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基于双自适应Kalman滤波的线控转向汽车传感器故障诊断

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Keywords: 汽车工程,线控转向系统,双自适应Kalman滤波,残差门限故障诊断,传感器

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Abstract:

?为了解决相对于传统转向系统而言的结构改变带来的可靠性和安全性问题,对线控转向系统主要传感器的故障诊断方法进行了研究。在建立线控转向系统和整车联合动力学模型的前提下,以基于假设检验的双自适应渐消Kalman滤波技术为平台,结合根据各传感器工作状态确定的故障特征向量,构建了线控转向汽车主要传感器的残差门限故障诊断方法,并利用现有的线控转向系统试验台进行了硬件在环仿真验证。结果表明:该方法可以应用到线控转向汽车传感器的故障诊断中,达到了提高系统可靠性和安全性的目的。

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