Driving motor control method of electric vehicle

Abstract

The invention discloses a driving motor control method of an electric vehicle. The method comprises the following steps: wheel hub motors are mounted in a left steering wheel and a right steering wheel or at the sides of the wheels of the electric vehicle for driving the wheels, and rotating speed sensors are mounted on the steering wheels for detecting real-time speeds of the wheels; and the differential steering of the electric vehicle is realized by using different rotating speeds of the left and right wheels in a wheel hub motor driving mode through an all-wheel active steering control method based on the self-adaptive control theory. As the motors are mounted in the two steering wheels or at the sides of the wheels for driving the wheels, the vehicle structure is simplified to a great extent; and the differential steering is realized by using the different rotating speeds of the left and right wheels, so that a vehicle steering system is not needed, and the production difficulty and the production cost are reduced.

Description

technical field [0001] The invention relates to a method for controlling a driving motor of an automobile, in particular to a method for controlling a driving motor of an electric vehicle. Background technique [0002] In recent years, with the shortage of global oil resources, the increasing air pollution and the improvement of battery technology, opportunities have been brought to the development of pure electric vehicles. Pure electric vehicles are highly sought after by many domestic and foreign automobile manufacturers due to their low noise, zero emissions, and high energy transfer efficiency. General Motors, Ford, Toyota, Honda and other automobile manufacturers have developed their own pure electric vehicle products. However, there are still many problems in the existing pure electric vehicles, which fail to meet the requirements of widespread use. Now, electric vehicles are widely used in low-speed driving fields, such as golf carts, sightseeing cars in scenic spot...

AI Technical Summary

Problems solved by technology

[0003] However, at present, the existing pure electric vehicles all use a single motor as the drive motor, that is, the motor is used to replace the engine, which basically maintains the original structure of the car and cannot give full play to the superior performance of the motor.

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