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Title:
CONTROLLER OF VEHICLE AUTOMATIC TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2007/049682
Kind Code:
A1
Abstract:
A controller capable of ensuring an engine braking force or a drive torque even if the speed-change ratio control of an automatic transmission or the speed-down control thereof fails. A controller of a vehicle automatic transmission which outputs a power produced by varying the input power with the speed change ratio comprises failure detecting means for detecting a failure that one of predetermined speed-change rations cannot be set and speed-decrease command means for outputting a speed-change command to set a speed-change ratio higher than the predetermined speed-change ratio according to the signal outputted when the failure detecting means detects a failure.

Inventors:
TABATA ATSUSHI (JP)
IBARAKI RYUJI (JP)
MATSUBARA TOORU (JP)
IDESHIO YUKIHIKO (JP)
SHIBATA HIROYUKI (JP)
Application Number:
PCT/JP2006/321345
Publication Date:
May 03, 2007
Filing Date:
October 26, 2006
Export Citation:
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Assignee:
TOYOTA MOTOR CO LTD (JP)
TABATA ATSUSHI (JP)
IBARAKI RYUJI (JP)
MATSUBARA TOORU (JP)
IDESHIO YUKIHIKO (JP)
SHIBATA HIROYUKI (JP)
International Classes:
B60K6/445; B60K6/547; B60W10/10; B60W20/00; F16H61/12; F16H61/68; F16H61/684; F16H59/44; F16H59/48; F16H61/66; F16H61/686; F16H61/688; F16H61/70
Foreign References:
JP2001059571A2001-03-06
JPH11280888A1999-10-15
JPH0415359A1992-01-20
JPH10252847A1998-09-22
JPH05157169A1993-06-22
JP2005256883A2005-09-22
JP2003127681A2003-05-08
JP2006097786A2006-04-13
JP2002147597A2002-05-22
JPH09317871A1997-12-12
Attorney, Agent or Firm:
WATANABE, Takeo (Adex Bldg. 12-1, Yushima 3-chom, Bunkyo-ku Tokyo 34, JP)
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