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Calculation of volume from crank angle using reconfigurable hardware

Banks, Jasmine Elizabeth, Kelson, Neil A., Macintosh, Hamish, Dagg, Matthew, Hayward, Ross, Bodisco, Timothy A., & Brown, Richard J. (2012) Calculation of volume from crank angle using reconfigurable hardware. In 4th International Conference on Computational Methods (ICCM 2012), 25-28 November 2012, Crowne Plaza, Gold Coast, QLD.

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Abstract

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%.

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ID Code: 55209
Item Type: Conference Paper
Keywords: FPGAs, CORDIC, internal combustion engine, volume, crank angle, trigonometric
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > AUTOMOTIVE ENGINEERING (090200) > Automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels) (090201)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Circuits and Systems (090601)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Schools > School of Electrical Engineering & Computer Science
Current > Research Centres > High Performance Computing and Research Support
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 [please consult the author]
Deposited On: 30 Nov 2012 09:27
Last Modified: 27 Feb 2013 07:03

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