电动汽车电池管理系统与NTC温度传感器

Electric vehicle battery management system and NTC temperature sensor

Number of Views:30142022-04-29 14:30:18

An electric vehicle is a vehicle that is powered by on-board power supply and driven by a motor, and meets the requirements of road traffic and safety regulations. Electric vehicles are divided into three types: pure electric vehicles, hybrid electric vehicles, and fuel cell vehicles. At present, electric vehicles use lithium batteries as the power source, and generally multiple lithium batteries are used in superposition to meet the requirements.
As electric vehicle battery usage becomes more common, battery management becomes increasingly important. The electric vehicle battery management system (BMS) is an important link between the vehicle power battery and the electric vehicle. The BMS has the following functions:
1. Real-time monitoring of battery physical parameters;
2. Battery status estimation;
3. Online diagnosis and early warning;
4. Charge, discharge and precharge control;
5. Balance management and thermal management.
The electric vehicle battery management system performs high-precision and high-sensitivity temperature measurement through the NTC temperature sensor, which is convenient for accurate measurement of battery temperature. Effective management can protect the battery system and prolong the service life of the battery.

BMS uses the NTC temperature sensor to detect the temperature of the single battery of the lithium battery system separately, which is convenient to know the external temperature of each single battery in time, avoid the adverse effects caused by the local temperature being too high or too low, so as to fully connect the working temperature of the entire lithium battery system. Improve the accuracy of the test results and fully understand the battery operating temperature, which is conducive to the effective management of the lithium battery system by the entire battery management system, and plays a good protective role.

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