The invention provides a vehicle with tail resistance reduction and a tail resistance reduction method, and belongs to the field of vehicle aerodynamics design, a vehicle control unit is connected with a speed sensor to obtain vehicle speed information, when the vehicle speed information is larger than a first preset vehicle speed threshold value, the vehicle control unit controls a plasma power source to be turned on, and the vehicle control unit controls the plasma power source to be turned on based on a preset output model; the plasma power supply is controlled to output voltage, so that ions of the plasma vortex generator move towards the buried electrode along the exposed electrodes through momentum exchange and airflow induction in the process of moving towards the gradient direction of the electric field, opposite wind is formed between the two exposed electrodes, vortex is rolled up, momentum mixing of free incoming flow and airflow near the wall surface is increased, and therefore, the momentum mixing effect is improved. Airflow separation at the tail is avoided or reduced, so that the tail negative pressure is reduced, and the vehicle air resistance is reduced. The appearance of the vehicle does not need to be changed, and the adverse effect of separation point change caused by different vehicle speeds and crosswind on the drag reduction effect can be avoided.

    本发明提供一种具有尾部减阻的车辆及尾部减阻方法,属于车辆空气动力学设计领域,整车控制器通过与速度传感器连接,获取车速信息,并在车速信息大于第一预设车速阈值时,整车控制器控制等离子体电源开启,并基于预设输出模型,控制等离子体电源输出电压,使等离子体涡发生器的离子在向电场梯度方向运动的过程中通过交换动量,诱导气流延裸露电极向掩埋电极运动,在两个裸露电极之间形成对向风,并卷起涡流,增加自由来流与近壁面气流的动量掺混,避免或减小尾部的气流分离,从而减小尾部负压,降低车辆空气阻力。本发明不用改变车辆外形,能够避免不同车速及侧风引起分离点改变对减阻效果产生的不利影响。


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    Title :

    Vehicle with tail resistance reduction function and tail resistance reduction method


    Additional title:

    一种具有尾部减阻的车辆及尾部减阻方法


    Contributors:
    HUI ZHENG (author) / DONG LIPING (author) / BI JIANGMAN (author) / HU XINGJUN (author) / REN LINLIN (author)

    Publication date :

    2023-10-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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