Lockup control or torque converter

Details Lockup control or torque converter Lockup control or torque converter

2005-09-13

2005-09-13

Lewis, Tisha (Department: 3681)

Interrelated power delivery controls, including engine control

Transmission control

Including fluid drive

C477S061000, C477S064000, C477S169000, C477S181000

Reexamination Certificate

active

06942597

ABSTRACT:
An engaging force of a pump impeller (1a) connected to an engine (21) and a turbine runner (1b) connected to an automatic transmission (23) is controlled by a controller (5). The controller (5) determines a target relative rotation speed of the pump impeller (1a) and the turbine runner (1b), and performs feedback control of the engaging force such that the difference between the target relative rotation speed and the real relative rotation speed is decreased. The controller (5) also performs feedforward control of the engaging force in a increasing direction. When the engine (21) is in a predetermined engine-stall prevention condition, the controller (5) prohibits the feedforward control so as to prevent an interference between feedback control and feedforward control.

REFERENCES:
patent: 6066072 (2000-05-01), Adachi
patent: 6086513 (2000-07-01), Tominaga
patent: 6820597 (2004-11-01), Cullen et al.

Affiliated with

Also associated with

Rating

Lockup control or torque converter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lockup control or torque converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lockup control or torque converter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3383262