A brand of the CADFEM Group

FUNCTIONAL SAFETY

FUNCTIONAL SAFETY ANALYSIS FOR E/E SYSTEMS

FUNCTIONAL SAFETY

MODEL-BASED APPROACH FOR FUNCTIONAL SAFETY-CRITICAL APPLICATIONS

Functional Safety analysis is a systematic approach used to identify, access and mitigate risks associated with the functional behavior of safety-critical systems. Key aspects of functional safety analysis include hazard identification, risk assessment and the implementation of safety measures to reduce the probability and severity of accidents and injuries. Functional safety analysis is crucial for ensuring that safety-critical systems meet the required safety integrity level (SIL) and comply with relevant standards and regulations, such as ISO 26262, ARP 4761, ISO 21434, ISO 21448, IEC 61508, MIL-STD-882E

Analysis Type

ISO 26262, ARP 4754/4761, ISO 21434, ISO 21448, IEC 61508, MIL-STD-882E

Ensuring compliance for Enhanced system Integrity.

We are providing a comprehensive consulting services for functional safety compliance with ISO 26262, ARP 4754/4761, ISO 21434, ISO 21448, IEC 61508, MIL-STD-882E.

1. Risk Assessment and Hazard Analysis: Identifying and mitigating potential risks early in the development process.
2. Safety Concept and Design: Creating a detailed safety concept and design that meets your specific requirements.
3. Verification and Validation: Conducting comprehensive verification and validation to ensure the system performs safely under all conditions.
4. Certification Support: Assisting with the certification process to ensure compliance with relevant safety standards.

HARA is a fundamental process in functional safety, involving the systematic identification of potential hazards, analysis of their causes and effects, and assessment of associated risks to safety-critical systems or products. This critical process ensures that safety-critical systems meet the required safety objectives and standards.

Our solutions for Safety Goals and Requirements (SG & SR) modelling comply with ISO 26262. SG & SR modelling is a structured approach used throughout the development lifecycle of safety-critical systems. Safety goals represent high-level objectives related to system safety, such as minimizing the risk of harm to users, passengers, or the environment. These goals, derived from safety standards and hazard analysis, are complemented by safety requirements, which detail the functionality, performance, and constraints necessary to ensure safe operation. Safety requirements encompass various aspects such as functional safety, hardware safety, software safety, and operational safety.

Reliability prediction for HW E/E components involves defining the failure modes of the component, distribution of the failure modes, and failure rate calculation using different failure rate catalogs tailored for various industries.

FMEA is a systematic approach to identify and mitigate potential failure modes within a system, product, or process, enhancing reliability and safety. FMECA goes a step further by assigning criticality rankings based on factors such as severity, system mission or function, and the likelihood of failure occurrence.

We provide advanced solutions for both qualitative and quantitative Fault Tree Analysis (FTA) in accordance with all safety standards. FTA is a deductive technique used to identify and analyze potential causes of system failures. It involves constructing a graphical representation called a fault tree to model relationships between various events and their potential outcomes, using logical gates such as AND, OR, and NOT to trace intermediate events leading to the top event.

Our solutions encompass Failure Modes, Effects, and Diagnostic Analysis (FMEDA) in compliance with ISO 26262. FMEDA is a systematic and quantitative method used to assess the reliability of complex systems. This analysis involves identifying potential failure modes, understanding their effects on system performance, and evaluating the effectiveness of diagnostic measures using SPFM and LFM techniques.

RBD is a graphical representation used to model and analyze the reliability of complex systems by depicting relationships between components or subsystems and their contribution to overall system reliability. The blocks are connected in series, parallel, or a combination of both, reflecting the system’s configuration and inter-component relationships.

Our services include Dependent Failure Analysis (DFA) in compliance with ISO 26262. DFA assesses the potential for failures within a system that may be influenced by other failures. This analysis helps engineers identify critical failure modes, assess their impact on system reliability and safety, and implement appropriate mitigation measures, ensuring the robustness and reliability of complex systems by addressing potential failure scenarios and their interdependencies proactively.

Applications

safety
Vertical Solutions
In the automotive industry, Ansys medini analyze is used to perform safety analyses for E/E and software systems, ensuring compliance with standards such as ISO 26262 for safe vehicle operation. In the aerospace sector, the tool assists with ARP 4761 and MIL-STD-882E compliance, enabling engineers to conduct thorough risk assessments and guarantee the safety of complex avionics and control systems. Its model-based approach enhances collaboration and efficiency across both industries.
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security
Automotive Security
Based on ISO/SAE 21434 compliance by enabling thorough cybersecurity risk assessments in automotive E/E systems. It offers model-based tools for managing threats, vulnerabilities, and implementing safeguards to ensure vehicle safety.
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safety
Safety Systems
Products are designed to support the safety assurance of complex systems in critical industries like automotive, aerospace, and rail. It offers advanced tools for model-based safety analysis, helping engineers identify potential hazards and mitigate risks early in the design process. Safe Systems ensures compliance with industry standards such as ISO 26262,DO178, ARP4754/4761, IEC 61508 etc. by providing comprehensive requirements traceability, safety verification, and validation. Its integrated approach streamlines safety lifecycle management, improving collaboration across disciplines and delivering reliable, high-integrity systems.
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