LMI-Based Method of Robust Fault Detection H 4 Filter for Anti-Pinch of Pure Electric Vehicles

Abstract

Abstract: In order to effectively solve the risk of safety on power window, this study introduces the LMI-based method of designing robust fault detection H 4 filter for anti-pinch window control system. For detecting the pinched condition, the pinch torque is considered as a fault to design a residual generator. By comparing the residual signal with the pre-designed threshold, the occurrence of pinch can be detected. The main contribution consisted of the formulation of the multi-objective optimization H 4 and H -problem as H 4 optimization problem by using the residual error instead of residual. The solution of the optimization problem is solved via LMI technique. Based on MATLAB, the results show that the algorithm can detect the fault after it occurs 70 ms. In addition, simulation results show that the proposed algorithm has high sensitivity to fault and strong robustness to uncertainties