公开(公告)号：US20230052334A1

公开(公告)日：2023-02-16

申请号：US17790155

申请日：2021-01-19

Applicant: GREAT WALL MOTOR COMPANY LIMITED

Inventor： Yinlei WANG ,  Tong KANG ,  Wenchao LING ,  Baogang WANG ,  Weifeng DENG ,  Xiu LIU

IPC: H02J7/00 ,  H02J7/14

Abstract: The present disclosure provides a method and apparatus for controlling a voltage of an electric machine, applied to a vehicle having an electricity-generation-starting-up integrated electric machine, which relates to the technical field of vehicle controlling. The method includes: when the vehicle is in a voltage-controlling mode, acquiring a current battery voltage, a current battery electric current and an electric-current limit value of the vehicle; according to the battery voltage, determining an initial target voltage; according to a difference between the electric-current limit value and the battery electric current, determining a superposing-voltage value; based on the superposing-voltage value and the initial target voltage, determining a target controlling voltage; and based on the target controlling voltage, controlling the battery voltage of the vehicle.

公开(公告)号：US20230050845A1

公开(公告)日：2023-02-16

申请号：US17790312

申请日：2021-01-13

Applicant: GREAT WALL MOTOR COMPANY LIMITED

Inventor： Shuai ZHANG ,  Shujiang CHEN ,  Wentao HOU ,  Qing ZHAO ,  Xiao CHANG ,  Tong KANG ,  Jiaxin SUN ,  Wenchao LING ,  Weifeng DENG

IPC: B60L15/20 ,  B60L7/26 ,  B60T8/26 ,  B60T8/52

Abstract: The method includes: when the vehicle satisfies a one-pedal activating condition, controlling the vehicle to enter a one-pedal-function activating mode; when the vehicle enters the one-pedal-function activating mode and satisfies a parking-controlling-function activating condition, acquiring current-vehicle-speed information, road-slope information and a first electric-motor recovering torque; based on the current-vehicle-speed information and the road-slope information, calculating to obtain a parking torque; acquiring a first torque difference between the parking torque and the first electric-motor recovering torque; and performing pressure buildup to the vehicle based on the first torque difference, to control the vehicle to complete a parking operation.