Battery Cloud with Advanced Algorithms
- URL: http://arxiv.org/abs/2203.03737v1
- Date: Mon, 7 Mar 2022 21:56:17 GMT
- Title: Battery Cloud with Advanced Algorithms
- Authors: Xiaojun Li, David Jauernig, Mengzhu Gao, Trevor Jones
- Abstract summary: A Battery Cloud or cloud battery management system leverages the cloud computational power and data storage to improve battery safety, performance, and economy.
This work will present the Battery Cloud that collects measured battery data from electric vehicles and energy storage systems.
- Score: 1.7205106391379026
- License: http://creativecommons.org/licenses/by-sa/4.0/
- Abstract: A Battery Cloud or cloud battery management system leverages the cloud
computational power and data storage to improve battery safety, performance,
and economy. This work will present the Battery Cloud that collects measured
battery data from electric vehicles and energy storage systems. Advanced
algorithms are applied to improve battery performance. Using remote vehicle
data, we train and validate an artificial neural network to estimate pack SOC
during vehicle charging. The strategy is then tested on vehicles. Furthermore,
high accuracy and onboard battery state of health estimation methods for
electric vehicles are developed based on the differential voltage (DVA) and
incremental capacity analysis (ICA). Using cycling data from battery cells at
various temperatures, we extract the charging cycles and calculate the DVA and
ICA curves, from which multiple features are extracted, analyzed, and
eventually used to estimate the state of health. For battery safety, a
data-driven thermal anomaly detection method is developed. The method can
detect unforeseen anomalies such as thermal runaways at the very early stage.
With the further development of the internet of things, more and more battery
data will be available. Potential applications of battery cloud also include
areas such as battery manufacture, recycling, and electric vehicle battery
swap.
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