Predictive Use of Traffic Signal State for Fuel Saving
2009
Abstract This paper proposes preview of upcoming traffic light information to minimize idle at the lights and reduce fuel use. An optimal control algorithm is formulated for each equipped vehicle that uses short range radar and traffic signal information predictively to schedule an optimum velocity trajectory for the vehicle. The objectives are timely arrival at green light with minimal use of braking, maintaining safe distance between vehicles, and cruising at or near set speed. Preliminary simulation results show considerable reduction of fuel use.
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