Shulou(Shulou.com)11/24 Report--

On January 16,"China Automobile Center" released the latest batch of C-NCAP safety collision test results. BYD Seal won the five-star safety evaluation with a comprehensive score rate of 88.6%, and passed the evaluation of "electric safety," and the safety performance was fully completed. This is the first hard core endorsement from a third-party authority since the launch of the Ocean Leopard seal. Since the implementation of C-NCAP Management Rules (2021 Edition), the comprehensive score rate of seal models ranks first in the overall list.

Test difficulty increased, C-NCAP new rules have higher gold content

The model participating in the test is BYD Seal 700km long endurance rear drive version, and the market guidance price is 262,800 yuan. According to the latest C-NCAP Management Rules (2021 Edition), seals have passed a number of high standards of safety evaluation. On the basis of the 2018 edition, the 2021 edition of "Management Rules" greatly increases the difficulty of testing, and the "gold content" of test results is higher. Taking the original frontal "40% overlapping deformable barrier crash test" as an example, it is upgraded to "frontal 50% overlapping moving progressive deformation barrier (MPDB) crash test" in the 2021 edition of "Management Rules," simulating that both vehicles collide head-on at a speed of 50km/ h. The collision kinetic energy in the test is greatly increased, and the test on vehicle structure is of course greater.

Seals scored a record 92.27 percent in occupant protection, which users are most concerned about, as shown in the graph. Among them, the collision score was 58.211 points (out of 60 points), the whipping score was 7 points (out of 7 points), the child occupant protection score was 3 points (out of 3 points), and the side curtain and E-CALL device received 4 points (out of 5 points). In terms of active safety, seals also scored 92.97% because of their excellent performance in various functions.

Based on CTB technology to create a pure electric exclusive safety body structure, seal designs a high standard of safety for users

"Safety is the greatest luxury of electric vehicles," it is said that high standards of safety are designed, which has been fully verified on seal models. Based on the advanced e-platform 3.0, Seal first took CTB battery body integration technology. The inspiration for this technology comes from honeycomb aluminum panels, and specifically it is also very easy to understand. For example, two sheets of paper stacked together can still be easily folded into various shapes, but if the honeycomb special structure is added in the middle of the two sheets of paper and bonded together, it can become a material with better structural strength and toughness. Similar forms are almost everywhere in daily life, as small as express packaging boxes, as strong as cushioning devices for airdropped armored vehicles, and as light weight and high strength honeycomb aluminum plates, which are more widely used in the aviation industry.

Thanks to this inspiration, BYD engineers developed a sandwich structure consisting of a battery pack top cover integrated with the body floor, a "blade battery" and a battery tray. In particular, the aforementioned "honeycomb special structure" has become a "blade battery", which is different from ordinary soft packs or cylindrical batteries. CTB battery system with this structure can give full play to the strength advantages of "blade battery" as both an energy body and a structural part, which not only solves the problem of volume utilization rate of battery system, but also obtains a longer cruising range by virtue of the system energy density advantage. Because the traditional body floor is omitted, And it can play a significant role in strengthening the body, bringing a series of advantages to the vehicle's styling design, interior space, ride comfort, NVH, handling performance and safety performance.

Seals have a torsional stiffness of 40,500 Nm/°, comparable to million-class luxury cars. The CTB battery system also enables a more complete and efficient crash stress transfer path with the body-in-white, allowing for better kinetic energy absorption when the vehicle collides. Compared with the common CTP structure, the CTB battery system of Seal has improved the longitudinal force transmission performance by 83%, the safety of the interior structure by 50%, the lateral force transmission performance by 125%, the safety of the interior structure by 45%, and the intrusion of the vehicle side column collision by 45%. In addition, the seal's full-frame subframe also helps to disperse stress, and its special collapse structure design can absorb collision energy more efficiently and protect the safety of occupants.

Safety is just one of the many advantages of the Seals. With the addition of "four first rides," seals have innate athletic talent, which can fully meet the high standards of driving pleasure for young users in the new energy era. In addition, the seal's high efficiency, good battery life and fast charging have also been highly recognized by users and the media. In the activity of "Winter Test of New Energy in 2022" organized by a well-known media, the seal was forbidden to withstand the test of low temperature and cold. In the competition of more than 60 test models, many test scores of seal models ranked first, and the reliability of products was effectively verified. By the end of December 2022, BYD Seals had sold more than 50,000 vehicles in less than five months. With the strength of hard core products, BYD seals, which are good-looking, easy to open, fun and safe, are definitely the best choice for high-quality travel in the new energy era.

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