基于卡尔曼滤波器的传感器故障诊断

Sensors Fault-diagnosis Based on Accommodation Kalman Filter

传感器故障诊断是当今研究的热点领域。利用卡尔曼滤波器及多重故障假设检验方法检测发动机控制系统传感器硬、软故障,并实现故障传感器的输出重构。仿真表明,所研究的方法能及时、有效地检测到故障传感器,并对其进行隔离和重构,没有发生误报和漏报现象。

It is vital for sensor diagnosis among investigative fields.According to Kalman filter and maltiple-failure-hypothesis based testing,the sensor failures are detected,isolated and accommodated in turbofan engine control system.Simulation results illustrate this method can immediately and effectively detect,isolate and accommodate sensor failures,no mistake and fail reports exist.