A capacitive detection device that may include at least one electrode of a capacitive sensor, an alternating voltage source, a device for measuring a complex value of impedance or admittance between the detection electrode and an electrical circuit reference point and a calibration resistor, and a switching device arranged so as to connect the voltage source to the electrode, in the measurement mode, and to connect the voltage source to the calibration resistor and disconnect the voltage source from the electrode, in the calibration mode. The measuring device is arranged so as to measure a first complex value of the calibration resistor, during operation in the calibration mode; to measure a second complex value between the electrode and the electrical circuit reference point during operation in measurement mode, and to correct the second measured complex value according to the first measured complex value.
DISPOSITIF CAPACITIF DE DÉTECTION DE LA PRÉSENCE D'UNE PERSONNE À PROXIMITÉ OU AU CONTACT D'UN COMPOSANT D'UN VÉHICULE AUTOMOBILE
CAPACITIVE DEVICE FOR DETECTING THE PRESENCE OF A PERSON NEAR OR IN CONTACT WITH AN ELEMENT OF AN AUTOMOBILE
KAPAZITIVE VORRICHTUNG ZUR DETEKTION DER ANWESENHEIT EINER PERSON IN DER NÄHE ODER IM KONTAKT MIT EINEM AUTOMOBIL-ELEMENT
2024-05-15
Patent
Electronic Resource
French
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge / A61B DIAGNOSIS , Diagnostik / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / G01V Geophysik , GEOPHYSICS |
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