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Particle sensors for onboard diagnostics will soon be required on vehicles to meet upcoming emissions regulations. Many potentially useable sensors available in the marketplace today already target onboard diagnostics and engine control applications. However, more knowledge is needed about how these particle sensors perform in engine exhaust applications under different engine operating conditions where temperature, flow, and particle characteristics are changing. Thus, a consortium has been formed.
Five engine manufacturers and three sensor manufacturers have joined the Consortium for Year 1. As of September 27, 2012, SwRI successfully completed the work with one sensor maker using 11 sensors running in parallel via CAN communication. We produced significant amount of sensor data as a function of:
Sensors short term survivability was performed at:
Work with the two remaining sensor makers is scheduled to be completed by the end of January, 2013. SwRI encourages all stake holders to join the consortium, as the membership for Year 1 remains open. The PSPD™ consortium provides non-bias high quality data on the performance and durability of various sensors in the market place.
Consortium Schedule of Events
About the ConsortiumCurrent Particle Sensor EvaluationCurrent research and evaluation is inconclusive in determining whether or not a particular particle sensor is sensitive to:
In addition, more knowledge is needed about how well particular particle sensors correlate with soot mass or with total (soot plus volatile) particulate matter (PM) mass since, by definition, total PM mass is a regulated property and soot mass is not a regulated property. To use a particle sensor for onboard diagnostics applications, one needs to understand what it measures and how it responds:
Due diligence in researching this area can be very expensive for particle sensor developers and for engine and vehicle manufacturer stakeholders, because not only does it require special infrastructure and unique capital resources, such efforts also require unique human resources with fundamental knowledge and experience in the area of particle science and engine emissions.
Particle Sensor Performance and Durability ConsortiumThe Department of Emissions Research and Development at SwRI is globally recognized for its efforts in the area of particle emissions research. Our unique capabilities and experiences in engine emissions particle science and technology enable us to offer the best services available to our clients. SwRI plans to make these resources available for evaluating particle sensors by launching the PSPD™ Consortium.
Any stakeholder in the consortium (e.g., engine and vehicle manufacturer, or particle sensor manufacturer) can either team together or conduct individual independent particle sensor evaluations on the same engine platform. SwRI's state-of-the-art particle instruments and particle calibration facility will be used to support research efforts during the PSPD™ Consortium.
Using SwRI's resources, several engine exhaust variables can be controlled, including:
For more information about our Particle Sensor Performance and Durability (PSPD™) Consortium, or how you can contract with Southwest Research Institute (SwRI), please contact Imad Khalek, Ph.D., at ikhalek@swri.org or (210) 522-2536.
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| Engine and Vehicle R&D Department | Engine, Emissions & Vehicle Research Division | SwRI Home | |
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Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 11 technical divisions. |
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May 08, 2013 |
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