F2008-08-114
Qualification Procedures and Test Methods for Safety Assistance Systems in Passenger Cars
Title: Qualification procedures and test methods for active safety systems in passenger cars
Author: Stephan Zecha
Contents:
A remarkable number of Active Safety systems for Collision mitigation and Avoidance have been introduced to the market in the last few years. For these systems only limited standardized test procedures, test specifications or test equipment are available nowadays. The main challenge is the lack of clear and comprehensive qualification procedures and precise test equipment which are mandatory for the performance assessment and improvement The qualification procedure has to take into account the entire range of system functions which are intended or might occur under certain circumstances. Thus a proper qualification procedure has to be based on an extended functional analysis, established safety standards and sufficient field/testing experience with the regarded system. For the conduction of the qualification process it is necessary to have the proper test equipment for each stage of the process.
The envisaged presentation will include a general introduction to the set-up of such qualification processes for selected applications. The main part will include the range of test equipment which shall be applied within the qualification process. The main focus will be on the qualification of advanced Pre-Crash systems (PCS) and Predictive Pedestrian Protection Systems (PPP).
The main aspect of the qualification process is proof of system reliability under all relevant circumstances. Therefore a comprehensive set of requirement has to be established related to each PCS or PPP system. The test equipment has to be able to proof these requirements as well under different conditions. This leads to the necessity of a broad range of testing systems: The following testing systems will be illustrated in detail: 1. Reference Systems: These Systems will measure the proper performance of the PCS or PPP system under real world conditions 2. Pre-Crash Test Vehicles: These test vehicles will test PCS systems until almost a collision takes place. These devices will be applied on test tracks 3. Pedestrian dummies: Different types of moveable or animated test dummies will be presented. The background for the set-up of these systems will be illustrated especially regarding the analysis of typical motion characteristics of human beings.
The presentation will conclude with a forecast for the required standardization of the qualification processes and the required harmonization of the testing equipment. In addition a short forecast will show the possibilities of the range of virtual testing in the qualification process.
Session: Advanced Safety Systems II