董天普,张付军,刘波澜,柴智刚,刘盼.面向控制的柴油机进排气氧气质量分数估计方法研究[J].农业机械学报,2016,47(3):354-360.
Dong Tianpu,Zhang Fujun,Liu Bolan,Chai Zhigang,Liu Pan.Control Oriented Research on Method of Intake and Exhaust Oxygen Mass Fraction Estimation for Diesel Engine[J].Transactions of the Chinese Society for Agricultural Machinery,2016,47(3):354-360.
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面向控制的柴油机进排气氧气质量分数估计方法研究   [下载全文]
Control Oriented Research on Method of Intake and Exhaust Oxygen Mass Fraction Estimation for Diesel Engine   [Download Pdf][in English]
投稿时间:2015-08-31  
DOI:10.6041/j.issn.1000-1298.2016.03.050
中文关键词:  涡轮增压柴油机  高压回路EGR  进排气氧气质量分数  龙贝格观测器  稳定性分析
基金项目:国防科工局基础产品创新计划项目(DEDP1004)和北京理工大学校基金项目(3030012211428)
作者单位
董天普 北京理工大学 
张付军 北京理工大学 
刘波澜 北京理工大学 
柴智刚 北京理工大学 
刘盼 北京理工大学 
中文摘要:在构建高压回路EGR涡轮增压柴油机气路系统动态模型基础上,设计了柴油机进排气氧气质量分数的龙贝格观测器,实现对柴油机进排气氧气质量分数的估计;利用李雅普诺夫稳定性原理对设计的观测器进行了稳定性分析,分析结果显示,设计的进排气氧气质量分数观测器满足稳定性要求,可以用于进排气氧气质量分数的估计;由于进气歧管不宜安装宽裕氧传感器(UEGO),进气氧气质量分数难以测到,本文推导出一种进气氧气质量分数的计算方法,并对推导出的计算方法进行了仿真对比验证,结果表明,该计算方法能够对进气氧气质量分数进行比较精确的计算估计;最后,对设计的进排气氧气质量分数观测器进行了仿真和试验验证,结果表明,设计的观测器可〖JP3〗以对柴油机的进排气氧气质量分数进行准确估计,为基于进排气氧气质量分数的柴油机气路控制器设计奠定了基础。
Dong Tianpu  Zhang Fujun  Liu Bolan  Chai Zhigang  Liu Pan
Beijing Institute of Technology,Beijing Institute of Technology,Beijing Institute of Technology,Beijing Institute of Technology and Beijing Institute of Technology
Key Words:turbocharged diesel engine  high pressure EGR  intake and exhaust oxygen mass fraction  Luenberger observer  stability analysis
Abstract:An innovative oxygen mass fraction estimation method for turbocharged diesel engine was described. Based on the dynamic model of turbocharged diesel engine with high pressure exhaust gas recirculation (EGR), the Luenberger observer of the intake and exhaust oxygen mass fraction was developed. By using the data acquired from the standard sensors equipped on the engine, the intake and exhaust oxygen mass fraction can be estimated by using the Luenberger observer. The convergence stability of the observer was proved through a Lyapunov analysis, the results show that the observer can meet the stability requirements. It can be used for estimating the intake and exhaust oxygen mass fraction. For various reasons, it is not suitable to install universal exhaust gas oxygen (UEGO) sensor on the intake manifold; the intake oxygen mass fraction needs to be obtained by other means. The calculated algorithm of the intake oxygen mass fraction was proposed and the method was verified by using the GT Power simulation data. The maximum error was less than 1.3%, the results show that the calculation method was able to accurately calculate the intake oxygen mass fraction. Finally, the test bench of the YC4E170-31 diesel engine was built. The exhaust oxygen fraction can be calculated by using the UEGO sensor which was installed at the exhaust manifold. The observer of the intake and exhaust oxygen mass fraction was verified against the experimental data and simulation data, the results show that the observer can accurately estimate the intake and exhaust oxygen mass fraction, and the estimation error was in a reasonable range, which laid a foundation for air path controller design based on intake and exhaust oxygen mass fraction.

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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