United States Department of Transportation
i
Eco-Drive Experiment on Rolling Terrain for Fuel Consumption Optimization: [techbrief]
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2017-12-01
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[PDF-493.74 KB]
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Abstract:Eco-drive is one of many techniques that have been developed to increase vehicle fuel efficiency. Connected Vehicle (CV) data is now being leveraged to allow vehicles to cooperate better within current and future environments vis-a-vis traffic conditions, signal timing, and terrain information. This study investigates the use of vehicle automation and mobile communication technology to derive the maximum benefits from eco-drive. The concept of vehicle-to-infrastructure (V2I)-based eco-drive is illustrated in figure 1. Traffic management centers (TMCs) maintain databases of roadway profiles (i.e., location, horizontal and vertical curves, work zones, etc.). In this concept, TMCs predefine a list of roadway segments on which automated eco-drive is recommended or enforced. These segments are selected because of their potential for significant fuel savings according to segment characteristics. Once the eco-drive vehicle receives information from the TMC, an onboard computer equipped with a preloaded algorithm will design a recommended trajectory (e.g., speed profile) for the vehicle to follow through the entire rolling segment. This algorithm also accounts for other factors such as vehicle operating capability, driver comfort, safety, and speed limits.
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