公开(公告)号：EP2853002A1

公开(公告)日：2015-04-01

申请号：EP13793972.4

申请日：2013-05-22

Applicant: BYD Company Limited

Inventor： WU, Xingchi ,  WANG, Hongjun ,  XIE, Shibin

IPC: H01M10/50 ,  B60L11/18

CPC classification number: B60L11/1875 ,  B60L15/20 ,  H01M10/613 ,  H01M10/625 ,  H01M10/633 ,  H01M10/637 ,  Y02T10/7005 ,  Y02T10/7011 ,  Y02T10/705 ,  Y02T10/7258

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 (101), a battery heater (102), in which the battery heater (102) comprises a output power adjusting module configure to adjust a heating power of the battery heater (102) by adjusting a charge current and/or a discharge current, a battery management device (103) configured to control the output power adjusting module to adjust the heating power of the battery heater (102) to heat the battery group (101) according to a temperature of the battery group (101) when the temperature of the battery group (101) 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 (106) connected with a motor (105) and an electric distribution box (104) respectively, and an isolation inductor (L2).

Abstract translation: 提供了电动车辆的电力系统，包括该电动车辆的电动车辆以及用于加热电动车辆的电池组的方法。 该电源系统包括电池组（101），电池加热器（102），电池加热器（102）包括输出功率调节模块，该输出功率调节模块被配置为通过调节充电电流来调节电池加热器（102）的加热功率 和/或放电电流;电池管理装置（103），被配置为控制输出功率调节模块以根据电池组的温度调节电池加热器（102）的加热功率以加热电池组（101） 当所述电池组的温度低于第一加热阈值，且所述电池组的剩余电量大于停车电量阈值时，启动所述电池组; 与电动机105和配电箱104分别连接的电动机控制器106和隔离电感器L2。