Patent ID: 8348024
Filing Date: 2013-01-08
Classification: B60T,F16D

Abstract:
1. A motor-driven disk brake system comprising: an electric caliper having an electric actuator that is adapted to move a pressing member in a first direction for pressing a brake pad against a rotating body; and a control device for supplying an electric power to the electric actuator to control the electric actuator, wherein the electric caliper is adapted to return the pressing member in a second direction opposite to the first direction when a supply of electric power from the control device is stopped, wherein the control device is adapted to reduce an amount of current and then stop the power supply, so as to gradually return the pressing member, in a first operation of stopping the power supply to the electric actuator, wherein, when the first operation of stopping the power supply is interrupted in the middle of the first operation of stopping the power supply, the system enters a condition that the electric power is supplied to the electric actuator, wherein, when the control device conducts a second operation of stopping the power supply to the electric actuator after the first operation of stopping the power supply is interrupted in the middle of the first operation of stopping the power supply, the control device returns the pressing member to an interrupted position or a predetermined position in front of the interrupted position, and then gradually returns the pressing member, and wherein the return to the interrupted position or the predetermined position in front of the interrupted position is faster than the gradual return of the pressing member.