Shift control system for automatic transmissions

Details Shift control system for automatic transmissions Shift control system for automatic transmissions

1991-07-05

1992-03-24

Braun, Leslie A.

Machine element or mechanism

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

Preselected indexed position

3644241, F16H 5922, F16H 5948

Patent

active

050977253

ABSTRACT:
A shift control system for shifting an automatic transmission of a vehicle up or down by supplying an actuator of the transmission with a shift control signal provided according to a predetermined shift control schedule. The shift control system includes a retarder for delaying the shift control signal for a predetermined time when current vehicle speed is lower than a specified speed and a shift canceling arrangement for canceling the shift control signal when the vehicle slows down with a throttle valve near or in its idle position. The control system further includes a delay canceling arrangement for disabling the retarder so as not to delay the shift control signal when current vehicle speed is higher than the specified speed within the predetermined time.

REFERENCES:
patent: 4669335 (1987-06-01), Matsuoka et al.
patent: 4732055 (1988-03-01), Takuo et al.
patent: 4823643 (1989-04-01), Koshizawa
patent: 4829435 (1989-05-01), Isono
patent: 4845621 (1989-07-01), Kawata et al.
patent: 4846020 (1989-07-01), Kondo et al.
patent: 5022286 (1991-06-01), Takizawa

Affiliated with

Also associated with

Rating

Shift control system for automatic transmissions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shift control system for automatic transmissions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shift control system for automatic transmissions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2001755