公开(公告)号：US20230265919A1

公开(公告)日：2023-08-24

申请号：US18112817

申请日：2023-02-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  AISIN CORPORATION

Inventor： Guodong Tan ,  Masayasu Mizobuchi ,  Masayuki Baba ,  Yu Nagasato ,  Yoshio Hasegawa ,  Kensuke Wada ,  Sari Uchiyama

IPC: F16H61/02 ,  F16H61/686

CPC classification number: F16H61/0206 ,  F16H61/686 ,  F16H2061/0209

Abstract: A hydraulic control system includes a linear solenoid valve, an ON-OFF solenoid valve and a hydraulically-operated frictional engagement device. A first hydraulic pressure is regulated by the linear solenoid valve within a predetermined pressure-regulation control range, and is supplied to the frictional engagement device. In a state in which the frictional engagement device is placed in a predetermined engaged state based on the first hydraulic pressure, a second hydraulic pressure, which is higher than the pressure-regulation control range, is supplied from the ON-OFF solenoid valve to the frictional engagement device, such that the frictional engagement device is placed in a fully engaged state with a high engaging torque based on the second hydraulic pressure.

公开(公告)号：US11788618B2

公开(公告)日：2023-10-17

申请号：US18112817

申请日：2023-02-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  AISIN CORPORATION

Inventor： Guodong Tan ,  Masayasu Mizobuchi ,  Masayuki Baba ,  Yu Nagasato ,  Yoshio Hasegawa ,  Kensuke Wada ,  Sari Uchiyama

IPC: F16H61/02 ,  F16H61/686

CPC classification number: F16H61/0206 ,  F16H61/686 ,  F16H2061/0209

Abstract: A hydraulic control system includes a linear solenoid valve, an ON-OFF solenoid valve and a hydraulically-operated frictional engagement device. A first hydraulic pressure is regulated by the linear solenoid valve within a predetermined pressure-regulation control range, and is supplied to the frictional engagement device. In a state in which the frictional engagement device is placed in a predetermined engaged state based on the first hydraulic pressure, a second hydraulic pressure, which is higher than the pressure-regulation control range, is supplied from the ON-OFF solenoid valve to the frictional engagement device, such that the frictional engagement device is placed in a fully engaged state with a high engaging torque based on the second hydraulic pressure.

公开(公告)号：US20230246582A1

公开(公告)日：2023-08-03

申请号：US17606510

申请日：2020-02-06

Applicant: Mitsuba Corporation ,  Toyota Jidosha Kabushiki Kaisha

Inventor： Masahiro Ishijima ,  Masahiro Fueki ,  Shinji Shibuya ,  Guodong Tan ,  Taiki Ishida ,  Tomohiro Chimbe

IPC: H02P29/00 ,  F16D48/00

CPC classification number: H02P29/0027 ,  F16D48/00 ,  F16D2048/0227

Abstract: An electric oil pump for automobile transmission clutch engagement includes: a temperature sensor that measures a temperature of oil supplied to an oil supply destination relating to clutch engagement of an automobile transmission; an oil pump drive motor; a current determination part that determines a current value output to the oil pump drive motor to a predetermined current value determined such that the oil pump drive motor is capable of being driven without stopping in a case where the temperature is equal to or less than a predetermined temperature at which a torque of the oil pump drive motor becomes smaller than a load of the oil pump drive motor; and an oil pump that supplies oil to the oil supply destination by the oil pump drive motor being driven based on the determined current value.

公开(公告)号：US12214774B2

公开(公告)日：2025-02-04

申请号：US18075906

申请日：2022-12-06

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Guodong Tan ,  Takao Oki ,  Yoshio Hasegawa ,  Masashi Ikemura

IPC: B60W20/40 ,  B60W10/02 ,  B60W10/06 ,  B60W30/188

Abstract: The control device of the vehicle performs slip control for engaging the connection and disconnection clutch as an instruction hydraulic pressure for engaging the connection and disconnection clutch by the hydraulic control mechanism after the internal combustion engine is started by the starter, as an instruction hydraulic pressure for maintaining the speed of the internal combustion engine at a higher speed than a lower limit speed for avoiding the stop of the internal combustion engine. Further, the control device of the vehicle performs engagement completion control of raising an instruction hydraulic pressure for engaging the connection and disconnection clutch from an instruction hydraulic pressure in the slip control to an instruction hydraulic pressure for completing engagement of the connection and disconnection clutch when a difference between the speed of the internal combustion engine and the speed of the electric motor becomes smaller than a preset threshold value.

公开(公告)号：US11702064B2

公开(公告)日：2023-07-18

申请号：US17815028

申请日：2022-07-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Guodong Tan ,  Atsushi Onomoto

IPC: B60W20/40 ,  B60W10/02 ,  B60W10/06 ,  B60W10/30 ,  B60W10/08

CPC classification number: B60W20/40 ,  B60W10/023 ,  B60W10/06 ,  B60W10/08 ,  B60W10/30 ,  B60W2710/027 ,  B60W2710/083

Abstract: A hybrid vehicle includes an engine and an electric motor as driving power sources, a clutch of a hydraulic type provided between the engine and the electric motor, an electric oil pump that supplies hydraulic pressure to the clutch, a mechanical oil pump that interlocks with a rotation of the electric motor and supplies hydraulic pressure to the clutch, and a controller that controls the electric motor and the electric oil pump.

公开(公告)号：US11473460B2

公开(公告)日：2022-10-18

申请号：US17342711

申请日：2021-06-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Guodong Tan ,  Masahide Ichikawa ,  Tetsuya Yamaguchi

IPC: F01M9/00 ,  F01M1/16 ,  F01M1/02

Abstract: A controller controls a motor-driven oil pump of a vehicle. The vehicle includes an engine, a mechanical oil pump, a battery, a motor-driven oil pump driven by a driving voltage applied by the battery, and a hydraulic device. The controller includes processing circuitry. The processing circuitry controls the driving voltage in a stop period during which the engine automatically stops and automatically restarts. The stop period includes a first period starting when the engine automatically stops and continuing until cranking starts and a second period starting when the cranking starts and continuing until the engine automatically restarts. The driving voltage in the first period is less than the driving voltage in the second period.

公开(公告)号：US11073199B2

公开(公告)日：2021-07-27

申请号：US16929156

申请日：2020-07-15

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  AISIN AW CO., LTD

Inventor： Guodong Tan ,  Shinichi Ito ,  Yukihiko Ideshio ,  Masashi Ikemura ,  Takashi Iijima ,  Masamichi Yamaguchi ,  Keisuke Tanaka ,  Tetsuya Yamaguchi ,  Ryota Yoshimoto

IPC: F16H57/027 ,  F16H61/00

Abstract: A breather device that communicates an inside of a case with an outside of the case in a vertical direction includes a cylindrical body having a hollow portion that extends in the vertical direction, a stopper inserted in the hollow portion, and a blocking body that is located in a space defined by the stopper in the hollow portion, and blocks a communicating hole provided in a lower part of the cylindrical body as viewed in the vertical direction. The communicating hole ceases to be blocked when the pressure inside the case exceeds a first predetermined value, and the blocking body moves upward in the vertical direction in the space.