Method for controlling an automatic transmission gear ratio shifts
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United States of America Patent
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Oct 1, 2002
Grant Date -
N/A
app pub date -
Feb 9, 2000
filing date -
Jul 2, 1997
priority date (Note) -
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Abstract
A method for blocking and releasing gear ratios in a vehicle equipped with an automatic gear box. The process includes combined functions F1, F2, F3 in which F1 is a function for blocking a passage of a transmission ratio during a first time delay, F2 is a function for blocking passage of a ratio in response to an instability of a fuel throttle opening angle, and F3 is a function for blocking passage of a ratio in response to a deceleration of the vehicle.
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