Abstract
The state-of-the-art in engine simulation or in simulation in general is constantly advancing. Simulation technologies have traditionally been segregated into specialties that simulate one sub-system while greatly simplifying the interaction to other components. This is acceptable in traditional design methodologies but became inadequate in the context of “integrated system”, which is currently emerging in industry. The development in the computer hardware had reached a mature stage that help realizing this integrated system approach. This paper presents a powerful methodology that can be used in modeling the integrated vehicle thermal partial systems in order to understand and quantify the thermal behavior of the vehicle sub-systems; especially during the engine warm-up. Having been able to model, the thermal system, the engine transient performance can be optimized with respect to the control parameters of these sub-systems.