IVHS Countermeasures for Rear-End Collisions. Task 2. Functional Goals

摘要

The overall purpose of this project is to develop practicable performancespecifications or guidelines for rear-end collision avoidance systems. In Task 2 Functional goals were developed. A functional goal is defined as any changes to the pre-crash and crash situation that would help to eliminate or mitigate the severity of collisions and, specifically for this report, modifications or changes to the driver's vehicle that enhance the driver's performance. To establish the functional goals, a taxonomy of collision subsets and crash-related events that provide a basis for identify opportunities for intervention in the sequence of events leading to a crash was developed for each of the three basic types of rear-end collision avoidance and related systems (Driver Warning System (DWS), Intelligent Cruise Control (ICC) System, Automatic Control System (ACS)). The functional goals established for each of the system types is based on this taxonomy. In addition, the dynamic situations relevant to the rear-end crash problem were developed. These dynamic situations allow the events leading to accidents, and accidents themselves, to be subdivided into smaller groups that can be addressed individually. In addition terms and definitions were established as they relate to this program. This is done to provide background into the rear-end collision avoidance problem and to standardize on definitions and terminology.