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1. WO2020109687 - PRINTED DEVICE FOR DETECTING THE MINIMUM LEVEL OF A FLUID IN A RESERVOIR

Publication Number WO/2020/109687
Publication Date 04.06.2020
International Application No. PCT/FR2019/052651
International Filing Date 07.11.2019
IPC
G01F 23/26 2006.01
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22by measurement of physical variables, other than linear dimensions, pressure, or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
26by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
G01F 23/00 2006.01
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
CPC
G01F 23/0069
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
0061characterised by the level signal processing means
0069particular electronic circuits for digital processing equipment
G01F 23/265
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22by measurement of physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
26by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
263using capacitors
265for discrete levels
G01F 23/268
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22by measurement of physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
26by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
263using capacitors
268mounting arrangements of probes
Applicants
  • PSA AUTOMOBILES SA [FR]/[FR]
Inventors
  • AUBRY, Vincent
  • GUIDEZ, Frederic
Agents
  • LEFEVRE, Jacky
Priority Data
187207729.11.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) PRINTED DEVICE FOR DETECTING THE MINIMUM LEVEL OF A FLUID IN A RESERVOIR
(FR) DISPOSITIF DE DETECTION DU NIVEAU MINIMAL D'UN FLUIDE IMPRIME DANS UN RESERVOIR
Abstract
(EN)
The present invention relates to a device for detecting a fill threshold of a fluid in a reservoir (1) of a motor vehicle, comprising an electronic module and a printed capacitive measurement sensor (2) arranged in the reservoir (1), the printed sensor (2) comprising at least two measurements zones corresponding to different fill levels of the reservoir (1), the at least two measurements zones comprising a first grid under the fill threshold and a second grid at the fill threshold, the printed capacitive sensor (2) being configured to measure a first frequency at the first grid and a second frequency at the second grid, the electronic module being configured to compare the first frequency and the second frequency and to determine whether the fill threshold has been reached.
(FR)
La présente invention a pour objet un dispositif de détection d'un seuil de remplissage d'un fluide dans un réservoir (1) d'un véhicule automobile, comprenant un module électronique et un capteur imprimé capacitif (2) de mesure disposé dans le réservoir (1), ledit capteur imprimé (2) comprenant au moins deux zones de mesure correspondant à des niveaux de remplissage différents du réservoir (1), lesdites au moins deux zones de mesure comportant un premier motif sous ledit seuil de remplissage et un deuxième motif au niveau dudit seuil de remplissage, ledit capteur imprimé capacitif (2) étant configuré pour mesurer une première fréquence audit premier motif et une deuxième fréquence audit deuxième motif, ledit module électronique étant configuré pour comparer ladite première fréquence et ladite deuxième fréquence et déterminer si le seuil de remplissage est atteint.
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