The Research of Road Profile Estimation Based on Acceleration Measurement
To get the certain response of vehicle during the driving process, its 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 its feasible to estimate the road profile by calculating the PSD of unsprung mass accelerations directly.
Roughness Road estimation Power spectral density Vehicle dynamics
Yechen Qin Jifu Guan Liang Gu
Noise and Vibration Control Laboratory,School of Mechanical Engineering,Beijing Institute of Technology,Beijing,PR China
国际会议
上海
英文
1614-1617
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）