POWER SYSTEM OF ELECTRIC VEHICLE, ELECTRIC VEHICLE COMPRISING THE SAME AND METHOD FOR HEATING BATTERY GROUP OF ELECTRIC VEHICLE

摘要

A power system of an electric vehicle, an electric vehicle comprising the same and a method for heating a battery group of the electric vehicle are provided. The power system comprises: a battery group; a battery heater connected with the battery group, in which the battery heater comprises an output power adjusting module configure to adjust a heating power of the battery heater; a battery management device connected with the battery group and the battery heater respectively, and configured to control the battery heater to heat the battery group in different heating modes, to control the output power adjusting module to adjust the heating power of the battery heater according to a temperature of the battery group and to control the battery heater to heat the battery group intermittently; a motor controller connected with a motor and an electric distribution box respectively; and an isolation inductor.