基于dSPACE的液力机械式自动变速器电磁阀控制方法研究  

Study of Solenoid Valve Control Method for Hydraulic Automatic Mechanical Transmission based on dSPACE

作　　者：蔡文文 鞠妍 庞学文 

机构地区：[1]中国第一汽车股份有限公司技术中心

出　　处：《汽车技术》2015年第1期18-20,26,共4页Automobile Technology

摘　　要：为了研究液力机械式自动变速器换挡时电磁阀的控制特性,实现对离合器油压的控制,以某液力机械式自动变速器试验台架为基础,利用d SPACE快速原型平台,采用试验方法获得了电磁阀的电流压力特性,并利用电磁阀电流闭环控制实现了对离合器压力的控制。试验结果表明,该方法可以实现电磁阀实际电流对目标电流的快速准确跟随,有效控制离合器油压,为下一步液力机械式自动变速器换挡控制创造基础条件。In order to study the control characteristics of solenoid valve when the hydraulic automatic mechanical transmission in shift progress and control the oil pressure of the clutch effectively, we acquire the current-pressure characteristics of the solenoid valve with experimental method based on the test bench of this transmission and by using the rapid prototyping platform of dSPACE, and then the clutch pressure is controlled by using current closed-loop controller. Test results show that this method enables the actual current follow the target current of the solenoid valve rapidly and accurately to control the oil press of the clutch effectively, which creates the basic conditions for shift control of the hydraulic automatic mechanical transmission.

关 键 词：液力机械式自动变速器 电磁阀控制 DSPACE 快速原型 

分 类 号：U463.212[机械工程—车辆工程]