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Patent Searching and Data


Title:
CONTROLLER FOR AUTOMATIC TRANSMISSION AND CONTROL METHOD FOR AUTOMATIC TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2010/024065
Kind Code:
A1
Abstract:
When a vehicle stops and the starting conditions of a neutral control are satisfied, an ECU starts a release control for reducing a first working hydraulic pressure (Pc1) being supplied to a first clutch (first timing t11).  After finishing the release control, the ECU performs an in-neutral control for bringing the first clutch into a state close to a stroke end state.  More specifically, the ECU performs a confirmation control for finely varying the first working hydraulic pressure (Pc1) three times, and, when a determination is made that the first clutch is in a stroke-near-end state, the ECU reduces the first working hydraulic pressure (Pc1), being supplied to the first clutch, by a pressure reduction amount (Pdec), and then maintains the first working hydraulic pressure (Pc1) at a constant pressure (fifth timing t15).

Inventors:
OKUMOTO GEN (JP)
TSUKAMOTO YASUO (JP)
TOMIDA HIDEKI (JP)
NISHIKAWA MASAHIKO (JP)
Application Number:
PCT/JP2009/063081
Publication Date:
March 04, 2010
Filing Date:
July 22, 2009
Export Citation:
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Assignee:
AISIN AW CO (JP)
OKUMOTO GEN (JP)
TSUKAMOTO YASUO (JP)
TOMIDA HIDEKI (JP)
NISHIKAWA MASAHIKO (JP)
International Classes:
F16H61/02; F16H59/42; F16H59/44; F16H59/72; F16H61/686
Foreign References:
JP2003165360A2003-06-10
JPH11230330A1999-08-27
JP2003074688A2003-03-12
JP2004162845A2004-06-10
JP2005282798A2005-10-13
JP2004116686A2004-04-15
JP2001165289A2001-06-19
Other References:
See also references of EP 2241788A4
Attorney, Agent or Firm:
ONDA, Hironori et al. (JP)
Hironori Onda (JP)
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