Recently, research on electric vehicles has been actively conducted due to environmental pollution problems. Permanent magnet synchronous motors (PMSM) are mainly used as traction motors for electric vehicles. Fail safe for the PMSM of traction system...
Recently, research on electric vehicles has been actively conducted due to environmental pollution problems. Permanent magnet synchronous motors (PMSM) are mainly used as traction motors for electric vehicles. Fail safe for the PMSM of traction system is essential to ensure the stability and reliability of the vehicle. In this paper, modeling of an electric vehicle traction system was performed, and a state observer was designed to diagnose inter turn short circuit (ITSC) fault, which mainly occurs among PMSM actuator faults. Nonlinear Moving Horizon Estimation was used as the state observer, and the fault diagnosis algorithm was verified in a simulation environment for the proposed state observer.