Hydraulic control device of automatic transmission more smooth i

Details Hydraulic control device of automatic transmission more smooth i Hydraulic control device of automatic transmission more smooth i

1990-09-19

1992-05-19

Braun, Leslie A.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74866, 3644241, B60K 4106

Patent

active

051137259

ABSTRACT:
A hydraulic control device is provided for automatic transmission in a vehicle such as an automobile. The transmission includes a combination of a gear mechanism and friction engaging devices which allows engagement of a particular first speed stage, such as first gear, and a particular second speed stage, such as second gear, according to selective engagement and disengagement of the friction engaging devices. Engine braking is not provided in the first speed stage, but is provided in the second speed stage when an under-D range is selected by the manual shift valve. Low coast upshifting is thus performed more smoothly. The shift from the first speed stage to the second speed stage is also completed more slowly than any other shift.

REFERENCES:
patent: 3823621 (1974-07-01), Kubo et al.
patent: 4512212 (1985-04-01), Ishikawa
patent: 4724725 (1988-02-01), Harada et al.
patent: 4745826 (1988-05-01), Nishikawa et al.
patent: 4776240 (1988-10-01), Miki
patent: 4856383 (1989-08-01), Rosen
patent: 4858500 (1989-08-01), Harada et al.
patent: 4953091 (1990-08-01), Baltusis et al.
patent: 5010788 (1991-04-01), Sugano et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2411982