基于HHT去噪和互相关原理的ABS制动液压力波波速的研究
发布时间:2018-05-18 15:44
本文选题:ABS + 希尔伯特-黄变换 ; 参考:《仪表技术与传感器》2016年02期
【摘要】:汽车防抱死系统(ABS)依靠制动液压力波传递制动压力,对汽车制动效能影响很大。文中利用压力传感器采集ABS制动液压力,对采集的数据进行希尔伯特-黄变换(HHT)去噪,再利用互相关原理对不同刹车盘转速和制动管路长度下的制动液压力波波速进行计算。研究表明,制动液压力波波速可达1 181.8 m/s。
[Abstract]:Anti-lock braking system (ABS) relies on brake fluid pressure wave to transfer braking pressure, which has great influence on vehicle braking efficiency. In this paper, the pressure of ABS brake fluid is collected by pressure sensor, the collected data is de-noised by Hilbert-Huang transform (HHT), and the pressure wave velocity of brake fluid under different brake disc speed and brake pipe length is calculated by cross-correlation principle. The results show that the pressure wave velocity of brake fluid can reach 1 181.8 m / s.
【作者单位】: 中国计量学院机电工程学院;
【基金】:浙江省自然科学基金项目(LY14E050023)
【分类号】:U463.526
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本文编号:1906430
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