Article(id=1157001743272861910, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1157001740768858346, articleNumber=null, orderNo=null, doi=10.19562/j.chinasae.qcgc.2024.07.013, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1712592000000, receivedDateStr=2024-04-09, revisedDate=1716134400000, revisedDateStr=2024-05-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1753780311649, onlineDateStr=2025-07-29, pubDate=1721836800000, pubDateStr=2024-07-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753780311649, onlineIssueDateStr=2025-07-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753780311649, creator=13701087609, updateTime=1753780311649, updator=13701087609, issue=Issue{id=1157001740768858346, tenantId=1146029695717560320, journalId=1146120084050784272, year='2024', volume='46', issue='7', pageStart='1137', pageEnd='1334', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=0, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1753780311052, creator=13701087609, updateTime=1756792480363, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1169635694612853253, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1157001740768858346, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1169635694612853254, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1157001740768858346, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1259, endPage=1272, ext={EN=ArticleExt(id=1157001744233357531, articleId=1157001743272861910, tenantId=1146029695717560320, journalId=1146120084050784272, language=EN, title=Real-Time Online Prediction of Transient Temperature Field for Electric Drive Assembly with Multi-physics Coupling and Data-Driven Fusion Modeling, columnId=null, journalTitle=Automotive Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
It is crucial to develop a lightweight real-time online temperature prediction model for electric drive assembly (EDA) to effectively monitor its future abnormal temperature state in advance and ensure vehicle safety. Based on multi-physics coupling and data-driven fusion modeling, this paper proposes an online prediction method for the transient temperature field of EDA. Firstly, a multi-physical coupling finite element model of EDA electric-magnetic-thermal-flow multi-physics coupling is established, and the accuracy of the model is verified by bench test. Secondly, several transient temperature field datasets under normal working conditions are generated via multi-physical field coupling model for subsequent proxy model verification. Then, combined with the finite element model to obtain the simplified thermal network topology and the graph convolutional neural network, a relational spatial-temporal graph convolutional neural network prediction model driven by model and data is proposed. Finally, the effectiveness and real-time performance of the proposed temperature prediction model are verified by offline simulation and online test under different ambient temperatures and working conditions. Analysis results on the measured offline dataset show that the global prediction error and average absolute error are 4.4 and 1.25 ℃, reduced by 17.3%, 28.1%, 5.3% and 29.3%, respectively, compared with the conventional temporal graph convolutional neural network and gated recurrent unit. Meanwhile, the online prediction results of the bench are also very close to the real measured values, with the global prediction error and average absolute error of 3.99 and 0.66 ℃. In conclusion, the proposed real-time on-line temperature prediction method can accurately predict the real temperature change of EDA.
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开发电驱动总成(EDA)轻量级实时在线温度精确预测方法,对于提前有效监测其未来异常温度状态,确保车辆行驶安全至关重要。基于多物理场耦合与数据驱动融合建模,提出了EDA瞬态温度场在线预测方法。首先,建立EDA电-磁-热-流多物理场耦合有限元模型,并通过台架试验验证该模型准确性;其次,采用有限元模型生成了几种常规工况下的瞬态温度场数据集,以用于后续代理模型的测试验证;然后,结合有限元模型获取简化的热网络拓扑和图卷积神经网络,提出一种模型与数据双轮驱动建模的EDA时空关系图卷积神经网络预测模型;最后,通过不同工况下的离线仿真对比分析和台架在线测试,对所提出的温度预测模型进行有效性和实时性验证。实测离线数据集上的分析结果表明:全局预测误差和平均绝对误差分别为4.4 和1.25 ℃,相较于常规时序图卷积神经网络和门控递归单元方法分别降低17.3%、28.1%和5.3%、29.3%。台架在线预测结果也与真实测量值十分接近,其全局预测误差和平均绝对误差为3.99和0.66 ℃。总之,所提出的实时在线温度预测方法可以准确预测EDA真实温度变化。
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EDA内MG2电机结构示意图, figureFileSmall=WkYD5/gLfV5RUPhZ2hSWgw==, figureFileBig=Tn3NJv/JYHmwXja++HDI0w==, tableContent=null), ArticleFig(id=1157002014526890804, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=HOU5WYV1EH5XxfY7OBpfUg==, figureFileBig=ccr/HOAkoUc4KDhV3xYHMQ==, tableContent=null), ArticleFig(id=1157002014581416759, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=CN, label=图4, caption=
1 496 r/min时电机反电动势测量值和电磁模型预测值对比, figureFileSmall=HOU5WYV1EH5XxfY7OBpfUg==, figureFileBig=ccr/HOAkoUc4KDhV3xYHMQ==, tableContent=null), ArticleFig(id=1157002014640137017, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=usJQab1U1hUjwIqEFPQlHA==, figureFileBig=TqkmRf1ZTaTtOweCQrZZSQ==, tableContent=null), ArticleFig(id=1157002014707245883, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=CN, label=图5, caption=
EDA电-磁-热-流多物理场耦合模型, figureFileSmall=usJQab1U1hUjwIqEFPQlHA==, figureFileBig=TqkmRf1ZTaTtOweCQrZZSQ==, tableContent=null), ArticleFig(id=1157002014753383229, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=rCiANO+3wECEDZZ+CPeEgQ==, figureFileBig=fmJrsLCcwaExEQPdTCFwsA==, tableContent=null), ArticleFig(id=1157002014803714879, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=CN, label=图6, caption=
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测试工况和电机多场耦合有限元仿真与实际测试电流、转矩、定子绕组、润滑油和壳体温度对比(环境温度21 ℃), figureFileSmall=Xo3xAU1o+qG2euln6P+rFA==, figureFileBig=kQetMyEnxTmFtjlTfXJCmw==, tableContent=null), ArticleFig(id=1157002015051178826, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=Z8qivFgm/tNciEcIzDHIVA==, figureFileBig=41vZlkbG2PEoAMEICbCphQ==, tableContent=null), ArticleFig(id=1157002015109899086, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=CN, label=图9, caption=
详细的集总参数热网络模型瞬态温度场损耗及温度示意图, figureFileSmall=Z8qivFgm/tNciEcIzDHIVA==, figureFileBig=41vZlkbG2PEoAMEICbCphQ==, tableContent=null), ArticleFig(id=1157002015260894035, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=vT8U8/L1Pxw0TrLjwQf7Qw==, figureFileBig=ilvixV50Sr1YSAvJYH15tA==, tableContent=null), ArticleFig(id=1157002015374140249, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=CN, label=图10, caption=
EDA用油冷电机10节点热网络模型, figureFileSmall=vT8U8/L1Pxw0TrLjwQf7Qw==, figureFileBig=ilvixV50Sr1YSAvJYH15tA==, tableContent=null), ArticleFig(id=1157002015474803548, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=IKY+OX31Grfzyb+Cwzy3aw==, figureFileBig=/obeGXmQhP7fjeafHtTdcw==, tableContent=null), ArticleFig(id=1157002015529329503, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=CN, label=图11, caption=
OLS-RGCN的瞬态温度场预测框架, figureFileSmall=IKY+OX31Grfzyb+Cwzy3aw==, figureFileBig=/obeGXmQhP7fjeafHtTdcw==, tableContent=null), ArticleFig(id=1157002015583855459, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=2dCl93BVFCtX9XClL+Umew==, figureFileBig=QCyiE8uyDi0gzb9s/cYEAQ==, tableContent=null), ArticleFig(id=1157002015655158630, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=CN, label=图12, caption=
时序预测模型GRU, figureFileSmall=2dCl93BVFCtX9XClL+Umew==, figureFileBig=QCyiE8uyDi0gzb9s/cYEAQ==, tableContent=null), ArticleFig(id=1157002015709684587, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=rajQmbVyJrdGd9CbRCxwuw==, figureFileBig=4bikXiiHab9bqIm/CTBuRQ==, tableContent=null), ArticleFig(id=1157002015801959275, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=CN, label=图13, caption=
预测时间为10 s时温度预测误差对比箱线图, figureFileSmall=rajQmbVyJrdGd9CbRCxwuw==, figureFileBig=4bikXiiHab9bqIm/CTBuRQ==, tableContent=null), ArticleFig(id=1157002015848096620, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=OIE28JBjCDsRnLaAoX5R+g==, figureFileBig=lYkvzXNq3PmDv9z9TUdQQQ==, tableContent=null), ArticleFig(id=1157002015902622574, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=CN, label=图14, caption=
温度在线预测试验方案, figureFileSmall=OIE28JBjCDsRnLaAoX5R+g==, figureFileBig=lYkvzXNq3PmDv9z9TUdQQQ==, tableContent=null), ArticleFig(id=1157002015957148528, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=yec+7mCvpSp301T/AXbnTg==, figureFileBig=SrCHBoY2eU0d/mV40RQcEA==, tableContent=null), ArticleFig(id=1157002016024257394, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=CN, label=图15, caption=
测试工况(环境温度为28 ℃), figureFileSmall=yec+7mCvpSp301T/AXbnTg==, figureFileBig=SrCHBoY2eU0d/mV40RQcEA==, tableContent=null), ArticleFig(id=1157002016078783347, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=5gKuvLql/t7xiR9k4RMTAg==, figureFileBig=zUQosrsl6U5EpOdoVuJdMg==, tableContent=null), ArticleFig(id=1157002016221389686, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=CN, label=图16, caption=
不同方法基于2.5 s历史数据预测未来10 s内4个关键节点的温度跟踪效果比较, figureFileSmall=5gKuvLql/t7xiR9k4RMTAg==, figureFileBig=zUQosrsl6U5EpOdoVuJdMg==, tableContent=null), ArticleFig(id=1157002016309470073, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=tMUFQio/Kw/QUP3EEX/tfA==, figureFileBig=Hjb5+zaXWbYMeasQfyN8SA==, tableContent=null), ArticleFig(id=1157002016376578939, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=CN, label=图17, caption=
不同方法基于2.5 s历史数据预测未来10 s内4个关键节点的温度预测误差比较, figureFileSmall=tMUFQio/Kw/QUP3EEX/tfA==, figureFileBig=Hjb5+zaXWbYMeasQfyN8SA==, tableContent=null), ArticleFig(id=1157002016431104893, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=vLuR4Qc/w5NVc0B5WdTAOA==, figureFileBig=Pj9k6hBz0BaiNnq71dpLzw==, tableContent=null), ArticleFig(id=1157002016481436546, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=CN, label=图18, caption=
温度在线预测试验方案, figureFileSmall=vLuR4Qc/w5NVc0B5WdTAOA==, figureFileBig=Pj9k6hBz0BaiNnq71dpLzw==, tableContent=null), ArticleFig(id=1157002016552739715, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| 永磁体极对数P 2 | 12 |
| 定子槽数Sn | 72 |
| 定子槽口宽度b 0/mm | 4.58 |
| 永磁体厚度h pm/mm | 4 |
| 永磁体宽度w pm/mm | 22 |
| 隔磁桥厚度T web/mm | 22 |
| 气隙长度L gap/mm | 1.1 |
| 转子轴向长度L r/mm | 94 |
| 定子内半径R sin/mm | 203 |
| 定子外半径R sout/mm | 266 |
| 定子铁芯轴向长度L s/mm | 94 |
| 定子槽深d slot/mm | 22.2 |
| 定子齿宽w t/mm | 4.15 |
), ArticleFig(id=1157002016611459972, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=CN, label=表1, caption=
MG2电机设计参数
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| 参数 | 数值 |
| 永磁体极对数P 2 | 12 |
| 定子槽数Sn | 72 |
| 定子槽口宽度b 0/mm | 4.58 |
| 永磁体厚度h pm/mm | 4 |
| 永磁体宽度w pm/mm | 22 |
| 隔磁桥厚度T web/mm | 22 |
| 气隙长度L gap/mm | 1.1 |
| 转子轴向长度L r/mm | 94 |
| 定子内半径R sin/mm | 203 |
| 定子外半径R sout/mm | 266 |
| 定子铁芯轴向长度L s/mm | 94 |
| 定子槽深d slot/mm | 22.2 |
| 定子齿宽w t/mm | 4.15 |
), ArticleFig(id=1157002016674374534, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | MAE/℃ | l err/℃ | 100个周期下平均 训练时间/s | 平均测试 时间/s |
| OLS-GRU | 1.77 | 6.12 | 368 | 0.4 |
| OLS-TGCN | 1.32 | 5.32 | 497 | 0.5 |
| OLS-RGCN | 1.25 | 4.40 | 481 | 0.45 |
| FEM | 1.35 | 3.49 | | 14 077 |
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4种方法的预测性能比较
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| 方法 | MAE/℃ | l err/℃ | 100个周期下平均 训练时间/s | 平均测试 时间/s |
| OLS-GRU | 1.77 | 6.12 | 368 | 0.4 |
| OLS-TGCN | 1.32 | 5.32 | 497 | 0.5 |
| OLS-RGCN | 1.25 | 4.40 | 481 | 0.45 |
| FEM | 1.35 | 3.49 | | 14 077 |
), ArticleFig(id=1157002016846341003, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001743272861910, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | MAE | l err最大 值/℃ | 单次预测平均 计算时间/ms |
| μ innerair | μ oil | μ sw | μ swair |
| 离线OLS-RGCN | 0.28 | 0.41 | 0.30 | 0.35 | 3.94 | 450 |
| 在线OLS-RGCN | 0.32 | 0.66 | 0.35 | 0.37 | 3.99 | 129 |
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离线与在线OLI-RGCN方法的预测性能比较
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| 方法 | MAE | l err最大 值/℃ | 单次预测平均 计算时间/ms |
| μ innerair | μ oil | μ sw | μ swair |
| 离线OLS-RGCN | 0.28 | 0.41 | 0.30 | 0.35 | 3.94 | 450 |
| 在线OLS-RGCN | 0.32 | 0.66 | 0.35 | 0.37 | 3.99 | 129 |
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