Double transition downshift control for an automatic transmissio

Details Double transition downshift control for an automatic transmissio Double transition downshift control for an automatic transmissio

1991-02-07

1991-08-13

Herrmann, Allan D.

Machine element or mechanism

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

Preselected indexed position

74867, 74868, B60K 4118

Patent

active

050386360

ABSTRACT:
An improved control method for properly coordinating a double transition downshift. The state changes of the various clutches of the transmission are sequenced in relation to a dynamic measure of the transmission speed ratio so as to provide consistent high quality shifting. Adaptive pressure controls are employed in conjunction with the sequencing to compensate for variability.

REFERENCES:
patent: 4495576 (1985-01-01), Ito
patent: 4674364 (1987-06-01), Shindo et al.
patent: 4690017 (1987-09-01), Taniguchi et al.
patent: 4700591 (1987-10-01), Yasue et al.
patent: 4718310 (1988-01-01), Shindo et al.
patent: 4722247 (1988-02-01), Shindo et al.
patent: 4744031 (1988-05-01), Takeda et al.
patent: 4796490 (1989-01-01), Butts et al.
patent: 4845618 (1989-07-01), Narita
patent: 4967356 (1990-10-01), Mori

Affiliated with

Also associated with

Rating

Double transition downshift control for an automatic transmissio does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1519482