Control system/method for engine brake assisted shifting

Details Control system/method for engine brake assisted shifting Control system/method for engine brake assisted shifting

1993-08-10

1995-04-25

Pitts, Andrea L.

Interrelated power delivery controls, including engine control

Transmission control

With clutch control

477 78, 477 91, 477120, 477902, 3644241, B60K 4128

Patent

active

054094321

ABSTRACT:
A control method/system for controlling upshifting in an automated mechanical transmission system (10) provided with an engine compression brake (50) is provided. A control unit (54) is effective to operate the engine compression brake during a transmission upshift such that at initiation of an upshift the engine compression brake applies a minimum retarding torque to the engine, the retarding torque is then gradually increased to a maximum retarding torque value and, upon sensing that engine speed (ES) is within a predetermined value (REF.sub.1) of the synchronous value thereof, the retarding torque applied by the engine brake is caused to gradually decrease until such time as engine speed reaches the synchronous window therefor.

REFERENCES:
patent: 4361060 (1982-11-01), Smyth
patent: 4595986 (1986-06-01), Daubenspeck et al.
patent: 4648290 (1987-03-01), Dunkley et al.
patent: 4722248 (1988-02-01), Braun
patent: 4768636 (1988-09-01), Ito et al.
patent: 4905544 (1990-03-01), Ganoung
patent: 4933850 (1990-06-01), Wheeler
patent: 4945484 (1990-07-01), Cote et al.
patent: 5042327 (1991-08-01), Stainton
patent: 5050427 (1991-09-01), Cote et al.
patent: 5125294 (1992-06-01), Takashi et al.
patent: 5235877 (1993-08-01), Takahashi et al.
patent: 5285880 (1994-02-01), Minagawa et al.

Affiliated with

Also associated with

Rating

Control system/method for engine brake assisted shifting does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control system/method for engine brake assisted shifting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system/method for engine brake assisted shifting will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1564462