PURPOSE: To boost the pressure of a wheel cylinder without delay in a repressurization of the antiskid control, by connecting a master cylinder and the pump communicating port of a flow valve with a passage having a checking means which is opened when the fluid pressure at the pump communicating port side is reduced.
CONSTITUTION: When it is decided that the wheels are liable to be locked in a vehicle braking condition, a solenoid constant closing valve 18 is opened, so as to let flow a brake liquid at the lower hole 27 side of a flow valve 5 into a reservoir 17, the brake fluid is moved downward by a spool 25 by the differential pressure generated on both sides of the spool 25, and the brake fluid in a wheel cylinder 10 flows in the reservoir 17 so as to reduce the brake fluid pressure. When the riability of locking is avoided, the brake fluid pressure is transferred to the repressurizing condition, and when the releasing pressure of a pump 20 is low in this case, a check valve 46 is operated by the pressure at a master cylinder 2 side, the brake fluid pressure is led in to a pump commucating port 13 through a passage 45, the spool 25 is moved wpward, and the braking hydraulic pressure is fed to the wheel cylinder 10 rapidly.
| JPH0647371 | [Title of Invention] Hydraulic braking system for automobiles |
| JP2006021580 | BRAKE DEVICE |
| JP5848980 | Brake device |
SANO KENJI
AMARI YASUHIKO
