Title:
排気系のための能動騒音制御システムおよびその制御方法
Document Type and Number:
Japanese Patent JP5507616
Kind Code:
B2
Abstract:
An active noise control system for exhaust systems of a combustion engine operated vehicle comprises an anti-sound control 10 connectable to an engine control 8 of the vehicle and a loudspeaker 12 connected to the control 10 for receiving control signals and designed for generating an anti-sound in a sound generator 3, fluidically connectable to the exhaust system 4. In the control 10, at least two curves are stored in order to cancel airborne sound conducted in the exhaust system 4 through outputting the signal to the loudspeaker 12. The curves cover different temperature ranges of the exhaust gas, which temperature ranges overlap one another by pairs or directly adjoin one another. The control 10 is furthermore designed to select a curve suitable for a respective temperature of the exhaust gas conducted in the exhaust system 4 from the available curves by means of signals output by the engine control 8 and output signals to the loudspeaker 12 making use of this curve.
Inventors:
Christophe trekking
Andre Mengel
Andre Mengel
Application Number:
JP2012125787A
Publication Date:
May 28, 2014
Filing Date:
June 01, 2012
Export Citation:
Assignee:
Aberspechcher Exhaust Technology Game BM Behr und Company Cargage
International Classes:
F01N1/00; F02D45/00
Domestic Patent References:
| JP5088686A | ||||
| JP10011076A |
Attorney, Agent or Firm:
Ikeuchi, Sato & Partners