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：US20240199045A1

公开(公告)日：2024-06-20

申请号：US18591600

申请日：2024-02-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yu Zhang ,  Yongsheng Zhang ,  Weimiao Yang ,  Shangwei Lv

IPC: B60W50/10 ,  B60W30/18

CPC classification number: B60W50/10 ,  B60W30/18109 ,  B60W2510/1005 ,  B60W2510/186 ,  B60W2520/10 ,  B60W2540/10 ,  B60W2540/12 ,  B60W2540/21 ,  B60W2540/215

Abstract: A vehicle control method includes obtaining a first user instruction, where the first user instruction instructs to enable an automatic vehicle hold function; controlling, based on the first user instruction, an automatic vehicle hold system to switch to a wake-up state; obtaining status information of a vehicle; and switching a status of the automatic vehicle hold system based on the status information of 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：US20240174206A1

公开(公告)日：2024-05-30

申请号：US18431700

申请日：2024-02-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Wang ,  Weimiao Yang ,  Yongsheng Zhang ,  Yuhao Lu

IPC: B60T8/40

CPC classification number: B60T8/4081

Abstract: Embodiments of this application provide a brake system and a control method. The brake control system includes: a master cylinder (1), a booster (2), at least one first control valve (11 and 12), at least one second control valve (21, 22, 23, and 24), at least one third control valve (31, 32, 33, and 34), at least one first interface (4), a first control unit (91), and a second control unit (92). The brake system provided in embodiments of this application has a plurality of redundancy designs, to ensure that the brake system can still meet a plurality of brake function requirements of a vehicle when a controller or a key solenoid valve fails, so as to improve security of the brake system, ensure a pedal feeling of a driver, and bring more stable and comfortable driving experience to the driver.

公开(公告)号：US12157444B2

公开(公告)日：2024-12-03

申请号：US17985486

申请日：2022-11-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongsheng Zhang ,  Weimiao Yang ,  Wei Zhang

IPC: B60T13/14 ,  B60T11/20 ,  B60T17/22

Abstract: This disclosure is applicable to intelligent automobiles, new energy automobiles, conventional automobiles, or the like. In an example embodiment, a fluid outlet pipe of a first hydraulic chamber is configured in segments on a push rod support portion and a push rod.
When a piston is located at an inner stop point of a piston stroke, a first hydraulic adjustment port located on the push rod support portion communicates with a second hydraulic adjustment port located on the push rod, and when the piston is located at a position other than the inner stop point in the piston stroke, the first hydraulic adjustment port does not communicate with the second hydraulic adjustment port.

公开(公告)号：US20240132037A1

公开(公告)日：2024-04-25

申请号：US18400381

申请日：2023-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weimiao Yang ,  Shangwei Lv ,  Donghao Liu ,  Yongsheng Zhang

IPC: B60T13/14 ,  B60T8/171 ,  B60T13/68 ,  B60T17/22

CPC classification number: B60T13/145 ,  B60T8/171 ,  B60T13/148 ,  B60T13/686 ,  B60T17/22 ,  B60T2270/413

Abstract: A braking system includes a main braking subsystem and a redundant braking subsystem, where the main braking subsystem includes a brake master cylinder, and the redundant braking subsystem includes a redundant boosting apparatus and a third isolation valve. The redundant boosting apparatus includes a first input end and a first output end. The first input end is configured to input a brake fluid, and the first output end of the redundant boosting apparatus is hydraulically connected to the brake master cylinder.

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.