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Sensors 2012, 12(11), 15778-15800; doi:10.3390/s121115778

Vehicle Dynamic Prediction Systems with On-Line Identification of Vehicle Parameters and Road Conditions

Department of Mechanical Engineering, National Chiao Tung University, University Road 1001, Hsinchu, Taiwan
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Received: 31 August 2012 / Revised: 17 October 2012 / Accepted: 29 October 2012 / Published: 13 November 2012
(This article belongs to the Special Issue New Trends towards Automatic Vehicle Control and Perception Systems)
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Abstract

This paper presents a vehicle dynamics prediction system, which consists of a sensor fusion system and a vehicle parameter identification system. This sensor fusion system can obtain the six degree-of-freedom vehicle dynamics and two road angles withoutusing a vehicle model. The vehicle parameter identification system uses the vehicle dynamics from the sensor fusion system to identify ten vehicle parameters in real time, includingvehicle mass, moment of inertial, and road friction coefficients. With above two systems, the future vehicle dynamics is predicted by using a vehicle dynamics model, obtained from the parameter identification system, to propagate with time the current vehicle state values, obtained from the sensor fusion system. Comparing with most existing literatures in this field, the proposed approach improves the prediction accuracy both by incorporating more vehicle dynamics to the prediction system and by on-line identification to minimize the vehicle modeling errors. Simulation results show that the proposed method successfully predicts the vehicle dynamics in a left-hand turn event and a rollover event. The prediction inaccuracy is 0.51% in a left-hand turn event and 27.3% in a rollover event. View Full-Text
Keywords: dynamics predictions; sensor fusion system; vehicle parameter identifications; road condition identifications dynamics predictions; sensor fusion system; vehicle parameter identifications; road condition identifications
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Hsu, L.-Y.; Chen, T.-L. Vehicle Dynamic Prediction Systems with On-Line Identification of Vehicle Parameters and Road Conditions. Sensors 2012, 12, 15778-15800.

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