CN117656942A - Charging and cooling control method and thermal management system for electric mine card and electric mine card - Google Patents
Charging and cooling control method and thermal management system for electric mine card and electric mine card Download PDFInfo
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- CN117656942A CN117656942A CN202311678439.5A CN202311678439A CN117656942A CN 117656942 A CN117656942 A CN 117656942A CN 202311678439 A CN202311678439 A CN 202311678439A CN 117656942 A CN117656942 A CN 117656942A
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- 238000001816 cooling Methods 0.000 title claims abstract description 325
- 238000000034 method Methods 0.000 title claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 181
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 239000000110 cooling liquid Substances 0.000 claims description 125
- 238000003860 storage Methods 0.000 claims description 38
- 238000005065 mining Methods 0.000 claims description 30
- 238000004590 computer program Methods 0.000 claims description 20
- 230000008569 process Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 10
- 239000002826 coolant Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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- 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
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application provides a charging and cooling control method of an electric mine card, a thermal management system and the electric mine card. The electric ore card comprises a battery system and a liquid cooling system, wherein the liquid cooling system comprises a first working mode and a second working mode; the charging and cooling control method of the electric mine card comprises the following steps: when the battery system is in a charging state, acquiring the cell temperature and the water inlet temperature of the battery system; when the temperature of the battery core is higher than the target temperature, the liquid cooling system is controlled to be started, the liquid cooling system is controlled to be in a first working mode, when the temperature of the water inlet is lower than a first preset temperature, the liquid cooling system is controlled to be switched to the first working mode, and when the temperature of the water inlet is higher than a second preset temperature, the liquid cooling system is controlled to be switched to the second working mode, and the first preset temperature is lower than the second preset temperature; and when the temperature of the battery cell is less than or equal to the target temperature, controlling the liquid cooling system to be shut down. The method and the device can improve the charging reliability of the electric mine card battery.
Description
Technical Field
The application relates to the technical field of charging and cooling, in particular to a charging and cooling control method of an electric mine card, a thermal management system and the electric mine card.
Background
The mining truck (abbreviated as mine truck) is a heavy dump truck for finishing the tasks of rock earthwork stripping and ore transportation in the surface mine. Along with the continuous development of economy, the demand of the ore cards is continuously increased, and the ore cards are continuously updated due to the requirements of economy and environmental protection.
In order to meet the environmental requirements, the applicant has developed an electric mining card that works from pure electric drives. The battery system in the electric mine card is used as a core driving part of the electric mine card, and the cooling and the temperature reduction in the charging process are important. The battery system charges in a reasonable temperature range, so that the charging efficiency is improved, and the battery is prevented from being damaged.
Currently, most mining trucks are driven by fuel, and the driving core of the electric mining truck is a battery system. The cooling strategy of the existing mine card is mostly to cool high-power operation mechanisms such as an engine, a starter and the like. Most of the prior art mining card cooling strategies are not suitable for charging and cooling of the electric mining card battery system because the corresponding cooling strategy is adopted by combining the working temperature and the working power of the engine, and the battery system does not need to consider the power in the charging process. Based on the above, the charging cooling control method of the electric mine card is provided, so that the charging stability of a battery system of the electric mine card is improved, and the working reliability of the electric mine card is improved.
Disclosure of Invention
The embodiment of the application provides a charging and cooling control method of an electric mine card, a thermal management system and the electric mine card, so as to improve the charging stability of a battery system of the electric mine card and improve the working reliability of the electric mine card.
In a first aspect, an embodiment of the present application provides a charging and cooling control method for an electric mine card, where the electric mine card includes a battery system and a liquid cooling system, the battery system includes a battery water tank, the liquid cooling system includes a cooling liquid storage tank, a cooling liquid loop, and a battery cooling loop, the cooling liquid loop is connected with the cooling liquid storage tank and the battery cooling loop, the battery cooling loop is connected with the battery water tank, the cooling liquid loop is used for circulating cooling liquid in the cooling liquid water tank into the battery cooling loop, and the battery cooling loop is used for cooling the battery water tank;
the charge cooling control method includes:
when the battery system is in a charging state, acquiring the cell temperature and the water inlet temperature of the battery system;
when the temperature of the battery core is higher than the target temperature, the liquid cooling system is controlled to be started, the liquid cooling system is controlled to be in a first working mode, when the temperature of the water inlet is lower than a first preset temperature, the liquid cooling system is controlled to be switched to the first working mode, and when the temperature of the water inlet is higher than a second preset temperature, the liquid cooling system is controlled to be switched to the second working mode, and the first preset temperature is lower than the second preset temperature; the first working mode is a working mode that the cooling liquid in the cooling liquid storage tank participates in the battery cooling loop to carry out circulating cooling through the cooling liquid loop, and the second working mode is a working mode that only the cooling liquid in the battery cooling liquid loop carries out circulating cooling;
And when the temperature of the battery cell is less than or equal to the target temperature, controlling the liquid cooling system to be shut down.
In one possible implementation manner, the method for controlling the charge cooling of the electric mine card further includes:
when the temperature of the water inlet is greater than or equal to a first preset temperature and less than or equal to a second preset temperature, if the liquid cooling system is in a first working mode and the duration of the first working mode is longer than a first preset duration, the liquid cooling system is controlled to be switched from the first working mode to a second working mode.
In one possible implementation manner, the method for controlling the charge cooling of the electric mine card further includes:
when the temperature of the water inlet is greater than or equal to the first preset temperature and less than or equal to the second preset temperature, if the liquid cooling system is in the second working mode and the duration of the second working mode is longer than the second preset duration, the liquid cooling system is controlled to be switched from the second working mode to the first working mode.
In one possible implementation manner, the method for controlling the charge cooling of the electric mine card further includes:
acquiring a charging current of a battery system;
and controlling the flow rate of the cooling liquid in the liquid cooling system according to the charging current.
In one possible implementation, the formula for controlling the flow rate of the cooling liquid in the liquid cooling system according to the charging current is:
V o ＝K·P m ·I
Wherein V is o The flow rate of the cooling liquid in the liquid cooling system is represented, and I represents the charging current; p (P) m Representing preset flow rate weight, m=0 or 1, m=0 representing that the current liquid cooling system is in the first working mode, m=1 representing that the current liquid cooling system is in the second working mode, and P m＝0 ＜P m＝1 The method comprises the steps of carrying out a first treatment on the surface of the K represents the cooling coefficient, k=1 when m=0, and k=1,q represents the current charge of the battery in the battery system, and T represents the charge duration of the battery system in the second operation mode.
In one possible implementation manner, the method for controlling the charge cooling of the electric mine card further includes:
after the liquid cooling system is controlled to be in the second working mode, if the duration of the liquid cooling system in the second working mode exceeds the preset limiting duration, an alarm signal is output, and the battery system is controlled to stop charging.
In a second aspect, an embodiment of the present application provides a charging and cooling control device for an electric mine card, where the electric mine card includes a battery system and a liquid cooling system, the battery system includes a battery water tank, the liquid cooling system includes a cooling liquid storage tank, a cooling liquid loop, and a battery cooling loop, the cooling liquid loop is connected with the cooling liquid storage tank and the battery cooling loop, the battery cooling loop is connected with the battery water tank, the cooling liquid loop is used for circulating cooling liquid in the cooling liquid water tank into the battery cooling loop, and the battery cooling loop is used for cooling the battery water tank;
The charge cooling control device includes:
the acquisition module is used for acquiring the cell temperature and the water inlet temperature of the battery system when the battery system is in a charging state;
the first control module is used for controlling the liquid cooling system to start when the temperature of the battery core is higher than the target temperature, controlling the liquid cooling system to be in a first working mode, controlling the liquid cooling system to switch to the first working mode when the temperature of the water inlet is lower than a first preset temperature, and controlling the liquid cooling system to switch to the second working mode when the temperature of the water inlet is higher than a second preset temperature, wherein the first preset temperature is lower than the second preset temperature; the first working mode is a working mode that the cooling liquid in the cooling liquid storage tank participates in the battery cooling loop to carry out circulating cooling through the cooling liquid loop, and the second working mode is a working mode that only the cooling liquid in the battery cooling liquid loop carries out circulating cooling;
and the second control module is used for controlling the liquid cooling system to be shut down when the temperature of the battery cell is less than or equal to the target temperature.
In a third aspect, embodiments of the present application provide a thermal management system, including a memory and a processor, where the memory stores a computer program executable on the processor, and the processor implements the steps of the method for controlling charge cooling of an electric mining card according to the first aspect or any one of the possible implementations of the first aspect when the processor executes the computer program.
In a fourth aspect, embodiments of the present application provide a powered mining card comprising the thermal management system of the third aspect above.
In a fifth aspect, embodiments of the present application provide a computer readable storage medium storing a computer program, which when executed by a processor implements the steps of the method for controlling charge cooling of an electric mining card according to the first aspect or any one of the possible implementations of the first aspect.
The application provides a control method, thermal management system and electronic ore deposit card of cooling that charges of electronic ore deposit card, through setting up two kinds of cooling mode of second mode and first mode, first mode is the less self-loopa mode of cooling effect, and the coolant liquid in the bin does not flow in the cooling circulation return circuit. The second working mode is a refrigeration working mode with a better cooling effect, and the cooling liquid in the storage tank flows into the cooling circulation loop. During charging, when the temperature of the battery core is too high, the liquid cooling system is controlled to work in the second working mode or the first working mode according to the temperature of the water inlet, so that the liquid cooling system can stably radiate heat of the battery in a long-time charging process, meanwhile, cooling liquid in the storage tank can be prevented from completely participating in cooling circulation and cooling, the service life of the cooling liquid can be prolonged, the charging reliability, stability and charging efficiency of the battery are ensured, and finally the working reliability of the electric mining card is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a circuit structure of an electric mine card according to an embodiment of the present disclosure;
fig. 2 is a flowchart of an implementation of a method for controlling charge cooling of an electric mine card according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a charging and cooling control device of an electric mine card according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a thermal management system provided by an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the following description will be made with reference to the accompanying drawings by way of specific embodiments.
For economy and environmental protection, on the basis of meeting the use demands, the applicant has developed an electric mine card which is driven by pure electricity and has the functions of excavation, mining, transportation and the like through electric driving. In the charging process of the electric mine card, the battery is particularly important to cool down, so that the battery is ensured to be charged normally, rapidly and reliably, and the control of related heat dissipation strategies is not needed.
Most of the existing mining cards are driven by fuel oil, and most of the existing mining cards are provided with a cooling strategy for high-power operation mechanisms such as an engine, a starter and the like, and are not suitable for a battery system serving as a driving core.
In addition, most of the conventional charging and cooling strategies of the electric vehicle are to judge whether to start cooling according to the temperature of the battery. When the temperature of the battery is high, the battery is started to be cooled, and the temperature is reduced. When the battery temperature is low, the cooling is turned off. And the battery capacity of electric ore card is far more than the battery capacity of electric automobile, if adopt electric automobile's charge cooling strategy to charge cooling to electric ore card, then probably appear in the charging process and work with high-power drive liquid cooling system for a long time for the coolant liquid in the liquid cooling system circulates for a long time, makes the cooling effect of coolant liquid decline. Therefore, the charging and cooling strategy of the existing electric automobile is not applicable to the electric mine card.
In embodiments of the present application, the electric mining card may include a battery system, a thermal management system, and a liquid cooling system, and the thermal management system may be respectively connected to the battery system and the liquid cooling system for receiving, collecting, and controlling the operations of the two. The battery system comprises a plurality of battery clusters and a battery management unit, and the liquid cooling system comprises a plurality of liquid cooling units.
In an embodiment of the present application, an electric mining card includes a battery system and a liquid cooling system. The battery system comprises a battery water tank, the liquid cooling system comprises a cooling liquid storage tank, a cooling liquid loop and a battery cooling loop, the cooling liquid loop is respectively connected with the cooling liquid storage tank and the battery cooling loop, the battery cooling loop is connected with the battery water tank, the cooling liquid loop is used for circulating cooling liquid in the cooling liquid water tank into the battery cooling loop, and the battery cooling loop is used for cooling the battery water tank.
The liquid cooling system comprises a first working mode and a second working mode, wherein the first working mode is a working mode that the cooling liquid of the storage tank in the liquid cooling system does not enter the cooling circulation loop, the second working mode is a working mode that the cooling liquid of the storage tank in the liquid cooling system enters the cooling circulation loop, and the cooling circulation loop flows through the battery water tank of the battery system and is used for cooling the battery system.
For example, fig. 1 is a schematic circuit structure of an electric mine card provided in an embodiment of the present application, as shown in fig. 1, and in an embodiment of the present application, examples of two circuits are as follows:
and (3) a cooling liquid loop: a, B, C, D, E and F circulate, and the cooling liquid in the cooling liquid storage tank flows through the battery water tank to cool.
The battery cooling circuit is as follows: b, C, D and E, the cooling liquid in the cooling liquid storage tank does not flow through the battery water tank, and only the remaining cooling liquid in the loop is cooled circularly.
In order to ensure the safety of the battery in the charging process of the electric mine card, the embodiment of the application provides a charging and cooling control method of the electric mine card, which is described in detail below:
referring to fig. 2, a flowchart of an implementation of a method for controlling charging and cooling of an electric mine card according to an embodiment of the present application is shown. As shown in fig. 2, a charge cooling control method of an electric mining card may include S101 to S103.
S101, when the battery system is in a charging state, acquiring the cell temperature and the water inlet temperature of the battery system.
The execution main body of the embodiment of the application can be a central control system of an electric mine card, a thermal management system (Thermal Management System, TMS) or other control systems which can be connected with a battery system and a liquid cooling system, and can be specifically selected according to actual conditions.
The embodiment of the application can detect the working state of the battery system, and the working state of the battery system can comprise a charging state, a discharging state and a stopping state.
Alternatively, the battery system may be considered to be in a charged state when it is detected that the electric mine card is connected to an external charging pile or an external charging instruction is received. When the electric quantity of the battery in the battery system is lower than the preset electric quantity, a charging instruction can be sent.
In an embodiment of the present application, a plurality of battery clusters and battery management units (Battery Management System, BMS) may be included in a battery system, wherein the plurality of battery clusters are connected in parallel and may power an electric mining card.
In the embodiment of the application, the cell temperature is the cell temperature of the cells in each battery cluster in the battery system. The temperature of the water inlet is the temperature of the cooling liquid water inlet of the battery box where each battery cluster is positioned in the battery system.
Alternatively, in order to ensure the balance of charging and cooling, an average temperature value of the corresponding cell temperatures of the respective batteries in the respective battery clusters may be calculated as the cell temperature of the battery system. Or, in order to ensure the maximum reliability of charging and cooling, the highest value of the cell temperature corresponding to each battery in each battery cluster is selected as the cell temperature of the battery system, and specifically, the cell temperature can be selected and set according to actual situations.
Optionally, in order to ensure the balance of charging and cooling, the average temperature of the cooling liquid inlets of the battery boxes where the battery clusters are located can be calculated and used as the water inlet temperature of the battery system. Or, in order to ensure the maximum reliability of charging and cooling, the highest value of the cooling liquid inlet temperature of each battery box where each battery cluster is located is selected as the water inlet temperature of the battery system, and can be specifically selected and set according to practical situations.
By way of example, a battery system may include 13 battery clusters, with a total of 78 battery boxes. BMS can gather 13 battery cluster's electric core temperature and 78 battery box's water inlet temperature to send TMS with all electric core temperatures and all water inlet temperatures, confirm electric core temperature and water inlet temperature by TMS.
S102, when the temperature of the battery core is higher than the target temperature, the liquid cooling system is controlled to be started, the liquid cooling system is controlled to be in a first working mode, when the temperature of the water inlet is lower than a first preset temperature, the liquid cooling system is controlled to be switched to the first working mode, and when the temperature of the water inlet is higher than a second preset temperature, the liquid cooling system is controlled to be switched to the second working mode, and the first preset temperature is lower than the second preset temperature; the first working mode is a working mode that the cooling liquid in the cooling liquid storage tank participates in the battery cooling loop to carry out circulating cooling through the cooling liquid loop, and the second working mode is a working mode that only the cooling liquid in the battery cooling liquid loop carries out circulating cooling.
When the temperature of the battery cell is higher than the target temperature, the liquid cooling system is controlled to be started, at the moment, the She Ling system can be controlled to work in a first working mode, the cooling liquid in the cooling circulation loop is used for cooling and circulating the battery system, and the cooling liquid in the storage tank does not participate in circulation.
The target temperature is a preset threshold value for representing the charging temperature of the battery cell, and may be determined according to the type and production process of the battery cell in the battery system or preset. For example, the target temperature may be 35 ℃. When the temperature of the battery cell is higher than the target temperature, the battery system is required to be cooled, and the liquid cooling system can be controlled to be started at the moment. When the temperature of the battery cell is less than or equal to the target temperature, the battery system is not required to be cooled.
After the liquid cooling system is started, the working mode of the liquid cooling system can be switched according to the temperature of the water inlet of the battery system. The liquid cooling system may include at least two modes of operation, namely a first mode of operation and a second mode of operation. In the first working mode, the cooling liquid in the storage tank is not extracted, and the cooling liquid in the cooling liquid circulation loop is only controlled to flow through the battery water tanks corresponding to the battery clusters in the battery system so as to cool the batteries. In the second working mode, cooling liquid in the storage tank is pumped, and the cooling liquid is controlled by the water pump to flow through the battery water tanks corresponding to the battery clusters in the battery system, so that the temperature of the battery is reduced. The cooling effect of the liquid cooling system in the second working mode is better than that in the first working mode.
After the liquid cooling system is controlled to start, the working mode of the liquid cooling system can be controlled according to the temperature of the water inlet. When the temperature of the water inlet of the battery system is not high, the liquid cooling system can be controlled to be switched into a first working mode so as to stably cool the battery system. When the temperature of the water inlet of the battery system is too high, the liquid cooling system can be controlled to be switched into a second working mode so as to quickly cool the battery system. The setting can be specifically selected according to actual conditions.
The charging time of the electric mine card is longer, the liquid cooling system can be controlled to be in a first working mode or a second working mode according to the temperature of the water inlet of the battery system, when the temperature of the water inlet is high, the cooling effect of the cooling liquid in the cooling circulation loop is shown to be poor, and at the moment, the electric mine card can be switched to the second working mode, and new cooling liquid in the storage tank is introduced to participate in the cooling circulation. When the temperature of the water inlet is not high, the cooling effect of the cooling liquid in the cooling circulation loop is good, and the cooling liquid in the storage tank is not needed to be introduced. Through setting up second mode and first mode, can avoid the coolant liquid in the storage tank to be excessively consumed or the effect is variation for the coolant liquid can take part in the cooling in turn, guarantees the refrigeration effect of the liquid cooling system of electronic ore deposit card, improves the life of electronic ore deposit card liquid cooling system.
In the embodiment of the present application, the first preset temperature is a switching condition for switching the first working mode, and the second preset temperature is a switching condition for switching the second working mode.
After the liquid cooling system is started, the liquid cooling system works in the first working mode, and the temperature of the water inlet can be increased along with the increase of the charging time. When the temperature of the water inlet reaches a second preset temperature, the liquid cooling system is controlled to be switched from the first working mode to the second working mode, so that the refrigerating effect is enhanced. As the charging time increases, the water inlet temperature may decrease in the second operation mode. When the temperature of the water inlet is reduced to a first preset temperature, the liquid cooling system is controlled to be switched from the second working mode to the first working mode, so that the long-term refrigeration mode is avoided, and the charging power consumption is reduced.
For example, the first preset temperature and the second preset temperature may constitute a lower limit value and an upper limit value of the preset temperature range, respectively. The above S102 may include S1021 to S1023.
S1021, when the temperature of the water inlet is lower than a preset temperature range, controlling the liquid cooling system to be in a first working mode.
When the temperature of the water inlet is lower than a first preset temperature, the water inlet of the battery system is lower, the battery box is not required to be further cooled, and at the moment, the liquid cooling system can be controlled to be in a first working mode, and the battery system is stably cooled in a circulating mode.
For example, the preset temperature range may be (15 ℃,25 ℃), and when the temperature of the water inlet of the battery box where each battery cluster is located in the battery system is less than 15 ℃, the liquid cooling system may be controlled to be in the first working mode.
And S1022, when the temperature of the water inlet is higher than the preset temperature range, controlling the liquid cooling system to be in a second working mode.
When the temperature of the water inlet is higher than a second preset temperature, the water inlet of the battery system is higher, the battery box is required to be further reduced, and at the moment, the liquid cooling system can be controlled to be in a second working mode so as to rapidly cool the battery system.
The preset temperature range may be (15 ℃ and 25 ℃) for example, and when the temperature of the water inlet of the battery box where each battery cluster is located in the battery system is greater than 25 ℃, the liquid cooling system may be controlled to be in the second working mode.
S1023, when the temperature of the water inlet is in a preset temperature range:
if the temperature of the water inlet is increased to a preset temperature range from a temperature lower than the preset temperature range, controlling the liquid cooling system to keep a first working mode;
if the temperature of the water inlet is reduced to the preset temperature range from the temperature higher than the preset temperature range, the liquid cooling system is controlled to keep the second working mode.
When the temperature of the water inlet is larger than or equal to the first preset temperature and smaller than or equal to the second preset temperature, the water inlet temperature of the battery system is indicated to work normally, at the moment, the working mode of the liquid cooling system is not required to be switched, only the working mode in the former state is required to be kept, the liquid cooling system can be switched in modes frequently, the switching frequency is reduced, and the working reliability of the liquid cooling system is improved.
When the temperature of the water inlet is lower than a preset temperature range, the liquid cooling system is controlled to be in a first working mode. And then, when the temperature of the water inlet rises to a preset temperature range, namely, the temperature of the water inlet is between a first preset temperature and a second preset temperature, the liquid cooling system can be controlled to be kept in a first working mode continuously, and the working mode is not required to be switched.
When the temperature of the water inlet is higher than a preset temperature range, the liquid cooling system is controlled to be in a first working mode. And then, when the temperature of the water inlet is reduced to a preset temperature range, namely, the temperature of the water inlet is between a first preset temperature and a second preset temperature, the liquid cooling system can be controlled to be kept in a second working mode continuously, and the working mode is not required to be switched.
According to the embodiment of the application, the working mode of the liquid cooling system is switched according to the temperature of the water inlet of the battery system, and when the temperature of the water inlet is in the preset temperature range, the working mode of the liquid cooling system is kept the same as the working mode of the previous period, frequent working mode switching of the liquid cooling system is avoided, the probability of faults in the charging process is reduced, and the charging reliability of the electric mine card is improved.
S103, when the temperature of the battery cell is less than or equal to the target temperature, controlling the liquid cooling system to be shut down.
When the temperature of the battery core of the battery system is not higher than the target temperature, the battery temperature is not high in the charging process of the current battery system, cooling and heat dissipation of the battery are not needed, and the liquid cooling system can be controlled to be powered off or dormant so as to reduce the charging power consumption.
According to the embodiment of the application, during charging, the working mode of the liquid cooling system is controlled to be switched according to the temperature of the battery core and the temperature of the water inlet, so that the liquid cooling system dissipates heat of the battery by adopting a proper working mode, the charging reliability and stability of the battery are guaranteed, the charging efficiency of the battery is guaranteed, and the working reliability of the electric mine card is finally improved.
In some embodiments of the present application, the method for controlling charge cooling of an electric mining card may further include:
when the temperature of the water inlet is greater than or equal to a first preset temperature and less than or equal to a second preset temperature, if the liquid cooling system is in a first working mode and the duration of the first working mode is longer than a first preset duration, the liquid cooling system is controlled to be switched from the first working mode to a second working mode.
According to the embodiment of the application, when the temperature of the battery cell is higher than the target temperature and the temperature of the water inlet is lower than the preset temperature, the liquid cooling system is controlled to be in the first working mode. Along with the increase of the charging time, the temperature of the water inlet may rise to a preset temperature range, and the liquid cooling system is kept in the first working mode.
And in the preset temperature range, after the duration of the liquid cooling system in the first working mode exceeds the first preset duration, if the water inlet temperature is continuously in the preset temperature range, controlling the liquid cooling system to be switched from the first working mode to the second working mode so as to realize rapid refrigeration of battery charging.
In some embodiments of the present application, the method for controlling charge cooling of an electric mining card may further include:
when the temperature of the water inlet is greater than or equal to the first preset temperature and less than or equal to the second preset temperature, if the liquid cooling system is in the second working mode and the duration of the second working mode is longer than the second preset duration, the liquid cooling system is controlled to be switched from the second working mode to the first working mode.
According to the embodiment of the application, when the temperature of the battery cell is higher than the target temperature and the temperature of the water inlet is higher than the preset temperature, the liquid cooling system is controlled to be in the second working mode. Along with the increase of the charging time, the temperature of the water inlet may be reduced to a preset temperature range, and the liquid cooling system is kept in the second working mode.
After the duration of keeping the liquid cooling system in the second working mode exceeds the second preset duration, if the temperature of the water inlet is continuously in the preset temperature range, the liquid cooling system is controlled to be switched into the first working mode from the second working mode, so that the overlong refrigerating time of the liquid cooling system is avoided, excessive power consumption is avoided, and the overall power consumption is reduced on the basis of meeting the cooling requirement.
In the embodiment of the application, the first preset duration and the second preset duration may be set according to actual conditions, so as to enable the liquid cooling system to work in the first working mode as much as possible, reduce the overall power consumption of the system, and the first preset duration is generally greater than the second preset duration, for example, the first preset duration may be 5 hours, and the second preset duration may be 3 hours.
In some embodiments of the present application, the charge cooling control method may further include:
acquiring a charging current of a battery system;
and controlling the flow rate of the cooling liquid in the liquid cooling system according to the charging current.
Optionally, after the liquid cooling system is controlled to be in the first working mode, the charging current of the battery system in the first working mode is obtained, and the flow rate of the cooling liquid in each liquid cooling unit of the liquid cooling system is controlled according to the charging current, wherein the larger the charging current is, the higher the flow rate of the cooling liquid is, and the better the heat dissipation effect is.
Or after the liquid cooling system is controlled to be in the second working mode, acquiring the charging current of the battery system in the second working mode, and controlling the flow rate of the cooling liquid in each liquid cooling unit of the liquid cooling system according to the charging current so as to realize the dynamic charging and cooling of the battery system.
According to the embodiment of the application, the flow speed of the cooling liquid in the liquid cooling system is dynamically adjusted according to the charging current, so that the dynamic cooling of the battery is realized, the charging efficiency is further improved, and the charging reliability of the electric mine card is improved.
In some embodiments of the present application, the flow rate of the cooling liquid may be adjusted according to a predetermined flow rate formula, and the flow rate of the cooling liquid in the liquid cooling system is controlled according to the charging current by the formula:
V o ＝K·P m ·I
wherein V is o The flow rate of the cooling liquid in the liquid cooling system is represented, and I represents the charging current; p (P) m Representing preset flow rate weight, m=0 or 1, m=0 representing that the current liquid cooling system is in the first working mode, m=1 representing that the current liquid cooling system is in the second working mode, and P m＝0 ＜P m＝1 The method comprises the steps of carrying out a first treatment on the surface of the K represents the cooling coefficient, k=1 when m=0, and k=1,q represents the current charge of the battery in the battery system, and T represents the charge duration of the battery system in the second operation mode.
In an embodiment of the present application, when the liquid cooling system is in the first operation mode, a formula for controlling a flow rate of a cooling liquid in the liquid cooling system according to a charging current is a first formula, where the first formula is as follows:
V o ＝P m＝0 ·I
wherein P is m＝0 Indicating a preset flow rate weight in the first mode of operation, which may be pre-calibrated, e.g., P m＝0 ＝0.85。
In the first operation mode, the battery system is charged more stably, so that the flow rate of the cooling liquid can be controlled according to the corresponding flow rate weight and charging current, so that the battery system is charged in a higher efficiency mode.
In an embodiment of the present application, when the liquid cooling system is in the second operation mode, a formula for controlling a flow rate of the cooling liquid in the liquid cooling system according to the charging current is a second formula, where the second formula is as follows:
wherein P is m＝1 Representing presetsThe flow rate weight in the second mode of operation of (c) may be pre-calibrated, e.g., P m＝1 ＝1.15。
In the second working mode, with the increase of the charging time, the cooling liquid continuously circulates and dissipates heat, the charging condition of the battery tends to be stable, and the flow rate of the cooling liquid can be properly reduced so as to reduce the charging power consumption on the premise of ensuring the charging reliability of the battery, and therefore, the flow rate of the cooling liquid can be reduced with the increase of the charging time.
In the second working mode, along with the continuous increase of the electric quantity of the battery, the heat dissipation requirement of the battery is also continuously improved, and the flow rate of the cooling liquid can be properly improved so as to ensure the stable charging of the battery, so that the flow rate of the cooling liquid can be increased along with the increase of the electric quantity of the battery.
According to the embodiment of the application, the flow rate of the cooling liquid is calculated through weighting the charging current according to the working mode of the liquid cooling system, and the cooling liquid is controlled to flow according to the calculated flow rate of the cooling liquid, so that the charging system charges under higher charging efficiency, and the charging stability and reliability are ensured.
In some embodiments of the present application, the method for controlling charge cooling of an electric mining card may further include:
after the liquid cooling system is controlled to be in the second working mode, if the duration of the liquid cooling system in the second working mode exceeds the preset limiting duration, an alarm signal is output, and the battery system is controlled to stop charging.
The alarm signal is used for indicating that the charging temperature of the battery system is abnormal. The preset limit duration is generally not greater than the maximum charging duration of the charging system, and the preset duration may be 90% of the maximum charging duration.
When the refrigerating time is too long, the condition that the battery of the battery system is possibly too high in long-term temperature in the charging process and the charging abnormality can exist is indicated. According to the embodiment of the application, the first preset limiting duration is set, so that when the battery system is charged beyond the duration limit, alarming is carried out, charging is cut off, and the charging reliability of the battery system is guaranteed on the basis of realizing battery charging fault detection.
In some embodiments of the present application, the method for controlling charge cooling of the electric mining card may further include, when the battery system is in a charged state:
and if the battery system fault is detected or a stop signal is received, controlling the liquid cooling system to be shut down so as to cut off the high pressure of the liquid cooling unit in the liquid cooling system.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic of each process, and should not limit the implementation process of the embodiment of the present application in any way.
The following are device embodiments of the present application, for details not described in detail therein, reference may be made to the corresponding method embodiments described above.
Fig. 3 is a schematic structural diagram of a charge cooling control device for an electric mine card according to an embodiment of the present application, and for convenience of explanation, only a portion related to the embodiment of the present application is shown, and details are as follows:
as shown in fig. 3, the charge cooling control device 20 of the electric mine card comprises a battery system and a liquid cooling system, the battery system comprises a battery water tank, the liquid cooling system comprises a cooling liquid storage tank, a cooling liquid loop and a battery cooling loop, the cooling liquid loop is respectively connected with the cooling liquid storage tank and the battery cooling loop, the battery cooling loop is connected with the battery water tank, the cooling liquid loop is used for circulating cooling liquid in the cooling liquid water tank into the battery cooling loop, and the battery cooling loop is used for cooling the battery water tank;
The charge cooling control device 20 may include:
an acquisition module 201, configured to acquire a cell temperature and a water inlet temperature of the battery system when the battery system is in a charging state;
the first control module 202 is configured to control the liquid cooling system to start when the temperature of the battery core is greater than the target temperature, control the liquid cooling system to be in a first working mode, and control the liquid cooling system to switch to the first working mode when the temperature of the water inlet is less than a first preset temperature, and control the liquid cooling system to switch to the second working mode when the temperature of the water inlet is greater than a second preset temperature, wherein the first preset temperature is less than the second preset temperature; the first working mode is a working mode that the cooling liquid in the cooling liquid storage tank participates in the battery cooling loop to carry out circulating cooling through the cooling liquid loop, and the second working mode is a working mode that only the cooling liquid in the battery cooling liquid loop carries out circulating cooling
The second control module 203 is configured to control the liquid cooling system to shut down when the temperature of the battery cell is less than or equal to the target temperature.
In some embodiments of the present application, the charge cooling control device 20 may further include:
and the third control module is used for controlling the liquid cooling system to be switched from the first working mode to the second working mode if the liquid cooling system is in the first working mode and the duration of the first working mode is longer than the first preset duration when the temperature of the water inlet is greater than or equal to the first preset temperature and less than or equal to the second preset temperature.
In some embodiments of the present application, the charge cooling control device 20 may further include:
and the fourth control module is used for controlling the liquid cooling system to be switched from the second working mode to the first working mode if the liquid cooling system is in the second working mode and the duration of the second working mode is longer than the second preset duration when the temperature of the water inlet is greater than or equal to the first preset temperature and less than or equal to the second preset temperature.
In some embodiments of the present application, the charge cooling control device 20 may further include:
a fifth control module for: acquiring a charging current of a battery system; and controlling the flow rate of the cooling liquid in the liquid cooling system according to the charging current.
In some embodiments of the present application, the formula for controlling the flow rate of the cooling liquid in the liquid cooling system according to the charging current is:
V o ＝K·P m ·I
wherein V is o The flow rate of the cooling liquid in the liquid cooling system is represented, and I represents the charging current; p (P) m Representing a preset flow rate weight, m=0 or 1M=0 indicates that the current liquid cooling system is in the first operation mode, m=1 indicates that the current liquid cooling system is in the second operation mode, and P m＝0 ＜P m＝1 The method comprises the steps of carrying out a first treatment on the surface of the K represents the cooling coefficient, k=1 when m=0, and k=1,q represents the current charge of the battery in the battery system, and T represents the charge duration of the battery system in the second operation mode.
In some embodiments of the present application, the charge cooling control device 20 may further include:
and the sixth control module is used for outputting an alarm signal and controlling the battery system to stop charging if the duration of the liquid cooling system in the second working mode exceeds the preset limit duration after controlling the liquid cooling system in the second working mode.
FIG. 4 is a schematic diagram of a thermal management system provided by an embodiment of the present application. As shown in fig. 4, the thermal management system 30 of this embodiment includes: a processor 300 and a memory 301, the memory 301 having stored therein a computer program 302 executable on the processor 300. The processor 300, when executing the computer program 302, implements the steps of the charge cooling control method embodiment for each of the electric mining cards described above. Alternatively, the processor 300, when executing the computer program 302, performs the functions of the modules/units of the apparatus embodiments described above.
By way of example, the computer program 302 may be partitioned into one or more modules/units, which are stored in the memory 301 and executed by the processor 300 to complete the present application. One or more of the modules/units may be a series of computer program instruction segments capable of performing particular functions to describe the execution of the computer program 302 in the thermal management system 30.
Thermal management system 30 may be a computing device such as a desktop computer, a notebook computer, a palm top computer, and a cloud server. Thermal management system 30 may include, but is not limited to, a processor 300, a memory 301. It will be appreciated by those skilled in the art that fig. 4 is merely an example of thermal management system 30 and is not intended to be limiting of thermal management system 30, and may include more or fewer components than shown, or may combine certain components, or different components, such as a liquid cooling system may also include input and output devices, network access devices, buses, etc.
The processor 300 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 301 may be an internal storage unit of the thermal management system 30, such as a hard disk or a memory of the thermal management system 30. The memory 301 may also be an external storage device of the thermal management system 30, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card) or the like, which are provided on the thermal management system 30. Further, the memory 301 may also include both internal storage units and external storage devices of the thermal management system 30. The memory 301 is used to store a computer program and other programs and data required for the liquid cooling system. The memory 301 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
The embodiment of the application also provides an electric mine card which comprises the thermal management system.
Optionally, the electric mine card may further include a battery system and a liquid cooling system, and the thermal management system is connected to the battery system and the liquid cooling system respectively. The battery system may send the core temperature to the thermal management system, and the liquid cooling system may send the water inlet temperature to the thermal management system.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided herein, it should be understood that the disclosed apparatus/liquid cooling system and method may be implemented in other ways. For example, the apparatus/liquid cooling system embodiments described above are merely illustrative, e.g., the division of modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application implements all or part of the flow of the method of the foregoing embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, where the computer program, when executed by a processor, may implement the steps of the method embodiment of charging and cooling control of each electric mine card. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. The electric ore card charging and cooling control method is characterized in that the electric ore card comprises a battery system and a liquid cooling system, the battery system comprises a battery water tank, the liquid cooling system comprises a cooling liquid storage tank, a cooling liquid loop and a battery cooling loop, the cooling liquid loop is respectively connected with the cooling liquid storage tank and the battery cooling loop, the battery cooling loop is connected with the battery water tank, the cooling liquid loop is used for circulating cooling liquid in the cooling liquid water tank into the battery cooling loop, and the battery cooling loop is used for cooling the battery water tank;
The charge cooling control method includes:
when the battery system is in a charging state, acquiring the cell temperature and the water inlet temperature of the battery system;
when the temperature of the battery core is higher than the target temperature, the liquid cooling system is controlled to be started, the liquid cooling system is controlled to be in a first working mode, when the temperature of the water inlet is lower than a first preset temperature, the liquid cooling system is controlled to be switched to the first working mode, and when the temperature of the water inlet is higher than a second preset temperature, the liquid cooling system is controlled to be switched to the second working mode, and the first preset temperature is lower than the second preset temperature; the first working mode is a working mode that the cooling liquid in the cooling liquid storage tank participates in the battery cooling loop for circulating cooling through the cooling liquid loop, and the second working mode is a working mode that only the cooling liquid in the battery cooling liquid loop is used for circulating cooling;
and when the temperature of the battery cell is less than or equal to the target temperature, controlling the liquid cooling system to be shut down.
2. The charge cooling control method of an electric mining card according to claim 1, characterized by further comprising:
When the temperature of the water inlet is larger than or equal to a first preset temperature and smaller than or equal to a second preset temperature, if the liquid cooling system is in a first working mode and the duration of the first working mode is longer than a first preset duration, the liquid cooling system is controlled to be switched from the first working mode to the second working mode.
3. The charge cooling control method of an electric mining card according to claim 1, characterized by further comprising:
when the temperature of the water inlet is larger than or equal to a first preset temperature and smaller than or equal to a second preset temperature, if the liquid cooling system is in a second working mode and the duration time of the liquid cooling system in the second working mode is longer than a second preset duration time, the liquid cooling system is controlled to be switched from the second working mode to the first working mode.
4. The charge cooling control method of an electric mining card according to claim 1, characterized by further comprising:
acquiring a charging current of the battery system;
and controlling the flow rate of the cooling liquid in the liquid cooling system according to the charging current.
5. The method for controlling the charge cooling of an electric mining card according to claim 4, wherein the formula for controlling the flow rate of the cooling liquid in the liquid cooling system according to the charge current is:
V o ＝K·P m ·I
Wherein V is o Indicating the flow rate of the cooling liquid in the liquid cooling system, wherein I indicates the charging current; p (P) m Indicating a preset flow rate weight, m=0 or 1, m=0 indicating that the current liquid cooling system is in the first working modeM=1 indicates that the current liquid cooling system is in the second operation mode, P m＝0 ＜P m＝1 The method comprises the steps of carrying out a first treatment on the surface of the K represents the cooling coefficient, k=1 when m=0, and k=1,q represents the current electric quantity of the battery in the battery system, and T represents the charging duration of the battery system in the second working mode.
6. The charge cooling control method of an electric mining card according to any one of claims 1 to 5, characterized by further comprising:
after the liquid cooling system is controlled to be in the second working mode, if the duration of the liquid cooling system in the second working mode exceeds the preset limiting duration, an alarm signal is output, and the battery system is controlled to stop charging.
7. The electric ore card charging and cooling control device is characterized by comprising a battery system and a liquid cooling system, wherein the battery system comprises a battery water tank, the liquid cooling system comprises a cooling liquid storage tank, a cooling liquid loop and a battery cooling loop, the cooling liquid loop is respectively connected with the cooling liquid storage tank and the battery cooling loop, the battery cooling loop is connected with the battery water tank, the cooling liquid loop is used for circulating cooling liquid in the cooling liquid water tank into the battery cooling loop, and the battery cooling loop is used for cooling the battery water tank;
The charge cooling control device includes:
the acquisition module is used for acquiring the cell temperature and the water inlet temperature of the battery system when the battery system is in a charging state;
the first control module is used for controlling the liquid cooling system to start when the temperature of the battery cell is higher than a target temperature, controlling the liquid cooling system to be in a first working mode, controlling the liquid cooling system to be switched to the first working mode when the temperature of the water inlet is lower than a first preset temperature, and controlling the liquid cooling system to be switched to the second working mode when the temperature of the water inlet is higher than a second preset temperature, wherein the first preset temperature is lower than the second preset temperature; the first working mode is a working mode that the cooling liquid in the cooling liquid storage tank participates in the battery cooling loop for circulating cooling through the cooling liquid loop, and the second working mode is a working mode that only the cooling liquid in the battery cooling liquid loop is used for circulating cooling;
and the second control module is used for controlling the liquid cooling system to be shut down when the temperature of the battery cell is less than or equal to the target temperature.
8. A thermal management system comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor, when executing the computer program, performs the steps of the method of controlling the charge cooling of an electric mining card as claimed in any one of claims 1 to 6.
9. An electrically powered mining card comprising the thermal management system of claim 8.
10. A computer-readable storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the steps of the electric mining card charge cooling control method according to any one of claims 1 to 6.
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| CN113871750A (en) * | 2021-08-23 | 2021-12-31 | 上海融和智电新能源有限公司 | Vehicle-mounted energy system heat management method and system |
| CN114559857A (en) * | 2022-04-06 | 2022-05-31 | 广汽埃安新能源汽车有限公司 | Thermal management system control method and device |
| CN115626088A (en) * | 2022-09-20 | 2023-01-20 | 重庆长安汽车股份有限公司 | Heat management control method and device for rechargeable battery pack and storage medium |
| CN219267744U (en) * | 2022-11-10 | 2023-06-27 | 陕西重型汽车有限公司 | Cooling system for power battery of pure electric commercial vehicle |
| CN116544564A (en) * | 2023-05-10 | 2023-08-04 | 楚能新能源股份有限公司 | Test method and device for liquid cooling and heating management of vehicle, liquid cooling unit and electronic equipment |
| CN116639020A (en) * | 2023-06-15 | 2023-08-25 | 中国第一汽车股份有限公司 | Vehicle power battery charging method and charging pile |
| CN116749797A (en) * | 2023-07-14 | 2023-09-15 | 青岛海汇德电气有限公司 | Liquid cooling heat dissipation control method and device and electronic equipment |
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