The invention belongs to the technical field of automobiles, and particularly relates to a fault diagnosis and fault-tolerant control method for a corner sensor of an integrated brake system. Comprising the following steps: step 1, establishing a corner information estimation model based on a corner signal of SVR; 2, carrying out the fault diagnosis of the corner sensor based on a residual analysis principle; and step 3, if the corner sensor is judged to have a fault, a fault-tolerant control method is adopted. Motor rotation angle estimation is carried out through a support vector machine regression algorithm, fault diagnosis of a sensor is realized by utilizing a residual analysis principle, motor control is carried out by adopting a position-sensorless control strategy after the sensor has a fault, brake pressure control is finally realized, a brake control function is completed, and the reliability of IBC is effectively improved.
本发明属于汽车技术领域,具体的说是一种集成式制动系统转角传感器故障诊断与容错控制方法。包括以下步骤:步骤一、基于SVR的转角信号建立转角信息估计模型;步骤二、基于残差分析原理进行转角传感器故障诊断;步骤三、若判断转角传感器存在故障后,采取容错控制方法。通过支持向量机回归算法进行电机转角估计、利用残差分析原理实现传感器的故障诊断,在传感器故障后采用无位置传感器控制策略进行电机控制,最终实现制动压力控制,完成制动控制功能,有效提高了IBC的可靠性。
Fault diagnosis and fault-tolerant control method for corner sensor of integrated brake system
一种集成式制动系统转角传感器故障诊断与容错控制方法
2024-01-23
Patent
Elektronische Ressource
Chinesisch
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