News on March 21, BYD’s high-end brand Yangwang Auto officially answered the questions that netizens were concerned about today, involving the principle of turning around in place and whether the U8 can be used as a boat to drive and other .
When talking about how to make a U8 turn in place, looking up at the car said that the most direct and effective way to achieve a U-turn is to turn the left and right wheels in the opposite direction . This requires the vehicle to have the ability to independently control the torque of the four wheels, so that the wheels can turn both forward and reverse; At the same time, the wheel torque and power must be large enough to allow the wheel to break through the ground adhesion limit. Yi Sifang’s four-wheel independent control and super power naturally have this ability. At the same time, in order to make the in-place U-turn can be used in more road conditions, Yi Sifang provides precise torque control capabilities, allowing the vehicle to customize the steering angle and speed, which expands more use scenarios for the in-place U-turn function of looking up at the U8.
In addition, the official said that ordinary tires can also achieve a U-turn in place, and the realization of the in-place U-turn function is not directly related to the tire model. Because Yi Sifang can adjust the power of the four wheels from the main through the perception of the wheel rotation state, so as to ensure the normal operation of the in-place U-turn function, its power is also enough to break through the extreme grip of most civilian car tires, so as to ensure that under a variety of road conditions, any civilian tire can achieve a U-turn in place.
In view of the problem of tire wear when turning around in place, the official of the car said that Yi Sifang has millisecond-level road surface perception and the ability to accurately control torque output. When making a U-turn in place, Yi Sifang can quickly sense the road adhesion and tire grip, and accurately calculate the minimum torque demand to make the vehicle turn in place, so that on sand, snow, asphalt roads, concrete roads, can enable the vehicle to achieve a U-turn on the basis of minimizing tire wear.
“Yi Sifang” technology is the first mass-produced four-motor drive technology in China, which can achieve precise control on the four-wheel dynamics of vehicles with four-motor independent vector control technology. IT House has reported that the maximum speed of the “Yi Sifang” platform has reached 20500rpm, and the horsepower of the whole vehicle exceeds 1100 horsepower.
It is worth mentioning that Yangwang Auto talked about whether Yangwang U8 can be used as a boat, saying that Yangwang developed the emergency floating water function to achieve emergency distress and escape , including wild wading in distress and urban waterlogging disasters. This is a passive safety function similar to an “airbag”, rather than an “entertainment” function that is actively turned on. Although the U8 has the ability to float for a short time, the car that can “paddle” is essentially a car, not a boat. No user is encouraged to try this feature in non-emergency situations.
