System for and method of controlling lockup clutch

Details System for and method of controlling lockup clutch System for and method of controlling lockup clutch

1993-01-08

1994-07-26

Braun, Leslie A.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

192 0075, 192103F, 477 87, 477174, B60K 4102

Patent

active

053320735

ABSTRACT:
A control system for a lockup clutch measures an actual time required from start of engagement of the lockup clutch until completion of engagement of the lockup clutch, and sets a reference time required from start of engagement of the lockup clutch until completion of engagement of the lockup clutch. The system modifies a change rate of the duty ratio to the time so as to reduce a difference between the actual time and the reference time.

REFERENCES:
patent: 4725951 (1988-02-01), Niikura
patent: 4760902 (1988-08-01), Bellanger
patent: 4825991 (1989-05-01), Ohkuho
patent: 4880094 (1989-11-01), Ohkumo
patent: 5060158 (1991-10-01), Kono et al.
patent: 5060770 (1991-10-01), Hirano et al.
patent: 5065849 (1991-11-01), Kono et al.
patent: 5160002 (1992-11-01), Suzuki
patent: 5160003 (1993-11-01), Suzuki

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