公开(公告)号：US20240351574A1

公开(公告)日：2024-10-24

申请号：US18759757

申请日：2024-06-28

Applicant: BYD COMPANY LIMITED

Inventor： Rujie LIU ,  Chunsheng WANG ,  Boliang XU ,  Xinli CHEN

IPC: B60W20/40 ,  B60W10/06 ,  B60W10/30 ,  B60W50/00

CPC classification number: B60W20/40 ,  B60W10/06 ,  B60W10/30 ,  B60W2050/0083 ,  B60W2400/00 ,  B60W2510/087 ,  B60W2510/30 ,  B60W2710/0644 ,  B60W2710/0677 ,  B60W2710/30

Abstract: A method for cooling a driving motor with a locked rotor of a vehicle is disclosed. The vehicle includes the driving motor, an engine, an engine end oil pump, and a cooling flow path. The engine is configured to drive the engine end oil pump, and the cooling flow path connects the engine end oil pump to the driving motor. The method includes: in response to determining that a driving mode of the vehicle is an electric mode and that the vehicle meets a locked rotor motor trigger condition, and detecting that a current temperature of the driving motor is greater than an auxiliary cooling starting temperature of the engine, controlling the engine to start to cause the engine end oil pump to drive a coolant in the cooling flow path to cool the driving motor.