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US 7,336,161 B2Granted
Tire pressure monitoring system
AssigneeJohnson Controls Automotive Electronics
InventorDavid Walraet
Life of this patent
Estimating the term…
Abstract
A tire pressure monitoring system for the wheels of a motor vehicle determines the position of each wheel.
Claims32
Tire pressure monitoring system for wheels of a motor vehicle, comprising:
- a control unit,
- a pressure sensor mounted on each wheel associated to a transmitter by which it transmits a pressure signal to the control unit containing, at least, the pressure sensor's identification data, and
- means for determining a distance traveled by each wheel,
- transmission control means adapted to control transmission of transmitters when their associated wheel reaches a predetermined orientation,
- means for timing the transmissions,
- a module for calculating the distance traveled by each wheel between two transmissions, and
- a positioning module for comparing the distances determined by said means for determining the distance traveled by each wheel and the distances determined by said calculation module.
4 more elements
A method for associating a particular pressure sensor with a particular wheel, comprising:
- transmitting a signal from a transmitter coupled to a wheel, the signal including information capable of being used to identify the wheel, the first information being transmitted from one of a plurality of unknown wheel locations;
- using the signal from the transmitter to determine first information relating to the wheel;
- determining second information relating to the wheel, the second information being received from a known wheel location;
- and
- comparing the first information and the second information to associate a pressure sensor with a wheel location;
- wherein the transmitter coupled to the wheel does not need to continuously transmit a signal in order to determine the first information.
3 more elements
A method for associating a particular pressure sensor with a particular wheel, comprising:
- transmitting a signal from a transmitter coupled to a wheel based on an orientation of the wheel, the signal including information capable of being used to identify the wheel, the first information being transmitted from one of a plurality of unknown wheel locations;
- using the signal from the transmitter to determine first information relating to the wheel;
- determining second information relating to the wheel, the second information being received from a known wheel location;
- and
- comparing the first information and the second information to associate a pressure sensor with a wheel location.
2 more elements
Dependencies are inferred from the claim text.