基于PSPICE喷油器电磁阀双电源双边驱动电路的设计与优化研究  

Research on Design and Optimization of Solenoid Valve Double Power Bilateral Drive Circuit Based on PSPICE

作　　者：陈礼勇[1,2] 刘二喜[1] 郭树满[1] 苏万华[1] 

机构地区：[1]天津大学内燃机燃烧学国家重点实验室,天津300072 [2]郑州航院机电学院,郑州450015

出　　处：《内燃机工程》2015年第1期81-86,共6页Chinese Internal Combustion Engine Engineering

基　　金：国家"九七三"重点基础研究发展规划项目(2007CB210001);国家"八六三"高技术研究发展计划项目(2012AA111714)

摘　　要：为了提高喷油器电磁阀的高速驱动性能,建立了精确的电控柴油机电磁阀驱动模块的PSPICE模型,据此仿真分析了驱动方式和续流方式、驱动电压及续流回馈电压对电磁阀开启、关闭响应性影响规律。设计了电磁阀双电源双边驱动钳压续流电路,进行了工作过程的数学分析和参数优化。试验结果表明:该驱动电路提高了各个通道的喷油一致性,小油量(0.5ms喷油脉宽)时各驱动通道的最大偏差率为2.21%,相对标准差为1.41%,同时五次喷油下缸压峰值波动率为0.57%,该驱动电路满足高效清洁燃烧系统对喷油器驱动控制精度和各缸喷油规律一致性的要求。In order to improve the high-speed drive performance of fuel injector solenoid valve used in electronically controlled diesel engine, a precise PSPICE model was developed for the drive circuit of the solenoid valve. With the model, the impact of drive circuit and after-flow circuit as well as drive voltage and after-flow feedback voltage on the responses of solenoid valve opening and closing were studied. Based on these studies, solenoid valve double power bilateral drive circuit and voltage clamp circuit were designed and their parameters were analyzed and optimized. The test results show that the optimized drive circuit improves the consistency of each drive channel with the maximum variation of small delivery being 2.21%, the relative standard deviation of various drive channels 1.41%, and the fluctuation of peak cylinder pressure only 0.57% within five injections. It can be concluded that the designed circuits meet the technical requirement of effective clean combustion system for the accuracy of drive control of injection law and injection uniformity of each cylinder.

关 键 词：内燃机 电磁阀 驱动电路 PSPICE 双边驱动 钳压续流 

分 类 号：TK423.8[动力工程及工程热物理—动力机械及工程]