Method of controlling speed reduction ratio for a continuously v

Details Method of controlling speed reduction ratio for a continuously v Method of controlling speed reduction ratio for a continuously v

1988-12-16

1990-09-18

Look, Edward K.

Power plants

Pressure fluid source and motor

Methods of operation

60487, 74866, 3644241, F16H 6142

Patent

active

049569724

ABSTRACT:
The speed reduction ratio of a continuously variable speed transmission for transmitting engine power with continuously variable speed to drive road wheels is controlled by detecting a parameter representing a driver's intention of acceleration or deceleration, establishing a reference engine speed corresponding to the detected parameter, and controlling the speed reduction ratio so as to equalize an actual engine speed with the reference engine speed, at a predetermined time interval. When the actual engine speed is lower than the reference engine speed, a controlling ouput value for the speed reduction ratio for bringing the actual engine speed into agreement with the reference engine speed is established based on the difference between the actual engine speed and the reference engine speed, and a predicted engine speed after elapse of the predetermined time interval is calculated based on the rate of =change of the actual engine speed. When the predicted engine speed is higher than the reference engine speed, the controlling output value is corrected to lower the predicted engine speed below the reference engine speed after elapse of the predetermined time interval.

REFERENCES:
patent: 4229998 (1980-10-01), Mizuno et al.
patent: 4534707 (1985-08-01), Mitchell
patent: 4637279 (1987-01-01), Itoh et al.
patent: 4653006 (1987-03-01), Osanai et al.
patent: 4663990 (1987-05-01), Itoh et al.
patent: 4672811 (1987-06-01), Yoshida et al.
patent: 4683779 (1987-04-01), Osanai et al.
patent: 4811225 (1989-03-01), Petzold et al.

Affiliated with

Also associated with

Rating

Method of controlling speed reduction ratio for a continuously v does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of controlling speed reduction ratio for a continuously v, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of controlling speed reduction ratio for a continuously v will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1565488