Magnetic gear compound motor vehicle steering system control system and electric vehicles

Abstract

An embodiment of the present invention provides a control system of a magnetic gear composite motor vehicle steering system and an electric vehicle. The system includes an encoder, a displacement estimation device, a difference calculation device, an adaptive diagonal recursive cerebellar model controller, a current controller, and a PWM inverter. The adaptive diagonal recursive cerebellar model controller outputs the control value to the magnetic gear compound motor through the current controller and PWM inverter, and then transmits the mixed signal of the load and the magnetic gear compound motor to the encoder, and the encoder detects the magnetic The rotation speed and displacement estimation device of the gear compound motor calculates the estimated angular velocity displacement, and after making a difference with the reference angular velocity displacement, it is transmitted to the adaptive diagonal recursive cerebellar model controller to realize closed-loop tracking control, so as to realize the control of the actual rotor angle of the magnetic gear compound motor It can track the set rotation angle command, effectively suppress the unstable factors in the lateral movement of the vehicle, and has strong robustness to external interference.

Description

technical field [0001] The invention relates to the field of electric vehicles, and more specifically, relates to a control system of a magnetic gear composite motor vehicle steering system and the electric vehicle. Background technique [0002] An electric vehicle refers to a vehicle powered by a vehicle-mounted power supply, driven by a motor to drive the wheels, and conforming to the requirements of road traffic and safety regulations. Traffic cases in recent years have shown that the system stability of electric vehicles is an important reason for traffic accidents. Unstable vehicle dynamic lateral behavior creates instability factors that lead to loss of vehicle control. [0003] The magnetic gear compound motor vehicle steering system of electric vehicles is a nonlinear and time-varying system. The parameter changes of the entire system, external force interference and friction will affect the accuracy of system control. The current control method controls the steeri...

AI Technical Summary

Problems solved by technology

The current control method controls the steering system as a whole, ignoring external disturbances (such as road irregularities, backlash caused by drive gears, and disturbances caused by gusts, etc.), resulting in unstable control of the steering system.

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