Control system for automotive automatic transmission

Details Control system for automotive automatic transmission Control system for automotive automatic transmission

1992-10-09

1993-11-16

Wright, Dirk

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74866, F16H 6102

Patent

active

052612970

ABSTRACT:
A control system for automatic transmission is provided in a motor vehicle having an internal combustion engine and an automatic transmission associated with the engine. The engine is operable on a fuel which is a mixture of gasoline and alcohol. The control system comprises an alcohol sensor for sensing the alcohol concentration in the fuel; a first device for deriving an engine load parameter which represents the load applied to the engine; a second device for correcting the engine load parameter with reference to the alcohol concentration sensed by the alcohol sensor; and a third device for controlling a line pressure of the transmission in accordance with the corrected engine load parameter.

REFERENCES:
patent: 4677878 (1987-07-01), Yamamori et al.
patent: 4843916 (1989-07-01), Bouta
patent: 5088350 (1992-02-01), Kurihara et al.
patent: 5767169 (1992-12-01), Saito et al.

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