车用燃气发动机理想空燃比的融合控制算法  

A Fusion Control Algorithm of Ideal Air Fuel Ratio in Gas Vehicle Engines

作　　者：杨张利[1] YANG Zhang-li(School of Architecture and Materials,Chongqing College of Electronic Engineering,Chongqing 401331,China)

机构地区：[1]重庆电子工程职业学院建筑与材料学院,重庆401331

出　　处：《西南大学学报（自然科学版）》2018年第8期172-176,共5页Journal of Southwest University(Natural Science Edition)

基　　金：重庆市教委科技项目(KJ1729407)

摘　　要：针对车用燃气发动机空燃比难于实时精确控制,探讨了一种最优空燃比融合控制策略.首先分析了燃烧室的控制论特性,研究了优化的控制策略,基于HSIC动静态特性与误差特征识别模型,构造了基于HSIC控制算法.在Matlab环境下,分别采用基于仿人智能融合控制与Smith最优PID控制的算法作了仿真对比研究,系统响应验证了融合控制算法优于Smith最优PID控制策略.仿真结果表明,采用融合控制算法实现对燃气发动机的最优空燃比控制是合理与可取的.Taking into consideration the fact that it is difficult to realize accurate real-time control of the airfuel ratio of gas vehicle engines,this paper explores a sort of fusion control strategy of optimal air-fuel ratio for gas fuel engines.The cybernetics characteristics of the combustion room are analyzed and an optimization control strategy is studied.Then,based on the dynamic and static characteristics of HSIC and the error characteristic recognition model,an HSIC-based control algorithm is constructed.Finally,under the condition of Matlab environment,a comparative research of simulation is made with the algorithms based on humanois intelligence fusion control and optimal Smith-PID control.The system response demonstrates the superiority of the fusion control strategy over the optimal Smith-PID control strategy.Simulation results show that adopting the fusion control algorithm to realize the optimal air fuel ratio control of gas fuel engines is reasonable and advisable.

关 键 词：汽车发动机 空燃比 优化控制 融合控制策略 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]