The main functions of current sensors for new energy vehicles include the following:
1. Battery management: The current sensor can collect real-time data on the voltage, temperature, and charging/discharging current of each battery in the power battery pack, and monitor the total voltage of the battery pack. These data are crucial for precise management of battery energy, preventing overcharging or overdischarging of the battery, thereby improving its efficiency and lifespan.
2. Motor drive control: In the motor drive control system of new energy vehicles, current sensors are used to detect the charging and discharging current of the motor, achieve real-time data sampling of the current, and perform closed-loop control. This helps ensure that the motor operates in the required direction, speed, torque, and response time, thereby improving the operational efficiency and stability of the motor.
3. Safety protection: Current sensors also have safety protection functions in new energy vehicles. For example, when abnormal current occurs in the battery pack, high-precision current sensors can quickly respond and issue warning signals, triggering protection mechanisms to prevent damage to the battery pack or safety accidents. At the same time, current sensors can also provide overcurrent protection for AC current signals, achieve switch output, and further ensure the safe operation of new energy vehicles.