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US 12,716,986 B2Granted
Method for detecting a change in location of at least one wheel of a motor vehicle
AssigneeContinental Automotive Technologies GmbH
InventorsNicolas Guinart, Jean-Philippe Boisset, Sylvain Godet
Life of this patent
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Abstract
A method for detecting a change in location of at least one wheel of a motor vehicle, the vehicle having at least one central processing unit, one wheel unit which includes an electronic assembly of sensors and which is mounted on the wheel, and one bidirectional communications assembly. The method notably includes a first comparison step, during which a first evaluation pattern is compared with a first reference pattern to determine whether the location of the wheel has changed, the patterns being representative of the effective location of the wheel unit in the motor vehicle.
Claims18
A method for detecting a change in location of at least one wheel of a motor vehicle, said vehicle having at least:
- one central processing unit,
- one wheel unit which comprises an electronic assembly of sensors and which is mounted on said wheel of the motor vehicle, and
- one means for measuring an angular position of said wheel, and
- one bidirectional radiofrequency communications assembly designed to ensure communication between the wheel unit and the central processing unit,
- wherein the method comprises at least:
- a first preliminary configuration step, during which the wheel unit emits a series of messages to the central processing unit via the communications assembly, the series of messages being emitted when the vehicle is running, conforming to synchronization with the angular position of the associated wheel, and the central processing unit establishes and records a first reference pattern representative of the location of the wheel unit in the motor vehicle, by measuring the power of said received messages,
- a first transmission step, during which the wheel unit reproduces the emission of the series of messages emitted during the first preliminary configuration step,
- a first evaluation step, performed by the central processing unit, during which a first evaluation pattern is established by the central processing unit by measuring the power of the series of messages received during the first transmission step, and
- a first comparison step, performed by the central processing unit, during which the first evaluation pattern is compared with the first reference pattern to determine whether the location of the wheel has changed,
- wherein further comprising at least:
- a second preliminary configuration step, during which the central unit emits a series of messages to the wheel unit via the communications assembly, the series of messages being emitted when the vehicle is running, conforming to synchronization with the angular position of the associated wheel, and the wheel unit establishes and records a second reference pattern representative of its location in the motor vehicle, by measuring the power of said received messages,
- a second transmission step, during which the central unit reproduces the emission of the series of messages emitted during the second preliminary configuration step,
- a second evaluation step, during which a second evaluation pattern is established by the wheel unit by measuring the power of the series of messages emitted during the second transmission step,
- a second comparison step, during which the second evaluation pattern is compared with the second reference pattern by the wheel unit to determine whether the location of the wheel has changed.
11 more elements
A detection method for detecting a change in location of at least one wheel of a motor vehicle, said vehicle having at least:
- a plurality of central processing units disposed in the vehicle;
- a wheel unit mounted on a respective one of said at least one wheel of the motor vehicle, each wheel unit comprising an electronic assembly of sensors,
- a means for measuring an angular position of a respective one of said at least one wheel, and
- one bidirectional radiofrequency communications assembly adapted to communicate between the wheel unit and the plurality of central processing units,
- the method comprising at least:
- a first preliminary configuration step, during which the wheel unit emits a series of messages to the central unit via the communications assembly, the series of messages being emitted when the vehicle is running, conforming to synchronization with the angular position of the associated wheel, and the central unit establishes and records a first reference pattern representative of the location of the wheel unit in the motor vehicle, by measuring the power of said received messages,
- a first transmission step, during which the wheel unit reproduces the emission of the series of messages emitted during the first preliminary configuration step,
- a first evaluation step, performed by the central unit, during which a first evaluation pattern is established by the central unit by measuring the power of the series of messages received during the first transmission step, and
- a first comparison step, performed by the central unit, during which the first evaluation pattern is compared with the first reference pattern to determine whether the location of the wheel has changed,
- wherein each of the plurality processing units of the motor vehicle communicates with the at least one wheel unit via the bidirectional communications assembly to consolidate said reference patterns and said evaluation patterns.
7 more elements
Dependencies are inferred from the claim text.