The incorporation of a detailed engine process calculation that takes into account thermal behavior of the engine and exhaust system is essential for a realistic simulation of transient vehicle operation. This is the only possible way to have a precise preliminary calculation of fuel consumption and emissions. Therefore, a comprehensive thermal network of the engine based on the lumped capacity method has been developed. The model allows the computation of component temperatures in steady state operation as well as in transient engine studies, e.g. investigations of engine warm-up. The model is integrated in a co-simulation environment consisting of a detailed vehicle and engine cycle simulation code. The paper describes the procedure of the co-simulation and presents several examples of warm-up simulations.
Modeling of Engine Warm-Up with Integration of Vehicle and Engine Cycle Simulation
Sae Technical Papers
Vehicle Thermal Management Systems Conference & Exposition ; 2001
2001-05-14
Aufsatz (Konferenz)
Englisch
Modeling of engine warm-up with integration of vehicle and engine cycle simulation
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