对置二冲程柴油机燃油电控系统开发  

The Development of Electronic Control Unit for Two-Stroke Opposed-Piston Diesel Engine

作　　者：张永志[1] 刘波澜[1] 左哲[1] 

机构地区：[1]北京理工大学机械与车辆学院车辆动力系统技术重点学科实验室,北京100081

出　　处：《汽车工程学报》2014年第3期201-206,共6页Chinese Journal of Automotive Engineering

基　　金：工信部基础研究项目(Dedp1004)

摘　　要：分析对置二冲程柴油机工作特点及其对燃油系统的需求,进行燃油系统电控单元开发。根据对置二冲程柴油机大容积变化率等特点,采用电控高压共轨燃油系统。电控系统采用MPC5554微处理器,利用其两个独立时间处理单元(eTPU_A模块和eTPU_B模块)进行双喷油器协同控制。按照模块化设计方法进行了电控系统的软硬件设计,采用可编程逻辑器件,在台架上进行高压共轨轨压控制及不同喷油脉宽和压力下的喷油量试验。结果表明,所设计的电控系统可以满足对置二冲程柴油机对同一缸的两个喷油器同时工作的要求。The paper analyzed the working characteristics of the two-stroke opposed-piston diesel engine and its demand for the fuel system. And then the electronic control unit for fuel system was developed.Based on some characteristics of two-strokeopposed-pistondiesel engine, such as large volume change rate, the electronically controlled high-pressure common rail （HPCR） fuel system was chosen. The electronic control unit took MPC5554 as microcontroller and made use of two separate Time Processing Units （eTPU_A and eTPU_B） to control dual injectors cooperatively. According to modularization design method, the hardware and software of the electronic control unit were designed, using programmable logic devices, and experiments on rail pressure control and filel quantity at different pulse and rail pressure were carried out on engine test bench. The experimental results show that the electronic control unit can meet the two-stroke opposedpistondiesel engine＇s requirementsfor two injectors in the same cylinder to worksimultaneously.

关 键 词：对置二冲程柴油机 电控系统 模块化设计 电控高压共轨燃油系统 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程]