Multistage automatic transmission

Interrelated power delivery controls – including engine control – Clutch control – Condition responsive control

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C477S070000, C477S180000, C074S336001

Reexamination Certificate

active

06949051

ABSTRACT:
A device is provided that issues a vehicle speed signal representative of a vehicle speed. A control unit is configured to carry out when, upon the transmission assuming the second speed, the vehicle speed represented by the vehicle speed signal becomes equal to or lower than a first predetermined speed, starting operation for fully releasing the engaged condition of the first clutch; when thereafter the vehicle speed becomes equal to or lower than a second predetermined speed that is lower than the first predetermined speed, starting operation for releasing the engaged condition of the second clutch; and when thereafter the vehicle speed becomes equal to or lower than a third predetermined speed that is lower than the second predetermined speed, starting operation for fully releasing the engaged condition of the second clutch and starting operation for engaging the first clutch from the fully released condition of the same.

REFERENCES:
patent: 4790418 (1988-12-01), Brown et al.
patent: 6286381 (2001-09-01), Reed et al.
patent: 6463821 (2002-10-01), Reed et al.
patent: 6679134 (2004-01-01), Shigyo
patent: 6869382 (2005-03-01), Leising et al.
patent: 6881171 (2005-04-01), Kuhstrebe et al.
patent: 6887184 (2005-05-01), Buchanan et al.
patent: 11-82729 (1999-03-01), None
patent: 11-201271 (1999-07-01), None
patent: 2001-295898 (2001-10-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Multistage 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 Multistage automatic transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multistage automatic transmission will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3399629

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.