Abstract
In this paper, a one-dimensional mathematical model of a hybrid heat pump system was developed to improve the driving range of electric vehicles considering energy consumption. The generated one-dimensional model was performed in four different heating modes under various scenarios to satisfy the heating demand considering both the driving range and the target temperature. This model was run in recirculation mode in all analyses for energy efficiency. The electric heater capacity can be reduced to prevent overheating in the cabin. The fastest proposed cases reached the target temperature in 300 s. In this case, the vehicle range was lowest and varied between 72.3 % and 77.5 %. The highest vehicle range varied between 81.3 % and 86.1 % and provided sufficient heating in approximately 900 s. In addition, the effect of preheating by different capacities electric heaters, it was observed that preheating with a low-capacity electric heater had advantages. As a result, the present study shows that the dynamic behavior of the hybrid heat pump systems allows researchers to improve electric vehicles thermal management system which had a crucial role. The results of the model were in good agreement with the experimental data presented with similar boundary conditions in available literature.
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