NDLI: On-board detection of SCR system insufficient and improper reductant by magnetically coupled resonators

Content Provider	IEEE Xplore Digital Library
Author	Chuang Wang Xinmei Yuan Jian Zhang
Copyright Year	2015
Description	Author affiliation: State Key Lab. of Automobile Dynamic Simulation, Jilin Univ., Changchun, China (Chuang Wang; Xinmei Yuan; Jian Zhang)
Abstract	Selective catalytic reduction (SCR) is a standard aftertreatment technique to meet current engine emission regulations. In SCR system, AdBlue is always used as the reductant to be injected into the exhaust stream to convert $NO_{x}$ into $N_{2}.$ In order to ensure engine emissions compliance, insufficient or improper reductant in tank needs to be detected. In this paper, a non-contact method is proposed to detect the reductant in AdBlue tank. Two magnetic resonance coupling circuits are designed for the AdBlue level detection and AdBlue concentration detection respectively. With an adjustable source coil structure, the impedance matching can be achieved and the sensitivities of the measurements are greatly improved. The feasibility of the proposed method is validated by simulation and experimental results.
Starting Page	1
Ending Page	4
File Size	672162
Page Count	4
File Format	PDF
ISBN	9781479919284
DOI	10.1109/IEEE-IWS.2015.7164546
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-03-30
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Impedance measurement Sensitivity Permittivity measurement Magnetic resonant coupling Magnetic resonance AdBlue Selective catalytic reduction(SCR) Conductivity On-Board Diagnostic (OBD) Impedance Permittivity
Content Type	Text
Resource Type	Article

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