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:
Oct. 11, 2011
Filed:
Apr. 15, 2005
Frank Schnell, Gerlingen, DE;
Lutz Dorfmueller, Gerlingen, DE;
Ralf Schmidt, Gerlingen, DE;
Sabine Roesch, Ditzingen, DE;
Helmut Marx, Hochdorf, DE;
Henrik Schittenhelm, Stuttgart, DE;
Frank Schnell, Gerlingen, DE;
Lutz Dorfmueller, Gerlingen, DE;
Ralf Schmidt, Gerlingen, DE;
Sabine Roesch, Ditzingen, DE;
Helmut Marx, Hochdorf, DE;
Henrik Schittenhelm, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method is described for controlling the soot deposition on sensors. A sensor element is provided, which includes a first electrode and a second electrode. Different measuring voltages Uand Ucan be applied to the sensor element. During a first time period t, the sensor element is operated at a higher voltage Uuntil a triggering threshold AP of the sensor element is exceeded, while it is operated at a voltage U, which is different from higher voltage U, Ubeing lower than voltage U, during a second time period t.