Automakers and legislators in countries around the world have for 100 years made sure that the car causes less harm to drivers, pedestrians and other vehicles.

As a result, many technologies have appeared that are not surprising today: seat belts and airbags, ABS (anti-lock braking system) and ESP (electronic control system).

But manufacturers do not stand still and are constantly improving cars, adding new safety assistants.

How these systems work and why they don’t always work.

1. Hold in the lane

LDWS – Lane Departure System
LKA/LKS – lane assist

What is he doing: tries to keep the car in the lane and prevent it from leaving the lane.

The Lane Detection System warns drivers with an audible signal or rule measurement that they are covering the median.

Depending on the type of system, it intends to independently return the car to the lane (LKA/LKS) or warn only (LDWS). If the driver continues to turn the steering wheel, the system turns off.

To control the lane, a camera hidden in the rear-view mirror or a lidar on the front bumper is used.

The system works stably when the markings on the road are well readable. If the markings are worn out, or are completely absent, or are under a layer of dirt and snow, then keeping in the lane will not work.

2. Emergency braking

AEB – Automatic Emergency Braking System

What is he doing: prevents a collision with a moving vehicle in front.

One of the most effective protection options is the fast braking system. This feature can stop the car on its own if the driver is distracted or asleep.

The emergency braking system was first introduced by Volvo in 2008 and has since been widely adopted by vehicles from other manufacturers.

For emergency braking, a lidar or a front camera with a radar is used. Knowing the off-road speed, the car, depending on the time, determines and measures the distance to the moving car. The system itself determines whether the current speed can appear to a collision.

If the AEB detects the possibility of collisions, it will check the braking system. If at this point the driver applies the brakes, the system will not intervene.

But if the driver does nothing and the distance to the object disappears, then AEB first detects the warning and then suddenly stops the car unexpectedly.

In some vehicles, a similar system is used when reversing to prevent weather conditions at low speeds and in conditions of limited visibility.

3. Pedestrian detection

What is he doing: collision with pedestrians who are near the car.

In 2010, Volvo launched the first production car to be found to have a pedestrian detection system. Today, this feature is found on many modern cars.

A bunch of cameras and an accumulation of radars are used to attract the attention of pedestrians.that work at a distance of up to 40 meters. During the trip, the camera constantly analyzes what is happening, and when it notices a pedestrian, the radar is connected. He must confirm that there really is an object on the road that interferes with traffic, and also estimate the distance to it.

If the car detects that a collision with a pedestrian is occurring, it first detects the warning and requires the driver to speed up.

But if the driver noticed a warning on a pedestrian, then the electronics can stop itself.

Converted sensors were sometimes produced so that the system would also work at night, when it was hard for pedestrians to see on an unlit road. For example, such an opportunity has long been in the Mercedes-Benz S-class.

In addition, pedestrian detection works best at low city speeds. If the car is driving fast and the pedestrian suddenly runs out onto the road, the electronics may not have time to react and stop the car.

4. Blind spot detection

BLIS (Volvo) – Blind Spot Information System
BSM (Mazda) – blind spot monitoring
BSW (Mitsubishi) – Blind Spot Exception System

What is he doing: tells the driver about the presence of cars in those places that are not visible in the mirrors.

The blind spot is the capture area of ​​the vehicle that is not visible in the mirrors and is covered by the pillar separating the front and rear doors.

Blind Spot Detection helps drivers better understand the road situation in places where they are not pleasant.

While the machine is moving, ultrasonic sensors and radars installed on the sides and rear analyze the movement in an increase in the band within a radius of 180 degrees. Ultrasonic sensors meet sound waves to detect objects.

When a car with an unprecedented sensor detects another car in the blind spot, it signals this with an orange indicator on the side mirror or pillar.

5. What other chips are there

Some vehicles, such as Land Rover, also include vibration in the steering wheel and turn lock when the driver starts to disturb the adjacent lane while detecting a car in the blind spot.

Source: Iphones RU

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I am a professional journalist and content creator with extensive experience writing for news websites. I currently work as an author at Gadget Onus, where I specialize in covering hot news topics. My written pieces have been published on some of the biggest media outlets around the world, including The Guardian and BBC News.


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