Duty solenoid valve control system for an automatic transmission

Details Duty solenoid valve control system for an automatic transmission Duty solenoid valve control system for an automatic transmission

1989-04-25

1991-03-12

Wright, Dirk

Machine element or mechanism

Rotary driven device adjustable during operation relative to...

Screw and nut adjusting means

192 82T, B60K 4118

Patent

active

049984497

ABSTRACT:
In an automatic transmission, a hydraulic pressure control valve produces hydraulic pressure according to a pilot pressure fed thereto. A duty solenoid valve controls the pilot pressure. An oil temperature sensor detects the temperature of the hydraulic oil and a driving period changing circuit changes the driving period of the duty solenoid valve according to the temperature of the hydraulic oil so that the driving period is long when the temperature of the hydraulic oil is low and short when the temperature of the hydraulic oil is high.

REFERENCES:
patent: 4468988 (1984-09-01), Hiramatsu
patent: 4762213 (1988-08-01), Watanabe
patent: 4779489 (1988-10-01), Haley
patent: 4843913 (1989-07-01), Miyawaki

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-442406