Apparatus and Method for controlling permanent magnet synchronous motor in electronical hybrid power steering

摘要

The present invention relates to a control apparatus and method for a permanent magnet type synchronous motor for EHPS (Electronical Hybrid Power Steering), CAN (Controller Area Network) receives a vehicle speed and a steering angular speed from the ECU (Electronic Control Unit) via a communication, the input receiving a vehicle speed and the steering angular velocity and after determining the command speed of the permanent magnet type synchronous motor using the speed control map have set an optimum rotational speed depending on the respective vehicle speed and steering angular speed, the command speed and the rotation speed of the actual permanent magnet synchronous motor the comparison characterized in that it outputs the command current, and outputs a current control signal for controlling the inverter to compare the actual drive current to the output from the command current and the inverter.; According to the present invention, it is possible to efficiently control the operation of the permanent magnet type synchronous motor for EHPS, it is possible to improve the fuel economy of the vehicle through which