Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1994-08-05
1995-12-12
Ballato, Josie A.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303900, B60T 800
Patent
active
054743710
ABSTRACT:
Disclosed is an antilock brake control fluid pressure system, when in effecting antilock control, fluid is supplied from a pump to the flow valve by way of a second fluid inlet. Furthermore, in order to achieve one-way supply of fluid from the master cylinder to the second fluid inlet, a check valve is arranged in parallel with a throttle between the master cylinder and the second fluid inlet. With the above arrangement, a continuous fluid supply is achieved from the master cylinder to the second fluid inlet by way of the check valve even when no fluid exists in an expansion chamber, thereby enabling a metal-edge control at the second fluid inlet allowing the first fluid inlet to be kept in a cut-off condition to thereby suppress reverse pulsation, pump noise, and vibration to the brake pedal.
REFERENCES:
patent: 4929037 (1990-05-01), Farr
patent: 4952002 (1990-08-01), Arikawa et al.
patent: 5135292 (1992-08-01), Friedow
patent: 5401086 (1995-03-01), Nishikimi et al.
Ballato Josie A.
Sumitomo Electric Industries Ltd.
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