Software Requirement Specification for the Automotive Sector: The Case of a Post-Collision Event Control System

Safety systems in the automotive sector are very important. Among these are ABS brake systems, stability control system, and air bag systems. One group of these safety systems is oriented toward collisions and are activated at different times, having specific objectives, for example 1) systems activated before a collision have the objective of preventing impact, 2) systems activated during a collision have the objective of minimizing the physical harm to occupants, and 3) after a collision, their objective is to minimize the time between the collision and arrival of outside assistance for the vehicle's occupants. However, while type 1 systems (passive) and type 2 systems (active) are currently in many vehicles, type 3 systems have not been thoroughly researched. Therefore, this article describes a proposal of the behavioral logic of a type 3 system, which is represented through a software requirement specification document (SRS). The SRS presented satisfies some of the recommendations of the requirements of the automotive standard ISO 26262 and two of the processes used relate to the requirements of the standard ISO/IEC/IEEE 15288.