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Calculation of volume from crank angle using reconfigurable hardware

conference contribution
posted on 2012-01-01, 00:00 authored by J Banks, N A Kelson, H Macintosh, M Dagg, R Hayward, Tim Bodisco, R J Brown
Fast calculation of quantities such as in-cylinder volume and indicated power is important in internal combustion engine research. Multiple channels of data including crank angle and pressure were collected for this purpose using a fully instrumented diesel engine research facility. Currently, existing methods use software to post-process the data, first calculating volume from crank angle, then calculating the indicated work and indicated power from the area enclosed by the pressure-volume indicator diagram. Instead, this work investigates the feasibility of achieving real-time calculation of volume and power via hardware implementation on Field Programmable Gate Arrays (FPGAs). Alternative hardware implementations were investigated using lookup tables, Taylor series methods or the CORDIC (CoOrdinate Rotation DIgital Computer) algorithm to compute the trigonometric operations in the crank angle to volume calculation, and the CORDIC algorithm was found to use the least amount of resources. Simulation of the hardware based implementation showed that the error in the volume and indicated power is less than 0.1%.



Computational Methods. Conference (4th : 2012 : Gold Coast, Qld.)


1 - 8




Gold Coast, Qld.

Place of publication

[Gold Coast, Qld.]

Start date


End date




Publication classification

E Conference publication; E1.1 Full written paper - refereed

Copyright notice

2012, ICCM



Title of proceedings

ICCM 2012 : Proceedings of the 2012 International Conference on Computational Methods