Title:
液圧制御装置及びそれを用いた車両制動装置
Document Type and Number:
Japanese Patent JP4774600
Kind Code:
B2
Abstract:
A hydraulic pressure control device is provided in which a proportional pressure control valve (20) is actuated by operating the brake pedal (11) to adjust the hydraulic pressure supplied from a pressure source to the wheel brakes to a value corresponding to the pedal operating amount. Also, a brake device for a vehicle using it is provided. The proportional pressure control valve (20) is integrated with a hydraulic pressure generator to transmit the input from the brake pedal (11) to a spool valve (22) in the control valve through a first piston (31), first spring (32), second piston (33) and second spring (34) of the hydraulic pressure generator. If the pressure source or the wheel brakes in a first line fail, after the second piston (33) has made a full stroke, brake fluid in a fluid chamber is pressurized, so that the hydraulic pressure generated is supplied to wheel brakes in a second line through a copy valve (8) which is open.
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Inventors:
Keita Nakano
Masato Yoshino
Nishiki Makoto
Masato Yoshino
Nishiki Makoto
Application Number:
JP2001014903A
Publication Date:
September 14, 2011
Filing Date:
January 23, 2001
Export Citation:
Assignee:
Advics Co., Ltd.
International Classes:
B60T13/14; B60T8/34; B60T8/36; B60T8/40; B60T8/44; B60T8/94; B60T13/16
Domestic Patent References:
| JP2000177562A | ||||
| JP9039765A |
Foreign References:
| US3928970 |
Attorney, Agent or Firm:
Bunji Kamada
Torii Kazuhisa
Takayoshi Tagawa
Higashio Masahiro
Torii Kazuhisa
Takayoshi Tagawa
Higashio Masahiro