Flywheel angular velocity model for misfire and driveline disturbance simulation
A flywheel angular velocity model for misfire and disturbance
simulation is presented. Applications of the model are, for example,
initial parameter calibration and robustness analysis of misfire
detection algorithms. An analytical cylinder pressure model is used
to model cylinder torque and a multi-body model with torsional
flexibilities is used to model crankshaft and driveline oscillations.
Misfires, cylinder variations, changes in auxiliary load, and flywheel
manufacturing errors can be injected in the model and the resulting
speed variations can be simulated. A qualitative validation of the model
shows that simulated angular velocity captures the amplitude and
oscillatory behavior of measurement data and the effects of different
phenomena, such as misfire and flywheel manufacturing errors.
Daniel Eriksson, Lars Eriksson, Erik Frisk and Mattias Krysander
2013
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