Sensors | |
Vehicle Unpaved Road Response Spectrum Acquisition Based on Accelerometer and GPS Data | |
Nan Cong1  Jianzhong Shang1  Yanxi Ren2  | |
[1] College of Mechanical Engineering and Automation, National University of Defense Technology, Changsha, Hunan 410073, China; E-Mails:;System Institute of Engineering Equipment, Beijing 100093, China; E-Mail: | |
关键词: road response spectrum; road simulation; GPS; durability test; sensor fusion; | |
DOI : 10.3390/s120809951 | |
来源: mdpi | |
【 摘 要 】
This paper describes a response acquisition system composed of some spindle accelerometers and a time synchronized on-board GPS receiver developed in order to collect the dynamic response of vehicle riding on an unpaved road. A method of time-space conversion for calculating the response spectrum is proposed to eliminate the adverse effect of time-varying speed, based on the transform from the equitime sampled spindle acceleration responses to equidistance sampling. By using two groups of independent distance histories acquired from GPS, a method called long-range error correction is proposed to improve the accuracy of the vehicle's distance information, which is critical for the time-space conversion. The accuracy and limitations of the system have been analyzed, and its validity has been verified by implementing the system on a wheel loader for road response spectrum measuring. This paper offers a practical approach to obtaining unpaved road response spectra for durability road simulation.
【 授权许可】
CC BY
© 2012 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190043147ZK.pdf | 410KB | download |