Speed ratio controller and control method of automatic transmiss

Details Speed ratio controller and control method of automatic transmiss Speed ratio controller and control method of automatic transmiss

1999-06-23

2000-11-14

Estremsky, Sherry

Interrelated power delivery controls, including engine control

Transmission control

Continuously variable friction transmission

477 43, B60K 4144

Patent

active

061463078

ABSTRACT:
In a vehicle automatic transmission, a controller (61) feedback controls a speed ratio command signal by proportional/integral/differential (PID) control so as to minimize a deviation between a transient target speed ratio and a real speed ratio. When a difference between the command signal and that of the preceding control cycle is larger than a predetermined value, the controller (61) prohibits the increase of an integral correction amount of the PID control in the next control cycle. In this way, continuous increase of the feedback correction amount while the transmission can not follow the command signal is suppressed.

REFERENCES:
patent: 5612873 (1997-03-01), Ogawa
patent: 5669845 (1997-09-01), Muramoto et al.
patent: 5707313 (1998-01-01), Suzuki
patent: 5984829 (1999-11-01), Minagawa et al.

Affiliated with

Also associated with

Rating

Speed ratio controller and control method of automatic transmiss does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2060732