Fault diagnosis of internal combustion engine valve clearance bayes discriminant method
Changzheng Huang · Journal of Shaoguan University · 2010
Bayes discriminant analysis model for fault diagnosis of the internal combustion engine valve is built based on the internal combustion engine valve vibration signal by EMD method,the results abtained the correlation dimension of Intrinsic mode function as the discriminating factors.By bayes discriminant analysis model of internal combustion engine valve fault diagnosis to calculate the Bayes discriminant function value of the discriminant sample,the largest value corresponds to the type as the sample type of valve clearance.and further evaluation criterion to test the superiority of the discriminant model.The research shows that the misjudgement rate of model is slightly low.It's effective and quantificationally analysis method to fault diagnosis of engine valve clearance.