Upshift control method of an automatic transmission

Details Upshift control method of an automatic transmission Upshift control method of an automatic transmission

2006-12-12

2006-12-12

Wright, Dirk (Department: 3681)

Interrelated power delivery controls, including engine control

Transmission control

With clutch control

Reexamination Certificate

active

07147588

ABSTRACT:
Fuel mileage and shift feel are significantly enhanced from an upshift control method of an automatic transmission that includes determining whether a fuel cut control is executed when the damper clutch is in the direct engagement state before an upshift. Performing a hydraulic pressure duty control for the damper clutch, on the basis of at least one control parameter, such that a shift feel is enhanced while the upshift is being progressed and the fuel cut control is executed.

REFERENCES:
patent: 5649881 (1997-07-01), Iizuka
patent: 6102831 (2000-08-01), Wakahara et al.
patent: 6773372 (2004-08-01), Matsubara et al.
patent: 6860833 (2005-03-01), Ayabe
patent: 07-279700 (1995-10-01), None

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