Title:
SHIFT CONTROLLER FOR AUTOMATIC TRANSMISSION
Document Type and Number:
Japanese Patent JP3849456
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To resolve a problem of erroneous learning due to racing of an engine when shift points are learned and corrected on the basis of maximum engine speed.
SOLUTION: In an upshift during full throttle, an actual shift start is delayed by delay of oil pressure, rise of torque capacity of a clutch or the like even when a shift judgment Us1 is outputted from a control part, and a shift start Uj is judged by comparing an input rotational frequency Ni with a value multiplying a gear ratio before shifting on an output rotational frequency (a vehicle speed) No. A shift point Mp1 is learned and corrected on the basis of a rotational frequency Ne1 at the shift start.
Inventors:
Yoshihiro Sekii
Yoshihisa Yamamoto
Masamichi Unoki
Tsutomu Mizutani
Yoshihisa Yamamoto
Masamichi Unoki
Tsutomu Mizutani
Application Number:
JP2001131357A
Publication Date:
November 22, 2006
Filing Date:
April 27, 2001
Export Citation:
Assignee:
Aisin AW Co., Ltd.
International Classes:
F16H61/02; F16H61/08; F16H59/20; F16H59/24; F16H59/36; F16H59/40; F16H59/42; F16H59/44; F16H59/70; F16H61/00; F16H61/686; (IPC1-7): F16H61/02; //F16H59:24; F16H59:40; F16H59:42; F16H59:44; F16H59:70; F16H63:12
Domestic Patent References:
| JP9280351A | ||||
| JP4341656A | ||||
| JP8226535A |
Attorney, Agent or Firm:
Kazuo Chikajima
Shinji Aida
Shinji Aida