In the areas of power batteries, drive motors and electronic controls, China's auto companies have made significant progress -
New Energy Vehicle Standard System Initially Formed
Recently, BYD Group demonstrated its innovative technology in the field of electric vehicles in its "World Class Technology Analysis Conference" and focused on the publication of "Double-Drive Strategy" to demonstrate the layout of BYD's energy management system.
According to Wang Chuanfu, president of BYD Group, the "Double-Drive Strategy" is divided into two levels: First, traditional fuel vehicles and new energy vehicles are developing energy-saving technologies; second, in the field of new energy vehicles, "Dual Engine and Dual-Mode" are being promoted in the personal market. Promote pure electric vehicles in the bus market.
The "Energy-saving and New-Energy Automotive Industry Development Plan" announced in July 2012 proposes that in 2015, the cumulative production of pure electric vehicles and plug-in hybrid vehicles will be 500,000 vehicles. By 2020, the cumulative production and sales will exceed 5 million vehicles. Faced with the enormous potential of the market, whoever has mastered the technology will grasp the future.
For many years, China’s new energy vehicles have been in a “deep policy hot market†situation. Although the policy has benefited frequently and the planned sales target has been set high, the personal consumer market has always been fair. In the eyes of many consumers, "energy-saving cars" or "new energy vehicles" still remain in the concept stage and are far away from themselves. In order to “break the ice†in the electric vehicle market, in addition to policy guidance, we must also work hard in terms of technology and market.
The survey shows that the biggest problem faced by the promotion of new energy vehicles is that customers have concerns about the battery life and insufficient charging equipment infrastructure. In this regard, the competent authorities and enterprises are working hard to strive to break the bottleneck in battery technology as soon as possible and accelerate the layout of charging stations or charging posts.
As early as 2000, China’s “863†plan established “three vertical (three types of hybrid vehicles, pure electric vehicles, and fuel cell vehicles) three horizontal (power battery system, motor drive system, multi-energy power It is a matrix-based R&D system and a project management model led by "whole vehicle". Ye Shengji, deputy secretary-general of the China Association of Automobile Manufacturers, said, “In terms of finished vehicles, FAW, Dongfeng, SAIC and other domestic companies have gradually mastered the development of new energy vehicle vehicles. The products have achieved small-scale production and demonstration operations.†Key components In areas such as power batteries, drive motors and electronic controls, China's auto companies have also made significant progress, initially forming a new energy vehicle standard system and testing and evaluation capabilities, all of which have laid a certain degree of development for the development of new energy vehicles in China. basis.
Ye Shengji believes that "power batteries are still in urgent need of solving the constraints of cost and performance. High-specific energy battery has become a hot spot for technological development; durability technology is a key technology for automotive fuel cell systems and has been greatly improved in recent years; Technology has always been the focus of research, and fuel cell costs have steadily declined in recent years."
In recent years, many countries in the world have taken new energy vehicles as the main direction of the transformation of the automobile industry and accelerated the seizure of new technology vehicles. In the United States, for example, the automobile company "Tesla" won the first-place high-end car sales championship in the US market in the first place with 8,850 outstanding performances on the basis of a ModelS electric sports car. The hot sale of "Tesla" has also changed the dilemma of electric cars.
“At present, the global automotive start-up batteries use lead-acid batteries, which is a huge threat to the environment.†Wang Chuanfu said that BYD needs to change this situation and will introduce green hybrid technology that uses a 48-volt lithium battery instead Lead-acid batteries. This battery is not only the starting battery, but also can work as a driving battery. Vehicles adopting the green hybrid technology can not only automatically start and stop, but also can recover brake energy. From the naturally aspirated engine that integrates energy-saving technologies, to the TID powertrain that is synchronized with the world, the world's leading green hybrid technology, and the dual-engine dual-mode power, BYD has completed the strategic layout from single-drive to dual-drive, strengthening Energy management system.
Green mixed technology is an important part of BYD's energy management system. It saves energy by intelligently controlling the flow of energy on the car and increasing the energy conversion efficiency. It can be said that the concept of energy saving has been reconstructed. Green blend technology relies on BYD's mature iron battery technology to combine the power battery and the starter battery, achieving the lead-free of the whole vehicle and the same lifespan of the battery and the vehicle.
Wang Chuanfu said that the existing data show that lithium iron phosphate battery life is 2 to 3 times the vehicle. The promotion and use of such batteries will, to a large extent, promote the popularization of electric vehicles.
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