Erkennung von Fremdobjekten mit Drahtloser Aufladung
Anmelder: Aptiv Technologies AG 🇨🇭
Details
- Veröffentlichungs-Nr.
- EP4726967
- Anmeldetag
- 5. September 2025
- Veröffentlichung
- 15. April 2026
- Rechtsraum
- EP
Abstract
A method (300) of foreign object detection for a wireless power transmitter (100, 600). The method (300) includes determining a vector impedance of a near-field communication (NFC) coil (102, 602) with an NFC chip (108, 608). The determined vector impedance includes an impedance amplitude component and an impedance phase component. The impedance amplitude component and the impedance phase component are compared to a baseline impedance amplitude and a baseline impedance phase. A determination as to whether an object is present within an inductive charging area of the wireless power transmitter (100, 600) is made when a difference between the determined vector impedance, and the baseline impedance amplitude and the baseline impedance phase, exceeds a delta threshold. A ping signal is generated with a charging source coil (104, 604) when the object is determined to be present. A foreign object is detected based on whether a response signal to the ping signal is received from the object.
Anmelder
- Firma
- Aptiv Technologies AG
- Land
- 🇨🇭 Schweiz
Technologieunternehmen der Automobilzulieferindustrie mit Sitz in der Schweiz, das elektrische Architekturen, Sensorik, Software und vernetzte Systeme für Fahrzeuge entwickelt.
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