TY - JOUR
AU1 - Wang, Tiantian
AU2 - Lin, Feng
AU3 - Hu, Jie
AU4 - Ke, Yuqiang
AU5 - Zhang, Yueqiu
AB - Abstract 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 (NO x ) 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. NO x 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.
TI - Control strategy research of a selective catalytic reduction system for heavy-duty application
JF - "Journal of Shanghai Jiaotong University (Science)"
DO - 10.1007/s12204-017-1866-9
DA - 2017-10-01
UR - https://www.deepdyve.com/lp/springer-journals/control-strategy-research-of-a-selective-catalytic-reduction-system-2qs6KzA1Ki
SP - 577
EP - 588
VL - 22
IS - 5
DP - DeepDyve
ER -