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:
Oct. 23, 2012
Filed:
May. 31, 2007
Rudolf Bierl, Regensburg, DE;
Martin Lesser, Landshut, DE;
Andreas Meyer, Zell, DE;
Frank Steuber, Korntal-Münchingen, DE;
Rudolf Bierl, Regensburg, DE;
Martin Lesser, Landshut, DE;
Andreas Meyer, Zell, DE;
Frank Steuber, Korntal-Münchingen, DE;
Continental Automotive GmbH, Hannover, DE;
Abstract
The present invention relates to a method and a device for monitoring an exhaust-gas turbocharger of an internal combustion engine. In order to create an inexpensive and also reliably operating method and a corresponding device for monitoring an exhaust-gas turbocharger, it is proposed that a sound transducer which is designed to record rotational-speed dependent turbocharger operating noise is provided, which sound transducer is connected to an electronic system for frequency analysis for the output of a turbocharger rotational speed signal.