Methods and systems for improving the operation of transmissions

Details Methods and systems for improving the operation of transmissions Methods and systems for improving the operation of transmissions

1995-08-14

1998-03-24

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

475120, 475128, 477130, F16H 6126

Patent

active

057306850

ABSTRACT:
Methods and systems for improving the operation of a transmission for an automotive vehicle, and in particular the transmission as installed by the original automobile manufacturer, modify the original hydraulic fluid circuits of the automotive transmission installed by the automobile manufacturer to enable the "factory installed" transmission to hold first gear in the first gear selector position through any rotational speed of the engine. Further modifications to the hydraulic circuitry enable the operator of the vehicle to select fourth gear manually at relatively high vehicle speeds at wide open throttle conditions. Additional modifications to the hydraulic circuitry increase the third clutch capacity at high throttle during a "2-3" shift, and result in firm and more correctly timed shifts. The modifications to the hydraulic circuitry of the "factory installed" transmission provide new valves, block existing hydraulic lines, provide additional connecting hydraulic lines to the existing hydraulic circuitry, increase minimum and maximum main line pressure by changing regulator springs, and enlarge or reduce orifice sizes in the hydraulic circuitry of the "factory installed" transmission to increase or decrease fluid flow.

REFERENCES:
patent: 3314307 (1967-04-01), Egbert
patent: 3491617 (1970-01-01), Konrad
patent: 3842693 (1974-10-01), Oberpichler
patent: 4347765 (1982-09-01), Leonard et al.
patent: 4449426 (1984-05-01), Younger
patent: 4829852 (1989-05-01), Sakakiyama
patent: 5540628 (1996-07-01), Younger
TRANSGO AOD-HP Reprogramming Kit, TRANSGO, 1994, pp. 1-6.

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