A Model-Based Sensor Fault Diagnosis Scheme for Batteries in Electric Vehicles

The implementation of each function a battery management system (BMS) depends on sensor data. Efficient fault diagnosis is essential to the durability and safety systems. In this paper, model-based scheme fault-tolerant control strategy for voltage current are proposed with recursive least-square (RLS) unscented Kalman filter (UKF) algorithms. uses an open-circuit residual generator capacity generate multiple residuals. view different applicable state charge (SOC) intervals residual, residuals need be selected according SOC evaluate whether occurs during evaluation. values sensors derived in detail based respectively, applied parameters estimations. performance approaches demonstrated evaluated by simulations MATLAB experimental studies commercial lithium-ion cell.