Apparatus for regulating vehicle transmission line pressure base

Details Apparatus for regulating vehicle transmission line pressure base Apparatus for regulating vehicle transmission line pressure base

1992-11-06

1994-06-28

Braun, Leslie A.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

3644241, 477158, 477905, B60K 4106

Patent

active

053236688

ABSTRACT:
A hydraulic control apparatus for an automatic transmission of a motor vehicle, which has a plurality of gear positions that are selectively established by selective operation of hydraulically operated frictional coupling devices. The apparatus includes a pressure regulating device which receives a hydraulic pressure generated by a pressure source and generates a line pressure to be applied to the coupling devices. The pressure regulating device regulates the line pressure on the basis of the detected throttle opening angle of the engine when the vehicle is running in a transient state, and on the basis of the detected intake air quantity of the engine when the vehicle is running in a steady state.

REFERENCES:
patent: 4220059 (1980-09-01), Mizuno
patent: 4691285 (1987-09-01), Takeda
patent: 4739483 (1988-04-01), Ina et al.
patent: 4833612 (1989-05-01), Okuno et al.
patent: 5003950 (1991-04-01), Kato et al.
patent: 5081887 (1992-01-01), Kato
patent: 5266351 (1993-07-01), Matsuoka et al.

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