Patent ID: 6027182
Filing Date: 2000-02-22
Classification: B60T,Y10S

Abstract:
A brake force control apparatus performing a brake assist control and an antilock brake control, the brake assist control being performed, when an emergency brake operation is performed by a driver, for generating a brake fluid pressure higher than a brake fluid pressure generated by a normal brake operation, the antilock brake control being performed for decreasing a wheel cylinder pressure so that an excessive slip rate is not generated by a brake operation, the brake force control apparatus comprising:a master cylinder generating a brake fluid pressure corresponding to a magnitude of a brake operation;a pump having an inlet port and an outlet port, said inlet port being communicable with said master cylinder;an inlet control valve controlling communication between said master cylinder and said inlet port of said pump;a wheel cylinder communicable with each of said master cylinder and said outlet port of said pump;a supplementary reservoir communicable with each of said wheel cylinder and said inlet port of said pump;brake assist means for performing the brake assist control, when the emergency brake operation is performed by the driver, by opening said inlet control valve and actuating said pump;antilock brake means for performing the antilock brake control by controlling communication between said wheel cylinder and each of said master cylinder, said outlet port of said pump and said supplementary reservoir and actuating said pump; andinlet closing means for closing said inlet control valve when both said brake assist control and said antilock brake control are performed concurrently.