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ORNL: Speed synchronization through connected vehicle technology contributes to significant fuel economy improvements in conventional and hybrid vehicles
31 December 2013
A study by researchers at Oak Ridge National Laboratory earlier this year concluded that speed synchronization through connected vehicle technology can contribute to fuel economy improvement more than 4% for the conventional vehicle fleet and at least 7% for the hybrid electric fleet.
The team introduced a simulation-based framework to explore the impact of speed synchronization on fuel economy improvement for fleets in traffic. The framework comprises traffic and vehicle modules. The traffic module is used to simulate driver behavior in urban traffic; and the vehicle module is employed to estimate fuel economy. The driving schedule links the two.
In all scenarios analyzed, the leading vehicle operates under the EPA Urban Dynamometer Driving Schedule (UDDS), while the other five vehicles follow the leader consecutively. Every follower in the fleet was governed by a driver behavior model and their desired speeds may be adjusted according to received speed information of the leading vehicle.
Since the analyses show promising results, research of further improving fuel economy with connected vehicle technology under real traffic conditions is recommended.—Li and Gao
Li, J. and Gao, Z. (2013) “Exploring the Impact of Speed Synchronization through Connected Vehicle Technology on Fleet-Level Fuel Economy,” 6(1):513-221 doi: 10.4271/2013-01-0617
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