Tyres represent the most important subsystem for the lateral, longitudinal and vertical vehicle control. All relevant forces and torques beside aerodynamics and wind are transferred by the tyres from the road to the car. The characteristics of the transfer behaviour is strongly dependent on the local properties of the tyre-road contact. Consequently, extensive research activities have been focussed on the understanding and measurement of the force transfer processes in the tyre contact patch (TCP) in the previous years. This article gives an overview of potential applications using the information from a mechatronic tyre in general. Exemplarily the design and the related strategy to derive global tyre forces are given in case of an optical tyre sensor. Most results presented in this paper are part of the project apollo. Apollo is a research project funded by the European Commission under the 5th framework programme 'Information Society Technologies' (IST). The objective is to develop a prototype of an intelligent tyre. The overall goals are to increase traffic safety and enable improvements for Vehicle Dynamics Control, Advanced Driver Assistance Systems (ADAS) and Services for external users by providing data on the tyre and the local tyre-road contact. The tyre becomes important as connecting and force transferring element between vehicle and road and influences the driving dynamics status significantly. The basic tyre deformation behaviour in operation shows possibilities to determine the current operating status. A high demanding task is the design of evaluation algorithms. These require detailed sensor information and tyre properties. The design and development of an optical deformation sensor to measure tyre deformation is described and the potential to evaluate wheel load, longitudinal and lateral force is shown. A wireless communication and power supply system is used to transmit the sensor data out of the tyre.


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    Title :

    The mechatronic tyre for online determination of tyre contact patch forces


    Additional title:

    Der mechatronische Reifen zur Online-Bestimmung der Kräfte im Radaufstandspunkt


    Contributors:


    Publication date :

    2006


    Size :

    11 Seiten, 6 Bilder, 5 Quellen


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




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