Experimental ride comfort analysis of an electric light vehicle in urban scenario 2020-01-1086
Urban mobility represents one of the most relevant global challenges which the world has to face up in the next few years. Traffic congestion regulation, pollution level abatement and global warming reduction are concrete issues which will unavoidably influence many aspects of human life. Within this context, in continuous and fast evolution, several options regarding vehicle design and power sources technologies are developing: among them, electric and hybrid vehicles are quite successful to meet the increasing restrictive environmental targets. On the other hand, this significant goal may affect the perceived vehicle comfort and drivability, especially in everyday urban scenarios. In this framework, European project STEVE is aimed to demonstrate urban sustainable co-mobility obtained by light electric vehicles.
The purpose of this paper is to carry out a comparison in terms of comfort between two vehicles belonging to different segments, but both designed for urban mobility: a STEVE electric quadricycle and a conventional combustion engine passenger car. Experimental tests are carried out in order to acquire vertical accelerations on board driving ON different road surfaces at several vehicle speeds. The vertical vibrations experienced by the drivers through the seat are studied using a specific seat pad accelerometer. In addition, other areas on the cockpit, like the steering wheel, are analysed. The vehicles are compared in frequency domain in order to evaluate differences for comfort quality.
Angelo Domenico Vella, Alessandro Vigliani, Antonio Tota, Domenico Lisitano