Part of Onboard BMS should estimate battery’s State-of-Health independently from the cloud.

Truly reliable energy infrastructure should be as autonomous as possible. There are many low-probability but high-impact risks in centralising monitoring and control of the energy infrastructure (including Li-ion batteries) in the clouds. Terrorists can hack into the cloud and disrupt operation of the infrastructure by providing wrong estimates and commands. Internet can stop working due to a grid blackout (which is exactly the moment when batteries should critically remain operational and reliable). Unless the cloud BMS is meticulously implemented on top of multi-datacenter, multi-cloud computing infrastructure, it's also affected by datacenter and cloud provider outages.

Today, when people replace their cars, they still often choose gasoline cars over electric vehicles because they believe that electric vehicles are less reliable and less predictable than vehicles running on fuel (even though this is not true anymore). It will definitely not help to instil trust in electric technology, either, if we tell people that in order to work reliably, the battery in their vehicle must periodically receive some information from the internet.

More generally, Decentralise and diversify.

Via Digital twin for battery systems: Cloud BMS with online SoC and SoH estimation.

In particular:

• Onboard BMS should detect anomalies and report failures itself
• Focus on building the most reliable, safe, and autonomous BMS

Related:

• People will not trust batteries that have to be constantly online
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See also:

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