What are the problems that need to be solved for electric new energy vehicles?

New energy vehicles are not as perfect as we imagined, and now new energy vehicles are mainly driven by electric energy, but electric new energy vehicles themselves have several key problemsOne is the safety of intelligence, the other is the battery life, and the other is the accessory of the infrastructure. <>

Intelligent safety is now widely spread a variety of automatic driving technology, whether these automatic driving technology is safe enough, before Tesla's brake failure incident is quite serious, anyway, this reminds people that intelligent technology, not necessarily are safe, the more complex electronic components are more likely to have problems, sometimes simple is the real safety, but with the continuous advancement of the intelligent era of automobiles, there will inevitably be a higher and higher degree of intelligence,The question of how to define this safety, which is safe in the laboratory environment and can be guaranteed in actual use, is a problem. <>

The problem of battery life is actually not so serious now, because now most of the electric vehicles have a general range of 500 kilometers or 600 kilometers is not a problem, and the long range can even reach 800 kilometers, and it is normal to not use so far, 500 kilometers can ensure this long-lasting battery life, and this battery life is related to people's driving experience, because the battery life is less than 100 kilometers leftPeople start to have range anxiety, and they worry that they won't be able to charge their cars in time. <>

The last one is the problem of infrastructure paving, electric vehicles you use to charge, you just use the alternating current at home to charge, the charging efficiency is very low, but you want to use charging piles, it is not all communities have charging piles, some old communities it just does not have charging piles, and if you live on the 3rd and 5th floors, you can't leave a good long plug row, and then charge your own car, that charge is full of overnight, but it has potential safety hazardsSo whether it's an old community, a public place or a highway, there should be more relevant infrastructure.

The problems of electric new energy vehicles: long charging time, poor battery life, high cost, etc., can be solved by increasing battery capacity and gradually popularizing charging piles. These require some high-tech enterprises, such as new material enterprises.

If you buy a new energy vehicle, the battery needs to be replaced after a few years, it will be tens of thousands of yuan, and the cost of replacing the battery is too high. This is a question that people hesitate to solve.

The range has always been a concern of people, the current new energy vehicles, the range of electric vehicles is not very long, can not meet people's expectations.

Whether new energy vehicles have the same powerful power as traditional fuel vehicles is also one of the issues that people are concerned about, and people generally think that the power is much worse than that of traditional fuel vehicles.

Turning on the heater in winter and turning on the air conditioner congenitally leads to excessive power consumption and shorter mileage. Traditional fuel vehicles can use the heat of the engine itself as the heat of the warm air**, which is a great advantage.

1. **High. In the same class, the price of electric vehicles is much higher than that of gasoline vehicles**. For example, Geely Emgrand, the price of fuel vehicles is 10,000 yuan, and the price of Emgrand EV is 10,000 yuan, and the terminal price has also reached 10,000 yuan after enjoying various subsidies, which is quite a big difference.

However, the spread is gradually decreasing.

2. Short cruising range. Traditional fuel vehicles can run more than 600 kilometers with a tank of fuel, while the current general calibration mileage of electric vehicles is between 250-450 kilometers, and the actual cruising range is generally between 200-350 kilometers, which is far less than traditional fuel vehicles, so it is difficult to adapt to long-distance running.

3. Slow charging speed. Although battery technology and charging technology have been advancing, the current charging speed of electric vehicles is still unsatisfactory, with slow charging in 6-8 hours or even longer, and fast charging 80% in 30-60 minutes, which is far longer than the time to refuel.

4. The supporting facilities are incomplete. This mainly refers to public charging facilities, at present, the number of electric vehicle charging piles in the country is limited, and some will be occupied by fuel vehicles, and sometimes need to queue for a long time.

5. Poor value retention rate. At present, the value retention rate of electric vehicles is not generally poor, but very poor, and it is basically difficult to find a trace in the second-hand car market, and many second-hand car dealers do not accept second-hand electric vehicles at all.

6. Obviously affected by the environment. In the low temperature environment of electric vehicles, the battery life will be significantly reduced.

Its battery is very indurable and cannot support long-term travel, and the safety performance of the battery also needs to be improved, and the retention and storage of energy also need to be improved.

In the past two years, new energy vehicles have been suspended worldwide &rdquo In recent years, new energy vehicles have become very popular as synonymous with environmental protection, energy saving and automobiles. New energy vehicles are very popular with everyone, which also allows more car companies to start developing new energy vehicles, and also accelerates the development of new energy vehicles. So today, Bian Xiao Automobile will briefly introduce some questions about new energy vehicles for friends.

What are the questions about new energy vehicles; &mdash charging station.

New energy vehicles are driven by electricity, so to ensure easy operation, charging is the key. Both public and private charges are included. Public charging refers to the opening of public charging stations to new energy partners, and private charging refers to the installation of charging piles by individuals.

Mr. Qiu, who does research work in the state-owned enterprise Socks Huicha, has not found a public charging pile suitable for private charging. Mr. Qiu followed the charging information provided by the Beijing Intelligent Charging and Swapping Network Management Platform to search for charging stations near Wuke Island in Haidian. However, the data shows that Sijiqing's flyovers and charging stations are basically closed to the outside world, not only buses, but also garbage trucks.

What are the questions about new energy vehicles; &mdash Endurance Travel.

Due to the limitation of battery capacity of electric vehicles, most of the cruising range is about 100-200 kilometers, which can meet the needs of people who usually commute to work, but cannot meet the needs of friends who go out on long-distance trips on weekends and holidays.

Judging from the reaction of the vast majority of small partners, some pure electric vehicles that claim to have a range of 300-400 kilometers cannot actually reach this distance. I think this is related to the age of the car, the environment in which the car is used, and the battery life, especially in winter, the battery charging time is short, the discharge is low, and the cruising range will naturally decrease.

What are the questions about new energy vehicles; &mdash High cost of repair.

Due to the high cost of new energy vehicles, the impact of high car prices, although there are some subsidies, but the vast majority of insurance companies will still calculate the premium according to the original car, if the battery damage is man-made, the insurance company will not compensate, and the battery in addition to their own doubts, can be repaired by the manufacturer to replace, other maintenance and replacement basic need to pay for themselves. Half of the cost of an electric car is a battery, so we can imagine how much it will cost to repair and replace.

The above is a brief introduction to all the problems of automobiles about new energy vehicles. What about new energy vehicles? The car briefly introduced three aspects for friends, namely charging piles, cruising range, and high-repair fees.

Although new energy vehicles are loved by many people, it still takes time to do better!

Millions of car purchase subsidies.

Anxiety about new energy vehicles.

First, of course, it is the "mileage anxiety" that has not changed for thousands of years

At present, the highest range of electric vehicles on the market is 600 kilometers, which is not worth mentioning in front of fuel vehicles, and these 600 kilometers are still "comprehensive working conditions", if you get on the high-speed, the actual range is also 450-500 kilometers between the cherry blossoms, and the endurance will be reduced at low temperatures in winter.

In fact, the high-speed battery life of about 450 kilometers can also meet the long-distance self-driving trip, even if the car does not rest, people have to rest, but the premise is to do your homework, grasp the power at any time, and record the charging facilities along the way, otherwise the possibility of breaking down without power is still very large.

Therefore, under the trouble of range anxiety, we do not recommend the first car to buy a pure electric vehicle, after all, for everyone who buys a car, they are dreaming of "poetry and distance", and in terms of distance alone, it is more reliable to fuel vehicles. If the family already has a fuel car, they can buy a pure electric vehicle with confidence. Of course, you can also choose a plug-in hybrid model, which not only experiences the smoothness and tranquility of new energy vehicles, but also takes into account the long battery life of hidden keys.

2. Spontaneous combustion. When it comes to new energy vehicles, many people will first think of this word, especially in the past two months, NIO ES8 has had a number of spontaneous combustion, which has brought a blow to the domestic new energy vehicle industry, making many people talk about new energy vehicles.

According to statistics, the spontaneous combustion rate of new energy vehicles in 2018 was about 10,000 in the country, and the spontaneous combustion rate of fuel vehicles in Shenyang in the same year was as high as 10,000. However, under the excessive publicity of some people with ulterior motives, many people have had a wrong perception of new energy vehicles, mistakenly thinking that new energy vehicles are easy to spontaneously combust, how to reverse this wrong perception, which is a major problem facing new energy vehicles in the future.

3. Slow charging.

After getting accustomed to the efficient way of filling up fuel vehicles in three minutes, many people find it difficult to accept the charging time of new energy vehicles, even the fastest fast charging at present takes nearly 30 minutes to fully charge 80% of the battery. In today's society where time is money, how should new energy vehicles reverse this disadvantage? The best way to carry the cluster is to fully popularize the charging pile, the charging pile is different from the gas station, does not need to occupy an additional area, and there are not so many potential safety hazards, it can be fully rolled out.

When every community, every shopping mall, and every parking lot has charging equipment, the problem of slow charging is completely resolved. After all, although the fuel truck is refueled quickly, it usually takes more than 30 minutes to drive to a gas station to fill up and drive back.

<> "What problems do new energy vehicles encounter today?

1) Vehicle safety The vehicle safety of electric vehicles has always been a problem, especially the battery, different types of batteries, have their own advantages and disadvantages, and the quality and reliability of battery cell materials, the attenuation of the battery at low temperature, the attenuation of the driving range after the battery pack is used for a long time, the safety protection of the battery pack, the thermal management of the battery pack, the dust and waterproof of pure electric vehicles, the collision safety of pure electric vehicles, the high-voltage safety of pure electric vehicles, etc., these are all different from traditional fuel vehicles.

2) In the case of a certain energy density, car companies solve the problem of range anxiety by stacking battery capacity, but the battery size is generally limited by the size of the whole vehicle, and it is impossible to expand indefinitely.

Therefore, if you want to expand the battery capacity, you need to increase the energy density of the battery, but this may also lead to an increase in the thermal risk of the battery, and the supporting system performance needs to be further improved. Today, the energy density of battery packs has reached the mainstream level of 160-180wh kg, and more and more new energy vehicles on the market can achieve a driving range of more than 600km.

3) Charging speed for Chanmengzhou in the current electric vehicles, slow charging generally takes several hours, and even if it is fast charging, it takes about 30 minutes to 60 minutes to charge to 80%, and refueling generally does not exceed 5 minutes, and the charging speed is still far from keeping up with the speed of fuel vehicle refueling, which will increase a lot of time cost for travel, especially for medium and long-distance travel. At present, there is no power battery that can take into account both charging speed and superior performance. Know the core.

4) Supporting facilitiesAt this stage, not all areas are covered with charging piles.

From the perspective of private charging piles, some old communities have not expanded their power capacity, and even have no fixed parking spaces, which still has some difficulties for the installation of charging piles, cumbersome procedures, and the need to obtain the consent of many parties, etc., which is only one of the many obstacles in the application and installation process of charging piles.

From the point of view of public charging piles, such as on the highway, many service areas are not equipped with charging piles, even if there are service areas with charging piles, the number is not much, plus some existing charging piles will face the situation of fuel vehicles occupying places, so queuing is inevitable.

On the whole, the infrastructure of charging facilities is still far from sufficient, and if you drive a pure electric vehicle to some remote areas, due to infrastructure problems, charging anxiety and range anxiety will often occur.