Shift inhibit control for multi-mode hybrid drive

Details Shift inhibit control for multi-mode hybrid drive Shift inhibit control for multi-mode hybrid drive

2006-03-07

2006-03-07

Zanelli, Michael J. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

C477S039000

Reexamination Certificate

active

07010406

ABSTRACT:
An electrically variable transmission has a pair of clutches and a first mode when the first clutch is applied and the second clutch released, a second mode when the second clutch is applied and the first clutch released, and a fixed-ratio mode when both clutches are applied. Upshifts and downshifts out of fixed-ratio are accomplished in accordance with a control based upon shift confidence factors determined in accordance with proportional and derivative input speed error quantities. Shift cycling is avoided by applying a variety of conditional tests intended to inhibit return to fixed-ratio operation.

REFERENCES:
patent: 5737712 (1998-04-01), Han et al.
patent: 6319172 (2001-11-01), Steinmetz et al.
patent: 6540631 (2003-04-01), Holmes
patent: 6551208 (2003-04-01), Holmes et al.
patent: 6575866 (2003-06-01), Bowen
patent: 6579201 (2003-06-01), Bowen
patent: 6837816 (2005-01-01), Tsai et al.
patent: 2005/0049100 (2005-03-01), Ai et al.

Affiliated with

Also associated with

Rating

Shift inhibit control for multi-mode hybrid drive 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 inhibit control for multi-mode hybrid drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shift inhibit control for multi-mode hybrid drive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3576988