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首页> 外文会议>ASME Internal Combustion Engine Division fall technical conference 2012 >ION CURRENT DETECTION DURING COLD STARTING AND IDLING IN DIESEL ENGINES
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ION CURRENT DETECTION DURING COLD STARTING AND IDLING IN DIESEL ENGINES

机译：柴油机冷启动和空转过程中的离子电流检测

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Cold starting of diesel engines is characterized by inherent problems such as long cranking periods and combustion instability leading to an increase in fuel consumption and the emission of high concentrations of hydrocarbons which appear as white smoke. The ion current signal has been considered for the feedback control of both gasoline and diesel engines. However, the ion current signal produced from the combustion of the heterogeneous charge in diesel engines is weaker compared to that produced from the combustion of the homogeneous charge in gasoline engines. This presents a problem in the detection of the ion current signal in diesel engines, particularly during starting and idling operations. This paper investigates and addresses the ion current detection problems pertaining to cold starting and various idling speeds. Also, different approaches have been investigated to improve the signal detection under these conditions.
机译：柴油发动机的冷启动的特征是固有的问题，例如长起动时间和燃烧不稳定性，这会导致燃料消耗的增加以及高浓度碳氢化合物的排放，这些碳氢化合物是白烟。已经考虑将离子电流信号用于汽油和柴油发动机的反馈控制。然而，与汽油发动机中均质电荷燃烧产生的离子电流信号相比，柴油机中异质电荷燃烧产生的离子电流信号更弱。这在柴油发动机中的离子电流信号的检测中存在问题，特别是在起动和空转操作期间。本文研究并解决了与冷启动和各种怠速有关的离子电流检测问题。而且，已经研究了不同的方法来改善在这些条件下的信号检测。

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