An Advanced Battery Management System for Lithium Ion Vehicle Batteries

Impact Technologies, in collaboration with the Penn State Applied Research Laboratory and our OEM partners, proposes to develop and demonstrate an advanced battery management system for lithium-ion vehicle battery packs that ensures adequate, safe, and reliable operation. This system will produce an accurate assessment of state of charge (SOC), state of health (SOH), and state of life (SOL) and will provide electric and thermal control to provide voltage and temperature balancing across the many modules/cells needed to operate hybrid electric and electric vehicles. Phase I will strive to demonstrate the ability to assess SOC (with a 5% accuracy), SOL, and SOH at the cell/module level. Phase II will extend these development for larger packs (> 10 kWh) and develop the other pertinent hardware/software pieces needed to monitor (cell temperature, voltage, and impedance), balance/control (during charge and discharge), and safely operate these larger battery packs, as well as communicate pertinent information to an outside control module. Advanced prognostics will also be developed for prediction of available power and remaining capacity. A prototype unit will then be produced and tested with our OEM partners. In Phase III, we will work with our OEM partners to transition the technology into military and commercial applications.