Stephan Hakuli

Development of a cooperative system behavior for a highly automated vehicle guidance concept based on the Conduct-by-Wire principle

Conduct-by-Wire (CbW) is a research project which breaks away from todays vehicle guidance by shifting the vehicle control task from a stabilization level to a conducting level. Instead of continuous stabilization on a designated trajectory - using the conventional control elements for manual steering, braking and accelerating - a Conduct-by-Wire vehicle is controlled by means of maneuver commands. By keeping the driver in the loop, the vehicle guidance is cooperatively shared between the driver and the automation. This article introduces an approach for the analysis of realizable automation levels and the design of a cooperative system behavior depending on the interaction concept between the human driver and the automation. Following a top-down approach, different driving scenarios are systematically analyzed as to the information needs that occur. This approach builds the basis for assessing the technical feasibility of a maneuver-based vehicle guidance concept based on the Conduct-by-Wire principle.

Temporal analysis of the gate concept as enabler for highly automated driving based on the Conduct-by-Wire approach

Conduct-by-Wire (CbW) is an innovative vehicle guidance concept that shifts the vehicle control task from the stabilization level to the guidance level. Instead of continuous stabilization on a designated trajectory - using the conventional control elements for manual steering, braking and accelerating - a CbW vehicle is controlled by means of maneuver commands. One important element on the way to realizing CbW might be the gate concept that consists in a segmentation of the vehicle guidance task and the identification of decision points during the execution of a drivers maneuver command. This article introduces an approach for the analysis of the time available for decision-making in systematically derived scenarios. For the first time, the results offer the basis for a suitability evaluation of the gate concept and thus a fundamental contribution to the technical feasibility assessment of CbW.

Conduct-by-Wire

1 Der Beitrag zu dieser Veroffentlichung wurde wahrend der Tatigkeit als wissenschaftlicher Mitarbeiter am Fachgebiet Fahrzeugtechnik der Technischen Universitat Darmstadt erarbeitet.