Automatic transmission dynamic electronic pressure control based on desired powertrain output
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United States of America Patent
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Apr 2, 2002
Grant Date -
N/A
app pub date -
May 11, 1999
filing date -
May 11, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system and method for controlling a powertrain including an automatic transmission include determining a value representing requested powertrain output, determining a rotational speed representing current operating conditions, generating a command to initiate a ratio change in the automatic transmission, and determining a dynamic pressure for the automatic transmission during the ratio change based on the requested powertrain output and the rotational speed. The requested powertrain output may be a wheel torque determined in part by accelerator pedal position. A performance adder based on requested wheel torque may be provided to further enhance operation.
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