Control device and control method for automatic transmission for vehicle
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United States of America Patent
Stats
-
Jul 5, 1994
Grant Date -
N/A
app pub date -
Oct 2, 1992
filing date -
Oct 2, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a driving zone where a torque converter is to be locked up, a lockup force of a lockup clutch is weakened in the deceleration driving state compared with that in the non-deceleration driving state. Moreover, during transition from the deceleration driving state to the non-deceleration driving state, increase control of the lockup force is forcedly delayed for a predetermined time. By this, during acceleration from the deceleration driving state, the clutch is made to slip with a rapid increase in engine output torque and a rise in the engine output torque is buffered by the lockup clutch.
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