Abstract
This paper aims to present the development of a prototype driver assistance/ information system for a fuel-efficient and safe approaching and crossing of vehicles at traffic light controlled intersections. The implemented driver assistance/ information system is based on an ad-hoc-network communication system connecting an advanced traffic light controller module attached to a standard intersection control unit and a vehicle controller unit mounted in the vehicle approaching the intersection. Based on traffic light timing information, vehicle geographic positioning and dynamics data as soon as information on vehicle-surrounding traffic (preceding vehicle platoons) a situation-adaptive, time- and energy-optimal driving strategy is calculated that is brought as driving recommendation (approaching speed profile, combustion engine turn-off recommendation, red-light-crossing warning) to the driver via a HMI display. System functionality and different design steps are described; one driving situation example of applying a no-stop strategy (vehicle standstill avoidance) is taken to demonstrate the consideration of surrounding vehicles for the driving strategy by the use of a microscopic traffic model.
Keywords: car-to-infrastructure communication, motor-start-stop system, driving strategy, traffic light assistance, microscopic traffic model