| 发动机多缸随机失火诊断算法研究 |
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| 引用本文： | 王银辉,黄开胜,林志华,王东亮. 发动机多缸随机失火诊断算法研究[J]. 内燃机工程, 2012, 0(1): 18-21,26 |
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| 作者姓名： | 王银辉 黄开胜 林志华 王东亮 |
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| 作者单位： | 清华大学汽车安全与节能国家重点实验室 |
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| 基金项目： | 国家“八六三”高技术研究发展计划项目(2007AA06Z342) |
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| 摘 要： | 失火诊断是发动机在线故障诊断系统的重要内容,基于曲轴转速波动进行失火诊断是目前的常用方法。针对发动机多缸随机失火,在奇瑞477F汽油机上进行试验研究,提出了采用时域滑动平均方法修正的失火诊断算法。试验证明,该算法不需要进行断油自学习修正和供油自学习修正即可准确检测多缸随机失火。
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| 关 键 词： | 内燃机 发动机 多缸随机失火 失火诊断 |
Study of Engine Multi-Cylinder Random Misfire Detection |
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| WANG Yin-hui,HUANG Kai-sheng,LIN Zhi-hua,WANG Dong-liang. Study of Engine Multi-Cylinder Random Misfire Detection[J]. Chinese Internal Combustion Engine Engineering, 2012, 0(1): 18-21,26 |
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| Authors: | WANG Yin-hui HUANG Kai-sheng LIN Zhi-hua WANG Dong-liang |
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| Affiliation: | (National Key Laboratory of Automotive Safety and Energy,Tsinghua University,Beijing 100084,China) |
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| Abstract: | It is very important to diagnose misfire for on-board engine diagnosis system and the common used method is the misfire detection based on crankshaft speed fluctuation.The multi-cylinder random misfire recognizing method in model Chery 447F engine was studied,and the engine misfire detection method of time domain moving average modification was presented.Experiments verify that the method can recognize multi-cylinder random misfires accurately,not needing fuel-cut self-learning and fuel-on self-learning modifications. |
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| Keywords: | IC engine engine multi-cylinder random misfire misfire diagnosis |
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