Title :
A Battery-less Tire Pressure Monitoring System
Author :
Liji Wu ; Xiangmin Zhang ; Xiao Yu ; Xuyang Ding ; Chaojun Chi
Author_Institution :
Tsinghua Nat. Lab. for Inf. Sci. & Technol., Tsinghua Univ., Beijing, China
Abstract :
A battery-less Tire Pressure Monitoring System (TPMS) prototype based on inductive coupling is presented in this paper. A special power recovery circuit is designed and implemented in 0.35μm 14V HVCMOS takes place of battery as power supply. The power is delivered by a 2.25W@13.56MHz transmitter and transferred over 65cm to achieve DC voltage at 3V with intermittent current of 10mA as power supply for a widely used commercial TPMS System on Chip which is composed of pressure sensor, temperature sensor, A/D and MCU. The power receiver is put in tire so that the influence of wheel hub could be considered. The battery-less TPMS is verified to be feasible.
Keywords :
CMOS integrated circuits; analogue-digital conversion; computerised monitoring; condition monitoring; electromagnetic coupling; inductive power transmission; integrated circuit design; microcontrollers; power supplies to apparatus; pressure sensors; radio receivers; radio transmitters; receivers; system-on-chip; temperature sensors; tyres; wheels; A/D convertors; DC voltage; HVCMOS implementation; MCU; TPMS system on chip; battery-less TPMS; battery-less tire pressure monitoring system; current 10 mA; frequency 13.56 MHz; inductive coupling; power 2.25 W; power receiver; power recovery circuit design; power supply; power transmitter; pressure sensor; size 0.35 mum; temperature sensor; voltage 14 V; voltage 3 V; wheel hub; Battery-less Tire Pressure Monitoring System; Power Recovery Circuit; Wireless Power Transfer;
Conference_Titel :
Connected Vehicles and Expo (ICCVE), 2012 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-4705-1
DOI :
10.1109/ICCVE.2012.49
