Abstract: An active vibration enhancement (AVE) system for a vehicle without an internal combustion engine includes a sensor system configured to monitor and sense an operational condition of the vehicle, a force generator configured to couple to the vehicle and generate vibrations into the vehicle, a controller in signal communication with the sensor system and configured to receive one or more signals from the sensor system indicative of the sensed operational condition of the vehicle. The controller is configured to, based on the one or more received signals, actuate the force generator to generate vibrations into the vehicle that mimic vibrations that would be produced by a predetermined internal combustion engine operating at the sensed operational condition of the vehicle.

Abstract: An exhaust sound enhancement (ESE) system for a vehicle without an internal combustion engine includes one or more speakers, an amplifier configured to generate and play sounds on the one or more speakers, and a tuned exhaust assembly with a housing configured to resonate, amplify and inter-modulate the sounds from the one or more speakers to mimic exhaust sounds that would be produced by a predetermined internal combustion engine.