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 thermal management system (1), comprising an engine cooler (100), an exhaust gas recirculation system cooler (200), a thermostat(300), and a radiator (400). The engine cooler (100) is provided with a liquid inlet (110) and a liquid outlet (120); one end of the exhaust gas recirculation system cooler (200) is in communication with the liquid inlet (110) and the other end thereof is in communication with the liquid outlet (120); the exhaust gas recirculation system cooler (200) is connected to the engine cooler (100) in series; the thermostat (300) is connected to the radiator (400) in series and is connected to the exhaust gas recirculation system cooler (200) in parallel; the thermostat (300) is in communication with the liquid inlet (110); and the radiator (400) is in communication with the liquid outlet (120), such that the thermal management system (1) has low energy consumption, low engine oil consumption, and a high engine warming speed. The present invention further relates to a vehicle (2).
Abstract:
A temperature regulating system of an in-vehicle battery is disclosed in this application. The system includes: a heat exchanger; an in-vehicle air conditioner, where the in-vehicle air conditioner is provided with an air conditioner vent, a first air duct is formed between the air conditioner vent and the heat exchanger, a semiconductor heat exchange module, where a second air duct is formed between a cooling end of the semiconductor heat exchange module and the first fan, and a third air duct is formed between the cooling end of the semiconductor heat exchange module and a compartment; a battery thermal management module, where the battery thermal management module is connected to the heat exchanger to form a heat exchange flow path; and a controller, connected to the semiconductor heat exchange module, the battery thermal management module, and the in-vehicle air conditioner. The system can regulate the temperature when the temperature of the in-vehicle battery is excessively high, so that the temperature of the in-vehicle battery is maintained in a preset range, thereby avoiding the situation that the performance of the in-vehicle battery is affected by the excessively high temperature.
Abstract:
A power system of an electric vehicle, an electric vehicle including the power system and a method for heating a battery group of the electric vehicle are provided. The power system of the electric vehicle includes: a battery group; a battery heater connected with the battery group; a battery management device connected with the battery group and the battery heater respectively, and configured to control the battery heater (102) to heat the battery group intermittently when a temperature of the battery group is lower than a first temperature threshold and a residual electric quantity of the battery group is larger than an electric quantity threshold; an electric distribution box; a motor; a motor controller connected with the motor and the electric distribution box respectively; and an isolation inductor.
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.
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.
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).