汽车喷油器噪声测量系统的设计

计算机科学 ›› 2018, Vol. 45 ›› Issue (6A): 576-579.

汽车喷油器噪声测量系统的设计

朱均超,王坦,张宝峰

天津理工大学电气电子工程学院天津300384

出版日期:2018-06-20 发布日期:2018-08-03
作者简介:朱均超(1972－),男,副教授,硕士生导师,主要研究方向为检测装置与检测技术,E-mail:zhujunchao@tjut.edu.cn;王坦(1993-),女,硕士生,主要研究方向为传感技术与自动化检测,E-mail:492055384@qq.com(通信作者)。

Design of Noise Measurement System for Automobile Injector

ZHU Jun-chao,WANG Tan,ZHANG Bao-feng

School of Electrical and Electronic Engineering,Tianjin 300384,China

Online:2018-06-20 Published:2018-08-03

摘要/Abstract

摘要： 针对国内外相关标准对喷油器噪声测量技术的要求,设计了一套汽车喷油器噪声测量系统。该系统包括喷油器驱动模块、系统控制模块、系统供油模块、噪声测量模块和人机交互模块。供油模块的压力控制采用薄膜传导结合PID反馈的气动调节方式,提高了压力控制的可靠性和精度;系统软件设计采用Windows VS2010开发平台,利用CAN通讯、RS232等串口通讯技术以及多线程并行技术实现人机交互界面对喷油器工作噪声检测系统的整体控制;基于声压法对汽车喷油器的噪声进行测量和分析,依据测量结果对喷油器的性能进行评价。经实验验证,A计权下的最大声压级和平均声压级均小于标准中的70db(A),满足标准对汽油机喷油器噪声值的要求。

关键词: PID算法, 喷油器, 压力控制, 噪声测量

Abstract: Aiming at the technical requirements of injector noise measurement at home and abroad,a set of noise mea-surement system for automobile injector was designed.The system includes an injector drive module,a system control module,a system oil supply module,a noise measurement module and a man-machine interaction module.The pressure control of oil supply module adopts the pneumatic control method of the membrane conduction combined with the PID feedback to improve the reliability and the precision of pressure control.The system software is designed by using the Windows VS2010 development platform.Using CAN communication,RS232 serial communication technology and multi-thread parallel technology,the whole control of man-machine interaction interface to the noise detection system of injector is achieved.Based on the sound pressure method,the noise of the fuel injector is measured and analyzed,and the performance of the injector is evaluated according to the measurement result.Experimental results show that the maximum sound pressure level and average sound pressure level under A weighting are less than 70db (A) in the standard,meeting the requirements of the standard on fuel tanker’s noise value.

Key words: Injector, Noise measurement, PID algorithm, Pressure control

中图分类号:

TH89

朱均超,王坦,张宝峰. 汽车喷油器噪声测量系统的设计[J]. 计算机科学, 2018, 45(6A): 576-579. https://doi.org/

ZHU Jun-chao,WANG Tan,ZHANG Bao-feng. Design of Noise Measurement System for Automobile Injector[J]. Computer Science, 2018, 45(6A): 576-579. https://doi.org/

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