Regulating or control device and method for improving a noise quality of an air-conditioning system

Patent metadata

Field	Value
Publication number	US-10699689-B2
Application number	US-201816211653-A
Country	US
Kind code	B2
Filing date	Dec 6, 2018
Priority date	Dec 14, 2017
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

A method for influencing an acoustic noise of an air-conditioning system of a vehicle, wherein a psychoacoustic variable, in particular a sharpness of the sound, of the air-conditioning system is reduced by influencing a low-frequency and/or medium-frequency spectral component of a frequency spectrum of the sound of the air-conditioning system. A regulating or control device for carrying out the method.

First claim

The invention claimed is:

1. A method for influencing an acoustic noise of an air-conditioning system of a vehicle, comprising:
influencing, by a regulating or control device, at least one of a low-frequency and a medium-frequency spectral component of a frequency spectrum of a sound of the air conditioning system; and
reducing, by a regulating or control device, a psychoacoustic variable from the air-conditioning system, in particular a sharpness of a sound, to reduce the acoustic noise of the air conditioning system, based on the at least one of the influenced low-frequency and medium-frequency spectral component.

2. The method according to claim 1 , wherein said influencing comprising enhancing at least one of the low-frequency and the medium-frequency spectral component of the frequency spectrum of the sound of the air-conditioning system.

3. The method according to claim 1 , wherein, said influencing further comprising: influencing, by at least one porous absorber, a high-frequency spectral component of the frequency spectrum of the sound.

4. The method according to claim 3 , wherein said reducing further comprising: reducing the sharpness of the sound based on the influenced high-frequency spectral component of the frequency spectrum.

5. The method according to claim 1 , wherein said influencing further comprising: influencing a high-frequency spectral component of the sound of the air-conditioning system by using the regulating or control device to interact with a porous absorber; and said reducing further comprising: reducing the sharpness of the sound based on the influenced high-frequency spectral component of the frequency spectrum.

6. The method according to claim 1 , wherein said influencing further comprising: reducing a high-frequency spectral component of the sound of the air-conditioning system by using the regulating or control device to interact with a porous absorber; and said reducing further comprising: reducing the sharpness of the sound based on the reduced high-frequency spectral component of the frequency spectrum.

Assignees

• Audi Ag

Inventors

• Biermeier Thomas

Classifications

• G10K11/175 Primary

  using interference effects; Masking sound · CPC title

• G10K2210/509

  Hybrid, i.e. combining different technologies, e.g. passive and active · CPC title

• F24F2013/247

  Active noise-suppression · CPC title

• G10K11/161 Primary

  in systems with fluid flow (G10K11/162 takes precedence; gas flow silencers or exhaust apparatus for machines or engines in general or for internal combustion engine F01N, noise absorbers in pipes or pipe systems F16L55/02; noise absorption in air conditioning and ventilation F24F13/24; silencing exhaust or propulsion jets in aircraft B64D33/06) · CPC title

• H04R2499/13

  Acoustic transducers and sound field adaptation in vehicles · CPC title