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:
Sep. 10, 2013
Filed:
Nov. 28, 2008
Martin Streib, Vaihingen, DE;
Andreas Pape, Oberriexingen, DE;
Andreas Baumann, Vaihingen/Enz, DE;
Werner Haeming, Neudenau, DE;
Martin Streib, Vaihingen, DE;
Andreas Pape, Oberriexingen, DE;
Andreas Baumann, Vaihingen/Enz, DE;
Werner Haeming, Neudenau, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method is provided for diagnosing the operability of fuel vapor intermediate stores (), in particular of activated carbon filters, in tank-venting systems with at least one tank () and at least one fuel vapor intermediate store (). In this case an actual change degree of filling of the fuel vapor intermediate store () is determined as a consequence of absorption or desorption processes of gaseous hydrocarbons in the fuel vapor intermediate store (). The actual change in degree of filling is compared with a desired change in degree of filling and, from the comparison, a conclusion about the operability of the fuel vapor intermediate store () is drawn.