To address the problems of strong subjectivity in subjective evaluation and disconnection between objective data and subjective perception in the drivability assessment of commercial vehicles equiped with Automated Mechanical Transmissions (AMTs), a comprehensive drivability evaluation method based on the AVL-Drive test system is proposed. By designing test schemes for typical driving conditions, the AVL-Drive system is used to accurately collect multi-dimensional objective data such as vehicle speed, acceleration, and engine speed. Combined with a standardized subjective evaluation scale, a quantitative correlation model between subjective perception and objective indicators is established. The test results show that this method can realize the objective characterization of core drivability sub-items including starting smoothness and shift quality, effectively identify the drivability shortcomings of AMT commercial vehicles, provide a clear technical path for rearch and development optimization.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 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 |