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Издательство:
Дата издания
05.06.2025На каком языке издана
ISSN
2788-8770Область исследования
Тип исследования
Аннотация (краткое описание)
This study focuses on the design and optimization of the geometric parameters of gears in electric vehicle (EV) transmissions to enhance performance, efficiency, and noise reduction. The optimization process was conducted using KISSsoft, considering constraints such as input speed and torque, transmission system volume, and gear ratios for each driving mode. A novel aspect of this research is the integration of transmission efficiency analysis with a variable efficiency coefficient into the optimization workflow, which has been demonstrated to significantly influence the optimal design of multi-speed EV transmissions. Throughout the optimization, key factors such as tooth bending stress, contact stress, contact ratio, and specific sliding were analyzed. Additionally, the impact of module variations on gear profile geometry, overlap ratio, tooth count, and gear pair mass was investigated. Strength calculations for the optimized gear pairs, determined for all geometric parameters using KISSsoft, were performed in accordance with the mathematical model outlined in ISO 6336, and the results were subsequently compared. The findings emphasize the critical role of profile modifications and precise gear design in optimizing gear performance, ultimately contributing to improved efficiency, reliability, and service life.DOI
10.48081/JAKQ6441Тип публикаций
Практическое значение
The practical significance of this study lies in improving the performance, efficiency, reliability, and durability of electric vehicle (EV) transmission systems through the optimized design of gear geometry parameters. The proposed optimization approach, implemented using the KISSsoft software environment, enables engineers to develop compact and high-efficiency multi-speed transmissions while considering operational constraints such as torque, rotational speed, transmission volume, and driving modes. A key practical contribution of the research is the integration of transmission efficiency analysis with a variable efficiency coefficient into the gear optimization process. This approach allows for more accurate prediction of real operating conditions and helps improve the overall energy efficiency of EV drivetrains, which can contribute to increased vehicle range and reduced energy consumption. The study also provides practical recommendations regarding the influence of module size, tooth geometry, overlap ratio, and profile modifications on bending stress, contact stress, noise generation, and wear resistance. These findings can be used to optimize gear strength, reduce vibration and acoustic emissions, and extend the service life of transmission components.Данный документ располагается в коллекциях
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