On 18–19 October 2022, the annual International Automobile Scientific Forum (IASF-2022) “Sustainable Development of Russian Automotive Industry under Present-Day Conditions” took place. The event format assumed both offline and online participation. The issues of providing technological sovereignty of the Russian automotive industry and development of domestic component base, technical and technological developments in the field of innovative land vehicles and systems were discussed during the Forum. Within the Forum, an exhibition of technical achievements of FSUE “NAMI” and manufacturers of automotive vehicles and components was held dedicated to the domestic innovative solutions in terms of vehicle decarbonization, highly automated intelligent vehicles and intelligent control systems. Components of electric, hybrid and intelligent vehicles, electronic control units, assemblies and aggregates of powertrains, electric traction vehicles and hybrid vehicles with additional power sources were also presented. The competition was held in two categories: “Best Student Scientific Paper” and “Best Graduate Student and Young Specialist Scientific Paper”. 18 applications were fi led for the competition from the educational, scientific and production companies and organizations.

In July 2021, the EU approved the Fit for 55 package, one of the aims of which was to completely cease manufacturing vehicles with internal combustion engines (ICE) in the EU by 2035. Will this happen or does the ICE still have chances to remain a part of the vehicle powertrain for a long time to come? In recent years, the topic of so-called e-fuels or electrofuels – synthetic fuels created based on green hydrogen (produced with the help of green electricity) and carbon dioxide extracted from the atmosphere – has been extensively discussed in Europe and in the USA. Their main advantage, as the supporters of e-fuels claim, is that they are produced from renewable natural materials – water and air – and are ecologically neutral. Is it true and will e-fuels save the ICE?

Introduction (statement of the problem and relevance). The expansion of the activities of the working bodies of ISO and the UN Economic Commission for Europe, aimed at assessing the degree of pollution of the habitable space of vehicles, has led to the creation of a working group responsible for developing a test method for assessing volatile organic compounds from interior parts. The purpose of the study is to present the directions of the work of the working group ISO/TC 22-ISO/TC 146/SC 6/WG 13 “Determination of VOC’s in car interiors” and the stages of further development of research within the framework of the UNECE ITC activities (WP.29, GRPE).

Methodology and research methods. The development and creation of a test method within the framework of the activities of international groups ISO and UNECE ITC is presented.

Scientific novelty and results. The results of regulatory activities within the framework of the interstate standardization system of the Russian Federation and the countries of the Customs Union on the adaptation of the new European standard regulated by WP.29 and Mutual Resolution (M.R.3) are presented.

Practical significance. Promising areas of work on the implementation of international studies have been identified, culminating in the development of a domestic standard with further introduction into the practice of testing and certification, carried out in accordance with the requirements of the Technical Regulations of the Customs Union “On wheeled vehicles safety”.

Introduction (problem statement and relevance). Energy efficiency is one of the most important properties of present-day vehicles. Energy efficiency increasing allows reducing the costs for vehicle movement and for cargo and passenger transportation respectively, as well as decreasing harmful environmental impact. Vehicle energy efficiency increasing can be achieved in different ways, including by optimizing the law of control of the power supplied to the running gear in order to decrease energy consumption for motion caused by wheel slipping (spinning). The research objective is to increase the wheeled vehicle energy efficiency by means of optimal control of the power supplied to the running gear.

Methodology and research methods. Vehicle driving inevitably consumes energy, part of which ensures tractive or propelling force generation in the driving wheels when overcoming resistance to motion, while other part is spent to transform energy supplied to the running gear and losses for wheel slipping. Thus, a vehicle energy efficiency increase can be reached by optimal control of the power supplied to the running gear. The loss power in the process of vehicle motion when interacting with the environment is used as a target function in solving this optimization problem. Besides decreasing the energy costs or consumption for the motion, the required vehicle traction level shall be ensured in order to ensure the driving speed mode set by the driver. In this regard, when solving the optimization problem the equality-type constraint describing the mentioned condition shall be taken into account. The method of Lagrange multipliers is used to solve the optimization task.

Scientific novelty and results. When developing the control law for the power supplied to the running gear, one shall use additional information on interaction of the wheels with the supporting surface. An additional source of information here is the axial force on the wheel axis measured by installation of the force measuring (dynamometrical) wheels that are an integral part of the wheeled vehicle design. The developed control law for the power supplied to the running gear allows ensuring higher energy efficiency of a vehicle, thereby leveling the disadvantages of the known transmission types with a coupled and individual drive: locked, differential and individual distributing tractive effort torques between the wheels in proportion to the actual normal loads.

Practical significance. Application of the developed control law for the power supplied to the running gear will allow, using a common transmission control approach, ensuring of high traction properties under various conditions as well as reduction of energy costs for vehicle motion without requiring additional differential lock control, in case of differential interconnections, and will also allow prevention of additional tyre wear or transmission element malfunction when power circulation occurs in case of a locked drive.

Introduction (problem statement and relevance). The task of traffic safety improving determines the need to maintain the vehicle safety parameters checked and tested during certification throughout the entire life cycle of the vehicle – from design to disposal.

The research objective is to analyze the current state of safety requirements applicable to vehicles at different life cycle stages contained in the UN Regulations, regulatory documents of other countries and in the Eurasian Economic Union Technical Regulations on Wheeled Vehicles Safety.

Methodology and research methods. The research methodology is the analytical method.

Scientific novelty and results. The scientific novelty consists in the analysis results showing that the vehicle type approval procedure is a separate stage of the vehicle life cycle and that the existing control system for the vehicle technical state in the form of technical inspection does not ensure traffic safety to the full. The proposal is to add random road inspections to the technical inspection of socially dangerous vehicles. It is also proposed to complement the existing technical regulations On Wheeled Vehicles Safety with the requirements for vehicle disposal and component reuse conditions.

Practical significance. The research results can be used when improving the Eurasian Economic Union vehicle technical regulations and when developing the Russian Federation national legislative acts in this field.

Introduction (problem statement and relevance). Designing gear shifting algorithms is one of the major problems in development of control systems for automatic gearboxes. Structure and parameters of these algorithms govern such characteristics of shifting processes as torque transients and energy dissipation due to clutch slippage; these, in turn, affect vehicle comfort and lifespan of the gearbox components. In particular, one of the factors defining the said characteristics is engine torque control provided during gear shifts. The functionality of the torque control extends when using the gearbox as a part of a hybrid powertrain with a traction electric machine connected to the gearbox input shaft. Studying gear shifting processes in this aspect is a relevant task aimed at improving control systems of automatic transmissions.

The purpose of the study is to compare different methods of controlling torque at the gearbox input shaft regarding their effect on gear shifting dynamics, clutch energy dissipation, and vehicle comfort.

Methodology and research methods. The study was conducted by means of simulations using a mathematical model describing dynamics of a vehicle equipped with an automatic gearbox with an option of having an electric machine installed at the input shaft. Considering straight-line accelerated motion of the vehicle, both upshifts and downshifts were simulated with a correcting torque introduced in inertia phases of the shifts. Analysis of the simulation results allowed calculating key parameters of vehicle dynamics and clutch energy dissipation.

Scientific novelty and results. The simulation results show a significant decrease (aver. 40%) of jerks when using an electric machine to correct the input shaft torque in inertia phases of both upshifts and downshifts. It is also shown that correction of the shaft torque allows reducing energy dissipation due to clutch slippage by 16–24% in the case of engine torque control and by 28–34% in the case of torque correction by an electric machine. However, using torque correction by means of an electric machine during downshifts raises the clutch energy dissipation 1.4–2.4 times.

The practical significance. The results of the study can be used in designing control systems for automatic gearboxes intended for both conventional and electrified vehicles.

Introduction (problem statement and relevance). The task of emission control and reduction for internal combustion engines (ICE) is a relevant issue of the modern engine building. However, the catalytic converters potential is limited and almost exhausted. The paper authors study the possibility to partially reduce toxic emissions directly in the engine combustion chamber by means of the ceramic coating formed on the piston crown.

The purpose of the paper is to study the influence of the coating formed by the method of microarc oxidation on the combustion chamber parts on the ICE exhaust toxicity.

Methodology and research methods. The experimental method of research was applied. The research was carried out on the RMZ-551i engine. Engine tests were performed in various load modes: the rotation rate changed from 2000 to 6000 rpm, and the throttle opening amounted to 25, 50, 75 and 100% in each speed mode.

Results. The paper presents experimental data proving the real possibility to decrease the ICE exhaust gas toxicity through formation of a ceramic coating on the piston crown. A relative decrease of carbon monoxide concentration in exhaust gases by 3.1% was noticed when using coatings on pistons compared to using standard pistons. Along with the decrease of CO amount, a relative increase of carbon dioxide (СО₂) concentration by 2.1% is noticed.

Practical significance. The provided experimental data obtained in the engine tests showed the possibility to partially reduce the amount of toxic components in exhaust gases directly in the combustion chamber by means of the coating on the piston crown formed by microarc oxidation method.