The invention discloses an electric automobile low-speed warning tone self-adaptive control system and method, and belongs to the technical field of electric automobiles, and the electric automobile low-speed warning tone self-adaptive control system comprises a noise collection device arranged on the outer side of an automobile body and used for collecting noise signals outside the automobile; the processor is arranged on the inner side of the vehicle body, the input end of the processor is electrically connected with the noise collecting device, the output end of the processor is electrically connected with the loudspeaker, and the processor is used for calculating the total sound pressure level outside the vehicle according to the noise signals outside the vehicle collected by the noise collecting device; and performing adaptive switching on the frequency composition and the sound pressure level of the pedestrian warning sound according to the total sound pressure level outside the vehicle to obtain a to-be-played warning sound, and controlling a loudspeaker to play the to-be-played warning sound. According to the method, the frequency spectrum and the sound pressure level of the low-speed warning tone sent by the vehicle are adaptively adjusted according to the sound pressure level of the external environment noise, so that the low-speed warning tone is more easily perceived by pedestrians. The method is suitable for self-adaptive adjustment of the pedestrian warning sound when the electric vehicle runs at a low speed.

    本申请公开了一种电动汽车低速提示音自适应控制系统和控制方法,属于电动汽车技术领域,电动汽车低速提示音自适应控制系统包括:噪声采集装置,设置于车体外侧,用于采集车外噪声信号;处理器,设置于车体内侧,处理器的输入端与噪声采集装置电连接,处理器的输出端与扬声器电连接,用于根据噪声采集装置采集的车外噪声信号计算车外总声压级,根据车外总声压级对行人警示音的频率组成和声压级进行自适应切换得到待播放警示音,并控制扬声器对所述待播放警示音进行播放。本申请根据车外环境噪声的声压级对车辆发出的低速提示音的频谱和声压级进行自适应调整,使低速提示音更易被行人感知。适用于电动汽车低速行驶时对行人警示音的自适应调整。


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    Title :

    Electric automobile low-speed warning tone self-adaptive control system and control method


    Additional title:

    一种电动汽车低速提示音自适应控制系统和控制方法


    Contributors:
    WANG SHI (author) / DENG JIANJIAO (author) / LI YUN (author) / LI HAO (author)

    Publication date :

    2023-05-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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