Shift control apparatus for automatic transmission

Details Shift control apparatus for automatic transmission Shift control apparatus for automatic transmission

2005-06-28

2008-12-30

Pang, Roger L (Department: 3655)

Interrelated power delivery controls, including engine control

Transmission control

Engine controlled by transmission

C477S107000

Reexamination Certificate

active

07470212

ABSTRACT:
An engine output controller includes a delay timer which measures the period of time elapsed from a timing of a target hydraulic pressure of a release side hydraulic pressure, and control starts a predetermined period of time after a predetermined amount of torque increase is achieved. The engine output control stores maps of the predetermined periods of time and the amounts of torque increase corresponding to normal shifts, such as 3rd to 2nd and 4th to 3rd, and skip-shifts, such as 4th to 2nd, and selects the map corresponding to the type of downshift.

REFERENCES:
patent: 5921886 (1999-07-01), Takada et al.
patent: 6432015 (2002-08-01), Takahashi
patent: 6656087 (2003-12-01), Runde et al.
patent: 6749534 (2004-06-01), Watanabe et al.
patent: 05-338469 (1993-12-01), None
patent: 07-195963 (1995-08-01), None
patent: 10-131778 (1998-05-01), None

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