A magnetic suspension hub motor control system

Abstract

A magnetic suspension hub motor control system is provided. the driver intent is judged by the driver intent judging module VCU, DSP control chip is then driven to obtain that position of the currentmotor rotor by using a Hall sensor, judging the current required driving torque, sending a control command to a high-voltage power supply, supplying an alternating current to the driving winding of the magnetic levitation hub motor, causing the driving winding to generate a rotating magnetic field, generating a driving force of the magnetic levitation hub motor, and causing the permanent magnet rotor to rotate to drive a wheel; At that same time, the high-voltage pow supply of the suspension DSP control chip provides the correspond alternating current to the suspension winding of the magneticsuspension hub motor, so that the magnetic field generated by the suspension winding is always the same as the magnetic field of the permanent magnet rotor, and the longitudinal suspension force is generated. A method for control that magnetic suspension hub motor includes such step as analyzing the driver's intention by a driver's intention judgment module, and making the magnetic suspension hubmotor reach the use requirement, wherein the suspension winding and the driving winding of the magnetic suspension hub motor are controlled by the driver's intention judgment module.

Description

technical field [0001] The invention relates to a magnetic levitation hub motor control system, and relates to the fields of motor technology, magnetic levitation technology, computer control technology and new energy vehicle technology. Background technique [0002] As a new type of power drive, the electric motor used in new energy vehicles is very different from traditional vehicles in terms of energy supply system, powertrain system, vehicle layout, and vehicle control system; the powertrain system is crucial to vehicle design. Crucially, it not only provides driving torque and radial and lateral torque, but also directly determines the safety and comfort of the vehicle. [0003] At present, although the powertrain system of new energy vehicles is simplified to a certain extent compared with traditional vehicles, the motor generates torque, which is transmitted to the drive wheels through the drive shaft, reducer, and differential. The structure of this driving system i...

AI Technical Summary

Problems solved by technology

The structure of this drive system is still relatively complex, takes up a large space, generates large vibration and noise and transmits it to the car, and affects the comfort of the car; and the complex mechanical transmission mechanism greatly reduces the electrical energy of the new energy vehicle to the mechanical energy. The conversion efficiency and braking energy recovery rate are not conducive to the intelligent control of automobiles.

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