UPDATE: A similar Tesla filing from July 2020 suggests the US-based electric vehicle manufacturer is looking to employ radar technology inside its cabins to "reduce the risk of pediatric vehicular heatstroke, protect vehicle occupants from injury through advanced airbag deployment and seatbelt reminders, and enhance theft prevention systems."
While it's unclear if this new document references the hardware testing for that system, CarAdvice has been unable to confirm the application for the new technology.
This story will be further updated when more information becomes available.
While the document is light on details, millimetre wave sensors typically employ high frequency radio waves to detect objects and estimate range, velocity, and angle with a high degree accuracy.
The US-based electric-car specialist currently uses cameras and radar cruise control to operate its autonomous driving features, and it's expected any new technology would complement existing systems.
The paperwork suggests Tesla is looking for approval to use the radar technology on public roads in a wide range of markets, including Australia, the USA, Canada, Taiwan, Hong Kong, Vietnam, Japan, Singapore, South Korea, and Israel.
CarAdvice has approached Tesla for comment. This story will be updated with its response.
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