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Study on estimation of PM mass in DPF from pressure drop in 3L diesel engine
- Issue Date
- 2010
- Keywords
- Diesel engine; DPF(Diesel particulate filter-trap); PM(Particulate matter); Pressure drop; SI(Soot index)
- Citation
- Transactions of the Korean Society of Mechanical Engineers, B, v.34, no.5, pp.499 - 504
- Volume
- 34
- Number
- 5
- Start Page
- 499
- End Page
- 504
- ISSN
- 1226-4881
- Abstract
- It is important to determine the exact soot mass in a DPF system in order to control the timing of PM regeneration. The soot mass accumulated in a filter can be estimated from the pressure drop in the filter and the exhaust gas flow rates. In this study, the soot index is defined as the pressure drop in the DPF divided by the pressure drop in a DOC. An effective signal processing method for determining the soot index is proposed; the results yielded by this method indicate good correlation between the soot index and the amount of soot loaded into the filter for both steady-state and transient-state operating conditions in a 3L diesel engine for passenger vehicles.
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Related Researcher
- Lee, Jin wook
- College of Engineering (School of Mechanical Engineering)