Development of an Active Sound Generation System for Sound Quality in EVs at Constant Speed Combined with Subjective Evaluation
In order to improve the comfort and dynamic sense of the interior sound of PEVs when driving at a constant speed, this paper carried out research on the evaluation method of the interior sound quality of EVs and the development of an active sound generation system (ASGS). The investigation and resea...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/21/10768 |
| _version_ | 1797469312111345664 |
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| author | Shuai Zhang Yipeng Li Liyou Xu Yuntao Cao |
| author_facet | Shuai Zhang Yipeng Li Liyou Xu Yuntao Cao |
| author_sort | Shuai Zhang |
| collection | DOAJ |
| description | In order to improve the comfort and dynamic sense of the interior sound of PEVs when driving at a constant speed, this paper carried out research on the evaluation method of the interior sound quality of EVs and the development of an active sound generation system (ASGS). The investigation and research on the sound development trend of EV interiors were carried out. Combined with subjective evaluation methods and test results, a constant-speed vehicle interior sound design method was proposed, which focused on three dimensions: engine order composition, spectral energy distribution, and sound amplitude enhancement in the typical vehicle speed range. The internal sound spectrum of FVs was analyzed, and the engine order sound simulation analysis was completed. It is verified that the short-time Fourier transform and synthesis technology based on Kaiser window function can meet the requirements of engine order sound fitting accuracy. To formulate the sound design plan, control objectives and control methods of an A-class pure electric SUV with both comfort and dynamic sense during accelerated driving, the correlation between the engine order sound amplitude and dynamic sense in the vehicle was analyzed, and the setting of active sound parameters of EVs was clarified. The control hardware and software of ASGS in the vehicle was developed, the construction of ASGS based on the vehicle sound system completed, and test verification was conducted. The objective test of the real vehicle shows that ASGS ensures a low-amplitude interior noise level. When the vehicle speed is 28.6 km/h, the sharpness is reduced by 0.52 acum, and the subjective evaluation test of the real vehicle further verifies that ASGS can improve the comfort and dynamic sound quality of EVs driving at a constant speed. |
| first_indexed | 2024-03-09T19:19:36Z |
| format | Article |
| id | doaj.art-fbd853f0b16d4fd1beb53c9387638d8f |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T19:19:36Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-fbd853f0b16d4fd1beb53c9387638d8f2023-11-24T03:32:30ZengMDPI AGApplied Sciences2076-34172022-10-0112211076810.3390/app122110768Development of an Active Sound Generation System for Sound Quality in EVs at Constant Speed Combined with Subjective EvaluationShuai Zhang0Yipeng Li1Liyou Xu2Yuntao Cao3College of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaCollege of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaCollege of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaGeneral R&D Institute of China FAW Group Co., Ltd., Changchun 130022, ChinaIn order to improve the comfort and dynamic sense of the interior sound of PEVs when driving at a constant speed, this paper carried out research on the evaluation method of the interior sound quality of EVs and the development of an active sound generation system (ASGS). The investigation and research on the sound development trend of EV interiors were carried out. Combined with subjective evaluation methods and test results, a constant-speed vehicle interior sound design method was proposed, which focused on three dimensions: engine order composition, spectral energy distribution, and sound amplitude enhancement in the typical vehicle speed range. The internal sound spectrum of FVs was analyzed, and the engine order sound simulation analysis was completed. It is verified that the short-time Fourier transform and synthesis technology based on Kaiser window function can meet the requirements of engine order sound fitting accuracy. To formulate the sound design plan, control objectives and control methods of an A-class pure electric SUV with both comfort and dynamic sense during accelerated driving, the correlation between the engine order sound amplitude and dynamic sense in the vehicle was analyzed, and the setting of active sound parameters of EVs was clarified. The control hardware and software of ASGS in the vehicle was developed, the construction of ASGS based on the vehicle sound system completed, and test verification was conducted. The objective test of the real vehicle shows that ASGS ensures a low-amplitude interior noise level. When the vehicle speed is 28.6 km/h, the sharpness is reduced by 0.52 acum, and the subjective evaluation test of the real vehicle further verifies that ASGS can improve the comfort and dynamic sound quality of EVs driving at a constant speed.https://www.mdpi.com/2076-3417/12/21/10768EVconstant speed conditioninterior sound qualityevaluation methodactive sound generation system |
| spellingShingle | Shuai Zhang Yipeng Li Liyou Xu Yuntao Cao Development of an Active Sound Generation System for Sound Quality in EVs at Constant Speed Combined with Subjective Evaluation Applied Sciences EV constant speed condition interior sound quality evaluation method active sound generation system |
| title | Development of an Active Sound Generation System for Sound Quality in EVs at Constant Speed Combined with Subjective Evaluation |
| title_full | Development of an Active Sound Generation System for Sound Quality in EVs at Constant Speed Combined with Subjective Evaluation |
| title_fullStr | Development of an Active Sound Generation System for Sound Quality in EVs at Constant Speed Combined with Subjective Evaluation |
| title_full_unstemmed | Development of an Active Sound Generation System for Sound Quality in EVs at Constant Speed Combined with Subjective Evaluation |
| title_short | Development of an Active Sound Generation System for Sound Quality in EVs at Constant Speed Combined with Subjective Evaluation |
| title_sort | development of an active sound generation system for sound quality in evs at constant speed combined with subjective evaluation |
| topic | EV constant speed condition interior sound quality evaluation method active sound generation system |
| url | https://www.mdpi.com/2076-3417/12/21/10768 |
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