(BMS) industry: chaos and cluster problems

"Recently, China's new energy automobile application experience exchange and development conference" held in Shenzhen ping mountain district, the national "863" energy saving and new energy automobile project supervision consulting team Wang Binggang on BBS said, by the end of 2015, cumulative sales of the new energy vehicles in China will be hit more than 30 units, or in our country will become the new energy vehicles accumulative total sales of the most countries in the world.

Optimistic, electric cars under the high speed development brings hidden trouble also nots allow to ignore. Member of the electric car experts Qing quan Chen once said, "Battery pack without battery management is a bomb ", the importance of battery management system (BMS) can be seen, but there are many problems in the field of BMS in China.

Domestic product design concept is primary

“The fundamental gap of internal and overseas BMS products is from the design concept.” Foreign enterprises BMS (battery management system) to consider more on the hardware design is functional safety, and domestic is still at the development stage of the product performance level." Shanghaispecial power technology co., LTD., director of BMS engineer Simon told reporters, "domestic automotive electronics research and development ability are relatively weak, as car electronics BMS is still in the phase."

Beijing Boston battery technology co., LTD., in charge of the senior director of product development jun-feng ma opinion is quite consistent with Simon. Jun-feng ma believes that our country and foreign enterprises on the BMS design level of the difference of thinking is different, "China electric car has just started, oems to BMS product knowledge is not enough, so the requirement of production enterprises is relatively low, the BMS production enterprise product quality natural not too high."

Jun-feng ma told reporters that the idea disparity also is closely related with the difference of BMS development at home and abroad, domestic BMS enterprise mostly for consumer electronics companies, relatively few really involved in the field of auto parts enterprises, these enterprises to the battery and car understanding is not deep, design products may exist deficiencies; BMS design mainly auto parts enterprises abroad, understanding of automotive safety deep enough, to produce a product safety and functionality are relatively high.

New energy car battery management system

Domestic BMS development relative lag may be there are other factors, such as research and development team is not stable.Zc, information consultancy, chief adviser TongZiQian told reporters that domestic enterprises r&d talent liquidity is bigger, the continuity of the development of product technology is not strong, this is the product concept, technology, another important reason for the relatively sluggish development.

Poor product standards certification

Reporter in the interview, deputy director of China federation of electric power enterprise standardization management center yong-dong liu, he mentioned that the battery management system of quality control does not reach the designated position. For this claim, the reporter also verify to Simon. Simon told reporters that the industry is lack of compulsory certification standards for BMS, standard certification system is not perfect, the market situation is relatively chaos, as long as oems, product can be put on the market." "BMS from design, production to the market, normally takes a year or so."Jun-feng ma told reporters that "a lot of automobile enterprise in order to complete the inspection task, will compress the entire battery production process, cause not through appropriate tests of products on the market."

Jun-feng ma says that international in the field of automotive safety have a series of certification standards, such as IS026262 automotive electrical system functional safety of international standards, "many domestic companies would not test standards of certification, automobile enterprise and seldom requirements BMS enterprise must through the appropriate certification test."

In TongZiQian view, many domestic enterprises itself might not have related detection ability." Enterprises should design a suitable BMS requires a series of tests was carried out on the batteries, PACK, BMS, but many domestic enterprises have no related equipment and testing ability."TongZiQian told reporters.

Under the subsidy policy in order to "quality" in "quantity"

In jun-feng ma opinion, national subsidy policy to a certain extent, disturbs the order of domestic BMS industry." The vehicle enterprises are in a hurry, don't give BMS company enough time to do the relevant certification testing."Jun-feng ma told reporters, "national subsidy policy has clear TuiPo time node, BMS enterprise must through a series of certification testing will not only increase the cost, will also take quite a long time, that could lead to car companies miss the corresponding subsidies time node, as a result, few companies willing to put into these costs."

Parsing the battery management system (BMS) industry: problems a mess

Ma junfeng also revealed to reporters another situation, in order to obtain the corresponding subsidies will take some measures, "even some individual enterprises' products will not really sold to the market, just through some means, so that the vehicle has been sold or car rental company's vehicle to obtain subsidy funds. "These kinds of enterprise battery systems don't require any certification testing, and they don't have any safety issues because they're not on the road at all." "They may also receive subsidies that are much higher than the cost of production, so they can make a profit without selling," ma told reporters.

Growing up under the national policy to promote the electric car industry, the big increase in sales, also buried a great hidden danger for the development of BMS, this a series of problems caused by the reason for the rapid expansion of market is not time enough for BMS industry's growth. Completely in jun-feng ma opinion, only the electric car industry has entered into the phase of market competition, the development of BMS will return to rational, the security performance of the product will truly become the primary standard of enterprises to choose the product.

The page contains the contents of the machine translation.