Whole body vibration and rider comfort determination of an electric two-wheeler test rig.

Q2 Pharmacology, Toxicology and Pharmaceutics F1000Research Pub Date : 2024-10-30 eCollection Date: 2023-01-01 DOI:10.12688/f1000research.131105.3

Keerthan Krishna, Sriharsha Hegde, Mahesha G T, Satish Shenoy B

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Abstract

Background: Two-wheeled vehicles are the major mode of transportation in India. Such vehicles are exposed to excessive vibration on the road when compared to four-wheeled vehicles. However, the research on the reduction of whole body vibration in the case of two-wheelers is not explored in detail. The present study predicts rider comfort in the case of an electric two-wheeler as per ISO 2631-1, by obtaining the finding the weighted acceleration at the strategic locations of vibration at the test rig.

Methods: An electric two-wheeler test rig is used in the study. The values of acceleration from the test rig in running conditions are obtained by using NI LabVIEW 2019. The drive cycle of the electric vehicle (EV) test rig is controlled by Sync sols' EV lab software. Obtaining the weighted root mean square (RMS) acceleration from running the test setup, it is compared with the ISO 2631-1 standard to obtain the rider comfort.

Results: Loading area, traction motor, base mount, and suspension were found to be the strategic points of vibration. Frequency weighted RMS acceleration of 0.3 to 0.4 m/s ² obtained at these points are prone to cause discomfort for the rider. Vehicle speed, road profile, and duration of exposure were found to be important parameters affecting the rider's comfort. A maximum of 4.6 m/s ² amplitude was observed. The loading area, which corresponds to a rider's seat in actual vehicle, is important and reduction of these vibrations make the ride comfortable for the rider. Suspension and base mount of the test rig are found to be uncomfortable observing the weighted RMS acceleration.

Conclusions: A suitable damping technique design is very much essential in reducing these vibrations and improve the rider comfort, as many more non-deterministic vibrations are prone to cause dis-comfort in case of actual on road riding conditions.

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电动两轮车试验台的全身振动和驾驶舒适性测定。

背景：两轮车是印度的主要交通工具。与四轮汽车相比，这类汽车在道路上受到的振动过大。然而，有关减少两轮车全身振动的研究还不够深入。本研究根据 ISO 2631-1 标准，在电动两轮车的情况下，通过获取测试台振动战略位置的加权加速度，预测骑行者的舒适度：研究使用了电动两轮车试验台。方法：研究中使用了一台电动两轮车试验台，使用 NI LabVIEW 2019 获得了试验台在运行条件下的加速度值。电动汽车（EV）试验台的驱动循环由 Sync sols 的电动汽车实验室软件控制。通过运行测试装置获得加权均方根（RMS）加速度，并将其与 ISO 2631-1 标准进行比较，以获得骑行者的舒适度：结果：负载区、牵引电机、底座和悬挂系统被认为是产生振动的关键点。在这些点上获得的频率加权有效加速度为 0.3 至 0.4 m/s 2，容易引起乘坐者的不适。研究发现，车速、路面状况和暴露时间是影响骑手舒适度的重要参数。观察到的最大振幅为 4.6 m/s 2。加载区域（相当于实际车辆中骑手的座位）非常重要，减少这些振动可使骑手感觉舒适。通过观察加权均方根加速度发现，试验台架的悬挂装置和底座不舒适：合适的阻尼技术设计对于减少这些振动和提高驾驶舒适性非常重要，因为在实际道路驾驶条件下，更多的非确定性振动很容易造成不舒适。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

F1000Research Pharmacology, Toxicology and Pharmaceutics-Pharmacology, Toxicology and Pharmaceutics (all)

CiteScore

5.00

自引率

0.00%

发文量

1646

审稿时长

1 weeks

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