FedEx and Volvo demonstrate platooning in North Carolina
July 10, 2018
Logistics giant FedEx has used advanced driver assistance system (adas) technology to conduct on-highway lorry platooning tests as part of a research collaboration with Volvo Trucks and the North Carolina Turnpike Authority (NCTA).
This is said to be the first public on-highway showcase of platooning technology between a major lorry maker and a transportation company in the USA.
"Volvo Trucks has long supported platooning because it benefits freight companies and professional drivers alike through safer, more fuel-efficient operations," said Per Carlsson, acting president of Volvo Trucks in North America. "We continue preparing for deployment of trucks with greater vehicle-to-vehicle communications capabilities that support higher levels of adas. We know these technologies will be part of our future, but exact timing depends on many things, namely regulations, infrastructure, safety standards and market demand."
The platoon consisted of three trained, professional lorry drivers in Volvo VNL tractor units, each pulling double 8.5 metre trailers. Through CACC, a wireless vehicle-to-vehicle (V2V) communications technology, the tractor units and trailers remained in constant communications. The tractors and trailers travelled at speeds of up to 100km/hr while keeping a time gap of 1.5 seconds, maintaining a closer distance than what is typical for on-highway tractors. Staged and unplanned vehicle cut-ins demonstrated how the technology handles common traffic situations.
The demonstration was the result of an on-going research collaboration. Since April 2018, three Volvo VNL tractors have been paired with various combinations of FedEx trailers to simulate real-world routes and trailer loads. The potential benefits of platooning that are being studied during this collaborative research include faster responses to hard braking while maintaining safety and fuel efficiency.
"FedEx was built on innovation and it continues to be an integral part of the FedEx culture and business strategy," said Gloria Boyland, corporate vice president of FedEx. "We are pleased to collaborate with Volvo Trucks and the North Carolina Turnpike Authority to learn more about how platooning technology can benefit our team members while improving fuel efficiency for our fleet."
The V2V communications help reduce the reaction time for braking and enables vehicles to follow closer, automatically matching each other's speed and braking. The technology is meant to serve as an aid – not a replacement – for skilled professional lorry drivers.
When lorries can drive closely behind one another, fuel efficiency is improved as a result of reduced drag. Drag accounts for up to 25 per cent of a lorry's total fuel consumption, and the closer the lorries drive to each other, the greater the fuel-saving potential. Reducing the traveling distance between vehicles also allows for greater highway use, helping alleviate traffic congestion.
"This collaboration demonstrates the turnpike authority's commitment to invest in the safety of customers with state-of-the-art technology that could become an invaluable tool for transportation," said NCTA executive director Beau Memory. "With some of the most advanced roadways in the nation, the turnpike authority wants all drivers to have every tool and technological advancement necessary to reach their destination safely and efficiently."
Volvo Trucks and FedEx plan to continue developing the Volvo CACC technology into the foreseeable future with the goal of continuing to learn about the potential benefits offered by vehicle platooning. Additionally, this testing should allow the participants to adapt to the technological and regulatory developments that will ultimately determine the commercial viability of platooning technology in the USA.