CN113937385B - Battery system, control method and control device for battery system, and vehicle - Google Patents
Battery system, control method and control device for battery system, and vehicle Download PDFInfo
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- CN113937385B CN113937385B CN202111015190.0A CN202111015190A CN113937385B CN 113937385 B CN113937385 B CN 113937385B CN 202111015190 A CN202111015190 A CN 202111015190A CN 113937385 B CN113937385 B CN 113937385B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000011084 recovery Methods 0.000 claims abstract description 15
- 238000004590 computer program Methods 0.000 claims description 10
- 230000007613 environmental effect Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000036760 body temperature Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The embodiment of the application discloses a battery system, a control method, a control device and a vehicle of the battery system, wherein the battery system comprises: a plurality of battery modules; a temperature regulation assembly, the temperature regulation assembly comprising: the device comprises a medium outlet, an inlet pipeline, an outlet pipeline and a medium recovery port, 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 a liquid inlet end of the battery module. The battery system can reduce temperature difference among different battery modules, improve consistency of the temperatures of the battery system, ensure that the performance of the battery system is balanced, and improve the performance of the battery system.
Description
Technical Field
The embodiment of the application relates to the technical field of new energy automobiles, in particular to a battery system, a control method and a control device of the battery system and a vehicle.
Background
At present, the temperature of the power battery is regulated in the industry mainly by adopting a water cooling mode, and the heat of the high-temperature battery is taken away or the low-temperature battery is heated by introducing cooling liquid into a liquid cooling water pipe or a liquid cooling plate runner at the bottom of the battery module in a heat conduction mode. In the current water cooling scheme, the whole battery cooling system is provided with a water inlet and a water outlet, and the cooling (heating) flow of the modules in the battery pack is reasonably distributed by controlling the cross-sectional area of the flow channel, so that the temperature consistency of different modules in the battery pack is maintained as much as possible. Although the cooling (heating) power and the flow rate are balanced, the method still has the problems that the temperature difference between the farthest runner travel and the nearest runner travel is large, and the temperature difference between the battery pack center module and the battery pack peripheral module is large, so that the consistency of each battery is affected.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art or related art.
To this end, a first aspect of the present invention provides a battery system.
A second aspect of the present invention provides a control method of a battery system.
A third aspect of the invention provides a control device of a battery system.
A fourth aspect of the invention provides a vehicle.
In view of this, there is provided a battery system according to a first aspect of an embodiment of the present application, including:
a plurality of battery modules;
a temperature regulation assembly, the temperature regulation assembly comprising: the device comprises a medium outlet, an inlet pipeline, an outlet pipeline and a medium recovery port, 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 a liquid inlet end of the battery module.
In a possible implementation manner, each battery module comprises a medium channel, wherein one end of the medium channel is the liquid outlet end, and the other end of the medium channel is the liquid inlet end;
the medium channel comprises a water pipe and/or a cold liquid plate runner.
In a possible embodiment, the plurality of inlet pipes is provided, and each of the battery modules is connected to at least one of the inlet pipes.
In a possible embodiment, the plurality of outlet pipes are provided, and each battery module is communicated with at least one outlet pipe;
at least some of the outlet pipes are communicated with the inlet pipes, the battery modules form a battery pack, and at least some of the outlet pipes and at least some of the inlet pipes are arranged on the periphery of the battery pack.
In a possible embodiment, the temperature adjustment assembly further comprises:
and the heat exchanger is communicated with the medium outlet and the medium recovery port.
According to a second aspect of embodiments of the present application, a control method of a battery system is provided, which is used in the battery system according to any one of the foregoing technical solutions, and the control method includes:
responding to a battery body temperature adjustment command;
the first valve port of the control valve is communicated with the third valve port, so that the medium in the temperature adjusting assembly flows through the battery module.
In a possible embodiment, the control method further includes:
collecting temperature information of each battery module;
taking the battery module with the difference value between the temperature information and the preset temperature being larger than a first threshold value as a target to regulate the battery module;
and increasing the conduction opening of the first valve port and the third valve port of the control valve corresponding to the target regulation battery module, and increasing the conduction opening of the first valve port and the second valve port of the control valve corresponding to other battery modules except the target regulation battery module.
In a possible embodiment, the control method further includes:
acquiring environmental temperature information of a battery system;
when the environmental temperature information is lower than a first threshold value or the environmental temperature information is higher than a second threshold value, the first valve ports and the second valve ports of all the control valves are controlled to be conducted, so that a medium output by the temperature regulating assembly flows through the outer side of a battery pack formed by a plurality of battery modules;
wherein the value of the first threshold is lower than the second threshold.
According to a third aspect of the embodiments of the present application, there is provided a control device of a battery system, including:
a memory storing a computer program;
a processor executing the computer program;
the processor implements the control method of the battery system according to any one of the above technical schemes when executing the computer program.
According to a fourth aspect of the embodiments of the present application, there is provided a vehicle, including:
the battery system according to any one of the above aspects; and
the control device of the battery system according to the above-described aspect.
Compared with the prior art, the invention at least comprises the following beneficial effects: the battery system that this embodiment provided has included a plurality of battery module, temperature control adjusting part and control valve, temperature control adjusting part is used for exporting the medium to a plurality of battery module, when battery module temperature is lower, temperature adjusting part heats the medium of filling in temperature adjusting part, then carry the higher medium of temperature to battery module in order to heat up for the battery module again, when battery module's temperature is higher, temperature adjusting part reduces the medium of filling in temperature adjusting part and is the temperature, the medium under the low temperature state is carried to battery module and is cooled down for the battery module. The battery system that this embodiment provided has included medium export, the entry pipeline, export pipeline and medium recovery mouth, and the first valve port of control valve communicates in the entry pipeline, the second valve port communicates in the export pipeline, the third valve port communicates in battery module's feed liquor end, so set up through control first valve port and second valve port or third valve port intercommunication, can control the flow direction of medium in battery system, can selectively control the medium and flow through battery module, can control the medium of temperature regulation preferentially pass through the great battery module of difference in temperature, do benefit to the temperature difference between the different battery modules of reduction, improve battery system's uniformity of temperature, make battery system's performance balanced, improve battery system's performance. The opening between the first valve port, the second valve port and the third valve port can be controlled, the flow of the medium into the battery module can be controlled, the battery module at the far end of the battery system can circulate more medium, the battery module at the near end of the battery system can circulate less medium, the temperature difference between different battery modules can be reduced, the consistency of the temperature of the battery system can be improved, the performance of the battery system can be balanced, and the performance of the battery system can be improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic structural view of a battery system according to an embodiment provided herein.
FIG. 2 is a schematic step flow diagram of a method of controlling a battery system according to one embodiment provided herein;
fig. 3 is a block diagram of a control device of a battery system according to an embodiment of the present application.
The correspondence between the reference numerals and the component names in fig. 1 is:
100 battery modules, 200 temperature adjusting components and 300 control valves;
a medium outlet 201, a medium inlet 202, a medium outlet 203, and a medium recovery port 204;
a first valve port, B second valve port, C third valve port.
Detailed Description
In order to better understand the technical solutions described above, the technical solutions of the embodiments of the present application are described in detail below through the accompanying drawings and the specific embodiments, and it should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of the present application, and not limit the technical solutions of the present application, and the embodiments of the present application and the technical features in the embodiments of the present application may be combined with each other without conflict.
As shown in fig. 1, according to a first aspect of an embodiment of the present application, there is provided a battery system including: a plurality of battery modules 100; temperature adjustment assembly 200, temperature adjustment assembly 200 includes: a medium outlet 201, an inlet pipeline 202, an outlet pipeline 203 and a medium recovery port 204, wherein the inlet pipeline 202 is communicated with the medium outlet 201, the outlet pipeline 203 is communicated with the medium recovery port 204, and the liquid outlet end of each battery module 100 is communicated with the outlet pipeline 203; in the control valve 300, each battery module 100 is communicated with at least one control valve 300, a first valve port A of the control valve 300 is communicated with the inlet pipeline 202, a second valve port B of the control valve 300 is communicated with the outlet pipeline 203, and a third valve port C of the control valve is communicated with the liquid inlet end of the battery module 100.
The battery system provided by the embodiment of the application includes a plurality of battery modules 100, a temperature control adjusting assembly and a control valve 300, wherein the temperature control adjusting assembly is used for outputting media to the plurality of battery modules 100, when the temperature of the battery modules 100 is lower, the temperature adjusting assembly 200 heats the media filled in the temperature adjusting assembly 200, then the media with higher temperature is conveyed to the battery modules 100 to heat the battery modules 100, when the temperature of the battery modules 100 is higher, the temperature adjusting assembly 200 reduces the media filled in the temperature adjusting assembly 200 to be the temperature, and the media in a low-temperature state is conveyed to the battery modules 100 to cool the battery modules 100. The battery system provided by the embodiment of the application comprises a medium outlet 201, an inlet pipeline 202, an outlet pipeline 203 and a medium recovery port 204, wherein a first valve port A of a control valve 300 is communicated with the inlet pipeline 202, a second valve port B is communicated with the outlet pipeline 203, a third valve port C is communicated with a liquid inlet end of a battery module 100, the flow direction of a medium in the battery system can be controlled by controlling the communication between the first valve port A and the second valve port B or between the first valve port C and the third valve port C, the medium can be selectively controlled to flow through the battery module 100, the medium with temperature regulation can be controlled to preferentially pass through the battery module 100 with larger temperature difference, the temperature difference among different battery modules 100 is reduced, the consistency of the battery system temperature is improved, the performance of the battery system is balanced, and the performance of the battery system is improved. The opening degree between the first valve port A and the second valve port B and the opening degree between the third valve port C can be controlled, the flow rate of the medium into the battery module 100 can be controlled, the battery module 100 positioned at the far end of the battery system can circulate more medium, the battery module 100 positioned at the near end of the battery system can circulate less medium, the temperature difference between different battery modules 100 can be reduced, the consistency of the temperature of the battery system can be improved, the performance of the battery system can be balanced, and the performance of the battery system can be improved.
It can be understood that each battery module 100 is connected to one control valve 300, the first valve port a of each control valve 300 is connected to the inlet pipe 202, the second valve port B is connected to the outlet pipe 203, the third valve port C is connected to the liquid inlet of the battery module 100, when the first valve port a and the second valve port B of the control valve 300 are connected, the medium in the temperature adjusting module will not flow through the battery module 100 corresponding to the control valve 300, and when the first valve port a and the third valve port C are connected, the medium in the temperature adjusting module will flow through the battery module 100 corresponding to the control valve 300. Based on the same principle, when the opening between the first valve port a and the third valve port C is increased, more medium can flow through the battery module 100 corresponding to the control valve 300, and when the opening between the first valve port a and the third valve port C is decreased, the amount of medium supplied into the battery module 100 can be decreased.
It will be appreciated that the battery module at the far end is a battery module 100 that is far from the medium outlet 201 of the temperature adjusting assembly 200 and has a long medium flowing through the pipe, and the battery module at the near end is a battery module 100 that is close to the temperature adjusting assembly 200 and can be supplied directly or at a short distance.
In some examples, each battery module 100 includes a media channel with one end being a liquid outlet end and the other end being a liquid inlet end; the medium channel comprises a water pipe and/or a cold liquid plate flow channel.
Each battery module 100 includes a medium channel, when the medium of the temperature adjusting module is supplied to the battery module 100, the medium can circulate along the medium channel, the medium can exchange heat with the body of the battery module to adjust the temperature of the battery module 100, after the medium completes the heat exchange, the medium can be discharged out of the battery module 100 through the liquid outlet end of the medium channel, the medium discharged out of the battery module can enter other battery modules 100 to continue the heat exchange and can also return to the medium recovery port 204 of the temperature adjusting assembly 200 to be reused.
The medium channel comprises a water pipe and/or a cold liquid plate runner, and the circulating flow of the medium is facilitated through the arrangement of the water pipe and/or the cold liquid plate runner.
In some examples, the inlet duct 202 is a plurality, and each battery module 100 communicates with at least one inlet duct 202.
The plurality of inlet pipes 202 are connected to at least one inlet pipe 202 of each battery module 100, so that the medium output by the temperature adjusting assembly 200 can be conveniently input into each battery module 100, and the temperature of the battery module 100 can be conveniently and rapidly adjusted.
In some examples, the outlet duct 203 is a plurality, each battery module 100 being in communication with at least one outlet duct 203; at least a part of the plurality of outlet pipes 203 is communicated with the inlet pipe 202, the plurality of battery modules 100 form a battery pack, and at least a part of the plurality of outlet pipes 203 and at least a part of the plurality of inlet pipes 202 are arranged at the circumferential side of the battery pack.
The plurality of outlet pipelines 203 are provided, and each battery module 100 is communicated with at least one outlet pipeline 203, so that the medium is discharged through the battery module 100, and the medium can be recycled.
At least part of outlet pipelines 203 in a plurality of outlet pipelines 203 are communicated with inlet pipeline 202, so that pipelines formed by communicating outlet pipelines 203 and inlet pipelines 202 of part of battery modules 100 can be used as inlet pipelines 202 of other battery modules 100, the number of the arranged pipelines can be reduced, and the layout of the pipelines is more reasonable and convenient.
At least part of the outlet pipes 203 of the plurality of outlet pipes 203 and at least part of the inlet pipes 202 of the plurality of inlet pipes 202 are arranged on the periphery of the battery pack, and the arrangement is such that the periphery of the battery pack formed by the plurality of battery modules 100 is provided with a pipe capable of circulating a medium, when the temperature of the battery system is extremely low or extremely high, the medium can be controlled not to flow through the battery modules 100, but to circulate on the periphery of the battery pack, the temperature of the periphery of the battery body is preferentially regulated, and the working stability of the battery body is ensured.
In some examples, the temperature regulation assembly 200 further comprises: and the heat exchanger is communicated with the medium outlet 201 and the medium recovery port 204.
The temperature adjusting assembly 200 further comprises a heat exchanger, the medium filled in the temperature adjusting assembly 200 can be heated or cooled through the heat exchanger, the medium with high temperature can be output when the battery system needs to be heated, and the medium with low temperature can be output when the battery system needs to be cooled, so that the temperature control of the battery system is more reliable.
In some examples, the temperature adjustment assembly 200 may further include a drive disposed within the heat exchanger for driving the flow of media filled within the temperature adjustment assembly 200.
As shown in fig. 2, a second aspect of the embodiments of the present application provides a control method of a battery system, for a battery system of any one of the above-mentioned technical solutions, where the control method includes:
step 101: in response to a battery body temperature regulation command. It can be appreciated that the battery body temperature adjustment command may be issued by a user, or may be actively issued when the vehicle-mounted temperature sensor detects that the battery system temperature deviates from a preset temperature.
Step 102: the first valve port of the control valve is communicated with the third valve port so that the medium in the temperature adjusting assembly flows through the battery module. The first valve port and the third valve port of the control valve are controlled to be communicated, medium in the temperature adjusting component can flow through the battery module, and the medium can exchange heat with the battery module to adjust the temperature of the battery module, so that the temperature of the battery system can be close to the expected temperature.
It is understood that each battery module is communicated with a control valve, the first valve port of each control valve is communicated with the inlet pipeline, the second valve port is communicated with the outlet pipeline, the third valve port is communicated with the liquid inlet end of the battery module, when the first valve port and the second valve port of the control valve are communicated, a medium in the temperature regulation module can not flow through the battery module corresponding to the control valve, and when the first valve port and the second valve port are communicated, the medium in the temperature regulation module can flow through the battery module corresponding to the control valve. Based on the same principle, when the opening between the first valve port and the third valve port is increased, more medium can flow through the battery module corresponding to the control valve, and when the opening between the first valve port and the third valve port is reduced, the amount of medium supplied into the battery module can be reduced.
It can be understood that the battery module at the far end is a battery module far away from the medium outlet of the temperature adjusting assembly, the medium flows through the longer battery module of the pipeline, and the battery module at the near end is a battery module close to the temperature adjusting assembly, and the medium can be directly or short-distance supplied.
In some examples, the control method further comprises: collecting temperature information of each battery module; taking the battery module with the difference value between the temperature information and the preset temperature being larger than a first threshold value as a target to regulate the battery module; and increasing the conduction opening of the first valve port and the third valve port of the control valve corresponding to the target regulation battery module, and increasing the conduction opening of the first valve port and the second valve port of the control valve corresponding to other battery modules except the target regulation battery module.
According to the control method provided by the embodiment of the invention, the temperature information of each battery module can be acquired, when the difference between the temperature information of part of the battery modules in the plurality of battery modules and the preset temperature is larger than the first threshold value, the temperature difference of the part of the battery modules is considered to be larger, the consistency of the plurality of battery modules of the battery system can be reduced due to the temperature of the part of the battery modules, the conduction opening of the first valve port and the third valve port of the control valve corresponding to the target regulation battery module is controlled to be increased, the conduction opening of the first valve port and the second valve port of the control valve corresponding to other battery modules except the target regulation battery module is increased, more medium can flow into the target regulation battery module, and the temperature consistency of the battery system can be higher.
In some examples, the control method further comprises: acquiring environmental temperature information of a battery system; under the condition that the ambient temperature information is lower than a second threshold value or the ambient temperature information is higher than a third threshold value, the first valve ports and the second valve ports of all the control valves are controlled to be conducted, so that a medium output by the temperature regulating assembly flows through the outer side of a battery pack formed by a plurality of battery modules; wherein the value of the second threshold is lower than the third threshold.
According to the control method, the environmental temperature information of the battery system can be collected, when the environmental temperature information is lower than the second threshold value or the environmental temperature information is higher than the third threshold value, the current battery system can be considered to be in an extreme temperature environment, the temperature of the battery system can be too high or too low, in this case, the first valve ports and the second valve ports of all the control valves can be controlled to be conducted, media output through the temperature adjusting assembly cannot flow into the battery module, but flow on the periphery of the battery pack formed by the battery modules preferentially, and therefore the overall temperature of the battery pack can be adjusted timely, particularly the temperature on the outer side of the battery pack can be adjusted timely, and safe operation of the battery pack can be guaranteed.
As shown in fig. 3, a third aspect according to an embodiment of the present application proposes a control device of a battery system, including: a memory 401 storing a computer program; a processor 402 executing a computer program; the processor 402 implements the control method of the battery system according to any one of the above-described aspects when executing the computer program.
In the control device provided in the embodiment of the present application, the processor implements the control method of the battery system according to any one of the above-mentioned embodiments when executing the computer program, so that the control device of the battery system has all the beneficial effects of the control method of the battery system according to any one of the above-mentioned embodiments, which are not described herein.
According to a fourth aspect of embodiments of the present application, there is provided a vehicle including: the battery system of any one of the above aspects; and a control device of the battery system according to the above-described aspect.
The vehicle provided in the embodiment of the present application includes the battery system and the control device for the battery system according to any one of the foregoing embodiments, so that the vehicle has all the intended effects of the battery system and the control device for the battery system according to any one of the foregoing embodiments, and will not be described in detail herein.
In some examples, the vehicle further includes a BMS system (Battery management system) communicatively coupled to the control valves of the battery system, which can detect and record each battery module temperature, water inlet and outlet temperatures, flow, each battery module status, etc. When the BMS system can adjust the opening direction and the opening degree of the control valve based on the temperature detection result of each battery module, the consistency of the temperature of the battery system is improved, the performance of the battery system is balanced, and the performance of the battery system is improved.
In the present invention, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A battery system, comprising:
a plurality of battery modules;
a temperature regulation assembly, the temperature regulation assembly comprising: the device comprises a medium outlet, an inlet pipeline, an outlet pipeline and a medium recovery port, 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;
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 a liquid inlet end of the battery module;
the plurality of inlet pipelines are arranged, and each battery module is communicated with at least one inlet pipeline;
the plurality of outlet pipelines are arranged, and each battery module is communicated with at least one outlet pipeline;
at least some of the outlet pipes are communicated with the inlet pipes, the battery modules form a battery pack, and at least some of the outlet pipes and at least some of the inlet pipes are arranged on the periphery of the battery pack;
the inlet pipelines are arranged between two adjacent battery modules, and the inlet pipelines between two adjacent battery modules are communicated with the other inlet pipeline.
2. The battery system of claim 1, wherein the battery system comprises a battery module,
each battery module comprises a medium channel, wherein one end of the medium channel is the liquid outlet end, and the other end of the medium channel is the liquid inlet end;
the medium channel comprises a water pipe and/or a cold liquid plate runner.
3. The battery system of claim 1, wherein the temperature regulation assembly further comprises:
and the heat exchanger is communicated with the medium outlet and the medium recovery port.
4. A control method of a battery system, characterized by being used for controlling the battery system according to any one of claims 1 to 3, the control method comprising:
responding to a battery body temperature adjustment command;
the first valve port of the control valve is communicated with the third valve port, so that the medium in the temperature adjusting assembly flows through the battery module.
5. The control method according to claim 4, characterized by further comprising:
collecting temperature information of each battery module;
taking the battery module with the difference value between the temperature information and the preset temperature being larger than a first threshold value as a target to regulate the battery module;
and increasing the conduction opening of the first valve port and the third valve port of the control valve corresponding to the target regulation battery module, and increasing the conduction opening of the first valve port and the second valve port of the control valve corresponding to other battery modules except the target regulation battery module.
6. The control method according to claim 5, characterized by further comprising:
acquiring environmental temperature information of a battery system;
when the environmental temperature information is lower than a second threshold value or the environmental temperature information is higher than a third threshold value, controlling the first valve ports and the second valve ports of all the control valves to be conducted, so that a medium output by the temperature regulating assembly flows through the outer side of a battery pack formed by a plurality of battery modules;
wherein the value of the second threshold is lower than the third threshold.
7. A control device of a battery system, characterized by comprising:
a memory storing a computer program;
a processor executing the computer program;
wherein the processor, when executing the computer program, implements the control method of the battery system according to any one of claims 4 to 6.
8. A vehicle, characterized by comprising:
the battery system according to any one of claims 1 to 3; and
the control device of a battery system according to claim 7.
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| CN202111015190.0A CN113937385B (en) | 2021-08-31 | 2021-08-31 | Battery system, control method and control device for battery system, and vehicle |
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| CN114614146A (en) * | 2022-03-16 | 2022-06-10 | 东风汽车集团股份有限公司 | Temperature equalizing system and temperature equalizing control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206802377U (en) * | 2017-01-23 | 2017-12-26 | 威马汽车技术有限公司 | Commutator and battery bag heat management system |
| CN212874601U (en) * | 2020-09-30 | 2021-04-02 | 蜂巢能源科技有限公司 | Liquid cooling device of battery pack, battery pack and vehicle |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206802377U (en) * | 2017-01-23 | 2017-12-26 | 威马汽车技术有限公司 | Commutator and battery bag heat management system |
| CN212874601U (en) * | 2020-09-30 | 2021-04-02 | 蜂巢能源科技有限公司 | Liquid cooling device of battery pack, battery pack and vehicle |
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