Software Design of Sequential Injector Controller for Double Cylinders Diesel Engine using 8-Bit Microcontroller

Mulia Pratama, W. B. Santoso, Ahmad Dimyani, Achmad Praptijanto, Arifin Nur, Y. Putrasari
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Abstract

Residue of fossil fuel combustion such as CO, CO2, HC, and NOx need to be controlled in order to reduce the greenhouse effect, the prime cause of global warming. A large population of diesel engine power plant that spread all over Indonesia will take part in increasing global warming. Using fuel efficiently will control the emission level subsequently reducing the greenhouse effect. One of the many techniques to utilize fuel efficiently is HCCI. HCCI application in a diesel engine is carried out using controllable electronic injectors. Design and building of an SD295 double cylinder diesel engine electronic controller using ATMEGA8535 had been conducted in this research. Principle of this control method is to vary the timing and amount of fuel injected directly to the combustion chamber. The timing of fuel injection is related to SOI (Start of Injection) and EOI (End of Injection). The amount of fuel injected is proportional to the duration of activated injectors from SOI to EOI, the longer the duration the more of fuel injected to the chamber. Performance of prototype of SD295 double cylinder diesel engine electronic controller using ATMEGA8535 as the result of this research had been validated using COM Engine Indicating instrument located in Internal Combustion Engine Laboratory P2 TELIMEK LIPI. Test results show that varying and setting of SOI and EOI were well executed by the control system.
双缸柴油机顺序喷油器控制器的8位单片机软件设计
为了减少温室效应,需要控制化石燃料燃烧的残留物,如CO, CO2, HC和NOx,这是导致全球变暖的主要原因。遍布印度尼西亚各地的大量柴油发动机发电厂将加剧全球变暖。有效地使用燃料将控制排放水平,从而减少温室效应。高效利用燃料的众多技术之一是HCCI。采用可控电子喷油器进行了HCCI在柴油机上的应用。本研究采用ATMEGA8535进行了SD295双缸柴油机电子控制器的设计与制作。这种控制方法的原理是改变燃料直接注入燃烧室的时间和数量。燃油喷射的时间与SOI(开始喷射)和EOI(结束喷射)有关。注入的燃料量与激活喷油器从SOI到EOI的持续时间成正比,持续时间越长,注入燃烧室的燃料越多。利用ATMEGA8535对SD295双缸柴油机电子控制器样机的性能进行了验证,并通过位于内燃机实验室P2 TELIMEK LIPI的COM发动机指示仪进行了验证。测试结果表明,控制系统能够很好地实现SOI和EOI的变化和整定。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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