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汽车安全与节能学报

汽车安全与节能学报 ›› 2015, Vol. 6 ›› Issue (01): 17-29.DOI: 10.3969/j.issn.1674-8484.2015.01.002

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增压汽油机中早燃和超级爆震的研究进展

王志(1972 － )，男( 汉)，湖北，副研究员。E-mail: wangzhi@tsinghua.edu.cn   

  1. 清华大学 汽车安全与节能国家重点实验室，北京 100084，中国
  • 收稿日期:2015-01-28 出版日期:2015-03-25 发布日期:2015-04-02
  • 作者简介:王志 副研究员 现为清华大学汽车工程系副研究员、博士生导师。动 力工程及工程热物理专业，博士，清华大学。至今 发表SCI / EI 论文50多篇， 授权专利8 项。曾获 “中 国内燃机学会史绍熙人才奖”，入选“教育部新世纪 优秀人才”。主要研究方向：内燃机燃烧、爆震控制 与新型燃料。
  • 基金资助:

    国家“八六三”高技术研究发展计划(2012AA111715 ；2012AA111701)

Research progress of pre-ignition and super-knock in boost gasoline engine

WANG Zhi, LONG Yan, WANG Jianxin   

  1. State Key Lab of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
  • Received:2015-01-28 Online:2015-03-25 Published:2015-04-02
  • About author:Associate Prof. WANG Zhi He is an associate professor in the Department of Automotive Engineering of Tsinghua University. He received his PHD degree in Power Engineering & Engineering Thermophysics, Tsinghua University. He has published 8 patents and more than 50 SCI/EI papers. He has been awarded SHI Shaoxi Talent Award of Chinese Society for Internal Combustion Engine and New Century Excellent Talents of Ministry of Education. His research field covers combustion, knock control and new fuels in internal combustion engine.

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摘要：

增压直喷是实现汽油机节能的有效手段，而超级爆震是进一步提高功率密度的主要障碍。超
级爆震和早燃是两种不同的燃烧现象。超级爆震是高功率密度内燃机中的一种强烈的敲缸现象，常
发生在低速、大负荷工况，具有随机性、偶发性和破坏性。早燃是火花点火内燃机中点火前出现着
火的异常燃烧现象。早燃不一定导致超级爆震，但超级爆震前一定发生了早燃。抑制超级爆震的一
条重要途径是杜绝早燃。早燃的诱发源主要有机油液滴和颗粒物。燃油和机油的组分与物理化学性
质对超级爆震发生频次也有着重要影响。

关键词: 增压汽油机, 超级爆震, 早燃, 机油液滴, 颗粒物

Abstract:

Boost and direct injection are effective measurements for energy saving in gasoline engines, while
super-knock has become the main obstacle for further improving power density. Pre-ignition and superknock
are two different combustion phenomena. Super-knock is a kind of severe engine knock in high power
density internal combustion engine, which generally occurs at low-speed, high-load operating conditions
with stochastic, sporadic and destructive. Pre-ignition is a abnormal combustion phenomenon in spark
ignition engine that ignition occurs before the spark timing. Pre-ignition itself does not always lead to superknock,
however, pre-ignition accures before super-knock. To eliminate pre-ignition is an effective approach
to suppress super-knock. The origins of pre-ignition include oil droplet and particle. The composition and
physicochemical properties of fuel and oil affect seriously the frequency of super-knock.

Key words: boost gasoline engine, super-knock, pre-ignition, oil droplet, deposit