It is undeniable that the biggest hurdle plaguing the development of electric vehicles is still range anxiety. Under the premise that battery technology cannot make a rapid breakthrough,Super fast charging technologyIt has almost become a lifesaver for various car companies, and in less than a year, they have launched 800V pure electric platform ultra-fast charging technology, but,Can ultra-fast charging technology really achieve ultra-fast charging?
According to statistics, the existing public charging facilities in the domestic market are designed in accordance with the 2015 version of the charging national standard, and the maximum charging current of 250A restricts the charging power of electric vehicles, and the current exceeds 300A only public overcharging piles。In other words, although cars equipped with ultra-fast charging technology are already everywhere, there are few public charging piles that can fully play their functionsTherefore,In most charging scenarios, ultra-fast charging technology is difficult to use at its full capacity.
Based on this, BYD pioneered the "passenger car dual-gun overcharging" technology, which makes full use of the huge public fast-charging pile ecology to "".Uplift"The plan is to improve the high-power fast charging efficiency of public piles. In layman's terms, a car can be connected to two charging piles, so that the vehicle can break through the current limit of the national standard of 250A for public fast charging piles, and the maximum charging current can be doubled to 500A.
Let's take the DENZA N7 equipped with dual-gun charging as an example, the dual-gun charging power can easily achieve more than 230kW of charging power, and the fast charging capacity can be achieved from 10%-80% on public charging piles in 20 minutes.
Of course, to achieve such a high-power fast charging capacity, it is certainly not as simple as just adding a charging port, but also to improve the requirements for battery thermal management, which is the embodiment of BYD's profound heritage in fast charging technology.
According to Ling Heping, vice president of BYD Automotive Engineering Institute, BYD has five world-first technologies in passenger car fast charging technology:
In 2015, the world's first 800V high-voltage platform for passenger cars;
In 2015, the world's first step-up charging technology;
In 2023, the world's first dual-gun overcharging technology for passenger cars;
In 2023, the world's first full-scene intelligent pulse self-heating technology;
In 2023, the world's first composite direct cooling technology;
It is precisely because of BYD's profound technical accumulation and deep thinking about the actual car use scenarios of customers that it has launched a more cost-effective and practical dual-gun charging technologyDual-gun supercharging is compatible in the past, expandable in the future, user-friendly, and friendly to chargers, providing positive and powerful positive empowerment for the sustainable construction of the domestic fast charging ecology.