Foresighted driving and early detection of hazards is a key for safe driving. WILLWARN (Wireless Local Danger Warning) is a communication based system that supports the driver in safe driving through warnings and foresighted information.

Within the PReVENT Integrated Project, the three-year WILLWARN vertical subproject develops a system for on-board hazard detection, in-car warning management, and decentralised warning distribution by communication between vehicles on a road network. Positioning, relevance checks, message transport, and onboard message evaluation will enable a high benefit for the driver even at low equipment rates.

WILLWARN focuses on the following challenges:
Improved safety through car to car and car to infrastructure communication
High benefit for the user even at low equipment rates using cars as relays for    transporting messages in a road network
Design of a basic system at low cost

WILLWARN contributes to the PReVENT functions hazard messaging and warning, contributes to the electronic horizon, and enables foresighted driving.
Functional system design. Hazard detection algorithms (logics and observers)
   based on CAN data, GPS, and optional environment sensors e.g. radar.
Warning Message Management with messaging and forwarding strategies.
   On-board relevance checks and warning evaluation.
Communication requirements, choice of radios, frequency allocation, and
   standardisation. System architecture and protocols for routing and application.
Guidelines for Human Machine Interface.

WILLWARN will cover different scenarios in order to validate the concept:
Detection and warning of obstacles on the road, warning if the own car is an
   obstacle for others
Warning of emergency vehicles or slow vehicles
Detection of reduced friction or reduced visibility through bad weather
Warning of dangerous spots like construction zones through electronic beacons

Events and Milestones
The WILLWARN subproject has four milestones at the IP level:
Functional requirements and basic design decisions (Jan. 2005)
System Specification (July 2005)
Experimental setup & test equipment (July 2006)
Validation, evaluation and assessment (Jan. 2007)
The picture below shows how the milestones contribute to IP level.

Gerhard Noecker
WILLWARN Subproject Coordinator
DaimlerChrysler AG,

Consortium Partners
DaimlerChrysler AG Philips
TNO Automotive NTUA
BMW Forschung Und Technik GmbH CNRS