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Sensors 2012, 12(8), 9951-9964; doi:10.3390/s120809951
Article

Vehicle Unpaved Road Response Spectrum Acquisition Based on Accelerometer and GPS Data

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Received: 10 April 2012; in revised form: 6 July 2012 / Accepted: 16 July 2012 / Published: 25 July 2012
(This article belongs to the Section Physical Sensors)
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Abstract: 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.
Keywords: road response spectrum; road simulation; GPS; durability test; sensor fusion road response spectrum; road simulation; GPS; durability test; sensor fusion
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Cong, N.; Shang, J.; Ren, Y.; Guo, Y. Vehicle Unpaved Road Response Spectrum Acquisition Based on Accelerometer and GPS Data. Sensors 2012, 12, 9951-9964.

AMA Style

Cong N, Shang J, Ren Y, Guo Y. Vehicle Unpaved Road Response Spectrum Acquisition Based on Accelerometer and GPS Data. Sensors. 2012; 12(8):9951-9964.

Chicago/Turabian Style

Cong, Nan; Shang, Jianzhong; Ren, Yanxi; Guo, Yao. 2012. "Vehicle Unpaved Road Response Spectrum Acquisition Based on Accelerometer and GPS Data." Sensors 12, no. 8: 9951-9964.



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