A method, system, device, and medium for adjusting charging power of a battery in a vehicle

Abstract

The application discloses a battery charging power adjustment method, system, device and medium in a vehicle, and relates to the technical field of vehicles.The method comprises the following steps: acquiring the current charging power of a battery in a vehicle, and determining a current charging power threshold; in the case that the current charging power is greater than the current charging power threshold, the value of an associated parameter of the current charging power is adjusted to reduce the current charging power until the current charging power is not greater than the current charging power threshold, and the value of the associated parameter is associated with the value of the current charging power.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a method, system, device and medium for adjusting the charging power of a battery in a vehicle. Background Technology

[0002] Currently, the market share of hybrid vehicles is gradually increasing. During the multi-scenario operation of these vehicles, different driving modes, energy recovery intensities, and battery state of charge parameters cause dynamic changes in the maximum allowable charging power calculated by the battery management system. When the vehicle is in extreme environments such as low temperatures, high temperatures, or when the battery is near full charge, the battery's charging capacity is often severely limited, even to near zero. In such situations, if the engine continues to output power to generate electricity, coupled with the energy recovery power during vehicle coasting or braking, the total charging demand can easily exceed the battery's allowable limit.

[0003] However, when the vehicle's battery charging power exceeds a preset charging power threshold, the vehicle controller typically resorts to a drastic measure of cutting off the engine's fuel supply to avoid the risk of overcharging. This fuel cut-off causes the engine load to disappear instantly, resulting in a sudden spike in engine speed followed by a rapid drop, leading to severe speed fluctuations that significantly impact driving smoothness and ride comfort. Summary of the Invention

[0004] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] In a first aspect, embodiments of this application provide a method for adjusting the charging power of a battery in a vehicle, the method comprising: Obtain the current charging power of the battery in the vehicle and determine the current charging power threshold; If the current charging power is greater than the current charging power threshold, the value of the associated parameter of the current charging power is adjusted to reduce the current charging power until the current charging power is not greater than the current charging power threshold. The value of the associated parameter is related to the value of the current charging power.

[0006] In one embodiment of the present invention, the associated parameter includes energy recovery power or heating power of the heating module in the vehicle; When the associated parameter is the energy recovery power, adjusting the value of the associated parameter of the current charging power includes: reducing the energy recovery power; When the associated parameter is the heating power, adjusting the value of the associated parameter of the current charging power includes increasing the heating power.

[0007] In one embodiment of the present invention, when the associated parameter is the heating power, after adjusting the value of the associated parameter of the current charging power, the method further includes: If the adjusted energy recovery power reaches the preset recovery power threshold and the current charging power is greater than the current charging power threshold, the heating power of the heating module is increased to reduce the current charging power until the current charging power is not greater than the current charging power threshold.

[0008] In one embodiment of the present invention, after adjusting the values ​​of the associated parameters of the current charging power, the method further includes: When the heating module is unavailable and the current charging power is greater than the current charging power threshold, the engine is controlled to operate according to the final intake air volume, and the current charging power threshold is adjusted so that the current charging power is not greater than the current charging power threshold.

[0009] In one embodiment of the invention, before controlling the engine to operate according to the final intake air volume and adjusting the current charging power threshold, the method further includes: The engine's current speed, current intake air volume, and a pre-built speed-air volume table are obtained. The speed-air volume table records multiple engine speeds and the intake air volume corresponding to each speed. Obtain the target intake volume corresponding to the current speed from the speed and air volume table. If the current intake volume is less than the target intake volume, use the target intake volume as the final intake volume.

[0010] In one embodiment of the present invention, after obtaining the target intake air volume corresponding to the current rotational speed from the rotational speed and air volume table, the process includes: If the current intake volume is greater than or equal to the target intake volume, the current intake volume is taken as the final intake volume.

[0011] In one embodiment of the present invention, adjusting the current charging power threshold includes: Obtain the current engine speed and a pre-built speed-power table, which records multiple engine speeds and the charging power threshold corresponding to each speed. Obtain the target power threshold corresponding to the current speed from the speed-power table; The engine torque is determined based on the final intake air volume; The actual charging power of the battery is determined based on the torque and the current rotational speed. If the actual charging power is greater than the target power threshold, the actual charging power is used as the current charging power threshold.

[0012] Secondly, this application proposes a charging power adjustment system for a battery in a vehicle, the system comprising: a data acquisition module and a power adjustment module; The data acquisition module is configured to acquire the current charging power of the battery in the vehicle; The power adjustment module is configured to: when the current charging power is greater than a preset charging power threshold, adjust the value of the associated parameter of the current charging power to reduce the value of the current charging power until the current charging power is not greater than the preset charging power threshold, wherein the value of the associated parameter is associated with the value of the current charging power.

[0013] Thirdly, an electronic device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program stored in the memory to implement the steps of a method for adjusting the charging power of a battery in a vehicle as described in any of the first aspects above.

[0014] Fourthly, this application also proposes a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, it implements the steps of the charging power adjustment method for a battery in a vehicle according to any one of the first aspects.

[0015] In summary, the battery charging power adjustment method in this application obtains the current charging power of the battery in the vehicle. When it is determined that the current charging power is greater than the current charging power threshold, the controller does not directly cut off the engine fuel supply, but actively performs an adjustment operation on the associated parameters of the current charging power until the current charging power is not greater than the current charging power threshold. The value of the associated parameter is related to the value of the current charging power. Therefore, when adjusting the value of the associated parameter, it is necessary to adjust the value of the associated parameter with the purpose of reducing the value of the current charging power, so that the current charging power after the reduction is not greater than the preset charging power threshold. This avoids the violent speed fluctuation caused by the sudden change in engine load due to fuel cut-off, and increases the driving smoothness and ride comfort of the vehicle.

[0016] The method for adjusting the charging power of a battery in a vehicle proposed in this application, along with other advantages, objectives, and features of this application, will be partly apparent from the following description and partly understood by those skilled in the art through study and practice of this application. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit this specification. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic flowchart illustrating a method for adjusting the charging power of a battery in a vehicle, provided in an embodiment of this application; Figure 2 This application provides a schematic diagram of a battery charging power adjustment system in a vehicle. Figure 3 This is a schematic diagram of an electronic device for adjusting the charging power of a battery in a vehicle, provided as an embodiment of this application. Detailed Implementation

[0018] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0019] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0020] Please see Figure 1 This is a flowchart illustrating a method for adjusting the charging power of a battery in a vehicle, as provided in an embodiment of this application. Specifically, it includes: S110. Obtain the current charging power of the battery in the vehicle and determine the current charging power threshold. For example, the current charging power of the vehicle's battery is first obtained, and the current charging power threshold is determined. The current charging power represents the amount of power the system will actually deliver to the battery at the current moment. This current charging power is calculated in real-time by the vehicle's controller by collecting the energy recovery power of the drive motor, the drive power, and the engine's output power, based on the relationship between these three factors: Current charging power = Engine output power - Drive power + Energy recovery power. The current charging power threshold represents the maximum power the battery is allowed to receive at the current moment. This threshold is determined based on the vehicle's current engine speed. During smooth driving, the engine speed remains constant, thus the charging power threshold remains unchanged. By obtaining the current charging power and the charging power threshold separately, the two are subsequently compared to determine whether the current charging demand is within the battery's acceptable range, providing a basis for determining whether power adjustment is necessary.

[0021] S120. If the current charging power is greater than the current charging power threshold, adjust the value of the associated parameter of the current charging power to reduce the current charging power until the current charging power is not greater than the current charging power threshold. The value of the associated parameter is related to the value of the current charging power.

[0022] For example, after acquiring the current charging power and the current charging power threshold, the vehicle controller compares the two to determine whether the vehicle's current charging demand exceeds the maximum power limit that the battery can currently receive. Since the current charging power is determined by the energy recovery power, drive power, and engine output power through a computational relationship, there is a direct correlation between the current charging power and these parameters. These parameters constitute the relevant parameters for the current charging power. When the value of any one of these parameters changes, the value of the current charging power will change accordingly, either positively or negatively. Specifically, an increase in energy recovery power leads to an increase in the current charging power, a decrease in drive power leads to an increase in the current charging power, and an increase in engine output power leads to an increase in the current charging power. Based on this relationship, when the vehicle controller determines that the current charging power is greater than the current charging power threshold, it can adjust the value of at least one of the related parameters to change the value of the current charging power, gradually reducing it until it is no greater than the current charging power threshold. This avoids triggering the engine fuel cut-off protection due to the current charging power continuously exceeding the battery's acceptable range, thereby affecting the vehicle's driving smoothness and ride comfort.

[0023] In summary, the battery charging power adjustment method proposed in this application obtains the current charging power of the battery in the vehicle. When it is determined that the current charging power is greater than the current charging power threshold, the controller does not directly cut off the engine fuel supply, but actively performs an adjustment operation on the associated parameters of the current charging power until the current charging power is not greater than the current charging power threshold. The value of the associated parameter is related to the value of the current charging power. Therefore, when adjusting the value of the associated parameter, it is necessary to adjust the value of the associated parameter with the purpose of reducing the value of the current charging power, so that the current charging power after the reduction is not greater than the preset charging power threshold. This avoids the violent speed fluctuation caused by the sudden change in engine load due to fuel cut-off, and increases the driving smoothness and ride comfort of the vehicle.

[0024] In some examples, the associated parameters include energy recovery power or the heating power of the heating module in the vehicle; When the associated parameter is the energy recovery power, adjusting the value of the associated parameter of the current charging power includes: reducing the energy recovery power; When the associated parameter is the heating power, adjusting the value of the associated parameter of the current charging power includes increasing the heating power.

[0025] For example, the associated parameters include at least one of the energy recovery power and the heating power of the heating module in the vehicle. Since the current charging power is determined by the energy recovery power, the drive power, and the engine output power through the calculation relationship, when the value of the energy recovery power changes, the value of the current charging power will change in the same direction; that is, when the energy recovery power increases, the current charging power increases, and when the energy recovery power decreases, the current charging power decreases. Based on this association, when the vehicle controller determines that the current charging power is greater than the current charging power threshold, the vehicle controller first sends an energy recovery power adjustment command to the drive motor controller to reduce the energy recovery power until it decreases to a preset recovery power threshold, so that the current charging power decreases accordingly as the energy recovery power decreases. The preset recovery power threshold is pre-calibrated, specifically it can be calibrated to zero.

[0026] Alternatively, the vehicle controller can send a heating power adjustment command to the heating module controller to increase the heating power of the heating module, which can be a PTC (Positive Temperature Coefficient) heater. By increasing the heating power of the PTC heater, some of the electrical power output by the engine is consumed by the PTC heater, thereby reducing the electrical power delivered to the battery and further reducing the current charging power. In this case, the PTC heater heats the battery, and is installed around the battery, or it is installed inside the vehicle to meet the heating needs of the air conditioning system. During the adjustment process, the vehicle controller continuously acquires the updated current charging power and compares it with the current charging power threshold until the current charging power is no greater than the current charging power threshold. This stops the adjustment, preventing the engine fuel cut-off protection from being triggered due to the current charging power continuously exceeding the battery's acceptable range, thus maintaining stable engine speed.

[0027] In some examples, when the associated parameter is the heating power, after adjusting the value of the associated parameter for the current charging power, the method further includes: If the adjusted energy recovery power reaches the preset recovery power threshold and the current charging power is greater than the current charging power threshold, the heating power of the heating module is increased to reduce the current charging power until the current charging power is not greater than the current charging power threshold.

[0028] For example, firstly, an adjustment command to reduce the energy recovery power is sent to the controller of the drive motor to reduce the energy recovery power to a preset recovery power threshold. The current charging power decreases accordingly as the energy recovery power decreases, taking advantage of the unidirectional relationship between the energy recovery power and the current charging power. If the current charging power is still greater than the current charging power threshold after the energy recovery power has been reduced to the preset recovery power threshold, a heating power adjustment command is further sent to the controller of the heating module to increase the heating power of the PTC heater. The PTC heater consumes part of the power output by the engine for battery heating or air conditioning heating, thereby reducing the power delivered to the battery and further reducing the current charging power. During the graded adjustment process, the vehicle controller continuously obtains the updated current charging power in real time and compares it with the current charging power threshold until the current charging power is no greater than the current charging power threshold, at which point the adjustment stops.

[0029] In another scenario, the heating power of the PTC heater can be increased first. The PTC heater consumes part of the engine's output power for battery heating or air conditioning heating. When the heating module is unavailable, an adjustment command to reduce the energy recovery power is sent to the drive motor controller to reduce the energy recovery power to a preset recovery power threshold so that the current charging power is not greater than the current charging power threshold.

[0030] Therefore, when the current charging power exceeds the battery's acceptable range, there is no need to trigger the engine fuel cut-off. Instead, by prioritizing the reduction of energy recovery as a charging source and then actively increasing the PTC heater as a graded means of power consumption load, the current charging power gradually falls back to the battery's acceptable range. This fundamentally eliminates the trigger for engine fuel cut-off, thereby avoiding sudden changes in engine load and violent fluctuations in engine speed caused by fuel cut-off. It effectively maintains the continuity and stability of engine speed and significantly improves the driving smoothness of hybrid vehicles when battery charging capacity is limited.

[0031] In some examples, after adjusting the values ​​of the associated parameters of the current charging power, the method further includes: When the heating module is unavailable and the current charging power is greater than the current charging power threshold, the engine is controlled to operate according to the final intake air volume, and the current charging power threshold is adjusted so that the current charging power is not greater than the current charging power threshold.

[0032] For example, when the vehicle controller determines that the current charging power is greater than the current charging power threshold, it first reduces the energy recovery power. If the adjusted energy recovery power has reached the preset recovery power threshold (i.e., zero), but the current charging power is still greater than the current charging power threshold, it then increases the heating power of the heating module. If the heating module is unavailable (including situations where the heating module is forcibly shut down due to extreme environments, the heating module is unable to perform heating actions due to hardware damage, or the heating module cannot respond to heating power adjustment commands due to other system failures), and the current charging power is still greater than the current charging power threshold, the vehicle controller controls the engine to operate according to the final intake air volume and adjusts the current charging power threshold so that the current charging power is not greater than the current charging power threshold. This ensures that the engine's final intake air volume is always not lower than its stable operating lower limit, fundamentally avoiding the risk of speed fluctuations or engine stalling caused by excessively low final intake air volume.

[0033] In some examples, before controlling the engine to operate at the final intake air volume and adjusting the current charging power threshold, the method further includes: The engine's current speed, current intake air volume, and a pre-built speed-air volume table are obtained. The speed-air volume table records multiple engine speeds and the intake air volume corresponding to each speed. Obtain the target intake volume corresponding to the current speed from the speed and air volume table. If the current intake volume is less than the target intake volume, use the target intake volume as the final intake volume.

[0034] For example, the vehicle controller acquires the engine's current speed and current intake air volume, and reads a pre-built speed-to-intake air volume table stored within the vehicle controller. This table records multiple engine speeds and the corresponding intake air volume for each speed. This intake air volume is the minimum intake air volume limit obtained from bench calibration that allows the engine to maintain stable operation at the current speed. The vehicle controller uses the current speed as an index to query the speed-to-intake air volume table, obtains the target intake air volume corresponding to the current speed, and compares the target intake air volume with the current intake air volume. If the current intake air volume is less than the target intake air volume, the target intake air volume is used as the final intake air volume, and the engine is controlled to operate according to the final intake air volume. In extreme conditions where the heating module is unavailable and the current charging power is still greater than the current charging power threshold, the engine's current speed is obtained and a preset speed-air volume meter is consulted to determine the target intake volume that allows the engine to maintain stable operation at the current speed. The target intake volume is then compared with the current intake volume to obtain the final intake volume, and the engine is controlled to operate according to the final intake volume. This ensures that the engine's actual intake volume is never lower than its stable operating lower limit, fundamentally avoiding the risk of speed fluctuations or engine stalling caused by excessively low intake volume.

[0035] In some examples, after obtaining the target intake air volume corresponding to the current rotational speed from the rotational speed and air volume table, the process includes: If the current intake volume is greater than or equal to the target intake volume, the current intake volume is taken as the final intake volume.

[0036] For example, if the current intake air volume is greater than or equal to the target intake air volume, it means that the current intake air volume has reached or exceeded the minimum intake air volume limit required for stable engine operation. In this case, the current intake air volume is taken as the final intake air volume, and the engine is controlled to operate according to this final intake air volume, that is, to maintain the current intake air volume unchanged. This ensures that the actual intake air volume of the engine is always not lower than its lower limit for stable operation, fundamentally avoiding the risk of speed fluctuations or stalling caused by excessively low intake air volume.

[0037] In some examples, adjusting the current charging power threshold includes: Obtain the current engine speed and a pre-built speed-power table, which records multiple engine speeds and the charging power threshold corresponding to each speed. Obtain the target power threshold corresponding to the current speed from the speed-power table; The engine torque is determined based on the final intake air volume; The actual charging power of the battery is determined based on the torque and the current rotational speed. If the actual charging power is greater than the target power threshold, the actual charging power is used as the current charging power threshold.

[0038] For example, the vehicle controller reads a pre-built speed-power table stored within the vehicle controller. This table records multiple engine speeds and the corresponding charging power threshold for each speed. The charging power threshold is the charging power value obtained from bench calibration when the engine operates at its minimum intake air volume at the current speed. The vehicle controller queries this speed-power table using the current speed as an index to obtain the target power threshold corresponding to the current speed. Simultaneously, the vehicle controller determines the actual torque output by the engine at the current speed based on the final intake air volume, and then determines the engine's actual charging power based on this torque and the current speed. After obtaining the actual charging power, the vehicle controller compares the actual charging power with the target power threshold obtained from the speed-power table. If the actual charging power is greater than the target power threshold, the actual charging power replaces the original current charging power threshold in subsequent comparisons. This ensures that the actual charging power generated by the engine operating at its final intake air volume is acceptable to the battery and serves as the new current charging power threshold. This new threshold is used to determine whether the current charging power is greater than the current charging power threshold, preventing fuel cut-off protection from being triggered because the battery's acceptable power limit is lower than the engine's actual output power. When the actual charging power is less than or equal to the target power threshold, the current charging power threshold remains unchanged. At this point, the actual charging power generated by the engine operating at its final intake volume is within the acceptable range for the battery, and no adjustment to the charging power threshold is necessary. Therefore, the upper limit of the battery's allowable power is adjusted in reverse to be no less than the minimum actual output power of the engine. Thus, when the engine's intake volume has dropped to its minimum stable limit and the output power cannot be further reduced, adjusting the charging power threshold allows the battery's allowable charging power to match the engine's minimum output power, achieving power matching between the engine and battery. This completely eliminates the triggering of engine fuel cut-off due to insufficient battery charging capacity, effectively maintaining the continuity and stability of engine speed.

[0039] like Figure 2As shown, this application proposes a charging power adjustment system for a battery in a vehicle, the system comprising: a data acquisition module 21 and a power adjustment module 22; The data acquisition module 21 is configured to acquire the current charging power of the battery in the vehicle; The power adjustment module 22 is configured to: when the current charging power is greater than a preset charging power threshold, adjust the value of the associated parameter of the current charging power to reduce the value of the current charging power until the current charging power is not greater than the preset charging power threshold, wherein the value of the associated parameter is associated with the value of the current charging power.

[0040] The effects of applying the aforementioned method in the above system can be found in the description of the aforementioned method embodiments, and will not be repeated here.

[0041] like Figure 3 As shown, this application embodiment also provides an electronic device 300, including a memory 310, a processor 320, and a computer program 311 stored in the memory 310 and executable on the processor. When the processor 320 executes the computer program 311, it implements the steps of any of the above-mentioned methods for adjusting the charging power of the battery in the vehicle.

[0042] Since the electronic device described in this embodiment is the device used to implement the charging power adjustment device for a vehicle battery in the embodiments of this application, those skilled in the art can understand the specific implementation method and various variations of the electronic device in this embodiment based on the method described in the embodiments of this application. Therefore, how the electronic device implements the method in the embodiments of this application will not be described in detail here. Any device used by those skilled in the art to implement the method in the embodiments of this application is within the scope of protection of this application.

[0043] In practical implementation, when the computer program 311 is executed by the processor, it can achieve the following: Figure 1 Any of the corresponding implementation methods in the embodiments.

[0044] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0045] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-readable program code.

[0046] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0047] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0048] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0049] This application also provides a computer program product, which includes computer software instructions that, when executed on a processing device, cause the processing device to execute the LDPC decoding method of a solid-state drive controller.

[0050] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0051] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0052] In the several embodiments provided in this application, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms.

[0053] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0054] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0055] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0056] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0057] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0058] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. A method for adjusting the charging power of a battery in a vehicle, characterized in that, The method includes: Obtain the current charging power of the battery in the vehicle and determine the current charging power threshold; If the current charging power is greater than the current charging power threshold, the value of the associated parameter of the current charging power is adjusted to reduce the current charging power until the current charging power is not greater than the current charging power threshold. The value of the associated parameter is related to the value of the current charging power.

2. The method for adjusting the charging power of a battery in a vehicle according to claim 1, characterized in that, The associated parameters include energy recovery power or the heating power of the heating module in the vehicle; When the associated parameter is the energy recovery power, adjusting the value of the associated parameter of the current charging power includes: reducing the energy recovery power; When the associated parameter is the heating power, adjusting the value of the associated parameter of the current charging power includes increasing the heating power.

3. The method for adjusting the charging power of a battery in a vehicle according to claim 2, characterized in that, When the associated parameter is the heating power, after adjusting the value of the associated parameter of the current charging power, the method further includes: If the adjusted energy recovery power reaches the preset recovery power threshold and the current charging power is greater than the current charging power threshold, the heating power of the heating module is increased to reduce the current charging power until the current charging power is not greater than the current charging power threshold.

4. The method according to claim 3, characterized in that, After adjusting the values ​​of the associated parameters of the current charging power, the method further includes: When the heating module is unavailable and the current charging power is greater than the current charging power threshold, the engine is controlled to operate according to the final intake air volume, and the current charging power threshold is adjusted so that the current charging power is not greater than the current charging power threshold.

5. The method according to claim 4, characterized in that, Before controlling the engine to operate according to the final intake air volume and adjusting the current charging power threshold, the method further includes: The engine's current speed, current intake air volume, and a pre-built speed-air volume table are obtained. The speed-air volume table records multiple engine speeds and the intake air volume corresponding to each speed. Obtain the target intake volume corresponding to the current speed from the speed and air volume table. If the current intake volume is less than the target intake volume, use the target intake volume as the final intake volume.

6. The method for adjusting the charging power of a battery in a vehicle according to claim 5, characterized in that, After obtaining the target intake air volume corresponding to the current speed from the speed-volume meter, the process includes: If the current intake volume is greater than or equal to the target intake volume, the current intake volume is taken as the final intake volume.

7. The method according to claim 4, characterized in that, Adjusting the current charging power threshold includes: Obtain the current engine speed and a pre-built speed-power table, which records multiple engine speeds and the charging power threshold corresponding to each speed. Obtain the target power threshold corresponding to the current speed from the speed-power table; The engine torque is determined based on the final intake air volume; The actual charging power of the battery is determined based on the torque and the current rotational speed. If the actual charging power is greater than the target power threshold, the actual charging power is used as the current charging power threshold.

8. A battery charging power adjustment system for a vehicle, characterized in that, The system includes: a data acquisition module and a power adjustment module; The data acquisition module is configured to acquire the current charging power of the battery in the vehicle; The power adjustment module is configured to: when the current charging power is greater than a preset charging power threshold, adjust the value of the associated parameter of the current charging power to reduce the value of the current charging power until the current charging power is not greater than the preset charging power threshold, wherein the value of the associated parameter is associated with the value of the current charging power.

9. An electronic device, comprising: The memory and processor are characterized in that the processor is used to execute a computer program stored in the memory to implement the steps of a method for adjusting the charging power of a battery in a vehicle as described in any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of a method for adjusting the charging power of a battery in a vehicle as described in any one of claims 1-7.

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