F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 61/04 (2006.01) F16H 61/10 (2006.01) F16H 61/14 (2006.01) F16H 59/46 (2006.01) F16H 61/02 (2006.01)
Patent
CA 2078385
An improved torque converter clutch (TCC) engagement control method utilizing a combination of pressure control and flow control methodologies to ensure consistently smooth and timely TCC engagement. The engagement is initiated with a pressure control methodology in which the duty cycle of a PWM actuator is selected to produce a desired pressure differential across the TCC clutch plate. However, if the flow conditions are such that the pressure control methodology fails to promptly initiate engagement of the TCC, as detected in relation to the speed difference across the torque converter, a flow control methodology is substituted for the pressure control to initiate clutch engagement. In this case, the duty cycle of the actuator is adjusted to a value which provides full or near-full fluid flow. This control is maintained for a predetermined period, or until the speed difference across the torque converter indicates initiation of TCC engagement. At such point, the pressure control methodology is resumed to complete the TCC engagement.
Nitz Larry Theodore
Rees Susan Lettie
Gowling Lafleur Henderson Llp
Saturn Corporation
LandOfFree
Control method for the engagement of a torque converter clutch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control method for the engagement of a torque converter clutch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control method for the engagement of a torque converter clutch will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1770722