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Real-Time Engine and Aftertreatment System Control Using Fast Response Particulate Filter Sensors
Technical Paper
2016-01-0918
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Radio frequency (RF)-based sensors provide a direct measure of the particulate filter loading state. In contrast to particulate matter (PM) sensors, which monitor the concentration of PM in the exhaust gas stream for on-board diagnostics purposes, RF sensors have historically been applied to monitor and control the particulate filter regeneration process. This work developed an RF-based particulate filter control system utilizing both conventional and fast response RF sensors, and evaluated the feasibility of applying fast-response RF sensors to provide a real-time measurement of engine-out PM emissions. Testing with a light-duty diesel engine equipped with fast response RF sensors investigated the potential to utilize the particulate filter itself as an engine-out soot sensor. Measurements of the instantaneous change in the filter PM loading state using the fast response RF sensors were compared to measurements of engine-out PM emissions using conventional test cell instrumentation including the AVL micro soot sensor and tapered element oscillating micro-balance (TEOM). The results showed a high degree of correlation between the fast response RF sensor and test cell instruments. From a practical standpoint, the results indicate considerable potential for feedback control and engine diagnostics based on real-time measurements of engine-out PM emissions from a particulate filter equipped with a fast response RF sensor.
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Authors
- Alexander Sappok - CTS Corporation Boston Innovation Office
- Paul Ragaller - CTS Corporation Boston Innovation Office
- Leslie Bromberg - CTS Corporation Boston Innovation Office
- Vitaly Prikhodko - Oak Ridge National Laboratory
- John Storey - Oak Ridge National Laboratory
- James Parks - Oak Ridge National Laboratory
Topic
Citation
Sappok, A., Ragaller, P., Bromberg, L., Prikhodko, V. et al., "Real-Time Engine and Aftertreatment System Control Using Fast Response Particulate Filter Sensors," SAE Technical Paper 2016-01-0918, 2016, https://doi.org/10.4271/2016-01-0918.Also In
References
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