Control system for automatic transmission for vehicle

Interrelated power delivery controls – including engine control – Transmission control – Transmission controlled by engine

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

477154, 477155, 477156, 477159, 477162, 477163, F16H 5904, F16H 5914, F16H 5936, F16H 6106

Patent

active

056625499

ABSTRACT:
A control system for an automatic transmission for a vehicle provides an enhancement in a shifting characteristic in a manually shifting mode by controlling an operating hydraulic pressure for hydraulic engage elements in an appropriate manner. In a first range from the output of a shifting command to a time point when a timer TOIPU reaches a counting-up value, or a time point when the slip rate ECL of the hydraulic engage elements exceeds a value YECLIPUS, the operating hydraulic pressure is set at a preset value depending upon the type of shifting. In a second range from the end of the first range to a time point when the timer TOIPU reaches a counting-up value, or a time point when a slip rate ECL exceeds a value TECLIPUS, and in a third range from the end of the second range to a time point when a timer TKAK reaches a counting-up value, the operating hydraulic pressure QAT is set at a value corresponding to an engine torque or a transmission input torque.

REFERENCES:
patent: 3718056 (1973-02-01), Felder et al.
patent: 4046032 (1977-09-01), Braun et al.
patent: 4365526 (1982-12-01), Suga
patent: 4790217 (1988-12-01), Kawano
patent: 4876923 (1989-10-01), Crandall
patent: 4913004 (1990-04-01), Panoushek et al.
patent: 4955259 (1990-09-01), Narita
patent: 5351570 (1994-10-01), Mizunuma et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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

Rate now

     

Profile ID: LFUS-PAI-O-303613

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.