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：US20240182014A1

公开(公告)日：2024-06-06

申请号：US18436857

申请日：2024-02-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xin Zhang ,  Yuhao Lu ,  Yongsheng Zhang

IPC: B60T17/22 ,  G01D5/14

CPC classification number: B60T17/22 ,  G01D5/145

Abstract: A hydraulic braking apparatus, a travel sensor, and a vehicle are provided. The hydraulic braking apparatus includes: a hydraulic valve block; a master cylinder housing disposed on one side of the hydraulic valve block, where a master cylinder part is disposed inside the master cylinder housing, and the master cylinder part includes a piston, a push rod, and a magnet component; a control module disposed on another side of the hydraulic valve block, where the control module includes a control substrate and a connector electrically connected to the control substrate; and a travel sensor fastened to the inside of the hydraulic valve block and configured to detect movement of the magnet component to determine a movement amount of the piston.

公开(公告)号：US11468715B2

公开(公告)日：2022-10-11

申请号：US16510289

申请日：2019-07-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhentong Liu ,  Yongsheng Zhang ,  Wei Zhang

IPC: G07C5/00 ,  G01M17/007 ,  G07C5/02 ,  G07C5/08 ,  H04L67/10

Abstract: A cloud-based vehicle fault diagnosis method includes receiving monitoring data uploaded by a vehicle; extracting eigenvectors of the monitoring data from the monitoring data; storing the eigenvectors of the monitoring data based on classification using, as a label, a part or a functional system of the vehicle from which the monitoring data comes; and performing, based on a support vector machine algorithm, fault diagnosis in parallel on the eigenvectors stored based on the classification.

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：US12086165B2

公开(公告)日：2024-09-10

申请号：US17939438

申请日：2022-09-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhentong Liu ,  Yongsheng Zhang ,  Wei Zhang

IPC: G07C5/00 ,  G01M17/007 ,  G06F16/28 ,  G06F18/20 ,  G07C5/02 ,  G07C5/08 ,  H04L67/10

CPC classification number: G06F16/285 ,  G01M17/007 ,  G06F18/20 ,  G07C5/008 ,  G07C5/02 ,  G07C5/0841 ,  H04L67/10

Abstract: A cloud-based vehicle fault diagnosis method includes receiving monitoring data uploaded by a vehicle; extracting eigenvectors of the monitoring data from the monitoring data; storing the eigenvectors of the monitoring data based on classification using, as a label, a part or a functional system of the vehicle from which the monitoring data comes; and performing, based on a support vector machine algorithm, fault diagnosis in parallel on the eigenvectors stored based on the classification.

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：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：US20230356700A1

公开(公告)日：2023-11-09

申请号：US18356847

申请日：2023-07-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guangxin Jia ,  Yuhao Lu ,  Yongsheng Zhang

IPC: B60T8/40

CPC classification number: B60T8/4081

Abstract: The integrated brake apparatus includes a first housing and a second housing, where a first cylinder body of a brake master cylinder and the first housing are integrally formed; a motor disposed on the first housing; a pump whose pump housing is integrally formed with the first housing; a valve apparatus that is disposed in the second housing and is configured to control opening/closing of an oil passage between the brake master cylinder and a wheel brake and an oil passage between the pump and the wheel brake; and an electronic control unit configured to control the motor and the valve apparatus. The first housing, the second housing, and the electronic control unit are sequentially arranged in a vehicle width direction.

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.