柴油机单体泵喷射控制EPS系统设计与试验  

Design and Experiment of Electronic Injection System for Unit Pump on Diesel Engine

作　　者：李素文[1] 于秀敏[2] 王超[1] 

机构地区：[1]中国第一汽车集团公司技术中心 [2]吉林大学汽车工程学院

出　　处：《农业机械学报》2008年第1期30-32,共3页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家“863”高技术研究发展计划资助项目(项目编号:2003AA1Z2141)

摘　　要：针对柴油机单体泵喷射系统高实时性要求,通过对单体泵控制原理的分析,采用位置同步、角度时钟驱动概念,设计了发动机位置同步系统硬件和喷射系统软件,最高喷射精度达到0.0234°CA,电磁阀峰值和保持电流分别为12A和8A,试验结果表明,该系统不仅实现了快速精确控制喷油,而且具有冗余控制功能。Based on the analysis of unit pump control principle, the hardware and software were designed according to high real-time performance of injection system on diesel engine. Accurate and real-time injection control was realized by using engine position synchronization （EPS） and angle clock conversion concept. The highest injection accuracy is reached to 0.023 4 degree of crank angle, solenoid valve peak current is 12 A and solenoid valve hold current is 8 A. The experimental results show that the whole system can control injection accurately and includes backup function of crankshaft signal.

关 键 词：柴油机 单体泵 喷射系统 控制 

分 类 号：TK471[动力工程及工程热物理—动力机械及工程]