Rotation transmission device

Details Rotation transmission device Rotation transmission device

1998-11-24

2000-09-26

Lorence, Richard M.

192 clutches and power-stop control

Transmission and brake

Motor vehicle

192222, 192 35, 192 38, 192 524, B60K 2308

Patent

active

061231835

ABSTRACT:
A rotation transmission device including a clutch having an inner member, an outer ring, and engaging elements provided between the inner member and the outer ring for selective transmission and shutoff of rotation power between the inner member and the outer ring, and an electromagnetic clutch having an electromagnetic coil for locking and disengaging the clutch. When the clutch is not engaged, a current of a lower level than required to lock the clutch is supplied to the electromagnetic coil of the electromagnetic clutch to shorten the response time. In another method, when DIRECT-CONNECT 4WD mode is selected, a current is intermittently supplied to an electromagnetic coil to reduce power consumption and heat buildup.

REFERENCES:
patent: 3300002 (1967-01-01), Roper
patent: 3907083 (1975-09-01), Nieder
patent: 4030581 (1977-06-01), Giometti
patent: 4377223 (1983-03-01), Sakakiyama et al.
patent: 4509091 (1985-04-01), Booth
patent: 4629041 (1986-12-01), Malherbe
patent: 5275261 (1994-01-01), Vranish
patent: 5348126 (1994-09-01), Gao

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