Automatic transmission control apparatus

Details Automatic transmission control apparatus Automatic transmission control apparatus

1996-05-08

1998-01-13

Ta, Khoi Q.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

477117, 477156, F16H 6106

Patent

active

057073163

ABSTRACT:
An automatic transmission control apparatus has a clutch, a hydraulic servo for the clutch, a fluid pressure control unit, a range shift detector, and an electronic control unit. The fluid pressure control unit has a manual valve, a pressure regulating valve device, and a changeover valve device. The electronic control unit controls the changeover valve device and the pressure regulating valve device. Immediately after a shift to the forward driving range, the electronic control unit holds the changeover valve device in such a state that a forward driving range pressure is supplied without passing through the pressure regulating valve device. Then, the electronic control unit shifts the changeover valve device to such a state that a regulated pressure is supplied from the pressure regulating valve device, which has been switched to a pressure regulating state by the electronic control unit. This control operation precisely sets the fluid pressure changeover timing and the initial fluid pressure.

REFERENCES:
patent: 4718525 (1988-01-01), Yamaguchi
patent: 5078028 (1992-01-01), Ishikawa et al.
patent: 5090270 (1992-02-01), Suzuki
patent: 5301572 (1994-04-01), Tanaka et al.
patent: 5343782 (1994-09-01), Jamzadeh
patent: 5385511 (1995-01-01), Iizuka
patent: 5558599 (1996-09-01), Tsukamoto et al.

Affiliated with

Also associated with

Rating

Automatic transmission control apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-321953