Torque converter clutch solenoid functional test

Details Torque converter clutch solenoid functional test Torque converter clutch solenoid functional test

1996-08-20

1998-11-10

Nguyen, Tan Q.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

701 67, 731181, 477 65, 477169, G01M 1500

Patent

active

058358765

ABSTRACT:
A method and system for testing the functionality of a solenoid used to change the apply state of a torque converter clutch in a vehicle having an electronic control unit and a driveline system including an engine, a transmission, a torque converter. A first torque converter speed ratio is established. The commanded apply state of the torque converter clutch is determined, then a second torque converter speed ratio is calculated using engine speed and output shaft speed. The functionality of the torque converter clutch solenoid is established by determining whether the torque converter clutch solenoid has changed the applied state of the torque converter clutch by performing a comparison of the first and second torque converter speed ratios.

REFERENCES:
patent: 4386521 (1983-06-01), Hamada et al.
patent: 4805750 (1989-02-01), Nitz
patent: 4843551 (1989-06-01), Milunas
patent: 5027647 (1991-07-01), Shimanaka
patent: 5029087 (1991-07-01), Cowan et al.
patent: 5046175 (1991-09-01), Lentz et al.
patent: 5174137 (1992-12-01), Kato et al.
patent: 5233890 (1993-08-01), Aldrich, III et al.
patent: 5323320 (1994-06-01), Hathaway et al.
patent: 5345817 (1994-09-01), Grenn et al.
patent: 5383825 (1995-01-01), El-Khoury et al.
patent: 5389046 (1995-02-01), Timte et al.
patent: 5413539 (1995-05-01), Leonard et al.
patent: 5445016 (1995-08-01), Neigebauer
patent: 5484353 (1996-01-01), Lux et al.
patent: 5484354 (1996-01-01), Vukovich et al.
patent: 5515272 (1996-05-01), Sakai et al.
patent: 5521818 (1996-05-01), Palansky et al.
patent: 5609550 (1997-03-01), Saxena et al.

Affiliated with

Also associated with

Rating

Torque converter clutch solenoid functional test does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Torque converter clutch solenoid functional test, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Torque converter clutch solenoid functional test will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1528612