Over release discrimination apparatus of Electronic parking brake apparatus and discrimination method thereof

摘要

An apparatus for determining over release of an EPB device and a method for determining the same are disclosed. According to an embodiment of the present disclosure, an apparatus for determining over release of an EPB device and a method for determining the same may receive current direction direction information of a motor from an actuator of an EPB device and receive an operation request signal in a brake pad exchange mode. An input unit; When receiving the operation request signal of the brake pad replacement mode, the hydraulic pressure applying unit for providing the actuator with a hydraulic value of a predetermined size for the over-release determination of the actuator; A counting unit counting a current motor current change rate value that changes in response to a current motor current value from an actuator provided with a hydraulic pressure of a predetermined size; And determining whether the current actuator is operating in the release direction using the input current direction operation information of the motor, and determining whether the brake pad is in the exchange mode using the operation request signal of the input brake pad replacement mode. And a determination unit to determine whether the current actuator is over-released by using the magnitude and time of the counted current motor current change rate value.