Vehicle and electronics. Innovative technologies最新文献

{"title":"Evaluation of the possibility of using mathematical models for expert research of car engine damage","authors":"A. Khrulev, Iryna Saraіevа, O. Vorobiov, Andrii Sokhin","doi":"10.30977/veit.2022.21.0.06","DOIUrl":"https://doi.org/10.30977/veit.2022.21.0.06","url":null,"abstract":"Problem. The problem of expert assessment of damage to engine parts, especially its mechanisms, which work in conditions of malfunctions of the car is a difficult task. Such an assessment requires certain qualifications, special equipment, is quite expensive and is subjective. The use of mathematical models in conducting such research should improve the objectivity of the expert's opinion. To do this, the paper identifies mathematical models, which are the basis of an improved expert method for estimating engine damage. These models under certain conditions of application allow to solve the inverse problem of destruction of details of the engine mechanism. Previously, such models were used in the design of the engine in the absence of violations of the car. Modeling in the practice of expert research is designed to improve their informational and objective components in determining the causes of engine failures due to violations of the operating conditions of the car. Goal. The aim of the work is to use mathematical models in conducting expert studies of engine damage to improve the objectivity of the expert's opinion. Methodology. Methodical materials for determining the causes of engine failures are not enough to solve practical problems. In many cases, the search for the cause of the fault involves time-consuming work on the analysis of numerous possible causes, which is often subjective, highly dependent on the qualifications of the researcher and can lead to erroneous determination of the cause of the fault. Originality. The problem of correct and effective determination of the causes of malfunctions remains an urgent task at all stages of operation of engines. In expert practice, it is customary to use several methods, which include diagnostic, as well as methods based on the analysis of signs of damage to individual parts. Practical value. Serious development of numerical modeling methods used for ICE design tasks has had almost no effect on the methods of modeling various faults, insufficiently developed issues of applicability of known mathematical models to the problem of damage to parts and components of ICE. In fact, modeling methods are not used at all in expert tasks to determine the causes of faults.","PeriodicalId":153826,"journal":{"name":"Vehicle and electronics. Innovative technologies","volume":"187 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134232482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Conversion of a car from an ICE into an electric car","authors":"A. Hnatov, S. Arhun, H. Hnatova, Pavlo Sokhin","doi":"10.30977/veit.2022.21.0.1","DOIUrl":"https://doi.org/10.30977/veit.2022.21.0.1","url":null,"abstract":"Problem. The advantages of the electric car (EV) are well-known – it is environmentally friendly, quiet and the most important feature is a radical reduction in the cost of operating the EV compared to a conventional car with an internal combustion engine. Cost savings are due to the fact that its \"refueling\" comes from a conventional electrical outlet. No need to periodically change engine oil, filters, belts and other consumables. Also, you will spend less time and money on maintenance. So, by converting traditional cars from internal combustion engines to EVs, you are making your best and real contribution to improving the ecological space around you. Goal. The goal is conducting a study on the conversion of the car from the internal combustion engine to the EV with the calculation of the payback period of the converted car. Methodology. Analytical methods of research on the methods of conversion of traditional cars from internal combustion engines to EV were used as well as the physical methods of calculating the action of forces acting on the car and determining the speed of its movement. Also, the methods of experimental research and mathematical methods of processing and modulation of the obtained results and the methods of calculating technical and economic indicators were used. Results. The study was conducted on the conversion of the car from an internal combustion engine to an EV. The main elements of re-equipment were considered. The analysis was carried out and the sequence of actions on definition of power of the electric motor for the electric car was offered. The calculation of economic indicators of car conversion on the basis of ZAZ \"Sens\" in EV was performed. The results of the calculation show that in the 3rd year of operation of the converted car the cost of conversion will be reimbursed. Originality. On the example of ZAZ \"Sens\" the power of the traction motor for its conversion into EV was calculated. The graphical dependence of the traction motor power on the EV speed was constructed. The calculations and the dependence of the power of the traction motor on the road slope when moving EV at a certain speed were performed. Practical value. Conversion of cars from internal combustion engines to EV is expedient and economically advantageous for companies engaged in various services for the delivery of goods within the city. Also, it is beneficial to companies and firms engaged in car rental. But here it should be borne in mind that a well-developed charging infrastructure is required within the city.","PeriodicalId":153826,"journal":{"name":"Vehicle and electronics. Innovative technologies","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122142909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The problem of integrated quality assurance and safety of vehicle operation","authors":"M. Taranenko, G. Mygal, N. Kobrina, A. Makovetskyi","doi":"10.30977/veit.2022.21.0.05","DOIUrl":"https://doi.org/10.30977/veit.2022.21.0.05","url":null,"abstract":"Problem. The article analyzes the theoretical and methodological foundations of product quality management. The problem of the quality and safety of the operation of vehicles is considered from three angles. The first is directly the problem of the quality and reliability of vehicles as products. Therefore, a quantitative assessment of the quality of a wheeled vehicle is an urgent task and will be discussed in the article. The second aspect is the human-machine interaction in the \"man - car - road - environment\" system and directly the quality of the human performer driving the car. This aspect depends immediately on the ergonomic qualities of the car. The third aspect concerns the quality of the society and the issues that affect the quality of a quality vehicle designer. Goal. The main purpose of the research is to substantiate the methodological foundations of vehicle quality management as a product. The practical purpose of this work is to develop a methodology for a comprehensive quantitative assessment of the quality, reliability and safety of wheeled vehicles. Methodology. The paper considers groups of product quality characteristics. The possibility of a comprehensive qualitative assessment of the quality of vehicles is determined. The relevance of such an assessment is due to the wide variety of vehicles, the improvement of their technical characteristics against the backdrop of a slower development of the characteristics of the environment in which they are used. Another important circumstance is slow development of methods for assessing the quality of vehicles, which makes it difficult to choose the best option in accordance with the goals of their operation. Originality. The paper shows an extensive range of vehicle properties. A technique for a comprehensive assessment of the quality of vehicles is proposed. An assumption is made about the representation of quality indicators in a multidimensional space, in which each dimension corresponds to a certain group of properties. Practical value. To improve the objectivity of a comprehensive assessment, a number of units of property characteristics are described that have a metric dimension and are based on the physical and material representation of actions. It is concluded that it is necessary to develop and refine the methodology for a comprehensive quantitative assessment of quality in the area under research.","PeriodicalId":153826,"journal":{"name":"Vehicle and electronics. Innovative technologies","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131818229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simulation of а car parameters impact on the process of its acceleration","authors":"O. Osetrov, B. Chuchumenko","doi":"10.30977/veit.2021.20.0.05","DOIUrl":"https://doi.org/10.30977/veit.2021.20.0.05","url":null,"abstract":"Goal. The purpose of the work is mathematical modeling of Daewoo Lanos passenger car acceleration dynamics. Methodology. The mathematical model is based on the methodology of E.A. Chudakov and N.A.Yakovlev. According to this method, the main factor that determines the current value of vehicle acceleration at an elementary speed section is the dynamic factor. This factor depends on the traction force, the air resistance force and the weight of the vehicle. The paper proposes formulas for determining the dynamic factor and parameters of vehicle acceleration at an elementary speed section, where gear shift takes place. The model is implemented in the MATLAB software environment. The software product allows to determine the parameters of the car during acceleration to the maximum speed when the engine is running at the external speed characteristic modes. Results Based on the results of mathematical modeling for the Daewoo Lanos car, the loads arising in the drive of the car were analyzed. It is shown that the tractive effort is mainly spent on overcoming the inertial forces, which at the beginning of the movement exceed the resistance forces of the road and air by more than 50 times. With an increase in the vehicle speed, the inertia force decreases and at a speed of 100 km / h it is only twice the other load components. It is shown that with the accepted initial data, the Daewoo Lanos car accelerates to 100 km/h in 17.7 s, which corresponds to the experimental data. The influence of the mass of the car, the rated power of the engine, the mode and time of gear shifting, the radius of the wheels, the height of the car, the coefficient of aerodynamic drag on the dynamics of acceleration of the car is analyzed. It was revealed that the vehicle weight and the nominal power of the engine affect the dynamics of acceleration from 0 to 100 km/h to the greatest extent. The influence of other parameters in the indicated speed range is not somewhat significant. The explanation of the obtained results is given. Practical value. The mathematical model presented in the work allows to determine the parameters of the engine and the car during acceleration, take into account the influence of the design and adjusting parameters of the engine and the car on these indicators, and carry out optimization studies.","PeriodicalId":153826,"journal":{"name":"Vehicle and electronics. Innovative technologies","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124464440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Method of selecting automatic control system of a motor grader","authors":"Igor Ilge","doi":"10.30977/veit.2021.20.0.04","DOIUrl":"https://doi.org/10.30977/veit.2021.20.0.04","url":null,"abstract":"Problem. Effective use of motor graders is impossible without the use of automatic control systems, especially in modern conditions of large volumes of road construction. However, among the large number of samples of such systems, which differ in various parameters, it is impossible to make an appropriate choice without a scientifically sound approach, taking into account the set of their characteristics. It was found that these systems are characterized by a large set of parameters, with the values of some of them unknown, and the reliability of the values of many parameters is questionable, i.e. the choice must take place in conditions of fuzzy information. The methods of choosing alternatives in conditions of uncertainty described in the literature, in particular when choosing technical systems based on Analytic Hierarchy Process and fuzzy set theory, are analyzed and the latter is taken to develop a method of choosing a motor grader ACS. The goal of the work is to increase the efficiency of motor graders in road construction due to the appropriate choice of ACS. The methodology of constructing the method is the theory of fuzzy sets. The economic, technical-operational and ergonomic groups of criteria for choosing a motor grader ACS are determined and substantiated. The construction of the method was performed to select the ACS in the 3D class. As the alternatives, the systems which are the leaders of this segment were chosen. The above criteria are a set of criteria. The solution to the problem of choice is an alternative that best meets the requirements of the whole set of criteria. The results of the work are the development of a method of fuzzy multicriterion analysis for the selection of a motor grader ACS in the class of 3D systems. Originality lies in constructing the method of choosing a motor grader ACS in conditions of fuzzy information on the basis of reasonable criteria. The practical value is the fact that the use of the developed method will allow to make a scientifically sound choice of the ACS of a motor grader taking into account the whole set of criteria.","PeriodicalId":153826,"journal":{"name":"Vehicle and electronics. Innovative technologies","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127402582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The method of optimizing the main technical parameters of the promising city electric buses of ONC Type","authors":"Staniskav Voytkiv","doi":"10.30977/veit.2021.20.0.01","DOIUrl":"https://doi.org/10.30977/veit.2021.20.0.01","url":null,"abstract":"Problem. City electric buses of the ONC type, which are widely used for passenger transportation on city routes, even if the permissible gross weight is increased by 1500 kg, have significantly lower passenger capacity than the high-class buses on the basis of the bodies of which they are created. This is due to the fact that the mass of traction batteries is much greater than the mass of the power unit with all its city bus systems. Goal. The goal is determining the optimal values of the main technical parameters of promising electric buses already at the stages of development of sketch proposals or sketch projects. Methodology. The work is based on the analysis of technical parameters of city electric buses of modern designs and regulated technical requirements for high-capacity passenger wheeled vehicles, the dependences of their passenger capacity on the dimensional parameters of the body, the weight of the equipped electric bus without the weight of traction batteries and the autonomous mileage of electric buses. Results. Three variants of a technique of optimizing the parameters of the designed city electric buses on one of the set parameters – the nominal passenger capacity, average daily autonomous run or length of a body of an electric bus are developed. Originality. An algorithm for determining the optimized parameters of the designed electric buses at the stage of development of sketch proposals and sketch projects is proposed. Practical value. The proposed method provides the design of promising competitive city electric buses of ONC type, which are most suitable for use in the cities of Ukraine, with a given or maximum possible nominal passenger capacity in terms of providing a given or maximum autonomous mileage and equality of passenger capacity, determined by passenger area mass.","PeriodicalId":153826,"journal":{"name":"Vehicle and electronics. Innovative technologies","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125418856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of the most common methods for determining the stability of energy systems","authors":"A. Hnatov, S. Arhun, Ruslan Bagach, H. Hnatova, V. Tarasova, Oleksandr Ruchka","doi":"10.30977/veit.2021.20.0.02","DOIUrl":"https://doi.org/10.30977/veit.2021.20.0.02","url":null,"abstract":"Problem. There are many methods for determining the stability of the energy system. In normal operating condition (normal rated mode), the power system must reliably ensure the consumption of electricity of normalized quality. However, in addition to the normal state, there are emergency and transient states caused by various transients. This is due to the fact that the energy system is constantly changing its parameters. Such changes are determined by variations in the amount of power produced and consumed, as well as the changes in system configuration. Goal. The goal is studying the possibilities of various methods of determining the power systems stability and drawing up the general algorithm of actions for maintenance of their stability. Methodology. When determining the stability of energy systems by the Lyapunov method, two methods can be used: the direct method and the first approximation method. Lyapunov direct method refers to differential methods. To conclude about the stability of the system we do not find a general or particular solution of differential equations, but with their help we find a mathematical function, the complete derivative of which over time allows to obtain a conclusion about the stability of the system. Results. Many methods can be used to determine whether a sustainable energy system is stable or not. The most common are the Lyapunov methods and the Moiseev method. It is determined that the direct Lyapunov method refers to differential methods. The application of the direct Lyapunov method for energy problems is limited. Currently, it can be used only for some individual cases. The method of the first approximation (Lyapunov first method) has received wider application in the solution of power problems. When applying this method, which belongs to the group of methods of full integration, the right-hand sides of the equations are decomposed into power series. Originality. It is determined that one of the perspective directions of increasing the efficiency of the mathematical device work is using the methods of the second order in modeling and optimization of operating modes of electric power systems. This allows you to increase the speed and reliability of the convergence of iterative processes. Practical value. Based on the analysis of various existing methods for solving the problems of stability of energy systems, an algorithm of actions is proposed and developed, which will help to solve the problem of stability in practice.","PeriodicalId":153826,"journal":{"name":"Vehicle and electronics. Innovative technologies","volume":"163 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121822772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnostics of the technical condition and predic-tion of accident-free guaranteed operating time of heavily loaded machines gear wheels","authors":"Anatoliy Gaydamaka, Yuri Muzykin, Volodymyr Klitnoi","doi":"10.30977/veit.2021.20.0.06","DOIUrl":"https://doi.org/10.30977/veit.2021.20.0.06","url":null,"abstract":"Problem. This article highlights the current state of diagnostics of gears on the level of accumulated fatigue damage in operation. The generalization of the known information on determination of a technical condition of separate gear wheels, especially with big modules (m> 20 mm), allows to outline prospects of development of such diagnostics of a technical condition of gear wheels directly in the course of operation. Goal. The goal of this study is to develop an algorithm for diagnosing the technical condition and forecasting a fault-free operation of the gears of heavy-duty machines. Methodology. The least squares method and the confidence interval method are used to predict accident-free guaranteed gear operation. Results. A procedure for diagnosing the technical condition of gears by measuring the hardness of the metal has been developed, which includes five main stages: selection of the device; choice of measurement scheme; selection of the number of measurements, number and relative position of measuring points; development of a design of a template for measurements; development of a device for fastening templates. When determining the accident-free guaranteed operating time on the basis of several criteria of the limit state, the final decision is made on the criterion that determines the minimum term. Originality. The method of forecasting accident-free guaranteed operating time of gears is chosen taking into account the stages of running-in and stable in linear function accumulation of damage in operation. Practical value. The use of the developed procedure for diagnosing the technical condition of the gears of gearboxes of heavy-duty machines will significantly increase the efficiency of their operation due to the transition from scheduled preventive maintenance to maintenance according to the actual technical condition.","PeriodicalId":153826,"journal":{"name":"Vehicle and electronics. Innovative technologies","volume":"11641 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127600488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modification of GM Voltec Hybrid power plant cooling system to improve economic efficiency","authors":"Владислав Геннадійович Абраменко","doi":"10.30977/veit.2226-9266.2020.18.0.37","DOIUrl":"https://doi.org/10.30977/veit.2226-9266.2020.18.0.37","url":null,"abstract":"","PeriodicalId":153826,"journal":{"name":"Vehicle and electronics. Innovative technologies","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124004539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Problem statement and presentation of results of scientific research in dissertation works in tech-nical sciences","authors":"Василь Дмитрович Мигаль, Щасяна Валіковна Аргун, Андрій Вікторович Гнатов, Юрій Григорович Жарко","doi":"10.30977/veit.2226-9266.2020.18.0.6","DOIUrl":"https://doi.org/10.30977/veit.2226-9266.2020.18.0.6","url":null,"abstract":"","PeriodicalId":153826,"journal":{"name":"Vehicle and electronics. Innovative technologies","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127022410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}