CN114362329A - Method for determining output current of charging equipment and related equipment - Google Patents
Method for determining output current of charging equipment and related equipment Download PDFInfo
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
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Abstract
The utility model provides a charging equipment output current confirms method and relevant equipment, is applied to charging equipment, and the method includes: obtaining the current accumulated charge amount of the charging equipment in each pre-divided preset output current interval; determining a current life value of the charging equipment by using each current accumulated charging amount; and determining the current maximum output current of the charging equipment by using the current service life value. According to the charging method and the charging device, the service life value of the charging device is determined through the charging amount, and the current maximum output current of the charging device is flexibly adjusted according to the service life value, so that the charging device can provide charging service according to the current maximum output current when being used every time, the aging and performance decay speed of the charging device is reduced, and the service life of the charging device is prolonged.
Description
Technical Field
The disclosure relates to the field of electrical technologies, and in particular, to a method for determining an output current of a charging device and a related device.
Background
With the increasing popularity of electric vehicles, charging devices that provide charging services to electric vehicles are also being built and deployed continuously.
Currently, charging devices charge electric vehicles primarily at a fixed rated maximum output current. The charging equipment is used at the rated maximum output current every time, so that the aging of the charging equipment and the performance attenuation of the charging equipment are easily accelerated, and the service life of the charging equipment is shortened.
Therefore, how to slow down the aging and performance decay speed of the charging device and prolong the service life of the charging device becomes a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above problems, the present disclosure provides a charging device output current determining method and related device that overcome or at least partially solve the above problems, and the technical solutions are as follows:
a charging device output current determination method is applied to a charging device and comprises the following steps:
obtaining the current accumulated charge amount of the charging equipment in each pre-divided preset output current interval;
determining a current life value of the charging equipment by using each current accumulated charging amount;
and determining the current maximum output current of the charging equipment by using the current service life value.
Optionally, the determining the current life value of the charging device by using each current accumulated charging amount includes:
determining an interval life value corresponding to each preset output current interval of the charging equipment by respectively using each current accumulated charging amount;
and determining the current life value of the charging equipment according to the preset life weight corresponding to each preset output current interval and the interval life value.
Optionally, the determining, by respectively using each current accumulated charging amount, an interval life value corresponding to each preset output current interval of the charging device includes:
for any one of the preset output current intervals: and determining the section life value of the charging equipment corresponding to the preset output current section based on the life fitting function corresponding to the preset output current section and the current accumulated charging amount.
Optionally, the determining the current life value of the charging device according to the preset life weight corresponding to each preset output current interval and the interval life value includes:
and carrying out weighted summation based on the preset service life weight corresponding to each preset output current interval and the interval service life value, and determining the current service life value of the charging equipment.
Optionally, the determining the current maximum output current of the charging device by using the current life value includes:
and inquiring a preset service life-output current MAP based on the current service life value, and determining the current maximum output current of the charging equipment.
Optionally, after determining the current maximum output current of the charging device by using the current life value, the method further includes:
under the condition that the equipment to be charged is connected with the charging equipment, first information comprising the current maximum output current is sent to the equipment to be charged, so that the equipment to be charged determines the required current according to the first information, and second information comprising the required current is sent to the charging equipment;
and under the condition that the second information comprising the required current is received, judging whether the required current is larger than the current maximum output current, if so, charging the equipment to be charged according to the current maximum output current, and if not, charging the equipment to be charged according to the required current.
Optionally, a maximum value in the preset output current interval is not greater than a rated maximum output current of the charging device.
A charging device output current determining apparatus applied to a charging device, the apparatus comprising: an accumulated charge amount obtaining unit, a present life value determining unit and a present maximum output current determining unit,
the charging equipment comprises an accumulated charging quantity obtaining unit, a charging control unit and a charging control unit, wherein the accumulated charging quantity obtaining unit is used for obtaining the current accumulated charging quantity of the charging equipment in each preset output current interval which is divided in advance;
the current life value determining unit is used for determining the current life value of the charging equipment by using each current accumulated charging amount;
the present maximum output current determining unit is configured to determine the present maximum output current of the charging device by using the present life value.
A computer-readable storage medium on which a program is stored, the program, when executed by a processor, implementing the charging device output current determination method of any one of the above.
A charging device comprising at least one processor, and at least one memory connected to the processor, a bus; the processor and the memory complete mutual communication through the bus; the processor is configured to call program instructions in the memory to perform any one of the above-described charging device output current determination methods.
By means of the technical scheme, the method for determining the output current of the charging equipment and the related equipment are applied to the charging equipment, and the method comprises the following steps: obtaining the current accumulated charge amount of the charging equipment in each pre-divided preset output current interval; determining a current life value of the charging equipment by using each current accumulated charging amount; and determining the current maximum output current of the charging equipment by using the current service life value. According to the charging method and the charging device, the service life value of the charging device is determined through the charging amount, and the current maximum output current of the charging device is flexibly adjusted according to the service life value, so that the charging device can provide charging service according to the current maximum output current when being used every time, the aging and performance decay speed of the charging device is reduced, and the service life of the charging device is prolonged.
The foregoing description is only an overview of the technical solutions of the present disclosure, and the embodiments of the present disclosure are described below in order to make the technical means of the present disclosure more clearly understood and to make the above and other objects, features, and advantages of the present disclosure more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the disclosure. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic flowchart illustrating an implementation manner of a charging device output current determining method according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart illustrating another implementation manner of a charging device output current determination method according to an embodiment of the present disclosure;
fig. 3 is a schematic flowchart illustrating another implementation manner of a charging device output current determination method according to an embodiment of the present disclosure;
fig. 4 is a schematic flowchart illustrating another implementation manner of a charging device output current determination method according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram illustrating a charging device output current determining apparatus provided by an embodiment of the present disclosure;
fig. 6 shows a schematic structural diagram of an electronic device provided by an embodiment of the present disclosure.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, a schematic flowchart of an implementation manner of a method for determining an output current of a charging device provided by an embodiment of the present disclosure is applied to a charging device, and the method may include:
and S100, obtaining the current accumulated charging amount of the charging equipment in each preset output current interval divided in advance.
Alternatively, the charging device may be a device capable of charging an electric vehicle. For example: fill electric pile, charging case and charging box.
The embodiment of the disclosure can pre-divide a plurality of preset output current intervals according to the rated maximum output current of the charging device. Optionally, the maximum value in the preset output current interval is not greater than the rated maximum output current of the charging device. Optionally, in the embodiment of the present disclosure, a plurality of output current intervals may be pre-divided according to a percentage of a rated maximum output current of the charging device. For example: in the embodiment of the present disclosure, each 10% of the rated maximum output current may be used as an interval unit, and the divided preset output current interval may include: rated maximum output current (90%, 100%, (80%, 90%, (70%, 80%, (60%, 70%, (50%, 60%, (40%, 50%, (30%, 40%,), (20%, 30%, (10%, 20%,) and (0%, 10%,).
The embodiment of the disclosure can count the current accumulated charging amount of the charging equipment in each preset output current interval in real time.
And S200, determining the current life value of the charging equipment by using the current accumulated charging amount.
Optionally, based on the method shown in fig. 1, as shown in fig. 2, a flowchart of another implementation manner of the method for determining the output current of the charging device provided by the embodiment of the present disclosure may include:
and S210, respectively determining the section life value of the charging equipment corresponding to each preset output current section by using each current accumulated charging amount.
Optionally, in the embodiment of the present disclosure, for any preset output current interval: and determining an interval life value corresponding to the preset output current interval of the charging equipment based on the life fitting function corresponding to the preset output current interval and the current accumulated charging amount.
The life fitting function is a relation function of the section life value and the accumulated charging amount obtained by performing data fitting on the section life value data and the accumulated charging amount data of each preset output current section obtained in the aging test process of the charging equipment.
Optionally, the life fitting functions corresponding to different preset output current intervals may be different.
The embodiment of the disclosure can take the current accumulated charging amount as an independent variable, take the interval life value as a dependent variable, and calculate the interval life value corresponding to the preset output current interval of the charging equipment through the life fitting function. Alternatively, the interval lifetime value may be a percentage. As the integrated charge amount increases, the zone life value gradually decreases from 100% to 0%.
And S220, determining the current life value of the charging equipment according to the preset life weight and the interval life value corresponding to each preset output current interval.
Optionally, in the embodiment of the present disclosure, the current life value of the charging device may be determined by performing weighted summation based on the preset life weight and the interval life value corresponding to each preset output current interval.
It can be understood that, in the embodiment of the present disclosure, the preset lifetime weight corresponding to each preset output current interval may be set according to an actual requirement. Optionally, the preset life weight corresponding to each preset output current interval may be set according to data generated by the charging device in the aging test process. Optionally, in a normal case, the larger the maximum current threshold of the preset output current interval is, the larger the preset life weight corresponding to the preset output current interval is. For example: assuming that the preset output current interval a is (90%, 100%) of the rated maximum output current, the preset life weight corresponding to the preset output current interval a is a, the preset output current interval B is (80%, 90%) of the rated maximum output current, and the preset life weight corresponding to the preset output current interval B is B, then a is greater than B.
For ease of understanding, the description is made herein by way of example: assuming that the section life values corresponding to the preset output current sections are η 1, η 2, η 3,. η 9 and η 10 in sequence, and the preset life weights corresponding to the preset output current sections are λ 1, λ 2, λ 3,. λ 9 and λ 10 in sequence, the current life value h of the charging device is η 1 × λ 1+ η 2 × λ 2+ η 3 × λ 3+. η 9 × λ 9+ η 10 × λ 10.
And S300, determining the current maximum output current of the charging equipment by using the current life value.
Optionally, based on the method shown in fig. 1, as shown in fig. 3, a flowchart of another implementation manner of the method for determining the output current of the charging device provided by the embodiment of the present disclosure is shown, and step S300 may include:
and S310, inquiring a preset life-output current MAP based on the current life value, and determining the current maximum output current of the charging equipment.
The preset life-output current MAP is a two-dimensional array of the correlation between the life value and the maximum output current measured during the aging test of the charging device. Optionally, in an aging test of the charging device, the embodiment of the disclosure may divide a plurality of life intervals according to a total life value of the charging device, and determine a maximum output current corresponding to each life interval, so as to obtain the preset life-output current MAP. Specifically, the embodiment of the present disclosure may use each 10% of the total life value of the charging device as an interval unit, and the divided life interval may include: the maximum output current of the charging device in each life interval was determined by aging tests for (90%, 100% ], (80%, 90% ], (70%, 80% ], (60%, 70% ], (50%, 60% ], (40%, 50% ], (30%, 40% ], (20%, 30% ]), (10%, 20% ]), and (0%, 10% ]) of the total life value.
According to the embodiment of the disclosure, the current maximum output current corresponding to the life interval in which the current life value is located can be inquired by presetting the life-output current MAP.
Due to the heat effect of current, when load current passes through the cable, the conductor can generate heat, and simultaneously, the skin effect of charge, the eddy current loss of the steel armor and the loss of an insulating medium can generate additional heat, so that the temperature of the cable is increased. When the charging device is operated at a fixed rated maximum output current for a long time, the aging of the insulation is accelerated by an excessively high temperature until the insulation is broken down, so that the safety of a charging loop is affected, and the accelerated aging of the charging device is caused. Therefore, the embodiment of the disclosure can slow down the aging and performance decay speed of electronic components in the charging equipment and prolong the service life of the charging equipment by reasonably controlling the maximum output current of the charging equipment.
The present disclosure provides a method for determining an output current of a charging device, which is applied to the charging device, and the method includes: obtaining the current accumulated charge amount of the charging equipment in each pre-divided preset output current interval; determining a current life value of the charging equipment by using each current accumulated charging amount; and determining the current maximum output current of the charging equipment by using the current service life value. According to the charging method and the charging device, the service life value of the charging device is determined through the charging amount, and the current maximum output current of the charging device is flexibly adjusted according to the service life value, so that the charging device can provide charging service according to the current maximum output current when being used every time, the aging and performance decay speed of the charging device is reduced, and the service life of the charging device is prolonged.
Optionally, based on the method shown in fig. 1, as shown in fig. 4, a flowchart of another implementation manner of the method for determining the output current of the charging device provided in the embodiment of the present disclosure may further include, after step S300:
s400, under the condition that the equipment to be charged is connected to the charging equipment, first information including the current maximum output current is sent to the equipment to be charged, so that the equipment to be charged determines the required current according to the first information, and second information including the required current is sent to the charging equipment.
Optionally, the device to be charged may be an electric vehicle. The BATTERY management system (BATTERY MANAGEMENT SYSTEM, BMS) of the electric vehicle can determine the required current after receiving the current maximum output current in the first message and combining the voltage and the temperature of the BATTERY of the electric vehicle. In the usual case, the demanded current is less than the present maximum output current.
S500, under the condition that second information comprising the required current is received, whether the required current is larger than the current maximum output current is judged, if so, the step S600 is executed, and if not, the step S700 is executed.
S600, charging the equipment to be charged according to the current maximum output current.
S700, charging the equipment to be charged according to the required current.
Under a normal condition, the maximum output current capacity of the charging equipment is reduced along with the reduction of the service life, the current maximum output current is determined by determining the current service life value of the charging equipment, so that the charging equipment to be charged can be charged according to the current maximum output current under the condition that the required current of the charging equipment is greater than the current maximum output current, the service life and the performance of the charging equipment are protected, the aging and performance attenuation speed of the charging equipment are reduced, and the service life of the charging equipment is prolonged.
Although the operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous.
It should be understood that the various steps recited in the method embodiments of the present disclosure may be performed in a different order, and/or performed in parallel. Moreover, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present disclosure is not limited in this respect.
Corresponding to the above method embodiment, an embodiment of the present disclosure further provides a charging device output current determining apparatus, whose structure is shown in fig. 5, and the apparatus is applied to a charging device, and the apparatus includes: an integrated charge amount obtaining unit 100, a present life value determining unit 200, and a present maximum output current determining unit 300.
An accumulated charge amount obtaining unit 100, configured to obtain a current accumulated charge amount of the charging apparatus in each preset output current interval divided in advance.
Alternatively, the charging device may be a device capable of charging an electric vehicle. For example: fill electric pile, charging case and charging box.
The embodiment of the disclosure can pre-divide a plurality of preset output current intervals according to the rated maximum output current of the charging device. Optionally, the maximum value in the preset output current interval is not greater than the rated maximum output current of the charging device. Optionally, in the embodiment of the present disclosure, a plurality of output current intervals may be pre-divided according to a percentage of a rated maximum output current of the charging device. For example: in the embodiment of the present disclosure, each 10% of the rated maximum output current may be used as an interval unit, and the divided preset output current interval may include: rated maximum output current (90%, 100%, (80%, 90%, (70%, 80%, (60%, 70%, (50%, 60%, (40%, 50%, (30%, 40%,), (20%, 30%, (10%, 20%,) and (0%, 10%,).
The embodiment of the disclosure can count the current accumulated charging amount of the charging equipment in each preset output current interval in real time.
A current life value determination unit 200, configured to determine a current life value of the charging apparatus using each current accumulated charge amount.
Alternatively, the current life value determining unit 200 may include: an interval lifetime value determining subunit and a current lifetime value determining subunit.
And the interval life value determining subunit is used for determining the interval life value corresponding to each preset output current interval of the charging equipment by respectively utilizing each current accumulated charging amount.
Optionally, the interval lifetime value determining subunit is specifically configured to, for any preset output current interval: and determining an interval life value corresponding to the preset output current interval of the charging equipment based on the life fitting function corresponding to the preset output current interval and the current accumulated charging amount.
The life fitting function is a relation function of the section life value and the accumulated charging amount obtained by performing data fitting on the section life value data and the accumulated charging amount data of each preset output current section obtained in the aging test process of the charging equipment.
Optionally, the life fitting functions corresponding to different preset output current intervals may be different.
The embodiment of the disclosure can take the current accumulated charging amount as an independent variable, take the interval life value as a dependent variable, and calculate the interval life value corresponding to the preset output current interval of the charging equipment through the life fitting function. Alternatively, the interval lifetime value may be a percentage. As the integrated charge amount increases, the zone life value gradually decreases from 100% to 0%.
And the current life value determining subunit is used for determining the current life value of the charging equipment according to the preset life weight and the interval life value corresponding to each preset output current interval.
Optionally, the present life value determining subunit is specifically configured to perform weighted summation based on preset life weights and section life values corresponding to the preset output current sections, and determine the present life value of the charging device.
It can be understood that, in the embodiment of the present disclosure, the preset lifetime weight corresponding to each preset output current interval may be set according to an actual requirement. Optionally, the preset life weight corresponding to each preset output current interval may be set according to data generated by the charging device in the aging test process. Optionally, in a normal case, the larger the maximum current threshold of the preset output current interval is, the larger the preset life weight corresponding to the preset output current interval is. For example: assuming that the preset output current interval a is (90%, 100%) of the rated maximum output current, the preset life weight corresponding to the preset output current interval a is a, the preset output current interval B is (80%, 90%) of the rated maximum output current, and the preset life weight corresponding to the preset output current interval B is B, then a is greater than B.
For ease of understanding, the description is made herein by way of example: assuming that the section life values corresponding to the preset output current sections are η 1, η 2, η 3,. η 9 and η 10 in sequence, and the preset life weights corresponding to the preset output current sections are λ 1, λ 2, λ 3,. λ 9 and λ 10 in sequence, the current life value h of the charging device is η 1 × λ 1+ η 2 × λ 2+ η 3 × λ 3+. η 9 × λ 9+ η 10 × λ 10.
A present maximum output current determining unit 300, configured to determine a present maximum output current of the charging device by using the present life value.
Optionally, the present maximum output current determining unit 300 is specifically configured to query the preset life-output current MAP based on the present life value, and determine the present maximum output current of the charging device.
The preset life-output current MAP is a two-dimensional array of the correlation between the life value and the maximum output current measured during the aging test of the charging device. Optionally, in an aging test of the charging device, the embodiment of the disclosure may divide a plurality of life intervals according to a total life value of the charging device, and determine a maximum output current corresponding to each life interval, so as to obtain the preset life-output current MAP. Specifically, the embodiment of the present disclosure may use each 10% of the total life value of the charging device as an interval unit, and the divided life interval may include: the maximum output current of the charging device in each life interval was determined by aging tests for (90%, 100% ], (80%, 90% ], (70%, 80% ], (60%, 70% ], (50%, 60% ], (40%, 50% ], (30%, 40% ], (20%, 30% ]), (10%, 20% ]), and (0%, 10% ]) of the total life value.
According to the embodiment of the disclosure, the current maximum output current corresponding to the life interval in which the current life value is located can be inquired by presetting the life-output current MAP.
Due to the heat effect of current, when load current passes through the cable, the conductor can generate heat, and simultaneously, the skin effect of charge, the eddy current loss of the steel armor and the loss of an insulating medium can generate additional heat, so that the temperature of the cable is increased. When the charging device is operated at a fixed rated maximum output current for a long time, the aging of the insulation is accelerated by an excessively high temperature until the insulation is broken down, so that the safety of a charging loop is affected, and the accelerated aging of the charging device is caused. Therefore, the embodiment of the disclosure can slow down the aging and performance decay speed of electronic components in the charging equipment and prolong the service life of the charging equipment by reasonably controlling the maximum output current of the charging equipment.
The utility model provides a charging equipment output current determining device, is applied to charging equipment, and the method includes: obtaining the current accumulated charge amount of the charging equipment in each pre-divided preset output current interval; determining a current life value of the charging equipment by using each current accumulated charging amount; and determining the current maximum output current of the charging equipment by using the current service life value. According to the charging method and the charging device, the service life value of the charging device is determined through the charging amount, and the current maximum output current of the charging device is flexibly adjusted according to the service life value, so that the charging device can provide charging service according to the current maximum output current when being used every time, the aging and performance decay speed of the charging device is reduced, and the service life of the charging device is prolonged.
Optionally, the apparatus may further include: the charging device comprises an information sending unit, an output current judging unit and a charging unit.
And an information sending unit, configured to, after the present maximum output current determining unit 300 determines the present maximum output current of the charging device by using the present life value, send first information including the present maximum output current to the device to be charged in a case where the device to be charged is connected to the charging device, so that the device to be charged determines a required current according to the first information, and send second information including the required current to the charging device.
Optionally, the device to be charged may be an electric vehicle. The BATTERY management system (BATTERY MANAGEMENT SYSTEM, BMS) of the electric vehicle can determine the required current after receiving the current maximum output current in the first message and combining the voltage and the temperature of the BATTERY of the electric vehicle. In the usual case, the demanded current is less than the present maximum output current.
And the output current judging unit is used for judging whether the required current is greater than the current maximum output current or not under the condition of receiving second information comprising the required current, if so, the charging unit is triggered to charge the equipment to be charged according to the current maximum output current, and if not, the charging unit is triggered to charge the equipment to be charged according to the required current.
Under a normal condition, the maximum output current capacity of the charging equipment is reduced along with the reduction of the service life, the current maximum output current is determined by determining the current service life value of the charging equipment, so that the charging equipment to be charged can be charged according to the current maximum output current under the condition that the required current of the charging equipment is greater than the current maximum output current, the service life and the performance of the charging equipment are protected, the aging and performance attenuation speed of the charging equipment are reduced, and the service life of the charging equipment is prolonged.
The charging device output current determination apparatus includes a processor and a memory, the above-mentioned accumulated charge amount obtaining unit 100, the present life value determination unit 200, the present maximum output current determination unit 300, and the like are all stored in the memory as program units, and the processor executes the above-mentioned program units stored in the memory to implement corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The kernel can be set to be one or more, the kernel parameter is adjusted to determine the service life value of the charging equipment through the charging amount, and the current maximum output current of the charging equipment is flexibly adjusted according to the service life value, so that the charging equipment can provide charging service according to the current maximum output current when being used every time, the aging and performance decay speed of the charging equipment is slowed down, and the service life of the charging equipment is prolonged.
The disclosed embodiments provide a computer-readable storage medium having stored thereon a program that, when executed by a processor, implements the charging device output current determination method.
The embodiment of the disclosure provides a processor for running a program, wherein the program runs to execute the charging equipment output current determination method.
As shown in fig. 6, the present disclosure provides a charging apparatus 1000, where the charging apparatus 1000 includes at least one processor 1001, and at least one memory 1002 and a bus 1003 connected to the processor 1001; the processor 1001 and the memory 1002 complete communication with each other through the bus 1003; the processor 1001 is configured to call program instructions in the memory 1002 to execute the above-described output current determination method of the charging apparatus 1000.
The present disclosure also provides a computer program product adapted to perform a program of initializing a charging device output current determination method step when executed on a charging device.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus, charging devices (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, the charging device includes one or more processors (CPUs), memory, and a bus. The charging device may also include an input/output interface, a network interface, and the like.
The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip. The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The above are merely examples of the present disclosure, and are not intended to limit the present disclosure. Various modifications and variations of this disclosure will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure should be included in the scope of the claims of the present disclosure.
Claims (10)
1. A charging device output current determination method is applied to a charging device, and comprises the following steps:
obtaining the current accumulated charge amount of the charging equipment in each pre-divided preset output current interval;
determining a current life value of the charging equipment by using each current accumulated charging amount;
and determining the current maximum output current of the charging equipment by using the current service life value.
2. The method of claim 1, wherein said determining a current life value of said charging device using each of said current cumulative charges comprises:
determining an interval life value corresponding to each preset output current interval of the charging equipment by respectively using each current accumulated charging amount;
and determining the current life value of the charging equipment according to the preset life weight corresponding to each preset output current interval and the interval life value.
3. The method of claim 2, wherein determining the zone life value of the charging device corresponding to each preset output current zone by using each current accumulated charge amount respectively comprises:
for any one of the preset output current intervals: and determining the section life value of the charging equipment corresponding to the preset output current section based on the life fitting function corresponding to the preset output current section and the current accumulated charging amount.
4. The method of claim 2, wherein determining the current life value of the charging device according to the preset life weight and the interval life value corresponding to each preset output current interval comprises:
and carrying out weighted summation based on the preset service life weight corresponding to each preset output current interval and the interval service life value, and determining the current service life value of the charging equipment.
5. The method of claim 1, wherein said determining a present maximum output current of the charging device using the present life value comprises:
and inquiring a preset service life-output current MAP based on the current service life value, and determining the current maximum output current of the charging equipment.
6. The method of claim 1, wherein after said determining a present maximum output current of the charging device using the present life value, the method further comprises:
under the condition that the equipment to be charged is connected with the charging equipment, first information comprising the current maximum output current is sent to the equipment to be charged, so that the equipment to be charged determines the required current according to the first information, and second information comprising the required current is sent to the charging equipment;
and under the condition that the second information comprising the required current is received, judging whether the required current is larger than the current maximum output current, if so, charging the equipment to be charged according to the current maximum output current, and if not, charging the equipment to be charged according to the required current.
7. The method of claim 1, wherein a maximum value in the preset output current interval is not greater than a rated maximum output current of the charging device.
8. An apparatus for determining output current of a charging device, the apparatus being applied to the charging device, the apparatus comprising: an accumulated charge amount obtaining unit, a present life value determining unit and a present maximum output current determining unit,
the charging equipment comprises an accumulated charging quantity obtaining unit, a charging control unit and a charging control unit, wherein the accumulated charging quantity obtaining unit is used for obtaining the current accumulated charging quantity of the charging equipment in each preset output current interval which is divided in advance;
the current life value determining unit is used for determining the current life value of the charging equipment by using each current accumulated charging amount;
the present maximum output current determining unit is configured to determine the present maximum output current of the charging device by using the present life value.
9. A computer-readable storage medium on which a program is stored, the program implementing the charging device output current determination method according to any one of claims 1 to 7 when executed by a processor.
10. A charging device comprising at least one processor, and at least one memory connected to the processor, a bus; the processor and the memory complete mutual communication through the bus; the processor is configured to invoke program instructions in the memory to perform the charging device output current determination method of any one of claims 1 to 7.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130054045A1 (en) * | 2011-08-29 | 2013-02-28 | Sap Ag | Vehicle electric charging schedule selection and evolution based on multiple weighted charging objectives |
| CN106786843A (en) * | 2016-11-24 | 2017-05-31 | 惠州Tcl移动通信有限公司 | The method of adjustment and system of a kind of charging current, electric terminal |
| CN107482713A (en) * | 2017-08-08 | 2017-12-15 | 珠海格力电器股份有限公司 | A kind of charging device, charging system and charge control method |
| CN109941147A (en) * | 2019-03-18 | 2019-06-28 | 广州小鹏汽车科技有限公司 | It is a kind of for extending the method and electronic equipment of power battery service life |
| CN110239387A (en) * | 2019-07-22 | 2019-09-17 | 萍乡学院 | A kind of automobile charging system actual Internet-based |
| CN113246781A (en) * | 2021-05-21 | 2021-08-13 | 福建星云电子股份有限公司 | Charging pile power dynamic distribution output method |
| CN113273050A (en) * | 2019-03-25 | 2021-08-17 | Oppo广东移动通信有限公司 | Battery charging method, device, equipment and readable storage medium |
-
2022
- 2022-02-21 CN CN202210157232.2A patent/CN114362329A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130054045A1 (en) * | 2011-08-29 | 2013-02-28 | Sap Ag | Vehicle electric charging schedule selection and evolution based on multiple weighted charging objectives |
| CN106786843A (en) * | 2016-11-24 | 2017-05-31 | 惠州Tcl移动通信有限公司 | The method of adjustment and system of a kind of charging current, electric terminal |
| CN107482713A (en) * | 2017-08-08 | 2017-12-15 | 珠海格力电器股份有限公司 | A kind of charging device, charging system and charge control method |
| CN109941147A (en) * | 2019-03-18 | 2019-06-28 | 广州小鹏汽车科技有限公司 | It is a kind of for extending the method and electronic equipment of power battery service life |
| CN113273050A (en) * | 2019-03-25 | 2021-08-17 | Oppo广东移动通信有限公司 | Battery charging method, device, equipment and readable storage medium |
| CN110239387A (en) * | 2019-07-22 | 2019-09-17 | 萍乡学院 | A kind of automobile charging system actual Internet-based |
| CN113246781A (en) * | 2021-05-21 | 2021-08-13 | 福建星云电子股份有限公司 | Charging pile power dynamic distribution output method |
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