基于CPLD的共轨喷油器电磁阀电流调制系统  

Current Modulation System Based on CPLD for Electromagnetic Valve of Common-rail Injector

作　　者：俞谢斌[1] 曾伟[1] 谢宏斌[1] 丁珏[1] 蒋诚[1] 

机构地区：[1]中国一汽无锡油泵油嘴研究所,江苏无锡214063

出　　处：《现代车用动力》2014年第1期24-26,共3页Modern Vehicle Power

摘　　要：根据共轨喷油器电磁阀驱动特点,设计了基于复杂可编程逻辑器件(CPLD)的电流调制系统,实现了对电磁阀的驱动电流控制和短路保护,系统仅需要微控制器(MCU)提供时钟和驱动脉宽即可完成喷油时序,与MCU直接控制的驱动系统相比,降低了硬件资源要求和软件设计复杂度。According to the characteristic of electromagnetic valve of common-rail injector,current modulation system based on CPLD is designed. Current modulation and short-circuit protection are realized. Only clock and drive pulse-width are required for the system to accomplish injection timing control. Compared with system controlled by MCU directly,the requirement of hardware resource and complexity of software are decreased.

关 键 词：柴油机 共轨喷油器 电磁阀 电流调制 CPLD 

分 类 号：TK423.8[动力工程及工程热物理—动力机械及工程]