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IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. 28, NO. 7, JULY 2009 941 The Tire as an Intelligent Sensor
 

Summary: IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. 28, NO. 7, JULY 2009 941
The Tire as an Intelligent Sensor
Sinem Coleri Ergen, Member, IEEE, Alberto Sangiovanni-Vincentelli, Fellow, IEEE, Xuening Sun, Member, IEEE,
Riccardo Tebano, Sayf Alalusi, Giorgio Audisio, and Marco Sabatini
Abstract--Active safety systems are based upon the accurate
and fast estimation of the value of important dynamical variables
such as forces, load transfer, actual tire­road friction (kinetic
friction) k, and maximum tire­road friction available (potential
friction) p. Measuring these parameters directly from tires offers
the potential for improving significantly the performance of active
safety systems. We present a distributed architecture for a data-
acquisition system that is based on a number of complex intelligent
sensors inside the tire that form a wireless sensor network with
coordination nodes placed on the body of the car. The design of
this system has been extremely challenging due to the very limited
available energy combined with strict application requirements
for data rate, delay, size, weight, and reliability in a highly dy-
namical environment. Moreover, it required expertise in multiple
engineering disciplines, including control-system design, signal
processing, integrated-circuit design, communications, real-time

  

Source: Austin, Mark - Institute for Systems Research & Department of Civil and Environmental Engineering, University of Maryland at College Park

 

Collections: Engineering