Study on the engine test and fault diagnosis system based on the information fusion technique

摘要

It analyzed the importance of the four parameters of cylinder pressure, speed, starting rotation speed, starting current, cylinder body temperature for the engine fault diagnosis. It designed the testing and fault diagnosis scheme using AT89c51. According to the testing data and the information fusion evidence reasoning theory, it presented the fault diagnosis method for engine cold start and formed a integration and fusion of intelligent test and fault diagnosis system.