Introduction (problem statement and relevance). In the Russian Federation, automobile transport plays one of the key roles in the economy carrying out more than half of all passenger and cargo transportation. At the same time, its operation has a negative impact on the environment and population health, especially in the cities. This is largely due to the non-exhaust emissions containing hazardous cancerogenic substances. Therefore, a task of studying the chemical composition of these emissions arises
The purpose of the study is to show the main components of the chemical composition of non-exhaust emissions, to assess the level of their relative toxicological hazard, and to develop the sampling procedure for tyre and roadway wear emissions.
Methodology and research methods. On the basis of domestic and foreign materials, the method of system analysis of results of studies of chemical composition of non-exhaust emissions has been used.
Scientific novelty and results. The main chemical components of non-exhaust emissions affecting the health of the population of large cities have been considered, the sampling procedure for particulate matters from tyre and roadway wear has been developed.
Practical significance. The information on the main components of non-exhaust emissions affecting the health of the population of large cities has been summarized, the original sampling procedure for selective analysis of tyre and roadway wear products has been developed.

Introduction (problem statement and relevance). Generally, deposits or sediments are an inevitable consequence of processes of mixture formation and combustion in the engine cylinder, complex physical and chemical processes with the hydrocarbon “participants” of this process – fuel and oil. There is no consensus in the scientific community regarding the role of these participants. Some researchers consider the “fuel” factor to be the predominant one, the others have no less reason to think it is the “oil” factor. Meanwhile, understanding the nature of formation of deposits, both the “cold” ones (in the intake path) and the “hot” ones (in the combustion chamber) is the most important condition in order to determine the methods to combat this negative phenomenon, in particular, and due to development of scientifically grounded requirements for qualitative characteristics of both fuels and oils. The relevance of the issue increases due to the fact that the existing methods of fuel testing based on foreign procedures with application of foreign reference engines become almost inaccessible following refusal of a number of the manufacturers of reference engines for standardized testing to provide further technical support caused by phasing-out of models of these engines. Moreover, during the period of common confusion in the European engine-building and uncertainty over prospects of the automotive industry on the whole, no solution was taken either for the procedure or for the new reference engine for the direct fuel injection engines increasingly dominant in the market of gasoline engines. The vacuum created is occupied by unapproved procedures with application of engines having different designs. In such conditions, correct comparison of test results obtained in different laboratories becomes almost impossible, while the results themselves lose their practical value.
The purpose of the study and its practical significance consist in study of the mechanism of deposits formation in spark ignition engines and development of methods to test fuels for tendency to form certain types of deposits. Development of domestic scientific research methodological and experimental basis for engine testing of fuels and oils for deposits formation tendencies.
Scientific novelty and results. The experimental studies, and the thermal gravimetric ones in particular, convincingly prove the hypothesis of domination of the fuel factor in formation of “cold” deposits on the intake valves. It has been experimentally shown that the results of testing following the new procedures adequately reflect the efficiency of using detergent additives.

Introduction (problem statement and relevance). Particulate filters or traps used in diesel vehicles to catch suspended particles require continuous and/or periodic regeneration in order to maintain operability. The order of diesel particulate filter loading and its regeneration can be presented in the form of an algorithm. Specific features of particulate filter functioning both in regular conditions and during active regeneration have been studied in a number of scientific papers, and the results obtained in them can be considered when developing the algorithm.
The purpose of the work is development of the algorithm of the operating cycle of the diesel vehicle particulate filter including modes of filter loading, active regeneration and troubleshooting.
Methodology and methods. Information from scientific literature regarding specific features of diesel vehicle exhaust gas aftertreatment systems operation, namely regarding particulate filters, has been collected under this study. The study assumes a noncatalytic diesel particulate filter that is contained in the system together with a diesel oxidation catalyst, nitrogen oxide reduction catalyst and ammonia oxidation catalyst. Particulate matter sensors, temperature sensors, pressure sensors, exhaust-gas flow sensors and flow sensors for fuel to burn the soot accumulated in the filter have been used as measuring instrumentation of system indicators.
Results. The created algorithm of the particulate filter operating cycle included the loading mode with definition of parameters for switching to active regeneration, definition of the transition moment between the stages of deep filtration and filtration in the soot layer. Active regeneration consisted of a sequence of two controlled fuel injections for combustion of soot in the filter and occurrence of the temperature impulse between the injections with selection of the most suitable level of exhaust gas flow rate as well as the control over the filter temperature and content of oxygen. The problems of malfunctions of the treatment system were solved by controlling the fuel supply during regeneration.
Scientific novelty. The peculiarities of processes in the particulate filter during active regeneration were considered in the algorithm development, including ensuring high efficiency of soot removal from the filter.
Practical significance. The algorithm can be used to develop a procedure to perform bench and driving tests of diesel vehicles as well as it can be applied in a diesel engine during vehicles operation

The paper is dedicated to systematization and description of technical regulation measures taken by the Government of the Russian Federation in the field of automotive vehicle safety assessment to ensure stable production under the sanctions imposed by unfriendly countries, interruption of logistic chains in vehicle component supplies and deficiency of such components. The paper analyzes differences in technical requirements for new-type vehicles released for circulation in the territory of Russia, and procedures to assess compliance with those requirements stated by the Eurasian Economic Union Technical Regulations “On Wheeled Vehicles Safety” and temporary procedure for application of obligatory requirements for wheeled vehicles and their compliance assessment introduced by the decree of the Russian Government, as well as dynamic of changes in such differences. There is also a description given for the quality management systems voluntary certification system developed within the Association of Russian Automakers (OAR), and proposals drawn up to supplement Decree of the Government of the Russian Federation No. 719 dated July 17, 2015, On Confirmation of Industrial Manufacturing in the Russian Federation with conditions for additional scoring in case vehicle assembly plants have a certain number of Tier I suppliers that have certified their quality system in terms of compliance with the OAR voluntary certification system

Introduction (problem statement and relevance). Today, computer simulation plays an important role in testing and development of new systems, especially in the field of highly automated vehicles (HAV). Virtual testing becomes an integral part of this process, given the current safety issues. With the use of modern technologies such as high-precision satellite navigation and high-quality aerial photography, it has now become possible to make accurate and exact virtual copies of road sections.
The purpose of the study is to develop a method to make a virtual copy of a road suitable for virtual testing on improvement of energy efficiency of connected HAV.
Methodology and research methods. A natural experiment based on the use of the high-precision navigation system in the vehicle provided the basis for making such virtual copy, which can be used to optimize HAV movement in order to improve HAV energy efficiency.
Scientific novelty and results. The developed map was checked for compliance with the mapping standards and was assessed for accuracy. The scientific novelty of this method is making 3D virtual copies of road sections with the use of high-precision navigation including RTK corrections and aerial photography. The resulting virtual model of the road section is ready for solving a wide range of tasks related to optimizing HAV movement and improving HAV energy efficiency.
Practical significance. This approach can have promising applications not only in the automotive industry, but also in other areas such as urban design, planning, logistics and ecology, where efficient traffic management is critical for sustainable development

Introduction (problem statement and relevance). Methods for reduction of oscillation amplitude by use of rubber-metal vibration dampers serve as important means of prevention of resonance phenomena in vehicle final drives. The article gives a methodology to determine rubber-metal damper elastic element material characteristics
The purpose of the study is to develop a systematized methodology that combines experimental and analytical methods required to determine physical properties of the elastic element material, with the objective of efficient generation of calculation or simulation models and use of rubber-metal vibration dampers.
Methodology and research methods. The presented methodology is based on conducting of experiments and development of analytical models using numerical methods for more accurate determination of material characteristics.
Scientific novelty and results. Data on elastic element material properties as well as an integrated approach to their determination are presented. The scientific novelty consists in combination of experimental data and analytical models for creation of more reliable calculation models of vibration dampers.
Practical significance. The developed methodology and the obtained data can be applied in the damper development industry and other fields of engineering for effective prevention of resonances, noises and vibrations in vehicles and other technical systems

Introduction (problem statement and relevance). Most of the kinetic energy of a vehicle equipped with an anti-lock braking system (ABS) is damped due to friction work in the brakes. Besides the ABS function, the automated braking system implements a lot of functions of active safety and driver assistance systems by using regular service brake mechanisms as an actuator. Overheating of brakes, namely of their friction pairs, leads to the phenomenon of critical fading, which is accompanied by a sharp decrease in braking torque. Reducing the impact of this phenomenon is a very difficult task in terms of both taking into account the cost of the braking mechanism and its minimum complexity. The proposed procedure makes it possible to assess the influence of operation of various active safety and driver assistance systems on the thermal load of the brake mechanisms. The prospect of its expansion when creating new vehicle designs is also covered.
The purpose of the study is to increase the reliability of brake mechanisms, braking characteristics stability by improvement of the procedure for calculation and reduction of the brake mechanism thermal load of the wheeled vehicles equipped with the automated brake system.
Methodology and research methods. Theoretical and experimental studies were conducted in the paper. In the theoretical study, the main computational tool is the finite element method (FEM) with using of licensed software packages Abaqus CAE and SolidWorks Simulink.
Scientific novelty and results. The thermal load estimation procedure for brake mechanisms of vehicles that are equipped with an automated brake system has been created. The calculation procedure developed takes into account the increase in the proportion of the vehicle kinetic energy that is extinguished in the brake mechanism of the vehicle equipped with different subsystem functions.
Practical significance. Application of the developed complex calculation procedure with any thermal calculation complexes on the FEM basis will allow brake system developers to reduce the costs for intermediate tests for thermal load at the design stage, and upon that, the influence of functional subsystems of the automated brake system will be taken into account. Application of the suggested improvement of the monitoring and control systems for the automated brake system will reduce the probability of fading phenomenon occurrence.

Introduction (problem statement and relevance). Application of sensors to increase automation of vehicles is a growing global trend. However, as the number of these devices in vehicles increases, so does the number of risk factors caused by their application.
The purpose of the study is to reduce the areas of unknown potentially dangerous situations of possible impact of these risks on a highly automated vehicle using a synthesis of the risk analysis methods.
Methodology and research methods. This paper considers the system analysis methodologies set forth in GOST R ISO 26262, ISO 21448:2022.
The scientific novelty is the interference of approaches to the analysis that are set forth in the standards.
Practical significance. The results of application of the synthesized approach to risk analysis will form the basis of studies of the prospective intelligent driver assistance systems thus allowing the development of test programs for these systems within highly automated vehicles.

Introduction (problem statement and relevance). As the number of electric vehicles equipped with high-voltage batteries (HVB) on the roads increases, there is an emerging need to ensure their safety. The purpose of the study is to justify the relevance of development of a procedure for making electric vehicles that includes review and analysis of existing studies, as well as creation of models and methods ensuring compliance of electric vehicles with passive safety requirements.
Methodology and research methods. It is planned to use finite-element modeling, to perform virtual tests and analysis of results of experiments, including modeling of cells and batteries, as well as virtual testing of vehicles taking into account safety standards.
Scientific novelty and results. The expected results include developed models and successfully performed virtual tests confirming vehicle compliance with safety standards. The scientific novelty consists in creation of an effective procedure facilitating development of safe electric vehicles.
Practical significance. The developed procedure will enable effective designing of safe HVB vehicles contributing to the development of a safe and competitive electric vehicle industry.