A power battery low temperature protection system and protection method thereof
A power battery, low temperature protection technology, applied in the direction of secondary batteries, circuits, electrical components, etc., can solve the problems of long charging time and insufficient output power, and achieve the effect of shortening charging time, improving power output capacity, and saving power
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[0047] This embodiment provides a low temperature protection method for a power battery system, wherein the system includes a temperature monitoring circuit and a heating module, such as Figure 4 , the method includes:
[0048] Step 201: Monitor the wake-up signal output by the temperature monitoring circuit 101, and send a heating instruction to the heating module 103 to control the heating module 103 to heat after the wake-up signal is obtained;
[0049] Step 202: After receiving the wake-up signal, send a sleep or disconnection command to the temperature monitoring circuit 101, and control the temperature monitoring circuit 101 to enter a sleep or disconnection state.
[0050] Through the method provided in this embodiment, when the ambient temperature of the battery is lower than the first threshold, the wake-up signal sent by the temperature monitoring circuit 101 will be received, and after the wake-up signal is obtained, a heating command will be sent to the heating mo...
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