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AN238

Title:
Tire Pressure Monitoring (TPM) System
Name:
AN238
Date:
01/13/2009
Author:
Ruan Lourens, Curtis Kell
Description:
This document explains a typical tire pressure monitoring(TPM) system specifically intended for automotive use. It serves as a reference to design a real-world system based on various Microchip products. A TPM system primarily monitors the internal temperature and pressure of an automobile?s tire. There is a variety of system approaches to follow, although this one is a rather comprehensive auto-location system. An autolocation system can dynamically detect the position of a specific sensor, which is useful when tires are rotated. The heart of the TPM system is the Sensor/Transmitter (S/TX) device and it is based on Microchip?s rfPIC12F675.
Keywords:
TPM System, Sensor/Transmitter Device, RF Receiver Module, Low Frequency (LF) Commander Device, Control Unit, Pressure Vessel (Tire)
 
Application Notes & Source Code
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  AN238
  01/09/2009
  309KB
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