3D printed graphene-based self-powered strain sensors for smart tires in autonomous vehicles

Title
3D printed graphene-based self-powered strain sensors for smart tires in autonomous vehicles
Authors
송현철Deepam MauryaSeyedmeysam KhaleghianRammohan SriramdasPrashant KumarRavi Anant KishoreMin Gyu KangVireshwar KumarSeul-Yi LeeYongke YanJung-Min ParkSaied TaheriShashank Priya
Issue Date
2020-10
Publisher
Nature Communications
Citation
VOL 11, NO 5392-10
Abstract
The transition of autonomous vehicles into fleets requires an advanced control system design that relies on continuous feedback from the tires. Smart tires enable continuous monitoring of dynamic parameters by combining strain sensing with traditional tire functions. Here, we provide breakthrough in this direction by demonstrating tire-integrated system that combines direct mask-less 3D printed strain gauges, flexible piezoelectric energy harvester for powering the sensors and secure wireless data transfer electronics, and machine learning for predictive data analysis. Ink of graphene based material was designed to directly print strain sensor for measuring tire-road interactions under varying driving speeds, normal load, and tire pressure. A secure wireless data transfer hardware powered by a piezoelectric patch is implemented to demonstrate self-powered sensing and wireless communication capability. Combined, this study significantly advances the design and fabrication of cost-effective smart tires by demonstrating practical self-powered wireless strain sensing capability.
URI
http://pubs.kist.re.kr/handle/201004/72149
ISSN
2041-1723
Appears in Collections:
KIST Publication > Article
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