Control of gear shifting in automatic transmission
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 21, 1992
Grant Date -
N/A
app pub date -
May 21, 1991
filing date -
May 22, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an automatic transmission of a motor vehicle, a torque of a transmission output member is detected, after the detected torque has dropped at a rate greater than a predetermined value after generation of a gear shifting command signal, a length of time elapsed thereafter is measured, a pressurized hydraulic fluid is modified as a predetermined function of the length of time measured, and a hydraulically actuable coupling is actuated by the modified pressurized hydraulic fluid.
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