Automatic transmission control apparatus

Details Automatic transmission control apparatus Automatic transmission control apparatus

1993-07-14

1995-10-24

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

477109, 477906, G05D 1702, B60K 4106

Patent

active

054605814

ABSTRACT:
A control apparatus for an automatic transmission in which when a select position of a select lever operated by a driver is detected by an inhibitor switch, and a detected select position is a neutral position and/or a reverse position, ignition timing is retarded or fuel supply is reduced to reduce output torque of an engine, the output torque of the engine is also reduced when abnormal detection of the select position is determined due to a disconnection of the inhibitor switch or the like, thereby preventing transmission of excessive output torque to a frictional engaging element to achieve a reverse and driving force transmission members connecting to the frictional engaging element.

REFERENCES:
patent: 4419909 (1983-12-01), Opperud et al.
patent: 4838124 (1989-06-01), Hamano et al.
patent: 5103692 (1992-04-01), Shimanaka et al.
patent: 5171176 (1992-12-01), Gebhardt et al.
patent: 5216938 (1993-06-01), Yamaguchi

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