用于电气变速器双轴速差的直接测量方法(英文)  

Direct Measuring Method for Dual Shafts’ Speed Difference of Electrical Variable Transmission

作　　者：崔淑梅[1] 黄文祥[1] 匡志[1] 程远[1] 宋立伟[1] 

机构地区：[1]哈尔滨工业大学电气工程系

出　　处：《汽车安全与节能学报》2011年第4期345-350,共6页Journal of Automotive Safety and Energy

基　　金：国家自然科学基金项目(50577010)

摘　　要：一种用于混合动力电动汽车(HEV)传动系中的具有新型双转子结构的电气变速器(EVT)被提出,为实现对其内电机的矢量控制,必须实时检测该双转子电机两转轴的速度差。本文给出一种基于凸极式外转子结构的变磁阻式(VR)旋转变压器配合环形变压器的测量直接方法,并研制了基于AD2S1200的轴角变换电路(RDC),用于系统控制。该方法避免了用两个传感器分别测量双轴转速后再求差带来的时滞与误差积累等缺陷,理论分析、仿真与实验结果证明该方法可以用于EVT调速系统。An electric machine type with a dual-rotor structure called electrical variable transmission （EVT） was proposed in hybrid electric vehicle （HEV） transmission application, whose speed difference of dual shafts is detected in real time for its inner motor vector control. A detection method was developed based on salient outer rotor variable reluctance （VR） resolver work with ring transformer, with the resolver-to-digital converter （RDC） board based on AD2S1200 being built for the control system. The method can avoid defects such as signal delay and error accumulation caused by traditional methods, which use two sensors to detect the dual shafts＇ speeds and solve the difference thereafter. The results show that the method can be used in EVT＇s speed control systems.

关 键 词：混合动力电动汽车(HEV) 电气变速器(EVT) 速度差 变磁阻式(VR)旋转变压器 环形变压器 

分 类 号：TM383.2[电气工程—电机]