The iPhone could work as a breathalyzer to block the vehicle

Apple could integrate a breathalyzer function on your future devicesaccording to a patent filed by the company in February 2021 and recently published by the United States Patent and Trademark Office (via obviouslyapple). More specifically, the function would limit the use of Apple CarKeythe company’s service to embed the keys in the car, in the event that the iPhone or Apple Watch user tests positive for alcohol.

The patent does not specify whether the iPhone or Apple Watch itself will be able to measure blood alcohol levels or whether a third-party accessory will be required. However, Apple assures that the iPhone could obtain “information related to the characteristics of human breathing”. For example, “Typical ammonia levels, alcohol levels acceptable for driving, etc.” In the event that this data is positive, iOS will temporarily restrict access to CarKey, making that the user cannot use his digital key to start the vehicle.

Apple CarKey for iPhone or Apple Watch would allow access again as long as the user meets a series of requirements. For example, the blood alcohol level is below a threshold value.

The iPhone or Apple Watch could also unlock the restriction through a series of mental challengeslike math problems. Passing these tests could mean that the user is fit to drive. If you are unable to resolve these issues, iOS will keep the CarKey lock.

The feature Apple is planning for the iPhone is similar to the immobilizer breathalyzer that new vehicles will have to carry

It must be taken into account, yes, that it is a patent, and not a feature under development. In fact, and at least for now, there are no details on whether the company is working on this feature for the iPhone. Nor if it will come in the future.

However, this feature for iPhone could be very useful. Especially, if we take into account the plans of the European Union related to road safety. Brussels, more precisely. It will require the inclusion of a breathalyzer system in vehicles approved from July this year. What this device will do is boot up if it detects that the driver is exceeding the maximum rate allowed. In Europe, remember, the maximum rate is 0.50 grams of alcohol per liter of blood and 0.30 for novice or professional drivers. Or, 0.25 milligrams per liter of air breathed (and 0.15 in the case of novice or professional drivers)

So it wouldn’t be surprising if the functionality that Apple is planning for its iPhone or Apple Watch syncs with the breathalyzer in CarKey-enabled vehicles.