上海交通大学学报(英文版) ›› 2017, Vol. 22 ›› Issue (5): 577-588.doi: 10.1007/s12204-017-1866-9
WANG Tiantian1 (王天田), LIN Feng1* (林峰), HU Jie1 (胡杰),KE Yuqiang2 (柯于强), ZHANG Yueqiu3 (张岳秋)
出版日期:
2017-09-30
发布日期:
2017-09-30
通讯作者:
LIN Feng (林峰)
E-mail:605837388@qq.com.cn
WANG Tiantian1 (王天田), LIN Feng1* (林峰), HU Jie1 (胡杰),KE Yuqiang2 (柯于强), ZHANG Yueqiu3 (张岳秋)
Online:
2017-09-30
Published:
2017-09-30
Contact:
LIN Feng (林峰)
E-mail:605837388@qq.com.cn
摘要: An AdBlue dosing control strategy of the selective catalytic reduction (SCR) system is developed for a heavy-duty diesel (HDD) engine. The strategy includes a raw emission prediction model, an ammonia (NH3) coverage prediction model, a transient heat hysteresis correction algorithm, an NH3 leakage control model for transient operation conditions, and a feedback controller (FBC). FBC has been developed by using mathematical manipulation to change output signal of sensor based on cross-sensitivity of nitrogen oxide (NOx) sensor to NH3. The quantification of control parameters is based on experiments and Nyquist stability criterion. FBC is enabled in most test conditions to satisfy the stability requirements. NOx conversion (DeNOx) efficiency of SCR system is 82.4% in European steady-state cycle (ESC) test and 80.3% in European transient cycle (ETC) test, while the leakage of NH3 is under 10?5 volume fraction in average.
中图分类号:
WANG Tiantian1 (王天田), LIN Feng1* (林峰), HU Jie1 (胡杰),KE Yuqiang2 (柯于强), ZHANG Yue. Control Strategy Research of a Selective Catalytic Reduction System for Heavy-Duty Application[J]. 上海交通大学学报(英文版), 2017, 22(5): 577-588.
WANG Tiantian1 (王天田), LIN Feng1* (林峰), HU Jie1 (胡杰),KE Yuqiang2 (柯于强), ZHANG Yueqiu3 (张岳秋). Control Strategy Research of a Selective Catalytic Reduction System for Heavy-Duty Application[J]. Journal of shanghai Jiaotong University (Science), 2017, 22(5): 577-588.
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