US 11,698,317 B2
Device for measuring tire pressure without a battery
Joel Zabulon, Moissy-Cramayel (FR); and Didier Levavasseur, Moissy-Cramayel (FR)
Assigned to SAFRAN LANDING SYSTEMS, Velizy Villacoublay (FR); and SAFRAN ELECTRONICS & DEFENSE, Boulogne-Billancourt (FR)
Appl. No. 17/282,529
Filed by SAFRAN LANDING SYSTEMS, Velizy Villacoublay (FR); and SAFRAN ELECTRONICS & DEFENSE, Boulogne-Billancourt (FR)
PCT Filed Oct. 2, 2019, PCT No. PCT/EP2019/076783
§ 371(c)(1), (2) Date Apr. 2, 2021,
PCT Pub. No. WO2020/070232, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 18 59256 (FR), filed on Oct. 5, 2018.
Prior Publication US 2021/0348978 A1, Nov. 11, 2021
Int. Cl. B60C 23/04 (2006.01); G01L 17/00 (2006.01); G01B 7/30 (2006.01); G01D 5/20 (2006.01); G01P 3/48 (2006.01); G01L 19/08 (2006.01)
CPC G01L 17/00 (2013.01) [B60C 23/0428 (2013.01); B60C 23/0432 (2013.01); B60C 23/0488 (2013.01); B60C 23/0489 (2013.01); G01B 7/30 (2013.01); G01D 5/20 (2013.01); G01L 19/086 (2013.01); G01P 3/48 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A measurement device for measuring the pressure of a tire (2) of a wheel (3) mounted on an axle (4) of a vehicle, the measurement device comprising a stationary portion (5) for securing to the axle and a movable portion (14) for being driven in rotation by the wheel, the stationary portion comprising a first printed circuit (7) having at least one first track (12) formed thereon defining a first winding, the movable portion comprising a second printed circuit (16) having at least one second track (20) formed thereon defining a second winding, the second printed circuit being arranged to be connected to a pressure sensor (15), the first winding and the second winding being coupled together electromagnetically to form a wireless communication channel (23), the measurement device being arranged in such a manner that the pressure sensor is electrically powered by the stationary portion via the wireless communication channel (23), and in such a manner that uplink data comprising pressure measurement data is transmitted to the stationary portion (5) by the movable portion (14) via the wireless communication channel (23).