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Double-sided pillar impact test, with added difficulty! On the issue of safety, BYD Seal has delivered a perfect answer.

In the double-sided pillar impact test conducted by the automotive safety testing program TOP Safety, the BYD star model Seal has achieved excellent results across all tested items. It is particularly noteworthy that in both tests, not only did the Seal's body effectively ensure the basic safety of three simulated occupants in the front and rear seats, but the battery pack inside the vehicle also passed the battery reuse test after the collision.

From people to the vehicle, all are safe and sound. How did Seal achieve this? Let's first understand the detailed process of this double-sided pillar impact test.

1. Double-sided pillar impact test, increasingly difficult

The pillar impact test is a traditional item in automotive safety testing. The conventional test procedure involves placing the entire vehicle on a specific track displacement device, which then leads the car to collide with an obstacle at a fixed speed, simulating a side impact scenario to test the vehicle structure's protective ability for the internal occupants.

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The general pillar impact test mainly focuses on the condition of the simulated dummies inside the vehicle. As long as the dummies' vital signs are basically normal after one collision, the safety test is considered passed. However, the Seal's participation in this test specifically added two levels of difficulty:

1. Increased the number of collisions.

The first collision occurs at a fixed speed of 32 km/h and a 75-degree angle, side-impacting the rigid pillar between the front and rear doors, which is the standard test item. After the impact, the same Seal vehicle voluntarily increased the difficulty and additionally conducted a second test with the rear door as the impact point, which is very considerate.

Who sits in the back row? The elderly, children, and guests. Adding the rear pillar impact test represents Seal's ultimate safety philosophy: it aims to protect every occupant in the vehicle! How did it perform in both tests? The test results show that the deformation of the front and rear doors, as well as the vital signs of the simulated dummies in various parts, are all within the specified range, and all the results are excellent!

2. Also added performance testing.Not only was the challenge of two impacts not enough, but the sea lion also added difficulty by testing the battery performance. Why is it said that testing battery performance is even more challenging?

On one hand, the battery component is already the "biggest safety hazard" of new energy vehicles. Even without a collision, it could potentially short circuit and explode, let alone endure two consecutive impacts. Moreover, due to the impact point being across the middle section of the car, the "shearing force" effect generated during the collision process will also have hard-to-predict negative effects on the battery pack.

However, despite multiple uncertain factors, the sea lion's battery pack only showed minor external deformation, while the electrified parts remained normal. After the test, the relevant technical personnel specifically removed the battery pack from the impacted car and installed it into another sea lion vehicle. After driving tests, all performance indicators operated as usual, with no abnormalities.

II. What is the confidence behind ultimate safety?

Not only did it increase the difficulty, but it also achieved perfect clearance. What allows the sea lion to accomplish this industry miracle? Skill gives courage, and behind the sea lion's all-excellent report card is the three core advantages endowed by the CTB (Cell to Body) battery body integration technology:

1. "Honeycomb-like aluminum" structure, building a high-strength vehicle sandwich

Drawing on the honeycomb structure and rectangular structure of the blade battery, CTB technology connects the battery pack with the vehicle structure, creatively creating a one-piece "vehicle sandwich" structure of the floor, battery cells, and tray. The blade battery acts not only as a source of energy but also as an important component for the vehicle's force transmission and energy absorption.

This unique design greatly expands the energy absorption space and energy transmission paths within the vehicle body, making the connections between various parts of the vehicle more compact and significantly reducing deformation in the event of an unexpected collision.

2. The force transmission path diversion mechanism allows collision energy to disperse without explosion

In terms of component connections, CTB technology combines the use of a fully flat structure, a through closed straight beam transmission, and the integrated battery pack threshold beam with multiple design concepts, forming three "top, middle, and bottom" force transmission paths inside the vehicle.Under this mechanism, new energy vehicles have gained a broader energy space, effectively enhancing the vehicle's endurance capabilities. Collisions from any direction can be rapidly dispersed to various parts of the vehicle, preventing the concentration of impact forces and achieving the effect of "transforming a tsunami into a stream."

3. The entire vehicle participates in the force transmission process, rivaling the torsional rigidity of luxury cars

The integrated design of the battery pack with the vehicle body allows the battery cover, cells, and frame, which were previously outside the stable mechanism, to all participate in the force transmission process.

This construction of the entire vehicle force transmission makes the chassis structure more stable and further lowers the vehicle's center of gravity. The resulting performance improvement allows the Seabiscuit equipped with CTB technology to have a high torsional rigidity of over 40,000+N.m/°, providing drivers with a luxury car driving experience that does not skid in corners or deform during deceleration.

III. Conclusion

When choosing a new energy vehicle, performance is a consideration, and safety is the bottom line.

No matter how excellent the performance is, without safety guarantees, it is a "running coffin"; on the contrary, focusing on safety while neglecting performance is also a downgrade in experience for users. Obviously, for car owners who love new energy, the Seabiscuit with CTB is the best choice for high-quality travel.