• Transport Research

The automotive industry is today in a world of globalisation and external factors can influence the car companies and it is important that they progress with the people. When an external factor, as the oil price, increases dramatically, it will affect the economies in different matters. Other external factors are impacted by the oil price, for example inflation, unemployment and target rates. In addition, people are changing their preferences due to the attention of the environment. With this as the foundation the problem of the essay were divided into three aspects. First, are the automotive companies affected by an increasing oil price? Second, is a different green thinking in the markets of the companies affecting them? Third, do economic trends making an impact on the auto companies? The purpose of this essay is to investigate if the oil price, a new green way of thinking and if different economical factors have affected the car companies. To be able to accomplish the purpose, the ten largest automotive companies’ annual reports and Internet sites were used to gather information about monthly and annual sales numbers. Along with that, other necessary sources as pollution rates for different areas; inflation rates, unemployment rates and target rates were collected. Theories that were necessary for analyzing the empiric work were used. The analysis part of the essay consists mostly of correlation- and regression analysis, because they are the most appropriate tools in this context. Furthermore, the study is stating that the car companies are demonstrating tendencies to being negatively affected by an increasing in the oil price. Moreover, auto companies with more green cars have more sales on markets that have additional green thinking. Lastly, the study is also concluding that economical trends do not affect the companies in any special circumstances.

How to compare the environmental performance of different vehicle technologies? Vehicles with lower tailpipe emissions are perceived as cleaner. However, does it make sense to look only to tailpipe emissions? Limiting the comparison only to these emissions denies the fact that there are emissions involved during the production of a fuel and this approach gives too much advantage to zero-tailpipe vehicles like battery electric vehicles (BEV) and fuel cell electric vehicle (FCEV). Would it be enough to combine fuel production and tailpipe emissions? Especially when comparing the environmental performance of alternative vehicle technologies, the emissions during production of the specific components and their appropriate end-of-life treatment processes should also be taken into account. Therefore, the complete life cycle of the vehicle should be included in order to avoid problem shifting from one life stage to another. In this article, a full life cycle assessment (LCA) of petrol, diesel, fuel cell electric (FCEV), compressed natural gas (CNG), liquefied petroleum gas (LPG), hybrid electric, battery electric (BEV), bio-diesel and bio-ethanol vehicles has been performed. The aim of the manuscript is to investigate the impact of the different vehicle technologies on the environment and to develop a range-based modeling system that enables a more robust interpretation of the LCA results for a group of vehicles. Results are shown for climate change, respiratory effects, acidification and mineral extraction damage of the different vehicle technologies. A broad range of results is obtained due to the variability within the car market. It is concluded that it is essential to take into account the influence of all the vehicle parameters on the LCA results.

leading to poor driver visibility and an impaired road safety. Accordingly, the present study proposes a novel high-efficiency heating, ventilation and air conditioning (HVAC) system with both heating and defog/dehumidification functions for electric vehicles. The effectiveness of the proposed system is investigated experimentally using a simulated cabin placed in a temperature and humidity-controlled test chamber. The experimental results confirm that the HVAC system achieves the required cooling, heating and defog/dehumidification functions and meets the corresponding standards. Moreover, the application of HVAC in EVs could lead to significant electrical power saving effect. Electric vehicles (EVs) generally use an electric heating system to provide heat. However, the heating system consumes a large amount of energy, and therefore reduces the mileage of the vehicle. The energy consumption can be reduced by replacing the electric heating system with a heat pump air conditioning system. Such systems achieve an effective heating of the vehicle interior, but do not provide a defog or dehumidification function. Consequently, the inside surface of the windshield tends to fog in cold weather

Приведены результаты экспериментальных исследований изменения токсичных компонентов отработавших газов автомобильного двигателя в зависимости от обработки топлива и воздуха магнитным полем противоположной полярности. The results of experimental researches changes toxic components of exhaust gases road engine processing fuel and air magnetic field opposite polarity. Поляцко Владимир Леонидович. Аспирант кафедры «Эксплуатация автомобильного транспорта » Южно-Уральского государственного университета. Область научных интересов - экология транспорта. Vladimir L. Polyacko.Graduate student of the «Automobile transport explotation» departament of the South Ural State University. Professional interests: ecology of transport. Морозова Вера Сергеевна. Доктор технических наук, профессор кафедры «Эксплуатация автомобильного транспорта» Южно-Уральского государственного университета. Область научных интересов - впрыскивание топлива в дизелях, экология транспорта. Vera S. Morozova. The doctor of engineering sciences, professor «Automobile transport explotation» departament of the South Ural State University. Professional interests: fuel injection in Disel engine, ecology of transport. Гун Валентина Сергеевна. Старший преподаватель кафедры «Электротехника» Южно-Уральского государственного университета. Область научных интересов - впрыскивание топлива в дизелях, экология транспорта, автомобильная электроника. Valentina S. Goun. The senior teacher of the «electrical engineering» departament of the South Ural State University. Professional interests: fuel injection in Disel engine, ecology of transport, automotive electronics.

Several automobile manufacturers are interested in investigating of dual fuel internal combustion engines, due to high efficiencand low emissions. Many alternative fuels have been used in dual fuel mode for IC engine, such as methane, hydrogen, and natural gas. In the present study, a reactivity controlled compression ignition (RCCI) engine using gasoline/diesel (G/D) dual fuel has been investigated. The effectof mixing gasoline with diesel fuel on combustion characteristic, engine performance and emissions has been studied. The gasoline was injected in the engine intake port, to produce a homogeneous mixture with air. The diesel fuel was injected directly to the combustion chamber during compression stroke to initiate the combustion process. A direct injection compression ignition engine has been built and simulated using ANSYS Forte professional code. The gasoline amount in the simulation varied from (50%-80%) by volume. The diesel fuel was injected to the cylinder in two stages. The model has been validated and calibrated for neat diesel fuel using available data from the literature. The results show that the heat release rate and the cylinder pressure increased when the amount of added gasoline is between 50%-60% volume of the total injected fuels, compared to the neat diesel fuel. Further addition of gasoline will have a contrary effect. In addition, the combustion duration is extended drastically when the gasoline ratio is higher than 60% which results in an incomplete combustion. The NO emission decreased drastically as the gasoline ratio increased. Moreover, addition of gasoline to the mixture increased the engine power, thermal efficienc and combustion efficienc compared to neat diesel fuel.