Method and apparatus for controlling an electromagnetic clutch f

Details Method and apparatus for controlling an electromagnetic clutch f Method and apparatus for controlling an electromagnetic clutch f

1985-07-15

1987-12-29

Bonck, Rodney H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 0076, 192 0096, 192 215, 192103R, F16D 3702, B60K 4102

Patent

active

047154829

ABSTRACT:
A method and an apparatus of controlling an electromagnetic clutch incorporated in a power transmission system of a vehicle to transmit an output of an engine to the drive wheels of the vehicle is disclosed. An amount of electric current applied to the clutch is regulated to control an engaging action of said electromagnetic clutch, based on either a variation in rotating speed or torque of an output shaft of the electromagnetic clutch, or based on the frequency or number of variations per unit time in rotating speed or torque of the output shaft, as compared with the frequency or number of ignitions or combustions per unit time of the engine. In this way a variation in output torque of the engine is absorbed by the electromagnetic clutch for improved drivability, while a transmission power loss in the clutch is kept to a minimum for maximum fuel economy.

REFERENCES:
patent: 3163272 (1964-12-01), Baumann
patent: 3203518 (1965-08-01), Peras
patent: 4449617 (1984-05-01), Sakakiyama et al.
patent: 4457411 (1984-07-01), Hiramatsu
patent: 4480732 (1984-11-01), Takano
patent: 4550816 (1985-11-01), Sakakiyama

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