New Development Methods for the Calibration of Gasoline Particulate Filters
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The introduction of gasoline particulate filters leads to new challenges in terms of calibration. FEV addresses these challenges with new development methods. The methods presented are simulation-supported testing under real-world conditions, use of specific worst-case fuels and accelerated ash loading in gasoline particulate filters.
Necessity for Gasoline Particulate Filter Implementation
The introduction of stricter Particulate Number (PN) limits in Europe and China is complemented by the measurement of Real Driving Emissions (RDE) on public roads at arbitrary boundary conditions. With this, the nominal boundary conditions of chassis roller dyno measurements are significantly extended, posing an additional major challenge for achieving the PN targets. These arbitrary conditions consist of changing ambient conditions, varying fuel specifications and different driver behaviors. They also include high vehicle payloads and influences from traffic and road gradients. Thus, in order to...
Particulate filters and vehicle reference data were kindly provided by Corning. Furthermore, the authors thank all colleagues for their valuable contributions to this article, especially Jim Cox, Vikas Vaidyanathan, Dr. Martin Nijs and Dr. Johannes Scharf.