Shift control method of automatic transmission

Details Shift control method of automatic transmission Shift control method of automatic transmission

2007-12-28

2010-12-14

Ho, Ha D. (Department: 3655)

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

C477S136000, C477S141000, C477S156000

Reexamination Certificate

active

07850573

ABSTRACT:
A shift control method of an automatic transmission according to an exemplary embodiment of the present invention may control a shift from an N speed achieved by engagement of first and second frictional elements to an N-3 speed achieved by engagement of third and fourth frictional elements, wherein release of the second frictional element is completed after release of the first frictional element begins, and engagement of the fourth frictional element begins after engagement of the third frictional element begins, wherein the engagement of the third frictional element is completed after the release of the second frictional element is completed.

REFERENCES:
patent: 6270444 (2001-08-01), Tsutsui et al.
patent: 6626786 (2003-09-01), Hayabuchi et al.
patent: 6832976 (2004-12-01), Nishida et al.
patent: 6955629 (2005-10-01), Nishida et al.
patent: 6997843 (2006-02-01), Saitou

Affiliated with

Also associated with

Rating

Shift control method of automatic transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shift control method of automatic transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shift control method of automatic transmission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4170262