The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2016
Filed:
Apr. 17, 2012
Christof Luecking, Wetter, DE;
Sebastian Pietrzyba, Moenesee, DE;
Christof Luecking, Wetter, DE;
Sebastian Pietrzyba, Moenesee, DE;
EBERSPAECHER EXHAUST TECHNOLOGY GMBH & CO. KG, Neunkirchen, DE;
Abstract
The invention relates to a system for generating anti-noise in an exhaust-gas line () of a vehicle, comprising a first electro acoustic transducer () for generating a first acoustic signal based on an electric control signal, and being in communication with the exhaust-gas line via an acoustic line (), with the first acoustic signal entering the exhaust line in form of anti-noise after having passed the acoustic line, a second electro acoustic transducer () for generating an electric measurement signal representing a second acoustic signal, and being in acoustic communication with the exhaust-gas line () at the anti-noise coupling region, a control unit () for generating the control signal based on the measurement signal, and a parameterizing unit () for determining a conforming phase parameter and a conforming magnitude parameter for the control function used by the control unit () based on the transient response of the control unit.