As the penetration rate of new energy continues to rise, the configuration and range performance of many electric vehicles have met the expectations of consumers, but energy replenishment is still a major challenge for the current industry. As a result, many emerging automotive manufacturing forces have invested in the research and development of energy replenishment technologies. All kinds of 800V charging technologies are vying to come out, and now BYD has also launched a new charging system.
Recently, BYD successfully held a dual-gun fast charging technology exchange meeting in Guangzhou. At this event, BYD showcased its continuous innovation solutions in an all-round way to better meet the needs of new energy users and the charging national conditions. The company is committed to improving the charging experience of users and striving to achieve the qualitative improvement of user experience.
Boost + dual-gun overcharging relieves slow charging
At present, the problem of energy replenishment of electric vehicles is still a pain point for many car owners, and different car companies have adopted a variety of different strategies to solve this problem. In this area, BYD has taken a number of innovative measures.
Unlike the 800V high-voltage fast charging technology launched by other car companies in the past two years, BYD took the lead in launching the world's first 800V high-voltage platform for passenger cars as early as 2015. BYD's models such as the Denza D9, Han EV, and even the 2015 Qin EV and Tang EV are all 800V models. This high-voltage platform surpassed the industry by 2-3 generations, when most passenger cars on the market used low-voltage technology, and BYD became the only manufacturer to adopt high-voltage technology.
In addition, BYD also launched the world's first dual-gun supercharging technology for passenger cars, which quickly upgraded public fast charging piles to supercharging piles. The technology enables multiple energy replenishments in a short period of time, providing more flexible charging options. Taking the Denza N7 as an example, the maximum power of the dual gun reaches 230kW, and the single gun is 150kW, and it only takes 15 minutes to charge 350 kilometers on the public fast charging pile. Although BYD's charging efficiency is slightly slower than other 800V fast charging products, the dual-gun overcharging technology does not need to improve the charging station, and it is suitable for BYD, which has a large number of users, and has become a solution that is more in line with the development direction of the enterprise and maximizes the value of existing charging piles.
Improve charging efficiency in severe cold areas
In the cold winter in the north, electric vehicles face many problems, including not only the decline in range performance, but also the difficulty of charging in low temperature environments, which seriously affects the car experience of consumers. In order to solve this problem, BYD took the lead in launching the full-scene intelligent pulse self-heating technology, which is the first in the industry to realize fast charging of cold cars at extremely low temperatures, ensuring that the charging speed is not affected in low temperature environments.
According to the official introduction, under the extremely cold conditions of -30, taking the DENZA N7 as an example, the all-scene intelligent pulse self-heating technology has increased the battery heating rate by 230% and reduced the time required to fully charge the battery by 30%, so that users in the north can enjoy a fast charging experience even in the cold winter. This technology not only automatically heats up when charging, but also intelligently activates the self-heating technology when parked and driving, ensuring the performance of the vehicle at extremely low temperatures.
In the pursuit of fast charging, safety is equally important. Due to the higher requirements for battery thermal management of up-current technology, BYD took the lead in adopting the world's first composite direct cooling technology. Through the design of laying direct cold plates on the upper and lower sides of the battery, as well as the compensating flow channel design of two sets of independent control systems, the cooling area of the battery has been increased by 100%, and the heat exchange capacity has been increased by more than 85%, providing users with the guarantee of overcharging safety.