公开(公告)号：US20200086877A1

公开(公告)日：2020-03-19

申请号：US16694256

申请日：2019-11-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongsheng Zhang ,  Wei Zhang ,  Biao Jin

IPC: B60W30/18 ,  B60W40/105 ,  B60W50/038

Abstract: An acceleration slip regulation method includes determining a current control phase of a vehicle in an acceleration slip regulation state, determining a current road surface adhesion coefficient of the vehicle, determining, based on the current control phase and the current road surface adhesion coefficient, maximum torque allowed by a road surface, obtaining demand torque received by a drive motor of the vehicle and a wheel slip rate of the vehicle, and outputting adaptive feedforward torque for acceleration slip regulation based on the maximum torque allowed by the road surface, the demand torque, and the wheel slip rate, where the adaptive feedforward torque is used to perform the acceleration slip regulation on the vehicle.

公开(公告)号：US11465628B2

公开(公告)日：2022-10-11

申请号：US16694256

申请日：2019-11-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongsheng Zhang ,  Wei Zhang ,  Biao Jin

IPC: B60W30/18 ,  B60W40/105 ,  B60W50/038

Abstract: An acceleration slip regulation method includes determining a current control phase of a vehicle in an acceleration slip regulation state, determining a current road surface adhesion coefficient of the vehicle, determining, based on the current control phase and the current road surface adhesion coefficient, maximum torque allowed by a road surface, obtaining demand torque received by a drive motor of the vehicle and a wheel slip rate of the vehicle, and outputting adaptive feedforward torque for acceleration slip regulation based on the maximum torque allowed by the road surface, the demand torque, and the wheel slip rate, where the adaptive feedforward torque is used to perform the acceleration slip regulation on the vehicle.

公开(公告)号：US20240359669A1

公开(公告)日：2024-10-31

申请号：US18672249

申请日：2024-05-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongsheng Zhang ,  Weimiao Yang ,  Suoping Wu ,  Biao Jin ,  Fasong Que

IPC: B60T8/17 ,  B60T7/12 ,  B60T13/14 ,  B60T13/68 ,  H02K7/102

CPC classification number: B60T8/17 ,  B60T13/142 ,  B60T13/686 ,  H02K7/102 ,  B60T7/12 ,  B60T2201/02 ,  B60T2270/10 ,  B60T2270/20 ,  B60T2270/30 ,  B60T2270/402 ,  B60T2270/413

Abstract: A brake system includes a reservoir, a master cylinder module, a brake pedal, a push rod, a first pressure control unit, a second pressure control unit, a first electronic control unit (ECU), a second ECU, and a redundant ECU. The first ECU is configured to control a brake actuator in the first pressure control unit, the second ECU is configured to control a brake actuator in the second pressure control unit, and the redundant ECU is configured to control at least one brake actuator in the first pressure control unit and/or at least one brake actuator in the second pressure control unit.

公开(公告)号：US20240174207A1

公开(公告)日：2024-05-30

申请号：US18431430

申请日：2024-02-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weimiao Yang ,  Yongsheng Zhang ,  Yuhao Lu ,  Biao Jin ,  Shangwei Lv

IPC: B60T13/14 ,  B60T8/171 ,  B60T8/172 ,  B60T13/68

CPC classification number: B60T13/146 ,  B60T8/171 ,  B60T8/172 ,  B60T13/147 ,  B60T13/686 ,  B60T2270/402 ,  B60T2270/413

Abstract: Embodiments of this application provide a hydraulic apparatus, a brake system, and a control method. The brake system provided in embodiments of this application includes a master cylinder, a first booster, and a second booster. The brake system provided in embodiments of this application can implement rich braking functions by using the first booster or the second booster. In addition, the brake system provided in embodiments of this application has a multi-redundancy design. This can ensure that the brake system can still meet a plurality of braking function requirements of a vehicle when a controller or a key solenoid valve fails, improve safety of the brake system, ensure pedal feeling of a driver, and bring more stable and comfortable driving experience to the driver, which is suitable for brake systems of intelligent and electric vehicles.

公开(公告)号：US20230053728A1

公开(公告)日：2023-02-23

申请号：US18045157

申请日：2022-10-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Biao Jin ,  Weimiao Yang ,  Yongsheng Zhang

IPC: B60W60/00

Abstract: In a method for moving a vehicle out of a parking area, the vehicle obtains map information of the parking area and determines a current parking space of the vehicle and an exit location of the parking area. The vehicle determines a plurality of target departure routes from the current parking space to the exit location, and identifies blocking vehicles on the target departure routes that blocks it from reaching the exit. The vehicle estimates the preferability of each of the target departure routes based on a number of blocking vehicles on the target departure route and a difficulty level of removing the blocking vehicles from the target departure route. The vehicle then selects from the target departure routes a preferred departure route, and transmits requests to remove the blocking vehicles off the preferred departure route.