Detection of Combustion Properties in a Diesel Engine using Block Mounted Accelerometers

Andersson, Ingemar,1969Chalmers tekniska högskola,Chalmers University of Technology (författare)

Engine block mounted accelerometers was used for estimating combustion phasing parameters for a heavy duty diesel engine. Several sensor locations were evaluated for its sensitivity to combustion related vibrations and mechanical noise.One sensor-cylinder combination was selected for the evaluation of a simple algorithm to detect 10% and 50% burned mass fraction. The algorithm uses the accumulated accelerometer vibration energy as a base for extracting the 10% and 50% points respectively.The results show that the angular positions for 10% and 50% burned mass fraction can be estimated with precisions of 1.5 and 3 CAD respectively. It is also concluded that the early part of the accelerometer signal has a significant influence from a mechanical noise source related to the start of injection.

McKelvey, Tomas,1966Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)mckelvey (författare)
Larsson, Martin,1973Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)martila (författare)
Chalmers tekniska högskola (creator_code:org_t)

Ingår i:IFAC Proceedings Volumes (IFAC-PapersOnline): Elsevier BV19, s. 11866-118711474-66709783902823625

Av författaren/redakt...: Andersson, Ingem ...; McKelvey, Tomas, ...; Larsson, Martin, ...

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TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Elektroteknik oc ...; och Signalbehandling

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