01473974

Component

Heavy-duty trucks are a critical component of the U.S. goods movement system; however, they consume a large amount of fuel and emit significant pollutant and greenhouse gas emissions. The trucking industry is always looking for any measure to improve their operations and reduce fuel consumption, including efficient routing. Many existing fleet management and routing systems are based on minimizing total miles traveled which does not necessarily minimize fuel consumption or emissions, particularly under congestion and in areas having significant changes in road grade. In this paper, we describe new Eco-Friendly Navigation (EFNav) algorithms that were developed specifically to minimize fuel consumption and emissions from heavy-duty trucks. An EFNav mesoscale model was developed from a rich set of truck energy and emissions data collected by UC-Riverside’s heavy-duty Mobile Emissions Laboratory (MEL) and a robust data set simulated for a wide range of operating conditions using CE-CERT’s heavy-duty truck energy and emissions model. The mesoscale model is the basis of the EFNav routing algorithm and provides a more accurate projection of fuel use than the standard average speed based estimation by accounting for vehicle mass and road grade. A prototype implementation of the eco-routing system was performed for a heavily loaded class-8 heavy-duty truck. It was shown that the navigation system, with real-time traffic information, was able to estimate projected fuel use to within 7.5% over the test routes and simulation work showed that the variance in fuel use between an empty and fully loaded vehicle was as much as 240% over the selected route.

This paper was sponsored by TRB committee ADC20 Transportation and Air Quality.

01470560

13-4548

English

17p

2013

Transportation Research Board 92nd Annual Meeting

Digital/other

Figures; References; Tables

Automobile navigation systems; Computer models; Diesel engine exhaust gases; Environmental impacts; Fuel consumption; Heavy duty trucks; Prototypes; Routing

Environmental-Friendly Navigation

Mesoscale

Energy; Environment; Highways; Motor Carriers; Operations and Traffic Management; Vehicles and Equipment; I15: Environment; I90: Vehicles

Transportation Research Board Annual Meeting 2013 Paper #13-4548

PRP, TRIS, TRB, ATRI

Feb 5 2013 12:53PM