Battery management system (BMS) for real-time monitoring, automatic balancing, intelligent charging and discharging of electronic components, security, longevity and estimate the residual capacity and other important function, is the indispensable important component in the dynamic and energy storage battery pack, it through a series of management and control, ensure the normal operation of the electric car.

New energy electric cars with traditional fuel cars is the biggest difference in power battery as a power drive, and as a battery, motor vehicle system and the important link, the importance of battery management system (BMS) is self-evident. Battery management system (BMS) for real-time monitoring, automatic balance, electronic components of intelligent charge and discharge, security, longevity and estimate the residual capacity and other important function, is the indispensable important component of power and energy storage battery pack.

Many new energy automobile enterprises at home and abroad will be battery management system (BMS) as the core of enterprise technology, familiar of tesla's electric car "3 big", from panasonic battery, motor from Taiwan supplier in China, but only the battery management system (BMS) is the core of independent research and development technology, during the 2008-2015 tesla applied at the core of intellectual property rights are mostly related to the battery management system, thus the importance of battery management system for new energy vehicles.

Battery management system (BMS) market

As the growth of the new energy vehicle sales, battery management system of the rapid growth of the size of the market. Currently, vigorously develop new energy vehicles has become a national consensus that the world's major countries like the United States, China, Japan, Germany, South Korea, such as the UK have built their magnificent new energy automotive industry planning.

Global battery management system (BMS) market in 2013 GDP growth of more than 10%, from 2014 to 2016, growth will jump to 25-35%.

Global electric car sales in 2015 is expected to more than 1 million vehicles, battery management system (BMS) market scale will reach about 20 billion yuan. If considering the hybrid vehicles, battery management system (BMS), the total size of the market is expected to reach 40 billion yuan, visible battery management system (BMS) broad market space.

In accordance with the plan to 2020, the Chinese pure electric vehicles and plug-in hybrid electric vehicle production capacity of 2 million units, the cumulative volume has more than 5 million vehicles, the battery management system (BMS), the size of the market is expected in 2020 amounted to 2020 yuan of above.

Both auto oems, battery and auto parts suppliers into the battery management system (BMS) technology research and development, has asked to master the key core technology of electric vehicle and foreign auto parts supplier DENSO (DENSO unit), BOSCH (BOSCH) with the oems already head of supply chain status, DENSO for Toyota electric vehicle battery management system, and BOSCH for BMW electric vehicle battery management system; And battery giant LGC also unwilling to lag behind, respectively, in collaboration with general motors, ford and Volvo, provide them with a battery management system.

Technology research and development of battery management system of our country mainly concentrated in the three kinds of enterprises:

1, new energy car makers, on behalf of the enterprise: byd, Beijing new energy

2, battery manufacturers, on behalf of the enterprise: CATL, walter, pride, yan wanda, etc

3, professional battery management system (BMS) manufacturers, on behalf of the enterprise: all electronic, huizhou hundred million, anhui power high, different countries to shenzhen branch column technology, shenzhen, hangzhou jie can power, etc

Nearly two years of new energy automotive industry has risen from its early into the growth period, predictable vast market prospect has attracted various capital into the new energy vehicles, power battery, BMS, materials and equipment, and other segments.

Battery management technology also widely attention in our country, there are a lot of professional manufacturers, power battery enterprises and the whole car manufacturer engaged in the research and production, currently estimated at least hundreds, but domestic numerous battery management system (BMS) manufacturers, mostly private enterprises, the market is showing a very fierce competition. Some enterprises through their own research or acquisition, mastered the advanced technology of battery management system, for example - electronic; The company can only develop low-end part about the battery management system (BMS) products, various vehicle makers choice of battery management system (BMS) also has a different, more for the battery management system (BMS) of vendors brought opportunities for development, at the same time as the number of battery management system of enterprises more and more and upgrading of technical requirements, battery management system (BMS) has further the industry reshuffle.

The domestic development of battery management system (BMS) advice:

Technical parameters and standard

At present our country because of the lacking of technology parameter and standard or behind the international standard, also have no authority to the production of battery management system (BMS) for authoritative testing, this is the domestic battery management system (BMS) market, led to the battery management system (BMS) products of the good and bad are intermingled. Battery management system (BMS) system is about driving safety products, standardization management is necessary, specifications for the better industrial development as soon as possible. At the same time, also need to determine domestic authoritative testing institutions to test the standardization of the product.

To speed up the core components of the localization

Despite numerous domestic battery management system (BMS) enterprise, there are also many enterprises to master the battery management system is the core algorithm, but in terms of the core components such as microcontroller (MCU), battery measurement and communication IC, etc., still mainly rely on import. There is no doubt that the chip will build future core competitiveness, no matter traditional or new energy car.

Posse kwang-tzuu Chen senior expert recently said, "in the new normal development situation, the lagged development of auto chip is a auto industry transformation and upgrading of a core of cutting, auto chip development, or will be auto industry to get rid of them opportunities."

Maxim battery management system (BMS) scheme

Summary: new energy automobile security problems, has been one of the focus of the work of the auto industry, the rapid development in the prospect of new energy vehicles at the same time, we must recognize that stability, efficient, safe and reliable battery management system (BMS) products, is the key to guarantee the normal operation of the electric car, only in this way can our country new energy vehicles have a sustainable development in the future.