Discussion on the collision test of Changan CS75 PLUS close to reality.

[car home? I believe no one wants to meet a traffic accident, but no one can guarantee not to be a victim of the accident. Therefore, the collision laws and regulations are becoming more and more difficult, which makes the present cars far safer than in the past. But when most of the tests are familiar to us onlookers, what is more challenging? The answer is yes.

●? Nowadays, all kinds of domestic safety collision detection institutions are constantly introducing the detection items of overseas institutions and making amendments according to the characteristics of our country. However, there are still some projects that are rarely tested in China at present, such as angular offset collision and high-speed rear-end collision test;

●? The difficulty of this test is not only that the side impact has a certain angle, but also that the test vehicle will carry out a high-speed rear-end collision test, that is, it will carry out a secondary impact;

Chang 'an, headquartered in the mountain city of Chongqing, organized such a rare collision test on weekdays. Simply put, it is to simulate the accidents that may occur at the most common intersections on weekdays. The difficulty lies in the large collision angle and higher speed.

This time, Chongqing people conducted two tests according to the NCAP standard being used by NHTSA in the United States, one was an angled side collision, and the other was a high-speed rear-end collision test.

Test 1: side 27 impact test

Difficulties: high collision speed and small energy absorption area of the car body.

More exciting videos are on car home Video Channel.

The first project of this test is a test project implemented by NHTSA in the United States, which was first added to 1996. The test process is to simulate a typical intersection collision accident in which a pulley hits the driver's side.

Specific to this test, the deformable car rushed to the driver's side of the car body at a speed of 62km/h from an angle of 27, and the violent impact sound could be heard at the moment of collision, partly because some parts of the car body structure collapsed according to the engineer's preset, resulting in scattered impact force.

There is another detail that can prove that the car body has not been deformed too much, and this is the window. In many real traffic accidents or collision tests, it is often seen that the window is broken, that is to say, the car body is obviously deformed and the glass is crushed when it is hit.

Observing the side of the car body, it is not difficult to find that the two anti-collision beams on the door, B-pillar and sill beam, play an important role, and the cover on the car body surface is obviously deformed, reflecting the internal anti-collision beam structure.

The solid body structure alone cannot completely protect drivers and passengers, and the comprehensive protection of modern complex traffic accidents also needs the contribution of vehicle safety technology.

The paint marks on the air curtain show that it supports the dummy's head well and prevents it from contacting the glass or even objects outside the car. In addition, the side airbag on the seat also plays a certain protective role.

Through the measurement after the test, the deformation intrusion of the B-pillar of the vehicle is only143 mm; ; The air curtain on the airbag side is fully deployed within 0.025 seconds, effectively covering the dummy, providing good protection, and the seat belt can be easily released for easy escape.

Test 2: 80km/h rear-end collision test

Difficulties: the impact speed is high, and the same car has experienced two collisions.

More exciting videos are on car home Video Channel.

Accidents in the real world are often not once, and two or even three collisions are everywhere. Moreover, because the acceleration ability of vehicles now far exceeds that of the past, high-speed collision accidents are common. Today, the second test conducted by Chang 'an at the test site is to make a rear-end collision test on the test vehicle that has already suffered a side impact.

Under the huge impact force, the rear side wall has also been deformed to a certain extent, but the field staff easily opened the door, which means that the body structure has withstood the test again.

It is also worth noting that after the first collision, the body structure has been deformed to a certain extent. In this case, the requirements for the body structure after rear-end collision are higher.

It says on the back:

Although we have watched countless collision tests, we experienced people are inevitably nervous when we watch the collision of three cars at a distance of 10 meters. From the results, the acute angle and high-speed rear-end collision tests are indeed more serious than the frontal collision. On the other hand, there is no visible deformation in the passenger compartment, which means that the probability of vehicle survival is very high. Although it is a bit vulgar, I really hope that you will pay attention to safety when driving in front of the screen. I wish you all a safe journey (text/picture? Car home? Tang dynasty)