Control system for a four-wheel drive vehicle

Details Control system for a four-wheel drive vehicle Control system for a four-wheel drive vehicle

1981-09-18

1984-06-26

Krizmanich, George H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 9, 192 215, B60K 4124, F16D 3702

Patent

active

044561083

ABSTRACT:
A system for a four-wheel drive vehicle for automatically changing the transmission of the engine of the vehicle from two-wheel drive to four-wheel drive when braking. The transmission transmits power from the engine to two main driving wheels, and an electromagnetic clutch having a magnetizing coil is provided for transmitting the power of the engine to the two-wheels. A brake switch is provided for producing a signal when the brake pedal is depressed a predetermined stroke, and a control circuit is provided for allowing the clutch current to pass through the coil of the electromagnetic clutch when the signal from the brake switch is applied.

REFERENCES:
patent: 2227412 (1940-12-01), Stortz
patent: 2946238 (1960-07-01), Beyerstedt
patent: 3163272 (1964-12-01), Baumann
patent: 3628642 (1971-12-01), Ravenel
patent: 3656600 (1972-04-01), Kitano et al.

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