Analysis of vehicle and driving condition influences on road classification from vehicle signals
conference paper
Suspension settings generally are a compromise for performance on different road roughness and stability requirements. With a priori information of the road roughness a superior performance can be achieved, and this information can be obtained from vehicle based road classification methods that use axle acceleration signals. This paper discusses investigations into effects of vehicle parameters on axle acceleration signals using simulations with a quarter car model on several measured road profiles and presents influences of driving speed. Experimental results from a vehicle with adjustable dampers confirm that the effects of tyre dynamics are larger on rough roads, and due to tyre dynamics the speed relation for axle accelerations depends on road roughness. Additionally the suspension damping and tyre inflation pressure need to be considered.
TNO Identifier
518646
Publisher
Society of Automotive Engineers of Japan
Article nr.
20149322
Source title
12th International Symposium on Advanced Vehicle Control September 22-26, 2014
Collation
6 p.
Pages
732-737
Files
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