基于MKE06Z64的电动汽车低速行驶提醒系统设计

Design of Low Speed Driving Warning System for Electric Vehicles Based on MKE06Z64

为了解决电动汽车低速行驶中因无提示音而易引发交通事故的问题,设计了一个基于MKE06Z64的电动汽车低速行驶提醒系统.该系统主要包括主控模块、电源模块、稳压模块、CAN总线模块、LPF模块、功放模块和存储模块(备用)等.主控模块接收并分析电动汽车CAN总线的指令,获取档位、车速、使能信号和音源选择等车况信息,主控芯片再根据这些信息找到对应的音源,利用PWM输出提示音.

In order to solve the problem of traffic accidents caused by no warning sound in low-speed driving of electric vehicles,the author designs a low-speed driving warning system of electric vehicles based on MKE06Z64.The system mainly consists of main control module,power supply module,CAN module,LPF module,power amplifier module and storage module(standby)and so on.The main control module receives instructions from the CAN bus of electric vehicle,and then analyzes the instruction information to obtain vehicle condition information such as gear position,speed,enabling signal and audio source selection.Finally,the main control chip finds the corresponding sound source according to these information,and outputs the warning sound by PWM.