Hydraulic control apparatus for automatic transmission

Details Hydraulic control apparatus for automatic transmission Hydraulic control apparatus for automatic transmission

2007-10-09

2007-10-09

Wright, Dirk (Department: 3681)

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid controlled mechanical clutch or brake

Reexamination Certificate

active

11234106

ABSTRACT:
An oil hydraulic circuit includes a B2apply control valve establishing communication between a second feedback oil channel connected to a feedback pressure chamber and a drain port, and between a D 1st speed oil channel and a drain port when SL pressure is supplied, and a B2control valve cutting off an R-range pressure oil channel from a B2oil channel, and establishing communication between the B2oil channel and the D 1st speed oil channel when SLU pressure is supplied. An ECU turns on a solenoid (SL) to supply SL pressure to the B2apply control valve, and turns on a linear solenoid (SLU) to supply SLU pressure to the B2control valve, when the shift lever is set at the R position during forward running.

REFERENCES:
patent: 5573478 (1996-11-01), Tsukamoto et al.
patent: 5697860 (1997-12-01), Shimei et al.
patent: 6846259 (2005-01-01), Fujimine et al.
patent: 5-322013 (1993-12-01), None
patent: 8-159275 (1996-06-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3893170