The Application of Telematics to the High-Precision Assessment of Fuel-Borne Fuel Economy Additives
Technical Paper
2012-01-1738
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The demonstration benefit from fuel-borne fuel-economy additives to a precision
of 1%, or better, traditionally requires very careful experimental design and
considerable resource intensity. In practice, the process usually requires the
use of well-defined drive cycles (e.g. emission certification cycles HFET, NEDC)
in conjunction with environmentally-controlled chassis dynamometer facilities.
Against this background, a method has been developed to achieve high-precision
fuel economy comparison of gasoline fuels with reduced resource intensity and
under arbitrary real-world driving conditions. The method relies upon the
inference of instantaneous fuel consumption via the collection of OBD data and
the simultaneous estimation of instantaneous engine output from
vehicle dynamical behaviour. When applied to a fleet trial employing matched
test and control vehicles, relative vehicle fuel economy for multiple fuels may
be estimated largely independently of driver, vehicle and environmental factors.
The on-road precision achieved by the telematics methodology is shown to
approach that obtained in similar fleet trials using conventional chassis
dynamometer approaches.
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Nattrass, S. and Jones, W., "The Application of Telematics to the High-Precision Assessment of Fuel-Borne Fuel Economy Additives," SAE Technical Paper 2012-01-1738, 2012, https://doi.org/10.4271/2012-01-1738.Also In
References
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