The invention discloses a low-speed warning tone control method and device for an electric vehicle, and the method is applied to a warning tone controller, and comprises the steps: receiving a target pulse width modulation (PWM) signal sent by a vehicle body domain controller; wherein the target PWM signal is determined and generated by the vehicle body domain controller according to current state information of the electric vehicle, and the current state information at least comprises a current vehicle speed signal and a current gear signal; determining prompt tone data according to the target PWM signal; and outputting the prompt tone data to a loudspeaker for playing through an audio power amplifier module. The method of the invention is easy to realize, and the cost is reduced.

    本发明公开了一种电动汽车的低速提示音控制方法及装置,方法应用于提示音控制器,包括:接收车身域控制器发送的目标脉冲宽度调制PWM信号;其中所述目标PWM信号是所述车身域控制器根据电动汽车当前的状态信息确定并生成的,所述当前的状态信息至少包括:当前的车速信号和当前的档位信号;根据所述目标PWM信号,确定提示音数据;将所述提示音数据通过音频功放模块输出至扬声器进行播放。本发明的方案容易实现,且降低了成本。


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    Title :

    Low-speed warning tone control method and device for electric vehicle


    Additional title:

    一种电动汽车的低速提示音控制方法及装置


    Contributors:

    Publication date :

    2021-10-26


    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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