Control system for automotive automatic transmission
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United States of America Patent
Stats
-
Nov 16, 1993
Grant Date -
N/A
app pub date -
Oct 9, 1992
filing date -
Oct 9, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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