多GPS架构下汽车测试数据处理方法  

Measured Data Processing Scheme in Vehicle Test with Multi-GPS Layout

作　　者：夏泽斌[1,2] 徐延海[3] 吴龙[1,2] 

机构地区：[1]三明学院机电工程学院,三明365004 [2]三明机械CAU工程研究中心,三明365004 [3]西华大学交通与汽车工程学院,成都610039

出　　处：《汽车工程》2017年第8期951-954,共4页Automotive Engineering

基　　金：福建省教育厅科技项目(JK2014047);福建省教育厅科技项目(JAT160463);三明学院科技项目(B201612)资助

摘　　要：为提高应用GPS技术的汽车测试中的效率和可靠性,本文中研究了一种采用多个GPS的汽车动态参数测量方法。为消除GPS定位误差,提出了一种测试数据修正方法,有效地保证了多GPS之间的相对位置和汽车运行轨迹的精确性。同时利用惯性测量单元同步测量汽车运行中的横摆角速度,并与GPS数据计算得到的横摆角速度进行对比。结果表明,两者很好地吻合,说明所提出的动态数据处理方法计算得到的汽车行驶轨迹和有关动态参数的精度满足汽车性能道路试验要求。To enhance the efficiency and reliability of vehicle test and measurement applying GPS technology,a vehicle dynamic parameter measurement method using multi-GPS is studied.For eliminating the positioning error of GPS,a measured data correction scheme is proposed,effectively ensuring the accuracy of relative position between multi-GPS and vehicle driving trajectory.Meanwhile,inertial measurement unit is utilized to synchronously measure vehicle yaw rate during driving,which is then compared with that calculated by GPS data.The results show that both results agree well with each other,demonstrating the high accuracy of vehicle driving trajectory and related dynamic parameters obtained by the data processing scheme proposed,meeting the requirements of road test on vehicle performance.

关 键 词：汽车测试 多GPS 数据处理方法 横摆角速度 

分 类 号：U467[机械工程—车辆工程]