Method and apparatus for controlling a power transmission to mat

Details Method and apparatus for controlling a power transmission to mat Method and apparatus for controlling a power transmission to mat

1995-09-08

1997-03-18

Bonck, Rodney H.

Machine element or mechanism

Gearing

Interchangeably locked

192 363, B60K 4122

Patent

active

056112459

ABSTRACT:
A control system for shifting a vehicle transmission, such as in work vehicles, includes sensors for detecting the output speed of the vehicle engine, the output speed of the transmission and the vehicle ground speed. A controller receives signals from the sensors and command devices and controls engagement and disengagement of combinations of fluid clutches in the transmission to obtain desired gear ratios. The controller implements a ground-speed-matching control routine following operator-induced disengagement and re-engagement signals in which the controller compares the current ground speed to a threshold speed and enters into either a ground-speed-matching sequence or an alternative gear ratio selection sequence depending upon whether the ground speed is higher or lower than the threshold speed. Each routine results in selection of a gear ratio. The selected gear ratio is then limited by the last commanded gear ratio. The gear ratio selected in either the alternative sequence of the ground-speed-matching sequence is then engaged by the controller.

REFERENCES:
patent: 3865209 (1975-02-01), Aihara et al.
patent: 4425620 (1984-01-01), Batcheller et al.
patent: 5007299 (1991-04-01), Bulgrien
patent: 5012416 (1991-04-01), Bulgrien et al.
patent: 5012690 (1991-05-01), Bulgrien
patent: 5036718 (1991-08-01), Bulgrien
patent: 5054591 (1991-10-01), Braun
patent: 5249658 (1993-10-01), Goeckner et al.
patent: 5323669 (1994-06-01), Steeby et al.

Affiliated with

Also associated with

Rating

Method and apparatus for controlling a power transmission to mat 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 and apparatus for controlling a power transmission to mat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling a power transmission to mat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1698668