一种创新型的智能电动车车速提示器  

An Innovative Intelligent Electric Bicycle Speed Reminder

作　　者：钱少伟[1,2] 诸俊帆 沈斌 唐志凌[1,2] QIAN Shaowei;ZHU Junfan;SHEN Bin;TANG Zhiling(Suzhou Higher Vocational School,Suzhou 215009,China;Suzhou Branch of Jiangsu United Vocational and Technical College,Suzhou 215009,China)

机构地区：[1]苏州高等职业技术学校,江苏苏州215009 [2]江苏联合职业技术学院苏州分院,江苏苏州215009

出　　处：《现代信息科技》2024年第5期194-198,共5页Modern Information Technology

摘　　要：文章对如何提高电动自行车车速检测的准确度进行了研究。一方面对电动自行车驱动电机霍尔信号滤波整形,通过单片机精确计算出信号周期,进而得出准确的电机转速;另一方面针对不同体重的电动自行车驾驶员,对电动自行车车轮产生的压力不同,进而导致轮子实际运行半径的不同,文章采用手动输入车轮半径的方式,使得车轮半径的参数更加精准。以上两个改进措施大大提高了电动自行车车速检测的准确度。当电动车超速时,提示器准确发出超速报警,从而减少交通事故的发生。This paper studies how to improve the accuracy of speed detection for electric bicycles.On the one hand,the Hall signal of the electric bicycle driving motor is filtered and reshaped,and the signal period is accurately calculated by a Single-Chip Microcomputer to obtain the accurate motor speed.On the other hand,for electric bicycle drivers of different weights,the pressure generated on the wheels of the electric bicycle is different,which leads to differences in the actual running radius of the wheels.This paper adopts a manual input of the wheel radius to make the parameters of the wheel radius more accurate.The accuracy of electric bicycle speed detection has been greatly improved through the above two improvement measures.Thus,when the electric bicycle exceeds the speed limit,the reminder will accurately issue an overspeed alarm,thereby reducing the occurrence of traffic accidents.

关 键 词：车速 提示器 车速准确度 电动车 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]