US 11,865,874 B2
Method for detecting a change in location of at least one wheel of a motor vehicle
Nicolas Guinart, Toulouse (FR); Jean-Phillippe Boisset, Toulouse (FR); and Sylvain Godet, Toulouse (FR)
Assigned to Continental Automotive Technologies GmbH
Appl. No. 18/024,551
Filed by Continental Automotive Technologies GmbH, Hannover (DE)
PCT Filed Aug. 25, 2021, PCT No. PCT/EP2021/073505
§ 371(c)(1), (2) Date Mar. 3, 2023,
PCT Pub. No. WO2022/048968, PCT Pub. Date Mar. 10, 2022.
Claims priority of application No. 2008995 (FR), filed on Sep. 4, 2020.
Prior Publication US 2023/0286336 A1, Sep. 14, 2023
Int. Cl. B60C 23/04 (2006.01)
CPC B60C 23/0416 (2013.01) [B60C 23/045 (2013.01); B60C 23/0437 (2013.01); B60C 23/0438 (2013.01)] 10 Claims
OG exemplary drawing
 
1. 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 bidirectional radiofrequency communications assembly designed to ensure communication between the wheel unit and the central unit,
the method comprises at least:
a first 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 runs, according to the predetermined instantaneous angular positions of the associated wheel, and the wheel unit establishes and records a first reference pattern representative of its location in the motor vehicle, by measuring the power of said received messages,
a first transmission step, during which the central processing unit re-emits the series of messages emitted during the first preliminary configuration step,
a first evaluation step, performed by the wheel unit, during which a first evaluation pattern is established by measuring the power of the series of messages received during the first transmission step, and
a first comparison step, during which the first evaluation pattern is compared with the first reference pattern to determine whether the location of the wheel has changed.