摘要
以研究电磁气门驱动(EVA)气门落座软着陆控制为目的,依据EVA装置,建立EVA的数学模型并将其线性化,在此基础上对采用传统闭环控制方法的可行性进行了分析,得出结论:用于仿真的模型与实际情况有差别,难以用于评估控制策略;在小气隙下EVA系统可控性较差,且非常不稳定,采用传统的闭环方法控制电磁气门驱动不具有可行性。
In order to study the valve soft landing of EVA system, an EVA developed by ourselves was modeled for simulation. Based on the model linearized at seating position feasibility analysis of using conventional closedloop control method was conducted. The results show that the model is not validated so well by experiments that is incompetent for control system evaluating; under the condition of very small gaps, the EVA system is extremely difficult to be stabilized and the control authority is low, therefore the conventional closed-loop control method is hard to be used.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2005年第5期59-61,共3页
Chinese Internal Combustion Engine Engineering
基金
国家自然科学基金项目(50175055)
关键词
内燃机
气门机构
电磁气门驱动
建模
软着陆
I. C. Engine
Valve Train
Electromagnetic Valve Actuation
Modeling
Soft Landing
