Road Roughness Measurement and Analysis for Vehicle Bench Test

Road roughness, the most direct automotive input, is a kind of basic data. Its analysis and applications have important effects on vehicle performance. Several methods such as wavelet analysis, amplitude-domain analysis, frequency-domain analysis are used to analyze the road elevation series of a highway. Through some disposal of the original survey data, a series of representative data has been taken to reproduction test in a 4-poster road simulator. Both analyses and test results show that, the proposed methods can be used for the actual data process of road roughness and in the vehicle bench test.