In the era of fuel vehicles, drag coefficient is an important indicator for automobile companies and can effectively reduce fuel consumption. For every 10% reduction in the drag coefficient, fuel consumption can be saved by about 7%, which may also reflect the strength of the car company.
When Lexus LS was born, 50 experiments were conducted within three years to reduce the drag coefficient to below 0.3. Engineers and designers put in a lot of effort each time, and the final drag coefficient was 0.29. With the continuous development of automobile technology, the drag coefficient of cars is basically around 0.3, and that of SUVs is between 0.34-0.39. Moving forward is extremely difficult. For new energy vehicles, reducing the resistivity is a good way to extend battery life, so many car companies have made great efforts on the resistivity.
Among the new energy vehicles launched this year, the drag coefficient of GAC New Energy Aion S is 0.245, Geometry A is 0.237, and Tesla MODEL 3 is 0.23, both of which are very good. Among these cars, the Xpeng P7 also has the best performance. exist. From the appearance, the front face of the vehicle adopts a set of separate headlights and a gridless design, and an LED light strip with flowing lighting effect is added to the front of the vehicle. The side of the body is designed with hidden door handles and has a large tilt angle and a rearward sliding position, creating a sporty feel. Judging from the official images, the side of the body is similar to the Tesla Model S. The rear taillights at the rear of the car echo the headlights.
It is reported that Xpeng P7 will be equipped with NVIDIA DRIVE Xavier autopilot chip,equipped with LPI-level XPILOT 3.0 autopilot assistance system. The car system will be equipped with Qualcomm Snapdragon 820A processor and will Use XUI Fusion Detection to enable automotive machine systems to proactively communicate with passengers. In terms of power, the new car will be equipped with a four-wheel drive system, which can accelerate from 0-100 km/h in about 4 seconds, and has an NEDC cruising distance of more than 600 km. From the perspective of length and wheelbase, the Xpeng P7 is Tesla's Model S, but from the perspective of overall resistance, the Model S is still some distance away.
When it comes to which new car among independent brands this year has the highest expectations, I think besides the Hongqi H9, it is BYD Han. As another flagship model of BYD after Tang, Han has attracted a lot of attention since the information was exposed, and everyone is also looking forward to it. As the launch time approaches, more and more detailed information about Han, who has been half-hiding his pipa, has attracted everyone's attention.
Recently, Zhao Changjiang, general manager of BYD Auto Sales Co., Ltd., announced a lot of BYD Han EV product information on social media. The amount of information can be described as very rich.
Judging from the published information,There are three items that are very worthy of attention. First of all, the first one is Han EV’s Elk test results. As a medium to large sedan, the Han EV's Elk test score exceeded 80+km/h. This score is already extremely outstanding in the entire market and has reached the level of many supercars.
The second item is BYD Han EV’s braking. The new car’s braking distance from 100 kilometers is only 32.8 meters. BYD said that this result is currently the best in the world. Of course, we cannot verify whether it is the best in the world, but this braking performance is indeed amazing, and it is also at the level of a supercar. In addition, BYD also announced earlier that the Han EV can accelerate from 100 kilometers to 100 kilometers in only 3.9 seconds, which is also impressive.
The third item is the drag coefficient of Han EV. The drag coefficient of the new car is only 0.233cd, ranking third in the world. As we all know, the drag coefficient is related to the fuel consumption of the car, and for pure electric vehicles, it improves the cruising range. There is a saying in the industry that for every 10% reduction in the drag coefficient, for new energy vehicles, the cruising range can be increased by about 3%. .
In addition to these three points, Han EV has other highlights, such as in terms of charging speed, the cruising range is 135 kilometers after 10 minutes of charging; it can charge from 20% to 80% in 25 minutes, and the actual cruising range exceeds 600km, and its energy recovery efficiency reaches 35%, and the actual cruising range can reach 700km.
According to previous news, BYD Han EV will be put into production in June. Pre-sale of Han EV has also started. Everyone is getting closer to Han EV, and we hope that it will succeed the Hongqi brand. It has become another high-end sedan that supports the image of its own brand.
This article comes from the author of Autohome Chejiahao and does not represent the views and positions of Autohome.