毕业论文移动版

摘要随着社会的发展，环境污染问题和柴油机性能问题一直困扰着柴油机发展的研 究人员。为了将柴油机电控喷油参数进行优化，各式各样的方法被相关人士加以研 究运用。随着计算机技术的高速发展，一些新的方法不停出现。此时，响应面法（RSM）进入了人们的视野。响应面法（RSM）是以统计学和数学为核心，通过近似 方程模拟的优化方法。在运用该方法的基础上来获取输入因素值的近似曲线从而取 得最佳响应值，也就是获取最优化方案。 83509

本文主要根据给定的 ESC 工况试验数据，利用响应面技术，以喷油压力、主预 喷间隔角、喷油正时为试验因子，油耗、Soot 和 NOx 排放的质量流量为响应参数。 选取试验数据来研究，得到试验参数与响应参数之间的多元二次响应面预测模型， 然后改良其参数，得到最佳参数组合。 本文作为以响应面法为优化方法，对柴油机电控喷油参数进行优化研究和设计。 

于此同时，本文探究了柴油机发展过程中面临的局限和问题，了解了柴油机发展现 状。本文进行的分析研究，为柴油机喷油参数优化的课题提供了相应参考，对柴油 机发展中的问题研究有着一定的帮助。 

毕业论文关键词：响应面法（RSM），电控喷油系统；柴油机；最佳优化方案；ESC 工况 

Abstract With the development of society, the problem of environmental pollution and engine performance has been plagued by researchers diesel engine development。 In order to Fuel Injector parameters to optimize a variety of ways is to use research stakeholders。 With the rapid development of computer technology, some new methods constantly appear。 In this case, response surface methodology (RSM) into the people's vision。 Response surface methodology (RSM) based on statistics and mathematics at the core, by approximate optimization equation modeling。 On the basis of the use of the method up to obtain input factor values approximate curve to get the best response, which is to obtain an optimal solution。

In this paper, according to the given conditions ESC test data, response surface techniques to injection pressure, the main pre-injection interval angle, injection timing is factor test, fuel mass flow, Soot and NOx emissions in response to the argument。 Select the test data to study, get a multiple quadratic response surface model predictive test parameters and response parameters, and then improve its parameters to obtain the best combination of parameters。

Herein response surface method for optimizing the method of diesel engine electronically controlled fuel injection parameters were optimized and design。 Meanwhile, this paper explores the limitations and problems faced by the diesel engine development process, to understand the current situation of diesel engine development。 Analysis of this paper, the diesel engine fuel injection parameter optimization problem provides a corresponding reference to the problems in the development of diesel engine research with some help。

Keywords：response surface methodology (RSM);diesel engine; Electronically controlled fuel injection system; Optimization Scheme; ESC conditions

目录 

第一章绪论1 

1。1 研究背景1 

1。2 柴油机发展面临的问题2 

1。2。1 柴油机对环境的影响2 

1。2。2 柴油机性能影响3 

第二章RSM 响应面法的介绍-4 

2。1 响应面分析方法的简介4 

2。2 响应面分析方法的应用5 

2。3 响应面法的发展前景7 

2。4 响应面法在本次研究中的应用8 

第三章柴油机喷油参数优化设计分析-10 

3。1。实验设计的前提条件-10  (责任编辑：qin)