In Changsha last year, 330000 new cars were licensed and 200000 new energy vehicles were owned. Is this achievement arrogant enough? However, the new energy vehicles that have made great strides into citizens’ families have encountered a severe test during the Spring Festival this year. The freezing cold brought by the heavy snow has become a challenge that new energy vehicles must face.
Many people choose to drive when they go home for the Spring Festival. How are new energy vehicles doing? In the hearts of consumers preparing to buy and change cars, are new energy vehicles still so fragrant in the face of the test of ice and snow? What do we need to do to make new energy vehicles run happier and farther? Recently, the reporter conducted an interview on this.
owner’s feeling: smart and save money, but charging can’t get around
After several months of investigation, Ms. Huang, who works in a public institution in Changsha, finally made up her mind to replace the original gasoline vehicle with a new energy vehicle – a fashionable and beautiful Xiaopeng P7. After three months of use, she gave a big praise for her choice.
What makes Ms. Huang feel easy to use is the smart device of Xiaopeng P7. “For example, I don’t want to drive in winter like sitting in an ice cellar, so I will use my mobile phone for remote control before starting every time and let the warm air conditioner blow up first.” This is just a small highlight of this new energy vehicle in the application of intelligent devices.
The screenshot of Ms. Huang’s mobile phone showed to reporters that it can not only carry out routine operations such as car locking, unlocking, Bluetooth key start and window lifting through her mobile phone, but also find fresh practical functions such as vehicle and sentry mode. For example, after starting the vehicle search function, you can roughly know the location of the vehicle. If you are in a large parking lot, you can also help the owner find a car by making the vehicle whistle and flash lights.
Sentry model monitors the surrounding environment through the camera equipped with the vehicle. If the vehicle is scratched or encounters illegal intrusion, it will immediately send an alarm and send relevant messages to the owner’s mobile phone.
“Of course, the happiest thing is the low cost. If you charge at home, it’s 50 cents once. Charging outside is a little more expensive, but it’s much cheaper than burning oil.” Ms. Huang said.
Mr. Luo, who works in government departments, also drives new energy vehicles. In an interview with reporters, he also holds a positive attitude towards his car. The only thing that makes him feel inconvenient is that new energy vehicles can’t run too far.
“During the Spring Festival, I drove an electric car for a long distance at high speed. My experience is that at present, charging piles have been basically set up in high-speed service areas, but the number is not enough, so I need to queue up in case of holidays; there are public charging piles in cities above the county level, so charging is still not a problem. The larger the city, the more charging piles.” Mr. Luo believes that at present, the single endurance of slightly better new energy vehicles is about 400 kilometers. When running at high speed in the province, there is basically no need to charge, and you can charge at the destination; If you want to charge halfway, you can get off the highway and charge nearby to the urban area. “Now new energy vehicles are very intelligent. Before you start, the car will give you a set of charging plan. It’s clear where there are charging stations, how many piles and how many vacant spaces. But driving new energy vehicles out of the province is a bit risky. Generally speaking, the number of charging piles in high-speed service areas will increase, and the charging piles in urban areas are basically enough.”
According to Mr. Luo’s experience, the official mileage of his electric vehicle is 670 kilometers. In fact, it is only more than 400 kilometers in summer and only more than 200 kilometers in winter.
car dealer’s point of view: if we don’t pay close attention to the construction of charging piles, we will fall behind
Obviously, in addition to the lack of endurance, new energy vehicles are perfect. So, in the eyes of auto dealers, what is the current situation and Prospect of new energy vehicles in Changsha? What efforts should government departments and all sectors of society make to continue to develop new energy vehicles?
As the automobile dealer with the largest number of automobile 4S stores in Hunan, Tang Guohua, chairman of Hunan Lantian group, firmly said: “new energy vehicles are unstoppable, especially the blowout outbreak in the fourth quarter of last year. We expect the sales of new energy vehicles nationwide to reach 15% to 20% this year, with a corresponding number of about 5 million units. Moreover, such growth is likely to accelerate.”
Tang Guohua introduced that Hunan Lantian is very optimistic about the new energy vehicle market. At present, Hunan Lantian is transforming its best store as a model 4S store of GAC motor’s new energy vehicles, which is expected to open in April. Meanwhile, Hunan Lantian has obtained the authorization of Hunan general agent of Geely’s smart new energy vehicle brand. In terms of sales, FAW Volkswagen, Shanghai Volkswagen and Dongfeng Nissan Qichen stores under Hunan Lantian sell traditional gasoline, diesel and new energy vehicles. Among them, FAW Volkswagen store sold 750 new energy vehicles last year and Shanghai Volkswagen store sold 500 new energy vehicles, accounting for more than one seventh. The sales volume of new energy vehicles in Dongfeng Nissan Qichen store accounts for as much as one third.
As for the charging problem that restricts the development of new energy vehicles, Tang Guohua said that as a member of the CPPCC Hunan Provincial Committee, he has shouted loudly during the “two sessions” of Hunan Province for two consecutive years: the local government should guide the design and approval of real estate projects, coordinate the power sector and real estate developers, and build charging piles in each parking space of the underground parking lot, At the same time, large-scale charging piles are added in large supermarkets and public parking lots. “If we don’t put it into practice, we will really fall behind in the new energy vehicle industry.”
In addition to stepping up the construction of charging piles, “power exchange” is also a solution. This mode is represented by Weilai automobile, that is, when the battery is about to be discharged, take out the primary battery and replace it with a fully charged battery. Hu Liuquan, the chairman of Hunan Changyuan Lico Co.Ltd(688779) which is a local listed company and provides products and services for Contemporary Amperex Technology Co.Limited(300750) and Weilai automobile, and song Lianghong, the after-sales director of baozhijie famous car, all believe that “power exchange” is an effective transition scheme on the premise that the battery technology has not achieved a qualitative breakthrough at this stage. Song Lianghong further said that government departments should guide the formulation of “power exchange” standards as soon as possible.
It is precisely because they are still worried about the inconvenience of charging on highways and more remote areas. Nine out of ten car owners interviewed by the reporter did not choose to drive new energy vehicles across provinces during the Spring Festival this year.
industry planning: Changsha is expected to build 20000 public charging piles by the end of the year
How is the construction of charging piles in Changsha progressing now?
The reporter learned from Changsha Development and Reform Commission that at present, the provincial and municipal governments strongly encourage the construction of charging piles, the construction of public charging infrastructure and private charging piles have made great progress, and the construction of charging piles in Changsha is in the leading position in the province. In the implementation opinions of the general office of Hunan Provincial People’s Government on accelerating the construction of electric vehicle charging (replacement) infrastructure, it is clearly proposed to promote the construction of charging facilities in residential areas and along the highway.
According to the plan, by the end of 2022, Changsha is expected to build 20000 public charging piles; In 2025, 36000 public charging piles will be built. It is reported that Hunan Province has developed a public charging infrastructure management service platform. As long as you download Xiaoxiang e-bank app, you can find the surrounding charging piles online and in real time, and select the most economical and suitable charging pile to charge your car. Obviously, such a plan is good news for Changsha, a popular online tourism city. With the continuous expansion of this track, more and more state-owned enterprises and private capital will join in to escort the travel of new energy vehicles in Changsha.
Of course, while the government strongly encourages and promotes the construction of charging columns, we are also looking forward to further breakthroughs in new energy vehicle technology. It is only by the continuous innovation of energy that the traditional automobile will run further, and the new technology will eventually replace the traditional automobile.
[question and answer link]
Q: why is the real mileage of new energy vehicles lower than the nominal mileage?
A: there are many factors that affect the mileage of new energy vehicles, such as temperature, road conditions, driving habits, vehicle load, etc. At present, the mileage is generally tested by NEDC, wltc and other working conditions, but these test conditions are very different from the conditions of daily vehicles. First of all, China’s range is calibrated according to NEDC, and all other loads (air conditioning, headlights, heated seats, etc.) will be turned off during the test, which is different from the actual situation; Secondly, NEDC test does not consider driving habits, and its simulated acceleration and overtaking are relatively linear and too idealized; In addition, the simulation of braking and deceleration under NEDC working condition is not intuitive enough, and the distance is too long, resulting in less battery power loss than the actual situation.
Q: why do gasoline and diesel vehicles run at high speed and save fuel, while electric vehicles run at high speed and consume more electricity?
A: electric vehicles discharge continuously with high current when running at high speed. Compared with small current (at low speed), the heat of the battery is greater. These heat will lose the power of the battery. If overheated, it will also lead to the start of the battery cold zone system, which will also consume the power of the battery; When the fuel truck runs at high speed, the fuel burns more fully and saves fuel at relatively low speed. In addition, the wind resistance of the car becomes larger at high speed, and the power consumption of the electric car will be more, which is also related to the shape design of the car.
Q: why is the real mileage of electric vehicles with hot air conditioning in winter shorter than that with cold air conditioning in summer?
A: the biggest difference between summer and winter lies in the ambient temperature. For the battery, the ambient temperature has a great impact on its power. The higher the temperature, the higher the power it can use, the longer the driving mileage of the same electric vehicle, and the lower the temperature, the greater the internal resistance of the battery, the greater the battery power loss, and the shorter the driving mileage of the same electric vehicle. In winter or summer, the temperature can be adjusted by air conditioning to make the battery operate at normal temperature, which will lose part of the power and shorten the real mileage; Assuming that the power consumption of air conditioning in summer is the same as that in winter, the initial available power of the battery in winter is lower than that in summer, so the power consumption of the battery in winter is greater. The colder it is, the shorter the mileage is.
(the above answers are provided by Hunan Changyuan Lico Co.Ltd(688779) technical team)
