Effects of Ignition and Injection Timing on Cold Start Behavior of Methanol Engine

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Effects of Ignition and Injection Timing on Cold Start Behavior of Methanol Engine

更新时间：2025-07-09

- Effects of Ignition and Injection Timing on Cold Start Behavior of Methanol Engine
- Vol. 42, Issue 11, Pages: 1367-1371(2008)
- 作者机构：
  
  吉林大学汽车工程学院,长春,130022
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK464
- Online First：10 November 2008，
  
  Published：2008
- 稿件说明：
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Effects of Ignition and Injection Timing on Cold Start Behavior of Methanol Engine[J]. 2008, 42(11): 1367-1371.
DOI：

Effects of Ignition and Injection Timing on Cold Start Behavior of Methanol Engine[J]. 2008, 42(11): 1367-1371. DOI：

摘要

在一台125 mL的单缸电控喷射点燃式甲醇发动机上进行了冷起动瞬态工况着火特性的试验研究. 基于循环控制研究了点火正时和喷射正时对甲醇发动机冷起动的着火特性和HC排放的影响. 试验结果表明:点火正时和喷射正时对甲醇发动机的冷起动着火特性和HC排放均有显著影响; 推迟点火从-20°(上止点前

下同)到10°

发动机的后燃逐渐增多

气缸压力逐渐降低

直至最后不能起动

甲醇发动机点火正时优化为-20°; 喷射正时比点火正时对冷起动着火特性影响更显著

合理控制起动喷射正时

可保证混合气全部在受控的着火循环时进入气缸

实现“即喷即着”的理想着火

并提高发动机的着火可靠性; 曲轴转角为471°(上止点后)喷射甲醇比-35°喷射甲醇时的气缸最高燃烧压力提高了140%

HC排放降低了65%.

Abstract

The firing behavior of a 125 mL single cylinder methanol engine with electronically controlled injection spark-ignition at cold start was investigated experimentally. The effects of the injection timing and the ignition timing of methanol on the firing behavior and HC emission of the engine were studied by means of the cycle-by-cycle control technique. The results show that retarding the ignition timing from -20°(before top dead center)to 10°

results in more after-burning and the decrease in cylinder pressure gradually

and finally the engine fails to start.The optimal methanol engine ignition timing is -20°. If the fuel injection timing is controlled reasonably during the engine cold start

it is possible to ensure the most fuel-air mixture to enter into the cylinder on time

leading to “next cycle combustion after fuel injection” and high cold start reliability. The maximum cylinder pressure increases by 140% and HC emission decreases by 65% when the methanol injection timing changes from -35° to 471°(after top dead center

crank angle).

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references

LAURIKKO J. Emission performance of current TWC vehicles at low ambient temperature over and ECE test cycles: global emission technique and analysis, SAE paper 1994,940933 [R]. Detroit,Michigan, USA:SAE,1994.

SANTOSO H,CHANG W K. Mixture preparation and hydrocarbon emissions behaviors in the first cycle of SI engine cranking [J].SAE Transactions,2002,111(4):1644-1654.

LANG K R, CHENG W K. Effect of fuel properties on first cycle fuel delivery in a SI engine [J].SAE Transactions,2004,113(4):2095-2105.

FULCHER S K, GUJDECZKO B F, FELTON P G,et al.The effects of fuel atomization,vaporization,and mixing on the cold-start UHC emission of a contemporary S I engine with intake manifold injection [J].SAE Transactions,1995,104(3):2345-2365.

GOREY W, STEVE W.PLIF measurements of fuel distribution in a PFI engine under cold start condition [J].SAE Transactions,2002,112(4):2548-2567.

程勇, 王建昕,庄人隽,等.电控汽油机起动及暖机工况燃烧状况的分析统计 [J].内燃机学报,2002,20(1):62-65.

CHENG Yong,WANG Jianxin,ZHUANG Renjun,et al.Analysis of indicator diagram under cold-start and warm-up conditions of SI gasoline engine [J].Transactions of CSICE,2002,20(1):62-65.

李理光,王振琐,邓宝清,等.基于可控循环着火的电控汽油机冷起动性能研究 [J].汽车工程,2004,26(4):417-422.

LI Liguang,WANG Zhensuo,DENG Baoqing,et al. A study on ignition and HC emission of a gasoline EFI engine during cold-start [J].Automotive Engineering,2004,26(4):417-422.

王振锁,李理光,宫长明,等.基于循环控制的LPG电喷发动机冷起动初探 [J].内燃机学报,2004,22(4):337-343.

WANG Zhensuo,LI Liguang,GONG Changming,et al. Investigation of cold-start based on cycle-by-cycle control strategy in a LPG EFI engine [J].Transactions of CSICE,2004,22(4):337-343.

HU Tiegang, WEI Yanjü, LIU Shenghua, et al. Improvement of spark-ignition(SI)engine combustion and emission during cold-start,fueled with methanol/gasoline blends [J].Energy Fuels,2007,21(1):171-175.

王舒.电控喷射点燃式甲醇发动机起动性能研究 [D].长春:吉林大学汽车工程学院,2007.

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