Invention Grant
US09463711B2 Power system of electric vehicle, electric vehicle comprising the same and method for heating battery group of electric vehicle 有权
电动汽车电力系统,电动车辆及电动汽车电池组加热方法

Power system of electric vehicle, electric vehicle comprising the same and method for heating battery group of electric vehicle
Abstract:
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, in which the battery heater comprises a output power adjusting module configure to adjust a heating power of the battery heater by adjusting a charge current and/or a discharge current; a battery management device configured to control the output power adjusting module to adjust the heating power of the battery heater to heat the battery group according to a temperature of the battery group when the temperature of the battery group is lower than a first heating threshold and a residual electric quantity of the battery group is larger than a parking electric quantity threshold; a motor controller connected with a motor and an electric distribution box respectively; and an isolation inductor.
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