Electric automobile power management system based on single chip microcomputer

The invention relates to an electric automobile power management system based on a single chip microcomputer. The power management system is characterized in that the single chip microcomputer, a data acquisition module, a charging and discharging circuit, a battery pack module, a touch screen and a protection circuit are included; the data acquisition module comprises a current acquisition part, a voltage acquisition part and a temperature acquisition part; the battery pack module comprises a battery grouping circuit and an isolating amplifier circuit; the single chip microcomputer is in two-way connection with the touch screen, the current acquisition part, the voltage acquisition part and the temperature acquisition part simultaneously, the output end of the single chip microcomputer is connected with the input end of the protection circuit and the input end of the charging and discharging circuit, the output end of the protection circuit and the output end of the charging and discharging circuit are connected with one end of the battery grouping circuit, and the other end of the battery grouping circuit is connected with the input end of the current acquisition part, the input end of the voltage acquisition part and the input end of the temperature acquisition part simultaneously through the isolating amplifier circuit.