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A new electromagnetic friction braking system was designed in an attempt to improve vehicle braking safety. Structure of the traditional braking system was optimized, and the auxiliary control algorithm of the brake was added to the Electronic Control Unit (ECU), and the working principle of the new braking system under different working conditions was analyzed, the relationship between braking torque at different speeds, the eddy current of the brake disc and the vehicle speed and the applied magnetic field was derived, and the vehicle dynamics model, electromagnetic brake model and vehicle power supply model were established. The joint simulation was carried out based on the Simulink and Maxwell platforms. The results show that on the basis of the traditional braking system, the braking distance can be significantly shortened and the braking performance can be improved by optimizing the electromagnetic brake. And the energy recovery device has successfully realized the recovery and reuse of the vehicle’s kinetic energy.
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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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