CN111361458A - Power calculation method and device and electronic equipment - Google Patents
Power calculation method and device and electronic equipment Download PDFInfo
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- CN111361458A CN111361458A CN202010231986.9A CN202010231986A CN111361458A CN 111361458 A CN111361458 A CN 111361458A CN 202010231986 A CN202010231986 A CN 202010231986A CN 111361458 A CN111361458 A CN 111361458A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Abstract
The invention provides a power calculation method, a power calculation device and electronic equipment, wherein after the reference maximum working power of a fuel cell is obtained, the reference maximum working power is not directly used as the actual maximum working power, but a corresponding target power interval and a constant power value corresponding to the target power interval are determined, so that when the reference maximum working power obtained by calculation at different moments is positioned in the same target power interval, the actually selected actual maximum working power is the same constant power value, and the fluctuation of the power value of the maximum working power of the fuel cell at different moments is reduced. In addition, the calculated actual maximum working power can be continuously used for a preset time period, so that the stability of the actual maximum working power in the preset time period can be ensured, and the problem that the performance and the service life of the fuel cell are influenced due to the fact that the power value of the maximum working power of the fuel cell fluctuates greatly at different moments is solved.
Description
Technical Field
The invention relates to the field of data processing, in particular to a power calculation method and device and electronic equipment.
Background
In a fuel cell vehicle, a vehicle control unit VCU controls a fuel cell system controller FCU to operate, and specifically, the VCU calculates and transmits a fuel cell demand power to the FCU, so that the FCU operates according to the fuel cell demand power. The VCU calculates the maximum operating power of the reference fuel cell when the power required by the fuel cell is obtained. The method for calculating the maximum working power of the fuel cell comprises the following steps: the maximum continuous charging power value of a power cell and the allowable power generation power value of the fuel cell in a fuel cell vehicle are obtained, and the smaller value of the two is taken as the maximum operating power of the fuel cell. The maximum continuous charging power value of the power battery and the allowable power generation power value of the fuel battery are greatly influenced by temperature, and the power value of the maximum working power of the fuel battery calculated by the method for calculating the maximum working power of the fuel battery has large fluctuation at different moments, so that the damage to the interior of the fuel battery is large, and the performance and the service life of the fuel battery are influenced.
Disclosure of Invention
In view of this, the present invention provides a power calculation method, a power calculation device, and an electronic device, so as to solve the problem in the prior art that the power value of the maximum operating power of the fuel cell calculated by the calculation fluctuates greatly at different times, and the internal damage to the fuel cell is large, thereby affecting the performance and the service life of the fuel cell.
In order to achieve the purpose, the invention provides the following technical scheme:
a method of power calculation, comprising:
acquiring a reference maximum operating power of the fuel cell;
determining a target power interval corresponding to the reference maximum working power, and acquiring a constant power value corresponding to the target power interval;
determining the constant power value as an actual maximum operating power of the fuel cell for a preset time period.
Optionally, after the obtaining the reference maximum operating power of the fuel cell, the method further includes:
acquiring real-time consumed power of an auxiliary machine;
and determining the sum of the reference maximum working power and the real-time consumed power as the modified reference maximum working power.
Optionally, obtaining a reference maximum operating power of the fuel cell comprises:
acquiring maximum continuous charging power of the power battery calculated according to the continuous charging current limit value of the power battery and the total voltage of the power battery;
acquiring initial maximum working power of the fuel cell;
and respectively carrying out filtering operation on the maximum continuous charging power and the initial maximum working power, and determining the smaller value of the filtered maximum continuous charging power and the initial maximum working power as the reference maximum working power of the fuel cell.
Optionally, obtaining a reference maximum operating power of the fuel cell comprises:
and acquiring the allowable charging power of the power battery sent by the power battery, and determining the allowable charging power of the power battery as the reference maximum working power.
Optionally, determining a target power interval corresponding to the reference maximum working power, and acquiring a constant power value corresponding to the target power interval, includes:
acquiring at least one reference power interval of the fuel cell and a constant power value corresponding to the reference power interval;
determining a reference power interval corresponding to the reference maximum working power, and determining the reference power interval as a target power interval;
and acquiring a constant power value corresponding to the target power interval.
A power computing device, comprising:
the power acquisition module is used for acquiring the reference maximum working power of the fuel cell;
the power determining module is used for determining a target power interval corresponding to the reference maximum working power and acquiring a constant power value corresponding to the target power interval;
a power setting module to determine the constant power value as an actual maximum operating power of the fuel cell for a preset time period.
Optionally, the method further comprises:
and the power correction module is used for acquiring the real-time consumed power of the auxiliary machine and determining the sum of the reference maximum working power and the real-time consumed power as the corrected reference maximum working power.
Optionally, the power obtaining module includes:
the first obtaining submodule is used for obtaining the maximum continuous charging power of the power battery, which is obtained by calculation according to the continuous charging current limit value of the power battery and the total voltage of the power battery;
the second acquisition submodule is used for acquiring the initial maximum working power of the fuel cell;
and the first power setting submodule is used for respectively carrying out filtering operation on the maximum continuous charging power and the initial maximum working power and determining the smaller value of the filtered maximum continuous charging power and the initial maximum working power as the reference maximum working power of the fuel cell.
Optionally, the power obtaining module includes:
and the second power setting submodule is used for acquiring the allowable charging power of the power battery sent by the power battery and determining the allowable charging power of the power battery as the reference maximum working power.
An electronic device, comprising: a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to:
acquiring a reference maximum operating power of the fuel cell;
determining a target power interval corresponding to the reference maximum working power, and acquiring a constant power value corresponding to the target power interval;
determining the constant power value as an actual maximum operating power of the fuel cell for a preset time period.
According to the technical scheme, after the reference maximum working power of the fuel cell is obtained, the reference maximum working power is not directly used as the actual maximum working power, the corresponding target power interval and the constant power value corresponding to the target power interval are determined, so that when the reference maximum working powers obtained by calculation at different moments are located in the same target power interval, the actually selected actual maximum working powers are the same constant power value, and the fluctuation of the power value of the maximum working power of the fuel cell at different moments is reduced.
Further, after the actual maximum working power is obtained, the actual maximum working power is used within a preset time period, that is, the calculated actual maximum working power is continuously used within the preset time period, so that the stability of the actual maximum working power within the preset time period can be ensured, and the problem that the performance and the service life of the fuel cell are influenced due to the fact that the power value of the maximum working power of the fuel cell fluctuates greatly at different moments is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a method of power calculation according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for power calculation according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a power calculating device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In a fuel cell vehicle, a vehicle control unit VCU controls a fuel cell system controller FCU to operate, and specifically, the VCU calculates and transmits a fuel cell demand power to the FCU, so that the FCU operates according to the fuel cell demand power. The VCU calculates the maximum operating power of the reference fuel cell when the power required by the fuel cell is obtained. The method for calculating the maximum working power of the fuel cell comprises the following steps: the maximum continuous charging power value of a power cell and the allowable power generation power value of the fuel cell in a fuel cell vehicle are obtained, and the smaller value of the two is taken as the maximum operating power of the fuel cell. The maximum continuous charging power value of the power battery and the allowable power generation power value of the fuel battery are greatly influenced by temperature, particularly the temperature is low in winter, and the maximum continuous charging power value of the power battery and the allowable power generation power value of the fuel battery are greatly fluctuated, so that the power of the fuel battery is frequently fluctuated and even started and stopped, and the performance and the service life of the fuel battery are influenced.
Therefore, after the reference maximum working power of the fuel cell is obtained, the reference maximum working power is not directly used as the actual maximum working power, but a corresponding target power interval and a constant power value corresponding to the target power interval are determined, so that when the reference maximum working powers obtained by calculation at different moments are in the same target power interval, the actually selected actual maximum working powers are the same constant power value, and the fluctuation of the power value of the maximum working power of the fuel cell at different moments is reduced.
Further, after the actual maximum working power is obtained, the actual maximum working power is used within a preset time period, that is, the calculated actual maximum working power is continuously used within the preset time period, so that the stability of the actual maximum working power within the preset time period can be ensured, and the problem that the performance and the service life of the fuel cell are influenced due to the fact that the power value of the maximum working power of the fuel cell fluctuates greatly at different moments is solved.
Specifically, referring to fig. 1, the power calculation method may include:
and S11, acquiring the reference maximum working power of the fuel cell.
The reference maximum operating power in this embodiment is the determined maximum operating power of the fuel cell, and in order to avoid large fluctuation of the maximum operating power of the fuel cell at different times, the maximum operating power of the fuel cell is adjusted, and the specific adjustment process refers to step S12-13.
In practical applications, there are two ways to obtain the reference maximum operating power of the fuel cell, which will be described separately.
1. Referring to fig. 2, step S11 may include;
and S21, acquiring the maximum continuous charging power of the power battery calculated according to the continuous charging current limit value of the power battery and the total voltage of the power battery.
In practical applications, the execution subject for executing the power calculation method in the embodiment of the present invention may be a vehicle control unit VCU, and the VCU may communicate with the power battery controller BMS and the fuel cell system controller FCU, and obtain data from the BMS and the FCU, such as obtaining the continuous charging current limit value of the power battery and the total voltage of the power battery from the BMS. The initial maximum operating power of the fuel cell calculated by the FCU is obtained from the FCU.
The maximum continuous charging power P1 of the power battery is the continuous charging current limit of the power battery and the total voltage of the power battery.
And S22, acquiring the initial maximum working power of the fuel cell.
The initial maximum operating power of the fuel cell is denoted by P2.
And S23, respectively carrying out filtering operation on the maximum continuous charging power and the initial maximum working power, and determining the smaller value of the filtered maximum continuous charging power and the initial maximum working power as the reference maximum working power of the fuel cell.
In order to prevent P1, P2 from frequently jumping due to temperature, etc., P1, P2 may be filtered, and then the two filtered power values are compared, and the smaller one is taken as the reference maximum operating power P3 of the fuel cell.
2. Step S11 may include;
and acquiring the allowable charging power of the power battery sent by the power battery, and determining the allowable charging power of the power battery as the reference maximum working power.
In practical applications, the calculation process of the reference maximum operating power of the first fuel cell is complex, but the calculation result is accurate, and if the accuracy requirement on the calculation result is not high, the BMS may directly obtain the allowable charging power of the power battery, which is determined as the reference maximum operating power, from the BMS.
In another implementation manner of the present invention, the power of the auxiliary machinery (such as an electric air conditioner and an electric heater) of the vehicle is relatively large in winter, so that the power required by the entire vehicle actual fuel cell calculated by the VCU is relatively large, and generally, when the temperature of the vehicle is too low or the vehicle is just started, the auxiliary machinery power is not considered in the reference maximum working power of the fuel cell calculated by the VCU, so that the reference maximum working power of the fuel cell calculated by the VCU is smaller than the power required by the entire vehicle actual fuel cell, and therefore the reference maximum working power of the fuel cell needs to be corrected by using the auxiliary machinery power.
Specifically, after step S11, the method may further include:
and acquiring the real-time consumed power of the auxiliary machine, and determining the sum of the reference maximum working power and the real-time consumed power as the corrected reference maximum working power.
And the real-time consumed power of the auxiliary machine is the real-time power of the power battery plus the real-time power of the fuel battery plus the power of the driving motor.
In this embodiment, the reference maximum operating power is corrected by using the real-time power consumption of the auxiliary machine, so that the obtained reference maximum operating power of the fuel cell can be ensured to take the power consumption of more devices on the vehicle into account, for example, the real-time power of the auxiliary machine is taken into account, so as to avoid the power cell SOC imbalance caused by insufficient power of the fuel cell due to the fluctuation of the real-time power of the auxiliary machine, thereby improving the accuracy of the determined reference maximum operating power of the fuel cell,
and S12, determining a target power interval corresponding to the reference maximum working power, and acquiring a constant power value corresponding to the target power interval.
In practical application, in order to avoid the fluctuation of the real-time reference maximum working power with factors such as temperature, in this embodiment, the power suitable for the fuel cell is divided into n (n is a positive integer) segments (referred to as reference power segments) according to the working power segment of the fuel cell, the required power of the fuel cell in each reference power segment is set to be a constant power value, and generally, when the constant power value is set, the minimum value of the reference power segment is selected, or a value smaller than the minimum value is determined by a technician according to an actual application scenario.
In this embodiment, first, according to the value of the reference maximum operating power obtained in step S11, a reference power interval including the value of the reference maximum operating power is determined, and the reference power interval is determined as a target power interval, and then according to a corresponding relationship between the reference power interval and the constant power value, a constant power value corresponding to the target power interval is determined.
The segmentation processing in the step changes the maximum value of continuous fluctuation into constant values in segments, guarantees that the calculated maximum working power is basically certain constant values, and the maximum working power variation scene is simple, so that the maximum working power varies in certain constant values.
In this embodiment, after the reference maximum working power of the fuel cell is obtained, the reference maximum working power is not directly used as the actual maximum working power, but the target power interval corresponding to the reference maximum working power and the constant power value corresponding to the target power interval are determined, so that when the reference maximum working powers calculated at different times are located in the same target power interval, the actually selected actual maximum working powers are all the same constant power value, and the fluctuation of the power value of the maximum working power of the fuel cell at different times is reduced.
And S13, determining the constant power value as the actual maximum working power of the fuel cell in a preset time period.
The actual maximum working power of the fuel cell is allowed to change only after lasting for a preset time period delta t, namely when the actual maximum working power of the fuel cell changes, the original power value is maintained for at least delta t time before the power is updated to the latest power, the power change frequency is reduced, the power requirement of the fuel cell can be better met, and the performance and the service life of the fuel cell are guaranteed.
In this embodiment, after the actual maximum operating power is obtained, the actual maximum operating power is used within a preset time period, that is, the calculated actual maximum operating power is continuously used within the preset time period, so that the stability of the actual maximum operating power within the preset time period can be ensured, and the problem that the performance and the service life of the fuel cell are affected due to the fact that the power value of the maximum operating power of the fuel cell fluctuates greatly at different times is solved.
Alternatively, on the basis of the embodiment of the power calculation method, another embodiment of the present invention provides a power calculation apparatus, which, with reference to fig. 3, may include:
a power obtaining module 11 for obtaining a reference maximum operating power of the fuel cell;
a power determining module 12, configured to determine a target power interval corresponding to the reference maximum working power, and obtain a constant power value corresponding to the target power interval;
a power setting module 13 for determining the constant power value as an actual maximum operating power of the fuel cell for a preset time period.
Further, still include:
and the power correction module is used for acquiring the real-time consumed power of the auxiliary machine and determining the sum of the reference maximum working power and the real-time consumed power as the corrected reference maximum working power.
Further, the power harvesting module includes:
the first obtaining submodule is used for obtaining the maximum continuous charging power of the power battery, which is obtained by calculation according to the continuous charging current limit value of the power battery and the total voltage of the power battery;
the second acquisition submodule is used for acquiring the initial maximum working power of the fuel cell;
and the first power setting submodule is used for respectively carrying out filtering operation on the maximum continuous charging power and the initial maximum working power and determining the smaller value of the filtered maximum continuous charging power and the initial maximum working power as the reference maximum working power of the fuel cell.
Further, the power harvesting module includes:
and the second power setting submodule is used for acquiring the allowable charging power of the power battery sent by the power battery and determining the allowable charging power of the power battery as the reference maximum working power.
Further, the power determination module includes:
the third obtaining submodule is used for obtaining at least one reference power interval of the fuel cell and a constant power value corresponding to the reference power interval;
the interval determination submodule is used for determining a reference power interval corresponding to the reference maximum working power and determining the reference power interval as a target power interval;
and the fourth obtaining submodule is used for obtaining the constant power value corresponding to the target power interval.
In this embodiment, after the reference maximum working power of the fuel cell is obtained, the reference maximum working power is not directly used as the actual maximum working power, but the target power interval corresponding to the reference maximum working power and the constant power value corresponding to the target power interval are determined, so that when the reference maximum working powers calculated at different times are located in the same target power interval, the actually selected actual maximum working powers are all the same constant power value, and the fluctuation of the power value of the maximum working power of the fuel cell at different times is reduced.
Further, after the actual maximum working power is obtained, the actual maximum working power is used within a preset time period, that is, the calculated actual maximum working power is continuously used within the preset time period, so that the stability of the actual maximum working power within the preset time period can be ensured, and the problem that the performance and the service life of the fuel cell are influenced due to the fact that the power value of the maximum working power of the fuel cell fluctuates greatly at different moments is solved.
It should be noted that, for the working processes of each module and sub-module in this embodiment, please refer to the corresponding description in the above embodiments, which is not described herein again.
Optionally, on the basis of the embodiments of the power calculation method and apparatus, another embodiment of the present invention provides an electronic device, including: a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to:
acquiring a reference maximum operating power of the fuel cell;
determining a target power interval corresponding to the reference maximum working power, and acquiring a constant power value corresponding to the target power interval;
determining the constant power value as an actual maximum operating power of the fuel cell for a preset time period.
Further, after the obtaining the reference maximum operating power of the fuel cell, the method further includes:
acquiring real-time consumed power of an auxiliary machine;
and determining the sum of the reference maximum working power and the real-time consumed power as the modified reference maximum working power.
Further, obtaining a reference maximum operating power of the fuel cell includes:
acquiring maximum continuous charging power of the power battery calculated according to the continuous charging current limit value of the power battery and the total voltage of the power battery;
acquiring initial maximum working power of the fuel cell;
and respectively carrying out filtering operation on the maximum continuous charging power and the initial maximum working power, and determining the smaller value of the filtered maximum continuous charging power and the initial maximum working power as the reference maximum working power of the fuel cell.
Further, obtaining a reference maximum operating power of the fuel cell includes:
and acquiring the allowable charging power of the power battery sent by the power battery, and determining the allowable charging power of the power battery as the reference maximum working power.
Further, determining a target power interval corresponding to the reference maximum working power, and acquiring a constant power value corresponding to the target power interval, includes:
acquiring at least one reference power interval of the fuel cell and a constant power value corresponding to the reference power interval;
determining a reference power interval corresponding to the reference maximum working power, and determining the reference power interval as a target power interval;
and acquiring a constant power value corresponding to the target power interval.
In this embodiment, after the reference maximum working power of the fuel cell is obtained, the reference maximum working power is not directly used as the actual maximum working power, but the target power interval corresponding to the reference maximum working power and the constant power value corresponding to the target power interval are determined, so that when the reference maximum working powers calculated at different times are located in the same target power interval, the actually selected actual maximum working powers are all the same constant power value, and the fluctuation of the power value of the maximum working power of the fuel cell at different times is reduced.
Further, after the actual maximum working power is obtained, the actual maximum working power is used within a preset time period, that is, the calculated actual maximum working power is continuously used within the preset time period, so that the stability of the actual maximum working power within the preset time period can be ensured, and the problem that the performance and the service life of the fuel cell are influenced due to the fact that the power value of the maximum working power of the fuel cell fluctuates greatly at different moments is solved.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. 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 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 means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a device includes one or more processors (CPUs), memory, and a bus. The device may also include input/output interfaces, network interfaces, 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, computer readable media does not include transitory computer readable media (transmyedia) such as modulated data signals and carrier waves.
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.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It is further 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an 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 article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method of power computation, comprising:
acquiring a reference maximum operating power of the fuel cell;
determining a target power interval corresponding to the reference maximum working power, and acquiring a constant power value corresponding to the target power interval;
determining the constant power value as an actual maximum operating power of the fuel cell for a preset time period.
2. The power calculation method according to claim 1, further comprising, after the obtaining of the reference maximum operating power of the fuel cell:
acquiring real-time consumed power of an auxiliary machine;
and determining the sum of the reference maximum working power and the real-time consumed power as the modified reference maximum working power.
3. The power calculation method of claim 1, wherein obtaining the reference maximum operating power of the fuel cell comprises:
acquiring maximum continuous charging power of the power battery calculated according to the continuous charging current limit value of the power battery and the total voltage of the power battery;
acquiring initial maximum working power of the fuel cell;
and respectively carrying out filtering operation on the maximum continuous charging power and the initial maximum working power, and determining the smaller value of the filtered maximum continuous charging power and the initial maximum working power as the reference maximum working power of the fuel cell.
4. The power calculation method of claim 1, wherein obtaining the reference maximum operating power of the fuel cell comprises:
and acquiring the allowable charging power of the power battery sent by the power battery, and determining the allowable charging power of the power battery as the reference maximum working power.
5. The power calculation method according to claim 1, wherein determining a target power interval corresponding to the reference maximum operating power and obtaining a constant power value corresponding to the target power interval comprises:
acquiring at least one reference power interval of the fuel cell and a constant power value corresponding to the reference power interval;
determining a reference power interval corresponding to the reference maximum working power, and determining the reference power interval as a target power interval;
and acquiring a constant power value corresponding to the target power interval.
6. A power computing device, comprising:
the power acquisition module is used for acquiring the reference maximum working power of the fuel cell;
the power determining module is used for determining a target power interval corresponding to the reference maximum working power and acquiring a constant power value corresponding to the target power interval;
a power setting module to determine the constant power value as an actual maximum operating power of the fuel cell for a preset time period.
7. The power computing apparatus of claim 6, further comprising:
and the power correction module is used for acquiring the real-time consumed power of the auxiliary machine and determining the sum of the reference maximum working power and the real-time consumed power as the corrected reference maximum working power.
8. The power computing apparatus of claim 6, wherein the power harvesting module comprises:
the first obtaining submodule is used for obtaining the maximum continuous charging power of the power battery, which is obtained by calculation according to the continuous charging current limit value of the power battery and the total voltage of the power battery;
the second acquisition submodule is used for acquiring the initial maximum working power of the fuel cell;
and the first power setting submodule is used for respectively carrying out filtering operation on the maximum continuous charging power and the initial maximum working power and determining the smaller value of the filtered maximum continuous charging power and the initial maximum working power as the reference maximum working power of the fuel cell.
9. The power computing apparatus of claim 6, wherein the power harvesting module comprises:
and the second power setting submodule is used for acquiring the allowable charging power of the power battery sent by the power battery and determining the allowable charging power of the power battery as the reference maximum working power.
10. An electronic device, comprising: a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to:
acquiring a reference maximum operating power of the fuel cell;
determining a target power interval corresponding to the reference maximum working power, and acquiring a constant power value corresponding to the target power interval;
determining the constant power value as an actual maximum operating power of the fuel cell for a preset time period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010231986.9A CN111361458B (en) | 2020-03-27 | 2020-03-27 | Power calculation method and device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010231986.9A CN111361458B (en) | 2020-03-27 | 2020-03-27 | Power calculation method and device and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111361458A true CN111361458A (en) | 2020-07-03 |
| CN111361458B CN111361458B (en) | 2022-04-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113511111A (en) * | 2021-09-01 | 2021-10-19 | 潍柴动力股份有限公司 | Fuel cell system control method, apparatus, device and readable storage medium |
| CN114914486A (en) * | 2022-06-01 | 2022-08-16 | 潍柴动力股份有限公司 | Method and device for controlling shutdown purge of fuel cell |
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| CN113511111A (en) * | 2021-09-01 | 2021-10-19 | 潍柴动力股份有限公司 | Fuel cell system control method, apparatus, device and readable storage medium |
| CN113511111B (en) * | 2021-09-01 | 2024-04-16 | 潍柴动力股份有限公司 | Fuel cell system control method, device, apparatus and readable storage medium |
| CN114914486A (en) * | 2022-06-01 | 2022-08-16 | 潍柴动力股份有限公司 | Method and device for controlling shutdown purge of fuel cell |
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| CN111361458B (en) | 2022-04-26 |
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