Study on Cycle-by-Cycle Variations of Ion Current Integral and Pressure in Spark Ignition Engine

摘要：

The investigation of correlations of ion current integral, cylinder peak pressure and indicated mean effective pressure at different operating conditions were carried out on a spark ignition (SI) engine fueled by compressed natural gas (CNG) with 20％(in volume) Nitrogen enrichment. Then influencing factors of cycle-to-cycle combustion variations (CCV) in SI engine, such as throttle opening and engine speed were discussed. The results show that, at the same operating condition, the CCV of cylinder peak pressure and indicated mean effective pressure are smaller than the variations of ion current integral; the correlations of ion current integral, cylinder peak pressure and indicated mean effective pressure increase with the decrease of CCV ; the CCV of ion current integral, cylinder peak pressure and indicated mean effective pressure decrease with the throttle opening increases or engine speed decreases.

关键词： ion current integral cycle-to-cycle combustion variationse correlation coefficient spark ignition engine

作者: Shizhuo Zheng Xin Zhang Zhiyong Shen

作者单位: School of Mechanical, Electronic and Control Engineering Beijing Jiaotong University Beijing, China

会议类型: 国际会议

会议名称: 2011 International Conference on Electronic & Mechanical Engineering and Information Technology(EMEIT 2011)(2011年机电工程与信息技术国际会议)

会议地点: 哈尔滨

会议语种:英文

页码: 3404-3407

在线出版日期: 2011-08-12（万方平台首次上网日期，不代表论文的发表时间）