The National Transport University Bulletin

Abstract

The object of the study is typical driving cycles that are used to determine the performance indicators of motor vehicles. The purpose of the work is the analysis of existing driving cycles for the assessment of operational characteristics, economy and environmental friendliness of motor vehicles, as well as the determination of promising methods for creating test cycles. The article considers the main operating driving cycles for evaluating the operational characteristics, economy and environmental friendliness of motor vehicles. It is noted that one of the ways to determine the environmental safety and fuel efficiency of cars is the use of driving cycles for cars and engine test cycles for trucks. Today in the world there are a large number of standards, directives, methods of control and research of vehicles regarding their fuel economy and environmental indicators. Most of the driving cycles used in the world belong to the following main groups: European, Japanese and US test cycles. The main disadvantage of typical driving cycles is the idealization of test conditions without taking into account all real operating factors. In addition, the modes of operation of motor vehicles on different continents and in different countries have significant differences, which makes it difficult to use unified driving test cycles. The study of fuel efficiency and environmental indicators of cars using driving cycles is a rather time-consuming process, therefore, the creation of driving test cycles to simplify certain stages of research and the development of software tools, universal computer models will significantly facilitate the test procedure and ensure the accuracy of the results obtained.

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