TU-TESL

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"Mileage anxiety" is a barrier in the hearts of many car consumers. At present, most manufacturers try to solve this problem in two ways: to improve the endurance mileage or to increase the convenience of energy supplement. For energy supplement, in addition to BAIC and its power exchange service, self built super is the choice of more vehicle enterprises. Can this prove that the construction of super charged network will be the inevitable route for the development of pure electric vehicle energy supplement before there is no more efficient energy supplement way? Let's take three car companies, namely,,, Weilai, for example to see how they do it. In 2014, the production and sales volume of Chinese models was only 78500 / 74800. At that time, Tesla began to build a super network in the United States and proposed to introduce the charging network into China. At that time, Xiaopeng automobile and Weilai were just founded, and other enterprises have not yet been born, which is enough to see Tesla's leading pace, and no matter from the coverage of the overcharging network or from the overcharging pile technology In other words, overcharge has become one of Tesla's technical barriers. By the end of 2019, Tesla's super charging piles in China have covered more than 140 cities, and more than 2300 super charging piles have been built in total. At present, most of the domestic Tesla super charging piles are V2 charging piles with a peak charging power of 145kw. However, on December 27, 2019, Tesla has opened its first V3 super charging station in Shanghai. In January 2020, my colleagues first experienced the V3 super charging pile, and interested friends can review it step by step: "10 minute charging 42% Tesla V3 super charging pile actual measurement". Tesla's overcharge network is a solid technical barrier for the brand. Before talking about the third generation overcharge system, let's review V2 overcharge pile and see what V3 has been upgraded. Or there are difficulties in audit, hardware supporting construction and other aspects. Tesla V3 overcharge pile will not spread in China in a large scale, so V2 including "V2 upgrade" overcharge pile will also be the mainstream in China in a short time. The maximum power of V2 overcharged pile is 120kw, which is also the most familiar Tesla overcharged pile. The so-called "V2 upgrade" overcharged pile is a 150KW overcharged pile based on V2 software update, which does not need hardware upgrade, so it is relatively difficult. In the 150KW overcharge network, every two charging piles are divided into a 150KW main network, which leads to the charging piles facing diversion. My colleagues experienced the diversion situation when they experienced the overcharge pile before, so the charging power is not ideal, but there are also overseas media that have obtained good charging power. "My colleagues experienced that the 150KW overcharge pile encountered a shunt situation, and the actual power was not ideal." overseas media obtained a charging power of up to 145kw on the 150KW overcharge pile. "Unlike the V2 overcharge network, each charging pile in the V3 overcharge system can enjoy a charging power of 250KW, so there is no shunt between piles to reduce the charging power. In terms of hardware, V3 overcharge pile also adopts liquid cooling charging wire, which reduces the diameter of charging wire by about 44% compared with V2 charging pile; in addition, in terms of software, the new network system is also equipped with on route pretreatment scheme, when it judges that the vehicle is navigating to the charging station, the vehicle battery will conduct preheating treatment, so as to achieve faster charging speed when the vehicle is charging. "Colleagues have experienced V3 overcharge pile before" and "colleagues have experienced V3 overcharge pile before". What is the actual measurement result? My colleague once tested V3 charging post with Tesla long endurance all wheel drive model equipped with 75kwh battery pack. The vehicle started to charge from 3% of the electricity. When the electricity was charged to 15% and 20%, the maximum charging power - 233kw was reached. Finally, the time for the vehicle to charge from 3% to 90% of the electricity was 37 minutes and 26 seconds. Of course, 2019 models do not receive "eating speed" as high as 233kw, but at least tests prove the strength of V3 overcharged piles. Summary: considering the early launch, wide coverage and high charging power, Tesla overcharge has become a strong technical barrier for the brand. For car owners, it will also become one of the important considerations for car selection, which is difficult for other car companies to surpass. At present, Tesla is still expanding its overcharge network, which also proves that the overcharge is the inevitable route for the development of pure electric vehicles before there is no more efficient way to supplement energy. In addition to Tesla, China's car companies have gradually implemented the overcharge network. With the continuous expansion of pure electric vehicle market, as one of the first super charging stations of domestic automobile brand construction, the first super charging station of Xiaopeng automobile was officially put into operation in March 2018. At that time, the G3 of Xiaopeng automobile was not listed, so super charging became one of the ways to improve its brand power. In addition to Xiaopeng Auto's own overcharge piles, the app also has access to a number of third-party charging piles and opened up payment channels; for example, on September 26, 2019, Xiaopeng auto reached a cooperation with, and Xiaopeng auto app has access to the charging piles of special call nationwide, and opened up the payment function. On December 11, 2019, Xiaopeng auto reached a charging cooperation with NiO power. By the middle of 2019, there are more than 100000 third-party charging piles connected to Xiaopeng auto app. Up to now, there have been two types of overcharge piles in Xiaopeng automobile, but according to the official sharing, in fact, the performance of the two kinds of charging piles is almost the same (the maximum charging power is 120kw), but compared with the first (yellow) charging pile, the second (blue) charging pile is more in line with the brand design of Xiaopeng automobile, so the later investment is new charging piles. At the end of 2018, my colleagues also experienced the overcharge pile of Xiaopeng car. Interested friends can review it step by step: "open and convenient experience of Xiaopeng car overcharge station". Although Tesla overcharge pile has high power, it is not open to other brands of pure electric vehicles in order to provide a good charging experience for its owners. However, Xiaopeng automobile has been absolutely open. My colleagues have experienced the overcharge pile of Xiaopeng automobile family before, and dullele is not as good as zhonglele. In terms of the importance and openness of overcharge network, as Xiao bin, senior vice president of Xiaopeng automobile, said, "as an indispensable part of Xiaopeng automobile service and operation system, overcharge network bears the responsibility and goal of" making all new energy owners, especially Xiaopeng automobile users' travel at ease without anxiety. " Xiaopeng automobile overcharge station adopts 180kW double gun DC fast charging pile, with flexible current distribution. The maximum power of single gun is 120kw, and the average power is 90kw. Although this value is not high, 90kw is enough to "feed" most of the domestic pure electric vehicles. At the same time, in terms of compatibility, the brand's overcharge pile can be adapted to all new energy vehicles with DC fast charging function and in line with the national standard charging interface. In Xiaopeng automobile overcharge station, we can also see pure electric vehicles of brands such as automobile, new energy, Weima automobile for charging, with favorable opening performance. The G3 and P7 models of Xiaopeng automobile have always emphasized "intelligence", which is no exception in the brand's overcharge pile. The official has repeatedly stressed the word "intelligence", such as users can find piles intelligently through the charging map app, reserve charging, intelligent unlocking, etc. Meanwhile, the overcharge station of Xiaopeng automobile also covers WiFi. "My colleagues used Weima Ex5 to experience the actual charging power of Xiaopeng car". My colleagues used Weima Ex5 to experience the charging power of Xiaopeng car at the end of 2018. The charging power of Ex5 starts from 42% of the electricity. When the electricity is less than 70%, the charging power is maintained at 47.8kw left and right. It should be noted that there are many vehicles in the charging station on the same day, so there is a certain shunt situation, and According to different models, the allowable maximum charging power is also different, so 47.8kw cannot represent the maximum power. Compared with Tesla overcharge pile, the power performance of Xiaopeng automobile overcharge pile is indeed average, but after all, there are not many models that can accept hundreds of kilowatts of charging power, so it can not be said that it is poor, coupled with its openness, I think the brand's overcharge pile is still worthy of affirmation. However, unlike Tesla, its overcharge has become one of the technical barriers of the brand, but Xiaopeng auto overcharge is far from so powerful. At present, it is only one of the ways to enhance its brand power, hoping that Xiaopeng auto can continue to develop its overcharge network and form its absolute advantage. It is also an outstanding brand of new power, and Wei Lai also has its own super charging pile. At the same time, it is also the new energy brand with the most energy replenishing methods in China. Different from Tesla's and Xiaopeng's thinking, Yulai took the lead in launching power station replacement, mobile charging car and slow charging pile. In July 2019, the first super charging station of Yulai was officially put into trial operation. According to the conventional thinking, the charging power of the overcharge pile should be more and more developed, but it seems that ulsian does not always pursue high power, and its maximum charging power of the overcharge pile is only 105kW; from the numerical point of view, it seems to have lost in the starting line, but how about the actual charging experience? Interested friends can move to this experience draft: "just born behind?"? Try to use 105kW overcharged pile. In addition to Xiaopeng automobile, as a supplement to the energy supply system, Weilai, which already has the energy supplement system such as power station replacement and mobile charging vehicle, has also set up its own overcharge network in 2019, and like the overcharge network of Xiaopeng automobile, Weilai overcharge is also open to all new energy source vehicles. Let's not talk about the technical level first, the design of Weilai super filling pile is really a bit off center. The bright silver decorative shell and light blue flow light belt are the design from slow filling pile and home filling pile to super filling pile, which is also a family style feature. In addition, the thin pile is also one of its features. After watching the super filling pile of Tesla and Xiaopeng cars, we can see the products of Weilai. The latter is indeed true It's delicate. In terms of power, at present, Weilai overcharge adopts the configuration of 210Kw main engine with one trailer and four overcharge piles. Four overcharge piles are divided into two groups, so each group can share 105kW charging power, that is, the maximum power of a single gun is limited to 105kW. In addition, 105kW is dynamically distributed to two piles according to the charging sequence, electric quantity and other factors of two piles and two vehicles. We also learned from the official of Weilai that the 210Kw host is to ensure the power utilization rate. According to the actual operation, the 210Kw host can be upgraded to 270kw at any time to meet the stronger charging demand. 105kW is dynamically allocated to two overcharged piles, which seems to be very common. The data is worse than that of Xiaopeng automobile, but the actual experience is surprising. My colleagues used the 70kwh version of es8 to experience the ultra charging of Weilai. The charging power of the vehicle is maintained at 80kW + from 0% of the electric power to 50% of the electric power. The peak charging power reaches 88.67kw, which is quite impressive. On the same day, the same vehicle only gets 57kw peak charging power on the 120kw national grid charging pile. Summary: Tesla overcharge is a technical barrier, Xiaopeng auto overcharge is a way to improve the brand power, while Weilai overcharge is a supplement to the brand's energy supplement, but in general, it is all to improve the brand power. Although the three overcharges are in different positions, they have the same thinking, that is, to develop overcharges is essential. Take the example of Weilai overcharge pile and Xiaopeng automobile overcharge pile. Although the peak power of the former is low, we can see a higher actual charging power during the test. In fact, the actual charging power of the vehicle is largely related to the vehicle, not only determined by the charging pile, so we will see that different vehicles will get different peak charging power on the same charging pile. order