Interrelated power delivery controls – including engine control – Transmission control – Engine controlled by transmission
Patent
1998-01-30
2000-02-15
Wright, Dirk
Interrelated power delivery controls, including engine control
Transmission control
Engine controlled by transmission
F16D 1300
Patent
active
060246707
ABSTRACT:
Disclosed herein is a control apparatus for an automatic transmission. The control apparatus comprises an oil pressure control section for controlling engagement transition oil pressure which is supplied to friction engaging elements so that what is changed by a speed-change is changed along a locus of a predetermined target value. Also, the control apparatus comprises an engine torque control section for controlling a quantity of change in engine output torque during a speed-change so that a parameter whose value changes in parallel to a speed changing operation has an optimum change characteristic. The engagement transition oil pressure is corrected based on the quantity of change in the engine output torque in controlling the engagement transition oil pressure, and the quantity of change in the engine output torque is corrected based on the engagement transition oil pressure in controlling the quantity of change in the engine output torque.
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Kitagawa Ato
Oshima Kenichi
Sanada Kazushi
Totsuka Hirohiko
Jatco Corporation
Wright Dirk
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