Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(2), 503-507 | DOI: 10.11118/actaun201664020503

Calibration and its Use in Measuring Fuel Consumption with the CAN-Bus Network

Adam Polcar, Jiří Čupera, Vojtěch Kumbár
Department of Technology and Automobile Transport, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic

The article deals with the description of calibration and its use in measuring fuel consumption via the CAN-Bus network. The CAN-Bus communication network holds great potential for the area of vehicle testing, since it allows the utilization of internal sensors of the vehicle to monitor its output parameters. In order to ensure proper accuracy of the measurements, however, it is best to perform calibration of the relevant sensors using certified measuring instruments. The main focus of the article is the calibration of the fuel consumption as measured by the CAN-Bus network based on fuel consumption measured by precision mass flow meters. Using the least squares method and a regression triplet, a calibration curve was created from the measured data to describe the relation between the two variables. The calibration curve was also used to calculate the reverse estimates along with confidence intervals for randomly chosen fuel consumptions obtained from the CAN-Bus network. To express the accuracy of the calibration methods, we also defined the limit values which express when the signal is still statistically significant enough to be distinguished from noise.

Keywords: least squares method, regression triplet, reverse estimate, estimate confidence interval, calibration limits
Grants and funding:

The research has been supported by the project TP 4/2014 financed by IGA AF MENDELU.

Prepublished online: May 4, 2016; Published: May 1, 2016  Show citation

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Polcar, A., Čupera, J., & Kumbár, V. (2016). Calibration and its Use in Measuring Fuel Consumption with the CAN-Bus Network. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 64(2), 503-507. doi: 10.11118/actaun201664020503
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