Thermal Analysis and Research of a Yokeless and Segmented Armature Axial Flux In-Wheel Motor With an Amorphous Magnetic Metal Stator
The in-wheel motor for electric vehicles is required to meet the demands for high power density and a compact axial length. Precise thermal design and effective heat dissipation are critical, as they significantly influence the reliability of vehicle operation. This paper presents a novel yokeless a...
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| Format: | Article |
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IEEE
2025-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10921697/ |
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| author | Tao Li Yuxiu Liang Ye Yang Jingyi Tian Likang Fan |
| author_facet | Tao Li Yuxiu Liang Ye Yang Jingyi Tian Likang Fan |
| author_sort | Tao Li |
| collection | DOAJ |
| description | The in-wheel motor for electric vehicles is required to meet the demands for high power density and a compact axial length. Precise thermal design and effective heat dissipation are critical, as they significantly influence the reliability of vehicle operation. This paper presents a novel yokeless and segmented armature (YASA) axial flux in-wheel motor featuring a specifically designed amorphous magnetic metal stator. The electromagnetic and mechanical losses of the motor are calculated, and the thermal conduction properties of the amorphous magnetic metal stator are analyzed. Additionally, the equivalent thermal conduction coefficients for the windings and insulation are determined. A three-dimensional thermal finite element model of the motor is developed to obtain the temperature distribution. A prototype is manufactured, and an experimental platform is established to measure the temperature of each component. The measured data closely correlate with the calculated results, thereby validating the effectiveness of both the electromagnetic and thermal finite element models. The thermal characteristics of the prototype demonstrate compliance with the requirements for electric vehicles, providing valuable insights for the thermal design of the novel YASA in-wheel motor. |
| format | Article |
| id | doaj-art-5ec5c97817194bce8345b4e2be4bbb43 |
| institution | DOAJ |
| issn | 2169-3536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-5ec5c97817194bce8345b4e2be4bbb432025-08-20T02:42:05ZengIEEEIEEE Access2169-35362025-01-0113486724868210.1109/ACCESS.2025.355036210921697Thermal Analysis and Research of a Yokeless and Segmented Armature Axial Flux In-Wheel Motor With an Amorphous Magnetic Metal StatorTao Li0https://orcid.org/0000-0002-5588-550XYuxiu Liang1https://orcid.org/0000-0002-3418-3357Ye Yang2https://orcid.org/0000-0003-0337-3905Jingyi Tian3https://orcid.org/0000-0001-6095-7216Likang Fan4School of Automobile and Transportation, Tianjin University of Technology and Education, Tianjin, ChinaSchool of Mechanical Engineering, Tianjin Ren’ai College, Tianjin, ChinaSchool of Automobile and Transportation, Tianjin University of Technology and Education, Tianjin, ChinaSchool of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin, ChinaSchool of Transportation and Automobile Engineering, Xihua University, Chengdu, ChinaThe in-wheel motor for electric vehicles is required to meet the demands for high power density and a compact axial length. Precise thermal design and effective heat dissipation are critical, as they significantly influence the reliability of vehicle operation. This paper presents a novel yokeless and segmented armature (YASA) axial flux in-wheel motor featuring a specifically designed amorphous magnetic metal stator. The electromagnetic and mechanical losses of the motor are calculated, and the thermal conduction properties of the amorphous magnetic metal stator are analyzed. Additionally, the equivalent thermal conduction coefficients for the windings and insulation are determined. A three-dimensional thermal finite element model of the motor is developed to obtain the temperature distribution. A prototype is manufactured, and an experimental platform is established to measure the temperature of each component. The measured data closely correlate with the calculated results, thereby validating the effectiveness of both the electromagnetic and thermal finite element models. The thermal characteristics of the prototype demonstrate compliance with the requirements for electric vehicles, providing valuable insights for the thermal design of the novel YASA in-wheel motor.https://ieeexplore.ieee.org/document/10921697/Axial flux motorin-wheel motorloss analysisthermal analysisyokeless and segmented armature |
| spellingShingle | Tao Li Yuxiu Liang Ye Yang Jingyi Tian Likang Fan Thermal Analysis and Research of a Yokeless and Segmented Armature Axial Flux In-Wheel Motor With an Amorphous Magnetic Metal Stator IEEE Access Axial flux motor in-wheel motor loss analysis thermal analysis yokeless and segmented armature |
| title | Thermal Analysis and Research of a Yokeless and Segmented Armature Axial Flux In-Wheel Motor With an Amorphous Magnetic Metal Stator |
| title_full | Thermal Analysis and Research of a Yokeless and Segmented Armature Axial Flux In-Wheel Motor With an Amorphous Magnetic Metal Stator |
| title_fullStr | Thermal Analysis and Research of a Yokeless and Segmented Armature Axial Flux In-Wheel Motor With an Amorphous Magnetic Metal Stator |
| title_full_unstemmed | Thermal Analysis and Research of a Yokeless and Segmented Armature Axial Flux In-Wheel Motor With an Amorphous Magnetic Metal Stator |
| title_short | Thermal Analysis and Research of a Yokeless and Segmented Armature Axial Flux In-Wheel Motor With an Amorphous Magnetic Metal Stator |
| title_sort | thermal analysis and research of a yokeless and segmented armature axial flux in wheel motor with an amorphous magnetic metal stator |
| topic | Axial flux motor in-wheel motor loss analysis thermal analysis yokeless and segmented armature |
| url | https://ieeexplore.ieee.org/document/10921697/ |
| work_keys_str_mv | AT taoli thermalanalysisandresearchofayokelessandsegmentedarmatureaxialfluxinwheelmotorwithanamorphousmagneticmetalstator AT yuxiuliang thermalanalysisandresearchofayokelessandsegmentedarmatureaxialfluxinwheelmotorwithanamorphousmagneticmetalstator AT yeyang thermalanalysisandresearchofayokelessandsegmentedarmatureaxialfluxinwheelmotorwithanamorphousmagneticmetalstator AT jingyitian thermalanalysisandresearchofayokelessandsegmentedarmatureaxialfluxinwheelmotorwithanamorphousmagneticmetalstator AT likangfan thermalanalysisandresearchofayokelessandsegmentedarmatureaxialfluxinwheelmotorwithanamorphousmagneticmetalstator |