Analysing vibration environment of a power battery in a running electric vehicle
by Ruixue Liu; Zhichao Hou; Shuyu Wang; Deke Sheng
International Journal of Electric and Hybrid Vehicles (IJEHV), Vol. 13, No. 1, 2021

Abstract: Power batteries in electric vehicles are subjected to vibration during vehicle's driving. Clarifying battery vibration characteristics in service conditions is the basis for understanding battery performance and for structure improvement. The acceleration responses at multiple points on a battery pack are measured on various road conditions in this study. Indicators, namely, the standard deviation of acceleration root-mean-square (SD-ARMS) and fatigue damage spectrum (FDS), are introduced to analyse vibration differences among various positions and with vibration test standards. Time-forced vibration test profiles are derived based on the calculated FDS curves. The findings are first to indicate obvious vibration inconsistency among the sampling points in the Z direction, with high SD-ARMS values. The fatigue damage values computed from measured data and from standard vibration profiles significantly deviate. This research provides an intact method from measurements, and evaluates vibration levels to generate time-forced vibration profiles for battery durability assessment.

Online publication date: Mon, 24-May-2021

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Electric and Hybrid Vehicles (IJEHV):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com