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：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.