用于电动助力车的力矩传感器电路设计  

Design of Torque Sensor Circuit for Electric Bicycle

作　　者：卞刚 Bian Gang(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学机械工程学院,上海市200093

出　　处：《农业装备与车辆工程》2022年第3期146-148,共3页Agricultural Equipment & Vehicle Engineering

摘　　要：电动助力车的力矩传感器将采集到的动态力矩信号转变为数字信号,再转为模拟信号输出给控制器,从而能够给骑行者提供动力支持。设计了力矩传感器电路。该电路使用应变片式传感器采集信号,信号经过放大之后,通过单片机PIC的V-F转换功能,输出了方波信号,利用线圈耦合出来。信号滤波、整形后经单片机F-V转换,输出模拟信号给电动助力车的控制器。The torque sensor of electric bicycle converts the collected dynamic torque signal into digital signal,and then converts it into analog signal and outputs it to the controller,so as to provide power support for riders.A torque sensor circuit is designed.The circuit uses strain gauge sensor to collect signal.After the signal is amplified,the square wave signal is output through the V-F conversion function of PIC,which is coupled by coil.After filtering and shaping,the analog signal is output to the controller of electric bicycle by F-V conversion of single chip microcomputer.

关 键 词：电动助力车 力矩传感器 数字信号 模拟信号 PIC 

分 类 号：U483[交通运输工程—载运工具运用工程]