Shift control method and apparatus of automatic transmission...

Details Shift control method and apparatus of automatic transmission... Shift control method and apparatus of automatic transmission...

2007-09-25

2007-09-25

Camby, Richard M. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

C701S056000, C701S066000

Reexamination Certificate

active

11647717

ABSTRACT:
When a sport mode shifting request occurs during gear shifting of an automatic transmission according to a vehicle running state, a transmission control unit determines whether or not to accept the sport mode shifting request on the basis of an expected turbine speed at a target speed of currently controlled upshift and an expected turbine speed at a final target speed requested by the sport mode shifting request. By such a scheme, shift shock is reduced and responsiveness is enhanced.

REFERENCES:
patent: 5743826 (1998-04-01), Usuki et al.
patent: 6949050 (2005-09-01), Takatori et al.
patent: 6997843 (2006-02-01), Saitou

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