一种新能源汽车整车底部针刺热扩散安全量化评价方法
By constructing a closed-loop evaluation system covering the entire process of needle puncture triggering, hazard monitoring, escape verification, and multi-dimensional testing, the technical shortcomings of bottom needle puncture thermal runaway assessment for new energy vehicles have been addressed. This system enables dynamic risk characteristic assessment of the thermal runaway process and improves the accuracy and effectiveness of the vehicle's thermal safety protection design.
CN122237968BActive Publication Date: 2026-07-17CHONGQING VEHICLE TEST & RES INST CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING VEHICLE TEST & RES INST CO LTD
- Filing Date
- 2026-05-25
- Publication Date
- 2026-07-17
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Figure CN122237968B_ABST
Abstract
本发明涉及新能源车辆火灾安全检测技术领域，公开了一种新能源汽车整车底部针刺热扩散安全量化评价方法，包括：对新能源汽车进行试验环境配置与工况预处理，得到符合试验标准的待测试车辆；对待测试车辆的动力电池包进行靶电芯定位与针刺点位匹配，得到针刺触发试验点位；采用针刺设备对针刺触发试验点位进行底部针刺操作，得到针刺过程实时数据；对针刺过程实时数据进行电芯状态监测，直至靶电芯触发热失控，得到热失控触发基准数据；对热失控触发基准数据进行时序对齐与格式标准化处理，得到针刺触发基础数据集；基于针刺触发基础数据集，在热失控后监测整车危险状态并执行对应车门开关验证，获取整车逃生安全验证数据。
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Citation Information
Patent Citations
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