Slip control brake system for all wheel drive motor vehicles

Claim 1

A slip-controlled brake system for a wheeled motor vehicle including a plurality of axles, at least one of said axles being split, means for applying motive power to all wheels, a differential for each of said axles for compensating position differences between individual wheels of said vehicles, a plurality of wheel sensors equal in number to the number of wheels and adapted to determine a rotational velocity condition of said wheels and to develop a signal of said condition, analyzer means connected to each of said sensors for receiving said signals and to derive, by analysis and logical interpretation of said signals, at least one brake pressure control signal, a plurality of brake pressure modulators adapted to accept and be controlled by said control signal in a manner suitable to brake pressure in the event of imminent locking of a wheel brake, and further including a disconnecting clutch assembled in said at least one split axle, said analyzer means electrically coupled to said disconnecting clutch for disengaging said disconnecting clutch in response to said to least one brake pressure control signal whereby driving torque from said differential to a wheel is eliminated by said clutch upon derivation of a brake pressure control signal that is transmitted by said analyzer indicating need for slip control.