Verfahren und Vorrichtung zur Motorkühlungssteuerung, Vorrichtung und Speichermedium

Details

Veröffentlichungs-Nr.

EP4773482

Anmeldetag

28. Juni 2024

Veröffentlichung

3. April 2025

Rechtsraum

EP

IPC

H02K9/19

Abstract

The present application discloses a motor cooling control method and apparatus, a device, and a storage medium. The method comprises: on the basis of the torque of a motor and the rotation speed of the motor, determining target heat dissipation power; on the basis of a current oil-water temperature difference and the target heat dissipation power, determining a contour line corresponding to the target heat dissipation power, the contour line being used for representing the target heat dissipation power at different oil flow rates and different water flow rates; on the basis of the contour line, determining an amount of change in the water flow rate corresponding to a current oil flow rate and an amount of change in the oil flow rate corresponding to a current water flow rate; on the basis of the smaller of the amount of change in the water flow rate and the amount of change in the oil flow rate, determining a target oil flow rate and a target water flow rate; and on the basis of the target oil flow rate, controlling the rotation speed or the duty ratio of an electronic oil pump, and on the basis of the target water flow rate, controlling the rotation speed or the duty ratio of an electronic water pump. By means of the above solution, the oil-water temperature difference, the oil flow rate, and the water flow rate can be finely controlled, so that the heat dissipation power meets the cooling requirements of the motor, and precise heat dissipation according to requirements is achieved, thereby reducing the power consumption of an electric driving system and an entire vehicle.

Anmelder

Firma

Dongfeng Motor Group Co., Ltd.

Land

🇨🇳 China

Fachgebiete