In the detection and management of new energy batteries, the battery management system (BMS) plays a vital role. As the "brain" of new energy vehicles, BMS is responsible for real-time monitoring, control and management of battery packs to ensure safe and stable operation of batteries and extend the battery life.

One of the core functions of BMS is to monitor the status of the battery in real time. Through various sensors installed in the battery pack, it can accurately measure key parameters such as battery voltage, current, temperature, etc., and transmit these data to the vehicle's central control system or related monitoring platform in real time. Car owners can check the battery status information at any time through the vehicle's display screen or mobile phone application, such as remaining power, health, charge and discharge status, etc., to understand the vehicle's operation status.

Based on real-time monitoring of the battery status, BMS also has fault diagnosis and early warning functions. When the battery is overcharged, over-discharged, overheated, short-circuited, or in other abnormal conditions, BMS can quickly detect the fault and send out an alarm signal in time to remind the owner to take appropriate measures. At the same time, BMS can also automatically take appropriate protective measures according to the severity of the fault, such as cutting off the charging and discharging circuit, reducing the battery output power, etc., to prevent the fault from further expanding and ensure the safety of the vehicle and personnel.

In addition to monitoring and protection functions, BMS can also balance the battery pack. Due to the differences in the manufacturing process of the single cells in the battery pack, and the inconsistent charge and discharge characteristics during use, the voltage and SOC of the single cells in the battery pack may be unbalanced. BMS can actively balance the single cells in the battery pack through the balancing circuit to ensure that the voltage and SOC of each single cell remain within a reasonable range, thereby improving the overall performance and service life of the battery pack.

In addition, BMS can also exchange information and work together with other systems of the vehicle. For example, it can reasonably control the charging and discharging power of the battery according to the driving status and power requirements of the vehicle, optimize the energy recovery strategy, and improve the energy efficiency and range of the vehicle. At the same time, BMS can also communicate with the charging pile to realize intelligent charging management and ensure the safety, speed and efficiency of the charging process.

With the continuous development of new energy vehicle technology, the BMS system is also constantly upgrading and improving. In the future, BMS will be more intelligent, precise and efficient, better able to adapt to the development needs of new energy vehicles, and provide more comprehensive and reliable support for the detection, management and maintenance of new energy batteries.