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. 11, 2006
Filed:
Jan. 18, 2005
Armin Hassdenteufel, Sachsenheim-Ochsenbach, DE;
Karl-bernhard Lederle, Renningen, DE;
Michael Pfeil, Schwieberdingen, DE;
Andreas Mueller, Pforzheim, DE;
Armin Hassdenteufel, Sachsenheim-Ochsenbach, DE;
Karl-Bernhard Lederle, Renningen, DE;
Michael Pfeil, Schwieberdingen, DE;
Andreas Mueller, Pforzheim, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for testing the functionality of a tank system of a motor vehicle having an internal combustion engine, including a controllable tank venting valve connected to an intake manifold and at least one pressure source for testing the tightness of the tank venting system using overpressure or underpressure, the functionality of the tank venting valve being tested via its activation in an opening and/or closing manner during pressurizing the tank system using overpressure or underpressure and by registering and evaluating at least one operating variable of the pressure source. The tank system is pressurized with overpressure or underpressure and the at least one operating variable of the pressure source is registered and evaluated during operation of the engine.