The invention provides a rainfall sensor, an automatic windscreen wiper control system and a control method, the rainfall sensor comprises an ellipsoid lens, a light emitting module and a light receiving module, and the light emitting module and the light receiving module are arranged on two focuses of the ellipsoid lens in a one-to-one correspondence mode; the light emitting module is used for emitting detection light according to the input control current; the ellipsoid lens is used for reflecting and refracting the detection light, and the reflectivity and the refractive index of the ellipsoid lens are changed along with the liquid attached to the outer surface of the ellipsoid lens; and the light receiving module is used for receiving the detection light emitted by the light emitting module and reflected by the ellipsoid lens and converting the detection light into response current, and rainfall can be monitored through the change of the response current. By means of the optical principle of ellipse, the detection area is greatly enlarged, the detection sensitivity of the sensor is improved, the rainfall detection accuracy is improved, the windscreen wiper is controlled more accurately, and the vehicle using safety of a user is improved.

    本发明提供一种雨量传感器、自动雨刮控制系统及控制方法,该雨量传感器包括椭球体透镜、发光模块和收光模块,所述发光模块和收光模块一一对应设置于椭球体透镜的两个焦点上;所述发光模块,用于根据输入的控制电流发出检测光;所述椭球体透镜,用于对检测光进行反射和折射,椭球体透镜的反射率与折射率随附着在椭球体透镜外表面的液体改变;所述收光模块,用于接收发光模块发出的、以及椭球体透镜反射的检测光并转换为响应电流,通过响应电流的变化即可监测雨量。本发明利用椭圆的光学原理,极大地增大了检测区域、提升了传感器的检测灵敏度,提升了雨量检测的准确度,进而实现对雨刮更加准确的控制,提升用户的用车安全性。


    Access

    Download


    Export, share and cite



    Title :

    Rainfall sensor, automatic windscreen wiper control system and control method


    Additional title:

    一种雨量传感器、自动雨刮控制系统及控制方法


    Contributors:
    ZENG LU (author) / SHEN CHEN (author) / FU BIN (author)

    Publication date :

    2022-12-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen / G01W METEOROLOGY , Meteorologie



    Windscreen wiper control method based on rainfall sensor

    DENG YU / PENG YANG / CUI SHUO | European Patent Office | 2020

    Free access

    Windscreen wiper automatic control system

    WANG FANG | European Patent Office | 2020

    Free access

    Automatic control windscreen wiper system

    TANG YONGZHE | European Patent Office | 2022

    Free access

    Automobile automatic windscreen wiper control system

    LIU YINGCHUN / WEI HUAFENG / WU MIN | European Patent Office | 2015

    Free access

    Windscreen wiper control method

    DENG SHUAIQIANG / DONG SHESEN / GONG PENGLIANG et al. | European Patent Office | 2024

    Free access