POWER SUPPLY USING STATIC MAGNETIC FIELD OF TIRE PRESSURE MONITORING SYSTEM

• US 20060176163A1
• Filed: 11/07/2005
• Published: 08/10/2006
• Est. Priority Date: 01/24/2005
• Status: Active Grant

• Current Assignee: Hyundai Autonet Co Ltd (Hyundai Mobis Co., Ltd.)
• Original Assignee: Hyundai Autonet Co Ltd (Hyundai Mobis Co., Ltd.)
• Inventors: KIM, SANG KOOK, LEE, WON JO, NA, HEU KYONG, KWON, DAE HYUK, CHOI, SANG HOON, CHUN, DONG PIL
• Granted Patent: US 7,541,916 B2
• Time in Patent Office: Days
• US Class Current: 340/444
• CPC Class Codes: B60C 23/0408 transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver

Abstract

A power supply using a static magnetic field of a tire pressure monitoring system is provided. The power supply includes: a static magnetic field generator installed at a car position adjacent to a tire, and generating the static magnetic field; and an EMF (ElectroMotive Force) coil installed at the tire, and generating an induced electromotive force by the generated static magnetic field and a relative motion resulting from rotation of the tire, and providing the generated electromotive force to the transmitter and the sensor.

Claims

1. A RFID (Radio Frequency Identification) tag power supply using a static magnetic field of a RFID TPMS (tire pressure monitoring system), which has a sensor for periodically measuring a tire pressure and generating tire pressure data and a transmitter for storing the measured tire pressure data and loading and transmitting the tire pressure data on a radio frequency, the power supply comprising:

a static magnetic field generator installed at a car position adjacent to a tire, and generating the static magnetic field; and

an EMF (ElectroMotive Force) coil installed at the tire, and generating an induced electromotive force by the generated static magnetic field and a relative motion resulting from rotation of the tire, and providing the generated electromotive force to the transmitter and the sensor.