Apparatus for controlling hydraulic coupling device in automatic

Details Apparatus for controlling hydraulic coupling device in automatic Apparatus for controlling hydraulic coupling device in automatic

1992-10-06

1995-02-21

Braun, Leslie A.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

3644241, B60K 4106

Patent

active

053905660

ABSTRACT:
A control apparatus for controlling a hydraulic pressure to be applied to a hydraulic operated frictional coupling device of an automatic transmission for a motor vehicle, for an engaging action of the coupling device to establish a given operating position of the transmission. The apparatus includes a detector for detecting a rate of change in a parameter indicative of a progress of the engaging action of the frictional coupling device, and a pressure control device for regulating the hydraulic pressure so that the rate of change in the parameter detected by the detector coincides with a target value. The apparatus further includes an inhibiting device. The execution of a vehicle control function which influences the detected rate of change in the parameter is inhibited by the inhibiting device, while the rate of change in the parameter is detected by the detector.

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patent: 4928557 (1990-05-01), Takada et al.
patent: 5043892 (1991-08-01), Brekkestran et al.
patent: 5088354 (1992-02-01), Asada
patent: 5097726 (1992-03-01), Asada
patent: 5101350 (1992-03-01), Tokoro
patent: 5109731 (1992-05-01), Iwatsuki et al.
patent: 5166879 (1992-11-01), Greene et al.
patent: 5182970 (1993-02-01), Goto et al.

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