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Information × Registration Number 0224U002876, 0122U201380 , R & D reports Title Investigation of the vehicles energy efficiency in the conditions of urban mobility popup.stage_title Head Kostian Nataliia L., Кандидат технічних наукMateichyk Vasyl P., д.т.н.Tarandushka Liudmyla A., Доктор технічних наук Registration Date 09-03-2024 Organization Cherkasy State Technological University popup.description2 The study object of is assessment of the energy efficiency of vehicles with conventional and alternative power plants during their operation in the transport system conditions. The study purpose is to determine the nature of the influence of parameters of the functional elements of the city's transport system at the energy efficiency level of vehicles for its further evaluation. Research methods – methods of system analysis; empirical methods of research: observation and experiment; statistical methods of evaluation; methods of mathematical modeling and methods of theory of fuzzy sets. The existing methods and models for assessing vehicles energy efficiency have been studied. It is determined that the predominant number of used methods are only suitable for a particular transport technology. A morphological analysis of the urban transport system has been carried out. A survey of the system states was carried out on fragments of the street and road networks of nine typical cities of Ukraine. Based on this, ten independent parameters of the system have been defined, which correspond to the most important features of its functional elements. A linear model has been built to assess the energy efficiency of the vehicle with taking into account the parameters of the city's transport system in the form of an equation linear regression. The modeling error is 1,5%. Models of logical inference have been built and implemented that partially smooth out the negative influence of the fuzzy nature of experimental data. The most effective model of the transport system turned out to be the Mamdani model with an error of simulation 1,2%. The influence of the parameters of the transport system on the energy efficiency of vehicles has been explored. Results of the analysis of the dependency of the energy efficiency indicator from combinations of its parameters showed that the weight of their total impact on the energy efficiency indicator depends on the vehicle categories. Product Description popup.authors Lyoranchas Bohdan I. Lukianchenko Oleksandr Yu Ponomarenko Ruslan P. Serdiuk Anton I. popup.nrat_date 2024-03-09 Close