Battery system, control method of the battery system, control device, and vehicle

Abstract

The embodiment of the invention discloses a battery system, a control method of the battery system, a control device and a vehicle. The battery system comprises a plurality of battery modules, a temperature adjusting assembly which comprises a medium outlet, an inlet pipeline, an outlet pipeline and a medium recovery port, and a control valve, wherein the inlet pipeline is communicated with the medium outlet, the outlet pipeline is communicated with the medium recovery port, and the liquid outlet end of each battery module is communicated with the outlet pipeline; and each battery module is communicated with at least one control valve, a first valve port of the control valve is communicated with the inlet pipeline, a second valve port of the control valve is communicated with the outlet pipeline, and a third valve port of the control valve is communicated with the liquid inlet end of the battery module. According to the battery system, the temperature difference between different battery modules can be reduced, the temperature consistency of the battery system is improved, the performance of the battery system is balanced, and the performance of the battery system is improved.

Description

technical field [0001] The embodiments of the present application relate to the technical field of new energy vehicles, and in particular to a battery system, a battery system control method, a control device, and a vehicle. Background technique [0002] At present, the temperature adjustment of power batteries in the industry mainly adopts water-cooling method. By passing the cooling liquid into the liquid-cooled water pipe or the liquid-cooled plate flow channel at the bottom of the battery module, the heat of the high-temperature battery is taken away by heat conduction or the heat of the low-temperature battery is transferred. for heating. In the current water cooling scheme, the entire battery cooling system has a water inlet and a water outlet. By controlling the cross-sectional area of ​​the flow channel, the cooling (heating) flow of the modules in the pack can be reasonably distributed, so as to maintain the power of different modules in the battery pack as much as ...

AI Technical Summary

Problems solved by technology

Although this type of method has balanced the cooling (heating) power and flow rate, there are still problems such as a large temperature difference between the farthest runner stroke and the nearest runner stroke, and the large temperature difference between the battery pack center module and the battery pack peripheral modules. , thus affecting the consistency of each cell

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