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| 基于LS-SVM模型的无级变速器夹紧力控制系统故障诊断 | |
| 引用本文： | 刘金刚,王登峰,何霞辉,周云山.基于LS-SVM模型的无级变速器夹紧力控制系统故障诊断[J].汽车工程,2009,31(4). |
| 作者姓名： | 刘金刚 王登峰 何霞辉 周云山 |
| 作者单位： | 1. 湘潭大学机械工程学院,湘潭,411105 2. 吉林大学汽车工程学院,长春,130025 3. 湖南大学,汽车车身先进设计制造国家重点实验室,长沙,410082 |
| 基金项目： | 国家高技术研究发展计划(863计划)，山东省泰山学者计划 |
| 摘 要： | 在不增加硬件成本和过大的运算量的前提下,研究了基于模型的无级变速器夹紧力控制系统故障诊断方法.提出了根据测得的信号以及全局和部分元件诊断模型的输出结果来完成故障隔离与定位的诊断策略;针对系统的非线性特征,采用最小二乘支持向量机建立反映其输入输出关系的非线性预测模型.测试结果表明所建立的故障自诊断系统具有较高的精度和反应速度,可以粗略地实现故障的隔离和定位. |
| 关 键 词： | 无级变速器 夹紧力控制系统 故障诊断 最小二乘支持向量机 |
Fault Diagnosis of CVT Clamping Force Control System Based on Least Squares Support Vector Machine Model |
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| Liu Jingang,Wang Dengfeng,He Xiahui,Zhou Yunshan.Fault Diagnosis of CVT Clamping Force Control System Based on Least Squares Support Vector Machine Model[J].Automotive Engineering,2009,31(4). | |
| Authors: | Liu Jingang Wang Dengfeng He Xiahui Zhou Yunshan |
| Institution: | Liu Jingang1,Wang Dengfeng2,He Xiahui3 & Zhou Yunshan31.College of Mechanical Engineering,Xiangtan University,Xiangtan 411105,2.College of Automotive Engineering,Jilin University,Changchun 130025,3.Hunan University,State Key Laboratory of Advanced Design , Manufacturing for Vehicle Body,Changsha 410082 |
| Abstract: | On the premise of without additional hardware cost and excessive computing effort,a model-based fault diagnosis method for the clamping force control system in continuously variable transmission(CVT) is studied.A diagnosis strategy is proposed,which accomplishes fault isolation and location based on the measured signal and the outputs of the diagnosis models for both global system and some components.In view of the nonlinear feature of the system,least squares support vector machine(LS-SVM) is used to estab... |
| Keywords: | CVT clamping force control system fault diagnosis LS-SVM |
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