Coupled electrothermal model and thermal fault diagnosis method for lithium-ion battery

• DOI: 10.1504/ijvd.2024.136235
• Publication Date: 2024-01-24T14:16:55Z
• Authors: Qiuting Wang; Wei Qi

The dynamic behaviour of lithium-ion battery system is analysed. nonlinear parameters, residual errors and thermal faults model are studied. In our study, a coupled electrothermal established based on the cell electrical characteristics. parameter identification algorithm presented Lyapunov observer. core temperature surface calculated extended Kalman filter (EKF). We propose new fault diagnosis method generation scheme. urban dynamometer driving schedule (UDDS) working condition used to verify method. experimental results indicate that characteristics can be described diagnosed more accurately.