Tire sensor system and method
AssigneeSemtech Corporation
InventorChaouki Rouaissia
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Abstract
Tire sensor system mountable in a wheel of a vehicle for determining a desired characteristic of the wheel or of a tire thereof or of a road, comprising: an autonomous source of electric energy, a conductor, a wireless data interface transmitting to the vehicle a signal that provides the desired characteristics, characterized by an electronic circuit configured to acquire, filter and digitize a capacitance of the conductor and to determine the signal transmitted to the vehicle based on the digitized capacitance.
Claims8
Tire Sensor System mountable in a wheel of a vehicle for determining a desired characteristic of the wheel or of a tire thereof or of a road, comprising:
- an autonomous source of electric energy
- a conductor,
- a wireless data interface transmitting to the vehicle a signal that provides the desired characteristics, characterized by
- an electronic circuit configured to acquire, filter and digitize a capacitance of the conductor and to determine the signal transmitted to the vehicle based on the digitized capacitance.
A method of determining a desired characteristic of a tire or of a wheel or of a road in a vehicle, comprising:
- providing in the wheel an autonomous energy source, a conductor, a wireless data interface transmitting to the vehicle a signal that provides the desired characteristics, characterized by
- acquiring, filtering and digitizing with an electronic circuit a capacitance of the conductor,
- determine the signal transmitted to the vehicle based on the digitized capacitance.
- The method of claim 7, comprising placing the conductor in the wheel such that its self-capacitance depends on a rotation angle of the wheel through variations of an instantaneous proximity between the conductor and a road and/or surfaces of the vehicle adjacent the wheel.
Dependencies are inferred from the claim text.