Control apparatus for vehicular automatic transmission

Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

74867, 74868, B60K 4106, F16H 5902

Patent

active

052937909

ABSTRACT:
In a control apparatus for a vehicular automatic transmission having transmission trains of five forward speeds or more, the transmission trains are divided into two groups of a low-speed system made up of relatively low-speed transmission trains and a high-speed system made up of relatively high-speed transmission trains. A main shift valve is provided for selectively supplying pressurized oil supplied from a manual valve through a first oil supply passage to an oil passage for the low-speed system and to an oil passage for the high-speed system. A shift valve unit for the low-speed system, which unit has one or more shift valves for selectively establishing transmission trains belonging to the low-speed system, is interposed in the oil passage for the low-speed system. A shift valve unit for the high-speed system, which unit has one or more shift valves for selectively establishing transmission trains belonging to the high-speed system, is interposed in the oil passage for the high-speed system.

REFERENCES:
patent: 4476747 (1984-10-01), Kawamoto
patent: 4709596 (1987-12-01), Boda et al.
patent: 4718310 (1988-01-01), Shindo et al.
patent: 4722250 (1988-02-01), Sumiya et al.
patent: 4727774 (1988-03-01), Sumiya et al.
patent: 4850251 (1989-07-01), Kuwayama et al.
patent: 4901603 (1990-02-01), Ishikawa
patent: 4903550 (1990-02-01), Kuwayama et al.
patent: 4991466 (1991-02-01), Hayasaki
patent: 4995285 (1991-02-01), Hayakawa et al.
patent: 5050460 (1991-09-01), Sugano
Patent Abstracts of Japan, Pub. No. JP60014644, Jan. 25, 1985.
Patent Abstracts of Japan, Pub. No. JP63180756, Jul. 25, 1988.
Patent Abstracts of Japan, Pub. No. JP3134632, Jun. 7, 1991.
Patent Abstracts of Japan, Pub. No. JP3282052, Dec. 12, 1991.

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

Rate now

     

Profile ID: LFUS-PAI-O-1530183

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