Transmission control systems with shift determination based on pedal fluctuations within limits which vary with engine speed
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United States of America Patent
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-
Oct 5, 1999
Grant Date -
N/A
app pub date -
Oct 9, 1997
filing date -
Feb 10, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vehicle transmission control system in which a central control unit issues signals to an associated main drive clutch actuator and to ratio actuating means to effect changes in the operative ratio of an associated transmission in accordance with a predetermined shift point map. When the shift point map indicates that a ratio shift is appropriate, the system tests for fluctuations in the position of the an associated engine accelerator pedal and only actions the shift if the degree of fluctuation of the accelerator pedal position is judged acceptable. The acceptable level of accelerator pedal fluctuation preferably varies with engine speed.
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