Article(id=1195432022073196689, tenantId=1146029695717560320, journalId=1189645257101713411, issueId=1195432021267890320, articleNumber=null, orderNo=null, doi=10.19822/j.cnki.1671-6329.20230290, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1762942804114, onlineDateStr=2025-11-12, pubDate=1738684800000, pubDateStr=2025-02-05, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1762942804114, onlineIssueDateStr=2025-11-12, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1762942804114, creator=13701087609, updateTime=1762942804114, updator=13701087609, issue=Issue{id=1195432021267890320, tenantId=1146029695717560320, journalId=1189645257101713411, year='2025', volume='', issue='2', 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=1762942803923, creator=13701087609, updateTime=1762945377007, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1195442813602152532, tenantId=1146029695717560320, journalId=1189645257101713411, issueId=1195432021267890320, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1195442813606346837, tenantId=1146029695717560320, journalId=1189645257101713411, issueId=1195432021267890320, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=18, endPage=22, ext={EN=ArticleExt(id=1195432023125966997, articleId=1195432022073196689, tenantId=1146029695717560320, journalId=1189645257101713411, language=EN, title=Analysis of Key Technologies and Development Trends in Electric Propulsion System for New Energy Vehicle, columnId=null, journalTitle=Automotive Digest, columnName=null, runingTitle=null, highlight=null, articleAbstract=
The development of electric vehicles is crucial for addressing the energy crisis and environmental challenges. To analyze the key technologies and propose innovative directions for advancing new energy vehicles, this paper based on the “Energy-Saving and New Energy Vehicle Technology Roadmap 2.0,” provides an overview of the critical technologies and performance metrics of traction motors and motor controllers within electric propulsion systems. By examining the current status and challenges of these systems, the paper forecasts future development trends and proposes innovative directions in motor design, control algorithms, thermal management, and functional safety. These insights aim to contribute to the further development of electric propulsion technologies in China’s new energy vehicle sector.
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电动汽车的发展对于解决能源危机和环境问题至关重要。为了分析电驱动系统的关键技术并探索其创新方向,推动新能源汽车发展,基于《节能与新能源汽车技术路线图2.0》,概述了电驱动系统中的驱动电机和驱动电机控制器的关键技术及其性能指标。通过分析电驱系统发展现状及存在问题,预测其未来发展趋势,提出了包括电机设计、控制算法、散热技术、功能安全在内的创新方向,以期为我国新能源汽车电驱技术的进一步发展提供参考。
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| 驱动电机的关键技术 | 技术特点 | 技术优势 | 技术难题 |
| 高效散热技术 | 采用高导热材料、优化散热结构以及增加散热面积的方式提高电机散热性能 | 抑制电机温升、提高电机效率、延长电机寿命 | 控制散热成本、解决散热与结构之间的冲突 |
| 高频轴承电流抑制技术 | 采用绝缘轴承、陶瓷轴承以及轴承保护器的方式抑制由电机高频开关引起的轴承电流 | 保护轴承免受电蚀、延长轴承寿命、降低噪声 | 提高轴承可靠性、降低轴承成本 |
| 高精度位置传感器技术 | 采用霍尔传感器、光学编码器以及磁阻传感器的方式检测电机转子的位置和速度 | 提高电机控制精度、降低转矩脉动、提高效率 | 传感器与电机之间的匹配问题、提高传感器抗干扰能力 |
| 少(无)重稀土永磁体技术 | 采用在钕铁硼永磁体中掺杂、替代部分重稀土元素或采用铁氮化物永磁体的方式减少或消除重稀土元素的使用 | 降低永磁体成本、降低对稀土资源的依赖性 | 保持永磁体的高性能、提高永磁体的稳定性和可靠性 |
| 永磁体辅助多层磁阻电机技术 | 采用永磁体和多层绕组结合的方式实现磁阻效应和永磁效应的叠加 | 提高电机效率、降低永磁体用量、提高故障容错能力 | 增加电机设计难度、增加控制复杂度 |
), ArticleFig(id=1195653351506494212, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1195432022073196689, language=CN, label=表1, caption=
驱动电机关键技术对比
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| 驱动电机的关键技术 | 技术特点 | 技术优势 | 技术难题 |
| 高效散热技术 | 采用高导热材料、优化散热结构以及增加散热面积的方式提高电机散热性能 | 抑制电机温升、提高电机效率、延长电机寿命 | 控制散热成本、解决散热与结构之间的冲突 |
| 高频轴承电流抑制技术 | 采用绝缘轴承、陶瓷轴承以及轴承保护器的方式抑制由电机高频开关引起的轴承电流 | 保护轴承免受电蚀、延长轴承寿命、降低噪声 | 提高轴承可靠性、降低轴承成本 |
| 高精度位置传感器技术 | 采用霍尔传感器、光学编码器以及磁阻传感器的方式检测电机转子的位置和速度 | 提高电机控制精度、降低转矩脉动、提高效率 | 传感器与电机之间的匹配问题、提高传感器抗干扰能力 |
| 少(无)重稀土永磁体技术 | 采用在钕铁硼永磁体中掺杂、替代部分重稀土元素或采用铁氮化物永磁体的方式减少或消除重稀土元素的使用 | 降低永磁体成本、降低对稀土资源的依赖性 | 保持永磁体的高性能、提高永磁体的稳定性和可靠性 |
| 永磁体辅助多层磁阻电机技术 | 采用永磁体和多层绕组结合的方式实现磁阻效应和永磁效应的叠加 | 提高电机效率、降低永磁体用量、提高故障容错能力 | 增加电机设计难度、增加控制复杂度 |
), ArticleFig(id=1195653351573603077, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1195432022073196689, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 动电机控制器关键技术 | 技术特点 | 技术优势 | 技术挑战 |
| 低感高密度SiC模块技术 | 采用SiC金属氧化物半导体场效应管(Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET)和铜金属基板的功率模块,降低寄生电感和体积 | 提高效率、降低损耗、提高电压利用率、提高载流密度和寿命 | 降低成本、提高可靠性、解决散热问题 |
| 提升效率的新型控制算法 | 采用基于模型预测控制(Model Predictive Control,MPC)等方法的控制算法,通过电机数学模型和优化算法,实现最佳电机控制。 | 提高电机控制精度、降低转矩脉动、提高效率和稳定性 | 解决非线性、不确定性和干扰等问题 |
| 高集成度封装技术 | 采用基于嵌入式功率模块(Embedded Power Module,EPM)等技术的封装技术,通过将功率器件嵌入到印刷电路板(Printed Circuit Board,PCB)中,减少连接件和焊点。 | 降低寄生参数和故障率、缩小封装体积和质量、提高性能和可靠性 | 实现复杂系统的建模和仿真、实现多学科多目标的协同优化 |
| 高效双面冷却技术 | 采用微通道换热器(Microchannel Heat Exchanger,MHE)等技术,对控制器两面进行冷却,提高热量散发效率。 | 降低电机温升、提高电机效率、延长电机寿命 | 控制散热成本、解决散热与结构之间的冲突 |
| 主动降噪控制策略 | 采用基于模型预测控制等方法,生成反向声波以降低噪声,提高乘坐舒适度 | 保护轴承免受电蚀、延长轴承寿命、降低噪声 | 解决噪声源识别、噪声传播路径分析和噪声消除方案设计等问题 |
| 功能安全设计技术 | 采用符合ISO26262标准的设计方法保证电机控制器的功能安全性 | 防止或减少由于电机控制器故障引起的事故风险 | 实现电机控制器的故障预防、故障检测和故障处理等功能 |
), ArticleFig(id=1195653351661683462, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1195432022073196689, language=CN, label=表2, caption=
各种驱动电机控制器关键技术简介
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| 动电机控制器关键技术 | 技术特点 | 技术优势 | 技术挑战 |
| 低感高密度SiC模块技术 | 采用SiC金属氧化物半导体场效应管(Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET)和铜金属基板的功率模块,降低寄生电感和体积 | 提高效率、降低损耗、提高电压利用率、提高载流密度和寿命 | 降低成本、提高可靠性、解决散热问题 |
| 提升效率的新型控制算法 | 采用基于模型预测控制(Model Predictive Control,MPC)等方法的控制算法,通过电机数学模型和优化算法,实现最佳电机控制。 | 提高电机控制精度、降低转矩脉动、提高效率和稳定性 | 解决非线性、不确定性和干扰等问题 |
| 高集成度封装技术 | 采用基于嵌入式功率模块(Embedded Power Module,EPM)等技术的封装技术,通过将功率器件嵌入到印刷电路板(Printed Circuit Board,PCB)中,减少连接件和焊点。 | 降低寄生参数和故障率、缩小封装体积和质量、提高性能和可靠性 | 实现复杂系统的建模和仿真、实现多学科多目标的协同优化 |
| 高效双面冷却技术 | 采用微通道换热器(Microchannel Heat Exchanger,MHE)等技术,对控制器两面进行冷却,提高热量散发效率。 | 降低电机温升、提高电机效率、延长电机寿命 | 控制散热成本、解决散热与结构之间的冲突 |
| 主动降噪控制策略 | 采用基于模型预测控制等方法,生成反向声波以降低噪声,提高乘坐舒适度 | 保护轴承免受电蚀、延长轴承寿命、降低噪声 | 解决噪声源识别、噪声传播路径分析和噪声消除方案设计等问题 |
| 功能安全设计技术 | 采用符合ISO26262标准的设计方法保证电机控制器的功能安全性 | 防止或减少由于电机控制器故障引起的事故风险 | 实现电机控制器的故障预防、故障检测和故障处理等功能 |
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