Shunt-based management system offers precision current measurement in battery management

The Fraunhofer Institute for Integrated Systems and Device Technology (IISB), Erlangen, is using Isabellenhütte’s shunt-based management system IVT-S for precision current measurement in battery management systems in its foxBMS development platform. The series offers precise, temperature-compensated current and voltage measurement in a single component. Their systems are mainly used in the rapidly growing market for lithium-ion traction batteries and can be found in electric cars, electric trucks, electric buses and electric aircraft as well as in materials handling. foxBMS is a research and development platform for battery management systems, which was developed by the Fraunhofer IISB based in Erlangen. It is an open-source platform, meaning that any companies or research institutes are free to use it to develop or test their own products – such as electric vehicles or applications with similar requirements. Fraunhofer IISB uses the measurement system to achieve high-precision current measurements in the foxBMS platform. “We opted for the IVT-S from Isabellenhütte because this current sensor offers precision current measurement in combination with coulomb counting to determine state of charge in automotive battery systems up to 1,000 V,” explains Dr.-Ing. Vincent Lorentz, group manager Battery Systems at Fraunhofer IISB.