What is the safest new energy car?

In recent years, new energy vehicles have gradually become mainstream. The problems of their security are also more than being valued. After all, new energy vehicles usually have a large capacity battery pack. Once an accident, the battery pack is fire, it is very It may cause serious injuries to people outside the car. Plus the rise of C-IASIs since 2019, the collision test results of China and support have also become an object of each new energy car company to challenge.

At present, the medium-to-use research has been tested for 4 new energy cars, which are 蔚 来 EC6, ideal one, Domestic Tesra Model 3 and Xiaopeng g3. In these 4 new energy cars, the best collision achievement is a free EC6, which is very curious, as a domestic brand, how is it defeated in C-Iasi? Through the recent car safety day event, I will find the answer to this question.

About the results of the grades of the mid-to-earth research collision test, we have done detailed content, interested students can click on the right Link Review → (Previlient in the Strision! Is it worth $ 400,000?). Today, we focus on talking to the body structure design of EC6, and some of the features of the Shanghai R & D laboratory.

In the event site, the official exhibited EC6 in the middle and self-supporting collision test, and the three cars participated in the front 25% respectively. Offset collision (right front white car), roof pressure test (left front gray car) and side collision (rear black car).

Let’s talk about the 25% bias collision that everyone cares about. It can be seen by the model after collision test. EC6 is 25 In the percentage bias collision, the vehicle’s vertical beam (above the yellow frame structure) does not have collapse deformation, indicating that the vehicle does not participate in the main capability process when the collision occurs. Under this premise, the EC6’s passenger compartment is still intact, and the A column has no deformation, the threshold (the red frame above) has not deformed. This means that the vehicle is in the occurrence25 percentage bias collision, the energy of the impact was dispersed throughout the body, rather than concentrated on a certain point.

EC6 can achieve excellent results in the 25% bias collision, and there are two points for the longitudinal beams. First, the front anti-hit beam of EC6 (the yellow arrow above) is wider than the general model, so that the first sucking can be taken in contact with the impact obstacle when a collision occurs.

More importantly, the body of EC6 increases a unique torque cartridge structure in the vertical beam near the firewall (above) Yellow arrow refers to the location). This torque cartridge is connected to the beam of the body, the front fence, the A column, and the threshold. After the anti-collision beam of the head, the impact point is in contact with the hub, the hub is extruded the torque cartridge, the torque box rapidly dispersed the energy of the impact to the front of the plate, a column, the door sill, etc., to avoid collision energy impact Single power point. Previously we saw such a smart absorbing structure design, or on the Spa architecture Volvo XC60, S60 and other models. The Toyota TNGA model of the same superior research collision score is still to absorb the energy of the collision.

Other structural strengths are insufficient, or there will be deformation. The EC6 believes in the body, it has also been heard. It uses the same all-aluminum body structure with ES6, ES8, and the threshold is designed with integrated cavity, not only the yield strength is comparable to ultra-high intensity heat molding. Steel, while also reducing the weight of the vehicle and enhances the battery life of the electric vehicle. In addition, the rear of EC6 has an integrated cast aluminum structure (current Tesla Model Y is also used in this integrated casting technology), reducing the connection point between vehicle structural members, enhances overall strength.

Interesting point is that the co-pilot of Wei came EC6The airbag is not arranged on the dashboard like other models, but placed in the position of the roof sun. This is mainly because the models of the awareness have a co-pilot, when the covaround is half relieved, the traditional front air bag cannot effectively protect the safety of the passengers, so there is only to put it on the roof Positive airbag.

Classmates who are familiar with our collision test Interpretation of the article know that in the evaluation criteria for the collision test, the core elements of the side collision have Two points, one is that the vehicle B column will not be less than 12.5cm in the collision, and the side airbag can be unfolded in the collision test in the collision test.

The strength of the B column structure of the EC6 is completely no problem, and the B-column is 19.5cm from the driver seat center in the collision. , Far higher than the standard line of C-IASI minimum 12.5cm. I also actually sat in the EC6 collision test vehicle, I took the 182cm and 75kg body shape to the main driving, and the B column after the invasion did not squeeze my torso, which explained in China. Time-speed 50km / h, a side collision of 1.5 tons of collision cars, the driver is sufficient living space.

In addition to the structural strength of the vehicle B column, the role of the side airbag and the side air curtain in the side collision is also very critical, in fact, this is the high end The model is not worried, the current mainstream models of the price of more than 200,000 prices are standardized, and the front-rowless airbags, as well as the front-rear row of side gas curtains.

However, more interesting is that the area of ​​the front-rowless air curtain covers the EC6 is large, not only the vertical height is coinctered with the side airbag, but also The front and rear directions extend from the B column to the root of the A column, which allows it to be in the effective range of the car in its own valid, whether it is in front of 25% bias collisions or on the side collision. You must know that even Walvo is in terms of safety, the length of the front-rowless air curtain is far away.Have such exaggerated!

Everyone is another security concerns from electric vehicles from batteries, how to ensure that the battery pack is not damaged after collision, is a new energy car A large problem compared to the traditional fuel truck. After all, the traditional fuel truck’s fuel tank is much smaller than today’s battery pack, and the buffer space left to the fuel tank is more abundant. In fact, about this problem, we have already involved in the part of the structure analysis of the forebody, whether it is an excellent car head torque cartridge design, or a very high integrated cavity threshold and a bodied casting in the back of the body. The structure provides sufficient protection for battery packs below the floor.

As for the second laboratories located in Shanghai Jiading District, it is mainly responsible for the entire vehicle and three of the car. The test of the electric system, because there are many confidential projects in the laboratory, so the photos are prohibited, and the pictures are provided by the official official.

Motor Durable Experimental Shelf

The entire laboratory includes multiple test items, such as the motor durability test gear of the above figure, is the vehicle The drive motor is 24 hours full load operation, and the ambient temperature and humidity of the motor operation are constantly switching during operation, verify high power, high speed drive, and the reliability of the motor.

Electromagnetic laboratory

, the electromagnetic laboratory is to drive the vehicle on the gantry, open the light, a vehicle, and sound of the vehicle. The equipment, the use of antenna to transmit interference resistance of the vehicle, test the anti-electromagnetic interference capability of the vehicle to deal with various complex electromagnetic environments where vehicles may face in real life.

9 Delivery Motion Motion

The core of the second laboratory of Jewa Jiading District is this 9 degree of freedom driving simulator. The device can simulate the performance of the chassis, driving, tire, etc. of the vehicle model, the performance of various walking components of the vehicle model, and simulate the vehicle through a plurality of hydraulic mechanisms of the bottomThe body attitude changes during the real trach.

9 Delivery driving analog warehouse

Further, the device can help the technician’s simulation test of automatic driving function, which greatly reduces research and development. Time cost and improve R & D efficiency. This equipment is currently more common in Europe, BMW, Ferrari, Alpha Middot; Romeo, Maserati and other brands are also using this simulation equipment. The second laboratory of Shanghai Jiading District is the first Asian, the only 9 degree of freedom driving simulator in China. Of course, this type of equipment used for R & D and testing, there are many in the second laboratory of Jida, which is due to the existence of these equipment, which has greatly improved the research and development efficiency of today’s new energy vehicles.

In the excellent structural design, the cost of high aluminum body, as well as the vigorous investment in the R & D center, 蔚 来 EC6 is only Safety is the top level of current new energy vehicles. Although the controversy on new energy vehicles in terms of new energy vehicles is still not small, it is undeniable that new energy vehicles pay attention to safety in security. In particular, this kind of enterprise with international long-term goals is more accomplished more than some new forces in the whole vehicle. Is this not what we are willing to see?