Patent ID: 6871728

Claim:
A vehicle brake device comprising a master cylinder coupled to a brake pedal, a wheel cylinder for pressing brake pads against a disk rotor under brake hydraulic pressure, a brake fluid supply passage for supplying brake fluid from said master cylinder to said wheel cylinder, a hydraulic pressure generating source for generating brake hydraulic pressure, a brake fluid circulating passage disposed in said brake fluid supply passage and having said hydraulic pressure generating source, a supply valve provided on the discharge side of said hydraulic pressure generating source in said brake fluid circulating passage for supplying brake fluid to said wheel cylinder, and a return valve provided on the suction side of said hydraulic pressure generating source for returning brake fluid from said wheel cylinder to control the brake hydraulic pressure in said wheel cylinder, and further comprising a detector for detecting whether the brake pedal is being operated, and a dragging detector for detecting dragging of said brake pads by said disk rotor, wherein if dragging is detected by said dragging detector with said brake pedal not operated, said hydraulic pressure generating source is actuated for a predetermined time with said supply valve closed and said return valve opened to draw the brake fluid in said wheel cylinder into said brake fluid circulating passage, thereby increasing the distance between said brake pad and said disk rotor.