Charging heating control method and device, battery, vehicle and storage product
By determining the actual maximum output power and charging power of the charging pile and battery, and formulating a heating control strategy, the problem of slow charging speed of new energy vehicles in low-temperature environments was solved, and the global optimal charging speed was achieved.
Patent Information
- Application Number
- CN202410509705.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-10-28
AI Technical Summary
In low-temperature environments, the battery temperature of new energy vehicles is too low, resulting in slow charging speed. Existing heating strategies cannot achieve optimal charging speed in all charging scenarios.
The actual maximum output power of the charging pile is determined based on its actual output power and the maximum allowable output power. Combined with the battery's maximum allowable charging power and state of charge, a heating control strategy is formulated to heat the battery using a heat exchange system.
It achieves global optimization of charging speed in various charging scenarios, thereby improving the charging speed of the battery.
Smart Images
Figure CN120840464A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of battery charging technology, and in particular to a charging heating control method, device, battery, vehicle, and storage product. Background Technology
[0002] The anxiety surrounding the poor winter driving experience of new energy vehicles has been a persistent concern for users. Low battery temperatures lead to slow charging and reduce charging performance in cold environments. One related technology involves heating the battery to increase its temperature and thus improve charging speed. Summary of the Invention
[0003] To overcome the problems existing in related technologies, this disclosure provides a charging heating control method, device, battery, vehicle, and storage product, so as to obtain a more accurate heating control strategy for the battery based on the charging capacity of the charging pile, thereby improving the charging speed of the battery.
[0004] According to a first aspect of the present disclosure, a charging heating control method is provided, comprising: The actual maximum output power of the charging pile is determined based on its actual output power and its maximum allowable output power. Based on the actual maximum output power and the battery's maximum allowable charging power, a heating control strategy for the battery is determined, wherein the maximum allowable charging power is determined based on the battery's temperature and state of charge. The heating actuator is controlled according to the heating control strategy.
[0005] Optionally, determining the actual maximum output power of the charging pile based on its actual output power and the maximum allowable output power includes: When the actual output power of the charging pile is less than the requested power of the battery and remains stable, the real-time output power of the charging pile is obtained. The minimum value between the real-time output power and the maximum allowable output power of the charging pile is determined as the actual maximum output power of the charging pile.
[0006] Optionally, determining the actual maximum output power of the charging pile based on its actual output power and the maximum allowable output power includes: If the actual output power of the charging pile is less than the requested power of the battery and continues to change, the maximum allowable output power of the charging pile shall be determined as the actual maximum output power of the charging pile.
[0007] Optionally, determining the actual maximum output power of the charging pile based on its actual output power and the maximum allowable output power includes: If the actual output power of the charging pile is greater than or equal to the requested power of the battery, the maximum allowable output power of the charging pile shall be determined as the actual maximum output power of the charging pile.
[0008] Optionally, determining the heating control strategy for the battery based on the actual maximum output power and the battery's maximum allowable charging power includes: The heating request power is obtained based on the actual maximum output power and the maximum allowable charging power; When the requested heating power is greater than 0, the target heating parameter is determined based on the requested heating power, and the heating control strategy is determined to be: turn on heating, and use the target heating parameter as the control target; The step of controlling the heating actuator according to the heating control strategy includes: The heating actuator is controlled to be in the open state, and the target heating parameter is used as the control target to heat the battery.
[0009] Optionally, the heating actuator is a heat exchange system, and the target heating parameters include the target coolant temperature and the target coolant flow rate; Determining the target heating parameters based on the requested heating power includes: The target coolant temperature and the target coolant flow rate are determined based on the requested heating power, the actual coolant temperature, and the actual coolant flow rate.
[0010] Optionally, the method further includes: If the requested heating power is less than or equal to 0, the heating control strategy is determined to be: turn off heating; The step of controlling the heating actuator according to the heating control strategy includes: The heating actuator is controlled to be in the off state.
[0011] According to a second aspect of the present disclosure, a charging heating control device is provided, comprising: The first determining module is configured to determine the actual maximum output power of the charging pile based on the actual output power of the charging pile and the maximum allowable output power of the charging pile. The second determining module is configured to determine a heating control strategy for the battery based on the actual maximum output power and the battery's maximum allowable charging power, wherein the maximum allowable charging power is determined based on the battery's temperature and state of charge. The control module is configured to control the heating actuator according to the heating control strategy.
[0012] According to a third aspect of the present disclosure, a battery is provided, including a battery management system configured to perform the steps of the charging heating control method provided in the first aspect of the present disclosure when executing.
[0013] According to a fourth aspect of the present disclosure, a vehicle is provided, comprising: processor; a memory for storing processor-executable instructions; The processor is configured to execute the steps of the charging heating control method provided in the first aspect of this disclosure.
[0014] According to a fifth aspect of the present disclosure, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps of the charging heating control method provided in the first aspect of the present disclosure.
[0015] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: By determining the actual maximum output power of the charging pile based on its actual output power and its maximum permissible output power, a heating control strategy for the battery is then determined based on this actual maximum output power and the battery's maximum permissible charging power. The maximum permissible charging power is determined based on the battery's temperature and state of charge, and the heating actuator is controlled according to the heating control strategy. Using both the actual and maximum permissible output power of the charging pile provides a more accurate estimate of its actual maximum output power, rather than simply defining the maximum permissible output power as the maximum output power. Combining this with the battery's maximum permissible charging power allows for a more precise decision on whether to heat or de-heat the battery, thereby improving the charging speed.
[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description
[0017] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.
[0018] Figure 1 This is a schematic diagram illustrating an application scenario of a charging heating control method according to an exemplary embodiment.
[0019] Figure 2This is a flowchart illustrating a charging heating control method according to an exemplary embodiment.
[0020] Figure 3 This is a flowchart illustrating a method for determining the actual maximum output power according to an exemplary embodiment.
[0021] Figure 4 This is a block diagram illustrating a charging heating control device according to an exemplary embodiment.
[0022] Figure 5 This is a block diagram illustrating a vehicle according to an exemplary embodiment. Detailed Implementation
[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.
[0024] The embodiments described in the following examples of this disclosure are not representative of all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.
[0025] It should be noted that all actions involving the acquisition of signals, information, or data in this disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the location is situated, and with authorization from the owner of the relevant device.
[0026] The anxiety surrounding the poor winter user experience of new energy vehicles has long plagued users. Low battery temperatures lead to slow charging and reduced charging performance in low-temperature environments. One related technology involves heating the battery to increase its temperature and thus improve charging speed. Specifically, the mainstream battery heating method currently uses a heat exchange system. This system first heats the battery coolant, and the high-temperature coolant then transfers heat to the battery through a water-cooled plate and thermally conductive materials, raising the battery temperature. For most heating strategies, when the Battery Management System (BMS) determines that the battery temperature is below a certain threshold, it sends a heating request, typically including parameters such as coolant temperature and flow rate requests. When the BMS determines that the battery temperature is above the threshold, it stops sending heating requests. This battery heating method relies on offline calibration; once the battery temperature is detected below a fixed threshold, fixed heating request parameters such as heating level, coolant temperature, and coolant flow rate are sent, which cannot guarantee optimal charging speed in all charging scenarios.
[0027] To address the aforementioned technical problems, this disclosure provides a charging heating control method, apparatus, battery, vehicle, and storage product. By determining the actual maximum output power of the charging pile based on both the actual output power and the maximum allowable output power, a more accurate estimate of the charging pile's actual maximum output power can be obtained, rather than directly defining the maximum allowable output power as the maximum output power. This is then combined with the charging pile's actual maximum output power and the battery's maximum allowable charging power to determine the battery's heating control strategy. This allows for more accurate adjustments to whether or not the battery is heated, ensuring optimal charging speed in all charging scenarios and ultimately improving the battery's charging rate.
[0028] Figure 1 This is a schematic diagram illustrating an application scenario of a charging heating control method according to an exemplary embodiment, such as... Figure 1 As shown, the charging pile 101 controls the charging gun 103 to output electrical energy to the vehicle 104 via the charging controller 102 to charge the vehicle 104, or outputs it to the heat exchange system 106 to heat the battery, etc. The battery may include a battery management system 105 to control the charging of the battery.
[0029] Figure 2 This is a flowchart illustrating a charging heating control method according to an exemplary embodiment, such as... Figure 2 As shown, this method can be used in vehicles and may include the following steps.
[0030] In step S201, the actual maximum output power of the charging pile is determined based on the actual output power of the charging pile and the maximum allowable output power of the charging pile.
[0031] In this embodiment, the actual output power of the charging pile is the power that the charging pile outputs to the vehicle in real time, which can be calculated based on the output current and output voltage of the charging pile. The requested power of the battery is the power demanded by the battery to the charging pile in real time. The maximum allowable output power of the charging pile is the rated maximum output power of the charging pile, which can be determined based on the maximum allowable output current and maximum allowable output voltage of the charging pile; that is, the maximum allowable output power of the charging pile can be the product of the maximum allowable output current and maximum allowable output voltage of the charging pile. The actual maximum output power of the charging pile can be determined based on the actual output power of the charging pile, as well as the magnitude and stability of the maximum allowable output power of the charging pile. Therefore, the true maximum output power of the charging pile can be accurately estimated in real time, without relying on the maximum allowable output current and maximum allowable output voltage sent by the charging pile, resulting in a more accurate actual maximum output power of the charging pile.
[0032] In step S202, a heating control strategy for the battery is determined based on the actual maximum output power and the battery's maximum allowable charging power, which is determined according to the battery's temperature and state of charge.
[0033] In one possible implementation, the battery's temperature and state of charge (SOC) can be acquired in real time, and the maximum allowable charging power corresponding to the battery can be obtained based on the battery's temperature and SOC. Specifically, the battery corresponds to different maximum allowable charging powers under different temperature and SOC conditions. The maximum allowable charging power for the current temperature and SOC condition can be determined based on a pre-established correspondence between temperature and SOC and the battery's maximum allowable charging power. This correspondence between temperature and SOC and the battery's maximum allowable charging power can be obtained through experiments or modeling simulations.
[0034] Then, based on the actual maximum output power and the battery's maximum allowable charging power, a heating control strategy for the battery is determined. This heating control strategy can either turn heating on or off. When heating is on, the heating control strategy can further include target heating parameters. This allows for a more reasonable heating control strategy based on actual conditions, achieving global optimization of the on / off decision for charging heating, and thus global optimization of the charging speed, thereby improving charging speed.
[0035] In step S203, the heating actuator is controlled according to the heating control strategy.
[0036] In this embodiment, after obtaining the heating control strategy, the heating actuator can be controlled based on this strategy. The heating actuator can be a heat exchange system, such as a heat exchanger. The battery temperature can be increased by first heating the coolant and then transferring heat to the battery through a water-cooled plate and thermally conductive material via the high-temperature coolant. The heating control strategy aims to achieve global optimization of the charging speed, thereby improving the charging rate.
[0037] By combining the actual output power of the charging pile, the requested power of the battery, and the charging pile's maximum permissible output power, a more accurate estimate of the charging pile's actual maximum output power can be obtained, rather than simply defining the charging pile's maximum permissible output power as its maximum output power. This, along with the charging pile's actual maximum output power and the battery's maximum permissible charging power, allows for the determination of a battery heating control strategy. This enables more precise adjustments to whether or not the battery is heated, thereby improving the charging speed.
[0038] Figure 3 This is a flowchart illustrating a method for determining the actual maximum output power according to an exemplary embodiment, such as... Figure 3 As shown, in one possible implementation, the method for determining the actual maximum output power of the charging pile based on its actual output power and its maximum permissible output power may include: In step S301, when the actual output power of the charging pile is less than the requested power of the battery and remains stable, the real-time output power of the charging pile is obtained.
[0039] In step S302, the minimum value between the real-time output power and the maximum allowable output power of the charging pile is determined as the actual maximum output power of the charging pile.
[0040] In this embodiment, after the vehicle sends a power request from the battery to the charging station, the charging station can output power to the vehicle based on its current output power, with the requested power as the output target. During this process, if the actual output power of the charging station is less than the requested power of the battery and remains stable, it indicates that the charging station has reached its output power limit and cannot further increase its output power to reach the requested power. At this time, the real-time output power of the charging station when it is stable can be obtained, and then compared with the maximum allowable output power of the charging station. The minimum value between the real-time output power and the maximum allowable output power of the charging station is determined as the actual maximum output power of the charging station.
[0041] In one possible implementation, determining the actual maximum output power of the charging pile based on its actual output power and its maximum permissible output power includes: When the actual output power of the charging pile is less than the requested power of the battery and continues to change, the maximum allowable output power of the charging pile is determined as the actual maximum output power of the charging pile.
[0042] In this embodiment, when the actual output power of the charging pile is less than the requested power of the battery and continues to change, and the requested power of the battery is greater than the actual output power of the charging pile, the charging pile can continuously increase its output power to meet the battery's requested power. If the actual output power of the charging pile continues to change, the output power of the charging pile is still increasing, and the charging pile has not yet reached its power output limit. In this case, the maximum output power of the charging pile cannot be determined based on its actual output power; instead, the maximum allowable output power of the charging pile can be determined as its actual maximum output power.
[0043] In one possible implementation, the method for determining the actual maximum output power of the charging pile based on its actual output power and its maximum allowable output power can be as follows: If the actual output power of the charging pile is greater than or equal to the requested power of the battery, the maximum allowable output power of the charging pile shall be determined as the actual maximum output power of the charging pile.
[0044] In this embodiment, if the actual output power of the charging pile is greater than or equal to the requested power of the battery, it indicates that the charging pile can meet the battery's requested power. However, it cannot be determined that the current output power of the charging pile is its output limit, and the maximum output power of the charging pile cannot be determined based on its actual output power. The maximum allowable output power of the charging pile can be determined as its actual maximum output power.
[0045] In one possible implementation, the method for determining the heating control strategy for the battery based on the actual maximum output power and the battery's maximum allowable charging power can be as follows: The heating request power is obtained based on the actual maximum output power and the maximum allowable charging power. If the heating request power is greater than 0, the target heating parameter is determined based on the heating request power, and the heating control strategy is determined to be: start heating and use the target heating parameter as the control target.
[0046] In this embodiment, the heating request power can be determined based on the actual maximum output power and the maximum allowable charging power. This heating request power can be the remaining power of the charging pile when it meets the maximum allowable charging power; that is, the difference between the actual maximum output power and the maximum allowable charging power can be determined as the heating request power. The battery's requested power can be determined based on the battery's maximum allowable charging power, and the battery's requested power can be positively correlated with the battery's maximum allowable charging power. In one possible embodiment, the battery's requested power can be equal to the battery's maximum allowable charging power.
[0047] If the requested heating power is greater than 0, it indicates that the charging station has surplus power, allowing battery heating to be activated to increase the battery's maximum allowable charging power. Based on the requested heating power, the target heating parameters are determined. Therefore, the heating control strategy is: activate heating, using the target heating parameters as the control objective. Based on this strategy, the heating actuator is activated, and the battery is heated using the target heating parameters.
[0048] In one possible implementation, the heating actuator is a heat exchange system, and the target heating parameters include the target coolant temperature and the target coolant flow rate. The method for determining the target heating parameters based on the requested heating power is as follows: determine the target coolant temperature and target coolant flow rate based on the requested heating power, the actual coolant temperature, and the actual coolant flow rate.
[0049] In this embodiment, when the heating actuator is a heat exchange system, the target heating parameters may include the target coolant temperature and the target coolant flow rate. The target coolant temperature is the desired temperature to which the coolant is heated, and the target coolant flow rate is the desired flow rate of the coolant. The battery can be heated to the target temperature based on the target coolant temperature and the target coolant flow rate.
[0050] The target coolant temperature can be determined based on the mapping relationship between the heating request power and the actual coolant temperature and the target coolant temperature; and the target coolant flow rate can be determined based on the heating request power and the actual coolant flow rate.
[0051] The formula for calculating the target coolant temperature is as follows:
[0052] in, The target coolant temperature, Request power for heating This refers to the actual coolant temperature. The mapping relationship between the requested heating power and the actual coolant temperature and the target coolant temperature.
[0053] The formula for calculating the target coolant flow rate can be:
[0054] in, For the target coolant flow rate, Request power for heating This represents the actual coolant flow rate. This relates to the mapping between the requested heating power and the actual coolant flow rate and the target coolant flow rate.
[0055] In one possible implementation, after obtaining the heating request power based on the actual maximum output power and the maximum allowable charging power, the method further includes: if the heating request power is less than or equal to 0, determining the heating control strategy as: turning off heating.
[0056] In this embodiment, if the requested heating power is less than or equal to 0, it indicates that the charging pile currently has no spare power. Enabling battery heating will not increase the battery's maximum allowable charging power and will result in a loss of charging power for the battery pack due to some power being used for heating. In this case, battery heating can be disabled, keeping it in an off state so that all the charging pile's power is used for charging the battery pack, thereby increasing the battery charging speed. Therefore, the heating actuator is controlled to be in an off state based on the heating control strategy.
[0057] Figure 4 This is a block diagram illustrating a charging heating control device according to an exemplary embodiment. (Refer to...) Figure 4 The charging heating control device 400 includes a first determining module 401, a second determining module 402, and a control module 403.
[0058] The first determining module 401 is configured to determine the actual maximum output power of the charging pile based on the actual output power of the charging pile and the maximum allowable output power of the charging pile. The second determining module 402 is configured to determine a heating control strategy for the battery based on the actual maximum output power and the battery's maximum allowable charging power, wherein the maximum allowable charging power is determined based on the battery's temperature and state of charge. The control module 403 is configured to control the heating actuator according to the heating control strategy.
[0059] Optionally, the first determining module 401 includes: The acquisition submodule is configured to acquire the real-time output power of the charging pile when the actual output power of the charging pile is less than the requested power of the battery and remains stable. The first determining submodule is configured to determine the actual maximum output power of the charging pile as the minimum value between the real-time output power and the maximum allowable output power of the charging pile.
[0060] Optionally, the first determining module 401 includes: The second determining submodule is configured to determine the maximum allowable output power of the charging pile as the actual maximum output power of the charging pile when the actual output power of the charging pile is less than the requested power of the battery and continues to change.
[0061] Optionally, the first determining module 401 includes: The third determining submodule is configured to determine the maximum allowable output power of the charging pile as the actual maximum output power of the charging pile when the actual output power of the charging pile is greater than or equal to the requested power of the battery.
[0062] Optionally, the second determining module 402 includes: The obtaining submodule is configured to obtain the heating request power based on the actual maximum output power and the maximum allowable charging power; The fourth determining submodule is configured to, when the heating request power is greater than 0, determine the target heating parameter based on the heating request power, and determine the heating control strategy as: start heating, and use the target heating parameter as the control target; The control module 403 includes: The first control submodule is configured to control the heating actuator to be in the open state and to heat the battery with the target heating parameter as the control target.
[0063] Optionally, the heating actuator is a heat exchange system, and the target heating parameters include the target coolant temperature and the target coolant flow rate; The second determining module 402 includes: The fifth determining submodule is configured to determine the target coolant temperature and the target coolant flow rate based on the heating request power, the actual coolant temperature, and the actual coolant flow rate.
[0064] Optionally, the charging heating control device 400 further includes: The third determining module is configured to determine the heating control strategy as: turning off heating when the heating request power is less than or equal to 0. The control module 403 includes: The second control submodule is configured to control the heating actuator to be in a closed state.
[0065] Regarding the charging heating control device 400 in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated here.
[0066] This disclosure also provides a computer-readable storage medium having stored thereon computer program instructions that, when executed by a processor, implement the steps of the charging heating control method provided in this disclosure.
[0067] Figure 5This is a block diagram illustrating a vehicle according to an exemplary embodiment. For example, vehicle 500 can be a hybrid vehicle, a non-hybrid vehicle, an electric vehicle, a fuel cell vehicle, or other types of vehicle. Vehicle 500 can be an autonomous vehicle, a semi-autonomous vehicle, or a non-autonomous vehicle.
[0068] Reference Figure 5 The vehicle 500 may include various subsystems, such as an infotainment system 510, a perception system 520, a decision control system 530, a drive system 540, and a computing platform 550. The vehicle 500 may also include more or fewer subsystems, and each subsystem may include multiple components. Furthermore, each subsystem and component of the vehicle 500 can be interconnected via wired or wireless means.
[0069] In some embodiments, the infotainment system 510 may include a communication system, an entertainment system, and a navigation system, etc.
[0070] The perception system 520 may include several sensors for sensing information about the environment surrounding the vehicle 500. For example, the perception system 520 may include a global positioning system (which may be GPS, BeiDou, or other positioning systems), an inertial measurement unit (IMU), lidar, millimeter-wave radar, ultrasonic radar, and a camera device.
[0071] The decision control system 530 may include a computing system, a vehicle controller, a steering system, a throttle, and a braking system.
[0072] The drive system 540 may include components that provide powered motion to the vehicle 500. In one embodiment, the drive system 540 may include an engine, an energy source, a transmission system, and wheels. The engine may be one or a combination of internal combustion engines, electric motors, and compressed air engines. The engine is capable of converting energy provided by the energy source into mechanical energy.
[0073] Some or all of the functions of vehicle 500 are controlled by computing platform 550. Computing platform 550 may include at least one processor 551 and memory 552, and processor 551 may execute instructions 553 stored in memory 552.
[0074] The processor 551 can be any conventional processor, such as a commercially available CPU. The processor may also include graphics processing units (GPUs), field-programmable gate arrays (FPGAs), systems on chips (SoCs), application-specific integrated circuits (ASICs), or combinations thereof.
[0075] The memory 552 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.
[0076] In addition to instruction 553, memory 552 can also store data, such as road maps, route information, vehicle position, direction, speed, and other data. The data stored in memory 552 can be used by computing platform 550.
[0077] In this embodiment of the disclosure, the processor 551 may execute instructions 553 to complete all or part of the steps of the above-described charging heating control method.
[0078] In another exemplary embodiment, a battery is also provided, the battery including a battery management system configured to implement the charging heating control method described above when executed.
[0079] Those skilled in the art will also understand that the various illustrative logical blocks and steps listed in the embodiments of this application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented through hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the described functionality using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this application.
[0080] In the above detailed description, terms such as "center," "upper," "lower," "left," and "right" indicate direction or positional relationship. Since components of the described device can be positioned in multiple different orientations, these directional terms are for illustrative purposes and not restrictive. It should be understood that other aspects can be utilized and structural or logical changes can be made without departing from the concept of this disclosure. Therefore, the following detailed description should not be considered limiting.
[0081] It should be understood that, unless otherwise specifically indicated, features of various embodiments of this disclosure described herein can be combined with each other.
[0082] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited to these terms. Rather, these terms are used only to distinguish one component, part, region, layer, or section from another. Therefore, without departing from the teachings of the examples described herein, the first component, part, region, layer, or section mentioned in the examples may also be referred to as the second component, part, region, layer, or section. Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first” or “second” may explicitly or implicitly include at least one of that feature. In the description herein, “a plurality” means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0083] Furthermore, the term “exemplary” is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as “exemplary” is not necessarily to be construed as advantageous compared to other aspects or designs. Rather, the use of the term “exemplary” is intended to present the concept in a concrete manner. As used herein, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.” That is, unless otherwise specified or clear from the context, “X applies A or B” is intended to mean any of the natural inclusive arrangements. That is, “X applies A or B” satisfies any of the foregoing instances if X applies A; X applies B; or both X applies A and B. Additionally, unless otherwise specified or clear from the context to refer to the singular form, the articles “a” and “an” as used in this application and the appended claims are generally understood to mean “one or more.”
[0084] Similarly, although this disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding this specification and the accompanying drawings. This disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components described above (e.g., elements, resources, etc.), unless otherwise indicated, the terminology used to describe such components is intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if structurally not equivalent to the disclosed structure. Furthermore, although specific features of this disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations, as may be desired and advantageous to any given or particular application. Moreover, with regard to the terms “comprising,” “owning,” “having,” “having,” or variations thereof as used in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term “including.”
[0085] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.
[0086] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.
Claims
1. A charging heating control method, characterized in that, include: The actual maximum output power of the charging pile is determined based on its actual output power and its maximum allowable output power. Based on the actual maximum output power and the battery's maximum allowable charging power, a heating control strategy for the battery is determined, wherein the maximum allowable charging power is determined based on the battery's temperature and state of charge. The heating actuator is controlled according to the heating control strategy.
2. The charging heating control method according to claim 1, characterized in that, Determining the actual maximum output power of the charging pile based on its actual output power and its maximum allowable output power includes: When the actual output power of the charging pile is less than the requested power of the battery and remains stable, the real-time output power of the charging pile is obtained. The minimum value between the real-time output power and the maximum allowable output power of the charging pile is determined as the actual maximum output power of the charging pile.
3. The charging heating control method according to claim 1, characterized in that, Determining the actual maximum output power of the charging pile based on its actual output power and its maximum allowable output power includes: If the actual output power of the charging pile is less than the requested power of the battery and continues to change, the maximum allowable output power of the charging pile shall be determined as the actual maximum output power of the charging pile.
4. The charging heating control method according to claim 1, characterized in that, Determining the actual maximum output power of the charging pile based on its actual output power and its maximum allowable output power includes: If the actual output power of the charging pile is greater than or equal to the requested power of the battery, the maximum allowable output power of the charging pile shall be determined as the actual maximum output power of the charging pile.
5. The charging heating control method according to any one of claims 1 to 4, characterized in that, The step of determining a heating control strategy for the battery based on the actual maximum output power and the battery's maximum allowable charging power includes: The heating request power is obtained based on the actual maximum output power and the maximum allowable charging power; When the requested heating power is greater than 0, the target heating parameter is determined based on the requested heating power, and the heating control strategy is determined to be: turn on heating, and use the target heating parameter as the control target; The step of controlling the heating actuator according to the heating control strategy includes: The heating actuator is controlled to be in the open state, and the target heating parameter is used as the control target to heat the battery.
6. The charging heating control method according to claim 5, characterized in that, The heating actuator is a heat exchange system, and the target heating parameters include the target coolant temperature and the target coolant flow rate; Determining the target heating parameters based on the requested heating power includes: The target coolant temperature and the target coolant flow rate are determined based on the requested heating power, the actual coolant temperature, and the actual coolant flow rate.
7. The charging heating control method according to claim 5, characterized in that, The method further includes: If the requested heating power is less than or equal to 0, the heating control strategy is determined to be: turn off heating; The step of controlling the heating actuator according to the heating control strategy includes: The heating actuator is controlled to be in the off state.
8. A charging heating control device, characterized in that, include: The first determining module is configured to determine the actual maximum output power of the charging pile based on the actual output power of the charging pile and the maximum allowable output power of the charging pile. The second determining module is configured to determine a heating control strategy for the battery based on the actual maximum output power and the battery's maximum allowable charging power, wherein the maximum allowable charging power is determined based on the battery's temperature and state of charge. The control module is configured to control the heating actuator according to the heating control strategy.
9. A battery, characterized in that, Includes a battery management system configured to perform the steps of the charging heating control method according to any one of claims 1 to 7 when executed.
10. A vehicle, characterized in that, include: processor; a memory for storing processor-executable instructions; The processor is configured to execute the steps of the charging heating control method according to any one of claims 1 to 7.
11. A computer program product, characterized in that, It includes a computer program that, when executed by a processor, implements the steps of the charging heating control method according to any one of claims 1 to 7.