BYD 2024 Dream Day new technology
Yi Sifang technology platform
At the 2024 Dream Day, BYD unveiled the Yi Sifang Technology Platform, a comprehensive solution that integrates several innovative technologies. The core components of the Yi Sifang platform include the front and rear dual-motor assembly, the central computing platform and the CTC blade battery.
The front and rear dual-motor assembly is the power core of the Yi Sifang platform. By mounting the motors separately on the front and rear axles, more efficient power transmission and better handling performance can be achieved. Compared to traditional single-motor systems, dual-motor systems provide greater torque output, resulting in improved acceleration performance; At the same time, it can also achieve more accurate torque vectoring control and improve the handling stability of the vehicle in special road conditions such as corners.
The central computing platform is the "brain" of the Yi Sifang platform. It integrates advanced chips and algorithms to efficiently process massive amounts of information from on-board sensors and external data sources, real-time vehicle status and road condition information, and intelligently adjust the powertrain, braking system, etc., to achieve optimal energy utilization and driving experience.
The CTC blade battery is the "heart" of the Yi Sifang platform. This newly designed battery cell features a blade-like structure that significantly increases energy density per unit volume, resulting in a larger range for the same pack size. CTC batteries also have excellent fast charging performance and thermal management capabilities, which can greatly reduce the charging time and effectively extend the battery life.
The organic combination of the above-mentioned core components of the Yi Sifang technology platform will bring excellent overall performance to BYD's new energy vehicles.
Dual-gun overcharging technology
In the field of charging, BYD has also launched an innovative technology - dual-gun supercharging. This technology can make use of the existing resources of public fast charging piles to achieve high-power charging and greatly reduce the charging time.
The traditional fast charging method usually uses a single charging cable design, and the charging power is usually between 60-120kW. The dual-gun supercharging technology is equipped with a charging gun on each side of the vehicle, and the two charging guns can work at the same time, increasing the charging power to 180-240kW.
Such a high charging power can make a pure electric vehicle with a range of 600km charge from 20% to 80% in 15 minutes, which greatly alleviates the problem of "range anxiety" of electric vehicles. Dual-gun overcharging technology can also effectively reduce the construction cost of charging facilities. Due to the use of existing public charging pile resources, there is no need to rebuild a high-power charging station, and only a charging gun needs to be added to the charging pile to achieve the overcharging function.
Such high-power charging also places higher demands on the battery system. Fortunately, BYD's CTC blade battery is precisely tailored to meet this challenge. It adopts a new thermal management system design to efficiently dissipate heat during overcharging, ensuring that the battery is safe and reliable.
Cloud Preview System
In addition to innovations in the field of power and charging, BYD has also made breakthroughs in the intelligent driving experience. On the Dream Day, BYD launched the Cloud Wheel Preview System, which is an intelligent driving assistance system based on cloud big data.
The cloud preview system integrates a high-precision on-board sensor array to obtain real-time information about the road conditions around the vehicle, including road texture, slope, curvature, etc. This information will be uploaded to the cloud and compared with the massive historical road condition big data aggregated by BYD, so as to accurately predict future road conditions and optimize the power output and braking strength of the vehicle in advance.
Through this innovative technology, BYD new energy vehicles can "see through" the road in advance and react in advance during driving, so as to achieve a smoother, more energy-efficient and safer driving experience. For example, in the downhill section, the cloud chariot system can increase the braking force in advance to avoid the speed of the vehicle from getting out of control; On rough roads, the power output can be reduced and the damping can be increased in advance to eliminate bumps; In tight curves, active steering assistance can also be used to improve driving stability.
In addition to optimizing the driving experience, the cloud preview system can also provide accurate road condition information for the autonomous driving system, thereby improving the safety and reliability of autonomous driving. In the future, BYD Auto will be able to achieve truly safe, efficient and intelligent autonomous driving.
The current state of mobile phone chips and batteries
In BYD, there are also some rumors about 3mm chips and nuclear battery phones circulating online when BYD launched many of the above innovative technologies. After searching and verifying on the whole network, these rumors are obviously inconsistent with the facts.
At present, the most advanced mobile phone chip manufacturing process is TSMC's 3nm process, with a chip size of about 3mm x 3mm. 3mm refers to the code name of the manufacturing process, not the actual size of the chip. In the future, the chip size will be further reduced, but it is difficult to achieve the size level of 3mm.
At present, mobile phone batteries mainly use lithium-ion batteries, and do not use nuclear batteries. Although lithium batteries have problems such as heat generation, there are already a variety of solutions, such as liquid cooling and heat dissipation. Although the energy density of nuclear batteries is higher, the safety and reliability cannot meet the requirements of mobile phones.
The rumors about the 3mm chip and the nuclear battery of the phone are clearly not true. We should believe that the development of science and technology is gradual, and any breakthrough new technology needs to be tested by long-term theoretical research and engineering practice, and cannot be achieved overnight.
Through the above introduction, we can see that BYD's innovative technologies such as the Yi Sifang technology platform, dual-gun supercharging technology and cloud pre-sight system launched at the 2024 Dream Day all reflect BYD's unremitting pursuit in the field of new energy vehicles. The launch of these technologies will surely bring excellent overall performance to BYD's new energy vehicles and improve the driving experience of users.