System for influencing exhaust noise, engine noise and/or intake noise

A system (7), for influencing noises of a vehicle, includes a controller (9) and at least one connected loudspeaker (2) that generates noise inside a sound generator (3) in response to a control signal. The controller includes a microprocessor (91; 91′), a digital-to-analog converter (92), an amplif...

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Bibliographische Detailangaben
Hauptverfasser:	KÜGER, JAN, BUGANZA, FEDERICO, SERBETCI, SELCUK
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR AMPLIFIERS BASIC ELECTRONIC CIRCUITRY BLASTING ELECTRICITY ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS SOUND-PRODUCING DEVICES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A system (7), for influencing noises of a vehicle, includes a controller (9) and at least one connected loudspeaker (2) that generates noise inside a sound generator (3) in response to a control signal. The controller includes a microprocessor (91; 91′), a digital-to-analog converter (92), an amplifier (93), and a step-up converter (97). The microprocessor generates a digital control signal, to generate a noise to cancel noise inside an exhaust system and/or an intake system and/or to generate a noise inside an engine compartment. The digital control signal is converted by the digital-to-analog converter into an analog control signal. The amplifier amplifies the analog control signal output from the digital-to-analog converter. The step-up converter is connected to an automobile battery (10) of the vehicle and converts a battery voltage (VBATT) supplied by the automobile battery to a constant value, with this output as a supply voltage (VB) to the amplifier.