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Research on Top-Down Design and Development for Sound Quality of Passenger Car Door Closing
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Xianghui Lin1, Xiaojun Shu1, Liang Ji1, Guangjun Mao2, Sun Gho Kim1
Automotive Engineer | 2025, (1) : 43 - 48
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Automotive Engineer | 2025, (1): 43-48
• Journey of Serenity and Comfort: Special Issue on Advanced Control Technologies for Vehicle NVH •
Research on Top-Down Design and Development for Sound Quality of Passenger Car Door Closing
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Xianghui Lin1, Xiaojun Shu1, Liang Ji1, Guangjun Mao2, Sun Gho Kim1
Affiliations
  • 1 Polar Krypton Automobile (Ningbo Hangzhou Bay New Area) Co., Ltd., Ningbo 315336
  • 2 Geely Automobile Research Institute (Ningbo) Co., Ltd., Ningbo 315336
Published: 2025-01-15 doi: 10.20104/j.cnki.1674-6546.20240190
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In order to improve customer’s door closing experience, top-down design and development of the sound quality of an electric vehicle’s door closing are carried out. In the product design phase, target values about subjective and objective evaluation for door closing sound quality are set according to door closing sound quality data of the existing vehicle model and test analysis of the benchmarked model, the main parameters affecting the sound quality of door closing are summarized. In the prototyping stage, NVH sound detection equipment is deployed to test sound quality parameters and simulate user experience for subjective evaluation. For the problems revealed in the sound quality evaluation results in the prototyping stage, sound quality has been improved by adopting the following measures: increasing seal reaction force in the door seal strip, controlling door seal gap, optimizing door lock and increasing door window holding force, etc. Subjective and objective evaluation results show that door closing quality of this model has achieved the product definition objective.

Door closing sound quality  /  Minimum closing speed  /  Static closing force  /  Sound pressure level  /  Loudness
Xianghui Lin, Xiaojun Shu, Liang Ji, Guangjun Mao, Sun Gho Kim. Research on Top-Down Design and Development for Sound Quality of Passenger Car Door Closing[J]. Automotive Engineer, 2025 , (1) : 43 -48 . DOI: 10.20104/j.cnki.1674-6546.20240190
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doi: 10.20104/j.cnki.1674-6546.20240190
  • Online Date：2025-11-09
  • Published：2025-01-15
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  • Revised：2024-08-19
Affiliations
    1 Polar Krypton Automobile (Ningbo Hangzhou Bay New Area) Co., Ltd., Ningbo 315336
    2 Geely Automobile Research Institute (Ningbo) Co., Ltd., Ningbo 315336
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多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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