The invention discloses a power-assisted control method of an electric vehicle based on information fusion. The control method comprises the steps: obtaining the treading frequency of a rider through a treading frequency sensor; acquiring a vehicle acceleration value and a vehicle attitude through an attitude detection sensor; presetting an initial power-assisted ratio and system cycle time; and carrying out data analysis on the current acceleration and the uphill angle of the vehicle, obtaining the current vehicle attitude through a Kalman filtering attitude solution algorithm, calculating the optimal power-assisted ratio corresponding to the current vehicle attitude. When a treading frequency signal is detected, the real-time optimal power-assisted ratio can be updated in the first system period; the power-assisted ratio is changed once according to the real-time posture of the moped in each system period later, so that the power-assisted ratio is intelligently changed along with the change of the riding road condition, the speed response of the moped is improved, and the riding feeling is optimized.

    本发明公开了一种基于信息融合的电动车的助力控制方法,其中控制方法包括:通过踏频传感器获取骑行者踩踏频率;通过姿态检测传感器获取车辆加速度值和车辆姿态;预设初始助力比值和系统周期时间;将车辆当前的加速度和上坡角度进行数据分析,通过卡尔曼滤波姿态解算算法获取当前车辆姿态,计算出对应当前车辆姿态的最优助力比,在检测到踏频信号时,第一个系统周期会更新实时的最优助力比,在以后每个系统周期内根据车辆实时姿态改变一次助力比,实现助力比随骑行路况的改变而做出智能更改,提高了助力车的速度响应,优化了骑行感觉。


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    Title :

    Power-assisted control method of an electric vehicle based on information fusion


    Additional title:

    基于信息融合的电动车助力控制方法


    Contributors:
    LU TENGFEI (author) / ZHANG YI (author) / WEI HAIFENG (author) / WANG HAOCHEN (author)

    Publication date :

    2021-12-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer




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