Field testing PM sensor

Topic: Field testing of particle sensors in the off-road area

Project duration: March 1, 2007 – August 31, 2008

Project status: completed

When using diesel engine-powered vehicles and industrial trucks in fully or partially closed work areas, effective measures must be taken to reduce particle emissions. Strict regulations in this regard are contained in TRGS (Technical Rule for Hazardous Substances) No. 554 “Exhaust Gases from Diesel Engines” [1]. The use of diesel particulate filters (DPF) is prescribed, the degree of separation of which is greater than 90% in the sense of this TRGS. Monitoring the filter efficiency by means of the usual differential pressure measurement is not sufficient. This leads to the demand for an effective monitoring concept for the DPF function. An important component of this function monitoring is a particle sensor.
As part of a field test on off-road machines and additional test bench measurements, two particle sensor types were examined with regard to their suitability for DPF function monitoring and for the requirements of future on-board diagnostic systems (OBD systems) for occupational safety-related applications.

This research project of the FAD e.V. was carried out by the FAD e.V., the research institute vehicle technology of the HTW Dresden (FH), as well as by Prof. Dr.-Ing. G. Hauser and Mrs. Dr.-Ing. V. Wilms edited.