Motor control apparatus and operation method for the same
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United States of America Patent
Stats
-
Jul 18, 2017
Grant Date -
Jun 9, 2016
app pub date -
Dec 3, 2015
filing date -
Dec 4, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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.
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