| Popis: |
Introduction (statement of the problem and relevance). At present, little attention is paid to the analysis of vehicle climate systems operation, though maintaining a comfortable temperature in the cabin under some conditions makes up the majority of energy costs. In some cases, lack of energy leads to the use of diesel heaters. In this respect, the assessment of the climate system impact on energy consumption is an urgent task of today.The main purpose of this article was to calculate and analyze the specific costs in various temperature conditions on the example of M3 passenger electric bus category.Methodology and research methods. In the article the methods to construct a mathematical model of the temperature effect on the air inside the vehicle using the heat balance equation were proposed. Also, a method of car traction balance was used to build a model of vehicle motion.Scientific novelty and results. As a result of an electric bus motion modeling according to the OCB cycle, energy costs at temperatures from –40°С to +40°С have been determined. The highest energy consumption in winter was 2.63 kW·h/km at –40°C.Practical significance. At the first approximation the article allows to determine the specific costs for M3 passenger vehicle category, and basing on earlier developed methods, makes it also possible to build a mathematical model to determine the energy costs for any type of wheeled vehicle. |
