| Abstract
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<p>Two virtual sensors are proposed … <p>Two virtual sensors are proposed that use the spark-plug based ion current sensor for combustion engine control. The first sensor estimates combustion variability for the purpose of controlling exhaust gas recirculation (EGR) and the second sensor estimates the pressure peak position for control of ignition timing. Use of EGR in engines is important because the technique can reduce fuel consumption and NOx emissions, but recirculating too much can have the adverse effect with e.g. increased fuel consumption and poor driveability of the vehicle. Since EGR also affects the phasing of the combustion (because of the diluted gas mixture with slower combustion) it is also necessary to control ignition timing otherwise efficiency will be lost. The combustion variability sensor is demonstrated in a closed-loop control experiment of EGR on the highway and the pressure peak sensor is shown to handle both normal and an EGR condition.</p>oth normal and an EGR condition.</p>
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| Author
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Stefan Byttner +
, Ulf Holmberg +
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| Conference
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27th IASTED International Conference on Modelling, Identification, and Control, 11-13 February, 2008, Innsbruck, Austria
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| Diva
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http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:239079
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| HostPublication
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Proceedings of the 27th IASTED International Conference on Modelling, Identification, and Control, MIC +
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| PublicationType
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Conference Paper +
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| Publisher
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ACTA Press +
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| StartPage
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7 +
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| Title
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Closed-loop control of EGR using ion currents +
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| Year
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2008 +
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| Has queryThis property is a special property in this wiki.
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Publications:Closed-loop control of EGR using ion currents +
, Publications:Closed-loop control of EGR using ion currents +
, Publications:Closed-loop control of EGR using ion currents +
, Publications:Closed-loop control of EGR using ion currents +
, Publications:Closed-loop control of EGR using ion currents +
, Publications:Closed-loop control of EGR using ion currents +
, Publications:Closed-loop control of EGR using ion currents +
, Publications:Closed-loop control of EGR using ion currents +
, Publications:Closed-loop control of EGR using ion currents +
, Publications:Closed-loop control of EGR using ion currents +
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| Categories |
Publication +
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| Modification dateThis property is a special property in this wiki.
|
30 September 2016 20:42:22 +
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