公开(公告)号：US20190136971A1

公开(公告)日：2019-05-09

申请号：US15807889

申请日：2017-11-09

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Hari C Perla ,  Joseph W Tatangelo ,  Paul G Otanez ,  Alexander J Severt ,  Virinchi Mallela

IPC分类号： F16H61/662 ,  F16H61/12

CPC分类号： F16H61/6625 ,  F16H59/14 ,  F16H59/70 ,  F16H61/0213 ,  F16H61/12 ,  F16H61/662 ,  F16H2059/147 ,  F16H2059/704

摘要： A control system and method for controlling a continuously variable transmission in a vehicle propulsion system includes measuring a speed ratio of the continuously variable transmission, determining whether the measured speed ratio is drifting away from a commanded speed ratio, and adjusting the commanded speed ratio to a value that is different than a desired speed ratio if the measured speed ratio is drifting away from the commanded speed ratio.

公开(公告)号：US20180320783A1

公开(公告)日：2018-11-08

申请号：US15735072

申请日：2016-06-15

申请人： Scania CV AB

发明人： Johan LINDSTRÖM ,  Mathias BJÖRKMAN ,  Mikael BERGQUIST ,  Niklas PETTERSSON

IPC分类号： F16H61/04 ,  B60K1/02 ,  B60K6/365 ,  B60K6/387 ,  B60K6/40 ,  B60K6/48 ,  B60K6/547 ,  B60W30/18 ,  F16H59/42

CPC分类号： F16H61/0403 ,  B60K1/02 ,  B60K6/365 ,  B60K6/387 ,  B60K6/40 ,  B60K6/48 ,  B60K6/547 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60W20/30 ,  B60W30/18 ,  F16H59/42 ,  F16H61/04 ,  F16H2059/147 ,  F16H2061/0422

摘要： A method for obtaining gear shifting of a vehicle, where the vehicle has a planetary gearing in the drive train, a combustion engine with an output shaft connected to a rotor of a second electric machine and to a first component of the planetary gearing, a first electric machine with a rotor connected to a third component of the planetary gearing and an input shaft of a gearbox connected to a second component of the planetary gearing. The method is started with the components of the planetary gearing interlocked by a locking means, in which they are released during the gear shifting and interlocked again after the gear shifting has been carried out.

公开(公告)号：US20180266547A1

公开(公告)日：2018-09-20

申请号：US15741425

申请日：2016-08-22

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Keisuke OTA ,  Yoshio HASEGAWA

IPC分类号： F16H61/04

CPC分类号： F16H61/04 ,  F16H59/18 ,  F16H59/24 ,  F16H59/40 ,  F16H59/42 ,  F16H59/44 ,  F16H61/08 ,  F16H61/16 ,  F16H2059/147 ,  F16H2061/0444

摘要： An automatic transmission controller is provided, which is capable of reducing occurrence of a shift shock while improving responsiveness of a driving force. An ECU is configured to calculate a target shift time based on an input torque that is input to the automatic transmission when a gear stage is shifted from a current gear stage to a target gear stage spaced two or more stages apart from the current gear stage. The ECU is also configured to: shift the gear stage to an intermediate gear stage between the current gear stage and the target gear stage when the target shift time is not less than a predetermined value; and to shift the gear stage directly to the target gear stage when the target shift time is less than the predetermined value.

公开(公告)号：US10077042B2

公开(公告)日：2018-09-18

申请号：US15180219

申请日：2016-06-13

申请人： FORD GLOBAL TECHNOLOGIES, LLC

发明人： Dennis Craig Reed ,  Joshua Nicholas Dewalt ,  Mary Catherine Farmer ,  Terry Gene Feldpausch ,  Peter Douglas Kuechler

IPC分类号： B60W20/15 ,  B60K6/48 ,  F16H63/50 ,  F16H59/14

CPC分类号： B60W20/15 ,  B60K6/48 ,  B60W2510/0208 ,  B60W2510/10 ,  B60W2710/02 ,  B60W2710/0666 ,  B60W2710/083 ,  F16H63/50 ,  F16H2059/147 ,  F16H2059/148

摘要： A system and method for controlling backlash in a vehicle powertrain includes the step of controlling a torque request of the powertrain with a first control strategy after an occurrence of a backlash predictor and before an occurrence of a backlash. Another step may be employed whereby the torque request is controlled with a second control strategy after the first control strategy and before the occurrence of the backlash such that a torque request level is below a highest torque request level obtained during the first control-strategy.

公开(公告)号：US20180202540A1

公开(公告)日：2018-07-19

申请号：US15865448

申请日：2018-01-09

申请人： ZF Friedrichshafen AG

发明人： Stefan PREBECK

IPC分类号： F16H61/00 ,  F16H61/662 ,  G01L3/10

CPC分类号： F16H61/0003 ,  B60Y2300/1888 ,  B60Y2300/58 ,  B60Y2400/307 ,  F16D2500/7048 ,  F16H59/14 ,  F16H61/6625 ,  F16H2059/147 ,  F16H2061/0012 ,  G01L3/101

摘要： A drive-train of a vehicle with at least a drive motor (1) and a transmission (2) in which at least one torque sensor (6, 6A) is provided for control purposes. The torque sensor (6, 6A) is integrated in a transmission component in order to determine, at the time, the applied torque.

公开(公告)号：US20180149263A1

公开(公告)日：2018-05-31

申请号：US15821188

申请日：2017-11-22

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Yu NAGASATO ,  Hironori ASAOKA ,  Yoshio ITO

IPC分类号： F16H61/00 ,  F16H61/14 ,  F16H61/662 ,  F16H59/14 ,  F16H59/42 ,  F16H59/68 ,  F16H59/74

CPC分类号： F16H61/0025 ,  F16H57/0436 ,  F16H59/14 ,  F16H59/42 ,  F16H59/68 ,  F16H59/70 ,  F16H59/74 ,  F16H61/0031 ,  F16H61/0206 ,  F16H61/143 ,  F16H61/66227 ,  F16H61/66259 ,  F16H2059/147 ,  F16H2059/743 ,  F16H2061/0037

摘要： The hydraulic control device includes: a mechanical variable-capacity oil pump; and an electronic control unit configured to calculate a target discharge volume of the mechanical variable-capacity oil pump using a plurality of parameters of the transmission, and control the mechanical variable-capacity oil pump based on the target discharge volume.

公开(公告)号：US20180119805A1

公开(公告)日：2018-05-03

申请号：US15783266

申请日：2017-10-13

申请人： Ford Global Technologies, LLC

发明人： Stephen Michael CICALA ,  John Randall ARMSTEAD ,  Dongdong Dee LI ,  Alexander Phillip McDONNELL ,  Bradley D. RIEDLE ,  Conor Edward SULLIVAN

IPC分类号： F16H61/12

CPC分类号： F16H61/12 ,  F16H3/66 ,  F16H59/56 ,  F16H59/72 ,  F16H59/78 ,  F16H61/0213 ,  F16H2059/147 ,  F16H2059/148 ,  F16H2059/6807 ,  F16H2059/6823 ,  F16H2061/122 ,  F16H2061/1244 ,  F16H2061/1276 ,  F16H2200/0069 ,  F16H2200/2012 ,  F16H2200/2043 ,  F16H2200/2046 ,  F16H2200/2066 ,  F16H2200/2082

摘要： A vehicle includes a transmission having a first neutral with a first combination of engaged clutches and a second neutral with a second combination of engaged clutches. The second neutral has more engaged clutches than the first neutral. A vehicle controller is programmed to, in response to a request to shift from the first to the second neutral and a failed-on clutch being detected, inhibit the shift to remain in the first neutral.

公开(公告)号：US20180119803A1

公开(公告)日：2018-05-03

申请号：US15726988

申请日：2017-10-06

申请人： Ford Global Technologies, LLC

发明人： Jianping Zhang ,  Jaewon Choi ,  Kendrick Morrison ,  Stephen Michael Cicala ,  Cory Benson LaRoche

IPC分类号： F16H61/06 ,  B60W10/115 ,  B60W30/19

CPC分类号： F16H61/061 ,  B60W10/115 ,  B60W30/19 ,  B60W2050/0008 ,  F16H2059/147

摘要： In a transmission hydraulic control system, a gain control valve may be used to switch between a low gain and a high gain based on line pressure. Line pressure may be controlled as a function of turbine torque. If the gain of a holding element or oncoming element changes during a shift as a result of changing turbine torque, shift quality may degrade. If the gain is set low at the beginning of the shift, the controller limits engine torque to ensure that the line pressure is not increased beyond a level that would cause a gain switch. If the gain is set high at the beginning of a shift, the controller maintains the line pressure high enough to prevent a switch to low gain, even if turbine torque drops.

公开(公告)号：US20180031058A1

公开(公告)日：2018-02-01

申请号：US15593431

申请日：2017-05-12

申请人： SUBARU CORPORATION

发明人： Takahiro YAMAMOTO

IPC分类号： F16D48/06 ,  F16H63/34

CPC分类号： F16D48/06 ,  B60W10/182 ,  F16D2500/10412 ,  F16D2500/1107 ,  F16D2500/3067 ,  F16D2500/30803 ,  F16D2500/31466 ,  F16D2500/3166 ,  F16H59/46 ,  F16H59/54 ,  F16H59/56 ,  F16H59/72 ,  F16H63/3425 ,  F16H63/3458 ,  F16H63/3466 ,  F16H2059/147

摘要： A shift control device includes: a selector configured to receive operation of selecting a shift range of an automatic transmission and output selection information corresponding to the operation, the automatic transmission being configured to convert and output driving force of an engine; a range switch controller configured to switch the shift range in accordance with the selection information; a parking mechanism configured to bring the automatic transmission into a parking state by locking rotation of the automatic transmission; a clutch configured to turn on/off transmission of driving force; a clutch controller configured to control operation of the clutch in accordance with the selection information; and a delay setter configured to set delay time until driving of the parking pawl starts on the basis of rotation speed difference and oil temperature of the automatic transmission when selection information indicating that the parking range is selected is output.

公开(公告)号：US09784367B2

公开(公告)日：2017-10-10

申请号：US15380510

申请日：2016-12-15

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Takaaki Tanaka ,  Nobufusa Kobayashi ,  Masato Yoshikawa

IPC分类号： F16H3/72 ,  F16H61/30 ,  B60K6/365 ,  B60K6/445 ,  B60W10/11 ,  B60W20/00 ,  F16H37/08 ,  F16H3/44 ,  F16H61/00 ,  F16H61/06 ,  F16H59/14

CPC分类号： F16H61/30 ,  B60K6/365 ,  B60K6/445 ,  B60W10/11 ,  B60W20/00 ,  B60W2510/1025 ,  B60W2710/02 ,  B60Y2200/92 ,  B60Y2300/427 ,  F16H3/728 ,  F16H37/084 ,  F16H61/00 ,  F16H2003/445 ,  F16H2059/147 ,  F16H2061/0087 ,  F16H2061/009 ,  F16H2061/064 ,  F16H2200/2007 ,  F16H2200/2041 ,  F16H2200/2066 ,  F16H2200/2082 ,  F16H2342/042 ,  Y10S903/945

摘要： While a vehicle is traveling in a state where any one of gear positions of a mechanical stepped transmission unit is established, until an estimated input torque that is obtained from the equation of motion for an electrical differential unit changes, a hydraulic pressure of a non-engaged intended hydraulic friction engagement device is increased, and a pack end pressure is learned on the basis of the hydraulic pressure at that time. Therefore, irrespective of feedback control, or the like, over motor generators of the electrical differential unit, it is possible to appropriately learn the pack end pressure, so it is possible to appropriately execute hydraulic control over the hydraulic friction engagement devices, that is, engaging and releasing control, or the like, at the time of shifting, irrespective of individual differences of the portions, aging of friction materials, or the like.