As a means of daily travel, E-bike has always been one of the most popular ways of travel for the masses. At present, it has a very large user market in China. However, for a long time, rechargeable battery, the key accessory of electric vehicle, has become the object of many users' complaints due to the problems of difficult charging, long charging time, difficult maintenance and incomplete protection. And with the booming of take out market, more and more take out boys use the way of E-bike delivery, these problems are more and more obvious. In the future, it will become very urgent to solve this market demand.
In order to solve all the disadvantages of the existing ternary lithium battery, improve the protection performance of the existing lithium iron phosphate battery, and strengthen the tracking and service of the products, Zhuhai mingyuanzhirui Technology Co., Ltd. (hereinafter referred to as "mingyuanzhirui") complies with the urgent needs of the electric bicycle, especially the urgent needs of the shared electric pool. The latest myzr-bms4815 lithium iron phosphate battery protection system, with its outstanding Its technology and system performance solved many problems for the industry and quickly gained market recognition. For this reason, the reporter visited Zhuhai mingyuanzhirui Technology Co., Ltd. to have a deep understanding of this technology.
ntegrating hardware protection and software protection
Zhuhai mingyuanzhirui Technology Co., Ltd. was founded in 2012. The company has been focusing on the R & D, design and production of ARM embedded core control system for a long time. It has obtained the national high-tech enterprise qualification, passed the NXP certification of the world famous semiconductor company, and officially became the IDH gold partner of NXP.
It is understood that the latest myzr-bms4815 lithium iron phosphate battery protection system launched by mingyuanzhirui is a product integrating hardware protection and software protection in the market. The system has the functions of on-board GPS positioning and GPRS communication, with high integration. It can monitor the parameters of battery protection board and the location of battery board in real time, so as to control and track the products.
For a long time, safety and battery life are the two core problems of lithium battery system. After the measurement and inspection of many technologies, mingyuanzhirui chose the lithium iron phosphate battery protection system for in-depth research and made some breakthroughs. The biggest highlight of the protection system of myzr-bms4815 lithium iron phosphate battery is the combination of hardware protection and software protection. In this way, corresponding protection time can be set for all current values. Compared with the common protection board which only has three current value protections, i.e. one-stage overcurrent, two-stage overcurrent and short-circuit protection, the protection system of myzr-bms4815 lithium iron phosphate battery has the advantages of full protection, low fault, excellent safety performance, etc., and through a large number of experiments and facts, the protection effect of this method is significant.
Multiple core designs extend battery life
The myzr-bms4815 lithium iron phosphate battery protection system, which ensures the core technology, also carries many other design considerations.
For a long time, the service life of battery has been a problem in the industry. On the basis of ensuring safety, it is a challenge for lithium battery to continuously extend the service life of battery. The myzr-bms4815 lithium iron phosphate battery protection system adopts battery overcharge and over discharge protection, which greatly extends the service life of the battery. Its 48v-1.5ma ultra-low power consumption ensures a longer standby time than other systems.
Myzr-bms4815 lithium iron phosphate battery protection system adopts armcortex-m3stm32f103rct6 imported from ST company as the core control. The system has multiple sets of MOS tubes, which can withstand 10 times of the rated discharge current and has excellent heat dissipation performance. When the protection system of myzr-bms4815 lithium iron phosphate battery detects that the discharge current is over-current, it can react and protect in 250us as soon as possible. The system also has a flexible temperature monitoring function, which can be customized according to the user needs to access the temperature sensor for temperature monitoring and protection.
At the same time, the system also carries GPRS cloud communication and GPS positioning functions, which can flexibly manage the battery, track and locate the battery, and prevent the battery from being stolen. In addition, the protection system of myzr-bms4815 lithium iron phosphate battery also has a more humanized consideration. On the display mode, users can choose a variety of display modes, such as LED indication or LCD display, which is more convenient and quick to use.
According to the statistics of China Automobile Industry Association, in 2019, the production and sales volume of new energy vehicles increased by more than 30% year on year. The national subsidy policy, the instability of international oil price, environmental protection problems and many other reasons continue to promote the growth of new energy vehicle market. The successful research and development of mingyuanzhirui myzr-bms4815 lithium iron phosphate battery protection system will further improve the performance value of new energy vehicles, reduce the short board of battery problems, and increase the market share of new energy.
