Patent ID: 8918261

Claim:
A braking system for a motor vehicle having front wheels and rear wheels, comprising: a primary braking system; a secondary braking system; a vehicle speed sensor; a brake pedal; a parking brake; and a processor coupled to the parking brake, the primary braking system, and the vehicle speed sensor, and configured to: engage the primary braking system when the brake pedal is applied; engage the primary braking system when the brake pedal is not applied, provided that the parking brake is actuated and the speed of the motor vehicle is at least a pre-determined speed; and engage the secondary braking system when the brake pedal is not applied, provided that the parking brake is actuated and the speed of the motor vehicle is less than the pre-determined speed; wherein: the primary braking system comprises one of an anti-lock brake system (ABS) and an electronic stability control (ESC) system coupled to the front wheels and configured to brake the front wheels when a skid situation is detected; and the processor is further configured to detect a failure in the ABS system or the ESC system and apply the primary braking system to the front wheels.