Hydraulic control system for automatic transmission of automotiv

Details Hydraulic control system for automatic transmission of automotiv Hydraulic control system for automatic transmission of automotiv

1992-11-09

1994-05-31

Braun, Leslie A.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

123323, 36442604, 477186, 477901, 477902, B60K 4120

Patent

active

053158997

ABSTRACT:
A hydraulic control system for an automatic transmission of an automotive vehicle with an exhaust braking unit is provided. This hydraulic control system serves to elevate hydraulic pressure utilized for actuating frictional elements of the automatic transmission during exhaust braking operation toward a preselected level when the pay load of the vehicle is greater than a preselected threshold value for securing tight engagement of the frictional elements without any slippage.

REFERENCES:
patent: 4488456 (1984-12-01), Taga et al.
patent: 4534244 (1985-08-01), Hiramatsu
patent: 4563918 (1986-01-01), Sugano
patent: 4658676 (1987-04-01), Furusawa et al.
patent: 4765201 (1988-08-01), Ishiguro et al.
patent: 5107725 (1992-04-01), Takahashi
patent: 5121723 (1992-06-01), Stepper et al.
patent: 5193657 (1993-03-01), Iizuka

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