高压共轨式柴油机电磁阀驱动响应性研究  

Research on Responsibility of Solenoid Valve Driver Circuit For High Pressure Common Rail Diesel Engine

作　　者：徐权奎[1] 祝轲卿[1] 陈自强[1] 孙佩生[1] 杨林[1] 

机构地区：[1]上海交通大学汽车电子技术研究所,上海200030

出　　处：《内燃机工程》2007年第3期15-19,共5页Chinese Internal Combustion Engine Engineering

摘　　要：建立了高压共轨式柴油机电磁阀驱动电路的数学模型。通过对模型的分析,研究了驱动电压、元器件特性、驱动方式对电控柴油机电磁阀的开启以及关闭响应的影响并通过实验验证了该模型的正确性。讨论了在电流进入保持时,采用脉宽调制(PWM)的驱动方式,驱动电压与脉宽调制频率、电流波动间的关系。设计了采用高低电源驱动的电控柴油机电磁阀驱动电路。该电路驱动电控柴油机电磁阀时,驱动电流从0提升到峰值电流10A仅需要63μs,驱动电流从保持的5A降低到0．3A时仅需要35μs,满足电控柴油机对电磁阀驱动电路的严格要求。A model for the solenoid valve driving circuit of high pressure common rail diesel engine was created in this paper. According to this module, the effects of both driving voltage and characteristics of parts on open responsibility and close responsibility were discussed and experimented in this paper. At the same time, the relations between the driving voltage, the frequency of pulse width modulation and fluctuate of driving current were also investigated. According to these studies, an ultra fast and low power dissipation solenoid valve driver module was designed. The experiments showed that it takes only 63μs for the current rising from 0 A to peak current 10 A and 35μs for the current failing from hold current 5 A to shut down current 0.3 A, which meets the strict requirements of the solenoid valve driving circuit for electrically controlled diesel engines.

关 键 词：内燃机 高压共轨 柴油机 电磁阀 驱动电路 仿真 响应性 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程]