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Title:
CHANGE-GEAR CONTROL DEVICE FOR AUTOMATIC CHANGE-GEAR
Document Type and Number:
WIPO Patent Application WO/2010/044333
Kind Code:
A1
Abstract:
In a change-gear control device for an automatic change-gear (2) capable of automatic shift-up in a manual mode, a hysteresis between an automatic up-shift line and a down-shift permission line is set smaller as an accelerator opening degree decreases.  This suppresses the time interval between a down-shift and an up-shift becoming extremely small for the situation that hunting is more likely to occur because of a large accelerator opening degree.  In contrast, for the situation that hunting is less likely to occur because of a small accelerator opening degree, it is possible to enlarge a manual down-shift possible region toward the high revolution side, so that it is possible to respond to a driver’s manual down-shift request from a high vehicle-speed region.

Inventors:
MATSUNAGA, Hitoshi (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
松永 仁 (〒71 愛知県豊田市トヨタ町1番地 トヨタ自動車株式会社内 Aichi, 〒4718571, JP)
Application Number:
JP2009/066522
Publication Date:
April 22, 2010
Filing Date:
September 24, 2009
Export Citation:
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Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho, Toyota-shi Aichi, 71, 〒4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町1番地 Aichi, 〒4718571, JP)
MATSUNAGA, Hitoshi (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
International Classes:
F16H61/10; F16H59/18; F16H59/40; F16H59/42; F16H59/56; F16H59/74; F16H61/686
Foreign References:
JPH09264414A
JPH11294570A
JP2004257414A
JP2007120702A
JP2008144952A
Attorney, Agent or Firm:
ARC PATENT ATTORNEYS' OFFICE (Sumitomoseimei Midosuji Bldg. 14-3, Nishitemma 4-chome Kita-ku, Osaka-sh, Osaka 47, 〒5300047, JP)
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