虚拟环境交流底盘测功机试验系统设计  

Design of Alternating Current Chassis Dynamometer System in Virtual Environment

作　　者：张晓瑞 周志立 ZHANG Xiaorui;ZHOU Zhili(School of Mechanical&Precision Instrument Engineering,Xi’an University of Technology,Xi’an 710048,China;Vehicle&Traffic Engineering School,Henan University of Science&Technology,Luoyang 471003,China)

机构地区：[1]西安理工大学机械与精密仪器工程学院,陕西西安710048 [2]河南科技大学车辆与交通工程学院,河南洛阳471003

出　　处：《河南科技大学学报（自然科学版）》2022年第2期27-33,M0004,共8页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家重点研发计划基金项目(2016YFD070100)。

摘　　要：为使车辆在底盘测功机试验中具有实车道路试验的效果,需要为其室内试验系统创建更为接近实车道路试验的环境,利用虚拟现实技术创建虚拟环境为有效方法之一。本文根据车辆底盘测功机试验的功能,通过分析虚拟环境下试验系统的技术需求,构建了虚拟环境交流底盘测功机试验系统,分别设计了其虚拟环境子系统、测功机和电气子系统,以及测控子系统。通过对虚拟现实、动态加载控制和试验系统平台技术等关键技术的分析和应用,开发了Prescan软件的虚拟环境、Links-RT支撑的动态加载控制和DDS平台上计算机网络实时通信的底盘测功机试验系统。对比试验结果表明:室内底盘测功机试验与室外道路试验的受控速度误差在1 km/h的试验精度要求范围内,试验结果变化趋势一致,数据吻合。In order to make the vehicle have the effect of the real road test in the chassis dynamometer test,it is necessary to create an environment closer to the real road test for its indoor test system,and the use of virtual reality technology to create a virtual environment is one of the effective methods. According to the function of the vehicle chassis dynamometer test,a virtual environment AC chassis dynamometer test system was constructed by analyzing the technical requirements of the test system in virtual environment,and its virtual environment subsystem,dynamometer and electrical subsystem,measurement and control subsystem were designed respectively. Through the analysis and application of key technologies such as virtual reality,dynamic loading control and test system platform technology,the chassis dynamometer test system with virtual environment under Prescan software environment, dynamic loading control supported by Links-RT, and computer network real-time communication on the data distribution service( DDS) platform was realized.Through comparative tests,the results show that the controlled speed error of indoor chassis dynamometer test and outdoor road test is within the test accuracy requirement of 1 km/h,and the test data and the change trend are consistent.

关 键 词：车辆 底盘测功机 虚拟环境 测控技术 试验系统 

分 类 号：TM933.3[电气工程—电力电子与电力传动] U270.7[机械工程—车辆工程]