Pattern Recognization on Working Condition in Diagnosis of Engine
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摘要: 利用多項式回歸的方法獲得不同工況下發動機速度隨時間變化的數學模型.基于測試工況定義時的模糊性,故在測試中采用模糊模式識別的方法,確定實際的測試工況,以用于測試參數的處理Abstract: In diagnosis of engine, working conditon is the basis of data analysis, condihon evaluahon and fault diagnosis. Rotating speed signal shows the working condihon.Speed varies with different working condihon. The speed-time model can be obtained by polynomial regression under different working condihon. On the basis of fuzzy pattern recognizaton method, prachcal working condihon can be determined.
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Key words:
- engine /
- fault diagnosis /
- pattern recognization
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