Article(id=1197492489625059614, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1197492487066530363, articleNumber=null, orderNo=null, doi=10.19620/j.cnki.1000-3703.20240594, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=1726761600000, revisedDateStr=2024-09-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1763434057861, onlineDateStr=2025-11-18, pubDate=1742745600000, pubDateStr=2025-03-24, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763434057861, onlineIssueDateStr=2025-11-18, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763434057861, creator=13701087609, updateTime=1763434057861, updator=13701087609, issue=Issue{id=1197492487066530363, tenantId=1146029695717560320, journalId=1189621681917173762, year='2025', volume='', issue='3', pageStart='1', pageEnd='62', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763434057251, creator=13701087609, updateTime=1763434367830, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1197493789779603575, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1197492487066530363, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1197493789779603576, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1197492487066530363, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=46, endPage=55, ext={EN=ArticleExt(id=1197492489801220384, articleId=1197492489625059614, tenantId=1146029695717560320, journalId=1189621681917173762, language=EN, title=Dynamic Modeling and Model Predictive Control of Distributed Electric Drive Bearing Platforms, columnId=1200009531011985931, journalTitle=Automobile Technology, columnName=Special Topic on Multimodal Information Monitoring and Recognition Technologies for Human Factors in Intelligent Driving, runingTitle=null, highlight=null, articleAbstract=
Aiming at the issues of low high-speed tracking accuracy and weak robustness in the trajectory tracking control of distributed electric drive bearing platforms, a hierarchical lateral motion control strategy based on desired front wheel angle tracking is designed. Taking the distributed electric drive bearing platform as the research object, a comprehensive dynamic model integrating rubber wheels, vehicle body, and electric drive modules is constructed based on the dynamic analysis of each subsystem and the interaction relationship between the wheels and the ground. By constructing a hierarchical motion control strategy with upper-level Model Predictive Control (MPC) trajectory tracking and lower-level steering motor angle control, high-precision control of the platform’s lateral position can be achieved. A holistic dynamic simulation model of the bearing platform is built using Simulink. The simulation results show that the lateral motion control strategy designed in this research can achieve multi-scenario trajectory tracking with high precision at various speeds. Compared with the sliding mode controller, the control accuracy of this strategy is improved by 33%, and the control stability is significantly enhanced.
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针对分布式电驱动承载平台轨迹跟踪控制存在高速跟踪精度低、鲁棒性弱等问题,设计了基于期望前轮转角跟踪的分层式横向运动控制策略。以分布式电驱动承载平台为研究对象,基于各子系统的动力学分析和轮地作用关系分析,构建了完整的胶轮、车体、电驱等模块的一体化动力学模型。通过构建上层模型预测控制(MPC)轨迹跟踪和下层转向电机转角控制的分层式运动控制策略,可实现承载平台横向位置的高精度控制。基于Simulink搭建承载平台整体动力学仿真模型,仿真结果表明:设计的横向运动控制策略在多级速度下均能高精度实现多场景轨迹跟踪;与滑模控制器相比,其控制精度提升了33%,控制稳定性显著提升。
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换道工况轨迹跟踪结果对比(40 km/h), figureFileSmall=o42KQif3POAXcbmTTr+58w==, figureFileBig=jOBh40xY/7d5YbM8aDOP/Q==, tableContent=null), ArticleFig(id=1200009549680837210, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1197492489625059614, language=EN, label=null, caption=null, figureFileSmall=BVgy7E5s8tPFb7TBirPC6Q==, figureFileBig=JNoK2EXuM7zzxx2iWii/TA==, tableContent=null), ArticleFig(id=1200009549777306206, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1197492489625059614, language=CN, label=图9, caption=
换道工况轨迹跟踪结果对比(60 km/h), figureFileSmall=BVgy7E5s8tPFb7TBirPC6Q==, figureFileBig=JNoK2EXuM7zzxx2iWii/TA==, tableContent=null), ArticleFig(id=1200009550016381538, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1197492489625059614, language=EN, label=null, caption=null, figureFileSmall=ahERj3Pf7hVmf3zLfWYq0Q==, figureFileBig=ZqJWFWKAX+qsQ7BbtoE1VA==, tableContent=null), ArticleFig(id=1200009550171570792, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1197492489625059614, language=CN, label=图10, caption=
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双移线工况轨迹跟踪结果对比(60 km/h), figureFileSmall=jF8hPQcHjnV99hlva21GoA==, figureFileBig=cnl56VCGut9JoQJZoqa7kQ==, tableContent=null), ArticleFig(id=1200009550809105012, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1197492489625059614, language=EN, label=null, caption=null, figureFileSmall=goA0gU95JnTL+GpzkVAnwg==, figureFileBig=zU+4Y+zsardFnTdKlrIYwA==, tableContent=null), ArticleFig(id=1200009551945761400, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1197492489625059614, language=CN, label=图13, caption=
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| 电机参数 | 电机类型 |
| 驱动电机 | 转向电机 |
| 额定电压/V | 36 | 48 |
| 空载转速/r·min-1 | 5 010 | 7 590 |
| 空载电流/mA | 493 | 68.6 |
| 额定转速/r·min-1 | 3 920 | 7 000 |
| 额定转矩/N·m | 1 040 | 187 |
| 额定电流/A | 13.2 | 3.17 |
| 转矩常数/N·m·A-1 | 68 | 60.3 |
| 转速常数/r·min-1·V-1 | 140 | 158 |
| 转子转动惯量/g·cm2 | 170 | 137 |
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电机性能参数
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| 电机参数 | 电机类型 |
| 驱动电机 | 转向电机 |
| 额定电压/V | 36 | 48 |
| 空载转速/r·min-1 | 5 010 | 7 590 |
| 空载电流/mA | 493 | 68.6 |
| 额定转速/r·min-1 | 3 920 | 7 000 |
| 额定转矩/N·m | 1 040 | 187 |
| 额定电流/A | 13.2 | 3.17 |
| 转矩常数/N·m·A-1 | 68 | 60.3 |
| 转速常数/r·min-1·V-1 | 140 | 158 |
| 转子转动惯量/g·cm2 | 170 | 137 |
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| 平台参数 | 数值 |
| 平台质量 /kg | 56 |
| 质心距离前轴距离 /m | 0.279 |
| 质心距离后轴距离 /m | 0.279 |
| 绕Z轴转动惯量Iz/kg·m2 | 10 |
| 前轮侧偏刚度 /N·rad-1 | -12 000 |
| 后轮侧偏刚度 /N·rad-1 | -12 000 |
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仿真平台参数
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| 平台参数 | 数值 |
| 平台质量 /kg | 56 |
| 质心距离前轴距离 /m | 0.279 |
| 质心距离后轴距离 /m | 0.279 |
| 绕Z轴转动惯量Iz/kg·m2 | 10 |
| 前轮侧偏刚度 /N·rad-1 | -12 000 |
| 后轮侧偏刚度 /N·rad-1 | -12 000 |
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| 控制参数 | 数值 |
| 预测时域 /s | 40 |
| 控制时域 /s | 4 |
| 采样时间 /s | 0.025 |
| 状态量权重矩阵Q | |
| 控制量权重R | |
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MPC控制器控制参数
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| 控制参数 | 数值 |
| 预测时域 /s | 40 |
| 控制时域 /s | 4 |
| 采样时间 /s | 0.025 |
| 状态量权重矩阵Q | |
| 控制量权重R | |
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| 曲率段 | 预测时域 |
| [0,0.005) | 34 |
| [0.005,0.01) | 32 |
| [0.01,0.015) | 30 |
| [0.015,0.02) | 26 |
| [0.02,0.025) | 24 |
| [0.025,0.03) | 22 |
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不同曲率对应预测时域
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| 曲率段 | 预测时域 |
| [0,0.005) | 34 |
| [0.005,0.01) | 32 |
| [0.01,0.015) | 30 |
| [0.015,0.02) | 26 |
| [0.02,0.025) | 24 |
| [0.025,0.03) | 22 |
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