Abstract

Increasing the fuel-efficiency is a current and essential question for all major car manufacturers. Supporting these efforts, the paper presents a shared control driver assistance system that may help the driver to apply a fuel-efficient driving strategy. For the proposed system, both driver and assistance system can apply forces to the acceleration pedal enabling a close cooperation between the two partners. The interaction between driver and such kind of assistance system can be described by means of a differential game. By solving this differential game, the assistance system calculates optimal control outputs. For realization, the assistance system is required to solve different game theoretic problems that are presented in this paper. The assistance system was implemented on a real time system, integrated in a driving simulator and validated in a driving study. The results indicate that the proposed system is able to save in average about 10% fuel in a highway scenario.

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