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Patent Searching and Data


Title:
VEHICLE BRAKE DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/111849
Kind Code:
A1
Abstract:
Provided is a vehicle brake device which increases the controllability of wheel pressure and suppresses fluctuations in reaction force against a brake operating member and fluctuations in the stroke of the brake operating member. This vehicle brake device is provided with a fluid pressure generating unit, a valve unit, a pump, and a storage unit which forms a storage chamber connected to a portion between the valve unit and the fluid pressure generating unit of a flow path for a brake fluid or to a master chamber, a dead zone in which the change of force having a magnitude corresponding to the fluid pressure in the master chamber does not practically act on the brake operating member is set, and a characteristic indicating the relation between the fluid pressure and the fluid amount of the brake fluid in the storage chamber is set such that the force having the magnitude corresponding to the fluid pressure in the master chamber and acting on a master piston when the brake fluid flows into and out of the storage chamber does not act on the brake operating member on the basis of a characteristic indicating the relation between the fluid pressure and the fluid amount of the brake fluid in a wheel cylinder and the dead zone.

Inventors:
MIYATA YOSHIHIRO (JP)
HINENO YASUHIRO (JP)
NAKANO KEITA (JP)
IIDA TAKANORI (JP)
Application Number:
PCT/JP2013/051568
Publication Date:
August 01, 2013
Filing Date:
January 25, 2013
Export Citation:
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Assignee:
ADVICS CO LTD (JP)
International Classes:
B60T13/66; B60T11/18; B60T13/12
Foreign References:
JPH1120674A1999-01-26
JP2001158339A2001-06-12
Attorney, Agent or Firm:
KOBAYASHI OSAMU (JP)
Kobayashi 脩 (JP)
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Claims: