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随着电子技术及微型计算机的飞速发展,汽车电子也进入了微电脑时代。单片机以其结构简单、集成度高、性能稳定而被广泛应用于汽油发动机,形成了燃烧功率高、尾气排放好的电控式汽车。一、结构与功能本文采用Microchip公司的PIC16C74单片机,对汽油发动机进行控制。模拟量采集有:节气门位置、水箱温度;脉冲量采集:发动机转速:控制量有:喷油量为时间长短可变的脉冲信号、怠速阀为方向信号(正转、反转)、脱机信号(工作、停止)和频率(步进快慢)可变的方波信
With the rapid development of electronic technology and microcomputers, automotive electronics has also entered the era of microcomputer. Microcontroller with its simple structure, high integration, stable performance and is widely used in gasoline engines, the formation of a high combustion power, exhaust emissions, good electronic control car. First, the structure and function In this paper, Microchip’s PIC16C74 microcontroller, gasoline engine control. Analog collection: throttle position, water tank temperature; pulse acquisition: engine speed: the amount of control: the amount of injection time variable pulse signal, the idle valve for the direction of the signal (forward, reverse) Signal (work, stop) and frequency (step speed) variable square wave letter