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:
Nov. 19, 2013
Filed:
May. 27, 2009
Stephane Closet, Lindau, DE;
Wolfgang Mai, Kronberg, DE;
Jens Pache, Helsa, DE;
Continental Automotive GmbH, Hannover, DE;
Abstract
A method for controlling a tank ventilation device () for a motor vehicle () is proposed in which first of all a tank vent valve () of the tank ventilation device () is closed. Then, the value of a control signal for the tank vent valve () is increased in the sense of an opening of the tank vent valve () until a leak detection means () associated with the tank ventilation device () recognizes a leak in the tank ventilation device (). The value of the control signal at which the leak in the tank ventilation device () is recognized is identified as the opening control value for opening the tank vent valve (). In this way, the opening control value for the tank vent valve () can be determined with a high frequency and precision.