Title:
VEHICLE BRAKE CONTROL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2014/045382
Kind Code:
A1
Abstract:
A brake ECU (100) produces a differential pressure (ΔPcheck) between the upstream side and downstream side of a changeover valve (64) with the changeover valve (64) closed, and, in this state, implements the inspection of the changeover valve (64) on the basis of a variation in fluid pressure detected by a front wheel control pressure sensor (103). The open valve current characteristics of a linear control valve (67) vary depending on the open/close state of the changeover valve (64). Thus, the brake ECU (100), when opening a pressure-reduction linear control valve (67B) at the end of inspection of the changeover valve (64), corrects the current caused to flow through the pressure-reduction linear control valve (67B) so as to prevent an initial value from exceeding an open valve current. In this way, self-excited vibration caused at the time of opening the pressure-reduction linear control valve (67B) can be suppressed.
Inventors:
NAKATA DAISUKE (JP)
TAKAHASHI YUU (JP)
FUKASAWA TSUKASA (JP)
TAKAHASHI YUU (JP)
FUKASAWA TSUKASA (JP)
Application Number:
PCT/JP2012/074161
Publication Date:
March 27, 2014
Filing Date:
September 21, 2012
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
NAKATA DAISUKE (JP)
TAKAHASHI YUU (JP)
FUKASAWA TSUKASA (JP)
NAKATA DAISUKE (JP)
TAKAHASHI YUU (JP)
FUKASAWA TSUKASA (JP)
International Classes:
B60T11/28
Foreign References:
| JP2009255847A | 2009-11-05 | |||
| JPH04355516A | 1992-12-09 | |||
| JP2005035466A | 2005-02-10 | |||
| JP2007131247A | 2007-05-31 |
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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