Fuel-Efficient Control of Merging Maneuvers for Heavy-Duty Vehicle Platooning
ITSC(2015)
摘要
The formation of groups of closely-spaced heavy-duty vehicles, known as platoons, reduces the overall aerodynamic drag and therefore leads to reduced fuel consumption and reduced greenhouse gas emissions. This paper focuses on the optimal control of merging maneuvers for the formation of a growing platoon. Hereto, the merging problem is formulated as a hybrid optimal control problem and an algorithm for the computation of optimal merging times and corresponding optimal vehicle trajectories is developed by exploiting an extension of Pontryagin's maximum principle. Moreover, a model predictive control approach on the basis of this algorithm is presented that makes the merging maneuvers robust to modelling uncertainties and external disturbances. The results are illustrated by evaluating a scenario involving three vehicles, which indicates fuel savings of up to 13% with respect to the vehicles driving alone.
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关键词
fuel-efficient control,merging maneuver,heavy-duty vehicle platooning,closely-spaced heavy-duty vehicles,aerodynamic drag reduction,reduced fuel consumption,reduced greenhouse gas emission,hybrid optimal control problem,optimal vehicle trajectory,Pontryagin maximum principle
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