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柴油機SCR開環(huán)控制系統(tǒng)尿素計量脈譜標(biāo)定方法
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國家高技術(shù)研究發(fā)展計劃(863計劃)資助項目(2007AA06Z341)


Urea Dosing Map Calibration Method of Open Loop Control System of Diesel Engine SCR
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    摘要:

    在設(shè)計某型號國Ⅳ柴油機選擇性催化還原系統(tǒng)SCR時，為了快速標(biāo)定SCR控制器，采用空間填充試驗設(shè)計得到130個優(yōu)化工況點，使試驗規(guī)模減小了2/3。基于排放特性試驗數(shù)據(jù)庫和催化器特性試驗數(shù)據(jù)庫，利用神經(jīng)網(wǎng)絡(luò)開發(fā)了目標(biāo)柴油機排放模型和催化器模型?；诖呋髂Ｐ停ㄟ^多目標(biāo)優(yōu)化計算得到尿素計量脈譜，ESC循環(huán)試驗證明所標(biāo)定的脈譜精度滿足控制要求。

    Abstract:

    In order to quickly calibrate SCR controller, space-falling experiment design was applied to get 130 optimization operation points while developing SCR system for a type of diesel engine, which reduced the experimental workload for two-thirds. The target diesel engine emission model and SCR catalyst model were developed by using neural network based on diesel emission characteristic experimental database and catalyst characteristic experimental database. Multi-objective optimization arithmetic was applied to gain urea dosing map based on SCR catalyst model. ESC (Europe steady cycle) experiment validated that the precision of urea dosing map satisfied the requirement of SCR control.

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劉傳寶,顏伏伍,朱清山,杜常清,胡杰.柴油機SCR開環(huán)控制系統(tǒng)尿素計量脈譜標(biāo)定方法[J].農(nóng)業(yè)機械學(xué)報,2012,43(5):16-21，83. Liu Chuanbao, Yan Fuwu, Zhu Qingshan, Du Changqing, Hu Jie. Urea Dosing Map Calibration Method of Open Loop Control System of Diesel Engine SCR[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(5):16-21，83.

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  • 在線發(fā)布日期: 2012-06-07
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