Hydraulic pressure control device for antiskid

Abstract

Abstract PURPOSE:To raise again pressure of a master cylinder, stably, by setting a cut valve between the master cylinder and wheel cylinder, as this but valve confronts a part between a displacement chamber and a pressure chamber, and connecting an accumulator to the pressure chamber through a control valve. CONSTITUTION:A cut valve 32 is set between a master cylinder 4 and wheel cylinders 12, 13, and a control piston 36 adapted to open/close the cut valve 32, is set between a displacement chamber 41 and a pressure chamber 39. An electromagnetic pump 26 and a solenoid controlled valve 21 are connected to the pressure chamber 39, and at the same time, an accumulator 72 is also connected to the pressure chamber 39, through an accumulator control valve 80 adapted to be closed by the pressure from the master cylinder 4. Anti-skid control is performed by switching the solenoid controlled valve 21, and the control valve 80 is opened when the pressure of the master cylinder 4 becomes lower, to feed pressed liquid in the accumulator 72 to the pressure chamber 39, and open the cut valve 32 through the control piston 36, and consequently, pressure of the master cylinder 4 can be raised again stably.

Inventors

• 👤 Katsumi Maehara
• 👤 前原　克巳

Bibliographic Details