公开(公告)号：US20220219661A1

公开(公告)日：2022-07-14

申请号：US17657222

申请日：2022-03-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongsheng Zhang ,  Donghao Liu ,  Xiaokang Liu ,  Wei Zhang

IPC: B60T13/16 ,  B60T13/68 ,  B60T8/171 ,  B60T8/88 ,  B60T7/04

Abstract: The technology of this application relates to a brake system of a vehicle, a vehicle, and a control method for a brake system. In the brake system, a first control valve is used to connect a first brake pipe and a second brake pipe, so that when the first control valve is in a closed state, the first brake pipe is connected to the second brake pipe, and brake fluid in the two brake pipes can flow in the two brake pipes, thereby helping improve redundancy performance of the brake system.

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：US20240278759A1

公开(公告)日：2024-08-22

申请号：US18650959

申请日：2024-04-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xin Zhang ,  Yuhao Lu ,  Yongsheng Zhang

IPC: B60T13/66 ,  B60T7/04

CPC classification number: B60T13/662 ,  B60T7/042

Abstract: A braking apparatus includes a hydraulic block, a master cylinder part, and a travel sensor. The hydraulic block is provided with a first groove and a second groove. The second groove extends in a first direction. The master cylinder part is located in the second groove and is in sliding contact with the second groove. The master cylinder part in the second groove is internally provided with a permanent magnet. The travel sensor is located in the first groove and is fixedly coupled to the hydraulic block, and is configured to detect a movement amount of the permanent magnet.

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：US20230347860A1

公开(公告)日：2023-11-02

申请号：US18350340

申请日：2023-07-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wentao Ma ,  Yongsheng Zhang ,  Mingze Ling

IPC: B60T17/22 ,  B60T13/14 ,  B60T13/62

CPC classification number: B60T17/222 ,  B60T13/142 ,  B60T13/62

Abstract: A hydraulic brake system includes a pressurizing assembly that is configured to output brake fluid to a brake fluid transmission assembly under control of a controller. The brake fluid transmission assembly is configured to connect the pressurizing assembly to a brake control assembly or a brake assembly under control of the controller to exhaust gas in the assembly connected to the pressurizing assembly.

公开(公告)号：US11731611B2

公开(公告)日：2023-08-22

申请号：US17326006

申请日：2021-05-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Donghao Liu ,  Yongsheng Zhang ,  Wei Zhang

IPC: B60W30/045 ,  B60W40/103 ,  B60W40/114

CPC classification number: B60W30/045 ,  B60W40/103 ,  B60W40/114 ,  B60W2520/06 ,  B60W2520/10 ,  B60W2520/14 ,  B60W2520/20 ,  B60W2520/403 ,  B60W2710/18 ,  B60W2720/403

Abstract: A vehicle stability control method and a vehicle stability control device are provided. The method may be applied to an intelligent automobile field such as intelligent driving or autonomous driving, and is used to control lateral stability of a front axis and rear axis distributed driven vehicle. In this method, a yawing movement of the vehicle is considered, and an additional yawing moment for maintaining lateral stability of the vehicle is provided by compensating for front-axis and rear-axis slip ratios, to control lateral stability of the vehicle and therefore improve stability of the vehicle during driving.

公开(公告)号：US11639178B2

公开(公告)日：2023-05-02

申请号：US17186734

申请日：2021-02-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ting Teng ,  Yongsheng Zhang ,  Guangyi Wang

IPC: B60W40/114 ,  B60W30/02 ,  B60W50/00

Abstract: Embodiments of this application disclose a vehicle control method and device, where the method includes: calculating a longitudinal force interference compensation torque and a lateral force interference compensation torque of a vehicle when a flat tire occurs in the vehicle; calculating a feedback control torque of the vehicle; determining an additional yaw moment based on the longitudinal force interference compensation torque, the feedback control torque, and the lateral force interference compensation torque; and controlling, based on the additional yaw moment, a wheel in which the flat tire occurs.

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.

公开(公告)号：US20240208516A1

公开(公告)日：2024-06-27

申请号：US18600374

申请日：2024-03-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Donghao Liu ,  Jie Luo ,  Yongsheng Zhang

IPC: B60W50/02 ,  G06N3/02

CPC classification number: B60W50/0205 ,  G06N3/02 ,  B60W2050/021 ,  B60W2050/0215 ,  B60W2520/105 ,  B60W2520/125 ,  B60W2520/14 ,  B60W2520/20 ,  B60W2520/28

Abstract: This application provides a vehicle status parameter estimation method and apparatus, and relates to the field of automotive control technologies. The method includes: obtaining driving status data of a vehicle, a first process status x, and a first process covariance Q; determining a second process covariance Q(k) and a first measurement covariance R(k) based on the driving status data of the vehicle; obtaining a first measurement value yh of a vehicle sensor; and determining a vehicle status parameter of the vehicle based on the first measurement value yh, the first process status x, the first process covariance Q, the second process covariance Q(k), and the first measurement covariance R(k).

公开(公告)号：US12017642B2

公开(公告)日：2024-06-25

申请号：US18342677

申请日：2023-06-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie Luo ,  Donghao Liu ,  Yongsheng Zhang ,  Mingze Ling

IPC: B60W30/045 ,  B60W10/08 ,  B60W10/184

CPC classification number: B60W30/045 ,  B60W10/08 ,  B60W10/184 ,  B60W2510/20 ,  B60W2520/14 ,  B60W2520/20 ,  B60W2520/403 ,  B60W2710/083 ,  B60W2710/18 ,  B60W2720/14 ,  B60W2720/403

Abstract: In a method for front-rear driving torque distribution of a vehicle, a controlling apparatus determines an expected status parameter existing during steering of a vehicle based on a wheel angle of the vehicle. The controlling apparatus determines a current correction yawing moment based on an actual status parameter existing during the steering of the vehicle and the expected status parameter, and determines a mapping relationship between a correction yawing moment and a torque distribution coefficient based on the wheel angle and acceleration information of the vehicle. The controlling apparatus then determines a torque distribution coefficient of the vehicle based on the current correction yawing moment and the mapping relationship, and determines front and rear axle driving torques of the vehicle based on the torque distribution coefficient of the vehicle.