Patent ID: 7597407
Filing Date: 2009-10-06
Classification: B60T,F16D

Abstract:
1. A motor-driven brake system comprising: a brake body for enabling brake pads to be pressed against a disk rotor attached to a member which supports a wheel of a vehicle, to thereby brake said wheel under a pressing force, said brake pads being adapted to be driven by means of an electric device; a pressing-force maintaining mechanism for maintaining said pressing force generated by said brake body, to thereby effect a parking brake operation; a pressing-force detecting means adapted to detect said pressing force generated by said brake body; and a control device for controlling said electric device and said pressing-force maintaining mechanism, said control device comprising: an elapsed time measuring means adapted to measure an elapsed time during said parking brake operation by said pressing-force maintaining mechanism; and a pressing-force reduction predicting means adapted to predict, based on said elapsed time measured by said elapsed time measuring means and a value of said pressing force as detected by said pressing-force detecting means when said elapsed time is measured, a magnitude of said pressing force generated by said brake body after said elapsed time.