Browse Publications Technical Papers 2019-01-1398
2019-03-25

The Carbon Footprint Reduction Potential of Using micro EV Car-Sharing Service in a University Campus 2019-01-1398

Small electric vehicles are a viable solution to improve the efficiency of using individual vehicles in major cities, saving energy and protecting the environment. Ha:mo car sharing service was offered at a University campus to demonstrate a support for last-mile mobility. The service involves a micro EV (Toyota COMS) with one-seat where the service is offered to University students, staff as well as general public. To validate the effectiveness of the service, there is a need for specific data collection on the amount of energy consumption of small electric vehicles in specific traffic conditions of each city. This study presents the Toyota COMS electricity energy consumption measurement and using the Toyota Ha:mo GPS data to evaluate the energy consumption modeling of small electric vehicle. The model was shown to be accurate within 4% and the model was applied to assess the operation of Ha:mo in the campus over a period of time. At the same time, the energy consumption was compared in the scenario where the regular combustion vehicles are used. This study demonstrates the amount of carbon footprint reduced by using the car sharing service in replacing the use of combustion vehicles. Compared to the electric propulsion, the combustion engine is more sensitive to stop-and-go traffic condition in the campus environment and the energy consumption increases much more strongly such a traffic.

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