Effect of Driving Conditions and Auxiliaries on Mileage and CO
Emissions of a Gasoline and an Electric City Car
This investigation describes the results of an experimental and numerical research project aimed at comparing mileage and CO2 emissions from two different commercial versions of Daimler AG Smart ForTwo car: conventional (gasoline) and electric (ED). The investigation includes numerical simulations with the AVL CRUISE software package and on-board acquisitions. A data acquisition system has been designed for this purpose and assembled on board of the Smart ED. The system is composed by a GPS antenna with USB interface, two current transducers, a NI-DAQ device and a netbook computer with a LabView-VI. This system provided on-board information about driving cycle and current flows, gathered simultaneously by GPS, transducers and NI-DAQ. The system was also used to evaluate the losses of energy during the recharge of the electric car. The two cars have been tested over a wide range of driving conditions related to different routes, traffic conditions and use of on-board accessories (i.e. Air Conditioning and radio). The CO2 emissions have been evaluated with a Well-to-Wheel approach.
Citation: Donateo, T., Ingrosso, F., Bruno, D., and Laforgia, D., "Effect of Driving Conditions and Auxiliaries on Mileage and CO2 Emissions of a Gasoline and an Electric City Car," SAE Technical Paper 2014-01-1812, 2014, https://doi.org/10.4271/2014-01-1812. Download Citation