Method and device for measuring the soot load in the exhaust gas systems of diesel engines

US9097151B2 · kind B2 · utility

Assignee

• CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

• Johannes Ante · Regensburg, DE
• Rudolf Bierl · Regensburg, DE
• Stephan Heinrich · Freiberg, DE
• Markus Herrmann · Scheidegg, DE
• Andreas Ott · Erfurt, DE
• Willibald Reitmeier · Hohenschambach, DE
• Denny Schädlich · Neustadt, DE
• Manfred Weigl · Viehhausen, DE
• Andreas Wildgen · Nittendorf, DE

Key dates

• Filing date: Feb 1, 2010
• Grant date: Aug 4, 2015
• Expiry date: Aug 21, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method and device for measuring the soot load in the exhaust gas systems of diesel engines using a sensor which is mounted downstream of a particulate filter and comprises a sensor element, to measure the operability of the particulate filter. According to the method, the soot load of the sensor element is measured resistively or capacitively using electrodes. The measuring voltage of the sensor element is controlled depending on at least one actual operating parameter of the diesel engine.