Efficient Electrothermal Battery Pack Simulation with Model-Order Reduction

From 2012 Automotive Simulation World Congress: Battery electrothermal behavior can affect safety, performance and life, especially in the case of lithium-ion batteries. Numerical simulation using CFD/FEM in 3-D models is suitable for investigating and locally optimizing thermal management, but too expensive computationally for highly dynamic loads or coupled simulations with control systems. This session proposes a method using projection techniques in which FEM thermal models of battery packs are reduced to a solvable dimension for system simulation tools. The 3-D-based thermal model is then coupled with nonlinear electrical cell models for electrothermal simulation of battery packs.
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