Influence of Errors in Pressure Measuring on Pressure Trace Computing 845107
Combustion characteristics, computable from a pressure trace are
the most important information for engine development, especially
with regard to engine noise, economy and emissions. Pressure trace
brings most relevant information for engine development.
This paper shows the influence of typical measuring chaine
errors on computed characteristics with the help of a pressure
trace computing program.
Besides the typical measuring chaine errors like drifting of the
pressure transducer, pressure level, and the different reaction of
various transducers on thermical shock, also user-caused errors
like TDC adjustment and crank angle resolution are