吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (增刊1): 41-46.

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Experiment on influence factors and variety rules of spark plug ion-current signals amplitude

SUN Yue-guo1, YUAN Zhao-cheng1, LIU Chong1,2, LI Li-ying3   

  1. 1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China;
    2. Weichai Power Co, LTD, Weifang 261001, China;
    3. School of Computer Science, Jilin Normal University, Siping 136000, China
  • Received:2010-04-27 Online:2011-09-01 Published:2011-09-01

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Abstract:

By optimizing the detecting circuit of spark plug ion-current,the high frequency and high voltage interference generated by the high ignition was successfully controlled and the stable ion-current signals within the range of 0.3～3.2 V were obtained.In the testing process,three kinds of spark plugs were used and their ion-current signals at different engine operating condition(different engine speeds and loads) were gathered.By comparing these three different signals,it is obvious that the ion-current amplitude is influenced by spark plug's parameters,and also generally is intense with the increase of engine speed and load.And finally,the influences of spark plug parameters on ion-current signal amplitude were analyzed.

Key words: vehicle engineering, ion-current signals amplitude, spark-plug’s parameters, engine speed, engine load

CLC Number: 

  • U41


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