Critical analysis of the functioning of test benches dedicated to testing heat pumps in electric vehicles

Changes in the automotive industry to bring more electric and hybrid cars to market have a significant impact on the type of heating and cooling systems for vehicles. The work done so far in this area shows the considerable impact of these systems on vehicle coverage. This is due, among other things, to the fact that air conditioning systems in electric and hybrid cars have additional tasks, such as keeping the battery temperature at the right temperature. Studies also show that heating and cooling systems based on heat pump systems have the highest efficiency. The development of such systems, however, depends on a properly planned test phase under widely varying boundary conditions. Such research allows to limit the negative impact of heating and cooling systems on the range of electric cars under real operating conditions and can contribute significantly to the popularity of electric vehicles. The aim of this work is to develop a test bench concept for testing heat pumps used in electric vehicles. The impact of the assumed boundary conditions on individual system components is presented. On the basis of two examples of test stands, a critical assessment of the effectiveness of the applied methodology was made. Differences in individual systems were indicated, and the own concept of the test bench for testing heat pumps for variable input parameters was presented.

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Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).