On-line estimation of road profile in semi-active suspension based on unsprung mass acceleration

As the main excitation source in the process of vehicle driving, road roughness directly affects the vehicle ride comfort and handling stability. In this paper, an on-line estimation method of road profile based on vehicle dynamic response is proposed, which estimates the road disturbance using the transmission characteristics of the system and realizes the road roughness classification by calculating the road information via Power Spectral...