电磁驱动配气机构气门升程精度自动控制方法  

Automatic Control Method for Valve Lift Accuracy of Electromagnetically Driven Valve Train

作　　者：王飞 WANG Fei(School of Automotive Engineering,Anhui Vocational and Technical College,Hefei 230011,China)

机构地区：[1]安徽职业技术学院汽车工程学院,安徽合肥230011

出　　处：《辽东学院学报（自然科学版）》2024年第1期24-30,共7页Journal of Eastern Liaoning University:Natural Science Edition

基　　金：安徽省高校科学研究项目(2022AH052068);安徽省高校科学研究项目(2023AH040200);安徽省高校科学研究项目(2023AH051447)。

摘　　要：为提升气门升程精度控制效果,提出电磁驱动配气机构气门升程精度自适应控制方法。首先,根据气门升程的控制需求,明确最大落座速度及气门运动的过渡时长,创建可变气门动力学模型;然后结合模糊PID控制器搭建气门升程精度的控制框架,调节扭矩信号的实际值和参考值间的误差;最后,通过对广义误差的不断迭代,输出最优迭代条件下的控制参数,实现电磁驱动配气机构气门升程精度的自适应控制。实验结果表明,所提方法的可变气门系统的负压损失值较低,并具有较好的自适应控制效果,可满足不同工况下的精度控制要求。In order to improve the accuracy control effect of valve lift,an adaptive control method for valve lift accuracy of electromagnetically driven valve train was proposed.Firstly,based on the control requirements of valve lift,the maximum seating speed and the transition time of valve movement were determined,and thereby a dynamic model of variable valve was established.Then,combined with a fuzzy PID controller,a control framework for valve lift accuracy was made and the errors of the torque signal between the actual value and the reference value were adjusted.Finally,continuous iteration of the generalized error,the control parameters under the optimal iteration conditions were output to achieve adaptive accuracy control of the model.The experimental results indicate that this method has lower negative pressure loss of the variable valve system and better adaptive control effect,which can meet the accuracy requirements under different working conditions.

关 键 词：电磁驱动 配气机构 气门升程 精度控制 

分 类 号：TK417[动力工程及工程热物理—动力机械及工程]