A sound enhancement system (100) of an engine (201) of a vehicle (200) comprises a vibration sensor (1) disposed on the casing (202) of the engine to generate an electrical signal (A) indicative of the engine sound; a signal processor (2) connected to the vibration sensor (1) to process said electrical signal (A) indicative of the engine sound and generate an output audio signal (B), and a speaker (3) disposed in the vehicle compartment and connected to said signal processor (2) to receive said output audio signal (B) and generate an enhancement sound of the engine sound. The vibration sensor (1) is a shaker or exciter-type mechanical-electrical transducer. The sound enhancement system may be used to modify the audio signal generated by the vehicle engine so as to combine the real motor noise with an artificial synthesized signal to arrive at a desired sound profile. The system may comprise a CAN interface (5) connected to a CAN-bus (203) of the vehicle and to the signal processor (2) and said CAN interface (5) being configured to detect engine revolution (RPM) and torque (Torque) values and send said values to the signal processor (2) that uses them to control the gain of said outgoing audio signal (B).
Engine sound enhancement system of a vehicle
2016-09-07
Patent
Electronic Resource
English
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES |