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[論文] 마이크로 콤퓨터를 이용한 차량용 엔진 제어에 관한 기초 연구
강기문(Ki Moon Kang),전병실(Byoung Sil Chon),황준택(Jun Teak Hwang) 한국자동차공학회 1985 오토저널 Vol.7 No.3
In order to control ignition advance angle,this system is designed with Z-80 CPU, CTC(Counter Timer Circuit), PIO (Parallel Input Output), A/D Converter and Memory, etc.<br/> Serial pulses from speed sensor and analog voltage from pressure sensor are converted to digital data.<br/> In order to reduce the error of ignition advance angle output, the reference of ignition advance angle output is set 56.25 before TDC (Top Dead Center).<br/> The table of ignition advance angle and program which have a main routine and subroutines are writtern into ROM(1K-byte),<br/> The experimental result of this system is correspondent to the theoretical values of proposed ignition advance angle table.<br/> This system can be utilized to any other type of 4 cylinder vehicles for advance angle control by changing software.