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In the process of demonstration and promotion of new energy vehicles, many deficiencies have been exposed, such as insufficient charging infrastructure construction, poor charging interconnection, rising local protectionism, and increased vehicle safety hazards. Among them, the security issue needs to be addressed urgently. Especially in the past year, electric vehicle safety accidents have shown an upward trend, in addition to a small number of low-level new energy vehicle products into the market, there are also due to their own safety protection is insufficient, charging and operation monitoring protection is not enough to cause safety accidents.
The safety of new energy vehicles is a systematic project, involving the safety of new energy vehicles, the safety of power battery monomers and systems, the safety of charging infrastructure and many other environments, which require the joint efforts of the whole vehicle and power batteries and infrastructure, strengthen the improvement and promotion of the entire system engineering technology, establish an effective operation safety and charging monitoring and guarantee system, strengthen safety supervision, improve the operational efficiency of new energy vehicles, ensure the effect of the promotion and application of new energy vehicles, and effectively achieve the purpose of energy conservation and emission reduction. The biggest difference between electric vehicles and conventional gasoline and diesel vehicles is the addition of high-energy electric energy storage equipment and matching control systems. The introduction of new energy has brought new challenges to the mature automotive industry, which has been developing rapidly for about half a century.
Energy storage devices (power batteries and supercapacitors, hereinafter referred to as batteries), BMS and chargers are the three most important factors affecting safety. How can we effectively control the safety of new energy vehicles? Can this be achieved through technical changes?
In fact, I think it can be done, and through technical changes, it should be possible to avoid such incidents. You can see the safety and solutions of new energy vehicle power batteries of ofweek new energy vehicle network.
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I think the biggest safety problem of new energy vehicles is inFire protection aspects of automobilesThe larger the capacity of the battery, the greater the energy of its own, for new energy car companies, they have also done a lot of homework on fire prevention.
We all know thatDayuWater control is not blocking, but dredging, this Great Wall brand"Dayu battery".This is how it works, that is, if the battery is damaged in the event of a collision, the battery will be removed immediatelyThe heat flow leads out of the battery, no more burning outsideQuickly separate the battery from this heatHowever, this technology is not used much now, and Great Wall should use it in subsequent models.
In fact, this Kaitanlu technology can be said to be a direct danger of simplification, many car companies use batteries to prevent fire, and Dayu battery is to solve the problem, is to generate heat, the heat is directly discharged from the inside of the battery, both seem to be protecting the battery, in fact, two different technologies.
Speaking of BYD, everyone can think of its ownBlade battery。The most feared thing about the car's battery is that after being damaged by Xinwu, there will be a short circuit inside, and BYD has made this battery in order to increase safety, and it is okayTake puncture damageTarget. That is to say, if the car causes the vehicle's battery to be punctured by a foreign object after an accident, it will not lead to **, which increases the safety of the car.
And this kind of battery is developed by BYD itself, in terms of cost and technology and a series of other aspects, BYD has its own advantages. At present, most of BYD's cars use blade battery technology, especially in some models exported overseas, and many of them use blade battery technology.
Speaking of GAC Aion, everyone can think of it at once"Magazine battery".。This battery technology is equivalent to adding a protective cover to the batteryThat is to say, in the event of a collision, the battery can be effectively protected from external damageIt can also ensure that after the internal damage, it will not diffuse and burn to the outside, that is to say, it plays two protective roles in terms of battery safety, which not only protects the external impact, but also ensures that the internal ** does not spread to the outside.
This kind of battery is currently used a lot, basically a pure electric vehicle under GAC Aion.
Both use this battery technology, and it's at the cost of manufacturing.
The upper part is relatively less, mainly the design of the shell, of course, this kind of fully enclosed battery, the thermal insulation effect is also good.
For new energy, the safety of batteries is very importantMany car companies also have their own exclusive technology, some car companies are to extinguish the battery before the battery, and some car companies are to control the heat to discharge the battery pack, which is fundamentally to protect the battery, not to let the battery, increase the safety of new energy vehicles. The above is my understanding of the battery safety of new energy vehicles, which new energy vehicles are you still interested in, you can leave a message below and communicate their battery technology with you.
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If you encounter a safety problem, you must call the insurance company, or you can send the car to a professional car shop for maintenance, because the problem is very serious, if He seeps Liangguo is not solved in time, it will definitely make the car scrapped, so when we encounter this situation, we must find someone who specializes in bad business to help us solve it.
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First of all, the manufacturer or lead developer should focus on the safety of the problem, to choose the lithium battery with a relatively high safety factor, to ensure the density and working temperature of the battery, after the vehicle assembly should be tested many times, and then to ensure the safety factor, can not occur spontaneous combustion or operation failure.
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First of all, it is necessary to choose the correct use of materials, in the process of building new energy vehicles, to install better quality lithium batteries, and to carry out all-round monitoring of the battery, to adjust the vehicle itself without a few acres of ashplant, increase the proportion of battery weight, and strengthen the brake function.
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First of all, the relevant automobile manufacturers should strengthen the top-level design, improve the cooperation with the first wild oak, strengthen the side inspection measures of An Songxiang, and systematically understand the safety issues of electric vehicles, and then increase relevant research and development efforts to improve the safety of batteries.
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We should improve the technology, pay attention to the top-level design, and have perfect standards and policies, and increase the degree of research and development, so as to solve the safety problem of automobiles.
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<> "What are the problems of new energy vehicles in terms of safety?"
For example, a new energy vehicle in Hangzhou collided with the highway toll station facilities during driving, causing a fire, resulting in the death of all 4 people in the car, from the collision to the first 2 seconds, the fire is very fierce.
This incident quickly aroused widespread concern and questions from netizens about the safety and reliability of new energy vehicles. As an environmentally friendly and sustainable means of transportation, new energy vehicles are highly regarded in terms of energy conservation and environmental protection, however, their safety issues cannot be ignored.
Due to the characteristics of power battery technology, new energy vehicles in the collision process, may face greater safety risks, the high energy density and complex chemical composition of the battery pack, once suffered a serious collision or damage to the phenology, it is very likely to cause fire and **.
In addition, the battery charging system and electrical system may also have potential safety hazards, such as thermal runaway or short circuits.
Then there is the requirements and standards of manufacturers and relevant regulators in the safety of new energy vehicles need to be further improved to ensure the safety and reliability of new energy vehicles.
Of course, we can't blame the new energy vehicle itself, traffic safety is a comprehensive problem, involving many aspects, but one of the most important is that the driver must abide by the traffic rules, only by driving in a standardized manner, in order to avoid traffic accidents, and also to do a good job of vehicle maintenance.
Regarding the safety of the car, the most fundamental one is that the driver must obey the traffic rules, otherwise, everything else is a floating cloud, if you do not obey the traffic rules, you are given a military armored car, or you may fall into a deep ditch and die, or fall into the river and drown.
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1. Risk of spontaneous combustion.
Some new energy side imitation source models burn during charging, while some models cause combustion accidents after collision or wading.
Second, the battery reason.
New energy vehicles use ternary lithium batteries.
If the battery is fully charged, it is easy to crystallize and puncture the battery separator and cause a short circuit. The battery layout of the new energy vehicle is placed in the chassis, if you drive to some potholes or debris on the road, once the crack bumps the battery, there is a chance of spontaneous combustion.
The right thing to do for new energy vehicle owners.
1. As the owner of a new energy model, you can also check your car from time to time, such as returning to the 4S store every 5,000 kilometers.
Check the working condition of the battery.
2. Ask the master to check whether the chassis is damaged. When Yunyuan fiber is charging, it should be operated according to the manufacturer's requirements. In this way, it can effectively reduce the safety hazards of new energy vehicles.
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