Control method for magnetic powder clutch

Details Control method for magnetic powder clutch Control method for magnetic powder clutch

1987-05-29

1989-09-19

Bonck, Rodney H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 215, 192103R, B60K 4102, F16D 3702

Patent

active

048672874

ABSTRACT:
Disclosed is a control method for a magnetic powder clutch system including a magnetic powder clutch having an input shaft connected to an engine and an output shaft. In the method, the magnetic powder clutch is energized by an energizing strength which is determined based on a transmitting torque. The energizing strength is compensated with a predetermined correction factor to realize the control in high accuracy. Moreover, the correction factor is always updated in response to an error between the target engagement revolution speed and the detected actual engagement revolution speed. By correcting the energizing strength to diminish the error, the magnetic powder clutch is correctly engaged at the target engagement revolution speed.

REFERENCES:
patent: 4558772 (1985-12-01), Grimes et al.
patent: 4623052 (1986-11-01), Watanabe et al.
patent: 4638898 (1987-01-01), Braun
patent: 4678069 (1987-07-01), Yoshimura et al.
English abstract of Japanese Patent No. 60-164025, 8/27/85.

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