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:
Feb. 23, 2016
Filed:
Apr. 15, 2011
Martin Eckardt, Stuttgart, DE;
Martin Eckardt, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for detecting particles, for example in an exhaust gas stream of a vehicle in which the exhaust gas stream is guided along a duct, includes using a particle sensor that has at least two electrodes arranged in the duct. The method includes applying a first voltage and a second voltage to the electrodes to produce a first electric field and a second electric field between the electrodes. The method also includes ascertaining a first capacitance value corresponding to the first electric field and a second capacitance value corresponding to the second electric field of a capacitor formed by the electrodes. Information relating to the particles contained in the exhaust gas stream is ascertained from the first capacitance value and the second capacitance value.