Not long ago, BYD Auto released a new model seal known as the "Ocean Leopard", but also released a major new technology "CTB battery body integration technology", and the new model SEAL is not only from the advanced e platform 3.0, more importantly, CTB, iTAC intelligent torque control technology, rear drive / four-drive force architecture and front double wishbone and rear five linkage suspension, "four first hitch", can be said to be a collection of many black technology in one, no wonder this new car will let everyone pay so much attention.
The focus of this time is to talk about the battery body integration technology (CTB), in the early days of electric vehicle power batteries are packaged and installed, just like the engine assembly is a whole, by the battery cell composed of battery modules, and then by the battery module composed of battery packs, space utilization, placement position is a problem, the key is not safe, and CTP technology (no module technology), unlike the structure of traditional electric vehicles, the frame is the frame, the battery is the battery. CTP technology cancels the traditional battery module, the battery pack is directly composed of batteries, in the space utilization rate and volume ratio energy density has been very effective improvement, BYD automobile in this technology has been very skilled, has formed a mass production.
Battery body integration technology (CTB), is another upgrade in CTP technology, which is also a major technological breakthrough of BYD Automobile, as the name suggests, the technology is to make the battery and the body into a whole, forming an integrated structure, perhaps the battery and the frame are mixed together? That is more unsafe, on the contrary, it is safer, and the traditional electric vehicles due to the layout of the battery pack and the factors affecting the performance of the vehicle are reduced a lot, which brings not only a sense of space, but also maneuverability and safety.
This cancels the battery pack structure of the traditional electric vehicle, but completely integrates the battery with the vehicle structure is not designed to improve the space, which is inspired by the "honeycomb aluminum plate structure", the biggest feature of this structure is to save materials and reduce quality, the strength is also high, and CTB is the stable and reliable performance of the "blade battery" deeply integrated into the vehicle structure, the battery pack cover and the body floor plate integration, constitute an integrated upper cover, battery and tray sandwich structure, Thus making the overall structure of the power battery stronger and the force uniform.
Before also done a pressure load-bearing test, the truck weighing up to 50 tons on the integrated battery to crush, after the crushing did not appear smoke and fire and other abnormal phenomena, the power battery cell is still in a safe state, and can still be used normally after loading, through this test also proved that the strength of this structure is very high, before almost all the battery pack structure can hardly escape the results of battery damage after crushing.
Traditional electric vehicles need to design a certain space for the power battery pack, so the structure of the body is forced to change, which affects the optimal design, resulting in the inability to transmit the force out during the collision, resulting in higher risks. But on the e platform 3.0, because of the honeycomb aluminum structure of the battery pack, the blade battery and the high-strength body can be integrated, the body left and right through the use of floor beams and closed roll rolling parts design, in the collision of the collision of the multi-way conduction shunt played a good role, greatly reducing the impact of the impact on the battery equipped with CTB technology e platform 3.0 model, when the frontal collision, can make the safety performance of the internal structure of the car increased by 50%, side collision, can make the safety performance of the structure in the car increased by 45%. Super five-star performance is BYD's most basic safety standard.
Of course, CTB brings not only the safety of the battery, due to structural changes, so that the battery requires less space, the volume utilization rate of the battery increased to 66%, not only the energy density is also increased by 10%, but also better improve the use of space efficiency, while the space is unchanged while reducing the height of the body, both improving the visual effect and improving the aerodynamic performance. At the same time, the torsional stiffness of the seal body has also been greatly improved, reaching 40,500 Nm/°, which greatly expands the comfort and handling of the vehicle.
The SEAL model equipped with CTB technology was tested elk, through the speed of 83.5 hours per kilometer, the single-shift line test passed the speed of 133 km / h, the maximum lateral stable acceleration of steady-state slewing was 1.05g, this parameter has reached the sports car level, full of sport, that is to say, in driving can reach the sense of inspection of the sports car, which shows the great impact of CTB technology on the vehicle, the previous many constraints are released, so that the vehicle can play its own performance well.
The addition of the "marine leopard" seal has also greatly enriched the products of the marine series, and is more in line with the youthful product positioning of the marine network series, and the innovative "marine aesthetics" has a strong sporty atmosphere and elegant temperament. Under the blessing of the black technology of the "four firsts", it is more prominent, and once it is released, it is loved by the majority of young people, and the sale price of 212,800 yuan also makes seals and everyone will not be out of reach. From the safety, control, efficiency and aesthetics of the breakthrough improvement, "close your eyes to buy, open" seal is BYD's practical exploration of the next generation of electric vehicles and the realization of products.