Full-time management method and device of battery, battery controller and storage medium

Abstract

The application discloses a kind of battery's whole-time management method, device, battery controller and storage medium, wherein the whole-time management method of battery includes: obtaining the temperature of the battery cell, and determine the current operating mode of battery and the current location of battery;Based on current operating mode and current location, determine the heating strategy of battery, wherein the heating strategy includes: using the battery charger of battery swap station to heat preservation heating battery, using the internal circuit of battery to self-heating battery;According to current operating mode and battery cell temperature, using the heating strategy determined to heat battery.The method determines the heating strategy of battery according to current operating mode and current location, uses the internal circuit of battery or charger to heat battery in different scenarios, meets the battery thermal management in whole scene, so that battery can be used immediately in all scenarios, improve operational efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery heating, in particular to a full-time management method and device of battery, a battery controller and a storage medium. BACKGROUND

[0002] At present, in the battery replacement mode, the battery is mainly stored in two positions, namely the vehicle interior and the battery replacement station. When the battery is in the battery replacement station, when the external environment is relatively cold, the battery has a low temperature after a long time of storage, which leads to a significant decrease in the charge and discharge capacity of the battery, so that the battery cannot be used in time, thereby affecting the operation efficiency. SUMMARY

[0003] The present application aims to at least solve one of the technical problems in the related art. To this end, the first object of the present application is to provide a full-time management method of battery, which determines the heating strategy of the battery according to the current operation mode and the current location, and uses the charger or the internal circuit of the battery to heat the battery in different scenarios, thereby meeting the battery thermal management in all scenarios, so that the battery can be used immediately in all scenarios, and the operation efficiency is improved.

[0004] The second object of the present application is to provide a computer readable storage medium.

[0005] The third object of the present application is to provide a battery controller.

[0006] The fourth object of the present application is to provide a full-time management device of battery.

[0007] To achieve the above objects, according to the first aspect of the present application, a full-time thermal management method of battery is provided, comprising: obtaining the cell temperature of the battery, and determining the current operation mode of the battery and the current location of the battery; determining the heating strategy of the battery based on the current operation mode and the current location, wherein the heating strategy includes: using the battery replacement station charger to heat the battery, and using the internal circuit of the battery to heat the battery; and heating the battery according to the current operation mode and the cell temperature, and using the determined heating strategy.

[0008] The full-time thermal management method of the battery according to the embodiment of the present application obtains the cell temperature of the battery, determines the current operation mode of the battery and the current location of the battery, and determines the heating strategy of the battery according to the current operation mode and the current location, that is, according to the current application scenario, the battery is heated by the charging machine of the battery swap station or self-heated by the internal circuit of the battery, so that the battery is heated by the determined heating strategy according to the current operation mode and the cell temperature, the temperature of the battery is increased, and the battery thermal management in all scenarios is realized, so that the battery can be used immediately in all scenarios, thereby improving the operation efficiency.

[0009] According to an embodiment of the present application, when the current location of the battery is the battery swap station and the current operation mode is the battery swap mode, the heating strategy is to heat the battery by the charging machine of the battery swap station.

[0010] According to an embodiment of the present application, when the current location of the battery is the vehicle and the current operation mode is the driving mode, the heating strategy is to self-heat the battery by the internal circuit of the battery.

[0011] According to an embodiment of the present application, when the current location of the battery is the vehicle and the current operation mode is the charging mode, the heating strategy is to heat the battery by the charging pile.

[0012] According to an embodiment of the present application, when the current location of the battery is the vehicle and the current operation mode is the timing heating mode, the heating strategy is to self-wake up according to the timing wake-up instruction and self-heat the battery by the internal circuit of the battery.

[0013] According to an embodiment of the present application, the vehicle is provided with a low-voltage power supply to provide power for the battery management system of the battery when the vehicle is powered off.

[0014] According to an embodiment of the present application, when the current location of the battery is the vehicle and the current operation mode is the reservation heating mode, the heating strategy is to self-heat the battery by the internal circuit of the battery in response to the wake-up instruction of the vehicle, wherein the wake-up instruction is generated according to the reservation heating instruction of the user.

[0015] According to an embodiment of the present application, the battery is heated by the determined heating strategy according to the current operation mode and the cell temperature, comprising: determining the heating start condition corresponding to the current operation mode; and heating the battery by the determined heating strategy when the cell temperature meets the heating start condition.

[0016] According to one of the embodiments of the present application, after the battery is heated by using the determined heating strategy when the battery cell temperature meets the heating start condition, the method further comprises: determining a heating stop condition corresponding to the current operation mode; and stopping heating the battery when the battery cell temperature meets the heating stop condition.

[0017] To achieve the above object, according to a second aspect of the present application, a computer readable storage medium is provided, which stores a battery full-time thermal management program. When the battery full-time thermal management program is executed by a processor, the battery full-time thermal management method of any of the above embodiments is implemented.

[0018] According to the computer readable storage medium of the embodiments of the present application, by executing the above battery full-time thermal management program, the heating strategy of the battery is determined according to the current operation mode and the current location. In different scenarios, the battery is heated by using the charger or the internal circuit of the battery, which meets the battery thermal management in all scenarios. Therefore, the battery can be used immediately in all scenarios, and the operation efficiency is improved.

[0019] To achieve the above object, according to a third aspect of the present application, a battery controller is provided, which comprises a memory, a processor, and a battery full-time thermal management program stored in the memory and executable on the processor. When the processor executes the battery full-time thermal management program, the battery full-time thermal management method of any of the above embodiments is implemented.

[0020] According to the battery controller of the embodiments of the present application, by executing the above battery full-time thermal management program by the processor, the heating strategy of the battery is determined according to the current operation mode and the current location. In different scenarios, the battery is heated by using the charger or the internal circuit of the battery, which meets the battery thermal management in all scenarios. Therefore, the battery can be used immediately in all scenarios, and the operation efficiency is improved.

[0021] To achieve the above object, according to a fourth aspect of the present application, a battery full-time thermal management device is provided, which comprises: an acquisition module configured to acquire a battery cell temperature of a battery; a first determination module configured to determine a current operation mode of the battery and a current location of the battery; a second determination module configured to determine a heating strategy of the battery based on the current operation mode and the current location, wherein the heating strategy comprises: using a charger of a battery swap station to heat the battery, and using an internal circuit of the battery to heat the battery; and a heating module configured to heat the battery by using the determined heating strategy according to the current operation mode and the battery cell temperature.

[0022] The all-time thermal management device of the battery according to the embodiment of the application obtains the cell temperature of the battery through the obtaining module, determines the current operation mode of the battery and the current location of the battery through the first determining module, and determines the heating strategy of the battery according to the current operation mode and the current location through the second determining module, that is, according to the current application scenario, the battery is heated by the charging machine of the battery swap station or self-heated by the internal circuit of the battery, so that the battery is heated by the heating module according to the current operation mode and the cell temperature by using the determined heating strategy, so that the temperature of the battery is increased, and the battery thermal management in all scenarios is realized, so that the battery can be used immediately in all scenarios, thereby improving the operation efficiency.

[0023] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following description and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a flowchart of an all-time thermal management method of a battery according to an embodiment of the application;

[0025] Figure 2 is a flowchart of heating a battery according to a current operation mode and a cell temperature according to an embodiment of the application;

[0026] Figure 3 is a flowchart of stopping a battery according to a current operation mode and a cell temperature according to an embodiment of the application;

[0027] Figure 4 is a system diagram of a battery controller according to an embodiment of the application;

[0028] Figure 5 is a structure diagram of an all-time thermal management device of a battery according to an embodiment of the application. DETAILED DESCRIPTION

[0029] Embodiments of the application are described in detail below with reference to the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the application, and cannot be understood as a limitation of the application.

[0030] It should be noted that the present application is made by the inventor's understanding and research on the following problems:

[0031] In the related art, the thermal management scheme of the battery is shown in Table 1:

[0032] Table 1

[0033]

[0034] The on-the-go heating refers to that when the battery is in the vehicle and the vehicle is in the driving process, the BMS (Battery Management System) of the battery detects that the temperature of the battery cell meets the heating start condition, and the internal circuit of the battery is used for self-heating of the battery. When the BMS of the battery detects that the temperature of the battery cell meets the heating stop condition, the self-heating of the battery is stopped.

[0035] The charging heating includes battery charging heating at the battery swap station and battery charging heating when the battery is in the vehicle. When the battery is heated at the battery swap station, the BMS of the battery is heated by the charger of the battery swap station while the charger of the battery swap station charges the battery; when the battery is in the vehicle and the vehicle is charged by the charging pile, the BMS of the battery is heated by the charging pile for charging the vehicle.

[0036] Therefore, the heat management scheme in the related art only heats the battery during the driving of the vehicle and the charging of the battery, and the battery cannot be heated after the vehicle is powered off or the charging at the battery swap station is completed. When the external environment is relatively cold, the temperature of the battery is low after a long time of storage, which significantly reduces the charge and discharge capacity of the battery, so that the battery cannot be used in time, thereby affecting the operation efficiency.

[0037] Based on this, an embodiment of the present application provides a full-time management method and device of a battery, a battery controller and a storage medium. According to the current running mode and the current location, the heating strategy of the battery is determined, and the battery is heated by the charger or the internal circuit of the battery in different scenarios, so that the battery heat management in all scenarios is met. Therefore, the battery can be used immediately in all scenarios, and the operation efficiency is improved.

[0038] The full-time management method, device, battery controller and storage medium of the battery of the embodiment of the present application are described below with reference to the accompanying drawings.

[0039] Figure 1 is a flow diagram of the full-time heat management method of the battery according to an embodiment of the present application. As shown in Figure 1 The full-time heat management method of the battery includes the following steps:

[0040] S101, the temperature of the battery cell is obtained, and the current running mode of the battery and the current location of the battery are determined.

[0041] Specifically, the method of the embodiment can be applied to the BMS of the battery. The temperature of the battery cell can be detected by a temperature sensor inside the battery. After the temperature sensor detects the temperature of the battery cell, the data is transmitted to the BMS of the battery. The current operation mode includes the battery replacement mode, the driving mode, the charging mode, the timing heating mode, and the reservation heating mode. The current location includes the battery replacement station and the vehicle.

[0042] In S102, a heating strategy of the battery is determined based on the current operation mode and the current location. The heating strategy includes: using the charger of the battery replacement station to perform insulation heating on the battery, and using the internal circuit of the battery to perform self-heating on the battery.

[0043] Specifically, as shown in Table 2, according to the current operation mode and the current location, it is determined to use which way to heat the battery.

[0044] Table 2

[0045]

[0046] For different operation modes and locations of the battery, different heating strategies are formulated. When the battery is connected with the charger or the charging pile, the insulation heating is performed by using the charger or the charging pile. When the battery is not connected with the charger, the self-heating is performed by using the internal circuit of the battery.

[0047] In some embodiments, as shown in Table 2, when the current location of the battery is the battery replacement station and the current operation mode is the battery replacement mode, the heating strategy is to use the charger of the battery replacement station to perform insulation heating on the battery.

[0048] It should be noted that when the battery is in the battery replacement station, the charger of the battery replacement station is always in the inserted state. Therefore, the insulation heating can be performed on the battery by using the charger of the battery replacement station, instead of using the internal circuit to perform self-heating, without consuming the power of the battery itself for heating.

[0049] In the above embodiment, when the battery is in the battery replacement station, the insulation heating is performed on the battery by using the charger of the battery replacement station, so that the battery in the battery replacement station is heated. In addition, when the battery is heated in the battery replacement station, the power of the battery itself is not consumed, so that the power of the battery is saved.

[0050] In some embodiments, as shown in Table 2, when the current location of the battery is the vehicle and the current operation mode is the driving mode, the heating strategy is to use the internal circuit of the battery to perform self-heating on the battery.

[0051] It can be understood that when the current location of the battery is the vehicle and the current operation mode is the driving mode, it indicates that the vehicle is in the driving state, at this time the vehicle is not connected with the charger or the charging pile, and cannot be heated by the external power supply, therefore, the battery needs to be self-heated by the internal circuit of the battery.

[0052] In some embodiments, as shown in Table 2, when the current location of the battery is the vehicle and the current operation mode is the charging mode, the heating strategy is to heat the battery by the charging pile.

[0053] That is to say, when the current location of the battery is the vehicle and the current operation mode is the charging mode, the vehicle is in the powered-off state, and the vehicle is connected to the national standard charging pile for charging, therefore, the battery can be heated by the charging pile, and does not need to consume the power of the battery itself for heating.

[0054] In some embodiments, as shown in Table 2, when the current location of the battery is the vehicle and the current operation mode is the timing heating mode, the heating strategy is to self-wake up according to the timing wake-up instruction, and to self-heat the battery by the internal circuit of the battery.

[0055] Specifically, when the current location of the battery is the vehicle and the current operation mode is the timing heating mode, the vehicle is in the powered-off state, and the battery is in the independent storage state, that is, the battery is not connected with any external power supply, and the BMS of the battery is in the sleep state, the user can set the BMS of the battery to wake up at a timing, and when the BMS of the battery wakes up, the BMS of the battery heats the battery at a timing by the internal circuit of the battery.

[0056] It should be noted that the user can also set the vehicle to wake up at a timing in the vehicle or the battery replacement program, and then the vehicle wakes up the BMS of the battery, and when the BMS of the battery wakes up, the BMS of the battery heats the battery at a timing by the internal circuit of the battery.

[0057] In an optional embodiment, the number of times of waking up of the BMS of the battery is less than or equal to 6, that is, the number of times of timing self-heating of the battery is less than or equal to 6, and if the number of times of timing self-heating of the battery is too much, it is possible to cause the power of the battery to be too low.

[0058] Further, in some embodiments, the vehicle is provided with a low-voltage power supply to provide power for the battery management system of the battery when the vehicle is powered off.

[0059] Specifically, because the vehicle is in the powered-off state, if there is no low-voltage power supply in the vehicle and the battery management system has no power supply for power supply, the battery management system cannot be self-woken up, therefore, it is necessary to add a low-voltage power supply in the vehicle, and when the vehicle is powered off, the low-voltage power supply is switched to supply power to the battery management system, so that the battery management system can be self-woken up.

[0060] In an alternative way, the vehicle is further provided with a relay, which is arranged between the low-voltage power supply and the power management system of the battery. When the vehicle is powered off, the relay is attracted to enable the low-voltage power supply to supply power to the battery management system.

[0061] In the above embodiment, by arranging the low-voltage power supply inside the vehicle to supply power to the battery management system when the vehicle is powered off, the battery management system can be self-woken up when the vehicle is powered off. After the battery management system is self-woken up, the internal circuit of the battery is used to perform timed self-heating on the battery, so that the battery can be heated when the vehicle is powered off without affecting the normal use of the battery.

[0062] In some embodiments, as shown in Table 2, when the current location of the battery is the vehicle and the current running mode is the pre-heat mode, the heating strategy is to perform self-heating on the battery by using the internal circuit of the battery in response to a wake-up instruction of the vehicle, wherein the wake-up instruction is generated according to a pre-heat instruction of the user.

[0063] Specifically, when the current location of the battery is the vehicle and the current running mode is the pre-heat mode, the vehicle is in a powered-off state, the user generates a pre-heat instruction by pre-heating on the vehicle or the battery replacement program, and then the vehicle wakes up the BMS of the battery according to the pre-heat instruction. The BMS of the battery responds to the wake-up instruction of the vehicle and performs timed self-heating on the battery by using the internal circuit of the battery.

[0064] It should be noted that in the pre-heat mode, the BMS can also be self-woken up, and then the BMS performs timed self-heating on the battery by using the internal circuit of the battery, which is not limited here.

[0065] In the above embodiment, when the vehicle is powered off, the vehicle can wake up the BMS according to the pre-heat instruction of the user, and the BMS performs self-heating on the battery by using the internal circuit of the battery, so that the battery can be heated when the vehicle is powered off.

[0066] S103, according to the current running mode and the cell temperature, the battery is heated by using the determined heating strategy.

[0067] Specifically, the heating on condition and the heating off condition corresponding to different running modes can be different, so it is necessary to determine the current heating on condition and the heating off condition according to the current running mode. If the cell temperature meets the heating on condition, the battery is heated by using the determined heating strategy; if the cell temperature does not meet the heating on condition, the battery does not need to be heated.

[0068] In some embodiments, as shown in Table 2, when the current location of the battery is the vehicle and the current running mode is the pre-heat mode, the heating strategy is to perform self-heating on the battery by using the internal circuit of the battery in response to a wake-up instruction of the vehicle, wherein the wake-up instruction is generated according to a pre-heat instruction of the user. Figure 2As shown, according to the current operation mode and the cell temperature, the battery is heated by using the determined heating strategy, including:

[0069] S201, determine the heating start condition corresponding to the current operation mode.

[0070] Specifically, as shown in Table 2, the heating start condition corresponding to the battery replacement mode is T_min≤17℃ and T_max≤28℃; the heating start condition corresponding to the driving mode is T_min≤12℃ and T_max≤28℃; the heating start condition corresponding to the charging mode is T_min≤17℃ and T_max≤28℃; the heating start condition corresponding to the timing heating mode is SOC≥30% and T_min≤5℃ and T_max≤16℃; and the heating start condition corresponding to the pre-booking heating mode is T_min≤17℃ and T_max≤28℃.

[0071] It should be noted that in the timing heating mode, the SOC of the battery also needs to be obtained. If the SOC of the battery is too low, the battery will not be self-heated to prevent the battery from being repeatedly heated in the timing mode, causing the battery to be too low in power, so that the vehicle cannot be normally started.

[0072] S202, when the cell temperature meets the heating start condition, the battery is heated by using the determined heating strategy.

[0073] That is, when the cell temperature is within the temperature range of the heating start condition, the battery is heated by using the determined heating strategy to improve the temperature of the battery, which will not affect the use of the battery.

[0074] In some embodiments, as Figure 3 As shown, after the battery is heated by using the determined heating strategy when the cell temperature meets the heating start condition, the method further includes:

[0075] S301, determine the heating stop condition corresponding to the current operation mode.

[0076] Specifically, as shown in Table 2, the heating start condition corresponding to the battery replacement mode is T_min≥20℃ or T_max≥0℃; the heating start condition corresponding to the driving mode is T_min≥15℃ or T_max≥30℃; the heating start condition corresponding to the charging mode is T_min≥20℃ or T_max≥30℃; the heating start condition corresponding to the timing heating mode is SOC≤25% or T_min≥20℃ or T_max≥30℃; and the heating start condition corresponding to the pre-booking heating mode is T_min≥20℃ or T_max≥30℃.

[0077] It should be noted that in the timed heating mode, the SOC of the battery also needs to be obtained, and if the SOC of the battery is too low, the battery stops self-heating to prevent the battery from being too low in power due to repeated timed heating, so that the vehicle cannot be normally started.

[0078] S302, when the battery core temperature meets the heating stop condition, stop heating the battery.

[0079] It can be understood that when the battery core temperature meets the heating stop condition, the temperature of the battery is in a suitable temperature range, and therefore, heating of the battery needs to be stopped. If the battery continues to be heated, the temperature of the battery will be too high, which will cause a dangerous situation, reducing the safety performance of the vehicle, and if the battery continues to self-heat, the power of the battery will continue to decrease, resulting in the power of the battery being too low, so that the vehicle cannot be normally used.

[0080] In the above embodiment, different heating strategies are formulated according to the current operating mode and the current location, so that in different scenarios, the battery can be heated by the charger, the charging pile or the internal circuit of the battery, meeting the battery thermal management in all scenarios, so that the battery can be immediately used in all scenarios, improving the operation efficiency. Furthermore, since the vehicle is internally provided with a low-voltage power supply, when the vehicle is powered off, the low-voltage power supply supplies power to the battery management system, and the battery management system can be awakened and self-heated by the internal circuit of the battery, thereby realizing the battery thermal management after the vehicle is powered off.

[0081] In summary, according to the battery full-time thermal management method of the embodiment of the present application, the battery core temperature is obtained, and the current operating mode of the battery and the current location of the battery are determined, and according to the current operating mode and the current location, the heating strategy of the battery is determined, that is, according to the current application scenario, the battery is heated by the charger or the internal circuit of the battery, so that according to the current operating mode and the battery core temperature, the battery is heated by the determined heating strategy, so that the temperature of the battery is increased, realizing the battery thermal management in all scenarios, so that the battery can be immediately used in all scenarios, thereby improving the operation efficiency. Furthermore, the vehicle is internally provided with a low-voltage power supply, when the vehicle is powered off, the low-voltage power supply supplies power to the battery management system, and the battery management system can be awakened and self-heated by the internal circuit of the battery, thereby realizing the battery thermal management after the vehicle is powered off.

[0082] Corresponding to the above embodiment, an embodiment of the present application also provides a computer readable storage medium, which stores a battery full-time thermal management program, and the battery full-time thermal management program is executed by a processor to realize the battery full-time thermal management method of any one of the above embodiments.

[0083] According to the computer readable storage medium of the embodiment of the present application, by executing the all-time thermal management program of the battery, the heating strategy of the battery is determined according to the current operation mode and the current location, and the battery is heated by using the charger or the internal circuit of the battery in different scenarios, so that the battery thermal management in all scenarios is met, and therefore, the battery can be immediately used in all scenarios, and the operation efficiency is improved.

[0084] Corresponding to the above embodiment, the embodiment of the present application also provides a battery controller. As shown in Figure 4 the battery controller 100 includes a memory 110, a processor 120, and an all-time thermal management program of the battery stored on the memory 110 and executable on the processor 120. When the processor 120 executes the all-time thermal management program of the battery, the all-time thermal management method of the battery of any of the above embodiments is implemented.

[0085] According to the battery controller of the embodiment of the present application, by executing the all-time thermal management program of the battery by the processor, the heating strategy of the battery is determined according to the current operation mode and the current location, and the battery is heated by using the charger or the internal circuit of the battery in different scenarios, so that the battery thermal management in all scenarios is met, and therefore, the battery can be immediately used in all scenarios, and the operation efficiency is improved.

[0086] Corresponding to the above embodiment, the embodiment of the present application also provides an all-time thermal management device of a battery. As shown in Figure 5 the all-time thermal management device of the battery includes an acquisition module 10, a first determination module 20, a second determination module 30, and a heating module 40.

[0087] The acquisition module 10 is configured to acquire the cell temperature of the battery; the first determination module 20 is configured to determine the current operation mode of the battery and the current location of the battery; the second determination module 30 is configured to determine the heating strategy of the battery based on the current operation mode and the current location, wherein the heating strategy includes: using the charger of the battery swap station to heat the battery, and using the internal circuit of the battery to heat the battery; and the heating module 40 is configured to heat the battery according to the current operation mode and the cell temperature by using the determined heating strategy.

[0088] In some embodiments, when the current location of the battery is the battery swap station, and the current operation mode is the battery swap mode, the heating strategy is to use the charger of the battery swap station to heat the battery.

[0089] In some embodiments, when the current location of the battery is the vehicle, and the current operation mode is the driving mode, the heating strategy is to use the internal circuit of the battery to heat the battery.

[0090] In some embodiments, when the current location of the battery is the vehicle and the current operation mode is the charging mode, the heating strategy is to use the charging pile to heat the battery.

[0091] In some embodiments, when the current location of the battery is the vehicle and the current operation mode is the timing heating mode, the heating strategy is to wake up according to the timing wake-up instruction and use the internal circuit of the battery to heat the battery.

[0092] In some embodiments, the vehicle is provided with a low-voltage power supply to provide power for the battery management system of the battery when the vehicle is powered off.

[0093] In some embodiments, when the current location of the battery is the vehicle and the current operation mode is the timing heating mode, the heating strategy is to wake up according to the timing wake-up instruction and use the internal circuit of the battery to heat the battery.

[0094] In some embodiments, the heating module 40 is further configured to determine a heating start condition corresponding to the current operation mode, and heat the battery using the determined heating strategy when the cell temperature meets the heating start condition.

[0095] In some embodiments, the heating module 40 is further configured to determine a heating stop condition corresponding to the current operation mode after heating the battery using the determined heating strategy when the cell temperature meets the heating start condition, and stop heating the battery when the cell temperature meets the heating stop condition.

[0096] It should be noted that the specific implementation of the battery full-time thermal management device of the embodiments of the present application corresponds to the specific implementation of the battery full-time thermal management method of the embodiments of the present application described above, and will not be repeated here.

[0097] According to the battery full-time thermal management device of the embodiments of the present application, the second determination module determines the heating strategy of the battery according to the current operation mode and the current location, that is, according to the current application scenario, using the charging pile to heat or using the internal circuit of the battery to heat, and therefore, the heating module uses the determined heating strategy to heat the battery according to the current operation mode and the cell temperature, so that the temperature of the battery is improved, and the battery thermal management in all scenarios is realized. In this way, the battery can be used immediately in all scenarios, thereby improving the operation efficiency.

[0098] It is to be appreciated that the above description and the examples that follow are intended to be illustrative only and that changes can be made to the description and examples without departing from the scope of the application. Note also that the use of particular brand names in the description is solely for illustration and should not be construed as an endorsement of such brands.

[0099] It should be understood that aspects of the application can be implemented in hardware, software, firmware or a combination thereof. In the above embodiments, various steps or methods can be implemented in software or firmware that is stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any of the following techniques, which are well known in the art of hardware implementation, can be used: a hybrid of the above techniques, a mixture of two or more of the above techniques, or a combination of the above techniques with other techniques not listed above.

[0100] In the description of the present application, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. The illustrative appearances of the above terms in various places in the specification are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0101] In addition, the terms "first", "second" and the like in the embodiments of the present application are used only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated in the embodiments. Therefore, the features defined with the terms "first", "second" and the like in the embodiments of the present application can be explicitly or implicitly indicated to include at least one of the features in the embodiments. In the description of the present application, the meaning of the word "plurality" is at least two or two or more, for example, two, three, four, etc., unless otherwise specifically limited in the embodiments.

[0102] In the present application, unless otherwise specifically related or limited in the embodiments, the terms "mounting", "connecting", "connecting" and "fixing" and the like appearing in the embodiments should be understood broadly, for example, the connection can be fixed connection, or detachable connection, or integral, which can be understood, or mechanical connection, electrical connection, etc. Of course, it can also be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements, or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific implementation situation.

[0103] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A method for all-time thermal management of a battery, characterized in that, include: The cell temperature of the battery is obtained, and the current operating mode and current location of the battery are determined. Based on the current operating mode and the current location, a heating strategy for the battery is determined, wherein the heating strategy includes: using the charger of the battery swapping station to heat the battery and using the battery's internal circuitry to heat the battery itself. Based on the current operating mode and the cell temperature, the battery is heated using a determined heating strategy; When the current location of the battery is a vehicle and the current operating mode is driving mode, the heating strategy is to use the internal circuitry of the battery to self-heat the battery. When the current location of the battery is a battery swapping station and the current operating mode is battery swapping mode, the heating strategy is to use the charger of the battery swapping station to heat and maintain the battery.

2. The method according to claim 1, characterized in that, When the battery is currently located in a vehicle and the current operating mode is charging mode, the heating strategy is to use a charging pile to heat and maintain the battery's temperature.

3. The method according to claim 1, characterized in that, When the current location of the battery is a vehicle and the current operating mode is timed heating mode, the heating strategy is to self-wake up according to the timed wake-up command and use the internal circuit of the battery to self-heat the battery.

4. The method according to claim 3, characterized in that, The vehicle is equipped with a low-voltage power supply to provide power to the battery management system of the battery when the vehicle is powered off.

5. The method according to claim 1, characterized in that, When the current location of the battery is a vehicle and the current operating mode is the scheduled heating mode, the heating strategy is to respond to the vehicle's wake-up command by using the battery's internal circuitry to self-heat the battery, wherein the wake-up command is generated based on the user's scheduled heating command.

6. The method according to any one of claims 1-5, characterized in that, Based on the current operating mode and the cell temperature, the battery is heated using a determined heating strategy, including: Determine the heating start conditions corresponding to the current operating mode; When the cell temperature meets the heating activation conditions, the battery is heated using a determined heating strategy.

7. The method according to claim 6, characterized in that, After heating the battery using a determined heating strategy when the cell temperature meets the heating activation condition, the method further includes: Determine the heating stop condition corresponding to the current operating mode; When the cell temperature meets the heating stop condition, heating of the battery is stopped.

8. A computer-readable storage medium, characterized in that, It stores a battery's all-time thermal management program, which, when executed by a processor, implements the battery's all-time thermal management method according to any one of claims 1-7.

9. A battery controller, characterized in that, The battery includes a memory, a processor, and a battery all-time thermal management program stored in the memory and executable on the processor. When the processor executes the battery all-time thermal management program, it implements the battery all-time thermal management method according to any one of claims 1-7.

10. A battery's all-time thermal management device, characterized in that, The battery's all-time thermal management device implements the all-time thermal management method for the battery according to any one of claims 1-7, comprising: An acquisition module is used to acquire the cell temperature of the battery; The first determining module is used to determine the current operating mode of the battery and the current location of the battery. The second determining module is used to determine the heating strategy of the battery based on the current operating mode and the current location, wherein the heating strategy includes: using the charger of the battery swapping station to keep the battery warm and heating it, and using the internal circuit of the battery to self-heat the battery. A heating module is used to heat the battery using a determined heating strategy based on the current operating mode and the cell temperature.

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