单片机与嵌入式系统应用Issue(7)：49-53,5.
AVR单片机的天然气发动机电控系统设计
Electronic Control System Design for Compressed Natural Gas Engines Based on AVR MCU
杨旭东 1綦慧 1王道静 1张红光 1刘凯1
作者信息
摘要
Abstract
An electronic control system for the automotive engines fueled with Compressed Natural Gas (CNG) was developed. A multi-microcontroller strategy was used for the ECU design,and the AVR microcontroller was used as its core. Several sensor conditioning circuits and actuator drive circuits were designed. By-pass air flow rate was controlled by a stepper motor,and the PID algorithm was adopted to adjust the idle speed in closed-loop.Pulse Width Modulation (PWM) was introduced to control the gas flow by governing the injection valve.Spark ignition energy was controlled actively by adjusting the charging time of the primary ignition coil while spark timing was regulated by power-off time.关键词
电控系统/CNG发动机/AVR单片机Key words
electronic control system/CNG engine/AVR MCU分类
信息技术与安全科学引用本文复制引用
杨旭东,綦慧,王道静,张红光,刘凯..AVR单片机的天然气发动机电控系统设计[J].单片机与嵌入式系统应用,2009,(7):49-53,5.
