Electric vehicle power system, electric vehicle and power battery charging method

摘要

An electric vehicle power system, an electric vehicle and a method for charging a power battery are provided. The power system includes a power battery (10), a charge / discharge socket (20), a bidirectional DC-DC module (30), a drive control switch (40), a bidirectional DC-AC module (50), a motor (M), a motor control switch (60), a charge / discharge control module (70), a battery manager (108), and a drive control switch (40) to control the power system entering a charge / discharge mode, When the motor control switch (60) and the charge / discharge control module (70) are controlled and the temperature of the power supply battery (10) is lower than a predetermined temperature, the power supply battery (10) is heated to heat the power supply battery (10). And a control module (80) configured to control charging and discharging in a pulse mode. [Selection] Figure 1