TY - GEN
T1 - The research of road profile estimation based on acceleration measurement
AU - Qin, Yechen
AU - Guan, Jifu
AU - Gu, Liang
PY - 2012
Y1 - 2012
N2 - To get the certain response of vehicle during the driving process, it's necessary to measure the road irregularities. Existing method of gauging the roughness is based on physical measurements and the instrument is installed under the vehicle, which is expensive and will affect the vehicle dynamic responses. This paper shows an easier method to estimate the road roughness by measuring and calculating the power spectral density (PSD) of unsprung mass accelerations. This approach is possible due to the relationship between these two via a transfer function. By comparing the power spectral densities of estimated road and the standard classes, we can classify the current road classes easily. Besides, this paper also shows that it's feasible to estimate the road profile by calculating the PSD of unsprung mass accelerations directly.
AB - To get the certain response of vehicle during the driving process, it's necessary to measure the road irregularities. Existing method of gauging the roughness is based on physical measurements and the instrument is installed under the vehicle, which is expensive and will affect the vehicle dynamic responses. This paper shows an easier method to estimate the road roughness by measuring and calculating the power spectral density (PSD) of unsprung mass accelerations. This approach is possible due to the relationship between these two via a transfer function. By comparing the power spectral densities of estimated road and the standard classes, we can classify the current road classes easily. Besides, this paper also shows that it's feasible to estimate the road profile by calculating the PSD of unsprung mass accelerations directly.
KW - Power spectral density
KW - Road estimation
KW - Roughness
KW - Vehicle dynamics
UR - http://www.scopus.com/inward/record.url?scp=84871319220&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.226-228.1614
DO - 10.4028/www.scientific.net/AMM.226-228.1614
M3 - Conference contribution
AN - SCOPUS:84871319220
SN - 9783037855072
T3 - Applied Mechanics and Materials
SP - 1614
EP - 1617
BT - Vibration, Structural Engineering and Measurement II
T2 - 2012 International Conference on Vibration, Structural Engineering and Measurement, ICVSEM 2012
Y2 - 19 October 2012 through 21 October 2012
ER -