Driveline shift quality in variable valve engine equipped...

Details Driveline shift quality in variable valve engine equipped... Driveline shift quality in variable valve engine equipped...

2005-08-08

2008-12-09

Ho, Ha D. (Department: 3681)

Interrelated power delivery controls, including engine control

Transmission control

Engine controlled by transmission

C477S102000, C123S090110, C123S090150

Reexamination Certificate

active

07462129

ABSTRACT:
In one example, a method for controlling powertrain operation in a vehicle is provided, the powertrain having an engine and an automatic transmission, the engine having at least an electrically actuated cylinder valve. The method includes changing gears from a first discreet gear ratio to a second discreet gear ratio of the transmission; and increasing engine torque during a torque phase of said gear change by changing operation of the electrically actuated cylinder valve, and decreasing engine torque during an inertia phase of said gear change.

REFERENCES:
patent: 4103655 (1978-08-01), Coles
patent: 5816976 (1998-10-01), Kuroiwa et al.
patent: 5879266 (1999-03-01), Sawamura et al.
patent: 5947863 (1999-09-01), Grob et al.
patent: 6612285 (2003-09-01), Ganoung
patent: 6830536 (2004-12-01), Tanaka et al.
patent: 6840887 (2005-01-01), Hrovat et al.
patent: 7240663 (2007-07-01), Lewis et al.
patent: 2003/0109357 (2003-06-01), Tabata
patent: 2004/0214687 (2004-10-01), Morisawa et al.
patent: 2005/0205063 (2005-09-01), Kolmanovsky et al.
patent: 2005/0205074 (2005-09-01), Gibson et al.

Affiliated with

Also associated with

Rating

Driveline shift quality in variable valve engine equipped... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Driveline shift quality in variable valve engine equipped..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driveline shift quality in variable valve engine equipped... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4023574