Adaptive pressure control for an automatic transmission

Details Adaptive pressure control for an automatic transmission Adaptive pressure control for an automatic transmission

1991-10-15

1995-07-18

Teska, Kevin J.

Boots, shoes, and leggings

36442401, 477150, 477161, 477154, 477163, 477143, 477129, 123674, 123686, 192 328, F16D 3100

Patent

active

054347793

ABSTRACT:
An improved adaptive transmission pressure control in which cumulative adaptive corrections are stored in a multi-cell memory array, the cells being associated with specified contiguous ranges of a vehicle operating parameter, such as engine throttle position. Periodically determined adaptive correction amounts are applied to a selected cell which includes the engine throttle setting measured at the initiation of the shift and to two or more cells associated with contiguous engine throttle ranges. In this way, a relatively large number of cells may be employed to minimize approximation errors, while maintaining a cell-to-cell continuum of pressure correction values. In operation, an electro-hydraulic pressure regulator is controlled as a combined function of a predefined pressure command obtained from a normal table look-up and a cumulative correction amount obtained from the memory array.

REFERENCES:
patent: 4283970 (1981-08-01), Vukovich
patent: 4488456 (1984-12-01), Taga et al.
patent: 4495576 (1985-01-01), Ito
patent: 4653350 (1987-03-01), Downs et al.
patent: 4742461 (1988-05-01), Eschrich et al.
patent: 4844041 (1989-07-01), Ave et al.
patent: 4981053 (1991-01-01), Yamaguchi
patent: 5052246 (1991-10-01), Yamaguchi
patent: 5151858 (1992-09-01), Milunas et al.
patent: 5157608 (1992-10-01), Sankpal et al.
patent: 5163342 (1992-11-01), Pollack et al.

Affiliated with

Also associated with

Rating

Adaptive pressure control for an automatic transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive pressure control for an automatic transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive pressure control for an automatic transmission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2421243