Slip control apparatus for motor vehicle lock-up clutch

Details Slip control apparatus for motor vehicle lock-up clutch Slip control apparatus for motor vehicle lock-up clutch

1995-07-18

1997-03-25

Lorence, Richard M.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

477176, 477906, F16H 6114, F16H 6112, F16H 4502

Patent

active

056135831

ABSTRACT:
An apparatus including a slip control device for controlling an amount of slip of a lock-up clutch disposed between pump and turbine impellers in a power transmission system of a motor vehicle, a slip-parameter monitoring device for detecting the actual slip speed of the lock-up clutch or a control error between actual and target slip speeds of the lock-up clutch, a summing device for obtaining a sum of values of the actual slip speed or control error detected by the slip-parameter monitoring device for a predetermined period of time, and a defect detecting device for determining the presence or absence of a defect in slip control of the lock-up clutch by the slip control device, on the basis of the sum as compared with a predetermined reference.

REFERENCES:
patent: 4468988 (1984-09-01), Hiramatsu
patent: 4582185 (1986-04-01), Grimes et al.
patent: 4953677 (1990-09-01), Aoki et al.
patent: 5527233 (1996-06-01), Tabata et al.

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