The invention provides a low-speed warning tone system of an electric automobile. The low-speed warning tone system comprises an automobile instrument, a power amplifier module and a loudspeaker, the automobile instrument is provided with a PCB, the output end of the PCB is connected with the input end of the power amplifier module, and the output end of the power amplifier module is connected with the input end of the loudspeaker. The PCB is provided with an MCU and a CAN transceiver, the MCU receives vehicle speed and gear information through the CAN transceiver and judges whether a vehicle is in a forward gear and the vehicle speed is lower than a set vehicle speed threshold value or not, if yes, the PCB is controlled to output alarm prompt information, and the power amplifier module drives the loudspeaker to prompt and broadcast. The production cost of the electric automobile can be reduced, and the intelligence of automobile electronic equipment is improved.
本发明提供一种电动汽车低速提示音系统,包括:汽车仪表、功放模块和扬声器;所述汽车仪表设有PCB板,所述PCB板的输出端与所述功放模块的输入端相连接,所述功放模块的输出端与所述扬声器的输入端相连接;所述PCB板设有MCU和CAN收发器,所述MCU通过所述CAN收发器接收车速和档位信息,并判断车辆是否处于前进档且车速低于设定车速阈值,如果是,则控制所述PCB板输出报警提示信息,使所述功放模块驱动所述扬声器进行提示播音。本发明能降低电动汽车的生产成本,增加汽车电子设备的智能性。
Low-speed warning tone system of electric automobile
一种电动汽车低速提示音系统
2024-06-14
Patent
Electronic Resource
Chinese
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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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