BYD builds an all-round charging system with five world-first technologies

On December 19, BYD held the "More Than Fast, All-Round Evolution - BYD Full-Scenario Efficient Charging Technology Communication Conference" in Beijing, which fully demonstrated that in different periods of new energy vehicle development, BYD has continuously launched solutions that are more in line with the needs of new energy users and the national conditions of charging, and continued to lead the innovation process of charging technology.

In the early stages of the development of new energy vehicles, the industry generally faced three difficulties: no charging technology, no charging infrastructure, and no charging standards. In order to solve these development problems, BYD took the lead in achieving a breakthrough in charging technology from 0 to 1. On both the vehicle side and the charging pile side, it independently developed AC and DC charging technologies for home and public areas, providing a reference model for the national AC and DC charging standards, and also became one of the first drafting units of China's electric vehicle charging standards. BYD's series of technological breakthroughs have provided a Chinese solution for new energy vehicle energy replenishment, giving China's new energy vehicle charging technology a "root".

Charging has always been the most concerning pain point for new energy users, and it is also the key area of ​​BYD's technological innovation and R&D investment, just to allow users to enjoy a leap in charging experience.

User pain point 1: Early electric vehicle experience was poor and charging efficiency was low

BYD pioneers 800V high voltage platform and boost charging technology worldwide

In the early days of the popularization of new energy vehicles, in order to break through the technical limits of power, endurance, charging, etc. and create a more extreme electric vehicle experience for users, a technological breakthrough in the high voltage of electric vehicles is imperative. BYD took the lead in achieving a breakthrough in 2015, and created the world's first 800V high-voltage platform for passenger cars, which was installed on models such as Qin EV (2015 model) and Tang DM (2015 model). This technology can achieve an acceleration of 0-100 km/h in as fast as 4 seconds, a pure electric range of up to 450km, and a fast charging power increase of 60kW, which comprehensively upgrades the user experience. BYD's 800V high-voltage platform is 2-3 generations ahead of the industry. At that time, all passenger cars on the market were low-voltage, and only BYD was high-voltage. Today, the industry is competing to enter the 800V high-voltage platform track.

Although high-voltage models greatly improve the charging power of electric vehicles, at that time, 95% of the charging piles in China were low-voltage piles below 500V, which were incompatible with high-voltage models and affected the charging efficiency. To solve this problem, BYD pioneered the world's first boost charging technology, which completely achieved vehicle-pile compatibility and fully adapted to all DC charging piles.

User pain point 2: Most fast charging piles still don’t charge fast enough

BYD pioneered the world's first dual-gun supercharging technology for passenger cars, turning public fast-charging piles into supercharging piles in seconds

At present, there are only 2% of public supercharging piles with a current exceeding 300A. Fast charging piles are widely used, while supercharging piles are extremely scarce. Instead of letting users compete for a very small number of supercharging piles, it is better to make full use of the existing public fast charging pile resources of more than one million.

To this end, BYD has launched a flow-up solution that is more in line with my country's charging conditions. It is the world's first dual-gun supercharging technology for passenger cars, which allows public fast-charging piles to become supercharging piles in seconds, providing more energy in a short time and supercharging everywhere. Taking the Denza N7 as an example, the maximum power of the dual-gun supercharging can reach 230kW, and a 350-kilometer charging range can be achieved in 15 minutes on a public fast-charging pile.

It must be fast and safe. Because the up-flow technology is more demanding on battery thermal management, BYD has pioneered the world's first composite direct cooling technology. Through the design of direct cooling plates on both the upper and lower sides of the battery, and two sets of independent refrigerant control systems, a compensating flow channel design has been carried out, which increases the battery cooling area by 100% and the heat exchange capacity by more than 85%, ensuring the safety of supercharging for users.

User pain point 3: Charging efficiency is greatly reduced in northern winter

BYD's world's first full-scenario intelligent pulse self-heating technology enables fast charging even in extreme cold in the north

The north is extremely cold in winter, and charging efficiency is slow. BYD pioneered the full-scenario intelligent pulse self-heating technology, and for the first time in the industry, it achieved cold car fast charging at extremely low temperatures.

Under extremely cold conditions of -30℃, taking the BYD N7 as an example, the full-scenario intelligent pulse self-heating technology increases the battery heating rate by 230% compared with traditional solutions, and reduces the battery full charging time by 30%, allowing northern users to enjoy the fast charging experience in winter.

Not only can it self-heat while charging, but it can also intelligently activate self-heating technology while parked or driving to ensure the performance of the entire vehicle at extremely low temperatures.

Build a charging technology system that is more in line with the current national conditions and continuously upgrade users' full-scenario charging experience

With 20 years of technological accumulation and profound foundation, BYD continues to innovate and invest in R&D to build a charging technology system that is more in line with current national conditions. It is not only fast, but also continuously upgrades users' full-scenario charging experience.

As a winner of Toutiao's Qingyun Plan and Baijiahao's Bai+ Plan, the 2019 Baidu Digital Author of the Year, the Baijiahao's Most Popular Author in the Technology Field, the 2019 Sogou Technology and Culture Author, and the 2021 Baijiahao Quarterly Influential Creator, he has won many awards, including the 2013 Sohu Best Industry Media Person, the 2015 China New Media Entrepreneurship Competition Beijing Third Place, the 2015 Guangmang Experience Award, the 2015 China New Media Entrepreneurship Competition Finals Third Place, and the 2018 Baidu Dynamic Annual Powerful Celebrity.