HEV辅助动力系统消声器设计  

Design of Muffler of the Auxiliary Power System in an HEV

作　　者：雷艳[1] 吴斌[1] 周大森[1] 郑孟磊[1] 张博彦[1] 

机构地区：[1]北京工业大学环境与能源工程学院,北京100022

出　　处：《北京工业大学学报》2006年第12期1121-1124,共4页Journal of Beijing University of Technology

基　　金：北京市教委重点项目(P050501-02)

摘　　要：为了降低混合电动汽车中的辅助动力系统(一台小型汽油机)的噪声,运用消声器一维消声计算模型设计排气消声器,并进行了该汽油机的噪声实验.实验结果表明,该消声器对降低中、高频噪声效果较好,但对低频噪声效果不是很明显;在对该汽油机动力性能影响不大的情况下,在整个转速范围内,排气噪声平均下降5 dB左右,可以有效降低排气噪声.To lower the noise of auxiliary power system （APS） in the HEV, which is a small-volume gasoline engine in this paper, an exhaust muffler was used. The muffler was calculated and designed on the basis of a one-dimension model. The.noise experiments have been carried out on a test bench. From the noise experimental results, it could be concluded that the muffler had especially much more effects on both high and medium frequencies than on low frequencies. And the muffler lowered engine noise about 5 dB during the whole engine speed without reducing the engine power much.

关 键 词：混和电动汽车 辅助动力系统 汽油机 消声器 噪声 

分 类 号：U469.72[机械工程—车辆工程]