大功率AT电液换挡执行机构动态特性研究  

Dynamic Analysis of Electro-hydraulic Shifting Actuator for High-power Automatic Transmission

作　　者：孟飞[1] 黎晓然 陈慧岩[1] 张美荣 

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]内蒙古第一机械集团有限公司车辆工程研究院,内蒙古包头014030

出　　处：《液压与气动》2014年第10期17-20,共4页Chinese Hydraulics & Pneumatics

基　　金：国家"863"计划项目(2012AA111713)

摘　　要：为了提高自动变速器中离合器缓冲控制的精度,开展了对大功率液力机械自动变速器电液换挡回路的动态特性研究。分析了大功率液力机械自动变速器基本结构和工作原理,建立了电液换挡回路的AMESim模型,得到了在阶跃信号响应下电液换挡回路中关键参数随时间变化历程图。通过对结果的分析可得:该换挡回路响应迅速、稳定,能够满足自动变速器对电液换挡回路快速、精确的要求。In order to improve the precision of the clutch buffer control for the automatic transmission, the research is carried out focusing on the dynamic performance of the electro-hydraulic shifting actuator for the high-power automatic transmission. A dynamic model is developed to study the dynamic characteristic of the electro-hydraulic shifting actuator by the software AMESim based on the structure and operating principle of the system. The simulation study shows that the electro-hydraulic shifting actuator is stable and of quick response, and it can meet require- ments for automatic transmission controllers.

关 键 词：自动变速器 电液换挡执行机构 比例电磁阀 动态特性 

分 类 号：TH137.5[机械工程—机械制造及自动化]