用光纤信号对火花点火发动机爆震燃烧的测试研究  

Spark Ignition Engine Knock Detection Using in Cylinder Fiber Optic Probes

作　　者：张建华[1] 高青[1] 孙志军[1] 孙济美[1] 孙志宏 

机构地区：[1]吉林工业大学 [2]阿根国家实验室

出　　处：《内燃机学报》1997年第4期435-440,共6页Transactions of Csice

摘　　要：利用光纤传感器对火花点火发动机爆震燃烧进行探测研究，并与以往常规压力传感器的测量结果比较，探索光纤传感技术在燃烧及其爆震测控中应用的可行性。研究结果表明，对于爆震始点的判断，光纤传感器获得明显的提前，得以实现爆震预测和临界爆震状态识别，而且灵敏度和准确度均较高。它不但可实现爆震燃烧的探测，而且有利于实现其它多项燃烧特征及其多变性的测试。光纤传感器可成为电控技术中燃烧过程测控信号的重要手段。This paper presents results of spark ignition engine knock detection using in cylinder fiber optic probes. Comparing with normal pressure probes the fiber optic probes are feasible to measure the engine combustion and detect the knock. This optical probe appears to offer a technique for detecting when knock is on the threshold of occurring but before it actually does, and it has high sensitivity and accuracy. It can not only detect the knock of the combustion but also measure many characteristics and variability of the combustion, and will become an important way of getting the control signals in the electron control of engine combustion.

关 键 词：光纤传感器 火花点火发动机 爆震 燃烧 电控技术 

分 类 号：TK401[动力工程及工程热物理—动力机械及工程]