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。
Pressure wave velocity of brake fluid of Anti-lock braking system（ ABS） have an obvious effect on brake ability of automobile,which transfers braking pressure for braking disc. The brake fluid pressure was acquired by the pressure transmitters in an ABS,and with Hilbert-huang transform（ HHT） de-noised. The pressure wave velocities of brake fluid were calculated by the cross-correlation principle under different rotating speeds and braking pipe lengths. The results show that the pressure wave velocity of brake fluid is up to 1 181. 8m/s.
出处
《仪表技术与传感器》
CSCD
北大核心
2016年第2期107-110,共4页
Instrument Technique and Sensor
基金
浙江省自然科学基金项目(LY14E050023)
关键词
ABS
希尔伯特-黄变换
互相关原理
压力波波速
anti-lock braking system（ABS）
Hilbert-huang transform（HHT）
cross-correlation principle
pressure wave velocity
