From：Internet Info Agency 2026-01-12 14:09:00
BMW has recently filed a new patent proposing the integration of an alcohol detector into its smart car key. The design would allow the system to measure the driver's blood alcohol concentration before starting the vehicle, and if the level exceeds the legal limit, the system would automatically prevent the car from starting—thereby preventing drunk driving at the source. This move reflects BMW's strategy of using hardware-based technology to intervene proactively and reduce the risk of dangerous driving. Details of the patent have been reported by international media, with images showing that the smart key resembles existing models but incorporates an advanced sensing module internally.
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