文档介绍：郑州交通职业学院
毕业论文
论文题目: 汽车发动机怠速技术的研究
所属系别机电工程系
专业班级 09汽电3班
姓名
学号
指导教师
撰写日期 2011年 7月
摘要
怠速控制是汽车发动机电子控制的一个【1】重要内容。对怠速进行有效的控制对于提高汽车的燃油经济性,乘坐舒适性和降低排放有很大的意义。
首先简要介绍了汽车发动机怠速控制的意义、研究现状及发展趋势,回顾了均值模型。
对发动机怠速控制策略进行了详细的介绍。发动机控制策略是针对发动机各个运行工况以及发动机自身的工作特点和性能制定的一套控制思想,并通过各个执行机构实现对发动机有效和优化控制,是发动机的各项性能指标达到最佳的效果。
最后,针对怠速控制对已知扰动的印制问题设计了一种神经网络预测控制器。对于已知扰动的控制问题可以归结为怠速控制能够不断调整汽车发动机运转,跟踪变化的指定正常怠速转速问题。
关键词:怠速控制,怠速平均值模型,怠速控制策略,自适应模糊控制
Abstract
The idling regime control is a motor car engine electronic control important content. Carries on the effective control to the idling regime regarding to enhance the automobile the fuel oil efficiency, fortableness and reduces the emissions to have the very big significance。
First was brief introduced the motor car engine idling regime control significance, the research present situation and the trend of development, reviewed the domestic smiling tool to establish the engine idling regime mean value model.。
Has carried on the detailed introduction to the engine idling regime control strategy. The engine control strategy is aims at the engine each movement operating mode as well as the engine own work characteristic and a performance formulation set of control thought, and through each implementing agency realization to engine effective and optimized control, is the engine each performance index achieves the best effect.。
Finally, controlled in view of the idling regime to the known perturbation print question has designed one kind of work forecast controller. May sum up regarding the known perturbation control question for the idling regime control can the continual readjustment motor car engine revolution, the track change assign the normal idling regime rotational speed question。
Key Words:data structures, object-oriented, visual, algorithm way, class
目录
1 引言 1
2 发动机怠速的含义 1
怠速状态的定义 1
1
1
怠速不稳 2
4
5
怠速熄火怎么办 5
怠速过高 5
3 怠速控制系统 5
控制系统简介