Patent ID: 8179234
Filing Date: 2012-05-15
Classification: B60Q

Abstract:
1. A sound generation apparatus for an electric vehicle that is being operated by a driver, the apparatus comprising: a sound generation circuit that is attached to a wheel of the electric vehicle; at least two radially positioned Faraday generators within the circuit for supplying pulses of electrical current to the circuit while the wheels of the vehicle are rotating; at least one battery within the circuit for supplying battery power to the circuit; a pulse activated power controller within the circuit that is activated upon the receipt of an initial pulse form one of the at least two Faraday generators, said power controller for controlling the supply of battery power to the circuit; and a programmed microcontroller within the circuit for generating a motor sound for the electric vehicle while being operated by the driver, said microcontroller also having at least two microcontroller ports for receiving additional pulses produced by the at least two Faraday generators for determining whether the vehicle is accelerating, decelerating or moving in reverse and based upon its state of motion modifying the motor sound.