作者：汪科任, 孙仁云, 吴聿东, 严浩铭
作者单位：西华大学交通与汽车工程学院, 四川 成都 610039
关键词：CNG高速电磁阀; PWM; 试验和分析
摘要：
针对CNG高速电磁阀驱动性能问题,提出基于脉宽调制的方法并进行试验分析。结果表明:该驱动电路能够实现高压打通低压保持喷射的功能,符合喷射规律;可得出驱动电压、PWM的周期、PWM的占空比都将对电磁阀的驱动能力以及维持喷射能力产生不同的影响,3者的有机调节可实现理想的电流波形。
CNG high-speed electromagnetic valve drive test analysis based on pulse width modulation
WANG Ke-ren, SUN Ren-yun, WU Yu-dong, YAN Hao-ming
School of Transportation and Automotive Engineering, Xihua University, Chengdu 610039, China
Abstract: For the problems of CNG high-speed solenoid valve drive performance, the method was proposed based on pulse width modulation experiment analysis. Results show that the drive circuit can realize high pressure to low pressure to maintain the function of the injection, which conforms to the law of injection. It can be concluded that the driving voltage, the PWM cycle of the PWM duty cycle will drive ability of solenoid valve and maintain injection has the different impact on the ability, three organic regulation can realize the ideal conclusion of the current waveform.
Keywords: CNG high-speed solenoid valve; pulse width modulation; test and analysis
2014, 40(5): 149-152 收稿日期: 2013-10-9;收到修改稿日期: 2013-12-16
基金项目:
作者简介: 汪科任(1987-),男,四川乐山市人,硕士研究生,专业方向为天然气电控发动机ECU等。
参考文献
[1] 宋军,李书泽. 高速电磁阀驱动电路设计及试验分析[J].汽车工程,2005,27(5):547-548.
[2] 陈维龙,王辉. 高速电磁阀的驱动方式探讨[J]. 中国机电工业,2001,22(4):31-32.
[3] 连长震,李建秋. 电控燃油喷射用高速电磁阀驱动方式研究[J]. 汽车工程,2002,24(4):312.
[4] 孙同景. Freescale 9S12十六位单片机原理及嵌入式开发技术[M]. 北京:机械工业出版社,2007:59-87.
[5] 张科勋. 电控柴油机电磁阀驱动电路优化设计[J]. 内燃机工程,2005,26(2):1-4.
[6] Mooney J D. Drive circuit modeling and analysis of electronically controlled fuel injectors for diesel engines[J]. SAE,2003,20(2):371-382.
[7] Tang D, Hu Z Q, Luo F Q. Study and application of the heat release rate co-mputation fordual2fuelengine[J].Transactions of the Chinese Society for Agricultural Machinery,2007,38(2):45-47.
[8] Monyem A, Gerpen J H V. The effect of biodiesel oxidation on engine performance and emissions[J]. Biomass and Bioenergy,2001,20(4):317-325.
[9] Curran S J, lrick D K. Onroad emissions Evaluation of Student-Produced Biodiesel[C]//SAE Paper,2009:01-2674.
