Modern vehicles have incorporated numerous safety-focused advanced driver-assistance systems (ADAS) in the last decade including smart cruise control and object avoidance. In this article, we aim to go beyond using ADAS for safety and propose to use ADAS technology to enable predictive optimal energy management and improve vehicle fuel economy (FE). We combine ADAS sensor data with a previously developed prediction model, dynamic programming (DP) optimal energy management control, and a validated model of a 2010 Toyota Prius to explore FE. First, a unique ADAS detection scope is defined based on optimal vehicle control prediction aspects demonstrated to be relevant from the literature. Next, during real-world city and highway drive cycles in Denver, Colorado, a camera is used to record video footage of the vehicle environment and define ADAS detection ground truth. Then, various ADAS algorithms are combined, modified, and compared to the ground truth results. Lastly, the impact of four vehicle control strategies on FE is evaluated: (1) the existing vehicle control, (2) actual ADAS detection for prediction and optimal energy management (we consider two variants ADAS1 and ADAS2 for this strategy), (3) ground truth ADAS detection for prediction and optimal energy management, and (4) 100% accurate prediction and optimal energy management. Results show that the defined ADAS scope and algorithms provide close correlation with ADAS ground truth and can enable FE improvements as part of a prediction-based optimal energy management strategy (EMS). Our proposed approach can leverage existing ADAS technology in modern vehicles to realize prediction-based optimal energy management, thus obtaining FE improvements with minor modifications.


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    Title :

    Toward Improving Vehicle Fuel Economy with ADAS


    Additional title:

    Sae Intl. J Cav


    Contributors:


    Publication date :

    2018-10-29


    Size :

    12 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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