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：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：US20230339456A1

公开(公告)日：2023-10-26

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 ,  B60W2520/14 ,  B60W2520/20 ,  B60W2520/403 ,  B60W2720/14 ,  B60W2710/083

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.

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：US20240230383A1

公开(公告)日：2024-07-11

申请号：US18610200

申请日：2024-03-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiang Gu ,  Yuzheng Zhuang ,  Donghao Liu ,  Jie Luo ,  Bin Wang

IPC: G01D18/00

CPC classification number: G01D18/00

Abstract: This application provides a parameter calibration method and apparatus that may be applied to vehicles such as an intelligent vehicle, a new energy vehicle, a connected vehicle, and an intelligent driving vehicle. The method includes: obtaining evaluation results of parameter combinations of a plurality of devices, where the evaluation results of the parameter combinations of the plurality of devices are obtained by respectively performing calibration tests by the plurality of devices in a first time period based on the parameter combinations of the plurality of devices; and obtaining at least one adjusted parameter combination based on the evaluation results of the parameter combinations of the plurality of devices.

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.