MOTOR CONTROL APPARATUS AND OPERATION METHOD FOR THE SAME

摘要

Provided are a motor control apparatus controlling a motor including a stator and progressing or retreating a screw so that pressure is formed in a piston provided in a brake for braking a vehicle, and an operation method thereof and the motor control apparatus includes: the motor including a rotor with a permanent magnet and a coil forming an electromagnetic field; an encoder outputting an encoder pulse and a reference pulse to correspond to rotation of the motor; and an electronic control unit controlling the motor based on the encoder pulse and the reference pulse of the encoder, wherein the location of the rotor is determined based on the encoder pulse and the reference pulse input from the encoder when the motor rotates by forcibly rotating the motor to control the motor when the motor starts, thereby starting the motor when the hall sensor is abnormal or even though the hall sensor is not provided by controlling the motor.

主权项

1. A motor control apparatus comprising:
a motor including a rotor with a permanent magnet and a stator with a coil forming an electromagnetic field and progressing or retreating a screw so as to generate pressure in a piston provided in a brake for braking a vehicle; an encoder outputting an encoder pulse and a reference pulse to correspond to rotation of the motor; and an electronic control unit controlling the motor based on the encoder pulse and the reference pulse of the encoder, wherein, the electronic control unit determines the location of the rotor based on the encoder pulse and the reference pulse input from the encoder when the motor rotates by forcibly rotating the motor so as to rotate the motor in a first rotation direction or a second rotation direction to control the motor when the motor starts.