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Title:
CONTROLLER OF AUTOMATIC TRANSMISSION
Document Type and Number:
Japanese Patent JP3938535
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To protect a mechanical clutch by judging a reverse rotation of a transmission, when a vehicle has moved in the reverse direction in a so-called slope start.
SOLUTION: Whether or not the transmission is rotating in the reverse direction is judged (S3) based on the variation of the rotation of the driving side or the driven side in the process for engaging the mechanical clutch after shifting the transmission into neutral, when the car speed has become higher than a required value V0 (S2) in the start waiting state (S1) that the transmission is shifted into a running stage and the mechanical clutch is disengaged. Next, when the accelerator pedal has been pressed down more than a required angle θ0 (S4) or a gear shifting command has been input from a gearshift lever (S5), the gear shifting into the running gear of the transmission is forbidden if the transmission is rotating in the reverse direction (reverse rotation flag=1) (S6). On the contrary, if the transmission is not rotating in the reverse direction, the transmission is shifted into the running stage corresponding to the pressed-down state of the accelerator pedal or the gear shifting command (S7).


Inventors:
北村 俊夫
岡本 勲
磯邉 修
林 哲久
市川 雄一
Application Number:
JP2002000286690
Publication Date:
June 27, 2007
Filing Date:
September 30, 2002
Export Citation:
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Assignee:
日産ディーゼル工業株式会社
International Classes:
F16H61/16; F16D48/06; F16H61/18; F16H59/10; F16H59/18; F16H59/42; F16H59/44; F16H59/48; F16H61/682; F16H63/20; (IPC1-7): F16H61/16; //F16H59:10; F16H59:18; F16H59:42; F16H59:44; F16H59:48; F16H63:20
Domestic Patent References:
JP200314104A
JP2002295665A
JP2002139143A
JP6446563U
Foreign References:
US4891758
Attorney, Agent or Firm:
笹島 富二雄