The article “Modelling the Performance of Auxiliary Power Unit for Range-Extended Electric Vehicles (REEVs)” is devoted to the study of energy efficiency, optimization, and technical possibilities of integrating auxiliary power units (APUs) into the structure of modern electric vehicles. In today’s context, when the global automotive industry is moving towards sustainable energy and the electrification of transport, the development of range-extending technologies becomes an urgent task. The research highlights the role of APUs as a key component in REEVs, which not only ensures extended driving distance but also improves the stability and reliability of energy supply for traction batteries. The annotation outlines the main objectives of the study, which include: analyzing different types of APUs (internal combustion engines, fuel cells, microturbines), comparing their energy efficiency and environmental performance, and creating a mathematical model to evaluate system behavior under various load and driving conditions. The article also emphasizes the significance of simulation modelling, which allows predicting fuel consumption, emission levels, thermal management, and the overall balance between performance and sustainability. Furthermore, the work discusses the methodological basis of modelling, which relies on MATLAB/Simulink and other digital simulation tools. Special attention is given to optimization parameters such as fuel efficiency, cost-effectiveness, noise reduction, and compactness of design. The study underlines that in REEVs, the auxiliary power unit does not operate continuously, but rather in a strategically optimized mode, depending on the state of charge of the main battery and real-time driving demands. This approach significantly reduces fuel consumption compared to conventional vehicles and enhances the environmental benefits of electric mobility. The research findings demonstrate that the integration of APUs in REEVs offers a balance between the advantages of battery electric vehicles (zero direct emissions during electric drive) and the reliability of hybrid solutions (longer driving range). The proposed model serves as a practical tool for automotive engineers, energy system designers, and policymakers interested in accelerating the adoption of REEV technology.
| Mualliflar | Keldiyarova Shuhrat Qizi, Malika, Komilovich, Ruzimov Sanjar |
|---|---|
| Jurnal | Innovative Multidisciplinary Journal of Applied Technology |
| Nashr sanasi | 2025-09-03 |
| Jild | 3 |
| Son | 9 |
| Betlar | 35-41 |
| Til | Ingliz |
engine efficiency map, optimal operating line, auxiliary power unit, REEV
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