Journal
ENERGIES
Volume 10, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/en10070919
Keywords
thermal runaway; battery systems; big data platform; National Service and Management Center for Electric Vehicles
Categories
Funding
- National Natural Science Foundation of China [U1564206]
- Special Innovation Methods Program of Science and Technology Ministry of China [2015IM030100]
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A thermal runaway prognosis scheme for battery systems in electric vehicles is proposed based on the big data platform and entropy method. It realizes the diagnosis and prognosis of thermal runaway simultaneously, which is caused by the temperature fault through monitoring battery temperature during vehicular operations. A vast quantity of real-time voltage monitoring data is derived from the National Service and Management Center for Electric Vehicles (NSMC-EV) in Beijing. Furthermore, a thermal security management strategy for thermal runaway is presented under the Z-score approach. The abnormity coefficient is introduced to present real-time precautions of temperature abnormity. The results illustrated that the proposed method can accurately forecast both the time and location of the temperature fault within battery packs. The presented method is flexible in all disorder systems and possesses widespread application potential in not only electric vehicles, but also other areas with complex abnormal fluctuating environments.
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