CN117352910A

CN117352910A - Battery system, heating method, apparatus, computer device, and storage medium

Info

Publication number: CN117352910A
Application number: CN202311652046.7A
Authority: CN
Inventors: 雷健华; 秦赓; 张华�; 张勇波; 马辉; 林成慧; 姚桂花
Original assignee: Shenzhen Delian Minghai New Energy Co ltd
Current assignee: Shenzhen Delian Minghai New Energy Co ltd
Priority date: 2023-12-05
Filing date: 2023-12-05
Publication date: 2024-01-05

Abstract

The application relates to a battery system, a heating method, a heating device, a computer device and a storage medium. The battery system comprises a master controller and at least one module, wherein the module comprises a sub-controller, a heater and a battery pack. The master controller is used for sending a heating instruction to a target sub-controller in the target module; and the target sub-controller is used for controlling the target battery pack in the target module to supply power to the target heater in the target module according to the heating instruction so as to heat the target battery pack by the target heater. The battery system can reduce cost.

Description

Battery system, heating method, apparatus, computer device, and storage medium

Technical Field

The present disclosure relates to the field of battery technologies, and in particular, to a battery system, a heating method, a heating device, a computer device, and a storage medium.

Background

Taking a battery including a lithium ion battery as an example, when the battery is below 0 ℃, it is necessary to heat the battery using a heating device.

Current battery systems include a high voltage box and a plurality of modules. When the battery pack in the module needs to be heated, the main controller in the high-voltage box can supply power to the sub-controllers in the module, so that the sub-controllers supply power to the heater, and the heater heats the battery pack in the module.

However, the current battery system requires a high-low voltage conversion cable and an adapter to be disposed between the high-voltage box and each sub-controller, which is costly.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a battery system, a heating method, an apparatus, a computer device, and a storage medium that can reduce costs.

In a first aspect, the present application provides a battery system comprising a general controller and at least one module comprising a sub-controller, a heater and a battery pack;

the master controller is used for sending a heating instruction to a target sub-controller in the target module;

and the target sub-controller is used for controlling the target battery pack in the target module to supply power to the target heater in the target module according to the heating instruction so as to heat the target battery pack by the target heater.

In a second aspect, the present application also provides a heating method, including:

receiving a heating instruction sent by a master controller;

and controlling the target battery pack in the target module to supply power to the target heater in the target module according to the heating instruction so as to heat the target battery pack by the target heater.

In a third aspect, the present application also provides a heating method, including:

And sending a heating instruction to a target sub-controller in the target module, so that the target sub-controller controls the target battery pack in the target module to supply power to the target heater in the target module according to the heating instruction, and the target heater heats the target battery pack.

In a fourth aspect, the present application also provides a heating device, comprising:

the first receiving module is used for receiving the heating instruction sent by the master controller;

and the heating module is used for controlling the target battery pack in the target module to supply power to the target heater in the target module according to the heating instruction so as to heat the target battery pack by the target heater.

In a fifth aspect, the present application also provides a heating device, comprising:

and the sending module is used for sending a heating instruction to the target sub-controller in the target module, so that the target sub-controller controls the target battery pack in the target module to supply power to the target heater in the target module according to the heating instruction, and the target heater heats the target battery pack.

In a sixth aspect, the present application also provides a computer device comprising a memory storing a computer program and a processor implementing the steps of any of the methods described above when the processor executes the computer program.

In a seventh aspect, the present application also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of any of the methods described above.

In an eighth aspect, the present application also provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of any of the methods described above.

The battery system comprises a total controller and at least one module, wherein the module comprises a sub-controller, a heater and a battery pack. The master controller can send a heating instruction to a target sub-controller in the target module, and the target sub-controller can control the target battery pack to supply power to the target heater according to the heating instruction. That is, in the battery system provided in the present embodiment, the battery pack inside the module is used to supply power to the corresponding heater, and the high voltage box is not required to be used to supply power to the target heater, so that the present embodiment does not need to arrange a high-low voltage conversion cable and an adapter between the high voltage box and each sub-controller, thereby reducing the cost. In addition, the battery pack inside the module is self-powered for the heater, so that the heater does not carry high voltage, such as 48V safety voltage, so that the safety risk of the battery system is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of a conventional battery system;

fig. 2 is a schematic structural diagram of a battery system according to an embodiment of the present application;

fig. 3 is a schematic structural view of yet another battery system according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a sub-controller according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a further sub-controller according to an embodiment of the present application;

FIG. 6 is a schematic flow chart of a heating method according to an embodiment of the present application;

fig. 7 is a schematic flow chart of determining a target charging duration in an embodiment of the present application;

fig. 8 is a schematic flow chart of still another embodiment of determining a target charging duration;

FIG. 9 is a schematic flow chart of determining to stop heating according to an embodiment of the present application;

FIG. 10 is a schematic process diagram of a heating method according to an embodiment of the present application;

FIG. 11 is a block diagram illustrating a heating apparatus according to an embodiment of the present application;

FIG. 12 is a block diagram of a heating device according to an embodiment of the present application;

fig. 13 is an internal structural diagram of the computer device in the embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the detailed description and specific examples, while indicating the application, are intended for purposes of illustration only and are not intended to limit the application

Fig. 1 is a schematic structural view of a conventional battery system, and as shown in fig. 1, the battery system may employ a split type architecture to ensure that the weight of each module is controllable for transportation. In the split architecture, the battery system comprises a master controller and at least one module, and the master controller is connected with each module through a power supply line. For example, the battery system of fig. 1 includes a general controller 101, a module 102, and a module 103. The master controller 101 is located in the high-voltage box, the module 102 is the first module in the battery system, abbreviated as module 1, the module 103 is the nth module in the battery system, abbreviated as module N, and N is an integer greater than 0.

The battery pack within the module may include at least one battery therein, which may include, but is not limited to, a lithium ion battery. In the case of lithium ion batteries, the battery pack is charged at a temperature of usually 0 ℃ or higher, and when the temperature of the battery pack is 0 ℃ or lower, the battery pack needs to be heated.

With continued reference to fig. 1, in the prior art, taking an example of when one module 102 needs to be heated, the overall controller 101 will power all the modules, and the sub-controller 1021 within the module 102 will power the heater 1022 when heating is allowed, so that the battery 1023 will be heated by the heater 1022.

However, on the one hand, the power of the heater 1022 is generally large, and assuming that the battery 1023 of 48V (volts) and 50Ah (ampere hours) is heated, if the battery 1023 is required to raise the temperature by 20 ℃ in 30 minutes, the power requirement of the heater 1022 is not lower than 240W (watts). If the battery system has 10 modules in total, i.e., n=10, the power consumption of all the heaters operating simultaneously will reach 2400W, assuming that all the battery packs need to be heated.

If a safety voltage of 48V is used for the power supply to the heater, the current of the heater is 2400W/48 v=50a (ampere). While the total voltage of the battery system is high, for example, a safety voltage much greater than 60VDC (direct voltage volts) exists in the high voltage box, so 48V voltage must be obtained via the converter, and the connector and harness costs required for the 2400W converter and the 50A through-flow are high. In other words, the high-voltage box and each sub-controller need to be provided with a high-low voltage conversion cable and an adapter, so that the cost is high.

On the other hand, if the battery system uses a high-voltage battery to supply power to the heater, for example, the nominal voltage of 10 strings of 48V batteries is 512V, the current of the heater during heating will not exceed 5A, and the high-voltage dc connector and cable costs with higher cost are also required. In addition, since the heater is usually tightly attached to the battery pack, and the heater is operated with a high voltage of 512V, the safety risk of the battery system is also high.

Accordingly, it is necessary to provide a battery system that can reduce the cost and improve the safety. The battery system will be described below.

Fig. 2 is a schematic structural diagram of a battery system according to an embodiment of the present application, and as shown in fig. 2, the battery system includes a general controller 201, a module 202, and a module 203. Similarly, the master controller is connected with each module through a power supply line. The main controller 201 is located in the high-voltage box, the module 202 is the first module in the battery system, abbreviated as module 1, the module 203 is the nth module in the battery system, abbreviated as module N, and N is an integer greater than 0. The high-voltage box can be connected to the mains supply, that is to say can be supplied by the mains supply.

The overall controller 201 may include at least one of a central processing unit (Central Processing Unit, CPU), digital signal processor (Digital Signal Processing, DSP), field programmable gate array (Field-ProgrammableGate Array, FPGA), or other programmable logic device, among others.

The module includes a sub-controller, a heater, and a battery pack. Taking fig. 2 as an example, the module 202 includes a sub-controller 2021, a heater 2022, and a battery 2023, and the module 203 includes a sub-controller 2031, a heater 2032, and a battery 2033. Likewise, the sub-controller 2021 may include at least one of CPU, DSP, FPGA or other programmable logic devices.

The target module refers to a module that needs to be heated, and the target module is at least one of the modules of the battery system. It is understood that the target module includes a corresponding target battery pack, target heater and target sub-controller.

In one exemplary embodiment, the master controller is configured to send a heating command to a target sub-controller in the target module. And the target sub-controller is used for controlling the target battery pack in the target module to supply power to the target heater in the target module according to the heating instruction so as to heat the target battery pack by the target heater.

After receiving a heating command input by a user, the master controller can send a heating command to a target sub-controller in the target module; the master controller may also periodically obtain the temperature of each battery pack, and send a heating instruction to the target sub-controller in the target module when the temperature of the target battery pack is lower than a preset value, which is not limited in this embodiment.

The following description will be given by taking the case that the target module includes the module 202, the target sub-controller includes the sub-controller 2021, the target heater includes the heater 2022, and the target battery pack includes the battery pack 2023 as an example, and the target module is the same as the other modules, so that the description thereof will not be repeated.

With continued reference to fig. 2, the overall controller 201 sends a heating command to the sub-controller 2021 in the module 202. Further, the sub-controller 2021 controls the battery pack 2023 to supply power to the heater 2022 according to the heating command, so that the heater 2022 heats the battery pack 2023.

Wherein the sub-controller 2021 may conduct a power supply line between the battery pack 2023 and the heater 2022 to control the battery pack 2023 to supply power to the heater 2022. The conduction mode includes, but is not limited to, at least one of a switch, a diode, and a logic circuit.

It can be understood that if the number of the target modules is plural, the master controller will send heating instructions to the target sub-controllers in the target modules respectively, so that each target sub-controller controls the corresponding target battery pack to supply power to the target heater according to the heating instructions. Illustratively, if the target module includes modules 202 and 203, the overall controller 201 may send heating instructions to the sub-controller 2021 and sub-controller 2031, respectively. Further, the sub-controller 2021 controls the battery pack 2023 to supply power to the heater 2022 in accordance with the heating instruction to heat the battery pack 2023 by the heater 2022. The sub-controller 2031 controls the battery stack 2033 to supply power to the heater 2032 according to a heating instruction to heat the battery stack 2033 by the heater 2032.

The battery system comprises a master controller and at least one module, wherein the module comprises a sub-controller, a heater and a battery pack. The master controller can send a heating instruction to a target sub-controller in the target module, and the target sub-controller can control the target battery pack to supply power to the target heater according to the heating instruction. That is, in the battery system provided in the present embodiment, the battery pack inside the module is used to supply power to the corresponding heater, and the high voltage box is not required to be used to supply power to the target heater, so that the present embodiment does not need to arrange a high-low voltage conversion cable and an adapter between the high voltage box and each sub-controller, thereby reducing the cost. In addition, the battery pack inside the module is self-powered for the heater, so that the heater does not carry high voltage, such as 48V safety voltage, so that the safety risk of the battery system is reduced.

Fig. 3 is a schematic structural diagram of another battery system according to an embodiment of the present application, and as shown in fig. 3, the module further includes an energy compensator. For example, module 202 includes an energy compensator 301 and module 203 includes an energy compensator 302. The energy compensator may include, but is not limited to, a constant current charger or a flyback power supply, and is used for charging the battery pack.

Taking fig. 3 as an example, the energy compensator 302 may draw power from the power supply lines between the high voltage box and each module. The power of the energy compensator is smaller and can be generally smaller than 50W, for example, the energy compensator 302 can output about 20-30W of electric energy; for another example, the energy compensator 302 may output 25W of electrical energy. It should be noted that, the electric energy output by the energy compensator can be designed according to actual needs. Therefore, a lower power converter can be used in the high voltage box, saving cost. That is, the cost of the energy compensator is far less than that of the high-voltage connector, the high-power converter and the high-current cable, thereby reducing the cost and improving the safety.

Further, the target module includes a target energy compensator. And the target sub-controller is also used for controlling the target energy compensator in the target module to charge the target battery pack under the condition that the target battery pack stops supplying power to the target heater.

Continuing with the example of the target module including the module 202, the battery pack 2023 supplies power to the heater 2022, that is, the battery pack 2023 discharges power, so that the battery pack 2023 supplies power to the heater 2022 to generate power loss. And if the battery pack 2023 is left over-discharged for a long period of time, the safety of the entire battery system is affected. Therefore, in the present embodiment, the sub-controller 2021 is also configured to control the energy compensator 301 to charge the battery pack 2023 in a case where the battery pack 2023 stops supplying power to the heater 2022.

Likewise, the sub-controller 2021 may conduct a power supply line between the energy compensator 301 and the battery 2023 to control the energy compensator 301 to charge the battery 2023. The conduction mode includes, but is not limited to, at least one of a switch, a diode, and a logic circuit.

In this embodiment, the target module further includes the target energy compensator, and the target sub-controller can control the target energy compensator to charge the target battery pack under the condition that the target battery pack stops supplying power to the target heater, so that the situation that the target battery pack is overdischarged after supplying power to the target heater is avoided, and the safety of the battery system is improved.

In an exemplary embodiment, the target sub-controller is further configured to control, according to a heating command, the first switch assembly between the target battery pack and the target heater to be turned on, so as to control the target battery pack to supply power to the target heater; and/or the control device is further used for controlling the second switch assembly between the target battery pack and the target energy compensator to be conducted under the condition that the target battery pack stops supplying power to the target heater so as to control the target energy compensator to charge the target battery pack.

Fig. 4 is a schematic structural diagram of one sub-controller in the embodiment of the present application, taking the sub-controller 2021 as an example, and the other sub-controllers are similar, which is not described herein again.

As shown in fig. 4, the sub-controller 2021 may include a main control chip 401 and a first switching component 402. Wherein the battery pack 2024 is capable of providing power to the heater 2022 when the first switch assembly 402 is on. With the first switch assembly 402 turned off, the battery pack 2024 stops supplying power to the heater 2022.

Optionally, the main control chip 401 is configured to receive a heating instruction sent by the overall controller 201, and turn on the first switch component 402 according to the heating instruction. Therefore, the aim that the target sub-controller controls the first switch component between the target battery pack and the target heater to be conducted according to the heating instruction is achieved.

In this embodiment, the target sub-controller can control the first switch assembly between the target battery pack and the target heater to be turned on according to the heating instruction, so as to control the target battery pack to supply power to the target heater, so that the target battery pack can supply power to the target heater through the target sub-controller efficiently and simply by using the first switch assembly.

Fig. 5 is a schematic structural diagram of another sub-controller according to the embodiment of the present application, and further taking the sub-controller 1021 as an example, as shown in fig. 5, the sub-controller 2021 may further include a second switch assembly 501. Wherein, when the second switch assembly 501 is turned on, the energy compensator 301 of the module 202 is capable of charging the battery 2023; with the second switch assembly 501 turned off, the energy compensator 301 of the module 202 stops charging the battery 2023.

Alternatively, the main control chip 401 may turn off the first switching assembly 402 after receiving a stop heating command input by a user, and determine that the battery pack 2023 stops supplying power to the heater 2022. The main control chip 401 may also periodically determine the temperature of the battery pack 2023 during the heating process, and turn off the first switch assembly 402 and determine that the battery pack 2023 stops supplying power to the heater 2022 when the temperature of the battery pack 2023 reaches the expected temperature, which is not limited in this embodiment.

Further, when it is determined that the battery pack 2023 stops supplying power to the heater 2022, the main control chip 401 may control the second switch assembly 501 to be turned on, so as to control the energy compensator 301 to charge the battery pack 2023. Therefore, the target sub-controller is realized, and the aim of controlling the conduction of the second switch assembly between the target battery pack and the target energy compensator is fulfilled under the condition that the target battery pack stops supplying power to the target heater.

In this embodiment, the target sub-controller can control the second switch assembly between the target battery pack and the target energy compensator to be turned on under the condition that the target battery pack stops supplying power to the target heater, so that the target energy compensator can be controlled to charge the target battery pack efficiently and simply by using the second switch assembly, thereby improving the safety of the battery system.

In some embodiments, the sub-controller 2021 may also include only the main control chip 401 and the second switch assembly 501, so as to control the second switch assembly between the target battery pack and the target energy compensator to be turned on to control the target energy compensator to charge the target battery pack in the case that the target battery pack stops supplying power to the target heater. And will not be described in detail herein.

In an exemplary embodiment, the target sub-controller is further configured to obtain energy consumption of the target battery pack for supplying power to the target heater, and determine a charging parameter for controlling the target energy compensator to charge the target battery pack according to the energy consumption.

Wherein the energy consumption of the power supply is used for representing the energy consumed in the process of supplying power to the target heater by the target battery pack.

Optionally, the target sub-controller may determine the energy consumption according to a power supply parameter of the target battery pack during the power supply process. Wherein the power supply parameter includes, but is not limited to, at least one of a power supply duration, a power supply current, a power supply voltage, a power supply power, and the like.

The target sub-controller may be further configured to obtain a supply current of the target battery pack for supplying power to the target heater, and determine energy consumption of the target battery pack according to the supply current and the supply time period.

With continued reference to fig. 4, the sub-controller 2021 may further include a first detection component 403. The first detecting component 403 is disposed between the heater 2022 and the battery 2023, and is configured to detect a supply current of the battery 2023 for supplying power to the heater 2022.

The first detecting component 403 may periodically obtain a supply current Id1 of the battery pack 2023 for supplying power to the heater 2022, and send the supply current Id1 to the main control chip 401, so that the main control chip 401 obtains the supply current Id1 through the first detecting component 403. Illustratively, the master chip 401 may obtain the supply current Id1 once per second through the first detection component 403.

Further, the main control chip 401 may determine the energy consumption Q1 of the battery 2023 according to the supply current Id1 and the supply period Td 1. For example, the main control chip 401 may determine the power consumption Q1 according to the power consumption q1=supply current Id1×supply duration Td 1.

Further alternatively, the main control chip 401 may periodically determine the energy consumption of the battery 2023 in the period according to the obtained corresponding supply current in the supply period Td1, and sum the energy consumption in all periods, and use the sum result as the energy consumption Q1 of the battery 2023. For example, assuming that Td1 is 10 seconds, the main control chip 401 determines the energy consumption Q1 according to the supply current of the battery 2023 within 0-1 seconds, determines the energy consumption Q2, … … according to the supply current of the battery 2023 within 1-2 seconds, determines the energy consumption Q10 according to the supply current of the battery 2023 within 9-10 seconds, and uses q1+q2+ … … +q10 as the energy consumption Q1 of the battery 2023.

The power supply period Td1 represents the total period of time during which the battery 2023 supplies power to the heater 2022, and may also be understood as the total period of time during which the heater 2022 heats the battery 2023. For example, the main control chip 401 may record the on and off time points of the first switching component 402, and take the duration between the on and off time of the first switching component 402 as the power supply duration Td1.

In this embodiment, the target energy compensator is capable of charging the target battery pack according to the charging parameter. The charging parameters include, but are not limited to, a target length of time for which the target battery pack is charged by the target energy compensator. In some embodiments, the charging parameters may further include a charging current of the target battery pack by the target energy compensator, which is not limited in this embodiment.

Further, the target sub-controller may be further configured to determine a target charging duration for the target energy compensator to charge the target battery pack according to the energy consumption.

Continuing with the above example, the main control chip 401 may determine the target charging period Tc1 for the energy compensator 301 to charge the battery 2023 according to the energy consumption Q1 of the battery 2023. For example, the main control chip 401 divides the energy consumption Q1 by the quotient of the charging current of the energy compensator 301 as the target charging period Tc1, and the charging current of the energy compensator 301 may be a constant value stored in the main control chip 401 in advance.

In the above embodiment, since the target sub-controller can obtain the energy consumption of the target battery pack for supplying power to the target heater, and determine the charging parameter of the target energy compensator for charging the target battery pack according to the energy consumption. Therefore, the target energy compensator can be indicated to charge the target battery pack efficiently and accurately according to the charging parameters, so that the electric quantity of the target battery pack can be accurately controlled, and the use stability of the battery system is improved.

In an exemplary embodiment, the master controller is further configured to receive the energy consumption of the target battery pack sent by each target sub-controller, determine a reference energy according to the energy consumption sent by each target sub-controller, and send the reference energy to the target sub-controller.

Continuing with the example above, each target sub-controller may send the energy consumption of the corresponding target battery pack to the overall controller. For example, the sub-controller 2021 transmits the energy consumption Q1 of the battery stack 2023 to the overall controller 201, and the sub-controller 2031 transmits the energy consumption QN of the battery stack 2033 to the overall controller 201.

Further, after the overall controller 201 receives the energy consumption Q1 transmitted by the sub-controller 2021 and the energy consumption QN transmitted by the sub-controller 2031, the reference energy Qs can be determined from the energy consumption Q1 and the energy consumption QN. Alternatively, the overall controller 201 may use one of the average value, the minimum value, the weighted average value, and the median of the energy consumption transmitted by each target sub-controller as the reference energy Qs.

Illustratively, the overall controller 201 takes the minimum of the energy consumption Q1 and the energy consumption QN as the reference energy Qs. It can be appreciated that if there is only one target module, the overall controller may directly use the energy consumption sent by the target sub-controller as the reference energy Qs.

Thereafter, the overall controller 201 returns the reference energy Qs to each target sub-controller. Continuing with the example of the sub-controller 2021, after the sub-controller 2021 receives the reference energy Qs sent by the overall controller 201, the target energy Qd1 may be determined according to the energy consumption Q1 of the battery pack 2023 and the reference energy Qs.

Wherein the target energy Qd1 includes, but is not limited to, a difference between the energy consumption Q1 and the reference energy Qs. Illustratively, after receiving the reference energy Qs, the main control chip 401 takes the difference between the energy consumption Q1 of the battery pack 2023 and the reference energy Qs as the target energy Qd1.

Further, the target sub-controller is further configured to determine a target energy according to the energy consumption and the reference energy, and determine a charging parameter according to the target energy. Optionally, the target sub-controller may be further configured to obtain a charging current of the target energy compensator for charging the target battery pack, and determine the target charging duration according to the target energy and the charging current.

With continued reference to fig. 5, the sub-controller 2021 may further include a second detection component 502. The second detecting component 502 is disposed between the energy compensator 301 and the battery 2023, and is configured to detect an output current of the energy compensator 301, that is, a charging current Ic1 of the energy compensator 301 for charging the battery 2023.

For example, the second detecting component 502 may obtain the charging current Ic1 of the energy compensator 301 for charging the battery 2023 when the second switch component 501 is turned on, and send the charging current Ic1 to the main control chip 401, so that the main control chip 401 obtains the charging current Ic1 through the second detecting component 502. In some embodiments, the main control chip may also determine the charging current Ic1 according to the current acquired by the second detection component 502 in a period of time, which is not limited in this embodiment.

Further, the main control chip 401 may determine the target charging period Tc1 of the energy compensator 301 according to the target energy Qd1 and the charging current Ic1. Alternatively, the main control chip 401 may determine the target charging period Tc1 according to the target charging period tc1=target energy qd1/charging current Ic1. For example, the main control chip 401 takes the quotient between the target energy Qd1 and the charging current Ic1 as the target charging period Tc1.

Because the battery voltages in the modules are not identical, the rated power of the heater is not identical, so that the heating power of each battery pack is different, the consumed electric quantity of the battery packs is not identical, the energy imbalance of each battery pack in the battery system is caused for a long time, and the safety of the battery system is reduced. Therefore, in this embodiment, the master controller receives the energy consumption of the target battery packs sent by each target sub-controller, and determines the reference energy according to the energy consumption sent by each target sub-controller, so that the reference energy can consider the energy consumption of each battery pack in the battery system. Further, since the master controller will send the reference energy to the target sub-controller, the target sub-controller determines the target energy from the energy consumption and the reference energy, and determines the charging parameter from the target energy. Therefore, after the target battery pack is charged according to the target charging time length, the phenomenon of unbalanced module level caused by the fact that the battery system is heated by the heater can be reduced, and the safety of the battery system is improved.

In an exemplary embodiment, the target sub-controller is further configured to control the target energy compensator to stop charging the target battery pack if a time period during which the target energy compensator charges the target battery pack is greater than or equal to a target charging time period.

Continuing with the above example, when the time period during which the energy compensator 301 charges the battery 2023 is greater than or equal to the target charging time period Tc1, the sub-controller 2021 may control the energy compensator 301 to stop charging the battery 2023. Optionally, after the main control chip 401 determines that the time period for the energy compensator 301 to charge the battery 2023 is greater than or equal to the target charging time period Tc1, the main control chip 401 turns off the second switch assembly 501 to control the energy compensator 301 to stop charging the battery 2023.

In this embodiment, the target sub-controller is further configured to control the target energy compensator to stop charging the target battery pack when the duration of charging the target battery pack by the target energy compensator is greater than or equal to the target charging duration, so that the target battery pack can accurately reach the target energy.

In an exemplary embodiment, the target sub-controller is further configured to send an end signal to the overall controller in the event that the target energy compensator stops charging the target battery pack. And the master controller stops supplying power to the sub-controllers in each module when receiving the end signals sent by the target sub-controllers.

Continuing with the example described above, when the energy compensator 301 stops charging the battery pack 2023, the sub-controller 2021 sends an end signal to the overall controller 201. Alternatively, after the main control chip 401 turns off the second switching element 501, the main control chip 401 may send an end signal to the overall controller 201.

Then, the overall controller 201 stops supplying power to each module when all modules in the battery system are finished charging. In other words, the overall controller 201 may stop supplying power to the sub-controllers in each module upon receiving the end signal transmitted from each target sub-controller.

The target sub-controller of this embodiment is further configured to send an end signal to the overall controller when the target energy compensator stops charging the target battery pack. And the master controller stops supplying power to the sub-controllers in each module when receiving the end signals sent by the target sub-controllers. In this way, the battery system achieves an efficient heating process.

In an exemplary embodiment, the master controller is further configured to send a heating stopping instruction to the target sub-controller when the target module meets a preset heating stopping condition; and the target sub-controller is used for controlling the target battery pack to stop supplying power to the target heater according to the heating stopping instruction so as to stop heating the target battery pack by the target heater.

Illustratively, the sub-controller 2021, upon receiving the stop heating instruction, controls the battery pack 2023 to stop supplying power to the heater 2022 in accordance with the stop heating instruction, so that the heater 2022 stops heating the battery pack 2023. Optionally, after receiving the heating stop command, the main control chip 401 turns off the first switch assembly 402 to control the battery pack 2023 to stop supplying power to the heater 2022.

It should be noted that, in the above example, the master controller supplies power to each module at the same time, and in some embodiments, the master controller may also supply power to each module separately. Wherein, only a pair of cables is needed for unified power supply to each module, and a plurality of pairs of cables are needed for separate power supply to each module.

In this embodiment, the master controller sends a heating stopping instruction to the target sub-controller when the target module meets a preset heating stopping condition, and the target sub-controller controls the target battery pack to stop supplying power to the target heater according to the heating stopping instruction, so that the target heater stops heating the target battery pack, and therefore, the battery system can stop heating in time when the heating needs to be stopped, thereby improving the safety of the heating process.

In an exemplary embodiment, the target sub-controller is further configured to send temperature information of the target battery pack to the overall controller. And the master controller is used for determining that the target module meets the preset heating stopping condition and sending a heating stopping instruction to the target subcontroller when the temperature of each electric core in the target battery pack is greater than the first temperature threshold or when the electric core which is greater than the second temperature threshold exists in the target battery pack.

In this embodiment, the temperature information includes, but is not limited to, a temperature of a battery pack including at least one cell. During the heating process, the sub-controller 2021 may send temperature information of the battery pack 2023 to the overall controller 201. After receiving the temperature information of the battery pack 2023, the overall controller 201 may determine the temperature of each cell in the battery pack 2023, and determine whether the temperature of each cell in the battery pack 2023 is greater than a first temperature threshold, or determine whether the temperature of any cell in the battery pack 2023 is greater than a second temperature threshold. The first temperature threshold is smaller than the second temperature threshold, and can be set according to requirements.

Further, if the temperature of each cell in the battery 2023 is greater than the first temperature threshold, or if the temperature of any cell in the battery 2023 is greater than the second temperature threshold, the overall controller 201 determines that the module 202 satisfies the preset stop heating condition. Further, the overall controller 201 may send a stop heating instruction to the sub-controller 2021.

In this embodiment, the target sub-controller may send temperature information of the target battery pack to the master controller, and the master controller may determine that the target module meets a preset heating stopping condition when the temperature of each cell in the target battery pack is greater than the first temperature threshold or when there is a cell in the target battery pack greater than the second temperature threshold, and send a heating stopping instruction to the target sub-controller, so that accuracy of heating stopping may be improved.

In an exemplary embodiment, the master controller is configured to send a heating instruction to a target sub-controller in the target module when the target module meets a first preset heating condition.

In the present embodiment, continuing the above-described example, the overall controller 201 sends a heating instruction to the sub-controller 2021 in the module 202 in the case where the module 202 satisfies the first preset heating condition. The first preset heating condition may be a heating command input by a user and received by the general controller, or may be other conditions, which is not limited in this embodiment.

In the embodiment, the master controller sends the heating instruction to the target sub-controller in the target module under the condition that the target module meets the first preset heating condition, so that the accuracy of the heating instruction is improved.

In an exemplary embodiment, the master controller is configured to determine that the target module meets the first preset heating condition if the heating confirmation information sent by the target sub-controller is received and/or if the voltage of the target energy compensator is within a preset voltage interval.

Continuing with the above example, the overall controller 201 may determine that the module 202 satisfies the first preset heating condition upon receiving the heating confirmation information sent by the sub-controller 2021 and/or in the case where the voltage of the energy compensator 301 is within the preset voltage interval.

The heating confirmation information transmitted from the sub-controller 2021 may be information transmitted from the sub-controller 2021 to the overall controller in a case where it is confirmed that the battery pack 2023 needs to be heated and can be heated.

The overall controller 201 may acquire the voltage of the energy compensator 401 through a sensor to determine whether the voltage of the energy compensator 401 is within a preset voltage interval.

In this embodiment, the master controller is configured to determine that the target module meets the first preset heating condition if the master controller receives the heating confirmation information sent by the target sub-controller and/or if the voltage of the target energy compensator is within the preset voltage interval, so that flexibility and accuracy of the first preset heating condition are improved.

In an exemplary embodiment, the overall controller is further configured to receive attribute information of the target battery pack sent by the target sub-controller, and send a status query instruction to the target sub-controller according to the attribute information. And the target sub-controller is further used for sending heating confirmation information to the master controller under the condition that the target module meets the second preset heating condition based on the state query instruction.

In the present embodiment, the sub-controller 2021 may send attribute information Of the battery pack 2023 to the overall controller 201, including, but not limited to, at least one Of temperature, state Of Charge (SOC), and the like.

Optionally, during normal operation of the battery system, each sub-controller in the battery system may periodically send attribute information of its own battery pack to the overall controller 201, so that the overall controller 201 determines the target module to be heated.

Further, after receiving the attribute information of the battery pack 2023, the overall controller 201 may send a status query instruction to the sub-controller 2021 according to the attribute information. Alternatively, the overall controller 201 may send a status query instruction to the sub-controller 2021 in the case where the temperature of the battery pack 2023 is less than the expected temperature. That is, the overall controller 201 may send a status query instruction to the sub-controller 2021 in the case where the battery pack 2023 needs to be heated.

Further, after receiving the status query command, the sub-controller 2021 determines whether the module 202 meets the second preset heating condition, and sends a heating confirmation message to the overall controller 201 if the module 202 meets the second preset heating condition. The second preset heating condition may be that the module 202 supports heating.

After that, after the sub-controller 2021 transmits the heating confirmation information to the overall controller 201, the overall controller 201 may transmit a heating instruction to the sub-controller 2021.

In some embodiments, after the sub-controller 2021 sends the heating confirmation information to the overall controller 201, the overall controller 201 further determines whether the voltage of the energy compensator 301 is within a preset voltage interval, and sends a heating command to the sub-controller 2021 if the voltage of the energy compensator 301 is within the preset voltage interval. Therefore, whether the power supply of the target energy compensator is connected or not can be timely judged, and the subsequent charging efficiency is improved.

In the embodiment, the master controller can receive the attribute information of the target battery pack sent by the target sub-controller and send the state query instruction to the target sub-controller according to the attribute information, and the target sub-controller can send the heating confirmation information to the master controller based on the state query instruction under the condition that the target module meets the second preset heating condition, so that the accuracy and the safety of the battery system in the heating process are improved.

In an exemplary embodiment, the target module meeting the second preset heating condition includes at least one of: the temperature of the target battery pack is located in a preset temperature interval; the target module supports heating.

The preset temperature interval can be set according to requirements, whether the target module supports heating or not can be stored in the sub-controller in advance, and the sub-controller can inquire whether the target module supports heating or not.

For example, the sub-controller 2021 may determine that the module 202 satisfies the second preset heating condition to send the heating confirmation information to the overall controller 201 in the case where the temperature of the battery pack 2023 is within the preset temperature interval and the module 202 supports heating.

In this embodiment, the target module is determined to satisfy the second preset heating condition when the second preset heating condition is satisfied, including at least one of the temperature of the target battery pack being in the preset temperature range and the target module supporting heating, so that the safety in the heating process is improved.

Based on the same inventive concept, the embodiments of the present application further provide a heating method, which provides a solution to the problem similar to the implementation described in the battery system, so specific limitations in one or more embodiments of the heating method provided below may be referred to the above limitations on the battery system, and will not be repeated herein.

Fig. 6 is a schematic flow chart of a heating method according to an embodiment of the present application, and in an exemplary embodiment, as shown in fig. 6, a heating method is provided, and the application of the method to the sub-controller in fig. 1 is taken as an example and described below, including S601 to S602.

S601, receiving a heating instruction sent by the master controller.

S602, controlling the target battery pack in the target module to supply power to the target heater in the target module according to the heating instruction so as to heat the target battery pack by the target heater.

In the heating method, the master controller can send the heating instruction to the target sub-controller in the target module, and the target sub-controller can control the target battery pack to supply power to the target heater according to the heating instruction, so that the battery pack in the module can be used for supplying power to the corresponding heater without using the high-voltage box to supply power to the target heater, and therefore, the embodiment does not need to arrange a high-low voltage conversion cable and an adapter between the high-voltage box and each sub-controller, and the cost is reduced. In addition, the battery pack inside the module is self-powered for the heater, so that the heater does not carry high voltage, such as 48V safety voltage, so that the safety risk of the battery system is reduced.

In an exemplary embodiment, S602 may be implemented as follows:

and controlling the first switch assembly between the target battery pack and the target heater to be conducted according to the heating instruction so as to control the target battery pack to supply power to the target heater.

In an exemplary embodiment, the heating method further includes the steps of:

and controlling the target energy compensator to charge the target battery pack when the target battery pack stops supplying power to the target heater.

In one exemplary embodiment, the above-described "controlling the target power supply device to charge the target battery pack in the case where the target battery pack stops supplying power to the target heater" may be implemented by:

and under the condition that the target battery pack stops supplying power to the target heater, controlling the second switch assembly between the target battery pack and the target energy compensator to be conducted so as to control the target energy compensator to charge the target battery pack.

Fig. 7 is a schematic flow chart of determining a target charging duration in an embodiment of the present application, and in an exemplary embodiment, as shown in fig. 7, the heating method further includes S701 to S702.

S701, obtaining the energy consumption of the target battery pack for supplying power to the target heater.

S702, determining a charging parameter of the target energy compensator for charging the target battery pack according to the energy consumption.

In an exemplary embodiment, S702 may include: acquiring a power supply current of a target battery pack for supplying power to a target heater; and determining the energy consumption of the target battery pack according to the power supply current and the power supply duration.

In an exemplary embodiment, S703 described above may be implemented as follows: and determining a target charging duration of the target energy compensator for charging the target battery pack according to the energy consumption.

Fig. 8 is a schematic flow chart of still another embodiment of determining a target charging duration, and in an exemplary embodiment, as shown in fig. 8, S702 includes S801 to S803.

S801, receiving reference energy sent by a master controller, wherein the reference energy is determined according to the energy consumption of each target sub-controller.

S802, determining target energy according to the energy consumption and the reference energy.

S803, determining a charging parameter according to the target energy.

In an exemplary embodiment, the step S803 further includes: acquiring a charging current of a target energy compensator for charging a target battery pack; and determining the target charging duration according to the target energy and the charging current.

In an exemplary embodiment, the heating method further includes the steps of:

And controlling the target energy compensator to stop charging the target battery pack under the condition that the time length of charging the target battery pack by the target energy compensator is longer than or equal to the target charging time length.

In an exemplary embodiment, the heating method further includes the steps of:

and when the target energy compensator stops charging the target battery pack, sending an end signal to the master controller, and when the master controller receives the end signal sent by each sub-controller, stopping power supply to the sub-controllers in each module.

Fig. 9 is a schematic flow chart of determining to stop heating in the embodiment of the present application, and in an exemplary embodiment, as shown in fig. 9, the heating method further includes S901 to S902.

S901, receiving a heating stop instruction; the heating stop instruction is an instruction sent by the master controller under the condition that the target module meets the preset heating stop condition.

And S902, controlling the target battery pack to stop supplying power to the target heater according to the heating stopping instruction so as to stop heating the target battery pack by the target heater.

In an exemplary embodiment, the step S901 further includes the following steps:

and receiving a heating instruction under the condition that the target module meets the first preset heating condition.

The first preset heating condition may refer to the above embodiment, and will not be described herein.

The above describes the execution of the heating method in the sub-controller, and the following describes the execution of the heating method in the overall controller. In an exemplary embodiment, a heating method is provided, and the method is applied to the overall controller in fig. 1 as an example, and includes the following steps:

In one embodiment, the heating method further comprises the steps of:

and under the condition that the target module meets the preset heating stopping condition, sending a heating stopping instruction to the target sub-controller so as to control the target battery pack to stop supplying power to the target heater according to the heating stopping instruction, and stopping heating the target battery pack by the target heater.

The process of executing the heating method by the master controller may also refer to the above-mentioned embodiment of the battery system, and will not be described herein.

To more clearly describe the heating method in this application, it is described herein with reference to fig. 10. Fig. 10 is a schematic process diagram of a heating method according to an embodiment of the present application, as shown in fig. 10, and referring to fig. 2 and 5, the above battery system may perform the heating method according to the following procedure.

S1001, the master controller receives attribute information of the corresponding battery packs sent by each sub-controller, and sends a state query instruction to the target sub-controller according to the attribute information of each battery pack.

S1002, the target sub-controller sends heating confirmation information to the master controller based on the state query instruction under the condition that the target module meets the second preset heating condition. The second preset heating condition comprises that the temperature of the target battery pack is located in a preset temperature range, and the target module supports heating.

And S1003, the master controller sends a heating instruction to the target sub-controller according to the heating confirmation information when the voltage of the target energy compensator is within a preset voltage interval.

And S1004, the target sub-controller controls the first switch assembly between the target battery pack and the target heater to be conducted according to the heating instruction so as to control the target battery pack to supply power to the target heater.

S1005, in the process that the target battery pack supplies power to the target heater, the target sub-controller obtains the power supply current of the target battery pack for supplying power to the target heater, and determines the energy consumption of the target battery pack according to the power supply current and the power supply time.

S1006, in the process that the target battery pack supplies power to the target heater, the target sub-controller sends temperature information of the target battery pack to the master controller.

And S1007, determining that the target module meets the preset heating stopping condition and sending a heating stopping instruction to the target subcontroller when the temperature of each electric core in the target battery pack is greater than a first temperature threshold or when the electric core which is greater than a second temperature threshold exists in the target battery pack by the master controller.

And S1008, the target sub-controller controls the target battery pack to stop supplying power to the target heater according to the heating stop instruction so as to stop heating the target battery pack by the target heater.

In S1009, the target sub-controller controls the second switch assembly between the target battery pack and the target energy compensator to be turned on to control the target energy compensator to charge the target battery pack in the case where the target battery pack stops supplying power to the target heater.

S1010, the target sub-controller determines target energy according to the energy consumption and the reference energy, and acquires charging current of the target energy compensator for charging the target battery pack so as to determine target charging duration according to the target energy and the charging current.

And S1011, the target sub-controller controls the target energy compensator to stop charging the target battery pack under the condition that the time length of charging the target battery pack by the target energy compensator is longer than or equal to the target charging time length.

S1012, the target sub-controller transmits an end signal to the master controller when the target energy compensator stops charging the target battery pack.

And S1013, when the master controller receives the end signals sent by the target sub-controllers, stopping power supply to the sub-controllers in the modules.

S1001 to S1013 can refer to the above embodiments, and are not described herein. Therefore, the battery pack is used for supplying power to the heater, so that self-heating of the module battery is realized, the energy compensator is used for charging the battery pack, module balance is realized, the cost can be reduced, and the safety of a battery system is improved.

In some embodiments, in addition to heating, the modules in the battery system may be self-powered for other power consuming components, such as fans, refrigeration equipment, and the like. That is, the battery system provided in this embodiment can be used for self-heating of modules, and also can be applied to all self-powered devices of modules, such as a high-power fan in a module, or an active refrigeration device.

It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

Based on the same inventive concept, the embodiments of the present application also provide a heating device for implementing the above-mentioned heating method. The implementation of the solution provided by the device is similar to that described in the above method, so specific limitations in one or more embodiments of the heating device provided below may be referred to above for limitations of the heating method, and will not be repeated here.

Fig. 11 is a block diagram illustrating a heating apparatus according to an embodiment of the present application, and in an exemplary embodiment, as shown in fig. 11, there is provided a heating apparatus 1100 including: a first receiving module 1101 and a heating module 1102, wherein:

the first receiving module 1101 is configured to receive a heating instruction sent by the overall controller.

And the heating module 1102 is used for controlling the target battery pack in the target module to supply power to the target heater in the target module according to the heating instruction so as to heat the target battery pack by the target heater.

In the heating device, the master controller can send a heating instruction to the target sub-controller in the target module, and the target sub-controller can control the target battery pack to supply power to the target heater according to the heating instruction, so that the battery pack in the module can be used for supplying power to the corresponding heater without using the high-voltage box to supply power to the target heater, and therefore, the embodiment does not need to arrange a high-low voltage conversion cable and an adapter between the high-voltage box and each sub-controller, and the cost is reduced. In addition, the battery pack inside the module is self-powered for the heater, so that the heater does not carry high voltage, such as 48V safety voltage, so that the safety risk of the battery system is reduced.

In the above-mentioned heating device, the heating means may be a heating device,

optionally, the heating module 1102 is further configured to control, according to a heating instruction, the first switch assembly between the target battery pack and the target heater to be turned on, so as to control the target battery pack to supply power to the target heater.

Optionally, the heating device 1100 further includes:

and the charging module is used for controlling the target energy compensator to charge the target battery pack under the condition that the target battery pack stops supplying power to the target heater.

Optionally, the charging module is further configured to control the second switch assembly between the target battery pack and the target energy compensator to be turned on when the target battery pack stops supplying power to the target heater, so as to control the target energy compensator to charge the target battery pack.

Optionally, the heating device 1100 further includes:

and the acquisition module is used for acquiring the energy consumption of the target battery pack for supplying power to the target heater.

And the first determining module is used for determining a charging parameter of the target energy compensator for charging the target battery pack according to the energy consumption.

Optionally, the first determining module includes:

and the receiving unit is used for receiving the reference energy sent by the master controller, and the reference energy is determined according to the energy consumption of each target sub-controller.

And the first determining unit is used for determining target energy according to the energy consumption and the reference energy.

And the second determining unit is used for determining the charging parameter according to the target energy.

Optionally, the heating device 1100 further includes:

and the stopping charging module is used for controlling the target energy compensator to stop charging the target battery pack under the condition that the time length of charging the target battery pack by the target energy compensator is longer than or equal to the target charging time length.

Optionally, the heating device 1100 further includes:

and the transmitting module is used for transmitting an end signal to the master controller when the target energy compensator stops charging the target battery pack, so that the master controller stops supplying power to the sub-controllers in each module when receiving the end signal transmitted by each sub-controller.

Optionally, the heating device 1100 further includes:

the second receiving module is used for receiving the heating stopping instruction; the heating stopping instruction is an instruction sent by the master controller under the condition that the target module meets the preset heating stopping condition;

and the heating stopping module is used for controlling the target battery pack to stop supplying power to the target heater according to the heating stopping instruction so as to stop heating the target battery pack by the target heater.

Optionally, the first receiving module 1101 is further configured to receive a heating instruction if the target module meets a first preset heating condition.

Fig. 12 is a block diagram of a heating device according to another embodiment of the present application, and in an exemplary embodiment, as shown in fig. 12, there is provided a heating device including:

and the sending module 1201 is used for sending a heating instruction to the target sub-controller in the target module, so that the target sub-controller controls the target battery pack in the target module to supply power to the target heater in the target module according to the heating instruction, and the target heater heats the target battery pack.

Optionally, the first receiving module is further configured to receive a heating instruction when the target module meets a first preset heating condition.

The various modules in the heating device described above may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.

Fig. 13 is an internal structural diagram of a computer device in an embodiment of the present application, and in an exemplary embodiment, a computer device is provided, which may be a server, and the internal structural diagram may be as shown in fig. 13. The computer device includes a processor, a memory, an Input/Output interface (I/O) and a communication interface. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface is connected to the system bus through the input/output interface. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer device is used to store 13 data. The input/output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a heating method.

It will be appreciated by those skilled in the art that the structure shown in fig. 13 is merely a block diagram of some of the structures associated with the present application and is not limiting of the computer device to which the present application may be applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.

In an exemplary embodiment, a computer device is provided, comprising a memory and a processor, the memory having stored therein a computer program, the processor performing the steps of the method embodiments described above when the computer program is executed.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, implements the steps of the method embodiments described above.

In an embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the method embodiments described above.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric RandomAccess Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can take many forms, such as static Random access memory (Static Random Access Memory, SRAM) or Dynamic Random access memory (Dynamic Random AccessMemory, DRAM), among others. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.

Claims

1. A battery system comprising a master controller and at least one module, the module comprising a sub-controller, a heater and a battery pack;

2. The battery system of claim 1, wherein the module further comprises an energy compensator;

and the target sub-controller is further used for controlling a target energy compensator in the target module to charge the target battery pack under the condition that the target battery pack stops supplying power to the target heater.

3. The battery system of claim 2, wherein the target subcontroller is further configured to control a first switch assembly between the target battery pack and the target heater to be turned on in response to the heating command to control the target battery pack to power the target heater; and/or the battery pack control device is further used for controlling the second switch assembly between the target battery pack and the target energy compensator to be conducted under the condition that the target battery pack stops supplying power to the target heater so as to control the target energy compensator to charge the target battery pack.

4. The battery system of claim 2, wherein the target subcontroller is further configured to obtain energy consumption of the target battery pack to power the target heater, and determine a charging parameter for controlling the target energy compensator to charge the target battery pack based on the energy consumption.

5. The battery system of claim 4, wherein the overall controller is further configured to receive the energy consumption of the target battery pack transmitted by each of the target sub-controllers, determine a reference energy according to the energy consumption transmitted by each of the target sub-controllers, and transmit the reference energy to the target sub-controllers;

the target subcontroller is further configured to determine a target energy according to the energy consumption and the reference energy, and determine the charging parameter according to the target energy.

6. The battery system of any one of claims 1-5, wherein the target subcontroller is further configured to send temperature information for the target battery pack to the overall controller;

and the master controller is used for determining that the target module meets the preset heating stopping condition and sending a heating stopping instruction to the target subcontroller when the temperature of each electric core in the target battery pack is greater than a first temperature threshold or when the electric core which is greater than a second temperature threshold exists in the target battery pack.

7. The battery system of any one of claims 1-5, wherein the overall controller is configured to send the heating command to a target subcontroller in the target module if the target module meets a first preset heating condition.

8. The battery system of claim 7, wherein the overall controller is configured to determine that the target module meets the first preset heating condition if the heating confirmation information sent by the target sub-controller is received and/or the voltage of the target energy compensator is within a preset voltage interval.

9. The battery system of claim 8, wherein the overall controller is further configured to receive attribute information of the target battery pack sent by the target sub-controller, and send a status query instruction to the target sub-controller according to the attribute information;

and the target sub-controller is used for sending the heating confirmation information to the master controller under the condition that the target module meets the second preset heating condition based on the state query instruction.

10. The battery system of claim 9, wherein the target module meeting a second preset heating condition comprises at least one of;

the temperature of the target battery pack is located in a preset temperature interval;

the target module supports heating.

11. A method of heating, the method comprising:

Receiving a heating instruction sent by a master controller;

and controlling a target battery pack in a target module to supply power to a target heater in the target module according to the heating instruction so as to heat the target battery pack by the target heater.

12. The method of claim 11, wherein the method further comprises:

and under the condition that the target battery pack stops supplying power to the target heater, controlling a target energy compensator in the target module to charge the target battery pack.

13. The method according to claim 12, wherein the method further comprises:

acquiring the energy consumption of the target battery pack for supplying power to the target heater;

and determining a charging parameter of the target energy compensator for charging the target battery pack according to the energy consumption.

14. The method of claim 13, wherein the determining a charging parameter of the target energy compensator for charging the target battery based on the energy consumption comprises:

receiving reference energy sent by the master controller, wherein the reference energy is determined according to the energy consumption of each target sub-controller;

Determining a target energy from the energy consumption and the reference energy;

and determining the charging parameter according to the target energy.

15. The method according to any one of claims 11-14, wherein receiving the heating command sent by the master controller comprises:

and receiving the heating instruction under the condition that the target module meets a first preset heating condition.

16. A method of heating, the method comprising:

and sending a heating instruction to a target sub-controller in a target module, so that the target sub-controller controls a target battery pack in the target module to supply power to a target heater in the target module according to the heating instruction, and the target heater heats the target battery pack.

17. A heating device, the device comprising:

18. A heating device, the device comprising:

and the sending module is used for sending a heating instruction to a target sub-controller in the target module, so that the target sub-controller controls the target battery pack in the target module to supply power to the target heater in the target module according to the heating instruction, and the target heater heats the target battery pack.

19. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 11 to 16 when the computer program is executed.

20. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 11 to 16.