NEDC, the latest model of Xpeng Motors P7, has a battery life of 76 kilometers.

Let's draw a conclusion first. If P7 is expected to be recharged once in daily use, the friend who really ran 76 kilometers can be disappointed. Big Bun Beaver can definitely say that the following analysis is only personal opinion. Welcome to discuss. Don't spray if you don't like it. Thank you. ? On the night of March 6th, the Ministry of Industry and Information Technology released new filing data, among which NEDC, the latest model of Tucki P7, has a cruising range of 76 kilometers. At present, this is a fairly long cruising range, exceeding the NEDC mileage of all electric vehicles in the electric vehicle market.

shortly after the Ministry of Industry and Information Technology put it on record and released it, Xpeng Motors officially announced that NEDC endurance of Tucki P7 was the first in China and even in the world, which fulfilled Xpeng Motors's promise of "a new benchmark for endurance" on the pre-sale slogan.

it didn't take long for the news to get out, which caused a heated discussion in the car circle. Some well-known car bloggers expressed doubts about the endurance, especially on the same day, when the NEDC value of Tesla Soybeans made in China for the record by the Ministry of Industry and Information Technology was 668km, and its weight, size and wind resistance were significantly lower than those of Tucki P7, P7 ushered in the first wave of false label warning.

first of all, I want to say that there are obvious problems in the calculation of this very well-known car blogger. His calculation method is battery capacity/energy consumption of the Ministry of Industry and Information Technology, that is, 8.87/12.5=646.96. So he thinks the ultimate endurance is a little more than 64. We can calculate several other cars according to his method. The battery capacity of Ai 'an LX is 93 degrees, and the energy consumption of the Ministry of Industry and Information Technology is 15.8,93/15.8 = 588, so the ultimate endurance of Ai 'an LX is 588, and the 65 announced by the Ministry of Industry and Information Technology is suspected of being false. The battery capacity of Geometry A is 61.9, and the energy consumption of the Ministry of Industry and Information Technology is 13.5,61.9/13.5=458. The 5-year battery life of the Ministry of Industry and Information Technology is suspected of being empty. According to this method, the energy consumption of a car can be calculated by the Ministry of Industry and Information Technology. In fact, in reality, the battery capacity/energy consumption of the Ministry of Industry and Information Technology is not directly used to calculate the vehicle's battery life. As a senior well-known automobile media evaluator, I should not be unaware of this. Yesterday, I estimated that I was in a hurry and made a mistake in my busy schedule. ? However, there is a saying in Weibo that is quite right. Why is edamame III smaller than p7, lighter in weight and lower in wind resistance? Why is the power consumption smaller than edamame III? The 8-degree battery runs 79 kilometers, which sounds really incredible for a car close to 2 tons, so I decided to make a serious analysis myself.

firstly, we calculate the arithmetical simple value of energy consumption per 1 kilometers, that is, battery capacity/battery life = arithmetical simple value. The significance of simple value is to analyze the statistical power consumption per 1 kilometers by dividing the total battery capacity and the total mileage of NEDC, so that the power consumption of different models can be compared. For example, car A runs 1 kilometers at 1 degrees, car B runs 7 kilometers at 8 degrees, and car C runs 13 kilometers at 9 degrees. If the weight and wind resistance of the three cars are similar, it is obvious that the energy consumption of car C needs further confirmation. The following table is obtained after calculation:

From the simple value, we can see that the simple value energy consumption of P7 is higher than that of edamame III. Personally, this is due to the lower vehicle weight and higher motor efficiency of edamame III. The advantage of P7 in energy consumption mainly lies in the higher energy density of the battery, and the battery with the same weight can have more energy. So such simple value data seems acceptable. It can be further verified that the drag coefficient of Geometry A is basically the same as that of P7. However, due to its distributed electric drive design, the power consumption is delayed. If Geometry A improves the electric drive layout, it is believed that the energy consumption can be improved to the level close to or even beyond P7. The weight and size of Qin 6 and edamame are basically the same, and the energy consumption is mainly dragged down by battery capacity, wind resistance and energy density. If the wind resistance is reduced by .1, the battery life can be increased by 2-25 kilometers. If the wind resistance of Qin 6 is as low as 2.3, the battery life can be increased to 56, and the battery life can be increased to 75, and the battery life can be further increased to 6. If the motor efficiency and energy consumption are further improved, it is believed that the battery life can be close to M3. Through the above analysis, we can see that this group of arithmetical simple values is basically at a credible level, and there is no individual data and its outrageous situation. ? Secondly, let's consider the approximate endurance performance of each car after the battery capacity is unified within this framework. I must admit that this is a very unscientific analysis method, because the increase of battery pack capacity will cause changes in many places of the whole car. This comparison is mainly to unify one dimension and make a simple comparison to see if there is any particularly unreasonable situation. ? Starting from edamame III, if the battery capacity of edamame III is increased by 6 degrees, the vehicle weight will be increased by 4 kilograms. Because the vehicle weight of 4 kilograms will not affect the energy consumption too much, if the simple value is fixed, the NEDC battery life of edamame III may reach 721 kilometers, which is completely in line with the result that edamame III motor has higher efficiency and lower wind resistance.

Then there is Geometry A. If the Geometry A battery is increased to 81, the weight will increase by 16kg, which will have a slight impact on energy consumption. Therefore, if the simple value is increased by .3 compared with the original value, the NEDC battery life of Geometry A may reach 64km. This battery life data basically conforms to the three-in-one of Geometry A distributed electric drive and P7, as well as the difference between motor power. That is to say, if the Geometry A with 8-degree electricity can be changed into three-in-one, it is believed that the battery life can be compared with the battery life.

finally, look at Qin 6. If the power is increased to 81, the weight will increase by 69 kg, which is believed to have little impact on energy consumption, so the simple value is basically unchanged, and the NEDC endurance of Qin 6 or 68 kilometers will be calculated. This data takes into account the difference between wind resistance and motor efficiency. If Qin is fully promoted, the energy consumption will reach about 7, but there is a slight gap. Personally, BYD's three-point strategy is more suitable.

based on the above viewpoints, I think that through multi-dimensional analysis, there is no sign of serious distortion in P7 energy consumption data, and I don't think there is any possibility of serious false standard in P7. So how did P7 improve from 65 to 76? I think it may be due to the low wind resistance kit. The news from multiple sources indicates that P7 will be equipped with low wind resistance wheels or other kits, according to Prolifk (one? YouTube? Video producer? The test results in the United States with edamame III show that non-aerodynamic wheels, Tesla? Model? 3? What is the power consumption of? 282? Watt-hour/mile time covers the distance, and when using aerodynamic wheels, what is the power consumption? 27? Watt-hour/mile, the difference between them is about 4.26%. According to this ratio, the battery life of the P7 will probably increase from 658 to about 69. Coupled with the optimization of software system and tires, there is reason to believe that NEDC can reach 76 kilometers.

However, I would also like to remind you to seriously consider the difference between daily scenarios and test conditions, because P7 has taken various measures to reduce energy consumption, so the equipment power consumption of vehicles will increase the impact on vehicle energy consumption. For example, the power of air conditioner+stereo is 3kW per hour, which may cause P7 to lose 3km extra power consumption when turning on air conditioner+stereo. Considering the power consumption of cooling/heating of liquid cooling device in summer/winter, the additional power consumption may reach 4 km/h. Such energy consumption loss data may have a greater psychological impact on drivers. For example, a car with a battery life of 3 miles actually runs 22 kilometers and a car with a battery life of 7 miles runs 5 kilometers, but the same 3% discount brings different psychological implications to drivers. Because the total amount has increased, the former driver will feel that the consumption of 8 kilometers is acceptable, but the latter driver will feel that the loss of energy consumption of 2 kilometers will be very different. Especially in the case of low-speed traffic jams in cities, the car will block the road section 3 kilometers ahead and lose 6+ endurance, which will seriously affect the driver's experience. I believe Tucki will continue to take further optimization measures for these situations. ? In any case, the appearance of P7 has promoted the endurance and intelligence of domestic electric vehicles to a new level. Let's look forward to the future. ? Finally, I'm sorry LX, I've always forgotten your existence. Fortunately, you are an SUV. Maybe next time. I must thank the leader for washing strawberries for me.