The difficulty is greatly improved! Euro -NCAP collision code 2020

On the other hand, there are not only many automobile brands in Europe, but also European brands account for more than half of the domestic joint venture models and imported models available in China market. Therefore, the results of these models participating in the crash test at the European base camp will also have an impact on consumers. After all, most imported cars will not participate in our domestic crash test.

The test items in 202 1 are still divided into four parts: adult occupants, child occupants, vulnerable road users and safety assistance. However, except for the child occupant, the other three tests have changed significantly.

As can be seen from the above figure, the main new items in 20021test include far-side protection, moving progressive deformable guardrail, driver monitoring, AEB VRU pedestrian reversing, AEB- intersection-intersection, automatic emergency steering, whipping/rear-end collision protection and rescue, release and safety, with up to 8 items.

● Protect "adult passengers"

In terms of protecting "adult occupants", the first change is the frontal 40% offset collision. In the previous test, the front guardrail was fixed, but from 202 1, the front offset guardrail was changed to a mobile car with a weight of 1400 20kg, and the relative speed with the test car was 50 1km/h, which was similar to the side impact test of the deformable mobile guardrail.

In fact, in the current crash test system, whether it is frontal 100% offset crash, 40% offset crash or deformable moving guardrail side crash, for traditional car companies, these scores are basically equal to points, and there will be no big mistakes. However, this NCAP will increase the difficulty of two of the tests, and I wonder if it will produce unexpected results. In addition to the reduction of the side impact score of the deformed moving guardrail, the impact score of the side column is also reduced from 8 to 6.

As we all know, in the direction near the door, the current mass production cars basically have side airbags and side air curtains to protect passengers, but on the side near the co-pilot, the car body has no other protection measures except being pulled by the seat belt, so if the impact force is too large during collision, the head and neck are easily injured. I believe the newly added project is aimed at this situation.

This "rescue" test project includes that after the collision accident, the system automatically sends the number of people in the car and the accident address to the background or rescue agency, as well as the automatic door lock, the opening strength of the door and whether the hidden door handle is easy to open. As a reference for grading. If the performance is poor, the total score of the previous "adult crew" project will be deducted by up to 2 points, and the punishment will be considerable.

In addition to these obvious changes, the total score of whipping test doubled, and the corresponding scores doubled before and after, and the total score reached 4. The AEB score of urban low-speed road conditions was deleted from the main items of adult passengers and added to the latest "safety assistance" item. Therefore, the total score remains the same, with a full score of 38 points as 202 1.

Changes of Protection/Safety Assistance System for "Vulnerable Road Users"

Protecting "Vulnerable Road Users"

In terms of protecting "vulnerable road users", the main changes focus on preventing vehicles from colliding with pedestrians and cyclists. In last year's exam, these two items got 6 points respectively, but in the latest exam of 202 1, the scores of both items rose to 9 points, so the total score also rose from 48 points last year to 54 points.

Pedestrian protection is divided into two parts. In addition to the original scene for pedestrians in the same direction or in the longitudinal direction in front of the vehicle, the scene of vehicles turning left and right and encountering pedestrians crossing the road has been added. At the same time, in these three scenarios, in addition to AEB active emergency braking, the test of ES active emergency steering function is also added.

The data show that pedestrians behind vehicles account for 17% in pedestrian collision accidents every year, of which 63% are elderly people and 6% are children under 12 years old. These people are slow-moving or short in height, and they are prone to blind spots when drivers reverse.

This time, the protection for cyclists has also increased to 9 points. Although it seems to be only the improvement of scores, the exam scenes have also increased accordingly, just like protecting peers.

Generally speaking, in terms of the protection of "vulnerable road users", the new regulation 202 1 has higher requirements for the protection of pedestrians and cyclists, with more test scenarios, which is also higher than the previous requirements for AEB/AES system. At present, we have not seen how the AEB system performs under such harsh test conditions, nor have we seen how the first batch of "crab-eating" cars performed this year.

● Requirements for "safety assistance" system

The total score of "safety assistance" system has increased from 13 last year to 16 this year. Seat belt reminder, speed assistance system, lane assistance system and other items still retain their original names, but some test contents have changed. In addition, the previous "AEB high-speed braking" has become the AEB/AES vehicle-to-vehicle evaluation after the "AEB low-speed braking" belonging to the "adult passengers" project.

At present, there are usually two ways to monitor the driver's state. One is physical mode, which can judge whether the driver's hand is on the steering wheel by embedding a sensor in the steering wheel or adding a torque sensor on the steering column. The second is the visual method, which monitors the driver's eyeball and expression through the camera to judge whether the driver's attention is on the road.

In the important project of "safety assistance", the score of the whole AEB is 6 points, of which 4 points are AEB/AES systems in front of and behind the vehicle. However, there is a prerequisite for the score of this project, that is, you must get a "good" in the front seat whipping test to qualify for this test.

Whether for pedestrians or vehicles, the new test of 202 1 will increase the test scenarios of intersections. For the camera and millimeter wave radar commonly used in AEB system, the detection distance is also higher, and the test results are worth looking forward to.

Summary:

Many people say that since the American IIHS launched the frontal 25% offset crash test, the test difficulty of NCAP in Europe can no longer catch up with IIHS. However, judging from the 202 1 European NCAP collision regulations, it is more difficult for car companies to get five stars than the previous regulations.

On the other hand, although Euro -NCAP did not introduce a smaller frontal offset collision, and even changed the frontal offset from 40% to 50%, it seems that the difficulty is reduced, but from the requirements of AEB and various safety auxiliary systems, it is obviously more difficult than IIHS. This change may represent the research of Europe -NCAP, which shows that it is better to improve vehicle safety and prevent collision by electronic auxiliary system than to simply improve the physical structure strength of vehicles.

However, on the whole, the examination difficulty of NCAP and IIHS in Europe is increasing year by year. For car companies, this forces them to improve the safety performance of their products, while for consumers, the cars we buy are getting safer and safer. Why not? @20 19