Control system for a clutch for a vehicle

Details Control system for a clutch for a vehicle Control system for a clutch for a vehicle

1988-01-19

1989-11-14

Diehl, Dwight G.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 0076, 192 356, 192 215, 192103R, B60K 4128, F16D 3702

Patent

active

048800945

ABSTRACT:
A system for controlling an electromagnetic clutch for a motor vehicle at transient state of driving condition of the motor vehicle. An actual engagement ratio is obtained in dependence on speeds of a drive member land a driven member of the clutch. A desired engagement ratio of the clutch is obtained in accordance with the speeds of the drive member and driven member. Clutch current is controlled so as to converge the actual engagement ratio on the desired engagement ratio. The transition of the change of the actual engagement ratio is observed and a correction signal is generated when the actual engagement ratio does not change in a converging direction. The clutch current is corrected by the correction signal.

REFERENCES:
patent: 4457411 (1984-07-01), Hiramatsu
patent: 4558772 (1985-12-01), Grimes et al.
patent: 4623052 (1986-11-01), Watanabe et al.
patent: 4660697 (1987-04-01), Yoneda et al.

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