Abstract: A system, apparatus and method for resolving stack closure of a brake disk stack in a brake system is disclosed. In resolving the stack closure position, a force that can be applied by the reciprocating ram to the brake disk stack is limited, and then the reciprocating ram is commended to traverse into the brake disk stack. When the reciprocating ram contacts the brake disk stack and stops moving, the stopped position of the reciprocating ram is identified as the stack closure position.

Abstract: A brake control circuit for determining if a brake command from a brake pedal is valid is provided. The brake control circuit includes at least two independent channels configured to receive data indicative of brake pedal deflection for the brake pedal, and logic circuitry operatively coupled to the at least two independent channels. The logic circuitry is configured to generate a valid brake flag when the respective channels receive data that are within a predetermined range of one another, and to generate an invalid brake flag when the respective channels receive data that are not within a predetermined range of one another.

Abstract: A hub cap assembly couplable to an axle of a vehicle and operable to obtain data indicative of wheel velocity includes a housing, a hub cap rotatably coupled to said housing, and a speed sensor coupled to said hub cap. The assembly may be inserted into or otherwise coupled to an axle of a vehicle.