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For the uncertainty of the shift control model and parameters and the existing unknown disturbances of the two-speed dual clutch transmission （2DCT） of pure electric vehicles， a linear active disturbance rejection controller （LADRC） method is proposed. Firstly， the dynamic model of the 2DCT shifting process is established， and the shifting process is analyzed. Then， considering the uncertainty and unknown disturbance of the control model， the LADRC controller is applied to the shifting process to track the desired rotational speed， and the Extended State Observer （ESO） is used to estimate the disturbance in real time and compensate for it. Finally， it is compared with the PID control. Simulation and experimental results show that the controller has smaller tracking error and strong robustness， which ensures good gear shifting quality.
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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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