文章基本信息

标题：Study on dynamic characteristics and control algorithm design for fuel metering valve of high-pressure pump
本地全文：下载
作者：Yi Lu ; Zhe Zuo ; Changlu Zhao 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2018
卷号：51
期号：31
页码：930-935
DOI：10.1016/j.ifacol.2018.10.061
语种：English
出版社：Elsevier
摘要：AbstractHigh rail pressure and multiple injections are crucial to improve diesel engine performance in terms of fuel efficiency and exhaust emission. As a drawback, rail pressure oscillations and complex pressure-wave propagation phenomena have impact on the control accuracy and response speed. Fuel metering valve, installed on the inlet of high-pressure pump, is the main mechanical actuator to adjust the rail pressure value. In this paper, the co-simulation model was established to investigate the dynamic process which is divided into three phases. The motion dead zones of the valve member and spring preload are the main factors for non-linearity working zone of the fuel metering valve. Therefore, the corresponding segmented control algorithm is designed to adjust the rail pressure based on the fuel flow rate and ideally realize synchronization of the control signals and rail pressure response.
关键词：KeywordsFuel metering valveRail pressureMotion dead zoneNon-linear characteristicsSegmented control algorithm