Closed-loop clutch control of an automatic shift transmission

Details Closed-loop clutch control of an automatic shift transmission Closed-loop clutch control of an automatic shift transmission

1990-02-20

1991-09-03

Cangialosi, Salvatore

Boots, shoes, and leggings

74866, B60K 4178

Patent

active

050461761

ABSTRACT:
An improved closed-loop transmission shift control in which the pressures are regulated in a manner to accelerate/decelerate the input and output shafts or the transmission in relation the progression of the shift. The control requires dynamic knowledge of the transmission input and output torques, and the preferred mechanization of the present invention employs an estimation of the input and output torque effects so that the control is carried out with only input and output shaft speed measurements. The estimations are adjusted based on the difference between the expected and actual input and output shaft speed values, so as to compensate for torque control errors as well as torque estimation errors.

REFERENCES:
patent: 3754482 (1973-08-01), Sanders et al.
patent: 4724723 (1988-02-01), Lockhart et al.
patent: 4821190 (1989-04-01), Patil
patent: 4893527 (1990-01-01), Furusawa et al.
patent: 4942530 (1990-07-01), Boda et al.
patent: 4953090 (1990-08-01), Narita

Affiliated with

Also associated with

Rating

Closed-loop clutch control of an automatic shift 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 Closed-loop clutch control of an automatic shift transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closed-loop clutch control of an automatic shift transmission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1015745