192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1989-11-27
1990-07-24
Lorence, Richard
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
192103C, 180197, 36442603, B60K 4102
Patent
active
049429507
ABSTRACT:
Method and apparatus for controlling an electromagnetic clutch which is incorporated in a power transmission system of a vehicle to transmit a torque of an engine to drive wheels, when the vehicle is started on a road surface having a low coefficient of friction. The method or apparatus comprises: a step or device for increasing progressively a transmission torque which is transmitted by the electromagnetic clutch; a step or device for detecting a slip of the drive wheels on the road surface; and a step or device for reducing, upon detection of the slip of the drive wheels, the transmission torque of the electromagnetic clutch until the drive wheels have ceased to slip on the road surface.
REFERENCES:
patent: 3863730 (1975-02-01), Wakamatsu et al.
patent: 3982509 (1976-09-01), Colling et al.
patent: 4344499 (1982-08-01), van der Lely et al.
patent: 4403683 (1983-09-01), Takano
patent: 4509625 (1985-04-01), Tellert
patent: 4558414 (1985-12-01), Sakakiyama
patent: 4620420 (1986-11-01), Gloss et al.
patent: 4796718 (1989-01-01), Thielen et al.
Hayashi Takashi
Shigematsu Takashi
Tokoro Setsuo
Watanabe Tomoyuki
Lorence Richard
Toyota Jidosha & Kabushiki Kaisha
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