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.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2007年第3期15-19,共5页
Chinese Internal Combustion Engine Engineering
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
IC engine
high pressure common rail
diesel engine
solenoid valve
driver circuit
simulation
responsibility
作者简介
徐权奎（1981-），男，博士生，主葵研究方向为柴油机电子控制单元ECU的开发，E—mail：xqk@sjtu．edu．cn。
