Combustion timing control of SI engines can be improved by feedback of the peak pressure position (PPP). However, pressure sensors are costly, and therefore, nonintrusive and cheap ion-current ‘soft sensors’ have been suggested. Three different algorithms have been proposed that extract information about PPP from the ion current signal. In this paper, these approaches are compared with respect to accuracy, operational range, implementation aspects, as well as sensitivity to engine load and inlet air humidity.
A Comparison of Ion Current Based Algorithms for Peak Pressure Position Control
Sae Technical Papers
International Spring Fuels & Lubricants Meeting ; 2001
2001-05-07
Aufsatz (Konferenz)
Englisch
An Ion Current Based Peak-Finding Algorithm for Pressure Peak Position Estimation
SAE Technical Papers | 2000
|An ion current based peak-finding algorithm for pressure peak position estimation
Kraftfahrwesen | 2000
|Peak Pressure Position Control of Four Cylinders through the Ion Current Method
SAE Technical Papers | 2009
|Peak pressure position control of four cylinders through the ion current method
Kraftfahrwesen | 2009
|Minimum Variance Control of Cylinder Peak Pressure Position
British Library Conference Proceedings | 2005
|