The hot searches at the beginning of 2024 are almost all covered by the "Erbin" of ice and snow symbols.
From "lucid waters and lush mountains are invaluable assets" to "ice and snow are also invaluable assets", it will point out the direction for many places to transform resource advantages into economic advantages and competitive advantages.
Therefore, after becoming popular in Harbin, from January 30th to February 3rd, 2024, the first China Jilin Songhua River Ice Skating Marathon Challenge and the main venue of the 2024 National Fitness New Year's Greeting will be held in the Songhua River Ecological Tourism Scenic Area, Baishan City, Jilin Province. This is also Jilin Province's in-depth implementation of the development concept of "ice and snow are also invaluable assets".
It is worth mentioning that BYD, as the assistant brand of this event, as well as the main initiator and practitioner of "Cooling the Earth 1", BYD will exhibit new models such as Formula Leopard Leopard 5, Denza D9, N7 and Song L on the spot, and organize brand communication in combination with local characteristics, empower the concept of creating a natural ** ice skating track in Songhua River at 42 degrees north latitude, and help Jilin Province promote the high-quality development of ice and snow economy in cold regions.
So the question is, why did BYD, as a new energy vehicle company far away in Shenzhen, come all the way to the cold northeast to show people its pure electric vehicles and plug-in hybrid vehicles? Aren't these cars afraid of freezing?
The correct answer is: any new energy vehicle is afraid of cold!
In the cold winter in the north, the discharge performance of the power battery will decline, which is determined by its natural physical and chemical characteristics, even if Einstein is alive, it is difficult to completely solve it! Because the power battery will have the following changes at low temperatures:
1. At low temperature, some lithium ions lose their activity and cannot swim between the positive and negative electrodes, resulting in capacity loss.
2. At low temperatures, the electrolyte is frozen and thickened, which makes it difficult for the remaining active lithium ions to pass through, resulting in longer charging time and lower discharge performance.
3. At low temperature, the negative electrode lattice shrinks, making it difficult to stuff even the lithium ions that have worked so hard to stuff in, that is, it is difficult to fill.
Therefore, no matter which of the above three points will affect the performance of the power battery, not to mention that they will exist at the same time, plus when it is cold, people have to turn on the heating to increase power consumption, which is even worse, so it is normal for pure electric vehicles to be affected in winter!
But since human beings have invented the battery, they also have the ability to optimize it as much as possible, and BYD, as the world's largest new energy vehicle company, also has a unique "vehicle winter use plan".
DENZA N7 is the world's first pulse self-heating technology, which divides the battery pack into two and reuses the electromechanical control topology to realize the mutual charging and discharging of half pack 1 and half pack 2, so that even when the battery temperature is as low as -20, it can also achieve a higher temperature environment than the normal temperature environment, and its full charging time is only increased by 25 minutes, which is very rare!
In addition, the DENZA N7 can not only heat up the battery when charging, but also heat up when parked and driving, and finally achieve the three advantages of fast charging, long battery life and accurate temperature control in low temperature environments.
So the battery is not so cold, and the performance will naturally come, and there is nothing wrong with BYD's trick!
To tell the truth, at present, some grades of new energy vehicles will have heat pump air conditioning, because it is different from the previous new energy vehicles that are extremely power-consuming, similar to the principle of hair dryer PTC heating method, heat pump air conditioning is the opposite principle of summer air conditioning refrigeration, which is to absorb the heat source in the air, through the energy conversion into warm air delivered to the car, and the energy consumption requirements are not large, is a good thing.
However, the performance of heat pump air conditioners is also divided into three, six, nine and so on, and the general heat pump air conditioner will not work well when it is -10 in the outside world. And BYD's Denza D9, N7, Equation Leopard Leopard 5, and Song L's wide-temperature high-efficiency heat pump air conditioners can work normally even during -30 -60, and they are still fully self-developed.
This is not over, because any heat source in the cold winter is extremely precious, so BYD's heat pump system can actually absorb the waste heat generated by the three-electric system during operation, including the waste heat of the pulse self-heating technology mentioned in the first article above. BYD will use all these heat sources as warm air to blow to the cabin members as needed, which further improves the thermal efficiency.
Therefore, only the two technologies of "pulse self-heating" and "wide temperature range heat pump air conditioning" have allowed BYD to greatly optimize and alleviate the pain points of new energy vehicles in the cold winter. If Einstein were alive, he would probably shout 666 to BYD!
Let's talk about the "DMO off-road dedicated hybrid architecture" used on the equation Leopard Leopard 5, which is mainly electric, and is equipped with the world's first off-road dedicated longitudinal engine, the world's first longitudinal EHS electric hybrid system, and the world's first off-road dedicated rear-drive electric assembly, so that the comprehensive power of the Leopard 5 can reach 505kW, which can be called 50t displacement fuel vehicle system power!
And that's not all, the Leopard 5 system can reach 760Nm, the maximum traction force can reach 32000N, the maximum climbing is 45 °, and the acceleration from zero to 100 is 48s；The intelligent electric four-wheel drive, intelligent three locks, and the super power generation system equipped with DMO, the off-road support ability of up to 20kW of in-situ power generation capacity brings strong off-road ability to the Leopard 5; Coupled with fuel-saving genes and ultra-long battery life, the Leopard 5 can travel freely in extremely cold ice and snow!
In addition, the "ITAC intelligent torque control system" of the Leopard 5 is different from the previous electronic stability program, which can only restore the stability of the vehicle by reducing the power output, and it is upgraded to torque transfer, which uses a variety of control methods such as appropriately reducing torque or outputting negative torque to maintain vehicle stability.
Behind the ITAC, through the motor resolver sensor, the vehicle state change trend is accurately adjusted, combined with the body attitude, wheel status and other information, to dynamically adjust the power distribution of the front and rear axles, and improve the vehicle acceleration, comfort and handling.
Therefore, DMO and ITAC have joined forces to make Equation Leopard Leopard 5 not only run happily in the extremely cold ice and snow, but also run steadily!
BYD won four sales champions in 2023: the brand sales champion in the Chinese auto market, the sales champion of car companies in the Chinese auto market, the sales champion of the Chinese auto market group, and the sales champion of the world new energy vehicle market.
But all this is just a new starting point for BYD, how many new technologies are being bred or about to be released by the world's largest new energy car company? We keep looking forward to it!