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In order to solve the problem of clutch overheating during the launching of a Dual Clutch Transmission (DCT) vehicle in the Drive mode of D1 gear under extreme working conditions, this paper proposes a dual-clutch launching control method to improve the climbing and escape performance of the vehicle. Based on the analysis of the hardware structural conditions, the clutch plate temperature model and the specific process of DCT launching, this paper proposes to use the D2 gear clutch to undertake the useless slipping power at the beginning of the steady speed stage of launching, and then switch back to the D1 gear clutch when the engine torque gradually increases to exceed the threshold, the paper then elaborates in detail the activation conditions and specific implementation process of the control method. Vehicle test verification shows that the dual-clutch launching has obvious advantages in clutch temperature control and driving smoothness compared with the single-clutch launching, and the vehicle climbing and escape performance has been significantly improved.
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| 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 |
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