Using Battery Digital Twins to Elevate EV Performance and Life
Daily Feed: We've talked about digital twins in the last office-hours. Simply said, these are a close enough replica of the actual system put together by studying them and tend to behave with the same input/output characteristics (like a photocopy of yours's looks just like you!)
Some impactful use cases are in automotive, energy domain where the amount of parameters involved are hefty and not easy to analyze them. This articles shows one interesting use-case for batteries https://eepower.com/industry-articles/using-battery-digital-twins-to-elevate-ev-performance-and-life/#
There are some interesting startups in this domain as well like https://www.twaice.com/ and one project by Bosch https://www.bosch-mobility.com/en/solutions/software-and-services/battery-in-the-cloud/battery-in-the-cloud/
TWAICE Battery Analytics Software
Generate more value from batteries whilst reducing risks. Speed up battery development, reduce risks during operation, and improve revenue and ROI throughout the battery lifetime.
Battery in the cloud
Smart battery solutions with connected services for optimization of the battery condition and lifetime
Using Battery Digital Twins to Elevate EV Performance and Life - In...
Battery digital twins continuously collect battery and vehicle data over the system’s lifetime, accurately estimating the battery’s current and predicting the future state of charge.
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I’m the intersection of multiple topics we’ve covered, Siemens Tessent portfolio is based on the acquisition of a RIAC-V startup called UltraSoC: https://eda.sw.siemens.com/en-US/ic/tessent/embedded-analytics/
They developed a technology called “embedded analytics”, which embeds the equivalent of performance/security watchdog IP in an SoC for monitoring. The data is pulled out over the AXI or similar bus and potentially out to an interconnect:
https://hc32.hotchips.org/assets/sponsors/UltraSoC/UltraSoC%20overview%20brochure.pdf
Siemens Digital Industries Software
Tessent Embedded Analytics
Tessent Embedded Analytics is a leader in RISC-V trace and debug, enabling real-time debug and post deployment analytics for complex system on chips.
So this is why I believe a true digital twin is so far out. The physical system needs to be equipped with technologies essentially from the transistors up to be able to actually mirror its state into a model. You’re not going to do that on most devices for a long, long time until this type of technology gets embedded into common offerings (like something similar to Arm System IP) OR the system in question is of enough value to warrant the extra cost to monitor it … like automotive or energy 🙂
This Siemens thing is a porbe for chip level. It's to monitor and troubleshoot the custom silicon one develops. What they are offering in the UltraSoC package an IP block which can be linked to the user's system through external interfaces or also be included within the user's design itself. This essentially need not be fabricated to hard silicon on every chip rather for using while emulating on a FPGA or plug this as external debugger having UltraSoC IP in it.
Fundamentally, digital twins are to predict what might be happening in the system when you can't see what's happening in real. Getting 'might be' to 'real' is through tuning the twin model based on actual data acquired at some point or intermediately but not essentially continuous monitoring.
Tessent now integrates some of the IP acquired from UltraSoC which is where they got the RISC-V from. See the Tessent page
Tessent Solutions
What is silicon lifecycle management? - Tessent Solutions
The next step in IC test and monitoring by Aileen Ryan - Senior Director of Portfolio Strategy, Siemens Digital Industries Software
Interesting! Probably they want continuous log the system as it runs the process. Like in data center apps .
Yeah they are using it now to improve chip design generation over generation. It’s pretty intriguing but you could feed this back into a DT model, right? Like if you overclock a processor for a period how much degradation occurs? Stuff like that would have to be captured in the twin.
Can you explain re data center apps?
Good, That;s a lot of data for an automotive. I see now why pople want to move further from CAN to Ethernet.'
Depends on what’s being monitored but for sure if you had it on all ECUs/domain controllers you’d need a fatter pipe for sure.
Oh, I meant the use case for continuous monitoring in high performance chips could be in the data centre applications.
yeah, this looks like a good recipe for modelling a twin.
Oh yeah that would be a no brainer application