徐劲松,魏亮,吴鸿兵,陈丛金,陈贵升.高压共轨柴油机喷油控制策略研究[J].农业机械学报,2016,47(4):294-300.
Xu Jinsong,Wei Liang,Wu Hongbing,Chen Congjin,Chen Guisheng.Injection Control Strategy of High Pressure Common Rail Diesel Engine[J].Transactions of the Chinese Society for Agricultural Machinery,2016,47(4):294-300.
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高压共轨柴油机喷油控制策略研究   [下载全文]
Injection Control Strategy of High Pressure Common Rail Diesel Engine   [Download Pdf][in English]
投稿时间:2015-10-06  
DOI:10.6041/j.issn.1000-1298.2016.04.039
中文关键词:  柴油机  高压共轨  喷油控制策略  油量修正
基金项目:国家自然科学基金项目(61263026)、云南省教育厅重点基金项目(2014Z025)和昆工校人培基金项目(KKZ3201402021)
作者单位
徐劲松 昆明理工大学 
魏亮 昆明理工大学 
吴鸿兵 北汽福田汽车股份有限公司 
陈丛金 昆明理工大学 
陈贵升 昆明理工大学 
中文摘要:通过对高压共轨柴油机喷油控制的需求分析,发现在转速突变时进气系统具有明显的迟滞性,这种迟滞性表现为进气增量跟不上喷油增量,所设计的转速变化主喷油量修正算法能够重新修正原喷油量,以获得合理的空燃比,改善燃烧过程。多次喷射会造成轨压波动,经过多次喷射轨压波动油量修正算法对喷油量脉宽进行预修正,可以提高喷油执行精度。利用ETAS公司的ASCET建模软件工具和自主开发的ECU电路板,在YN33CR型高压共轨柴油机上进行了台架试验。试验结果表明:该喷油控制策略符合预期效果,能够有效改善喷油控制。
Xu Jinsong  Wei Liang  Wu Hongbing  Chen Congjin  Chen Guisheng
Kunming University of Science and Technology,Kunming University of Science and Technology,Beiqi Foton Motor Company Limited,Kunming University of Science and Technology and Kunming University of Science and Technology
Key Words:diesel engine  high pressure common rail  injection control strategy  injection quantity correction
Abstract:Through analyzing requirements of injection control of high pressure common rail diesel engine, the air intake system had obvious hysteresis in the changing speed. And this kind of hysteretic performance was represented that the increment of the intake-air could not obviously keep pace with the increment of the injection. Thus, the designed correction algorithm of main injection quantity for changing speed could newly modify the original main injection fuel quantity, and obtain the reasonable air-fuel ratio and optimize the combustion process. For the fluctuation of common rail pressure was caused by the multiple injection, the fuel correction algorithm of multiple injection for common rail pressure fluctuation could pre-rectify the fuel injection pulse width and improve the injection accuracy, which were realized by using the ASCET modeling software tools of ETAS company and the independently developed ECU circuit board. After calibration experiment of the engine on YN33CR high pressure common rail diesel engine, such as starting and idling condition test, main injection quantity correction test of changing speed, fuel correction test of multiple injection for rail pressure fluctuation, constant torque and increasing speed mode test, constant speed and increasing torque mode test, the results showed that the fuel injection control strategies achieved the expected results and it can effectively improve the injection control.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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