How does lane assist in cars work?

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How does lane assist in cars work?

In: Technology

Basically just cameras.

Camera’s are placed on both sides of the car looking at the road. Software looks for the road lines (conveniently they are nice easy colors like white and yellow) and triggers an alarm if the car starts crossing over them without the turn signal on (to account for merging lanes).

The more advanced systems will also nudge the wheel to straight the car out.

The car has a camera that points towards the front of the car (at the road). It scans for the markings on the road that show where the lane is, and then if it notices that the car is shifting to an angle where the markings don’t line up, it does its thing (makes a sound or pushes back on the steering wheel – different systems have different functions).

It won’t work well on roads that don’t have markings or where the markings are worn down, or in some types of weather.

A lot of newer cars come with forward facing cameras (Usually positioned above and behind the rear-view mirror). These cameras are linked up with a computer that can detect lane markings on the road. The computer is calibrated to know the width of your car, so it can compare your position in the lane by determining how far away the lane markings are.

Newer cars can even provide steering assist to keep the car within the lanes, similar to how Tesla’s Autopilot works. This is possible as many newer cars use electric power steering, rather than the older hydraulic power steering. (Note: Your steering wheel is still physically attached to the wheels, it’s not drive-by-wire)