APPARATUS AND METHOD FOR CONTROLLING PERMANENT MAGNET SYNCHRONOUS MOTOR IN ELECTRONICAL HYBRID POWER STEERING

摘要

The present invention relates to a control device and a method of a permanent magnet synchronous motor for electronic hybrid power steering (EHPS), and receives a vehicle speed and a steering angular velocity from an ECU (Electronic Control Unit) via CAN (Controller Area Network) communication. After the command speed of the permanent magnet synchronous motor is determined using the speed control map that sets the optimum rotation speed according to the received vehicle speed and steering angular speed and each vehicle speed and steering angular speed, the command speed and the actual rotation speed of the permanent magnet synchronous motor are determined. It is characterized in that to output a command current by comparing the command current, the current control signal for controlling the inverter by comparing the command current and the actual drive current output from the inverter. ; According to the present invention, it is possible to efficiently control the driving of the permanent magnet synchronous motor for EHPS, thereby improving fuel economy of the vehicle. ; Permanent Magnet Synchronous Motor, EHPS, Steering, Inverter, CAN Communication, Current Control