Maneuver-Based Vehicle Guidance Based on the Conduct-by-Wire Principle
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
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Maneuver-Based Vehicle Guidance Based on the Conduct-by-Wire Principle Sebastian Geyer
6.1 Introduction 6.1.1 Motivation Modern Advanced Driver Assistance Systems (ADAS) have established a standard of driving comfort and safety unknown so far. Vehicles have become increasingly “intelligent” allowing the driver to delegate specific subtasks of vehicle guidance to these systems or to let the automation take over vehicle guidance completely in emergency situations. However, the scientifically proven advantages of ADAS (Hummel et al. 2011) are accompanied by an important and relevant side effect: increasing complexity. Today, most ADAS are developed separately, with the consequence that each of these systems has its own user interface and interaction concept. This increasing complexity is contrary to the original goal of enhancing comfort and safety. The highest level of vehicle guidance automation is represented by fully autonomous cars. Research in this field has made extensive advances in the last ten years, but the challenges of fully autonomous vehicles in public traffic are just starting to be identified (Urmson et al. 2008; Saust et al. 2011; Ardelt et al. 2012). In particular, the question of possible approval processes for autonomous vehicles in public traffic is still unsolved. Moreover, today’s legal requirements such as the 1968 Vienna Convention on Road Traffic (United Nations 1968) prevent the market introduction of these systems. A solution for the described problem of increasing user complexity when combining multiple assistance systems and a very important step towards fully automated driving might be the innovative vehicle guidance frameworks of cooperative guidance and control, exemplified in concepts like H-Mode (Flemisch et al. 2003) or S. Geyer (B) Institute of Automotive Engineering, Technische Universität Darmstadt, Petersenstraße 30, D-64287 Darmstadt, Germany e-mail: [email protected] M. Maurer and H. Winner (eds.), Automotive Systems Engineering, DOI: 10.1007/978-3-642-36455-6_6, © Springer-Verlag Berlin Heidelberg 2013
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Conduct-by-Wire (CbW). The driver of a Conduct-by-Wire vehicle assigns maneuver commands via the so-called maneuver interface, which also allows the parameterization of the chosen maneuvers and interaction at the stabilization level if desired. This concept allows a high degree of automation, while—unlike fully automated concepts—still keeping the driver responsible for the vehicle guidance according to the 1968 Vienna Convention on Road Traffic. The interdisciplinary research project Conduct-by-Wire at the Technische Universität Darmstadt aims to provide a technical feasibility assessment of the Conduct-by-Wire concept.
6.1.2 Objectives This chapter proposes a methodology for the technical feasibility assessment of an innovative vehicle guidance concept based on the Conduct-by-Wire principle. Focus lies on the analysis of the driver-vehicle interaction. The methodology of the proposed top-down approach that allows an assessment in the early con
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