Article(id=1308462969306764026, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1308462963522823142, articleNumber=null, orderNo=null, doi=10.20104/j.cnki.1674-6546.20250030, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=1744041600000, revisedDateStr=2025-04-08, acceptedDate=null, acceptedDateStr=null, onlineDate=1789891481949, onlineDateStr=2026-09-20, pubDate=1784044800000, pubDateStr=2026-07-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789891481949, onlineIssueDateStr=2026-09-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789891481949, creator=13701087609, updateTime=1789891481949, updator=13701087609, issue=Issue{id=1308462963522823142, tenantId=1146029695717560320, journalId=1189918454225211397, year='2026', volume='', issue='7', pageStart='1', pageEnd='48', issueExtLink='null', onlineDate='null', pubDate='1784044800000', pubDateStr='2026-07-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1789891480570, creator='13701087609', updateTime=1789892910062, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1308468959309751193, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1308462963522823142, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1308468959309751194, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1308462963522823142, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=9, endPage=15, ext={EN=ArticleExt(id=1308462969516479227, articleId=1308462969306764026, tenantId=1146029695717560320, journalId=1189918454225211397, language=EN, title=Research on the Improvement of Electrical Safety in Rear Impacts of New Energy Vehicles for American Collision Standards, columnId=1308462964089054183, journalTitle=Automotive Engineer, columnName=Special Topic on Automotive Passive Safety Technology, runingTitle=null, highlight=null, articleAbstract=

To address the high-voltage electrical safety risk of a hybrid SUV during 80 km/h rear impacts as specified by FMVSS 305, component-level investigations are conducted, and vehicle collision structure optimization is performed. At the component level, through designing two types of component tests, quasi-static extrusion and dynamic impact, the ultimate bearing capacity of Intelligent Power System (IPS) is obtained. At the level of vehicle collision structure optimization, by optimizing the rear impact force transmission path and improving the IPS collision mode, designing the rear longitudinal beam structure to bend upward makes IPS be subjected to planar extrusion. The simulated IPS collision force decreases by 64% from 137 kN to 49 kN, which is less than its ultimate bearing capacity.

, authors=Heng Liu, Wei Li, Fanbo Zeng, Shuai Zhao, Zhitian Yang, authorsList=Heng Liu, Wei Li, Fanbo Zeng, Shuai Zhao, Zhitian Yang, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1308462969856217852, articleId=1308462969306764026, tenantId=1146029695717560320, journalId=1189918454225211397, language=CN, title=面向美国标准的新能源汽车后碰撞电安全改进研究, columnId=1308462964240049129, journalTitle=汽车工程师, columnName=汽车被动安全技术专题, runingTitle=null, highlight=null, articleAbstract=

为降低新能源汽车在后碰撞中的高压电安全风险,针对某混合动力SUV车型在FMVSS 305规定的80 km/h车速工况下的后碰撞高压电安全风险问题,在零部件层面,通过设计准静态挤压和动态冲击零部件试验,获得智能电力系统(IPS)模块不同载荷类型下的极限承载力,在整车结构优化层面,通过后碰撞传力路径优化、IPS模块碰撞模式改进,设计了后纵梁结构向上折弯诱导策略使IPS模块受平面挤压,仿真结果表明,优化后IPS模块碰撞力由137 kN下降至49 kN,降低64%,低于其极限承载力。

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面向美国标准的新能源汽车后碰撞电安全改进研究
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刘衡 , 李伟 , 曾繁波 , 赵帅 , 杨志添
汽车工程师 | 汽车被动安全技术专题 2026,(7): 9-15
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汽车工程师 |汽车被动安全技术专题 2026 , (7) : 9 -15
面向美国标准的新能源汽车后碰撞电安全改进研究
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刘衡, 李伟, 曾繁波, 赵帅, 杨志添
作者信息
  • 广州汽车集团股份有限公司汽车工程研究院,广州 511434
Research on the Improvement of Electrical Safety in Rear Impacts of New Energy Vehicles for American Collision Standards
Heng Liu, Wei Li, Fanbo Zeng, Shuai Zhao, Zhitian Yang
Affiliations
  • Automotive Engineering Institute, Guangzhou Automobile Group Co., Ltd., Guangzhou 511434
出版时间: 2026-07-15 doi: 10.20104/j.cnki.1674-6546.20250030
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为降低新能源汽车在后碰撞中的高压电安全风险,针对某混合动力SUV车型在FMVSS 305规定的80 km/h车速工况下的后碰撞高压电安全风险问题,在零部件层面,通过设计准静态挤压和动态冲击零部件试验,获得智能电力系统(IPS)模块不同载荷类型下的极限承载力,在整车结构优化层面,通过后碰撞传力路径优化、IPS模块碰撞模式改进,设计了后纵梁结构向上折弯诱导策略使IPS模块受平面挤压,仿真结果表明,优化后IPS模块碰撞力由137 kN下降至49 kN,降低64%,低于其极限承载力。

后碰撞  /  电安全  /  美国标准  /  智能电力系统  /  极限承载力

To address the high-voltage electrical safety risk of a hybrid SUV during 80 km/h rear impacts as specified by FMVSS 305, component-level investigations are conducted, and vehicle collision structure optimization is performed. At the component level, through designing two types of component tests, quasi-static extrusion and dynamic impact, the ultimate bearing capacity of Intelligent Power System (IPS) is obtained. At the level of vehicle collision structure optimization, by optimizing the rear impact force transmission path and improving the IPS collision mode, designing the rear longitudinal beam structure to bend upward makes IPS be subjected to planar extrusion. The simulated IPS collision force decreases by 64% from 137 kN to 49 kN, which is less than its ultimate bearing capacity.

Rear impact  /  Electrical safety  /  American standard  /  Intelligent Power System (IPS)  /  Ultimate bearing capacity
刘衡, 李伟, 曾繁波, 赵帅, 杨志添. 面向美国标准的新能源汽车后碰撞电安全改进研究. 汽车工程师, 2026 , (7) : 9 -15 . DOI: 10.20104/j.cnki.1674-6546.20250030
Heng Liu, Wei Li, Fanbo Zeng, Shuai Zhao, Zhitian Yang. Research on the Improvement of Electrical Safety in Rear Impacts of New Energy Vehicles for American Collision Standards[J]. Automotive Engineer, 2026 , (7) : 9 -15 . DOI: 10.20104/j.cnki.1674-6546.20250030

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doi: 10.20104/j.cnki.1674-6546.20250030
  • 首发时间:2026-09-20
  • 出版时间:2026-07-15
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  • 修回日期:2025-04-08
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    广州汽车集团股份有限公司汽车工程研究院,广州 511434
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2种不同金属材料的力学参数
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属
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种数
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species
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species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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