| 控制策略对发动机振动噪声水平影响的研究 |
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| 引用本文： | 林学东,袁方恩,黄丫,崔磊,沈小东.控制策略对发动机振动噪声水平影响的研究[J].车用发动机,2011(1):49-51. |
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| 作者姓名： | 林学东 袁方恩 黄丫 崔磊 沈小东 |
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| 作者单位： | 吉林大学汽车动态模拟国家重点实验室; |
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| 摘 要： | 4行程发动机曲轴振动是其主要振动噪声源,对于多点电控喷射系统,各缸不均匀性的控制策略直接影响曲轴转速的波动.为此对A,B两台样机在采用S型和D型两种不同控制系统时的整机噪声进行了对比试验分析.结果表明,S型和D型系统对各缸不均匀性控制策略的不同造成样机噪声水平不同,样机A振动噪声较大的主要因为不仅在于其整机结构的频响特...
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| 关 键 词： | 电控燃油喷射系统 振动 噪声 控制策略 |
The Influence of Control Strategy on Engine Vibration Noise |
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| LIN Xue-dong,YUAN Fang-en,HUANG Ya,CUI Lei,SHEN Xiao-dong.The Influence of Control Strategy on Engine Vibration Noise[J].Vehicle Engine,2011(1):49-51. |
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| Authors: | LIN Xue-dong YUAN Fang-en HUANG Ya CUI Lei SHEN Xiao-dong |
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| Institution: | LIN Xue-dong,YUAN Fang-en,HUANG Ya,CUI Lei,SHEN Xiao-dong(State Key Laboratory of Automobile Dynamic Simulation,Jilin University,Changchun 130025,China) |
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| Abstract: | The crankshaft vibration was the main source of vibration noise for a 4-stroke engine.For the multi-point injection system,the control strategy of working variance between cylinders directly affected the fluctuation of crankshaft speed.Accordingly,the influences of S-type and D-type control systems,which had different control strategies and were separately mounted to A and B engine,on engine overall noise were compared by the experiment.The results show that the noises produced by S-type and D-type control ... |
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| Keywords: | electronic-controlled fuel injection system vibration noise control strategy |
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