汽车起动机控制电路保护设计的研究  

Protection Design of Automobile Starter Control Circuit

作　　者：苏梁德 Su Liangde

机构地区：[1]北海职业学院,广西北海市536000

出　　处：《时代汽车》2023年第5期121-123,共3页Auto Time

基　　金：广西中青年教师科研能力基础提升《基于单片机与传感器技术的汽车起动控制系统设计与实践》(2021KY1442)。

摘　　要：为了研究一套传统汽车起动机保护系统,有效解决新手司机和正在学车的学员在起动汽车时出现起动机“空转”和“打齿”现象,损坏起动机和缩短起动机使用寿命的问题。本文通过研究汽车起动机控制电路保护设计系统在传统汽车的应用意义,本文用一台丰田汽车台架进行试验研究,并且通过对曲轴位置传感器检测发动机启动时曲轴的转速,曲轴位置传感器将发动机转速变化以电信号形式输送到单片机,单片机根据到发动机转速变化,对起动系统电路进行控制。研究冷车启动时发动机转速和热车启动时发动机转速电信号变化,在发动机启动后将由单片机切断电路,让起动机停止工作起到保护起动机作用。结果分析表明发动机冷车时发动机转速达到800±50r/min,热车启动时发动机转速达到700±50r/min。The study is to study a set of traditional automobile starter protection system,which can effectively solve the problems of “idling” and “toothbeating” of starter when novice drivers and students learning to start cars,which will damage the starter and shorten its service life.In this paper,the application significance of automobile starter control circuit protection design system in traditional automobiles is studied,and a Toyota test bench is used for experimental research.The crankshaft position sensor detects the crankshaft speed when the engine starts,and the crankshaft position sensor sends the engine speed change to the single chip microcomputer in the form of electric signal,and the single chip microcomputer controls the starting system circuit according to the engine speed change.The electric signal changes of engine speed when cold car starts and when hot car starts are studied.After the engine starts,the single chip microcomputer will cut off the circuit,so that the starter can stop working to protect the starter.The results show that the engine speed reaches 800±50r/min when the engine is cold and 700±50r/min when the engine is hot.

关 键 词：单片机控制 保护 起动机 电路 

分 类 号：U46[机械工程—车辆工程]