基于数据流动发动机动力不足故障诊断方法研究

周 平;杨浩泉

doi:10.3981/j.issn.1000-7857.2011.03.007

科技导报 >

2011 , Vol. 29 >Issue 11-03: 48 - 51

DOI: https://doi.org/10.3981/j.issn.1000-7857.2011.03.007

研究论文

基于数据流动发动机动力不足故障诊断方法研究

周平;杨浩泉

展开

上海第二工业大学机电工程学院，上海 201209

收稿日期: 2010-05-12

修回日期: 2010-11-02

网络出版日期: 2011-01-28

收起

Diagnosis Method to Power Shortage Fault in Engine Based on the Data-stream

Expand

Received date: 2010-05-12

Revised date: 2010-11-02

Online published: 2011-01-28

Fold

摘要

发动机动力不足是影响汽车使用性能的常见故障之一。由于涉及供油、点火、怠速、排放等多个子系统，是汽车故障诊断的难点。本文基于发动机控制原理，阐述了发动机动力不足的3类原因，给出了故障状态下混合气特征值和点火提前角的变化规律，建立了每转喷油时间等5项参数的关联模型，使参数与故障的关联度大大增加，增强了参数在故障诊断时的适用性。由此出发，比较全面地分析了可能发生故障的部位，并给出了故障诊断流程。

关键词： 发动机; 动力不足; 故障诊断; 诊断流程

本文引用格式

周平;杨浩泉 . 基于数据流动发动机动力不足故障诊断方法研究[J]. 科技导报, 2011 , 29(11-03) : 48 -51 . DOI: 10.3981/j.issn.1000-7857.2011.03.007

Abstract

Insufficient driving force is one of malfunctions that frequently occurs for engines, Due to complicated causes and overloading conditions, it is a difficult point in engine malfunction diagnoses. Based on the engine control principle, from a new visual angle, four kinds of causes of insufficient engine driving force are discussed, the variations of mixture characteristic values and the ignition angles in the fault conditions are obtained, together with a relationship among five parameters in fault conditions, including the injection time of each turn, which increases the correlation of these parameters greatly, and enhances their applicability in fault diagnosis. Based on this method, the locations may be identified where failure may occur.

Key words： engine; driving force insufficient; malfunction diagnose; diagnose process

Options

文章导航

摘要

本文引用格式

Abstract

联系我们

访问统计

模态框（Modal）标题

摘要

本文引用格式

Abstract

联系我们

访问统计