吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (2): 483-489.doi: 10.13229/j.cnki.jdxbgxb201702019

• • 上一篇    下一篇

怠速转速和节气门开度对停机特性及直接起动模式实现的影响

孙文旭, 洪伟, 解方喜, 苏岩, 姜北平, 李翔宇   

  1. 吉林大学 汽车仿真与控制国家重点试验室,长春 130022
  • 收稿日期:2015-12-12 出版日期:2017-03-20 发布日期:2017-03-20
  • 通讯作者: 解方喜(1982-),男,讲师,博士.研究方向:内燃机工作过程优化与控制.E-mail:xiefx2011@jlu.edu.cn
  • 作者简介:孙文旭(1983-),男,博士研究生.研究方向:内燃机工作过程优化与控制.E-mail:sunwenxu2009@126.com
  • 基金资助:
    国家自然科学基金项目(51206059).

Effects of idle speed and throttle opening on engine shutdown characteristics and realization of direct start mode

SUN Wen-xu, HONG Wei, XIE Fang-xi, SU Yan, JIANG Bei-ping, LI Xiang-yu   

  1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China
  • Received:2015-12-12 Online:2017-03-20 Published:2017-03-20

PDF (PC)

259

摘要： 针对一台4G15 缸内直喷汽油机试验研究了停机前怠速转速及停机过程节气开度对发动机停机特性及直接起动模式实现的影响。研究结果表明:随着停机前怠速转速的升高,停机过程曲轴平均转过的圈数显著增加。然而,在节气门开度较小的条件下,单纯提高停机前怠速转速对缸内废气的清除效果有限,且膨胀缸活塞最终停止相位具有极大的随机性,直接起动模式均难以实现。随着停机过程节气门开度的增加,曲轴平均转过的圈数增大,膨胀缸活塞最终停止的相位变化范围减小,在气缸中间位置的停止概率显著升高。同时,增大节气门开度也是一种极为有效清除缸内残余废气的技术措施,可使直接起动模式首循环着火和直起成功的概率显著升高。

关键词: 动力机械工程, 缸内直喷汽油机, 怠速转速, 节气门开度, 转动特性, 直接起动模式实现

Abstract: The effects of idle speed and throttle opening on the engine shutdown characteristics and the realization of direct start mode were studied on a 4G15 gasoline direct injection engine. Results show that the average number of rotations during the shutdown process significantly increases with the idle speed. However, when the throttle opening is small, simply raising the idle speed before shutdown, the effect for cylinder exhaust scavenging is limited, and the final stop phase of the expansion cylinder piston has great randomness, which was difficult to the realization of direct start mode. With the increase in the throttle opening, the number of rotations of the crankshaft increases, the final stop phase range of the piston in the expansion cylinder decreases, and the stop probability in the middle position of the cylinder significantly decreases. At the same time, increasing the throttle opening is also a very effective method to remove the residual gas inside the cylinder, which can significantly increase the success probability of the first cycle ignition and the direct starting.

Key words: power machinery and engineering, direct injection gasoline engine, idle speed, throttle opening, engine shutdown characteristics, realization of direct start mode

中图分类号: 

  • TK411
[1] Zhao F, Harrington D L, Lai M. Automotive gasoline direct-injection engines[J]. Prog Energy Comb Sci,1999, 25: 437-562.
[2] 王建昕,王志.高效清洁车用汽油机燃烧的研究进展[J].汽车安全与节能学报, 2010, 1(3): 167-178.
Wang Jian-xin, Wang Zhi. Research progress of high efficient and clean combustion of automotive gasoline engines[J]. J Automotive Safety and Energy, 2010, 1(3): 167-178.
[3] Kulzer A, Zülch C, Mössner D, et al. Einige aspekte bezüglich gemischbildung und verbrennung im rahmen des direktstarts von ottomotoren mit benzin-direkteinspritzung[J].VDI-VW-Gemeinschaftstagung,2003,1808:29-40.
[4] Moritaka M, Koji K, Junya T. Fuel consumption improvement of vehicles by idling stop[C]∥SAE Paper, 2004-01-1896.
[5] Bishop J, Nedungali A, Ostrowski G,et al. An engine start/stop system for improved fuel economy[C]∥SAE Paper, 2007-01-1777.
[6] Fonseca N, Casanova J, Valdes M. Influence of the stop/start system on CO 2 emissions of a diesel vehicle in urban traffic[J]. Transpn Res Part D: Transp Environ, 2011,16(2): 194-200.
[7] Yu S, Dong G, Li L. Transient characteristics of emissions during engine start/stop operation employing a conventional gasoline engine for HEV application[J]. Int J Automot Technol, 2008,9: 543-549.
[8] 苏岩,洪伟,韩立伟,等. GDI 发动机怠速停止技术无起动机起动的试验研究[J]. 内燃机学报,2011, 29(6): 527-533.
Su Yan, Hong Wei, Han Li-wei,et al. Experimental study of idling stop-start without motor on a gaso-line direct injection engine[J]. Transactions of CSICE, 2011, 29(6): 527-533.
[9] 孙文旭,洪伟,解方喜,等. 活塞初始位置对GDI汽油机直接起动模式的影响[J]. 吉林大学学报:工学版,2016,46(5):1471-1477.
Sun Wen-xu,Hong Wei,Xie Fang-xi,et al. Effect of initial position of piston on direct-start mode without starter[J]. Journal of Jilin University (Engineering and Technology Edition),2016,46(5):1471-1477.
[10] Kramer U, Badke K, Wytrykus F, et al. Experimental determination of the oxygen concentration in the start cylinder of a direct started engine[C]∥SAE Paper, 2004-01-0544.
[11] Zuelch C, Kulzer A, Chiodi M, et al. The directstart: investigation of mixture formation by means of optical measurements and 3D-CFD-simulation[C]∥SAE Paper, 2005-01-3686.
[12] Shi Lei, Xiao Mao-yu, Deng Kang-yao. Study on the combustion and hydrocarbon emission characteristics of direct injection spark-ignition engines during the direct-start process[J]. Energy Conversion and Management, 2015, 103: 191-199.
[13] 肖茂宇,石磊,邓康耀. 直接起动过程缸内直喷汽油蒸发的影响规律研究[J]. 内燃机工程, 2016 (2): 12-18.
Xiao Mao-yu, Shi Lei, Deng Kang-yao. Investigation of effect on direct-injected gasoline spray evaporation characteristic subjected to direct-start process[J]. Chinese Internal Combustion Engine Engineering, 2016(2): 12-18.
[14] Xie Fang-xi, Li Xiao-ping, Wang Xin-chao, et al. Research on using EGR and ignition timing to control load of a spark-ignition engine fueled with methanol[J]. Applied Thermal Engineering, 2013,50(1):1084-1091.
[1] 董伟,宋佰达,邱立涛,孙昊天,孙平,蒲超杰. 直喷汽油机暖机过程中两次喷射比例对燃烧和排放的影响[J]. 吉林大学学报(工学版), 2018, 48(6): 1755-1761.
[2] 林学东, 江涛, 许涛, 李德刚, 郭亮. 高压共轨柴油机起动工况高压泵控制策略[J]. 吉林大学学报(工学版), 2018, 48(5): 1436-1443.
[3] 李志军, 汪昊, 何丽, 曹丽娟, 张玉池, 赵新顺. 催化型微粒捕集器碳烟分布及其影响因素[J]. 吉林大学学报(工学版), 2018, 48(5): 1466-1474.
[4] 秦静, 徐鹤, 裴毅强, 左子农, 卢莉莉. 初始温度和初始压力对甲烷-甲醇裂解气预混层流燃烧特性的影响[J]. 吉林大学学报(工学版), 2018, 48(5): 1475-1482.
[5] 宫洵, 蒋冰晶, 胡云峰, 曲婷, 陈虹. 柴油机主-从双微元Urea-SCR系统非线性状态观测器设计与分析[J]. 吉林大学学报(工学版), 2018, 48(4): 1055-1062.
[6] 钟兵, 洪伟, 金兆辉, 苏岩, 解方喜, 张富伟. 进气门早关液压可变气门机构运动特性[J]. 吉林大学学报(工学版), 2018, 48(3): 727-734.
[7] 席雷, 徐亮, 高建民, 赵振, 王明森. 厚壁矩形带肋通道内蒸汽流动及传热特性[J]. 吉林大学学报(工学版), 2018, 48(3): 752-759.
[8] 李龙, 张幽彤, 左正兴. 变负载控制在自由活塞内燃发电机的缸压控制中的应用[J]. 吉林大学学报(工学版), 2018, 48(2): 473-479.
[9] 田径, 刘忠长, 刘金山, 董春晓, 钟铭, 杜文畅. 基于燃烧边界参数响应曲面设计的柴油机性能优化[J]. 吉林大学学报(工学版), 2018, 48(1): 159-165.
[10] 卫海桥, 裴自刚, 冯登全, 潘家营, 潘明章. 压电喷油器多次喷射对GDI汽油机颗粒物排放的影响[J]. 吉林大学学报(工学版), 2018, 48(1): 166-173.
[11] 胡云峰, 王长勇, 于树友, 孙鹏远, 陈虹. 缸内直喷汽油机共轨系统结构参数优化[J]. 吉林大学学报(工学版), 2018, 48(1): 236-244.
[12] 李志军, 何丽, 姜瑞, 申博玺, 孔祥金, 刘世宇. 柴油机微粒捕集器灰分分布对其压降的影响评价[J]. 吉林大学学报(工学版), 2017, 47(6): 1760-1766.
[13] 郭亮, 杨文昭, 王云开, 孙万臣, 程鹏, 李国良. 废气再循环对丁醇/柴油混合燃料发动机的影响[J]. 吉林大学学报(工学版), 2017, 47(6): 1767-1774.
[14] 虞浏, 刘忠长, 刘江唯, 杜宏飞, 许允. 直喷汽油机喷雾粒径特性[J]. 吉林大学学报(工学版), 2017, 47(5): 1482-1488.
[15] 刘忠长, 腾鹏坤, 田径, 许允, 亓升林, 于凯波. 二级增压柴油机旁通阀调节特性[J]. 吉林大学学报(工学版), 2017, 47(3): 796-803.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
版权所有 © 《吉林大学学报(工学版)》编辑部
地址：长春市人民大街5988号　电话：+86-431-85095297　传真：+86-431-85094074　E-mail: xbgxb@jlu.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发