Safety Verification Utilizing Model-based Development for Safety Critical Cyber-Physical Systems

• Item type: Journal(1)
• 公開日: 2017-08-15
• タイトル: Safety Verification Utilizing Model-based Development for Safety Critical Cyber-Physical Systems
• タイトル / 言語: en
• タイトル: Safety Verification Utilizing Model-based Development for Safety Critical Cyber-Physical Systems
• 言語: eng
• キーワード / 主題Scheme: Other
• キーワード / 主題: [特集：組込みシステム工学] symbolic execution, model-based development, model transformation, bond-graph, signal-flow graph, automotive cyber-physical systems
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_6501
• 資源タイプ: journal article
• 著者所属: Hitachi Ltd.
• 著者所属: Technical University of Darmstadt
• 著者所属: Technical University of Darmstadt
• 著者所属: Technical University of Darmstadt
• 著者所属: Technical University of Darmstadt
• 著者所属(英): en
• 著者所属(英): Hitachi Ltd.
• 著者所属(英): en
• 著者所属(英): Technical University of Darmstadt
• 著者所属(英): en
• 著者所属(英): Technical University of Darmstadt
• 著者所属(英): en
• 著者所属(英): Technical University of Darmstadt
• 著者所属(英): en
• 著者所属(英): Technical University of Darmstadt
• 著者名: Tasuku, Ishigooka; Habib, Saissi; Thorsten, Piper; Stefan, Winter; Neeraj, Suri
• 著者名(英): Tasuku, Ishigooka; Habib, Saissi; Thorsten, Piper; Stefan, Winter; Neeraj, Suri
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: The application of cyber-physical systems (CPSs) in safety-critical application domain requires rigorous verification of their functional correctness and safety-relevant properties. We propose a practical verification process which enables to conduct safety verification of safety critical CPSs. The verification process consists of (a) a system model construction method, which generates a system model by combining software described in C and plant model code reused from model-based development, (b) a model transformation method, which transforms the plant models including differential algebraic equations (DAE) to approximate models without DAE to reduce verification complexity induced by DAE solver execution, (c) a model simplification framework, which enables the simplification of bond-graph plant models using domain-knowledge-based replacement of complex model components for further verification overhead reductions, and (d) a formal verification based on symbolic execution. We implemented the proposed methods and framework, and successfully applied the proposed verification process for safety verification of automotive brake control systems. The results of the study demonstrate that the verification detects a complex failure condition in a real-world brake control system from the generated system model and that the automated model transformations of the CPS models yield significant verification complexity reductions without impairing the ability to detect unsafe behavior.; ------------------------------; This is a preprint of an article intended for publication Journal of; Information Processing(JIP). This preprint should not be cited. This; article should be cited as: Journal of Information Processing Vol.25(2017) (online); DOI http://dx.doi.org/10.2197/ipsjjip.25.797; ------------------------------
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: The application of cyber-physical systems (CPSs) in safety-critical application domain requires rigorous verification of their functional correctness and safety-relevant properties. We propose a practical verification process which enables to conduct safety verification of safety critical CPSs. The verification process consists of (a) a system model construction method, which generates a system model by combining software described in C and plant model code reused from model-based development, (b) a model transformation method, which transforms the plant models including differential algebraic equations (DAE) to approximate models without DAE to reduce verification complexity induced by DAE solver execution, (c) a model simplification framework, which enables the simplification of bond-graph plant models using domain-knowledge-based replacement of complex model components for further verification overhead reductions, and (d) a formal verification based on symbolic execution. We implemented the proposed methods and framework, and successfully applied the proposed verification process for safety verification of automotive brake control systems. The results of the study demonstrate that the verification detects a complex failure condition in a real-world brake control system from the generated system model and that the automated model transformations of the CPS models yield significant verification complexity reductions without impairing the ability to detect unsafe behavior.; ------------------------------; This is a preprint of an article intended for publication Journal of; Information Processing(JIP). This preprint should not be cited. This; article should be cited as: Journal of Information Processing Vol.25(2017) (online); DOI http://dx.doi.org/10.2197/ipsjjip.25.797; ------------------------------
• 書誌レコードID / 収録物識別子タイプ: NCID
• 書誌レコードID / 収録物識別子: AN00116647
• 書誌情報: 情報処理学会論文誌; 巻 58, 号 8, 発行日 2017-08-15
• ISSN / 収録物識別子タイプ: ISSN
• ISSN / 収録物識別子: 1882-7764