Frame ground beam patent

25% offset collision is familiar to everyone. It seems that many people judge the strength of the car body structure from these details, but this leads to a kind of "test-oriented" structural design. Because all collision tests are aimed at the driver's side, some car companies have begun to strengthen their countermeasures against this part, and the co-pilot side has naturally been ignored. Fortunately, the latest rising China automobile safety index, C-IASI, was officially announced at the end of last year, and the first domestic public demonstration test of 25% frontal offset collision was completed at Chongqing Test Base for the first time. Of course, the last two words "test" are the most important, which also means that C-IASI will soon fill the gap in this field in China, and its influence will be quite far-reaching. It has been put on the agenda for car companies to improve their own vehicle structural design. In the latest patent application information, Chery announced a new invention of the front engine room safety structure, aiming at 25% offset collision.

Because it is an application for a patent for invention, it is naturally the first. Of course, this move is also a brand-new front body structure developed for the understanding of car companies' own structural level. Other companies may have other solutions. Last September, before the C-IASI test began, the patent application was deeply studied. In fact, the solution is very simple, which is clearly written in the abstract of the invention: two front longitudinal beams and two front wheel housing side reinforcing beams symmetrically arranged left and right, which are characterized in that one end of the reinforcing bar extends out of one end of the corresponding transverse connecting beam, passes through the corresponding front longitudinal beam and is fixedly connected with the front longitudinal beam, and the other end of the reinforcing bar passes through the other end of the corresponding transverse connecting beam and is fixedly connected with the transverse connecting beam. A reinforcing plate is also arranged between the reinforcing rod and the outer side wall of the corresponding front longitudinal beam. According to the car body structure of the invention, the front longitudinal beam participates in the whole 25% small offset collision process and shares the force and energy generated in the 25% small offset collision process, thus effectively improving the small offset collision performance of the car and achieving the purposes of reducing the deformation of the passenger compartment and reducing the injury to the passengers.

What is more striking is that this new structure is not only aimed at the driver's side, or only at the co-pilot's side, but at both sides. The explanation itself is not for the exam.

As it was just declared in September last year, it is unlikely to join the existing models immediately. Of course, the structure is interoperable. In fact, the current model frames are generally similar. Once verified, it should not be too difficult to modify them. Of course, from the perspective of cost, it will inevitably increase. If high strength steel is used, the cost will increase further. As for the model level that may be adopted for the first time, only from the declaration diagram itself, it is closer to the star range TX (below), mainly.

▲ The above picture shows the structural diagram of the Star Route TX engine room.

I wrote a lot of collision accident analysis in the early stage. Chery developed the 3R-Body body mechanism platform at the body structure level with many years of experience, and applied it to Arrizo and Tiggo departments. The actual combat results are quite eye-catching. At present, the corresponding structural reinforcement has been done for the 25% offset collision, and it seems that considerable efforts have been made in structural research. It is not easy to draw a conclusion when it will be passed. Besides, I'm not good at publicity, and I don't necessarily know whether I'm really adopted at the first time.

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