Control apparatus for vehicle with continuously variable transmi

Details Control apparatus for vehicle with continuously variable transmi Control apparatus for vehicle with continuously variable transmi

1995-06-07

1997-03-18

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Continuously variable friction transmission

477 37, 477901, B60K 4114

Patent

active

056117485

ABSTRACT:
A control apparatus for a vehicle having a continuously variable transmission between an engine and a drive shaft prevents the transmission from shifting up when an accelerator is released on a curved uphill road, which also prevents transmission-gear-ratio hunting. A high-speed-side upper limit "imax" on the speed change ratio of the transmission is set according to a decreasing function with respect to the absolute value .vertline.R.THETA..vertline. of a hill-climbing resistance and a vehicle speed VSP. A target transmission speed change ratio "itgt", which is determined according to a target horsepower calculated from the hill-climbing resistance, is compared with the upper limit "imax", and if "itgt"> "imax", "itgt" is limited to "imax".

REFERENCES:
patent: 4335428 (1982-06-01), Miki et al.
patent: 4671138 (1987-06-01), Nobumoto et al.

Affiliated with

Also associated with

Rating

Control apparatus for vehicle with continuously variable transmi 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 apparatus for vehicle with continuously variable transmi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control apparatus for vehicle with continuously variable transmi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1702055