Abstract
Aiming at the inherent problems of non-direct-drive injectors, such as long oil circuits and a difficult precise control of the needle stroke, based on the structure of a direct-drive injector and combined with the demand for the needle drive of a truck diesel injector, this study designs and fabricates a giant magnetostrictive actuator for direct-drive injectors. A simplified model of a giant magnetostrictive actuator is established, which mainly simplifies the magnetization model to facilitate the subsequent integrated modeling of the fuel injector. An actuator output displacement test system was built, and the output waveform and frequency characteristics of the actuator were analyzed. It was found that the experimental results were in good agreement with the calculated results of the model, and the average relative error of the amplitude was 3.26%, while the average relative error of the phase difference was 3.83%, which verifies the correctness of the model. This research enriches the modeling method of giant magnetostrictive actuators and has an important reference value for the research and design of fuel injectors.
Subject
Control and Optimization,Control and Systems Engineering
Reference20 articles.
1. Zhou, S., and Gao, X. (2017). Magnetostrictive Materia, Metallurgical Industry Press. [1st ed.].
2. Engdahl, G. (2000). Handbook of Giant Magnetostrictive Materials, Academic Press.
3. Study on Model and Characteristics Analysis of the Magnetostrictive Drive Component of Automotive Fuel Injection System;Liu;Chin. J. Sens. Actuators,2016
4. A Model of Giant Magnetostrictive Actuator Used in Automobile Engine Fuel Injection System;Wang;Int. J. Serv. Comput. Oriented Manuf.,2013
5. Tanaka, H., Sato, Y., and Urai, T. (2001). Development of a Common-Rail Proportional Injector Controlled by a Tandem Arrayed Gi-ant-Magnetostrictive-Actuator, SAE International. 2001-01-3182, SAE Technical Paper.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献