Abstract
In this paper safety analysis based on a system model is presented to reduce rework in development of electric and electronic systems installed in vehicles. In order to meet the planned quality, cost, and delivery, it is effective to reduce reworks in development using the MBSE approach. Safety for vehicles used as a means of transport is particularly important in several quality characteristics. It is necessary to implement safety functions in electric and electronic systems of vehicles based on ISO 26262. We apply the safety analysis combined with FMEA (Failure Mode and Effect Analysis) and HAZOP (Hazard and operability study) to a system model describing an electronic parking brake system. By utilizing not only structural diagrams but also behavior diagrams, it is shown that malfunctions can be exhaustively captured in the system context. It can be expected to reduce the rework in safety activity based on ISO 26262 by safety analysis on the top level within system development.
