BRAKE LIQUID PRESSURE CONTROL METHOD FOR LIQUID PRESSURE TYPE BRAKE FOR AUTOMOBILE

摘要

PURPOSE:To shorten the time of braking at the time of braking by not deciding that a vehicle has stopped when another car wheel is continuing an anti-skid operation even if the zero state of the car wheel speed of a certain car wheel has continued for a predetermined time, and by stimulating the recovery of the car wheel speed of the car wheel that has generated a car wheel lock. CONSTITUTION:When a brake pedal 1 is stepped on at the travel time of a vehicle, brake liquid pressure generated at a master cylinder 2 is supplied to the brake 3 of a car wheel 4, and braking force is generated. In this instance, when the rate of the lowering of a car wheel speed reaches a set value, brake liquid pressure is depressurinzed by the operation of an actuator 5 by a control circuit 7, and also, after the recovery of the car wheel speed, brake liquid pressure is repressurized. On this occasion, in case, at the time of braking operation, another car wheel is continuing an anti-skid operation when the zero state of the car wheel speed has continued for a predetermined time at a certain wheel, control is so made that the timing of the depressurization and repressurization of the brake liquid pressure of the car wheel whose zero state has continued for the predetermined time, and the timing of the anti-skid control of another car wheel, are made to synchronize.