18826281. METHOD FOR ASCERTAINING AN OPERATING STATE OF A BURNER (Robert Bosch GmbH)
METHOD FOR ASCERTAINING AN OPERATING STATE OF A BURNER
Organization Name
Inventor(s)
William Krein of Neckarzimmern DE
Christian Disch of Wimsheim DE
METHOD FOR ASCERTAINING AN OPERATING STATE OF A BURNER
This abstract first appeared for US patent application 18826281 titled 'METHOD FOR ASCERTAINING AN OPERATING STATE OF A BURNER
Original Abstract Submitted
A method for ascertaining an operating state an exhaust gas burner in an exhaust system of an internal combustion engine. The burner is supplied with air by means of a secondary air system and with fuel by means of a fuel system. Exhaust gas generated in the burner is discharged into the exhaust system of the internal combustion engine. The method includes: detecting a sensor signal of at least one pressure sensor arranged in an air path upstream and/or downstream of the burner; ascertaining an amplitude of at least one periodic partial signal contained in the sensor signal and having a predeterminable frequency; and ascertaining the operating state of the burner depending on the ascertained amplitude. A computing unit, an exhaust system, and a computer program for carrying out the method are also provided.