TU Braunschweig



Virtuelles Institut/Design of Safety Critical Automotive Systems Geschäftszeichen: VH-VI-212

Projektbearbeiter: Daniel Beisel, Uwe Becker
Auftraggeber: Helmholtz Gemeinschaft
Projektpartner: Carl von Ossietzky Universität Oldenburg - Interdisciplinary Research Center Safety-Critical Systems (IRC SCS),
Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR) - Institut für Verkehrssystemtechnik

In der ausgewählten Sprache ist keine Beschreibung verfügbar!

Advanced Driver Assistance Systems (ADAS) are more and more being introduced as active safety systems which are supposed to prevent accidents. However, the increasing system complexity and degree of autonomous driving functions poses larger possibilities for errors and malfunctions with more severe consequences. Up to now this has not been reflected in an adaptation of the development process which defines increasingly rigid procedures to guarantee safety in correlation to increasing system complexity and safety criticality.

One important aspect of this adapted design process is the early introduction of the driver into the development process. This requires an interactive design procedure in a driving simulator to implement a prototype which is in a second step introduced in a car used for testing on test tracks with experienced test drivers. When this has been approved, trips in real traffic are possible for the test drivers to examine system performance under realistic circumstances. Finally, tests with normal drivers should be performed before the system is approved for the market. Thus, on the one hand this development process moves from flexible, easy to change software applications towards clearly specified hardware prototypes. On the other hand the effects of the ADAS are analyzed under increasingly realistic circumstances to improve the validity of the results. For both aspects, procedures and criteria have up to now not been specified to cover the proceeding from one step to another.

The Virtual Institute (VI) ?Design of Safety Critical Systems? (DESCAS) addresses both research questions by developing methods and procedures for one relevant advanced driver assistance system. By starting with an existing system which is currently also developed further by several OEM and first tier suppliers it is possible to build up on knowledge about system functionality and algorithms and to concentrate on the development process. Here, three aspects are addressed:

  •  Software Development (SD)
  •  System Architecture (SA)
  •  Verification and Validation (VV)