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1. (WO2017129629) CAPACITIVE SENSOR DEVICE WITH EMI-ROBUST CAPACITIVE MEASUREMENT CIRCUIT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/129629 International Application No.: PCT/EP2017/051567
Publication Date: 03.08.2017 International Filing Date: 25.01.2017
IPC:
B60R 21/015 (2006.01) ,A47C 7/74 (2006.01) ,B60N 2/56 (2006.01) ,H03K 17/955 (2006.01) ,B62D 1/06 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
R
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
21
Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
01
Electrical circuits for triggering safety arrangements in case of vehicle accidents or impending vehicle accidents
015
including means for detecting the presence or position of passengers, passenger seats or child seats, e.g. for disabling triggering
A HUMAN NECESSITIES
47
FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
C
CHAIRS; SOFAS; BEDS
7
Parts, details, or accessories of chairs or stools
62
Accessories for chairs
72
Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
74
for ventilation, heating or cooling
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
N
VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
2
Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
44
Details or parts not otherwise provided for
56
Heating or ventilating devices
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
K
PULSE TECHNIQUE
17
Electronic switching or gating, i.e. not by contact-making and -breaking
94
characterised by the way in which the control signals are generated
945
Proximity switches
955
using a capacitive detector
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
1
Steering controls, i.e. means for initiating a change of direction of the vehicle
02
vehicle-mounted
04
Hand wheels
06
Rims, e.g. with heating means; Rim covers
Applicants:
IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. [LU/LU]; Zone Industrielle 12, rue Pierre Richardot 6468 Echternach, LU
Inventors:
LAMESCH, Laurent; LU
Agent:
BEISSEL, Jean; LU
KIHN, Pierre; LU
OCVIRK, Philippe; LU
LAMBERT, Romain; LU
KIHN, Henri; LU
Priority Data:
92 96126.01.2016LU
Title (EN) CAPACITIVE SENSOR DEVICE WITH EMI-ROBUST CAPACITIVE MEASUREMENT CIRCUIT
(FR) DISPOSITIF DE CAPTEUR CAPACITIF AYANT UN CIRCUIT DE MESURE CAPACITIF ROBUSTE AUX INTERFÉRENCES ÉLECTROMAGNÉTIQUES (EMI)
Abstract:
(EN) A capacitive sensor device (31) connected between an electric heating member (52) and a heating current supply (46) and for using the electric heating member (52) as an antenna electrode, comprises a common mode choke (43). A control and evaluation circuit (32) includes • a third common mode choke winding (33), • a periodic signal voltage source (36) connected to a first terminal connection (34) of a third common mode choke winding (33), • a circuit (37) configured to determine an electrical quantity across a measurement node (40), a signal input port (38) being connected to a second terminal connection (35) of the third common mode choke winding (33), and a reference input port (39) is electrically connected to AC ground potential, and • an EMI filter network (41) that is electrically connected across the signal input port (38) and the reference input port (39).
(FR) La présente invention concerne un dispositif de capteur capacitif (31) connecté entre un élément chauffant électrique (52) et une alimentation en courant de chauffage (46) et destiné à utiliser l'élément chauffant électrique (52) comme électrode d'antenne, ledit dispositif de capteur capacitif comprenant une bobine d'arrêt en mode commun (43). Un circuit de commande et d'évaluation (32) comprend : un troisième enroulement de bobine d'arrêt en mode commun (33); une source de tension de signal périodique (36) raccordée à un premier raccordement de borne (34) d'un troisième enroulement de bobine d'arrêt en mode commun (33); un circuit (37) configuré de sorte à déterminer une quantité électrique à un nœud de mesure (40), un port d'entrée de signal (38) étant raccordé à un second raccordement de borne (35) du troisième enroulement de bobine d'arrêt en mode commun (33) et un port d'entrée de référence (39) étant raccordé électriquement au potentiel de masse en courant alternatif (CA); et un réseau de filtres EMI (41) qui est raccordé électriquement au port d'entrée de signal (38) et au port d'entrée de référence (39).
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
US20180370473DE112017000507