公开(公告)号：US20230033528A1

公开(公告)日：2023-02-02

申请号：US17964569

申请日：2022-10-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Weimiao YANG ,  Yongsheng ZHANG ,  Donghao LIU ,  Wei ZHANG

IPC: B60T11/224 ,  B60T11/18 ,  B60T11/22

Abstract: A hydraulic adjustment unit of a brake system in a vehicle includes a first fluid reservoir (29), a second fluid reservoir (2), a first oil return pipe (110), and a second oil return pipe (120). The first oil return pipe (110) is connected to wheel cylinders (151, 152) of a vehicle, so that brake fluid in the wheel cylinders (151, 152) of the vehicle is delivered to the first fluid reservoir (29), to depressurize wheels of the vehicle. The second oil return pipe (120) is configured to connect to the wheel cylinders (151, 152) of the vehicle through oil inlet pipes (130, 140) of a brake system, so that the brake fluid in the wheel cylinders (151, 152) of the vehicle is delivered to the second fluid reservoir (2) through the oil inlet pipes (130, 140) of the brake system, to depressurize the wheels of the vehicle.

公开(公告)号：US20240295420A1

公开(公告)日：2024-09-05

申请号：US18664682

申请日：2024-05-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie LUO ,  Donghao LIU ,  Qiang GU ,  Yuzheng ZHUANG ,  Yongsheng ZHANG

IPC: G01D18/00

CPC classification number: G01D18/00

Abstract: Embodiments of this application disclose a calibration method, apparatus, and system, and relate to the calibration field, to improve calibration efficiency of a new energy vehicle and an intelligent vehicle, and reduce calibration costs. A specific solution is as follows: First, an observation signal of a to-be-tested system is obtained. Next, a corresponding performance index is calculated based on the observation signal of the to-be-tested system. Then, an updated calibration parameter is obtained by using an optimization algorithm based on the performance index, a constraint condition, and at least one objective function, where the objective function indicates a function relationship between performance indexes. Finally, the updated calibration parameter is sent to a controller.

公开(公告)号：US20210269018A1

公开(公告)日：2021-09-02

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

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.