Robust Fault Detection Algorithm for the Smart Anti-pinch Window of Pure Electric Vehicles

Hongqiang Li,Yongqiang Meng,Hong Chen,Xiaofei Wang,Fangshu Liu

doi:10.19026/rjaset.5.4255

Hongqiang Li, Yongqiang Meng + Show 3 more

Open Access

https://doi.org/10.19026/rjaset.5.4255

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Abstract

In order to effectively solve the risk of safety on power window, an improved pinch detection algorithm based on the fault detection observer estimation is proposed for an anti-pinch window control system. In designing a residual generator, the proposed fault detection algorithm makes use of the pinch torque rate information by establishing the mathematical model of DC, considered as a fault under the pinched condition. By comparing the residual signal with the pre-designed threshold, the occurrence of pinch is detected. The fault detection observer takes into account robustness against disturbances and sensitivity to faults, simultaneously, both of which are regarded as optimization problems. In this study, the mixed H-/H∞ performance index and reference model fault detection method are advanced to solve the optimization problem in the Linear Matrix Inequality (LMI) which transforms a mathematical problem. The simulation results of the detection time obtained from the two methods are 0.15 and 0.07s, respectively, proving that the use of the fault detection algorithm is effective for an anti-pinch window. The co-simulation based on CANoe-MATLAB is proposed to verify the algorithm again. Moreover, under the premise of strong robustness, the reference model method is superior to the mixed H-/H∞ performance.

Highlights

In the automotive industry, electronic systems are used to provide customer comfort in various vehicles, and to put forward new requirements for vehicles, such as power windows (Ma et al, 2008)
The details of the devise for the robust fault detection observer based on the two methods will be discussed
The pinch torque rate detection algorithm based on robust fault detection is proposed

Summary

Introduction

Electronic systems are used to provide customer comfort in various vehicles, and to put forward new requirements for vehicles, such as power windows (Ma et al, 2008). A power window automatically rises and falls. Power windows bring security issues, such as the possibility of hurting the body part located in the path of the window (Hye et al, 2008). Numerous accidents caused by a power window due to the lack of safety precaution have been reported. An anti-pinch window control system is paid much attention. This system effectively solves the security risks and allows the window to work normally without affecting the comfort of the passengers

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