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. 15, 2009
Filed:
Aug. 25, 2006
Ralf Wirth, Farmington Hills, MI (US);
Heribert Haerle, Kornwestheim, DE;
Torsten Handler, Stuttgart, DE;
Dirk Samuelsen, Ludwigsburg, DE;
Werner Christl, Moeglingen, DE;
Sabine Rösch, Ditzingen, DE;
Bernhard Kamp, Ludwigsburg, DE;
Michael Kolitsch, Weissach, DE;
Katharina Schaenzlin, Rottenburg-Obernau, DE;
Ralf Wirth, Farmington Hills, MI (US);
Heribert Haerle, Kornwestheim, DE;
Torsten Handler, Stuttgart, DE;
Dirk Samuelsen, Ludwigsburg, DE;
Werner Christl, Moeglingen, DE;
Sabine Rösch, Ditzingen, DE;
Bernhard Kamp, Ludwigsburg, DE;
Michael Kolitsch, Weissach, DE;
Katharina Schaenzlin, Rottenburg-Obernau, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for operating a sensor for recording particles in an exhaust gas flow and a device for carrying out the method are provided, in which at least one measure of the exhaust gas flow is ascertained and in which the measure of the exhaust gas flow is taken into consideration in the valuation of the particle sensor signal made available by the particle sensor. The procedure is based on the knowledge that the exhaust gas flow, for instance, the exhaust gas volume flow, has an influence on the particle sensor signal made available by the particle sensor, especially when the measuring effect is based on the depositing of particles on a sensor surface. Using the procedure, a possibly present cross sensitivity of the particle sensor with respect to different exhaust gas flows is taken into consideration, so that the measuring accuracy is increased.