The invention discloses an automobile speed display method and an automobile speed display device, and relates to the technical field of vehicle-mounted equipment, the automobile speed display method comprises the steps that a filter coefficient is set according to cruise control precision, and the cruise control precision is inversely proportional to the filter coefficient; performing filtering processing by combining the filtering coefficient, the vehicle speed displayed at the previous moment and the non-filtered conversion vehicle speed at the current moment to obtain the filtered conversion vehicle speed at the current moment; and rounding the filtered conversion vehicle speed at the current moment to obtain a display vehicle speed at the current moment, and displaying the display vehicle speed at the current moment. The filtering coefficient can be set in combination with the cruise control precision, the conversion vehicle speed after fluctuation filtering is calculated in combination with the filtering coefficient, the current display vehicle speed and the current conversion vehicle speed, the display vehicle speed is obtained by rounding the conversion vehicle speed after fluctuation filtering, the current conversion vehicle speed can be obtained only when the actual vehicle speed exceeds a certain threshold value, and the cruise control precision is improved. And moreover, the actual vehicle speed change can be captured in time, and the display precision and stability are improved.

    本申请公开了一种汽车车速显示方法和汽车车速显示装置,涉及车载设备技术领域,包括根据巡航控制精度设定滤波系数,巡航控制精度与滤波系数成反比;结合滤波系数、前一时刻显示车速以及当前时刻未滤波换算车速进行滤波处理,得到当前时刻滤波后的换算车速;对当前时刻的滤波后的换算车速进行取整处理得到当前时刻的显示车速,并进行显示。本申请能够结合巡航控制精度设定滤波系数,结合滤波系数、当前显示车速和当前换算车速计算滤除波动后的换算车速,根据滤除波动后的换算车速进行取整得到的显示车速,能够在实际车速超过一定的阈值时,才会通过当前换算车速,引起当前显示车速变化,且能够及时捕捉实际车速变化,提高显示精度和稳定性。


    Access

    Download


    Export, share and cite



    Title :

    Automobile speed display method and automobile speed display device


    Additional title:

    一种汽车车速显示方法和汽车车速显示装置


    Contributors:
    ZHOU HUOXING (author) / LIU JIFENG (author) / REN ZHIGANG (author)

    Publication date :

    2023-08-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



    Automobile tail speed display method

    ANG TAO / LI JUAN / LI YANG | European Patent Office | 2023

    Free access

    Speed reduction display device of automobile

    YANG JIAXING | European Patent Office | 2015

    Free access

    Automobile intelligent display device, automobile and automobile intelligent display control method

    CAI YUDAN / FAN YAOWEN / YUAN SHAOPENG et al. | European Patent Office | 2023

    Free access

    Automobile speed estimation method, automobile controller and automobile

    LING HEPING / WANG NING / MENG FANLIANG et al. | European Patent Office | 2023

    Free access

    Automobile transverse-speed measurement device and automobile transverse-speed calculation method

    XU JIACHUAN / LI SHAOTING / QIU XUYUN | European Patent Office | 2015

    Free access