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Patent Searching and Data


Title:
CONTROLLER FOR AUTOMATIC TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2010/038351
Kind Code:
A1
Abstract:
A sustaining output calculation means (33) calculates a sustaining output needed for sustaining a vehicular velocity based on a travel resistance, and a requested output calculation means (32) calculates a requested output based on an accelerator opening, for example. Meanwhile, a maximum output calculation means (40) calculates the current gear ratio maximum output as the maximum output of the vehicle at the current gear ratio based on the maximum output characteristic of an engine (2), and a post-upshift maximum output as the maximum output of the vehicle at the gear ratio after the gear is upshifted. Then, downshifting is determined when a first value calculated based on the sustaining output, the requested output, and the excess output has become greater than a second value calculated based on the current gear ratio maximum output, and upshifting is determined when a third value calculated based on the sustaining output, the requested output, and the excess output has become smaller than a fourth value calculated based on the post-upshift maximum output. Selection of the gear ratio based on aforementioned calculations is enabled in order to facilitate further improvement of the fuel efficiency.

Inventors:
ASAI, Masahiro (10, Takane, Fujii-cho, Anjo-sh, Aichi 92, 〒4441192, JP)
浅井雅広 (〒92 愛知県安城市藤井町高根10番地 アイシン・エィ・ダブリュ株式会社内 Aichi, 〒4441192, JP)
Application Number:
JP2009/004061
Publication Date:
April 08, 2010
Filing Date:
August 24, 2009
Export Citation:
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Assignee:
AISIN AW CO., LTD. (10 Takane, Fujii-cho Anjo-sh, Aichi 92, 〒4441192, JP)
アイシン・エィ・ダブリュ株式会社 (〒92 愛知県安城市藤井町高根10番地 Aichi, 〒4441192, JP)
ASAI, Masahiro (10, Takane, Fujii-cho, Anjo-sh, Aichi 92, 〒4441192, JP)
International Classes:
F16H61/02; F16H61/68; F16H61/684; F16H61/686; F16H63/50; F16H59/18; F16H59/44
Foreign References:
JPH08238952A
JP2006507459A
JPH1182084A
JPH03265754A
JPH1148821A
JPH0972414A
JPH0920158A
JP2001208194A
JPH10325462A
JPH1134689A
Attorney, Agent or Firm:
CHIKASHIMA, Kazuo (2F Omodaka Building, 9-7 Shibaura 1-chom, Minato-ku Tokyo 23, 〒1050023, JP)
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