Patent ID: 6371250
Filing Date: 2002-04-16
Classification: B60G,B60T,F16D

Abstract:
A vehicle wheel brake system for a wheel suspension assembly and having an anti-lock braking system (â€œABSâ€ ) to provide a higher resolution brake apply and brake release relative to an ABS system having a single, fixed brake disc, the brake system comprising:a mounting hub for a road wheel mounted on the wheel suspension assembly for rotation about a rotational axis; at least two slidable brake discs mounted to slide axially along the hub between braking and off-brake positions; a caliper including a fixed bridge and at least four (4) braking pads mounted on the fixed bridge to provide four braking surfaces for braking engagement with the opposing sides of each of the brake discs; a pulse creator mounted on the hub for generating pulses; a sensor mounted on the wheel suspension assembly for sensing pulses from the pulse creator and for providing signals with respect to the rotational condition of the road wheel; an ABS controller connected to the sensor and providing signals when the wheel condition is within preset parameters relative to the speed of the vehicle to develop a theoretical deceleration curve for the stopping of the vehicle within a predetermined distance; and a brake actuator system operable manually by the vehicle passenger and operable automatically by the ABS controller to operate the caliper to slide the brake discs axially and to cause application of the four brake pads at a pressure of about one-half or less of the pressure of operation of the fixed, brake disc system and a frequency of brake apply and release of at least double the frequency of brake apply and release of the fixed, brake disc system.