公开(公告)号：US20240328508A1

公开(公告)日：2024-10-03

申请号：US18573655

申请日：2022-06-21

Applicant: ZF Friedrichshafen AG

Inventor： Mario Steinborn ,  Thea Schlueter ,  Frieder Norrenberg ,  Richard Malínský ,  Otakar Šprdlík ,  Martin Fajfr ,  Karel Veisheipl

IPC: F16H61/12 ,  F16H59/36 ,  F16H59/42 ,  F16H59/48 ,  F16H59/70 ,  F16H61/16 ,  F16H61/70

CPC classification number: F16H61/12 ,  F16H59/42 ,  F16H59/48 ,  F16H59/70 ,  F16H61/16 ,  F16H61/70 ,  F16H2059/366 ,  F16H2061/1224 ,  F16H2061/128 ,  F16H2061/166

Abstract: A method for operating a motor vehicle drive train having a drive aggregate, an automated group transmission connected between the drive aggregate and a drive output, and a disconnect clutch connected between the drive aggregate and the group transmission. The group transmission has a plurality of sub-transmissions, including a main transmission, a splitter group upstream from the main transmission, and a range group downstream from the main transmission. When the disconnect clutch cannot be shifted to carry out a shifting operation in the group transmission, an emergency shifting program is activated. Shifting from a current gear to a target gear is carried out automatically, as a function of input rotation speed of the group transmission or as a function of rotation speed of the drive aggregate, while the disconnect clutch is closed and where the main transmission and/or the range group participate exclusively, but not the splitter group.

公开(公告)号：US12000477B2

公开(公告)日：2024-06-04

申请号：US17816458

申请日：2022-08-01

Applicant: ZF Friedrichshafen AG

Inventor： Christoph Hess ,  Jörg Arnold ,  Jens Weller

IPC: F16H61/14 ,  F16D48/06 ,  F16H59/40 ,  F16H59/44 ,  F16H59/46 ,  F16H59/70 ,  F16H59/36

CPC classification number: F16H61/143 ,  F16D48/06 ,  F16H59/40 ,  F16H59/44 ,  F16H59/46 ,  F16H59/70 ,  F16D2500/10412 ,  F16D2500/3067 ,  F16D2500/30806 ,  F16D2500/30825 ,  F16D2500/3108 ,  F16H2059/366

Abstract: The invention relates to the actuation of a converter lock-up clutch (44) of a hydrodynamic torque converter (4) in a vehicle drive-train by means of a safety function where, in addition to a driving strategy function, the safety function can actuate the converter lock-up clutch (44) by issuing a clutch actuation command. For this purpose, at least one rotation speed at the torque converter (4) is monitored. If the monitored rotation speed is below a rotation speed threshold, the safety function commands an actuation of the converter lock-up clutch (44) in its opening direction.

公开(公告)号：US11873892B2

公开(公告)日：2024-01-16

申请号：US17767072

申请日：2020-12-16

Applicant: GREAT WALL MOTOR COMPANY LIMITED

Inventor： Likang Wei ,  Yadan Li ,  Chaojie Huang ,  Peng Luo ,  Hongpeng Wang

IPC: F16H61/02 ,  F16H59/14 ,  F16H59/44 ,  F16H59/68 ,  F16H59/74 ,  F16H61/12 ,  F16H61/16 ,  F16H59/36

CPC classification number: F16H61/0213 ,  F16H59/14 ,  F16H59/44 ,  F16H59/68 ,  F16H59/74 ,  F16H61/12 ,  F16H61/16 ,  F16H2059/147 ,  F16H2059/366 ,  F16H2061/0234 ,  F16H2061/168

Abstract: A method and a system for controlling a gear of the two-speed gearbox and a vehicle is provided. The method for controlling a gear of a two-speed gearbox includes: determining a first target gear of the gearbox reflecting a current driving demand of a user according to a current vehicle-speed; and performing a gear intervention control of the gearbox based on at least one of the following aspects: position information of a drive gear-lever, a rotation-speed of a drive motor of a vehicle, and gear fault information of the gearbox, to shift the first target gear of the gearbox to a second target gear of the gearbox that matches with real-time operation conditions of the vehicle.

公开(公告)号：US20230406318A1

公开(公告)日：2023-12-21

申请号：US18038064

申请日：2021-11-24

Applicant: Scania CV AB

Inventor： Jonas UDD ,  Anders KJELL ,  Sofie WISÉN SVANSTRÖM

IPC: B60W30/19 ,  B60W30/18 ,  B60W10/06 ,  B60W50/10 ,  B60W10/10 ,  B60W10/02 ,  F16H63/50 ,  F16H63/46

CPC classification number: B60W30/19 ,  B60W30/18063 ,  B60W10/06 ,  B60W50/10 ,  B60W10/10 ,  B60W10/02 ,  F16H63/502 ,  F16H63/46 ,  B60W2710/0666 ,  B60W2710/0644 ,  B60W2510/0638 ,  F16H2312/06 ,  F16H2059/366

Abstract: A method for, during creep mode, performing gearshift in a vehicle powertrain comprising a combustion engine, a gearbox, and a clutch is provided. The method comprises, in response to a request for gearshift, disconnecting the combustion engine from the gearbox by opening the clutch. The method further comprises, when the combustion engine is disconnected from the gearbox, shifting the gearbox and controlling the speed of the combustion engine to a target speed. Said target speed constitutes a combustion engine speed corresponding a desired combustion engine torque for completing a torque ramp during closing of the clutch. The method further comprises connecting the combustion engine to the gearbox by closing the clutch. A control device configured to perform the method and a vehicle comprising the control device are also provided.

公开(公告)号：US11815164B2

公开(公告)日：2023-11-14

申请号：US17964122

申请日：2022-10-12

Applicant: Motiomax Oy

Inventor： Timo Lehto

IPC: F16H3/54 ,  F16H59/40 ,  F16H59/42 ,  F16H59/50 ,  F16H59/72 ,  F16H61/04 ,  F16H61/32 ,  F16H59/36

CPC classification number: F16H3/54 ,  F16H59/40 ,  F16H59/42 ,  F16H59/50 ,  F16H59/72 ,  F16H61/0403 ,  F16H61/32 ,  F16H2059/366 ,  F16H2061/0422 ,  F16H2200/0043 ,  F16H2200/2005 ,  F16H2200/2035

Abstract: Disclosed is a configurable seamless shift gearbox (100, 506). Configurable seamless shift gearbox comprises input shaft (102, 508) and output shaft (104, 510); gear arrangement (106) engaged between input and output shafts, configured to drive torque from input to output shaft. Gear arrangement comprises first gear member (202), second gear member (108), third gear member (118), and fourth gear member (110A, 110B) that rotationally arranges third gear member thereon; first clutch (112) configured to variably engage and disengage with fourth gear member to transfer input torque from input shaft to gear arrangement; and second clutch (114) configured to variably engage and disengage with second gear member to transfer input torque from gear arrangement to output shaft, wherein first and second clutch selectively engage and disengage with fourth and second gear member, respectively, at same time to enable variable gear ratios for providing a seamless torque from input to output shaft.

公开(公告)号：US11746892B2

公开(公告)日：2023-09-05

申请号：US17586168

申请日：2022-01-27

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Jin Sung Kim

IPC: F16H59/14 ,  F16H59/42 ,  F16H59/70 ,  F16H59/46 ,  F16H59/44 ,  F16H61/00 ,  F16H59/36

CPC classification number: F16H59/141 ,  F16H59/42 ,  F16H59/44 ,  F16H59/46 ,  F16H59/70 ,  F16H2059/147 ,  F16H2059/366 ,  F16H2059/465 ,  F16H2059/706 ,  F16H2061/009 ,  F16H2061/0093

Abstract: An apparatus of controlling a gear shifting of a vehicle, and a method thereof, to improving shift quality by minimizing the jerk generated in a shifting process of the vehicle, includes storage that stores a Gaussian process (GP) model on which machine learning is completed, and a controller that detects a change amount of engine torque and a change amount of an engagement-side clutch torque based on the GP model, and controls the gear shifting of the vehicle according to the change amount of the engine torque and the change amount of the engagement-side clutch torque.

公开(公告)号：US20180362045A1

公开(公告)日：2018-12-20

申请号：US15627311

申请日：2017-06-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： CHAD T. ZAGORSKI ,  MICHAEL G. CARPENTER

IPC: B60W30/18 ,  F16H61/02 ,  B60W10/11 ,  B60W10/18

CPC classification number: B60W30/18109 ,  B60W10/11 ,  B60W10/182 ,  B60W2510/0208 ,  B60W2510/0638 ,  B60W2510/101 ,  B60W2520/10 ,  B60W2710/1005 ,  B60W2710/186 ,  B60W2720/10 ,  B60Y2300/70 ,  B60Y2302/00 ,  B60Y2400/4024 ,  F16H59/44 ,  F16H59/54 ,  F16H59/56 ,  F16H59/70 ,  F16H61/0213 ,  F16H2059/366 ,  F16H2059/743 ,  F16H2061/0234

Abstract: Vehicles, systems, and methods for shifting a manual transmission into neutral during autonomous braking are provided. An exemplary system for shifting a vehicle into neutral during autonomous braking includes a manual transmission for transferring power from an engine to a differential using gears manually selected by a gear selector. Also, the system includes an actuator mounted to the vehicle and to the gear selector. Further, the system includes a controller coupled to the actuator and configured to direct the actuator to force the gear selector into neutral during an autonomous braking event.

公开(公告)号：US20180354516A1

公开(公告)日：2018-12-13

申请号：US15771159

申请日：2016-10-04

Applicant: ZF Friedrichshafen AG

Inventor： Peter Spoerl ,  Johannes Kemler ,  Franz-Josef Schuler

IPC: B60W30/18 ,  B60W30/19 ,  F16H61/02 ,  F16H61/16

CPC classification number: B60W30/18072 ,  B60W10/06 ,  B60W10/11 ,  B60W30/19 ,  B60W2030/1809 ,  B60W2510/0638 ,  B60W2510/0647 ,  B60W2510/0652 ,  B60W2710/1005 ,  F16H59/46 ,  F16H59/48 ,  F16H59/70 ,  F16H61/0213 ,  F16H61/16 ,  F16H2059/366 ,  F16H2059/462 ,  F16H2061/0234 ,  F16H2061/163 ,  Y02T10/76

Abstract: A method for operating a motor vehicle, the motor vehicle including a prime mover (1), a transmission (2), and a driven end (3), wherein the transmission (2) is an automatic or automated transmission and is connected between the prime mover (1) and the driven end (3). The method includes activating a sailing mode of the motor vehicle depending on at least one operating condition of the motor vehicle; performing a gear select interlock in the transmission (2), while maintaining the sailing mode, when the sailing mode is active; and deactivating the sailing mode is subsequently depending on at least one operating condition of the motor vehicle. The gear select interlock is implemented in the transmission (2) depending on a rotational speed of the prime mover (1) and depending on synchronous speeds of the gears of the transmission (2).

公开(公告)号：US20180328483A1

公开(公告)日：2018-11-15

申请号：US15916326

申请日：2018-03-09

Applicant: MOTIVE POWER INDUSTRY CO., LTD.

Inventor： KAI-WEN CHENG

IPC: F16H61/664 ,  F16H61/04

CPC classification number: F16H61/6646 ,  F16H59/44 ,  F16H61/0437 ,  F16H61/16 ,  F16H61/6649 ,  F16H2059/366 ,  F16H2059/506 ,  F16H2061/6617 ,  F16H2061/6643 ,  F16H2300/02 ,  F16H2306/14 ,  F16H2306/30

Abstract: An electronic continuously variable transmission (ECVT) system applicable to a motorcycle includes a first speed sensor, second speed sensor, continuously variable transmission (CVT) and control unit. The control unit receives a user control signal and accordingly controls a speed-changing state of the CVT. While the motorcycle is operating in a manual-operation mode, the control unit predicts, according to the user control signal, a first speed signal sent from the first speed sensor, and a second speed signal sent from the second speed sensor, whether the next gear indicated by the shift request signal will cause the motorcycle to move unsteadily. If so, the control unit ignores the shift request signal and refuses to perform gear shifting. If not, the control unit sends at least a shift control signal to the CVT so that the CVT performs gear shifting.

公开(公告)号：US20180259064A1

公开(公告)日：2018-09-13

申请号：US15761280

申请日：2016-09-21

Applicant: DANA LIMITED

Inventor： T. NEIL MCLEMORE

IPC: F16H59/36 ,  F16H15/28 ,  F16H61/662

CPC classification number: F16H59/36 ,  F16H15/28 ,  F16H61/662 ,  F16H61/66259 ,  F16H2059/366 ,  F16H2063/504

Abstract: Described herein is a control system for a vehicle with an infinitely variable transmission (IVT) having a ball planetary variator (CVP), providing a smooth and controlled operation. In some embodiments, the vehicle is a fork lift truck. An operator commands a brake pedal, an accelerator pedal, a direction switch (or gear selector), and a hydraulic lever, which are evaluated by the control system to determine a current operating state of the vehicle. Some operating states include, forward drive, reverse drive, vehicle braking, automatic deceleration, inching, power reversal, vehicle hold, and park, among others. The control system is configured to determine a commanded engine speed based at least in part on the hydraulic lever signal.