Recently, zero-running cars released their own CTC battery-free pack technology at their own technology conference on April 25, and I also have my own views on this brother, so let's talk briefly today.
The first is CTC technology, the analysis data on the Internet has been a lot, here I briefly summarize. The first domestic mass-produced CTC proposed by zero-running cars is not recognized by me personally. CTC is not a zero-run car-led technology, but the future of new energy brands will do the technology, in order to improve the endurance of the vehicle, must be further upgraded in battery technology, battery pack capacity upgrade is nothing more than two roads, one is in the limited space as much as possible discharge cells, the other is to put in the battery cell capacity as much as possible (battery technology upgrade). Any one of the road upgrades the electronic group capacity will be improved, so that the endurance of new energy vehicles will be improved. CTC technology is the first kind, by making the battery and a disk into one, reducing the number of parts, the free space can also be arranged more batteries. This should be easier for everyone to understand.
The first route has several large stages as of now, the first order is the standardized module stage, and there are many other components in the battery pack at this time. The second order is now the stage where many models are located, which belongs to the stage of large modules, the parts inside the battery pack are less than 20%, the battery cells inside the battery pack are more, and the first and second orders can also be called battery pack technology. The third order is the CTC technology proposed by zero run, which combines the battery pack and the chassis into one technology, which can further reduce the parts and components by 20% according to zero run.
Therefore, the CTC technology of zero-run is as shown in the figure above, and the battery, electronic control parts, wiring harness, etc. are directly installed under the body, and then the external structure similar to the tray is integrated with the body. Compared with the current mainstream CTP large module technology, from a purely technical point of view, this is indeed a good choice to improve the battery capacity and endurance of new energy models. Seeing this, many users should be recognized for the zero-run CTC technology, which is also true for me, but I still have to ask a few questions from the user's point of view.
The first is the safety and cost level, zero-run CTC technology will use a double skeleton ring beam structure. This structure can improve the overall impact resistance and torsional stiffness of the body of the new energy model, and the advantage is that the strength of the vehicle is high, and the texture of daily driving will also be improved. However, if there is a scraping or side collision of this structure, first of all, can the safety of the occupants be more guaranteed? Of course, electric vehicles using CTP large module technology will also have the same problem, the second question is if there is a collision and scratching, is the maintenance cost of small chips more expensive than CTP large module technology?
Because the battery and the chassis are integrated, if the side of the chassis needs to be sprayed after a collision, does it need to remove the battery tray and base, and can the maintenance result be guaranteed without dismantling? And has the zero-run car been specially trained for this integrated battery pack chassis structure, and can the franchised dealer store personnel be competent for future models using CTC technology?
Secondly, the airtightness of the vehicle, many new energy models that use CTP large module battery packs can support IP67 or even higher protection standards, that is to say, there is no need to worry too much about wading. However, whether models with CTC technology can also meet the protection standards of IP67 or above. Zero run official information shows that it uses a special process, and at the connection of the pallet, the combination of rivets and sealing strips is used to ensure the waterproof performance inside the battery pack. And according to CTC technology proposed a new warranty repair and return to the factory program.
Or is it a question, for the user, can the new process guarantee a high standard of protection for the vehicle? If other problems arise, does the maintenance plan consider the convenience problem from the user's point of view? Will there be other charges?
If the CTC battery chassis integration technology is indeed relatively perfect, the above problems have not appeared, then can the battery performance and life be guaranteed after many years of use? If the user chooses to replace the battery pack after the user's battery performance drops, who is more expensive to replace the battery pack with the overall replacement price of the battery pack and the CTP large module technology battery pack? Because the battery pack and the chassis are integrated, once the new battery pack is replaced, can the franchise dealer personnel ensure the performance of the chassis after the replacement? (This is similar to the first question)
Other problems are not listed one by one, I recognize the zero-run production and development concept, but in terms of personal experience, the research and development and production of battery pack technology is not something that ordinary enterprises can play, and enterprises need to have strong experience and ability in vehicle research and development, battery research and development design, BMS electronic control system research and development and other details. I personally think there is still room for improvement in the research and development capabilities of the zero-run car itself. After all, zero-run cars do not yet have the ability to produce battery packs completely independently, so the proposal of CTC technology, I personally think, is still a wait-and-see period of time for users.
Maybe the zero-running car itself also understands its own shortcomings, so at the press conference also proposed a point, will be free and open to share CTC technology, personally believe that the zero-run move is a momentum for their own brand, another point is that if more companies join in, then the zero-running car can also accelerate the development and improvement of CTC technology through synergy with other cars. It can be regarded as a practice of killing two birds with one stone.
Zero-run CTC technology will be mass-produced on the zero-run C01 sedan under the zero-run brand, and in terms of personal emotions, I hope that the zero-run C01 can be successful, after all, new energy technology is a good track for the automotive industry to overtake in curves. Not enough CTC technology for users, the current perception is not strong, and there are multiple concerns in the above, so the CTC technology proposed by zero-running cars must have a long way to go. If you can finally overcome some of the above user doubts through research, improve the user's experience and reputation, is the root of the long-term development of the enterprise.