Abstract:
A power battery device (100) includes: a battery tray (1) having a positioning member (11) provided on the upper surface thereof; and a plurality of battery modules (2) disposed on the battery tray (1) and arranged in at least two layers in an up-down direction, each battery module comprising: a housing (21) having a first positioning portion disposed on the upper surface of the housing (21) and a second positioning portion disposed on the lower surface of the housing (21); a battery disposed within the housing (21), the first positioning portion of the housing in a lower layer is matched with the second positioning portion of the housing in an upper layer, and the battery modules (2) in the lowermost layer of the battery modules are positioned by the positioning member (11).
Abstract:
A housing assembly (200) for a battery module (1000) includes a plurality of brackets (1) disposed side by side in the front-rear direction and connected by a snap, and each two adjacent brackets (1) defining a space for receiving the battery (100); a plurality of copper bars (2) disposed vertically on the brackets (1) and having a through-hole adapted for extending an electrode of the battery; and a plurality of insulating frames (3) disposed on the copper bars (2) to cover the electrodes of the batteries; wherein the insulating frame (3) is connected with the bracket (1) by a snap and has an extension direction as same as that of the copper bar (2). A battery module including the housing assembly is also provided.
Abstract:
A method for controlling a power battery is provided. The method includes: detecting a maximum temperature and a minimum temperature of the plurality of single cells, a plurality of first temperatures of positive electrodes and/or a plurality of second temperatures of negative electrodes, and a plurality of third temperatures of cores; determining whether the plurality of first temperatures and/or the plurality of second temperatures are within a first temperature range; determining whether the plurality of third temperatures are within a second temperature range; managing the power battery; and judging that a connection failure occurs in the power battery if one of the plurality of first temperatures and/or one of the plurality of second temperatures is not within the first temperature range; and determining a core related failure if the third temperature of a first single cell is not within the second temperature range. Further, a system for controlling a power battery is provided.
Abstract:
A steering power system for an electric vehicle and a method for controlling same are provided. The steering power system includes: a steering motor (M); a steering motor controller (10), configured to control the steering motor (M); a high voltage power battery (20), configured to output a first voltage; a low voltage storage battery (30), configured to output a second voltage; a buck DC-DC converter (40), configured to convert the first voltage into the second voltage for being supplied to the low voltage storage battery (30) when a high voltage system (70) works; and a boost DC-DC converter (50), configured to convert the second voltage into the first voltage. When the high voltage system (70) has an abnormal power failure, the boost DC-DC converter (50) converts the second voltage outputted from the low voltage storage battery into the first voltage for being supplied to the steering motor controller (10). The steering power system improves driving safety of the electric vehicle.
Abstract:
A power battery device (100) includes: a battery tray (1) having a positioning member (11) provided on the upper surface thereof; and a plurality of battery modules (2) disposed on the battery tray (1) and arranged in at least two layers in an up-down direction, each battery module comprising: a housing (21) having a first positioning portion disposed on the upper surface of the housing (21) and a second positioning portion disposed on the lower surface of the housing (21); a battery disposed within the housing (21), the first positioning portion of the housing in a lower layer is matched with the second positioning portion of the housing in an upper layer, and the battery modules (2) in the lowermost layer of the battery modules are positioned by the positioning member (11).
Abstract:
A housing assembly (200) for a battery module (1000) includes a plurality of brackets (1) disposed side by side in the front-rear direction and connected by a snap, and each two adjacent brackets (1) defining a space for receiving the battery (100); a plurality of copper bars (2) disposed vertically on the brackets (1) and having a through-hole adapted for extending an electrode of the battery; and a plurality of insulating frames (3) disposed on the copper bars (2) to cover the electrodes of the batteries; wherein the insulating frame (3) is connected with the bracket (1) by a snap and has an extension direction as same as that of the copper bar (2). A battery module including the housing assembly is also provided.
Abstract:
A power battery device includes: a battery tray having a positioning member provided on the upper surface thereof; and a plurality of battery modules disposed on the battery tray and arranged in at least two layers in an up-down direction, each battery module comprising: a housing having a first positioning portion disposed on the upper surface of the housing and a second positioning portion disposed on the lower surface of the housing; a battery disposed within the housing, the first positioning portion of the housing in a lower layer is matched with the second positioning portion of the housing in an upper layer, and the battery modules in the lowermost layer of the battery modules are positioned by the positioning member.
Abstract:
A housing assembly for a battery module includes a plurality of brackets disposed side by side in the front-rear direction and connected by a snap, and each two adjacent brackets defining a space for receiving the battery; a plurality of copper bars disposed vertically on the brackets and having a through-hole adapted for extending an electrode of the battery; and a plurality of insulating frames disposed on the copper bars to cover the electrodes of the batteries; wherein the insulating frame is connected with the bracket by a snap and has an extension direction as same as that of the copper bar. A battery module including the housing assembly is also provided.
Abstract:
A steering power system for an electric vehicle and a method for controlling same are provided. The steering power system includes: a steering motor; a steering motor controller, configured to control the steering motor; a high voltage power battery, configured to output a first voltage; a low voltage storage battery, configured to output a second voltage; a buck DC-DC converter, configured to convert the first voltage into the second voltage for being supplied to the low voltage storage battery when a high voltage system works; and a boost DC-DC converter, configured to convert the second voltage into the first voltage. When the high voltage system has an abnormal power failure, the boost DC-DC converter converts the second voltage outputted from the low voltage storage battery into the first voltage for being supplied to the steering motor controller.
Abstract:
A method for controlling a power battery is provided. The method includes: detecting a maximum temperature and a minimum temperature of the plurality of single cells, a plurality of first temperatures of positive electrodes and/or a plurality of second temperatures of negative electrodes, and a plurality of third temperatures of cores; determining whether the plurality of first temperatures and/or the plurality of second temperatures are within a first temperature range; determining whether the plurality of third temperatures are within a second temperature range; managing the power battery; and determining that a connection failure occurs in the power battery if one of the plurality of first temperatures and/or one of the plurality of second temperatures is not within the first temperature range; and determining a core related failure if the third temperature of a first single cell is not within the second temperature range. Further, a system for controlling a power battery is provided.