Patent ID: 7487671
Filing Date: 2009-02-10
Classification: B60C

Abstract:
1. A tire position location system for use with a tire parameter monitoring system having at least one tire parameter sensor for monitoring a parameter of an associated tire rotatable mounted on a vehicle, said tire position location system comprising a sensor unit and a magnetic field generator, said sensor unit comprising: a magnetic sensing element for generating location signals from magnetic fields encountered by the magnetic sensing element as the associated tire rotates; a microcontroller coupled to the magnetic sensing element for receiving and processing the location signals and tire parameter signals from an associated tire parameter sensor; and a signal generator controlled by the microcontroller for transmitting the processed location signals and the tire parameter signals to a receiving location; said magnetic field generator comprising; a set of magnets for generating a magnetic field unique to the location on the vehicle of the sensor unit, said set of magnets being fixed to the vehicle in a non-rotatable manner and located in proximity to the sensor unit at a location at which the magnetic field generated thereby is encountered by the magnetic sensing element as the tire rotates to cause said location signals to be generated.