Safety Assessment Procedure for Advanced Emergency Braking System

This paper suggests a safety assessment procedure for evaluation of enhanced longitudinal safety by Advanced Emergency Braking (AEB) system in Korea. The objective of project is to suggest safety evaluation procedure of the AEB system with the consideration of Korean road condition and physically meaningful situation. To develop the impact assessment procedure of the AEB system, the AEB test vehicle as well as the test scenario should be designed. Before the development of the test procedure, this paper reviews the international regulation of AEB system and traffic accident statistics, and develops domestic safety standards and evaluation requirements. Test scenario has been developed to assess the safety performance of AEB systems for the reductions in collision frequency and severity by using the Korea’s traffic accident statistics. Also, the test scenario is designed to represent the real driving condition and to evaluate the safety performance of AEB system in various situations. The AEB test vehicle comprises of a millimeter wave radar sensor, CCD camera and pre-developed AEB algorithm of which are processed to judge the collision risk. To evaluate the collision avoidance performance of the AEB test vehicle, pre-performance test was conducted by using the NCAPAEBS draft test procedure and proposed test scenario. From the traffic accident statistics and the field test result, it is shown that proposed AEBS test scenario represents not only the frequently occurred collision case but also physically meaningful situation in terms of expected control performance of the AEB system. Also, it has been shown that AEB system of prior study can reduce the collision velocity and provide the greatest real world benefits. Because of the limitation of test equipment and safety, test scenario about Cut-in vehicle could not be included in the test results of the proposed test procedure. However, by using the analysis methods and simulation test, the safety effect for enhanced longitudinal safety of the AEBS with respect to Cut-in case has been assessed scientifically. In this paper, the safety assessment procedure for AEB system has been described to evaluate the safety performance of the AEB system. The test procedure according to AEB system provides objective safety performance level of each AEB system. Also, these tests are expected to be a strong driver of improved safety in the real world.