| 发动机电磁气门驱动的LQR法软着陆控制 |
| |
| 引用本文： | 黄荣纬,赵雨东.发动机电磁气门驱动的LQR法软着陆控制[J].清华大学学报(自然科学版)网络.预览,2007(8). |
| |
| 作者姓名： | 黄荣纬 赵雨东 |
| |
| 作者单位： | 清华大学汽车安全与节能国家重点实验室 北京100084 |
| |
| 基金项目： | 国家自然科学基金资助项目(50175055) |
| |
| 摘 要： | 为减轻发动机电磁气门驱动(electromagnetic valve actuation,EVA)的落座冲击,对EVA初始化和过渡过程的前期都用开环控制,运动后期,即当衔铁/气门接近落座位置时采用线性二次调节器(linear quadratic regulator,LQR)法控制落座速度。并对作者研制的EVA建立了数学模型,将其在落座位置附近线性化,编制了控制软件;在EVA实验测试系统上实现了初始化、单次过渡过程控制以及EVA连续动作控制;LQR法的3个状态量是实测的衔铁/气门位移、速度和线圈电流。结果表明,EVA初始化、单次过渡过程以及EVA连续动作的落座速度分别是0.05m/s、0.06m/s和0.20m/s。
|
| 关 键 词： | 汽车发动机 气门机构 可变气门驱动 电磁气门驱动 |
Soft landing control of electromagnetic valve actuation for engines by using LQR |
| |
| Authors: | HUANG Rongwei ZHAO Yudong |
| |
| Abstract: | To eliminate valve seating impacts of electromagnetic valve actuation (EVA) for automotive engines, the early stages of both the initialization and the transition are open-loop controlled in EVA systems. The later stage when the armature/valve closes to the seating position is then controlled using a linear quadratic regulator (LQR). A control system was developed based on an EVA control model linearized near the seating position. Tests of the EVA show a seating velocity of 0.05 m/s during initialization, 0.06 m/s during a one way transition, and 0.20 m/s during continuous operation. |
| |
| Keywords: | automotive engines valvetrain variable valve actuation electromagnetic valve actuation |
| 本文献已被 CNKI 等数据库收录！ |
|
