Control system for automatic transmission, including coordinated

Details Control system for automatic transmission, including coordinated Control system for automatic transmission, including coordinated

1997-07-03

1999-09-07

Bonck, Rodney H.

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid controlled mechanical clutch or brake

475117, 477 98, 477131, 477155, F16H 6106

Patent

active

059478560

ABSTRACT:
A control system for an automatic transmission, in which a first frictional engagement element and a second frictional engagement element are released according to a shift from a running range to a non-running range. The shift from the running range to the non-running range is detected, and the reduction in the oil pressure of the second frictional engagement element is controlled on the basis of the reduction in the oil pressure of the first frictional engagement element when the shift from the running range to the non-running range is detected.

REFERENCES:
patent: 2794349 (1957-06-01), Smirl
patent: 3724294 (1973-04-01), Gaus
patent: 4941370 (1990-07-01), Ishii
patent: 5076117 (1991-12-01), Shibayama
patent: 5433124 (1995-07-01), Person
patent: 5505672 (1996-04-01), Sakai et al.
patent: 5792023 (1998-08-01), Bazzi et al.

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