Motor vehicles – Having four wheels driven
Patent
1996-03-15
1998-09-01
Dickson, Paul N.
Motor vehicles
Having four wheels driven
180249, B60K 1734
Patent
active
057997489
ABSTRACT:
A system for detecting an operating state of an automobile free-wheel hub mechanism used for connecting and disconnecting a driveshaft to and from a wheel hub by engaging and disengaging a fixed gear firmly connected to the driveshaft for rotation with the driveshaft with and from a movable gear slidably splined to the inner periphery of a cylindrical housing of the wheel hub, comprises sensors for detecting a revolution speed of a road wheel having the wheel hub to generate a wheel-speed indicative signal, another sensors for detecting a revolution speed of the driveshaft to generate a driveshaft revolution-speed indicative signal, and a controller for detecting an operating state of the free-wheel hub mechanism on the basis of a deviation between a value of the wheel-speed indicative signal and a value of the driveshaft revolution-speed indicative signal.
REFERENCES:
patent: 4700797 (1987-10-01), Leiber
patent: 4757870 (1988-07-01), Torii et al.
patent: 4854414 (1989-08-01), Koide et al.
patent: 4989685 (1991-02-01), Matsuda
patent: 4991680 (1991-02-01), Shiba et al.
Dickson Paul N.
Nissan Motor Co,. Ltd.
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