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Model-based dynamic reliability engineering for hybrid electric vehicle design

机译:基于模型的混合动力汽车动态可靠性工程设计

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The paper analyzes the tradeoff between battery life and functional reliability for a hybrid electrical vehicle design study. Reliability of complex technical systems often depends on their dynamic behavior. Petri nets have significant advantages over classic static models of reliable systems in describing such systems, and an international standard IEC 62551 has been published recently (Analysis techniques for dependability - Petri net techniques). Simulation is the only possible method to derive reliability results for realistic systems that have a large state space or are not Markovian (memoryless). The paper shows how the very long run times for highly reliable systems can be sped up significantly by using the RESTART-method for stochastic Petri nets and its implementation in the TimeNET software tool.
机译:本文分析了混合动力汽车设计研究中电池寿命与功能可靠性之间的折衷。复杂技术系统的可靠性通常取决于其动态行为。在描述此类系统时,Petri网具有优于可靠系统的经典静态模型的显着优势,并且最近已发布了国际标准IEC 62551(可靠性分析技术-Petri网技术)。对于具有较大状态空间或非Markovian(无内存)的现实系统,仿真是获得可靠性结果的唯一可能方法。本文显示了如何通过使用随机Petri网的RESTART方法及其在TimeNET软件工具中的实现,来大大缩短高度可靠的系统的非常长的运行时间。

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