Conference proceeding
Estimation of Road Surface Conditions From Tire Vibration
Volume 11: New Developments in Simulation Methods and Software for Engineering Applications; Safety Engineering, Risk Analysis and Reliability Methods; Transportation Systems, Vol.11, pp.741-746
ASME 2010 International Mechanical Engineering Congress and Exposition, Vancouver, British Columbia, Canada, Nov. 12 - 18, 2010
01/01/2010
DOI: 10.1115/IMECE2010-38491
Abstract
This paper proposes the estimation algorithm of road conditions from tire vibration. The basic concept of estimation is that the tire vibration is determined by road irregularity and road friction condition. Because of difficulty of direct measurement of tire vibration, it is estimated from body acceleration using known tire model and vehicle properties between tire and body. To estimate the road irregularity, the Independent Component Analysis (ICA) method is used. The elastic deformation of the tire belt is modeled using the finite element absolute nodal coordinate formulation which allows for modeling large rotational motion and the nonlinear inertia effects. With comparison between estimated tire vibration from road irregularity with ICA and tire model and actual tire vibration from road irregularity and road surface condition with known vehicle properties, road surface condition could be estimated. So, tire vibration power spectral density (PSD) calculated by using the transmission characteristics becomes the function of the road surface, the road ruggedness, and the tire characteristic. These are clarified by the PSD ratio, ICA and the tire model, and road surface condition become able to estimate.
Details
- Title: Subtitle
- Estimation of Road Surface Conditions From Tire Vibration
- Creators
- Yoshihiro Suda - The University of TokyoKimihiko Nakano - The University of TokyoHiroyuki Sugiyama - Tokyo University of ScienceRyuzo Hayashi - Tokyo University of Agriculture and TechnologyShigeyuki Yamabe - The University of Tokyo
- Resource Type
- Conference proceeding
- Publication Details
- Volume 11: New Developments in Simulation Methods and Software for Engineering Applications; Safety Engineering, Risk Analysis and Reliability Methods; Transportation Systems, Vol.11, pp.741-746
- Conference
- ASME 2010 International Mechanical Engineering Congress and Exposition, Vancouver, British Columbia, Canada, Nov. 12 - 18, 2010
- DOI
- 10.1115/IMECE2010-38491
- Publisher
- ASMEDC
- Language
- English
- Date published
- 01/01/2010
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984196638402771
Metrics
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