The Crank Angle Resolved version predicts the cyclic variations for air flow and torque. This is an extension to the Mean Value version of the library.
The combustion heat release is modelled though a two-zone predictive model or a Wiebe model with table based coefficients. The table defines the Wiebe model coefficients at different engine speeds, loads and air-fuel ratios. Both Compression and Spark ignition heat release models are available. Port fuel and direct injection are also supported.
The flow though the engine block is dictated by the valve geometry and opening characteristics and the piston-cylinder assembly model. Valve and spark timing effects on the fluid dynamics and combustion model mean that the engine performance can be investigated using this version of the library.
This version of the Engine library is particularly suited to driveline NVH analysis, mount excitations, cranking and detailed friction modelling.