Title:
車両のブレーキ液圧制御装置
Document Type and Number:
Japanese Patent JP4374942
Kind Code:
B2
Abstract:
A brake hydraulic pressure control apparatus (10) includes a pressure-increasing valve (PU) disposed between a master cylinder (MC) and a wheel cylinder (W); a pressure-reducing valve (PD) disposed between the wheel cylinder (W) and a reservoir (RS); and a hydraulic pump (HP) for pumping brake fluid from the reservoir (RS) (secondary circuit) so as to return the brake fluid to a primary circuit between the master cylinder (MC) and the pressure-increasing valve (PU). Through control of these valves (PU,PD), brake hydraulic pressure within the wheel cylinder (W) is controlled. In addition, the hydraulic pump (HP) is driven at least over a period in which the brake hydraulic pressure control is performed. When the vehicle is in a predetermined state which indicates that the driver does not have an intention of performing the brake operation, both the pressure-increasing valve (PU) and the pressure-reducing valve (PD) are opened over a predetermined period of time so as to establish communication between the secondary circuit and the primary circuit.
Inventors:
Yasumi Inoue
Application Number:
JP2003288848A
Publication Date:
December 02, 2009
Filing Date:
August 07, 2003
Export Citation:
Assignee:
Advics Co., Ltd.
International Classes:
B60T8/48; B60T8/40; B60T8/42; B60T8/88; B60T8/90
Domestic Patent References:
| JP6092221A | ||||
| JP11091534A | ||||
| JP9323638A | ||||
| JP6092220A | ||||
| JP10035458A |
Foreign References:
| US6199960 |
Attorney, Agent or Firm:
Sakio Oba
Shinji Kato
Toshikazu Higuchi
Shinji Kato
Toshikazu Higuchi