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:
Apr. 07, 2015
Filed:
Jun. 03, 2013
Martin Brandt, Sachsenheim, DE;
Thomas Bleile, Stuttgart, DE;
Patrick Menold, Stuttgart, DE;
Andreas Huber, Grosskarolinenfeld, DE;
Martin Brandt, Sachsenheim, DE;
Thomas Bleile, Stuttgart, DE;
Patrick Menold, Stuttgart, DE;
Andreas Huber, Grosskarolinenfeld, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for diagnosing a blowoff valve in an engine system having a supercharged internal combustion engine, the blowoff valve being situated in a blowoff line around a compressor of a supercharging device, by performing the following: detecting a compressor rotational speed indication of the supercharging device; and determining a malfunction of the blowoff valve if the compressor rotational speed indication includes an oscillation after the blowoff valve is activated for opening the blowoff valve.