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Control system of magnetic gear composite motor vehicle steering system and electric vehicle

A composite motor and steering system technology, applied in the control system, motor control, AC motor control, etc., can solve problems such as unstable control of the steering system

Active Publication Date: 2020-01-07
SUZHOU VOCATIONAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Control system of magnetic gear composite motor vehicle steering system and electric vehicle
  • Control system of magnetic gear composite motor vehicle steering system and electric vehicle
  • Control system of magnetic gear composite motor vehicle steering system and electric vehicle

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Embodiment Construction

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0060] see figure 1 It is a schematic diagram of the control system of the magnetic gear compound motor vehicle steering system provided by the embodiment of the present invention. The control 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. in,

[0061] The encoder is used to detect the rotational speed of the ma...

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PUM

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Abstract

An embodiment of the invention provides a control system of a magnetic gear composite motor vehicle steering system and an electric vehicle. The system comprises an encoder, a displacement estimationdevice, a difference calculation device, a self-adaptive diagonal recursion cerebellum model controller, a current controller and a PWM inverter. The adaptive diagonal recursion cerebellum model controller outputs control quantity, which is output to a magnetic gear composite motor through the current controller and the PWM inverter; mixed signals of a load and the magnetic gear composite motor are transmitted to the encoder; the encoder detects the rotating speed of the magnetic gear composite motor; the displacement estimation device calculates estimated angular velocity displacement, wherein the estimated angular velocity displacement is compared with reference angular velocity displacement, and the comparison result is transmitted to the self-adaptive diagonal recursion cerebellum model controller to realize closed-loop tracking control, so that an actual rotor angle of the magnetic gear composite motor is controlled to be able to track a set rotation angle instruction; unstable factors in transverse movement of the vehicle can be effectively suppressed; and the system has high 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P23/14H02P23/28H02P27/08B62D5/04B62D6/00B62D117/00
CPCB62D5/046B62D5/0472B62D6/00H02P23/0022H02P23/14H02P27/08H02P2205/01H02P23/28
Inventor 杨益飞
Owner SUZHOU VOCATIONAL UNIV
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