Control system for automatic transmission

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

F16H 6106

Patent

active

058038663

ABSTRACT:
During transmission shifts, a band brake is used in either a self-loosening direction in which an engaging force thereof is not sensitive to variations in hydraulic pressure or a self-tightening direction in which the engaging force is sensitive to variations in hydraulic pressure. In the self-loosening direction, a second regulated hydraulic pressure generated by a second pressure regulating valve (B-4 control valve) in accordance with a control hydraulic pressure generated by a second (throttle-pressure-control) linear solenoid valve in a margin control region thereof is supplied to a hydraulic servo of the fourth brake (band brake). In this clutch-to-clutch shift, a first regulated hydraulic pressure generated by a first pressure regulating valve (a shift-pressure control valve) in accordance with a control hydraulic pressure generated by a first (pressure-regulation) linear solenoid valve is supplied to a hydraulic servo of a third (UD direct) clutch. In the self tightening direction, the first regulated hydraulic pressure generated by the first pressure regulating valve (the shift-pressure control valve) is supplied to the hydraulic servo of the fourth brake (band brake).

REFERENCES:
patent: 5311795 (1994-05-01), Yoshimura 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 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, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for automatic transmission will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1277348

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