预喷射控制算法在电控单体泵柴油机上的应用  

Pilot injection control algorithm for an electronic unit pump diesel engine

作　　者：李启发[1] 周明[1] 张科勋[1] 褚全红[2] 刘生旺[2] 

机构地区：[1]清华大学汽车工程系汽车安全与节能国家重点实验室,北京100084 [2]中国北方发动机研究所,大同037036

出　　处：《清华大学学报（自然科学版）》2006年第11期1900-1903,共4页Journal of Tsinghua University(Science and Technology)

基　　金：国家"九七三"重点基础研究项目(2001CB209205)

摘　　要：预喷射技术可以降低噪声和排放,是满足欧Ⅲ以上排放法规的主要解决途径之一。基于电控单体泵燃油喷射系统柴油机进行研究,采用中断环方式实现预喷射控制算法,通过在DDC 2000电控单体泵柴油机上安装缸压传感器和喷油嘴端压力传感器进行试验。结果表明,在单体泵燃油喷射系统上,采用合适的控制算法和执行器驱动,能很好地实现预喷射并取得良好结果。该算法独立于硬件平台,可以用于电控单体泵柴油机和共轨柴油机的喷射控制。Pilot injection technology is one of the main approaches to he used to meet and exceed the European Ⅲ emission criteria for diesel engines, which reduces noise and NO, emissions. An interrupt loop was used for the injection control algorithm for the electronic unit pump. Tests of the control algorithm matched the algorithm with measurements of the cylinder pressure and injection pressure in a DDC2000 diesel engine. The results indicate that pilot injection can he implemented on an electronic unit pump injection system with a proper control algorithm and actuator driver, The algorithm is independent of hardware platform and can be used to control fuel injection of electronic Unit pump diesel engines and rail diesel engines.

关 键 词：柴油机 电控单体泵 预喷射 控制算法 

分 类 号：U27[机械工程—车辆工程]