The invention belongs to the technical field of automobiles, and particularly relates to an automatic calibration method and device for a low-speed warning tone of an electric automobile. Comprising the following steps: adjusting standard sound under a D-grade 10km/h working condition; the standard sound is calibrated under the D-grade 10km/h working condition; the standard sound is adjusted under the working condition of a D gear of 20km/h; the standard sound is calibrated under the D-grade 20km/h working condition; the standard sound is adjusted under the R-gear 6km/h working condition; the standard sound is calibrated under the R-gear 6km/h working condition; self-checking the state of the low-speed prompt tone; calculating and analyzing the sound; comparing the sound characteristics; the sound is calibrated; and carrying out information prompting. The low-speed warning tone sound pressure level outside the vehicle can be automatically monitored, if dust is accumulated on the surface of the low-speed warning tone loudspeaker or freezing is generated, a sound production hole is blocked, and consequently the sound pressure level outside the vehicle is lowered, the system can find and start the automatic calibration function in time, the sound pressure level outside the vehicle meets the requirements of laws and regulations, meanwhile, prompt information is sent to a user, and the user experience is improved. Therefore, it can be ensured that the sound pressure level outside the vehicle always meets the requirements of laws and regulations, and potential traffic safety hazards are reduced.

    本发明属于汽车技术领域,具体的说是一种电动汽车低速提示音自动校准方法及装置。包括:D档10km/h工况下对标准声音进行调整;D档10km/h工况下对标准声音进行标定;D档20km/h工况下对标准声音进行调整;D档20km/h工况下对标准声音进行标定;R档6km/h工况下对标准声音进行调整;R档6km/h工况下对标准声音进行标定;对低速提示音状态进行自检;对声音进行计算分析;对声音特性进行比对;对声音进行校准;进行信息提示。本发明能够对车外低速提示音声压级进行自动监控,如果低速提示音扬声器表面积累灰尘或产生冰冻,堵塞发声孔,导致车外声压级降低,系统会及时发现并启动自动校准功能,使车外声压级达到法规要求,同时给用户发出提示信息,提醒用户及时检查处理,因此可以保证车外声压级始终满足法规要求,减小交通安全隐患。


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    Title :

    Method and device for automatically calibrating low-speed warning tone of electric vehicle


    Additional title:

    一种电动汽车低速提示音自动校准方法及装置


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

    Publication date :

    2024-07-09


    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



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