What is it about?
Prism signal processing is a new non-recursive FIR filter developed by the AIRG at Oxford. Here we introduce it, and describe its application to diesel fuel injection monitoring for very short injections of fuel at up to 1000bar. This shows the potential of this technique, and its ability to potentially provide on-engine monitoring of fuel injection - which cannot be done at the moment.
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Why is it important?
If we have the ability to monitor fuel injection in real time on an engine this will be a step change in capability, enabling ageing effects, cylinder-cylinder variations, and new injection technologies such as digital rate shaping to be measured and exploited. This is all part of a drive to enable low emitting ICEs for the future.
Perspectives
This was the first output from a 3-month feasibility study funded by the APC and Rheonik. I could not be more pleased with the results, which have confirmed that the technique is feasible, and look forward to further researching it with the goal of providing on-engine fuel monitoring.
Dr Felix CP Leach
University of Oxford
Read the Original
This page is a summary of: Fast Coriolis mass flow metering for monitoring diesel fuel injection, Flow Measurement and Instrumentation, December 2017, Elsevier,
DOI: 10.1016/j.flowmeasinst.2017.09.009.
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