Patent ID: 8494743

Claim:
A speed control system for a motor vehicle having an internal combustion engine with air intake manifold, igniters, fuel injectors, electronic controls for regulating the operations of the igniters and fuel injectors, and a brake pedal for applying the vehicle's brakes comprising: a brake switch for producing an electric first signal when the brake pedal is depressed, a vacuum switch operably connected to the air intake manifold of the vehicle for producing an electric second signal when vacuum pressure in the intake manifold exceeds a predetermined vacuum pressure, a first electric conductor electrically connecting the brake switch to the vacuum switch to transfer the first signal to the vacuum switch, a normally closed relay operably electrically connected to the electronic controls of the engine and the electric igniter circuit whereby the electronic controls of the engine regulates the operation of the igniters, and a second electric conductor electrically connecting the vacuum switch to the relay to transfer the second signal to the relay to actuate the relay to an open position thereby opening the electric igniter circuit terminating electric power to the igniters and shutting down the internal combustion engine.