Earlier, Guangzhou Automobile held the 2024 Guangzhou Automobile Science and Technology Day, and released the unmanned pure visual intelligent driving system and the large-capacity all-solid-state power battery, both of which are the leading technologies in China.
No-graph pure vision intelligent driving system
We all know that most of the intelligent driving systems on the market at present are based on high-precision maps, but one problem with high-precision maps is that they are slow to update and have poor adaptability to complex road conditions such as sudden road repairs.
The intelligent driving system without map and pure vision is like giving a car "eyes", completely getting rid of the dependence on high-precision maps and perceiving the world like a human being. There is no complicated lidar, and a more concise and low-cost hardware system is used to realize a wider range of intelligent driving experience. At the same time, the intelligent driving system without map and pure vision also has the ability of continuous improvement and self-improvement and progress.
However, in my opinion, there are still limitations in the unmanned pure vision intelligent driving system. For example, in a thunderstorm with low visibility, or in the face of such an emergency as a "ghost probe", the pure vision scheme has the same visual blind spot as the human eye. Therefore, I personally guess that in the future, "multi-sensor fusion technology" and "map-free pure vision technology" will coexist, and they will not replace each other.
The unmanned pure vision intelligent driving system will be installed on the family car at a lower cost, so that the users of the family car can also have high-level intelligent driving, while the high-end models are still lidar+vision solutions. This technology will be officially loaded in 2026.
Large-capacity all-solid-state power battery
In addition to the unmanned visual intelligent driving system, another black technology is all-solid-state power battery. At present, the expected loading time of all-solid-state power battery in the industry is in 2030, and GAC announced that they plan to complete the loading of all-solid-state power battery in 2026, which is much faster than the industry standard.
So what are the advantages of all-solid-state power batteries? Its biggest advantage is that it increases the energy density of the battery and reduces the risk of spontaneous combustion.
According to the official information, the negative electrode adopts the third generation sponge silicon negative plate technology, that is, the "silicon" material, while the positive electrode adopts the solid-state positive electrode technology with high surface capacity, but the electrolyte that everyone is very concerned about has not been announced.
The overall energy density can reach more than 400Wh/kg, which is not particularly high. After all, Contemporary Amperex Technology Co., Limited has released a battery with a single energy density as high as 500Wh/kg before. Personally, it is expected that GAC will deliberately reduce the energy density for safety reasons.
According to the official data, the all-solid-state power battery of GAC does not explode in the hot box test at 200°C, and can maintain stable performance under extreme conditions such as-78°C dry ice and 90°C high temperature.
The announcement of these two technologies represents that GAC is continuing to deepen their technical strategy and demonstrates the strong R&D and innovation capabilities of GAC Group. However, the actual performance will not be known until the actual loading has been tried.
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