If you have been following recent news about new energy vehicles, you must have heard of a Yangwang car. It can not only make a U-turn in place, but also drive in water. Yangwang, as a high-end car brand under BYD, runs through the core of one word – technology. Recently, Yangwang brand unveiled the Yi Sifang technology platform,also known as “e4“. On this platform, they constructed their first mass-produced vehicle, named Yangwang U8. This car demonstrates the ultimate safety performance of the Yi Sifang technology platform in extreme off-road scenarios. If you haven’t heard of it, it’s okay. Today, follow this article to delve deeper into this technology.
Safety is the most important technical issue that the development of automotive technology must face. Yangwang’s ultimate technological dream is also to provide users with extremely safe cars through technological innovation.
Introducing the “Yi Sifang” technology, China’s pioneering mass-produced four-motor drive system. Renowned as the “golden key,” this innovative technology offers users unparalleled safety. It is driven independently by four motors as its core, breaking the imagination of traditional cars. By leveraging groundbreaking innovations in perception, decision-making, and control, the “Yi Sifang” technology achieves remarkable capabilities. It independently controls four motors, ensuring extreme anti-skid measures and maintaining exceptional vehicle stability control.
Yi Sifang Technology: Bottom Logic and Innovation
The stability control of traditional fuel vehicles is constrained by the technological limitations of their era. As a result, there exists a notable disparity between their perceived speed and accuracy in achieving ultimate safety. On the perception level, this technology achieves innovation over traditional technology through the powerful perception ability of wheel edge motors. By integrating diverse intelligent driving sensor data, including cameras, LiDAR, and millimeter wave radar, we can attain seamless and comprehensive perception of the vehicle’s motion status.
In the control phase, the Yi Sifang technology platform stands out due to its sophisticated design. Specifically, it is equipped with an advanced electronic and electrical architecture. Furthermore, this architecture collaborates seamlessly with the central computing platform and domain controller. The central controller and various domain controllers interact efficiently. They communicate real-time perception information and control strategies. This occurs through a vehicle Ethernet that offers high bandwidth, low latency, and high security. All models come standard with the all-new SIC platform, with a maximum efficiency of 99.5%. High computing power and control speed, achieving a 50% increase in current output capability. During the driving process of a car, various perception signals are integrated. These multimodal signals are used to analyze road conditions and requirements. As a result, precise control of the vehicle’s four-wheel dynamics is achieved.
In terms of decision-making, the four-wheel motors operate independently. They receive signal data from the central processing unit and execute tasks swiftly. Furthermore, they can adjust the dynamics of the vehicle’s four wheels at millisecond speeds. This results in better control over the body posture. This can significantly reduce the risk of vehicle loss of control due to insufficient grip in emergency situations.
Implementation and Ultimate Experience ofYI Sifang Technology
Ultimate horsepower
The core of Yi Sifang’s technology lies in its four motors. Each motor boasts a peak power of 220-240kW and a peak torque of 230-420N · m, enabling a 3-second 0-100km acceleration. Introducing the Yangwang U8, it is the first vehicle to be equipped with Yi Sifang motors. This car can output an impressive 1100 horsepower, with a wheel-end torque exceeding 17000N · m. As a result, it accelerates from 0 to 100 kilometers per hour in just 3.6 seconds.Field tests further demonstrate the vehicle’s capabilities. Even with five adults on board, weighing nearly 3.9 tons, the Yangwang U8 accelerates from 0 to 100 kilometers per hour in only 3.9 seconds.
Turn around in place
The Yi Sifang electric drive assembly consists of two main parts: a front dual motor assembly and a rear dual motor assembly. Each of these assemblies is further divided into two motors, one on the left and one on the right.Innovatively, Yi Sifang combines intelligent perception technology with tire control algorithms. This combination allows for precise control of instantaneous forces between the tires and the ground. By applying driving torque in different directions to the left and right wheels, the tires can overcome the limitations of ground friction. As a result, they rotate around the vehicle’s center of mass.
Smooth driving
The Yi Sifang technology platform excels in perception, control, and execution efficiency. This enables vehicles to address a significant safety risk associated with traditional cars. Specifically, it helps to mitigate the danger of high-speed tire blowouts. Just like driving on icy and snowy roads, a tire blowout can cause the vehicle’s driving dynamics to lose balance.If a vehicle experiences a tire blowout at a maximum speed of 120km/h, the four motors act swiftly. They continuously adjust the torque of all four wheels at a very high frequency. This ensures that the remaining driving wheels maintain grip on the road. Control the body posture to avoid losing control, and make the vehicle with a single tire blowout stop stably and controllably, minimizing the occurrence of secondary accidents.
Calmly wade through water
The Yi Sifang technology platform enhances vehicle safety capabilities in multiple ways. Firstly, it improves the performance of the power system. Additionally, it integrates with the vehicle’s protective capabilities. When we consider the Yi Sifang technology platform installed on the U8, several notable features emerge. Firstly, its core component protection capability has reached the IP68 level. Additionally, it features an emergency floating function. This function ensures that the vehicle’s core components do not enter water and malfunction during floating, thereby aiding in escaping trouble swiftly. In typhoon, heavy rainstorm and other weather conditions that easily lead to urban waterlogging, users can safely pass through urban wading sections. Distributed four-wheel independent torque control completely decouples the four wheels, and the torque output can be positive or negative, greatly improving the range of control and regulation capabilities. Even when wading through water, one can handle it calmly.
Ultimate safety is the most core value that the Yi Sifang technology platform brings to users. It gives vehicles four agile and strong legs like cheetahs, improving their stability in various road conditions and allowing users to immerse themselves in the joy of driving and exploring. You can click here to watch the wonderful moments of Yangwang U8.
Contact us for more consultation about Yi Sifang Technology
After reading this article, I believe you have gained a deeper understanding and shock of Yi Sifang Technology and Yangwang U8. If you want to learn more about Yangwang technology or are interested in other car models, please feel free to contact us. I believe we can provide you with a satisfactory answer.
