Control system for automtic transmission for vehicle

Details Control system for automtic transmission for vehicle Control system for automtic transmission for vehicle

1997-11-14

1998-10-27

Bonck, Rodney H.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

477906, F16H 6112

Patent

active

058271520

ABSTRACT:
A slip detecting device detects slipping of a selected hydraulically engaged element of an automatic transmission during non-shifting, and a determining device determines a hydraulically engaged element larger in driving-force transmitting capacity than the hydraulically engaged element which is in its engaged state. A transmission control element then brings the hydraulically engaged element having the larger driving force transmitting capacity, into its engaged state, in place of the hydraulically engaged element which was in its engaged state. Thus, the slipping of the hydraulically engaged element during non-shifting is prevented.

REFERENCES:
patent: 4785689 (1988-11-01), Iwatsuki et al.
patent: 4843551 (1989-06-01), Milunas
patent: 4845621 (1989-07-01), Kawata et al.
patent: 4958538 (1990-09-01), Yamashita et al.
patent: 5400678 (1995-03-01), Jain et al.

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