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논문 기본 정보

자료유형
학술대회자료
저자정보
Yeonsoo Kim (Seoul National University) Changho Jung (Hyundai Motor Company) Chang Hwan Kim (Hyundai Motor Company) Yong Wha Kim (Hyundai Motor Company) Jong Min Lee (Seoul National University)
저널정보
제어로봇시스템학회 제어로봇시스템학회 국제학술대회 논문집 ICCAS 2018
발행연도
2018.10
수록면
1,376 - 1,382 (7page)

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초록· 키워드

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NO<SUB>x</SUB> emission from diesel vehicles has become an environmental problem, and regulatory standards have been strengthened with the real driving test. Selective catalytic reduction (SCR) with an active urea dosing system is one of the promising aftertreatment systems for both heavy- and light-duty vehicles. This study proposes backstepping control integrated with model predictive control to determine the amount of urea dosing. First, we prove that the subsystem of SCR is input-to-state stable with respect to the disturbances regardless of the value of the coverage fraction. Second, the desired coverage fraction of the catalyst is determined by solving the finite-horizon optimal control problem with the information of measurable disturbances. The backstepping control approach is then applied to determine the value of the manipulated input to achieve the desired coverage fraction. Compared to the results of the backstepping controller with a fixed coverage fraction setpoint, the proposed controller can reduce SCR-out NO<SUB>x</SUB> by 1.91 % using 0.24 % less amount of SCR-in NH₃. In addition, the total efficiency of NH₃ usage by the proposed controller is always higher than that of the backstepping controller with a coverage setpoint of 0.1.

목차

Abstract
1. INTRODUCTION
2. PRELIMINARIES
3. MAIN RESULTS
4. CONCLUSION
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UCI(KEPA) : I410-ECN-0101-2018-003-003540014