Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Reexamination Certificate
2007-08-07
2007-08-07
Williams, Thomas (Department: 3683)
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
C303S003000, C303S020000
Reexamination Certificate
active
11041532
ABSTRACT:
A combined braking system in which communicative connection a master cylinder and a brake caliper is cut off by an electromagnetic on-off valve, and hydraulic pressure, corresponding to driving conditions and a braking operation, is generated by an electrically-operated actuator of a hydraulic pressure modulator. Hydraulic pressure of the hydraulic pressure modulator operates on the brake caliper, whereas a psuedo-reaction force which has been generated by a reaction force modulator operates on the master cylinder. The reaction force modulator is configured to include: a fluid chamber for receiving hydraulic fluid which has flowed therein from the master cylinder; a piston to constitute a wall of the fluid chamber; and a metal-made coil spring and a deformed plastic resin spring, both of which apply a force to the piston. The braking system provides a braking operation having a smooth feeling which is similar to that given by a direct-operation-type brake system.
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Nishikawa Yutaka
Tagami Takuya
Tani Kazuhiko
Blackman William D.
Carrier Joseph P.
Carrier Blackman & Associates P.C.
Honda Motor Co. Ltd.
Williams Thomas
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