Method and apparatus for shift control of an automatic...

Details Method and apparatus for shift control of an automatic... Method and apparatus for shift control of an automatic...

2007-07-24

2007-07-24

Le, David D. (Department: 3681)

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

C477S107000, C477S109000, C477S146000, C477S149000, C475S123000, C475S127000, C701S055000

Reexamination Certificate

active

11016208

ABSTRACT:
Whenever a 4 to 3 shift condition is satisfied during a 3 to 4 upshift, 4 to 3 shifting is started before the 3 to 4 shifting is finished. The 4 to 3 shifting is executed according to a predetermined hydraulic control pattern. Therefore, responsiveness in shifting is enhanced.

REFERENCES:
patent: 5596495 (1997-01-01), Brown et al.
patent: 5778331 (1998-07-01), Leising et al.
patent: 6334082 (2001-12-01), Jeon
patent: 6346063 (2002-02-01), Kondo et al.
patent: 2001-165295 (2001-06-01), None
patent: 100298776 (2001-06-01), None

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