Detection of fires in vehicle engine compartments is challenging. High airflows, large temperature variations, dirty environment and complicated geometries make it difficult to determine the optimal type of detection technology and adequate location of sensors. A new test method has been developed for evaluation of fire detection systems meant for engine compartments of heavy vehicles. The test method considers all typical challenges normally encountered in an engine compartment, evaluating both detection system performance and durability. Certification rules connected to the new test method will ensure high quality and high performance of certified fire detection systems, increasing fire safety of vehicles.

This paper gives an outline of the new certification rules, test method and corresponding research.