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Evaluation of Starting Quality of DCT Vehicles Based on Grey Relation and Fuzzy Theory
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Haijiang Liu, Zijian Yu
Automobile Technology | 2023, (5) : 34 - 39
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Automobile Technology | 2023, (5): 34-39
Evaluation of Starting Quality of DCT Vehicles Based on Grey Relation and Fuzzy Theory
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Haijiang Liu, Zijian Yu
Affiliations
  • Tongji University, Shanghai 201804
Published: 2023-05-24 doi: 10.19620/j.cnki.1000-3703.20220892
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At present, the starting evaluation method of Dual Clutch Transmission (DCT) vehicles is mainly based on the driver’s subjective evaluation. Too much subjectivity leads to inaccurate evaluation. In view of the above problems, a DCT vehicle starting quality evaluation system was established based on the grey relational analysis method and the fuzzy comprehensive evaluation method. In this study, power, comfort and economy were considered, and starting quality evaluation indicators including starting response delay time, starting acceleration time, starting acceleration peak, engine speed fluctuation and shock were selected as evaluation index. The coefficient of variation method calculated the objective weight of the starting quality evaluation indicators, and based on the grey relational analysis method, the order of the correlation degree between each index and the starting quality was clarified, which verified the accuracy and reliability of the weight calculation results. Finally, based on the fuzzy comprehensive evaluation, the starting quality evaluation model of DCT vehicles was established and objectively scored, which made the starting quality evaluation of DCT vehicles more objective and true.

Dual Clutch Transmission (DCT)  /  Starting quality  /  Evaluation index  /  Grey relational analysis  /  Fuzzy comprehensive evaluation
Haijiang Liu, Zijian Yu. Evaluation of Starting Quality of DCT Vehicles Based on Grey Relation and Fuzzy Theory[J]. Automobile Technology, 2023 , (5) : 34 -39 . DOI: 10.19620/j.cnki.1000-3703.20220892
Year 2023 volume Issue 5
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doi: 10.19620/j.cnki.1000-3703.20220892
  • Online Date:2025-12-07
  • Published:2023-05-24
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  • Revised:2022-11-16
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    Tongji University, Shanghai 201804
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
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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