H63/486 ,  F16H2200/0069 ,  F16H2200/2012 ,  F16H2200/2046 ,  F16H2200/2048 ,  F16H2200/2066 ,  F16H2200/2082 ,  F16H2312/12

Abstract: Provided is a hydraulic pressure control device. A hydraulic pressure control device includes a solenoid valve configured to supply hydraulic pressure to switch between an engaged state and a released state of a lock-up clutch, and a transmission control device configured to control the solenoid valve. The solenoid valve supplies hydraulic pressure to switch between a parking locked state and a parking released state of a parking lock mechanism, in addition to switching of the lock-up clutch.

公开(公告)号：US10053099B2

公开(公告)日：2018-08-21

申请号：US15169268

申请日：2016-05-31

Applicant: GM Global Technology Operations LLC

Inventor： Dara Monajemi ,  Matthew D. Whitton ,  Brian M. Porto

IPC: B60W30/19 ,  B60W30/18 ,  B60W10/02 ,  B60W10/06 ,  B60W10/115 ,  F16H3/66

CPC classification number: B60W30/18072 ,  B60W10/02 ,  B60W10/026 ,  B60W10/06 ,  B60W10/115 ,  B60W30/19 ,  B60W2510/0216 ,  B60W2510/0638 ,  B60W2510/1005 ,  B60W2510/182 ,  B60W2710/021 ,  B60W2710/024 ,  B60W2710/0644 ,  B60W2710/0666 ,  B60W2710/1005 ,  F16H3/66 ,  F16H61/0204 ,  F16H2200/006 ,  F16H2200/2012 ,  F16H2200/2043 ,  F16H2306/00 ,  Y02T10/76

Abstract: A transmission is provided having a control module, an input member, an output member, four planetary gear sets, a plurality of interconnecting members, and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes. The control module includes a control logic sequence for performing a coasting downshift of the transmission.

公开(公告)号：US09988036B2

公开(公告)日：2018-06-05

申请号：US14478194

申请日：2014-09-05

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Bernard D. Nefcy ,  Daniel Scott Colvin ,  Felix Nedorezov

IPC: B60W20/10 ,  B60L15/20 ,  B60W10/02 ,  B60W10/08 ,  B60W30/20 ,  B60K6/387 ,  B60K6/547 ,  B60W20/19 ,  B60W20/17 ,  B60K6/48

CPC classification number: B60W10/026 ,  B60K6/387 ,  B60K6/547 ,  B60K2006/4825 ,  B60W10/08 ,  B60W20/10 ,  B60W20/17 ,  B60W20/19 ,  B60W30/20 ,  B60W2030/203 ,  B60W2510/087 ,  B60W2510/244 ,  B60W2710/024 ,  B60W2710/025 ,  B60W2710/083 ,  Y02T10/6252 ,  Y02T10/7258 ,  Y10S903/93

Abstract: A vehicle includes an engine, a traction motor, a clutch, and a controller. The clutch selectively couples the traction motor to wheels. The controller, in response to a torque output by the fraction motor achieving a torque limit while operating to partially satisfy a demand for driveline damping and while the clutch is locked, slips the clutch to completely satisfy the demand for driveline damping.

公开(公告)号：US20180015928A1

公开(公告)日：2018-01-18

申请号：US15547855

申请日：2015-12-16

Applicant: JATCO Ltd ,  NISSAN MOTOR CO., LTD.

Inventor： Takashi KOGUCHI ,  Sho OKUTANI ,  Makoto KOMATSU ,  Toshiaki NODA ,  Takuichiro INOUE ,  Yuuji NAGASE ,  Hiroyasu TANAKA ,  Hideshi WAKAYAMA

IPC: B60W30/19 ,  F16H61/04 ,  B60W10/02 ,  B60W10/10 ,  F16H61/02 ,  F16H59/36 ,  F16H59/14 ,  F16H59/18 ,  F16H59/44

CPC classification number: B60W30/19 ,  B60W10/026 ,  B60W10/10 ,  B60W2510/0638 ,  B60W2510/0661 ,  B60W2520/10 ,  B60W2540/10 ,  B60W2540/103 ,  B60W2540/106 ,  B60W2710/024 ,  B60W2710/1005 ,  F16H59/141 ,  F16H59/18 ,  F16H59/20 ,  F16H59/42 ,  F16H59/44 ,  F16H61/0213 ,  F16H61/04 ,  F16H61/14 ,  F16H61/16 ,  F16H61/684 ,  F16H2059/147 ,  F16H2059/183 ,  F16H2059/366

Abstract: An automatic transmission control device implements a downshift by disengagement of a clutch that is engaged in a gear position before the downshift. It is determined whether an engine state is in a predetermined region in which a change of an engine torque per a change of an accelerator pedal opening is smaller than that in another region, and the engine torque is within a predetermined range, and an engine rotational speed is within a predetermined range. It is determined whether an operating state is in a predetermined state of accelerator operation in which the accelerator pedal opening is larger than a predetermined value, and an accelerator pedal opening change rate has an absolute value smaller than a predetermined value. The downshift is inhibited in response to determination that the engine state is in the predetermined region and the operating state is in the predetermined state of accelerator operation.

公开(公告)号：US20180015926A1

公开(公告)日：2018-01-18

申请号：US15210631

申请日：2016-07-14

Applicant: Ford Global Technologies, LLC

Inventor： Ralph Wayne Cunningham ,  Ross Dykstra Pursifull

IPC: B60W30/18 ,  B60W10/06 ,  B60W10/11

CPC classification number: B60W30/18136 ,  B60W10/026 ,  B60W10/06 ,  B60W10/11 ,  B60W50/10 ,  B60W2030/18081 ,  B60W2420/42 ,  B60W2510/0233 ,  B60W2510/0241 ,  B60W2540/10 ,  B60W2540/106 ,  B60W2540/30 ,  B60W2550/308 ,  B60W2710/024 ,  B60W2710/0666

Abstract: Methods and systems are provided for adjusting powertrain torque in a vehicle based on driver intent. Driver intent is inferred based on foot motion inside a foot well monitored via a foot well region sensor and changes in clearance outside the vehicle monitored via a range sensor. By adjusting powertrain torque based on operator foot motion and traffic movements outside the vehicle, frequency of lash transitions can be reduced and lash transition initiation can be adjusted based on expected changes in torque demand.

公开(公告)号：US20170240178A1

公开(公告)日：2017-08-24

申请号：US15432231

申请日：2017-02-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keigo MATSUBARA ,  Ayumu SAGAWA

IPC: B60W30/19 ,  B60W10/115 ,  B60W10/02

CPC classification number: B60W30/19 ,  B60W10/026 ,  B60W10/115 ,  B60W2710/024 ,  B60W2710/1083 ,  F16H61/14 ,  F16H61/143 ,  F16H61/28 ,  F16H2061/0012 ,  F16H2061/0015 ,  F16H2061/2853

Abstract: An electronic control unit starts shift initial oil pressure control after the completion of lockup initial oil pressure control when shift control is performed during the performance of lockup control, the electronic control unit starts shift initial oil pressure control after the completion of lockup initial oil pressure control. Besides, the electronic control unit places priority on the shift control and starts the lockup initial oil pressure control after the completion of the shift initial oil pressure control, when the lockup control is performed during the performance of the shift control. Therefore, the shift initial oil pressure control and the lockup initial oil pressure control are prevented from occurring at the same time when the shift control and the lockup control are performed at the same time.

公开(公告)号：US20170197623A1

公开(公告)日：2017-07-13

申请号：US15324885

申请日：2015-05-27

Applicant: JATCO LTD ,  NISSAN MOTOR CO., LTD.

Inventor： Tomoaki HONMA ,  Yuta SUZUKI ,  Itaru SHINOHARA ,  Hiroshi SEKIYA ,  Hiromu OGINO

IPC: B60W30/18 ,  B60W10/107 ,  B60W10/02

CPC classification number: B60W30/18054 ,  B60W10/026 ,  B60W10/107 ,  B60W2520/04 ,  B60W2520/10 ,  B60W2710/024 ,  B60W2710/1005 ,  F16H61/14 ,  F16H61/662 ,  F16H2061/0087

Abstract: A control device for a continuously variable transmission includes: a lock-up clutch of a torque converter which is arranged to connect and disconnect a power transmission between a power source and the driving wheel; a control section configured to output a hydraulic pressure command value, and to control a transmission gear ratio of the continuously variable transmission and an engagement state of the lock-up clutch in accordance with a traveling state of a vehicle; a learning control section configured to perform a learning control of the engagement state of the lock-up clutch with respect to the control command value; an oil vibration sensing section configured to sense an oil vibration; and a learning control prohibiting section configured to prohibit the learning control when the oil vibration sensing section senses the oil vibration.

公开(公告)号：US20170158198A1

公开(公告)日：2017-06-08

申请号：US15336577

申请日：2016-10-27

Applicant: Fuji Jukogyo Kabushiki Kaisha

Inventor： Yoshitaka TAKAHASHI

IPC: B60W30/18 ,  B60W10/107 ,  B60W10/02

CPC classification number: B60W30/18 ,  B60W10/026 ,  B60W10/107 ,  B60W2540/103 ,  B60W2550/142 ,  B60W2710/024 ,  B60W2710/1005 ,  F16H59/18 ,  F16H59/20 ,  F16H61/143 ,  F16H2061/146

Abstract: A vehicle control apparatus for a vehicle including an automatic transmission having a torque converter provided with a lock-up clutch, the vehicle control apparatus including a kick-down controller that performs kick-down control to change a transmission ratio to a low side and to increase a number of engine revolutions based on a kick-down request in accordance with an accelerator operation; and a lock-up controller that performs lock-up disengagement control based on the kick-down request to set the lock-up clutch to a disengaged state according to meeting of a disengagement condition. When the kick-down request not during the kick-down control is called a normal kick-down request and the kick-down request during the kick-down control is called a second-time kick-down request, the lock-up controller performs lock-up disengagement control according to the second-time kick-down request based on the disengagement condition which is more eased than the disengagement condition used for the normal kick-down request.