Device for controlling the speed shift operation of an automatic

Details Device for controlling the speed shift operation of an automatic Device for controlling the speed shift operation of an automatic

1976-10-27

1978-08-22

Scott, Samuel

Machine element or mechanism

Gearing

192 333, F16H 4700

Patent

active

041080220

ABSTRACT:
A device for controlling the speed shift operation of an automatic transmission including two change-over valves disposed in a passage transmitting the governor pressure to a servo chamber of a shift valve, the changing-over valves being actuated by the governor pressure and the throttle pressure so as to modify the governor pressure signal supplied to said shift valve thereby accomplishing a modification of a speed shift line to more favorably meet current exhaust gas purification requirements.

REFERENCES:
patent: 3638771 (1972-02-01), Chana
patent: 3705642 (1972-12-01), Thompson

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