公开(公告)号：US12203543B2

公开(公告)日：2025-01-21

申请号：US18501183

申请日：2023-11-03

Applicant: BRP-ROTAX GMBH & CO. KG

Inventor： Roman Schmied ,  Michael Kaar

IPC: F16H59/46 ,  F16H59/44 ,  F16H59/48 ,  F16H59/50 ,  F16H61/16

Abstract: A method for controlling an automatic transmission of a vehicle. The method includes determining a torque of an engine of the vehicle; performing at least one transmission operation comprising actuating a clutch of the transmission by increasing or decreasing a pressure of transmission fluid routed to the clutch; during actuating: determining an input speed and output speed of the clutch; determining that the clutch is slipping; while the clutch is slipping, recording the pressure of transmission fluid routed to the clutch; calculating a torque transmitted by the clutch; associating the pressure of the transmission fluid routed to the clutch with the torque transmitted by the clutch to generate a clutch pressure-torque pairing; iteratively recording the clutch pressure-torque pairing for torque values; continuously calculating an adaptive pressure-torque function of the clutch based on clutch pressure-torque pairings; and controlling the transmission based on the adaptive pressure-torque function of the clutch.

公开(公告)号：US20240328507A1

公开(公告)日：2024-10-03

申请号：US18704502

申请日：2022-11-03

Applicant: ZF FRIEDRICHSHAFEN AG

Inventor： Rico GLÖCKNER ,  Jan DÖRING ,  Johannes KUGLER

IPC: F16H61/02 ,  F16H59/44 ,  F16H59/48 ,  F16H59/50 ,  F16H59/66 ,  F16H59/78 ,  F16H61/16

CPC classification number: F16H61/0213 ,  F16H59/44 ,  F16H59/48 ,  F16H59/50 ,  F16H59/66 ,  F16H59/78 ,  F16H61/16 ,  F16H2061/022

Abstract: A traction drive system for a work machine, including at least one electric motor, a transmission, and a controller. The controller is configured to select a gear ratio of the transmission depending on a change to be expected in a motor output of the at least one electric motor. The change to be expected in the motor output is conditional on a change in the gear ratio of the transmission. The change to be expected in the motor output is determined on the basis of at least one operating parameter of the work machine.

公开(公告)号：US20240188477A1

公开(公告)日：2024-06-13

申请号：US18079348

申请日：2022-12-12

Applicant: CNH Industrial America LLC

Inventor： Nicholas Umlauf ,  Brian Hartman ,  Pawel Kuros ,  Bryan Nannet

IPC: A01B71/06 ,  F16H59/50 ,  F16H61/00

CPC classification number: A01B71/06 ,  F16H59/50 ,  F16H61/00 ,  F16H2061/0087

Abstract: An agricultural vehicle includes a driveline, an interface, and a control system. The driveline includes an engine, a transmission, and a power take off (PTO). The interface is configured to removably couple an implement with the agricultural vehicle. The implement configured to perform an agricultural function. The control system includes processing circuitry configured to obtain an indication of a type of the implement that is removably coupled with the agricultural vehicle. The processing circuitry is also configured to determine a profile for at least the transmission based on the type of the implement that is removably coupled with the agricultural vehicle. The profile defines an operating parameter for at least the transmission such that the transmission operates in a specific manner for the type of the implement. The processing circuitry is also configured to operate at least the transmission according to the operating parameter of the profile.

公开(公告)号：US20240141987A1

公开(公告)日：2024-05-02

申请号：US17975106

申请日：2022-10-27

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Cory Benson LaRoche ,  Bradley Dean Riedle ,  Stephen Michael Cicala ,  Jianping Zhang

IPC: F16H61/28 ,  F16H59/40 ,  F16H59/50

CPC classification number: F16H61/2807 ,  F16H59/40 ,  F16H59/50 ,  F16H2059/506

Abstract: A method is proposed to complete a power-on upshift while a vehicle encounters wheel slip conditions such as driving in loose sand. The wheels slip conditions may be detected based on a maximum rate of change of an output shaft exceeding a threshold. In response to the wheel slip conditions, one or more shift parameters may be adjusted to bias the shift toward a tie-up and decrease the chance of a flare. These modified shift parameters may include an increased stroke pressure, a delayed off-going clutch release timing, and an increased ratio change capacity.

公开(公告)号：US20240042869A1

公开(公告)日：2024-02-08

申请号：US18492104

申请日：2023-10-23

Applicant: DENSO CORPORATION

Inventor： Akihiro HARADA ,  Seiji NAKAYAMA ,  Shigeru KAMIO

IPC: B60L15/20 ,  F16H63/34 ,  F16H59/50 ,  F16H59/66 ,  F16H63/38

CPC classification number: B60L15/20 ,  F16H63/3466 ,  F16H59/50 ,  F16H59/66 ,  F16H63/38 ,  F16H2059/663

Abstract: A vehicle control device includes an actuator drive control section that controls drive of an actuator, a main motor drive control section that controls drive of a main motor, and a stagnation determination section. The stagnation determination section determines a stagnation of the actuator based on a detected value of a sensor unit that detects a physical quantity that changes according to a drive state of the actuator. When performing a meshing surface pressure reduction control for reducing a meshing surface pressure generated at the meshing point between a parking gear and a parking lever by driving the main motor, the main motor drive control section decreases a main motor torque which is a torque of the main motor based on the detected value of the sensor unit.

公开(公告)号：US20230235819A1

公开(公告)日：2023-07-27

申请号：US18156356

申请日：2023-01-18

Applicant: Honda Motor Co., Ltd.

Inventor： Yurina MORIMOTO ,  Taichi KITAMURA ,  Shinichiro WATANABE ,  Toshimi KANEKO

IPC: F16H61/16 ,  B60R22/48 ,  B60Q9/00 ,  F16H59/44 ,  F16H59/54 ,  F16H59/50

CPC classification number: F16H61/16 ,  B60Q9/00 ,  B60R22/48 ,  F16H59/44 ,  F16H59/50 ,  F16H59/54 ,  B60R2022/4883

Abstract: A vehicle control system is provided. The vehicle control system includes a shift-by-wire device for shifting a shift gear of a speed variator mounted in a vehicle according to a requirement of an electrical signal; a vehicle speed detecting member for detecting a vehicle speed of the vehicle; a seat belt detecting member for detecting whether a seat belt provided in the vehicle is fastened or taken off; a door open/close member for detecting whether a door provided in the vehicle is opened or closed; a presence detecting member for detecting a presence state of a passenger in the vehicle; and an automatic parking control device for controlling the shift-by-wire device to shift the shift gear to a park gear when output results of one of the door open/close member and the presence detecting member, the vehicle speed detecting member, and the seat belt detecting member satisfy predetermined conditions.

公开(公告)号：US20210301917A1

公开(公告)日：2021-09-30

申请号：US17210477

申请日：2021-03-23

Applicant: HONDA MOTOR CO., LTD.

Inventor： Satoshi KONO ,  Fumitaka ABE

IPC: F16H59/08 ,  B60K35/00 ,  F16H59/50 ,  F16H59/74 ,  F16H61/18

Abstract: A driver is enabled to, even if a range selected by the driver and an actual range of the vehicle are different from each other, correctly recognize the actual range of the vehicle without occurrence of disagreement between an indicated range and the actual range of the vehicle. A display means is capable of indicating a range irrespective of a rotation operation of a shift member, and a range of the vehicle is capable of being switched to the range irrespective of the rotation operation of the shift member; and an instruction to the display means and an instruction to switch the range of the vehicle are provided from either one of first control means for indication control or second control means for vehicle range switching control.

公开(公告)号：US10746294B2

公开(公告)日：2020-08-18

申请号：US16320533

申请日：2017-07-27

Applicant: JATCO LTD ,  Nissan Motor Co., Ltd.

Inventor： Naoyasu Ikeda ,  Geunseok Ryu

IPC: F16H61/662 ,  F16H61/02 ,  F16H59/40 ,  F16H59/50 ,  F16H59/70

Abstract: A control device for a continuously variable transmission includes a belt type continuously variable transmission and a controller. The controller is configured to calculate an actual gear shift ratio based on rotation speed sensor values from a primary rotation speed sensor and a secondary rotation speed sensor, and to perform gear shift ratio control using feedback control to converge the actual gear shift ratio to a target gear shift ratio. The controller is further configured to stop calculation of the actual gear shift ratio when one of the rotation speed sensor values is less than a first threshold value determined based on a lower limit value of sensor detection accuracy, and stop calculation of the actual gear shift ratio even when one of the rotation speed sensor values is the first threshold value or greater, when a deceleration level of the drive wheel is a prescribed deceleration level or greater.

公开(公告)号：US10731753B2

公开(公告)日：2020-08-04

申请号：US16206244

申请日：2018-11-30

Applicant: SUBARU CORPORATION

Inventor： Tsuyoshi Shinohara ,  Musashi Murakami ,  Kenichiro Okada ,  Shinichiro Kojima ,  Atsushi Fujie ,  Shintaro Kato ,  Takahiro Yamamoto

IPC: F16H61/02 ,  B60K17/344 ,  B60K17/02 ,  F16H3/54 ,  F16H59/58 ,  F16D25/00 ,  F16H59/46 ,  F16H59/50 ,  F16H59/44 ,  F16H59/18 ,  F16H59/14

Abstract: An all-wheel-drive-vehicle controller includes: a drive gear coupled to a driving source; a driven gear meshed with the drive gear and coupled to main and sub driving-wheel axle shafts transmitting torques to main and sub driving wheels, respectively; a transfer clutch interposed between the driven gear and the sub-driving-wheel axle shaft and adjusting the torque transmitted to the sub driving wheel; a first determination unit determining whether a first condition in which a torque applied to the drive gear is substantially zero is satisfied; a second determination unit determining whether a second condition in which hydraulic pressure is applied to the transfer clutch and a torque applied to the driven gear is substantially zero is satisfied; and a control unit controlling a torque adjuster to adjust the torque applied to either one of the drive gear and the driven gear if the first and second conditions are satisfied.

公开(公告)号：US10718428B2

公开(公告)日：2020-07-21

申请号：US15563664

申请日：2016-06-10

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Yasuhiro Okabe ,  Yusuke Masuda ,  Daisuke Sekine

IPC: F16H61/12 ,  F02D45/00 ,  F16H59/50 ,  F16H59/68 ,  G06F12/16 ,  F02D41/22 ,  G06F11/07 ,  F16H61/00 ,  F02D41/24 ,  F02D41/26 ,  G06F11/08 ,  F02D41/02

Abstract: A controller for a vehicle transmission includes a storage part that stores data and a control part that executes processing by using the data stored in the storage part. The storage part stores a plurality of control processes of the vehicle transmission. The storage part further comprises a table including a start address and an end address of each of a first software program and a second software program as duplicated software programs, and the control unit executes the second software program instead of the first software program if the abnormal address is located between the first address and the end address of the first software program, and no abnormal address is located between the first address and the end address of the second software program.