Title:
FLUID-PRESSURE BRAKE DEVICE FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2014/126085
Kind Code:
A1
Abstract:
A fluid-pressure brake device (100) for a vehicle, provided with: a brake operating element (10), a master cylinder (20), wheel cylinders (FL, FR, RL, RR), an actuator (30) for fluid-pressure control, a fluid-pressure control circuit (40), an electric control device (50) and the like. Furthermore, in the fluid-pressure brake device (100) for a vehicle are disposed: master system fluid-pressure circuits (31, 32) connecting pressure chambers (C3, C4) of the master cylinder (20) and pressure chambers of the wheel cylinders (FL, FR, RL, RR), as well as normally closed electromagnetic open-closed valves (V8, V9) located in passages (P1, P2) connecting the master system fluid-pressure circuits (31, 32) and a driving fluid chamber (C2) of the master cylinder (20). The electromagnetic open-closed valves (V8, V9) are set so as to open when actuation amount of the brake operating element (10) is equal or greater than a set value. As a result, it is possible to reduce the size and stroke of the master piston in the master cylinder.
Inventors:
ISHIDA SATOSHI (JP)
Application Number:
PCT/JP2014/053147
Publication Date:
August 21, 2014
Filing Date:
February 12, 2014
Export Citation:
Assignee:
ADVICS CO LTD (JP)
ISHIDA SATOSHI (JP)
ISHIDA SATOSHI (JP)
International Classes:
B60T8/17; B60T13/74
Foreign References:
| JP2010000926A | 2010-01-07 | |||
| JP2012066647A | 2012-04-05 | |||
| DE4327206A1 | 1995-02-16 |
Attorney, Agent or Firm:
PROSPEC PATENT FIRM (JP)
Patent business corporation Pros Peck patent firm (JP)
Patent business corporation Pros Peck patent firm (JP)
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