Hongqi H5 door／anti-collision beam dismantling

　　The original title of the article: Not only close to the people but also safe, Hongqi H5 door/anti-collision beam dismantling　

　　Hongqi may be one of the few Chinese brand cars that can make most consumers feel emotional about it today. As a brand with a lot of halo and aura in China, it always seems to give people a feeling of being out of reach. However, this impression was broken with the launch of the mid-sized Hongqi H5 (hereinafter referred to as H5). Whether it is the price range or the appearance, the H5 is close enough to the people, changing the image of the official car that Hongqi gave people in the past. In September this year, the Hongqi H5 participated in the C-NCAP crash test based on the latest rules, and also received a five-star good result. Now we have the experimental car participating in the side collision, and we can see how the Hongqi H5 performs in terms of doors and collision beams through it.

　　The model dismantled this time is the intelligent version of the 2018 Hongqi H5. In terms of passive safety configuration, in addition to the head air curtain and rear seat belt unfastened reminders compared with the entry-level version, it is the same as other models in the whole series. This difference will not have any impact on the door and collision beam structure, so it has strong reference significance.

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　　Since the H5 has participated in the C-NCAP crash test, let’s review its performance in the test before dismantling the car. From the overall score point of view, the H5’s comprehensive score rate is 87.5%, which meets the five-star rating standard of C-NCAP.

　　– Front anti-collision structure

　　Since the actual dismantled test car participated in the side crash test, the structure of the front and rear of the car was not affected by the collision. So how does the Hongqi H5 do in the collision avoidance part of the vehicle head? Let’s take it apart and take a look.

　　Everyone knows that when a vehicle is in a frontal collision, the strength of the front collision beam will have a great impact on the collision result, so in the design, high-strength materials are usually used to absorb some of the collision energy through deformation. But on the other hand, after a collision with a pedestrian, if the soft bumper is not enough to cushion the force of the collision, will the pedestrian’s legs come into direct contact with the very hard front collision beam?

　　This kind of shield design can be seen on many cars, but in most cases, these resin shields are simply fixed in the front area of the car, unable to transfer the impact force in a frontal collision. However, on the Hongqi H5, the installation of this shield has some differences.

　　Hongqi H5 adopts a front anti-collision beam with a collapse design and a similar "mesh" structure, which has a better energy absorption effect than the ordinary double-layer stamped steel plate structure anti-collision beam.　

　　Overall, from the collision function area of the front part of the Hongqi H5, it has its own characteristics in terms of frontal collision and pedestrian protection, and the test results of C-NCAP can also prove that its design can work effectively in actual collisions and achieve the expected design goals.

　　– Front details

　　As a luxury mid-size car of a Chinese brand, the experience of details is also very important. For example, when opening the engine hatch, if you lift it lightly, it can slowly rise up by itself. The sense of high-end is often reflected in these infrequent details.

　　When the engine is running, the noise and vibration generated have always been one of the important factors affecting the comfort of drivers and passengers, so in the case of unable to reduce engine noise, how to isolate this part of the sound through external measures has become an important indicator to test the NVH characteristics of the whole vehicle.

　　The entire engine compartment of the Hongqi H5 is very orderly. In addition to the engine cover, resin trims are also arranged around the engine to cover the wiring harnesses inside the engine compartment and other places that look messy, creating a sense of sophistication visually. This approach is also in line with Hongqi’s brand positioning.

　　From the details of the front part of the car, the workmanship and materials of the Hongqi H5 in terms of NVH are still good. In some common places where sound-absorbing materials are installed, materials such as sound insulation cotton are more or less installed, which makes a significant contribution to improving the NVH characteristics of the vehicle.　

　　2 Rear anti-collision structure and door anti-collision structure

　　- Rear collision beam structure

　　The rear collision beam of the car body can reduce the damage caused by the rear-end collision of the car at low speed. Since there is no rear-end collision item in the general crash test, the quality or even the existence of the rear collision beam will not affect the test results. Therefore, some manufacturers have lowered the standard of the rear collision beam due to cost control and other reasons, or even omitted it. So how is the Hongqi H5 doing in the rear collision beam?

　　The rear anti-collision beam of Hongqi H5 uses a "mouth" structure, which has a certain energy absorption effect like the front anti-collision beam. The rear energy absorption box uses a more common square structure, and two collapse grooves can also be seen on it.

　　Although the anti-collision structure at the rear of the vehicle cannot be reflected in the crash test results, the structure of the rear anti-collision beam and energy absorption box of the Hongqi H5 meets the mainstream market standards and will not make people find any dissatisfaction.

　　Front and rear doors and details

　　We all know that when a vehicle is subjected to a side impact, the door will play a certain protective role in the passenger compartment. Not only that, but the workmanship of the door can also have an impact on the NVH characteristics of the vehicle when it is running. Judging from the side impact results of C-NCAP, the Hongqi H5 received a full score for the protection of the front driver in the side impact, but lost more points in the chest subdivision of the rear passenger. So what about its structure inside the door? Let’s take a look at it together.

　　From the front door structure after the collision, the inclined door collision beam not only participated in the collision, but also maintained a good structural state after the collision, and no obvious deformation was found. This can play a very effective role in protecting the occupants of the driver’s seat. The front door performs so well, let’s take a look at the rear door.

　　The colorful imprints left after these collisions all demonstrate that in the event of a side collision, the side airbags and air curtains can be ejected promptly and quickly, and the ejected positions are not offset, which can effectively protect the driver and occupants.

　　Summarize:

　　Judging from the crash test results of C-NCAP, the five-star score of Hongqi H5 is enough to be called excellent. In the structural part of the crash, its design meets the mainstream standards in the market, the safety structure of the door and collision beam is complete, and there is no room for cutting corners. In terms of NVH sound insulation and vibration filtering, you can see the use of a lot of sound insulation and sound-absorbing materials. With its dynamic appearance and honest materials, Hongqi has shown consumers that they want to have more consumer fans through the H5, and from the increasing visibility on the road, it can be seen that it has indeed achieved this. (Author: Miao Shuai)