CATL has formally unveiled the Bedrock Chassis, hailed because the world’s first ultra-safe skateboard chassis. This revolutionary design boasts spectacular sturdiness, in a position to endure a frontal impression at speeds of 120 km/h with out igniting or exploding. The Bedrock Chassis redefines security requirements for clever chassis programs by providing thorough safety throughout varied situations and pace ranges.
Designed with a battery-centric strategy, the Bedrock Chassis employs Cell-to-Chassis integration expertise. This characteristic merges the battery cells straight into the chassis, permitting them to share a structural design. By decoupling the chassis from the higher physique, this chassis absorbs as much as 85% of the car’s collision power, outperforming conventional chassis designs, which usually soak up round 60%.
Due to a number of technological developments, the Bedrock Chassis has efficiently handed the trade’s first twin excessive security take a look at, combining excessive pace with extreme impression. It met the difficult 120 km/h frontal central pole impression take a look at with out combustion, explosion, or thermal runaway, establishing a brand new benchmark for security.
For context, the frequent pace for frontal impression security exams in C-NCAP (China New Automobile Evaluation Program) is 56 km/h. A collision at this pace imparts an power similar to a fall from a 12-meter constructing. Conversely, an impression at 120 km/h is akin to falling from a 56-meter constructing, representing a collision power that’s 4.6 instances higher than that at 56 km/h.
In additional rigorous frontal pole crash exams, which simulate impacts with non-standard objects equivalent to energy poles, the impression space is only one/6 of that concerned in a full-width frontal impression, considerably escalating impression stress. At a pace of 120 km/h, the stress skilled by the chassis throughout a frontal pole impression is twenty-one instances increased than that in a full-width frontal impression at 56 km/h in C-NCAP testing.
Given the intense pace and power of the crash exams, no prior new power car has tried a frontal pole impression at 120 km/h. With this groundbreaking achievement, CATL’s Bedrock Chassis is pioneering new paths for security requirements within the automotive trade.
The chassis additionally encompasses a distinctive three-dimensional biomimetic tortoise shell construction, which integrates the physique and power items for enhanced safety. Its superior arresting construction disperses impression forces by way of a number of pathways, steadily slowing the car throughout a collision whereas lowering the danger of cabin intrusion. Using submarine-grade hot-formed metal (2000 MPa power) and aerospace-grade aluminum alloy (600 MPa power) additional will increase the chassis’s rigidity.
As well as, the Bedrock Chassis integrates an ultra-safe battery cell design, using NP expertise and a high-ductility energy-absorbing insulation movie. It excels in high-voltage disconnection, attaining immediate disconnection of the high-voltage circuit inside 0.01 seconds of impression and absolutely discharging residual power in simply 0.2 seconds, setting a brand new trade benchmark.
The battery cells themselves have undergone rigorous testing, together with high-speed sled impacts at 60 km/h, 90-degree bending, and breakthrough sawing exams—none of which induced fireplace or explosions. These achievements, all firsts within the trade by CATL, elevate the security requirements for battery cells.
Furthermore, the Bedrock Chassis expands design flexibility by decoupling the chassis from the higher physique, facilitating enhanced spatial utilization whereas minimizing the possibilities of harm. That includes fourth-generation Cell-to-Chassis (CTC) and inverted battery cell applied sciences, the design helps L3 to L4 clever driving capabilities by way of mechanical, software program, and EE decoupling, selling adaptability and clever collaboration.
On the launch occasion, AVATR, the primary automaker to undertake the Bedrock Chassis, together with CAIT-SH, CATL’s division centered on skateboard chassis, signed an settlement to boost their cooperation geared toward making a safer, high-quality journey expertise for shoppers.
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