PM sensor development and simulation for Diesel Particulate Filter On Board Diagnostic

Jacques  Lavy, IFP Energies nouvelles

ORAL PRESENTATION: Increasing environmental, ecological and health concerns result in ever-tighter regulations of pollutant emissions from vehicle engines. In particular, diesel particulate filter (DPF) use is becoming widespread with regard to particulate matter (PM) emission reduction. If we look at both US and EU legislation trends, it will be mandatory to monitor very low PM emissions to meet on-board diagnostic (OBD) requirements including DPF-malfunction detection. A PM sensor would be entirely appropriate here, since the sensitivity of the current technology usually based on DPF pressure drop is too limited. Due to this increasing need, different PM sensor technologies are currently under development.

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