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Tesla patent application details metal-object detection on a wireless charging pad

Teslarati says the application was published October 1 after a March submission and describes a way to account for temperature changes.

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1 Source, 1h ago, first seen 1h ago

TLDR

Teslarati says a Tesla patent application for a wireless charging pad was published on October 1, 2026, after being submitted in March. The described system would use inductive coils to detect metal objects, then analyze shifts in resonant frequencies and output magnitudes to distinguish foreign objects from temperature-related changes.

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Combined views

3.9K

1 Source, first seen 1h ago

42 likes6 comments4 saves9 reposts

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@Teslarati🚨 Tesla has a new patent application published today, which was submitted back in March, for a Wireless Charging Pad: “The present disclosure relates to methods and systems that can reliably detect foreign objects on a wireless charging pad under varying temperatures. In some examples, an object detector can utilize a set of inductive coils included in resonant tanks, and excite the resonant tanks using signals in a range of frequencies including or near a nominal resonant frequency of the resonant tanks. The object detector can detect a metal object based on resistance of a coil increasing and inductance of the coil decreasing. By analyzing the shifts and/or distributions in resonant frequencies and output magnitudes (e.g., output voltage peaks), the object detector can distinguish between changes of frequencies and magnitudes caused by temperature and those caused by foreign objects to accurately detect the foreign objects.”
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    1 Source

    @Teslarati🚨 Tesla has a new patent application published today, which was submitted back in March, for a Wireless Charging Pad: “The present disclosure relates to methods and systems that can reliably detect foreign objects on a wireless charging pad under varying temperatures. In some examples, an object detector can utilize a set of inductive coils included in resonant tanks, and excite the resonant tanks using signals in a range of frequencies including or near a nominal resonant frequency of the resonant tanks. The object detector can detect a metal object based on resistance of a coil increasing and inductance of the coil decreasing. By analyzing the shifts and/or distributions in resonant frequencies and output magnitudes (e.g., output voltage peaks), the object detector can distinguish between changes of frequencies and magnitudes caused by temperature and those caused by foreign objects to accurately detect the foreign objects.”
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