Conference article

Technologies like hardware-in-the-loop simulation (HILS) can play a significant role in reducing the product development life cycle. An essential requirement for HILS is the availability of system models that are capable of running in real-time. This paper demonstrates a closed loop real-time simulation of a vehicle with a climate control system model developed in Modelica. This paper details the modeling aspects of the vehicle system and climate control system using the object-oriented; acausal modeling language Modelica. To demonstrate the real-time simulation capabilities of the developed models; they were integrated with a controller model developed in the Simulink environment and the integrated model was then simulated in an Opal-RT real-time environment. This paper describes the models developed and the tool-chain used to achieve real-time simulation. The real-time simulation results as well as the performance results are also presented. This paper demonstrates Modelica’s capabilities in creating models for real-time vehicle climate control system simulations.

Climate control system; vapor cycle; closed-loop simulation; real-time simulation