Tesla’s Cameras Can Help Airbags Deploy Faster

Tesla just found another use for the cameras already built into every one of its cars, and this one is all about safety. The company released a video this week explaining how its cameras can now help airbags and seatbelts react faster when a crash cannot be avoided.

Here is the simple version. Normally, airbags rely on physical sensors that only detect a crash once it has already started happening. By the time those sensors confirm an impact, you have often already started moving forward in your seat. Tesla’s cameras change that timing. They can spot an impact coming, figure out roughly when it will happen, and judge how serious it will be, all before the physical sensors even register anything. That extra warning lets the seatbelts tighten and gets the airbags ready to inflate sooner, sometimes up to 70 milliseconds earlier than before.

Seventy milliseconds sounds small, and most of the time it would not matter at all. But in a serious crash, every fraction of a second counts. Airbags do not actually inflate instantly. There is a brief moment where the bag is still filling up, and if that timing does not line up just right with the impact, you do not get the full protection you are supposed to. A few extra milliseconds of warning gives the airbag a better shot at being fully ready exactly when it needs to be.

As Tesla explained it:

“Tesla Vision allows us to deploy airbags up to 70 milliseconds earlier if your Tesla detects an unavoidable collision. This can be the difference between serious injury and walking away from a crash.”

One thing worth being clear on. The cameras are not the ones deciding when the airbags actually go off. The original impact sensors still make that final call. What the cameras do is give the rest of the system a heads up so everything is already prepared by the time the sensors confirm the crash. It is less of a replacement and more of an early warning system working alongside what was already there.

This is not brand new either, even though the explainer video is what brought it back into the spotlight. The feature actually rolled out through a software update last September, and it is already on 2023 and newer Model 3 and Model Y vehicles, some 2022 models, and current Model S and X vehicles. Tesla has not said exactly which software versions include it today, so if you are curious whether your car has it, checking your most recent update notes is the best place to start.

What this really shows is how Tesla thinks about safety. The company built its entire system around cameras instead of radar or lidar, which has been debated for years. This update is a good example of Tesla getting more value out of that choice, using cameras that are already in every car to improve something as important as crash protection, without needing any new hardware at all.

Source: InsideEvs