Dynamic Analysis of High-Speed Helical Gear Transmission in Pure Electric Vehicle Gearbox

Zhang, Yanchao; Du, Jinfu; Mao, Jin; Xu, Min

doi:10.1155/2020/6639372

Cited by 4 publications

(2 citation statements)

References 21 publications

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“…Condition monitoring of the transmission assembly was performed using vibration signals collected from an all-terrain vehicle (ATV) transmission. From the results of finite element analysis, they identified the defective parts of the gear [24][25][26] .…”

Section: Discussionmentioning

confidence: 99%

Finite Element Analysis for Improved All-Terrain Vehicle Component Design

Lalit N. Patil,

Atul A. Patil,

Kishor B. Waghulde

et al. 2023

Evergreen

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All-terrain vehicle (ATV) is an off-road vehicle that can be easily driven over any terrain. However, because to the severe stresses imposed by the gravel tracks and the weight limits, one critical component such as the Reduction Gearbox is prone to failure. The gearbox is an expensive component, and if it fails, the vehicle becomes immobilized. Therefore, the aim of the present work is to design, develop and analyze the ATV components for enhancement in life. These analytical designs have been validated using CAD models with FEA tools. Various Analyses like Structural, Repeated loads and Finite Element Analysis (FEA) has been performed to study the behaviour of components and oil flow during operations. The results shows that all the components are not prone to fail within the specified operating limits based on the analytical calculations and Finite Element Analysis.

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Section: Discussionmentioning

confidence: 99%

Finite Element Analysis for Improved All-Terrain Vehicle Component Design

Lalit N. Patil,

Atul A. Patil,

Kishor B. Waghulde

et al. 2023

Evergreen

View full text Add to dashboard Cite

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“…In particular, they gained considerable attention for developing the first-ever 2-speed eAxle model. Particularly, by supplying this technology to the BMW i8 plug-in hybrid sports car, its utility has been proven [21][22][23]. The advantages of GKN's 2-speed eAxle model are numerous.…”

Section: Introductionmentioning

confidence: 99%

Two-Speed Transmission Structure and Optimization Design for Electric Vehicles

Jeong,

Han,

Kim

et al. 2023

Machines

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The trend in the global automotive industry is moving towards electric vehicles that do not emit exhaust gases and use eco-friendly fuel. Electric vehicles are more eco-friendly compared to internal combustion engine vehicles, as they emit less carbon dioxide and pollutants. Research and development are actively underway to produce new electric vehicle models in the rapidly growing electric car market. In this study, a 2-speed transmission for electric vehicles, applicable to 300 Nm-class electric cars, has been developed. The 2-speed transmission structure enables efficient energy use and utilizes a planetary gear set and wet multi-plate clutch, which are effective in the power transmission process. The 2-speed transmission developed through the research results of this paper has a compact structure optimized for electric vehicles. The design feasibility of the transmission was verified through performance tests of the prototype, contributing to fuel efficiency improvement and environmental enhancement.

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Numerical and experimental investigations on the vibration behavior of a high-speed planetary gearbox

Schweigert,

Morhard,

Oberneder

et al. 2024

Forsch Ingenieurwes

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Increasing the speed of the electric motor can significantly improve the power density of the powertrain of EVs (Electric Vehicles), resulting in a smaller size and thus weight and cost advantages. Achieving acceptable NVH behavior becomes more difficult at higher speeds, partly because the excitation frequencies of the gears cover a wider frequency range and therefore higher natural frequencies can also be directly excited. In the Speed4E joint research project, a high-speed electromechanical powertrain was developed, manufactured, and tested to investigate the main challenges on the NVH- and efficiency-behavior of high-speed powertrains. The high-speed design of the Speed4E drivetrain results in maximum electric motor speeds of up to 50,000 rpm, combined with a torque of up to 45 Nm at the transmission input shafts. This study presents the experimental results on the vibration behavior of the high-speed planetary gearbox, a comparison with the corresponding results of a highly efficient calculation method of the gearbox vibration excitation, and the theoretical background of the calculation method is presented. The results indicate the potential to improve the vibration behavior of high-speed drives in EVs and provide a deep understanding of the challenges associated with high speeds.

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Dynamic Analysis of High-Speed Helical Gear Transmission in Pure Electric Vehicle Gearbox

Cited by 4 publications

References 21 publications

Finite Element Analysis for Improved All-Terrain Vehicle Component Design

Finite Element Analysis for Improved All-Terrain Vehicle Component Design

Two-Speed Transmission Structure and Optimization Design for Electric Vehicles

Numerical and experimental investigations on the vibration behavior of a high-speed planetary gearbox

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