| 重型柴油机尿素SCR后处理系统的控制策略研究 |
| |
| 引用本文： | 胡静,赵彦光,陈婷,陈镇,张云龙,帅石金,王建昕.重型柴油机尿素SCR后处理系统的控制策略研究[J].内燃机工程,2011,32(2). |
| |
| 作者姓名： | 胡静 赵彦光 陈婷 陈镇 张云龙 帅石金 王建昕 |
| |
| 作者单位： | 1. 清华大学汽车安全与节能国家重点实验室,北京,100084
2. 杭州银轮科技有限公司,杭州,310000 |
| |
| 基金项目： | 中国博士后科学基金一等资助金 |
| |
| 摘 要： | 针对重型柴油机尿素选择催化还原(SCR)后处理系统的控制策略进行了研究,研究了空速、催化剂温度、催化剂对NOx的转化效率、催化剂的NH3吸附与解吸附等催化荆特性对控制策略的影响,并根据工况提出了高负荷工况和低负荷工况的动态修正.基于上述研究结果对控制策略进行优化,采用基于发动机MAP图和实际工况的稳态和瞬态修正控制策略,使所匹配的柴油机尿素SCR后处理系统达到重型柴油车国-Ⅳ及以上排放标准.
|
| 关 键 词： | 内燃机 重型柴油机 选择催化还原 尿素喷射 控制策略 |
Study of Control Strategy for Urea-SCR After-Treatment System of Heavy Duty Diesel Engine |
| |
| HU Jing,ZHAO Yan-guang,CHEN Ting,CHEN Zhen,ZHANG Yun-long,SHUAI Shi-jin,WANG Jian-xin.Study of Control Strategy for Urea-SCR After-Treatment System of Heavy Duty Diesel Engine[J].Chinese Internal Combustion Engine Engineering,2011,32(2). |
| |
| Authors: | HU Jing ZHAO Yan-guang CHEN Ting CHEN Zhen ZHANG Yun-long SHUAI Shi-jin WANG Jian-xin |
| |
| Affiliation: | HU Jing1,ZHAO Yan-guang1,CHEN Ting2,CHEN Zhen2,ZHANG Yun-long1,SHUAI Shi-jin1,WANG Jian-xin1(1.State Key Laboratory of Automotive Safety and Energy,Tsinghua University,Beijing 100084,China,2.Hangzhou Yinlun Technology & Engineering Co.,Ltd.,Hangzhou 310000,China) |
| |
| Abstract: | Aimed at urea selective catalytic reduction(SCR) after-treatment system,the urea dosing control strategy was studied.Influences of the catalyst characteristic parameters,such as space velocity,catalyst temperature,NOx conversion efficiency,NH3 absorption and desorption characteristics etc.on the control strategy were explored deeply and a transient correction method in high and low load conditions was presented.Obtained results were used to optimize the urea dosing control strategy.The control strategy base... |
| |
| Keywords: | IC engine heavy duty diesel engine selective catalytic reduction(SCR) urea dosing control strategy |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
