Control apparatus and control method for automatic transmission

Details Control apparatus and control method for automatic transmission Control apparatus and control method for automatic transmission

1997-03-17

2000-05-23

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

701 64, 701 87, 477107, 477108, 477109, 477115, G06G 700, F16H 5900

Patent

active

060674946

ABSTRACT:
A transmission torque of a friction part during a shift is requested in accordance with an input rotation speed and an input torque of the friction part of an automatic transmission and a target torque during the shift determines. An output torque of an engine is reduced in accordance with a difference between the transmission torque and the target torque. A control transmission torque supplied to the friction part is determined in accordance with the torque difference and the transmission torque, thereby an operation force to the friction part is determined and the operation force is supplied to the friction part. A control apparatus and method for the automatic transmission is provided wherein a stable shift time can obtain and a shift shock can be suppressed.

REFERENCES:
patent: 5608626 (1997-03-01), Ibamoto et al.
patent: 5826208 (1998-10-01), Kuriowa et al.

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