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/Powertrain With Differential Protection Function, Method, And Electric Vehicle
Abstract

A powertrain with a differential protection function, a control method for the powertrain, and an electric vehicle are provided. This disclosure relates to the field of new energy vehicles, and may be applied to a pure electric vehicle and a hybrid electric vehicle. The powertrain includes a drive motor, a motor control unit, and a differential. The drive motor is configured to drivingly connect to the differential, the differential is configured to drivingly connect to two wheels of the electric vehicle separately, the two wheels are two front wheels or two rear wheels, and the motor control unit is configured to control a torque value output by the drive motor to be less than or equal to a torque limit value, where the torque limit value decreases as a wheel speed difference between the two wheels increases.

Full Text

What is claimed is:

A powertrain with a differential protection function, a control method for the powertrain, and an electric vehicle are provided. This disclosure relates to the field of new energy vehicles, and may be applied to a pure electric vehicle and a hybrid electric vehicle. The powertrain includes a drive motor, a motor control unit, and a differential. The drive motor is configured to drivingly connect to the differential, the differential is configured to drivingly connect to two wheels of the electric vehicle separately, the two wheels are two front wheels or two rear wheels, and the motor control unit is configured to control a torque value output by the drive motor to be less than or equal to a torque limit value, where the torque limit value decreases as a wheel speed difference between the two wheels increases.
Timeline
Filed
04/20/2026
Published
08/27/2026
Granted
Not Available
IPC Codes(2)
B60L 15/20:for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
B60L 3/00:Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption (methods or circuit arrangements for monitoring or controlling batteries or fuel cells B60L 58/00)