Hybrid SOC Estimation for LiFePO4 Batteries Using Observability- and Innovation–Reliability-Regulated EKF with Reliability-Scaled Residual Learning
Accurate state-of-charge (SOC) estimation of lithium iron phosphate (LiFePO4) batteries is challenging because the voltage feedback used for correction does not provide constant SOC-related information under different operating conditions. Conventional extended Kalman filters (EKFs) usually apply measurement correction...