Hazards and Risk Analysis

In complex systems, such as motor vehicles, functional safety aspects play a tremendously important role. The early detection of risks and failure criteria help optimise the reliability of the system and minimise the risks of project delays and recalls.

We assume responsibility for the co-ordination and specialist supervision of hazard and risk analyses. This includes aspects such as

  • method expertise
  • a knowledge of the underlying standards for the domain in question and
  • a mature technical understanding of the railway, aviation and automotive domains.

Working through the above points, we use the following procedures and support project teams in the following areas

  • system analysis and identifying failure criteria
  • FMEA (Failure Mode and Effects Analysis)
  • GuR (Hazard and risk analysis), and

In the area of space flight, we carry out analyses/simulations of potential hazards from space debris and meteor particles. For more information, please refer to Mission Analyses.

Example Projects

We have been able to successfully put our expertise to the test using the following example projects:

FMEA

FMEA is a preventative quality assurance tool. Potential weaknesses are identified by thinking about potential errors as early as in the planning and development phase, the effects of which are then described and evaluated.

All FMEA types have the common attribute of making a product or process more reliable and reducing the impact of faults. There are various types

 

  • System FMEA (Product-FMEA System)
  • Design FMEA (Product-FMEA Design)
  • Process FMEA
  • FMEDA (Failure Modes, Effects and Diagnostic Coverage Analysis)

PHA/GuR

The risk analysis of a system/system function is determined using a risk analysis. This analysis classifies potential hazards and risks, taking into account possible consequences in the case where a system behaves unexpectedly and does so under all predictable usage conditions.

This classification forms the basis for performing a safety process. Based on this risk classification, safety goals are derived for the design and processes in order to provide sufficient protection against the critical malfunction (hazard). The risk classes are defined differently in the individual standards:

  • IEC 61508: SIL (Safety Integrity Level)
  • ISO 26262: ASIL (Automotive SIL)
  • RTCA DO-254, RTCA DO-178B/C, SAE ARP 4754: DAL (Development Assurance Level)