针对车辆燃料电池系统的面向功能安全的危险分析和风险评估
Ke Song1,2, Ruili Jia1,2, Pengyu Huang1,2
1School of Automotive Studies, Tongji University, Shanghai 201804, China.
Heliyon
|January 21, 2025
概括
本研究引入了燃料电池车辆的功能安全方法,减少泄漏风险. 一个优化的系统设计大大减少了泄漏危险和系统不可用性.
科学领域:
- 汽车工程 汽车工程
- 化学工程是化学工程的重要组成部分.
- 安全工程安全工程
背景情况:
- 功能安全对于现代汽车设计至关重要.
- 车辆燃料电池系统面临着独特的安全挑战,特别是有关处理的问题.
- 对于先进的汽车技术,现有的安全评估需要加强.
研究的目的:
- 开发和应用车辆燃料电池系统的危险分析和定量风险评估 (QRA) 方法.
- 为了识别和减轻与燃料电池车辆运行相关的潜在危险.
- 优化燃料电池系统架构,以提高安全性.
主要方法:
- 用汽车通用危险清单来识别危险.
- 雇员危险和可操作性 (HAZOP) 研究以确定故障模式和影响.
- 应用定量风险评估 (QRA) 来评估风险和后果.
- 实现了一个冗余的设计,以优化系统架构.
主要成果:
- 在车辆燃料电池系统中确定了关键危险.
- 使用QRA.量化风险和后果.
- 燃料电池系统的计算故障频率和不可用性.
- 通过优化架构,泄漏风险不可用性减少了94.4%,故障频率减少了36.8%.
结论:
- 拟议的功能安全方法有效地解决燃料电池车辆中的危险问题.
- 优化的系统架构显著提高了安全性.
- 该研究为改善未来燃料电池汽车的安全性和可靠性提供了宝贵的见解.
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