The car crashed into the water and broke the window? I'm afraid you can't open it! This safety device is your best choice.

Now people's demand for cars is becoming more and more obvious, and the safety of cars is also improving, but do you know these car safety devices? Generally speaking, automobile safety devices can be divided into active safety devices and passive safety devices. The first type of facilities and equipment can help drivers to effectively control vehicles in any state, thus protecting themselves and reducing all kinds of automobile accidents. The second is to protect passengers and pedestrians in the event of an accident, so that the car has stronger safety. Today, Bian Xiao summed up some car safety devices that cars don't always know. Come and find out!

Engine sinking technology

This technology is ubiquitous in virtually every car. When there is a violent collision or serial collision between vehicles, the huge impact force may knock the "big iron block" of the engine into the cockpit, thus posing a safety hazard to the front passengers.

When the vehicle encounters a huge impact force, such as a violent collision or a serial collision, the huge impact force will be transmitted to the "big iron block" of the engine. Because it is facing the cockpit, it is easy to cause secondary injuries to the front passengers.

In this case, the automobile engineer chooses to leave a sinking space for the engine. In the event of a violent collision, the engine bracket makes the engine sink downward instead of directly hitting the cab.

The impact force will cause the engine bracket to sink several centimeters. Don't underestimate this change, it will make the engine stuck on the chassis and form an effective protection mechanism.

Second, the adaptive low beam system

Based on the automatic adjustment of headlight height, after realizing the automatic adjustment of headlight longitudinal direction, the next problem is the left and right adjustment of headlight and the beam of headlight. Can it adjust itself to the best condition of my car now? Ma Ruili said we could.

In 2003, Ma Ruili of Manietti installed the dynamic adjustment lamp on the car for the first time, which laid the foundation for the adaptive headlight system. In 2006, the company introduced the adaptive front lighting system AFS (adaptive? Front? Lighting? System) headlights. AFS is a technology based on automatic headlight height adjustment, including up-and-down adjustment, left-and-right adjustment and beam adjustment. It consists of a series of dimming motors and optical mechanisms. Compared with ordinary lighting, the most striking feature of AFS is the curve lighting mode, which helps drivers to provide road lighting in front of curves by adjusting light beams and supplementing lighting. The application of AFS in curves is as follows:

At the same time, in addition to the curve lighting mode, AFS also has a variety of preset lighting modes such as rainy day lighting, highway lighting, urban road lighting, and rural lighting. Taking the high-speed lighting mode as an example, it shows that when driving on the expressway, higher speed requires wider and farther lighting than urban roads. AFS can adjust the headlight power and light distribution angle, which makes the driver's vision wider and improves driving safety. Other modes are also completed by adjusting the light beam, that is, automatically adjusting the light beam when the judgment condition is reached, so as to provide better lighting conditions for drivers and avoid accidents.

Different lighting modes can provide safe lighting that is more conducive to the current driving situation. I believe many people should have noticed this. This technology provides a strong support for driving safety at night.

Thirdly, adaptive high beam system.

Corresponding to AFS is the adaptive high beam system ADB (adaptive? Driving? Beam), ADB concept was developed by BMW Martin in 2005. Enders was first proposed in ISAL. It is an intelligent high beam control system, which can adaptively change the type of high beam according to the road conditions. It can turn on and off the high beam or change the type of high beam adaptively according to the driving state, environmental state and road vehicle state of the vehicle, and at the same time according to the position of the vehicle in front of the vehicle, so as to avoid dazzling other drivers.

Limited by the space of optical module, ADB has two main applications at present, the intelligent near-far optical switching system IHC(Intelligent? High beam? Control? ) and intelligent LED matrix beam system (matrix? ADB), these are relatively mature technologies. IHC technology is used in Roewe RX5? There are applications on MAX, and Matrix? ADB is configured on the high-speed sagitar.

The IHC system uses the camera of the whole car to monitor the road ahead, and automatically switches the high beam to the low beam when it detects a car ahead. At the same time, if it detects that the road ahead is in good condition and there is no car, it will automatically turn on the high beam to provide illumination for the distant road. So the working principle of IHC is to automatically switch on and off the high beam.

And the matrix? ADB controls the lighting of any LED single light source in the matrix by judging the road conditions, so as to achieve the purpose of controlling the light shape, maximize the lighting range and improve driving safety, and at the same time, it will not dazzle other drivers.

Emergency handle for escape

Many people don't notice this. After all, people's subconscious way is to open the door after the vehicle enters the water. However, it is difficult to open the door without waiting for a while because the vehicle will be under great pressure from the water pressure after entering the water. Although the electronic equipment of automobiles is becoming more and more advanced, there are still potential safety hazards. For example, the situation that the door cannot be opened after wading still exists.

In fact, most cars have an escape ring inside the trunk, which is mechanical. In an emergency, we just need to put down the rear seat directly and open the trunk from the inside to escape.

Write at the end:

Generally speaking, with the development of technology, there will be more and more active safety technologies on vehicles, such as electronic stability system, early warning system, ABS and other technologies that are often heard at ordinary times, while passive technologies, such as seat belts, airbags, car body steel structure, etc., can effectively reduce personal injuries after accidents. But although there are many safety devices in the car, it doesn't mean that we can take it lightly. On the contrary, car safety devices can only provide assistance and protection, and only the driver can drive normally is the wisest choice.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.