In the long river of automobile history, the electric car is an episode or a passer-by. With the development of battery technology, it is certain that electric vehicles will become the mainstream drive technology in the future. Facing the new technology, the market needs a process and time to adapt. Now the biggest concern of consumers about electric vehicles is undoubtedly the three aspects of battery life, convenient charging and safety. It's easier said than done, and there has been an obvious breakthrough in battery life and energy supplement. In terms of safety, although it has also improved, it is difficult to compromise from the consumer's point of view. Today, no brand dares to say that it is absolutely safe.
Therefore, the safety of electric vehicles is relative. At present, new energy vehicles on the market, especially new energy brands, have basically experienced spontaneous combustion. However, Dongfeng Nissan ARIYA ARIYA seems to have no news in this regard. At least for now, the safety of this car is relatively safe compared with other brands.
Many people will argue that it is normal for Nissan ARIYA ARIYA to have a small market share, no spontaneous combustion and no quality news. There is some truth in this statement, but it is still necessary to analyze why Nissan ARIYA ARIYA is so safe from a technical perspective!
As the first electric vehicle of Dongfeng Nissan, Aria Aria integrates all Nissan technologies into the car. This car is based on Nissan's world-class cloud map professional pure electric platform, which is highly integrated with Nissan's independent research and development of three electric technologies, including flying carpet battery compartment.
Nissan is one of the few car companies with battery assembly lines. Under the highest standards of Nissan in the world, Aria Aria has a customized, specialized and independent battery technology route. Create a security line with a nine-fold physical protection architecture. In the safety protection of passive safety trams, ARIYA adopts an integrated aluminum battery shelter. Of course, this is not unusual. In order to meet the requirements of lightweight and hardness, basically all car companies use aluminum battery bins. But the difference is that the aluminum alloy material of ARIYA ARIYA is 25mm thick and has a double-layer design to create a high-strength shell.
Six reinforced aluminum column beams
Moreover, ARIYA ARIYA also added six reinforced aluminum column beams in the battery compartment, which is equivalent to adding six aluminum crash beams in the battery pack, which can improve the compressive strength of the battery pack.
Nissan high standard custom-made battery core
Compared with the disorderly wiring harness layout of some brands of battery packs, the wiring harness of ARIYA ARIYA battery packs is precise and standardized, and aerogels are installed between batteries to prevent the batteries from getting out of control. If one of the batteries is out of control, the aerogel insulation pad between the batteries can also delay or prevent the heat diffusion and flame spread.
In addition, the double-layer module used in the battery pack has a unique double anti-collision bumper, which creates the first line of defense for passive battery safety protection.
1500MPa ultra-high strength steel
This is the safety technology in the battery compartment, and outside the battery compartment, ARIYA ARIA also uses 1500MPa ultra-high strength steel to build a protective diamond cover, and the bottom of the battery compartment is covered with chassis protective armor.
Chassis protective armor
Coupled with the collapse protection space of 360, the energy absorption of side impact is nearly twice that of C-NCAP standard, which is the second line of defense for ARIYA ARIYA battery safety.
360 folding protection space
After talking about passive safety, let's talk about active safety protection. Nissan's self-developed full-working-condition battery accurate management system can accurately monitor more than 200 items of data in real time in the shortest time 10 millisecond, and realize intelligent adjustment of battery working state. Moreover, ARIYA battery pack also has an industry-leading integrated liquid thermal management system for dry and wet separation, which can intelligently control the temperature according to environmental changes and keep the battery in the best condition.
Dry-wet separation integrated liquid thermal management system
If these technologies are not tested, everything is superficial. Therefore, ARIYA ARIYA battery will undergo a series of safety tests in the development and verification stage, including mechanical safety tests, environmental safety tests, electrical safety tests and other types of tests, such as falling from high altitude, freezing, flooding, fire, collision, etc.11,and comprehensive tests will be conducted to ensure the safety of the battery pack.
We must admit that safety is the key point that every user can't compromise, and battery safety is also the core of new energy vehicle safety. Appreciation greatly affects the development of new energy vehicles. As Dan Shao Min, a battery development engineer in the Power Device Development Division of the New Energy Development Department of Dongfeng Nissan Technology Center, said, "There is no shortage of good products in the market now, but good products are not necessarily good products." Yes, we have seen that many best-selling models have frequent safety problems and all kinds of disrespect for users, but they are still highly sought after. Maybe we consumers need to know more about other products. The product development principle of Dongfeng Nissan is to stick to the bottom line of customer safety and make products with the highest development standards. Even though ARIYA ARIYA is not a good product, it is definitely a good product in the eyes of Bing Ge.
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