Internal Combustion Engine Fault Identification Based on FBG Vibration Sensor and Support Vector Machines Algorithm

Table 5

Identification results.

Method	Identification accuracy
	Fault; Type	Number of; samples	Correct identification number	Accuracy (%)	Average accuracy (%)
υ-SVC	I	18	18	100.0	96.3
	II	18	18	100.0
	III	18	17	94.4
	IV	18	18	100.0
	V	18	17	94.4
	VI	18	18	100.0
	VII	18	17	94.4
	VIII	18	17	94.4
	IX	18	16	88.9
SOM neural network	I	18	17	94.4	88.9
	II	18	17	94.4
	III	18	16	88.9
	IV	18	17	94.4
	V	18	17	94.4
	VI	18	16	88.9
	VII	18	16	88.9
	VIII	18	16	88.9
	IX	18	15	83.3