The Accuracy and Correction of Fuel Consumption from Controller Area Network Broadcast

Paper #:
  • 2017-01-7005

Published:
  • 2017-10-13
Citation:
Wang, L., Gonder, J., Wood, E., and Ragatz, A., "The Accuracy and Correction of Fuel Consumption from Controller Area Network Broadcast," SAE Technical Paper 2017-01-7005, 2017.
Pages:
9
Abstract:
Fuel consumption (FC) has always been an important factor in vehicle cost. With the advent of electronically controlled engines, the controller area network (CAN) broadcasts information about engine and vehicle performance, including fuel use. However, the accuracy of the FC estimates is uncertain. In this study, the researchers first compared CAN-broadcasted FC against physically measured fuel use for three different types of trucks, which revealed the inaccuracies of CAN-broadcast fueling estimates. To match precise gravimetric fuel-scale measurements, polynomial models were developed to correct the CAN-broadcasted FC. Lastly, the robustness testing of the correction models was performed. The training cycles in this section included a variety of drive characteristics, such as high speed, acceleration, idling, and deceleration. The mean relative differences were reduced noticeably.
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