柴油机燃油系统电液复合调速器动态特性数学建模  

Dynamic characteristics mathematical modeling of electro-hydraulic compound governor of fuel system for diesel engines

作　　者：曲志林 赵永超 杨军 白云 QU Zhilin;ZHAO Yongchao;YANG Jun;BAI Yun(Weichai Power Co.,Ltd.,Weifang 261061,China;Weichai Heavy Machinery Co.,Ltd.,Weifang 261108,China;School of Mechanical Engineering,Yanshan University,Qinhuangdao 066000,China)

机构地区：[1]潍柴动力股份有限公司,山东潍坊261061 [2]潍柴重机股份有限公司,山东潍坊261108 [3]燕山大学机械工程学院,河北秦皇岛066000

出　　处：《内燃机与动力装置》2025年第1期38-44,共7页Internal Combustion Engine & Powerplant

基　　金：国家自然科学基金项目(52271334);河北省自然科学基金项目(E2024203088)。

摘　　要：为提高柴油机在负载变化时的转速稳定性及工作效率,针对某柴油机燃油系统电液复合调速器的动态特性进行数学建模;将电液复合调速器组成划分为机械调速部分、气动调速部分、动力输出油缸部分、缓冲活塞和喷嘴挡板阀部分,分析其工作原理;根据各部分具体受力分别对五大部分的关键部件建立数学模型,分别得到该电液复合调速器传动部分、调速系统Y_(1)和调速系统Y_(2)的传递函数方框图,为电液复合调速器的性能分析和设计开发提供理论参考。To improve the speed stability and working efficiency of diesel engines during load changes,a mathematical modeling study is conducted on the dynamic characteristics of an electro-hydraulic compound governor for a certain diesel engine fuel system.The composition and working principle of the electro-hydraulic compound governor for fuel system of a diesel engine are analyzed.It is divided into the mechanical speed regulating module,the pneumatic speed regulating module,the power output cylinder module,the buffer piston and the nozzle flapper valve module.According to the specific stress conditions of each part,the mathematical models of the key components of the five major module are established respectively.The transfer function block diagram of the transmission part,the speed control system Y_(1) and the speed control system Y_(2) of the electro-hydraulic compound governor are obtained by the mathematical model,which provide a theoretical reference for the performance analysis and design of the electro-hydraulic compound governor.

关 键 词：柴油机 燃油系统 电液复合调速器 数学建模 方框图 

分 类 号：TK421.4[动力工程及工程热物理—动力机械及工程]