Control system for automatic transmission producing shock-free shift
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United States of America Patent
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-
Jan 17, 1989
Grant Date -
N/A
app pub date -
Aug 18, 1986
filing date -
Aug 16, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A control system for an automatic transmission is disclosed. The control system features detecting output shaft torque, evaluating a pattern of variation detected of the output shaft torque during shifting, scheduling a variation of fluid pressure to be supplied to a friction element in response to the result of evaluation, and regulating a fluid pressure supplied to the friction element in response to the variation of fluid pressure scheduled.
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