SYSTEM AND METHOD FOR DETECTING ENGINE EVENTS WITH AN ACOUSTIC SENSOR

A system for detecting engine events includes an engine assembly, and an acoustic emission sensor mounted on the engine assembly. A controller has a processor configured to execute stored instructions and is programmed to convert the signal into one or more frequency components, filter the signal with a band pass filter and determine a power value of each of the one or more frequency components within the range of frequencies of the band pass filter. The controller then compares the power value of each of the one or more frequency components to a reference value associated with acoustic emissions in the engine assembly during a baseline engine cycle. The controller adjusts at least one operating parameter of the engine assembly if the power value differs from the reference value by at least a predetermined amount. A corresponding method of controlling an engine assembly is disclosed. 种用于检测发动机事件的系统包括发动机组件与安装在发动机组件上的声发射传感器。控制器具有配置成执行存储的指令的处理器，并且被编程成将信号转换成个或多个频率分量，采用带通滤波器过滤信号，并且确定在带通滤波器的频率范围内的个或多个频率分量中的每个频率分量的功率