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Development of Electromagnetic Valve Actuator and Application to Combustion Control of Automobile Engine

电磁阀执行器的研制及其在汽车发动机燃烧控制中的应用

基本信息

批准号：
17360104
负责人：
OKADA Yohji
金额：
$ 5.95万
依托单位：
IBARAKI UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17360104/
关键词：
Engine Valve Electromagnetic Actuator HCCI Control High Speed Actuator Engine Control PM Bias

项目摘要

This research proposes new two types of electromagnetic valve actuator for automobile engine. The first proposed actuator uses permanent magnet (PM) in the middle of actuator stems vertically. In addition the electromagnets are installed in the both sides of the actuator. This idea reduces the driving power drastically than the conventional solenoid type one. The experimental results showed the effectiveness of variable valve operation. The actuator is installed on the inlet valve of the test engine and homogeneous charge compression ignition (HCCI) combustion was tested. But there were problems with the limited variable of valve timing and the weak robustness of the temperature change. To achieve further miniaturization and high-speed drive, a new actuator was designed. The redesigned actuator was fabricated and tested. The results showed the extended variable range of valve timing than the previous one. Next, completely new construction of actuator was proposed addition to the re-designed one. This is called High Density (HD) type actuator. The actuator is designed using the FEM analysis and fabricated. The experimental results showed higher speed, but the driving energy becomes greater. Also the robustness and the reliability has some problems which should be solved in the near future.

本研究提出了两种新型的汽车发动机电磁气门执行器。第一个提出的执行器使用永磁体（PM）在执行器的中间垂直杆。此外，电磁铁安装在执行器的两侧。这个想法大大降低了驱动功率比传统的螺线管型一个。实验结果表明了可变阀门操作的有效性。将执行器安装在试验发动机的进气阀上，进行均质压缩点火（HCCI）燃烧试验。但存在配气正时变量有限、温度变化鲁棒性较弱等问题。为进一步实现小型化和高速驱动，设计了一种新型驱动器。对重新设计的驱动器进行了制造和测试。结果表明，该方法可扩大配气正时的可变范围。其次，在重新设计驱动器的基础上，提出了全新的驱动器结构。这被称为高密度（HD）型致动器。采用有限元分析方法设计并制作了执行机构。实验结果表明，速度越快，驱动能量越大。同时在鲁棒性和可靠性方面也存在一些有待解决的问题。