CN113511111B - Fuel cell system control method, device, apparatus and readable storage medium - Google Patents
Fuel cell system control method, device, apparatus and readable storage medium Download PDFInfo
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- CN113511111B CN113511111B CN202111022967.6A CN202111022967A CN113511111B CN 113511111 B CN113511111 B CN 113511111B CN 202111022967 A CN202111022967 A CN 202111022967A CN 113511111 B CN113511111 B CN 113511111B
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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
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Abstract
The present disclosure provides a method, apparatus, device, and readable storage medium for controlling a fuel cell system, which determine a power demand value of a target vehicle by acquiring operational status information of the target vehicle, determine a target output power corresponding to the fuel cell system according to the power demand value and a plurality of power steps corresponding to a preset fuel cell system, and control the fuel cell system to output the target output power. The power generation efficiency of the fuel cell system is ensured to be in a higher efficiency area, and the waste of fuel resources is avoided. In addition, by adopting the method for reasonably distributing the output power according to the required power of the target vehicle, the electric pile loss is avoided, the service life of the fuel cell is prolonged, and the technical problem of large electric pile loss caused by that each electric pile operates according to the optimal output power is effectively solved.
Description
Technical Field
The present disclosure relates to the technical field of fuel cell engines, and in particular, to a method, an apparatus, a device, and a readable storage medium for controlling a fuel cell system.
Background
The fuel cell has the advantages of energy conservation, high conversion efficiency, zero emission pollution, good performance and the like, so that the fuel cell is increasingly applied to automobile engines. However, the fuel cell engine in the prior art is generally a single-pile engine, the power is generally low, and the large-power driven target vehicles such as heavy trucks, engineering machinery, mining cards and the like cannot be met.
In order to enable the fuel cell engine to drive the high-power driving target vehicle, a mode of parallel power generation of multiple electric stacks is generally adopted in the prior art, each electric stack is controlled to operate according to the optimal output power of the electric stacks, and power is provided for the high-power driving target vehicle.
However, in the process of supplying power to the target vehicle by adopting the method, the fuel cell engine is always more damaged when the fuel cell engine operates according to the optimal output power, and the output power is not matched with the required power of the target vehicle, so that the fuel resource is wasted.
Disclosure of Invention
The disclosure provides a fuel cell system control method, a device, equipment and a readable storage medium, which are used for solving the problems that in the prior art, the loss of a fuel cell engine is large, the output power is not matched with the required power of a target vehicle, and the fuel resource is wasted.
In a first aspect, the present disclosure provides a fuel cell system control method, including:
acquiring running state information of a target vehicle, wherein the running state information comprises the residual electric quantity of a battery and the power of a motor;
determining a power demand value of the target vehicle according to the running state information;
determining a target output power corresponding to the fuel cell system according to the power demand value and a plurality of preset power gears corresponding to the fuel cell system;
and controlling the fuel cell system to output the target output power.
In an optional embodiment, the determining, according to the power requirement value and a plurality of preset power gears corresponding to the fuel cell system, the target output power corresponding to the fuel cell system includes:
calculating absolute values of differences between the power demand value and the plurality of power stages, respectively;
determining two power gears with the absolute value of the difference value smaller than a preset difference value threshold value to obtain two power gears to be set;
and determining the corresponding target output power of the fuel cell system according to the battery residual capacity of the target vehicle and the power gear to be set.
In an alternative embodiment, the determining, according to the remaining battery power of the target vehicle and the power gear to be set, the target output power corresponding to the fuel cell system includes:
if the remaining battery power is within a preset first power range, determining a first power gear to be set, which is smaller than the power demand value, of the two power gears to be set, and taking the first power gear to be set as the target output power;
if the remaining battery power is in a preset second power range, determining a second power gear to be set, which is larger than the power demand value, of the two power gears to be set, and taking the second power gear to be set as the target output power;
wherein the first power range is greater than the second power range.
In an alternative embodiment, the determining, according to the remaining battery power of the target vehicle and the power gear to be set, the target output power corresponding to the fuel cell system includes:
if the residual electric quantity of the battery is between a preset first electric quantity range and a preset second electric quantity range, respectively determining efficiency values corresponding to the two power gears to be set according to a preset corresponding relation of power/efficiency of the fuel battery;
and determining the target output power corresponding to the fuel cell system according to the efficiency value.
In an optional embodiment, the determining, according to the efficiency value, a target output power corresponding to the fuel cell system includes:
and determining the power gear to be set with a large efficiency value in the efficiency values corresponding to the two power gears to be set as the target output power.
In a second aspect, the present disclosure provides a fuel cell system control apparatus including:
the information acquisition module is used for acquiring running state information of the target vehicle, wherein the running state information comprises the residual battery capacity and the motor power;
a determining module for determining a power demand value of the target vehicle according to the running state information;
the judging module is used for determining the target output power corresponding to the fuel cell system according to the power demand value and a plurality of preset power gears corresponding to the fuel cell system;
and the control module is used for controlling the fuel cell system to output the target output power.
In an alternative embodiment, the determining module is specifically configured to:
calculating absolute values of differences between the power demand value and the plurality of power stages, respectively; determining two power gears with the absolute value of the difference value smaller than a preset difference value threshold value to obtain two power gears to be set; and determining the corresponding target output power of the fuel cell system according to the battery residual capacity of the target vehicle and the power gear to be set.
In an alternative embodiment, the determining module is further configured to:
if the remaining battery power is within a preset first power range, determining a first power gear to be set, which is smaller than the power demand value, of the two power gears to be set, and taking the first power gear to be set as the target output power;
if the remaining battery power is in a preset second power range, determining a second power gear to be set, which is larger than the power demand value, of the two power gears to be set, and taking the second power gear to be set as the target output power;
wherein the first power range is greater than the second power range.
In an alternative embodiment, the determining module is further configured to:
if the residual electric quantity of the battery is between a preset first electric quantity range and a preset second electric quantity range, respectively determining efficiency values corresponding to the two power gears to be set according to a preset corresponding relation of power/efficiency of the fuel battery;
and determining the target output power corresponding to the fuel cell system according to the efficiency value.
In an alternative embodiment, the determining module is further configured to:
and determining the power gear to be set with a large efficiency value in the efficiency values corresponding to the two power gears to be set as the target output power.
In a third aspect, the present disclosure provides an electronic device comprising: a memory, a processor;
a memory: a memory for storing the processor-executable instructions;
wherein the processor is configured to invoke the program instructions in the memory to execute the fuel cell system control method according to the first aspect.
In a fourth aspect, the present disclosure provides a computer-readable storage medium having stored therein computer-executable instructions that, when executed by a processor, are configured to implement the fuel cell system control method according to the first aspect.
In a fifth aspect, the present disclosure provides a computer program product comprising a computer program which, when executed by a processor, implements the fuel cell system control method as described in the first aspect.
The method, the device, the equipment and the readable storage medium for controlling the fuel cell system are used for acquiring the running state information of a target vehicle, determining the power requirement value of the target vehicle according to the running state information, determining the target output power corresponding to the fuel cell system according to the power requirement value and a plurality of preset power gears corresponding to the fuel cell system, and controlling the fuel cell system to output the target output power. The power demand of the target vehicle is determined, and the output power of the fuel cell system is reasonably distributed in combination with the whole vehicle condition, so that the power generation efficiency of the fuel cell system is ensured to be in a higher efficiency area, and the waste of fuel resources is avoided. In addition, by adopting the method for reasonably distributing the output power according to the required power of the target vehicle, the loss of the fuel cell engine is avoided, and the service life of the fuel cell is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of a system architecture upon which the present disclosure is based;
fig. 2 is a flow chart of a control method of a fuel cell system according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a control device for a fuel cell system according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the disclosure.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are some embodiments of the present disclosure, but not all embodiments. All other embodiments obtained based on the embodiments in the present disclosure are within the scope of the protection of the present disclosure.
With the development of the age, the application scene of the fuel cell is wider and wider, and particularly, the fuel cell has a great development space in the field of fuel cell automobiles. In order to enable the fuel cell engine to drive the high-power driving target vehicle, a mode of parallel power generation of multiple electric stacks is generally adopted in the prior art, each electric stack is controlled to operate according to the optimal output power of the electric stacks, and power is provided for the high-power driving target vehicle. However, this mode of operation tends to have significant fuel cell engine losses, and the output power does not match the target vehicle demand power, wasting fuel resources.
In order to solve the problems, the inventor finds that the output power of the fuel cell system can be reasonably distributed by determining the required power of the target vehicle and combining the whole vehicle condition, so that the power generation efficiency of the fuel cell system is ensured to be in a higher efficiency area, and the waste of fuel resources is avoided. In addition, by adopting the method for reasonably distributing the output power according to the required power of the target vehicle, the loss of the electric pile is avoided, the service life of the fuel cell is prolonged, and the technical problem of high loss of the fuel cell engine caused by that each electric pile operates according to the optimal output power is effectively solved.
Fig. 1 is a schematic diagram of a system architecture according to the present disclosure, as shown in fig. 1, where the system architecture shown in fig. 1 may specifically include a target vehicle 1, a server 2, and a fuel cell system 3, where a fuel cell system control device is disposed in the server 2.
The target vehicle 1 may specifically be any high-power driving target vehicle of a fuel cell engine that uses multiple stacks to generate power in parallel, including, but not limited to, heavy trucks, engineering machinery, mining trucks, and the like.
The fuel cell system control device may specifically be a hardware device mounted in the vehicle control unit server, and may specifically be configured to obtain running state information of the target vehicle, determine a power demand value of the target vehicle according to the running state information of the target vehicle, and determine a target output power of the fuel cell system according to the power demand value.
The fuel cell system 3 may be specifically a multi-stack parallel fuel cell mounted in a fuel cell engine for supplying driving force to a target vehicle.
Further, the fuel cell system control means is for controlling the fuel cell system 3 to operate in accordance with the target output power.
Example 1
Fig. 2 is a flow chart of a fuel cell system control method according to an embodiment of the present disclosure, and as shown in fig. 2, the fuel cell system control method according to an embodiment of the present disclosure includes:
step 201, obtaining operation state information of a target vehicle, wherein the operation state information comprises the residual electric quantity of a battery and the power of a motor.
The main execution body of the fuel cell system control method provided in the present embodiment is the fuel cell system control device described above, and the fuel cell system control device is mounted in the server of the vehicle control unit.
In the present embodiment, in order to avoid the power loss of the stack caused by the excessive output power of the fuel cell system, it is necessary to control the output power of the fuel cell system to fit the power demand value of the target vehicle. Therefore, in order to determine the power demand value of the target vehicle, the fuel cell system control device may first acquire the operation state information of the target vehicle. Specifically, the operation state information may include a remaining battery level and a motor power.
Step 202, determining a power demand value of the target vehicle according to the running state information.
In the present embodiment, since the fuel cell system is specifically used for performing the power supply operation for the target vehicle, calculation of the power demand value of the target vehicle, which is specifically used for maintaining the normal operation of the target vehicle, can be achieved based on the operation state information of the target vehicle. Specifically, after the fuel cell system control device obtains the running state information of the target vehicle, the calculation of the power demand value may be implemented by any one of power calculation methods according to the battery remaining capacity and the motor power of the target vehicle, which is not limited in the present disclosure.
Step 203, determining a target output power corresponding to the fuel cell system according to the power demand value and a plurality of preset power gears corresponding to the fuel cell system.
In this embodiment, in order to realize the determination of the target output power, a plurality of different power shift stages may be set in advance according to the outputtable power situation of the fuel cell system in practical applications. For example, the plurality of power steps preset for the fuel cell system are 50kW, 60kW, 70kW, 80kW, etc., respectively.
Accordingly, after determining the power value required to drive the target vehicle, the fuel cell system control device may determine, according to the power requirement value, a target output power corresponding to the fuel cell system of the target vehicle among a plurality of power steps preset in the fuel cell system. Specifically, one of the plurality of power steps having the smallest difference from the power demand value may be selected as the target output power. Alternatively, the target output power may be selected according to the actual situation among two power ranges having the smallest difference from the power demand value among the plurality of power ranges, and the present disclosure is not limited thereto.
In the above example, if the power requirement value of the current target vehicle is 75kW, the target vehicle may determine that the target output power corresponding to the fuel cell system of the target vehicle is 70kW or 80kW according to the plurality of power gears.
Step 204, controlling the fuel cell system to output the target output power.
In the present embodiment, after the target output power is determined, the fuel cell system control device controls the fuel cell system to output the target output power in order to operate the fuel cell system at the target output power.
For example, after a heavy truck of a fuel cell engine that generates electricity by using multiple stacks in parallel is started, the fuel cell system control device may automatically obtain the remaining battery power and the motor power of the vehicle, and determine a power value required for driving the heavy truck according to the remaining battery power and the motor power. Then, the fuel cell system control device determines the target output power corresponding to the fuel cell system of the heavy truck from a plurality of preset power gears of the fuel cell system according to the required power value. Finally, the fuel cell system control device controls the fuel cell system of the heavy truck to operate at the target output power.
According to the fuel cell system control method provided by the embodiment, the power demand value of the target vehicle is determined by acquiring the running state information of the target vehicle, the target output power corresponding to the fuel cell system is determined according to the power demand value and a plurality of preset power gears corresponding to the fuel cell system, and the fuel cell system is controlled to output the target output power. The power generation efficiency of the fuel cell system is ensured to be in a higher efficiency area, and the waste of fuel resources is avoided. Moreover, by adopting the method for reasonably distributing the output power according to the required power of the target vehicle, the electric pile loss is avoided, the service life of the fuel cell is prolonged, and the technical problem of large electric pile loss caused by that each electric pile operates according to the optimal output power is effectively solved.
In order to further describe the fuel cell system control method of the present disclosure, based on the first embodiment, step 203 specifically includes: calculating absolute values of differences between the power demand value and the plurality of power stages, respectively; determining two power gears with the absolute value of the difference value smaller than a preset difference value threshold value to obtain two power gears to be set; and determining the corresponding target output power of the fuel cell system according to the battery residual capacity of the target vehicle and the power gear to be set.
In the present embodiment, in order to determine the target output power corresponding to the fuel cell system of the target vehicle, the fuel cell system control device calculates absolute values of differences between the power demand value of the target vehicle and a plurality of power shift values corresponding to the preset fuel cell system, respectively. If the calculated absolute value of the difference is smaller than a preset difference threshold, the gear is the power gear to be set. According to the method, two power gears to be set are finally obtained. The fuel cell system control device determines the target output power corresponding to the fuel cell system of the target vehicle in the two power gears to be set according to the battery residual capacity of the target vehicle and the actual scene.
It should be noted that, among the plurality of power shift positions corresponding to the preset fuel cell system, there is one power shift position with optimal efficiency, and the power shift position with optimal efficiency may be calculated by any one efficiency calculation method, which is not limited in this disclosure. When the power demand value of the target vehicle is near the power range with the optimal efficiency, the power range with the optimal efficiency is preferentially determined as the target output power corresponding to the fuel cell system of the target vehicle.
For example, the preset power steps of the fuel cell system of one heavy truck are respectively 50kW, 60kW, 70kW, 80kW, etc., and the preset difference threshold is 9kW. If the power demand of the heavy truck is 73kW, the fuel cell system control will calculate the absolute value of the difference between 73kW and the power steps of 50kW, 60kW, 70kW, 80kW, etc., respectively. The absolute values of the calculated differences were 23kW, 13kW, 3kW, 7kW, etc., respectively. Wherein 3kW and 7kW are less than the difference value threshold value 9kW that presets, and then its 70kW and 80kW power gear that correspond are to be set up the power gear promptly. And the fuel cell system control device can determine the corresponding target output power of the fuel cell system of the heavy truck in 70kW and 80kW power gears by combining the residual battery power of the heavy truck.
For example, if the 80kW power gear is the power gear with the optimal efficiency of the heavy truck, and the power requirement value of the heavy truck is 73kW, the target output power corresponding to the fuel cell system of the heavy truck is preferentially determined as the 80kW power gear, and the determination is not required to be performed in combination with the remaining battery power.
Through the mode, the target output power is accurately determined, so that the target output power is more attached to the power demand value and the actual scene of the target vehicle, and further the loss of the electric pile and the waste of fuel resources are avoided.
Further, on the basis of the first embodiment, step 203 specifically includes: if the remaining battery power is within a preset first power range, determining a first power gear to be set, which is smaller than the power demand value, of the two power gears to be set, and taking the first power gear to be set as the target output power; if the remaining battery power is in a preset second power range, determining a second power gear to be set, which is larger than the power demand value, of the two power gears to be set, and taking the second power gear to be set as the target output power; wherein the first power range is greater than the second power range.
In this embodiment, in order to make the determined target output power more fit to the power demand value of the target vehicle and the actual scene in which the target vehicle is located, the fuel cell system control device may further determine the target output power according to the battery remaining power range of the target vehicle.
Specifically, if the battery remaining amount of the target vehicle is within the preset first electric amount range, the fuel cell system control device selects a first power range to be set smaller than the power demand value as the target output power. If the remaining battery power of the target vehicle is within the preset second power range, the fuel cell system control device selects a second power range to be set that is larger than the power demand value as the target output power.
It should be noted that, in the present embodiment, the first power range is larger than the second power range.
For example, a first power range preset by a heavy truck is more than 70% of the remaining battery power, and a second power range preset by the heavy truck is less than 50% of the remaining battery power. The two power steps to be set are 80kW and 90kW respectively. The power requirement of the heavy truck was 85kW. If the remaining battery power of the heavy truck is 80% and the remaining battery power is high at this time, the fuel cell system control device may select a lower output power from the two power ranges to be set as the target output power in order to achieve the purpose of saving fuel resources. That is, a gear of 80kW may be determined as the target output power. If the remaining battery power of the heavy truck is 40% and the remaining battery power is low at this time, the fuel cell system control device may select a higher output power from the two power ranges to be set as the target output power in order to enable the heavy truck to operate normally. That is, a gear of 90kW may be determined as the target output power.
By the mode, the actual scene can be better attached, the target output power can be more reasonably determined, the waste of fuel resources is avoided, and the loss of a pile is reduced under the condition that the normal operation of a target vehicle is ensured.
Further, on the basis of the first embodiment, step 203 specifically includes: if the residual electric quantity of the battery is between a preset first electric quantity range and a preset second electric quantity range, respectively determining efficiency values corresponding to the two power gears to be set according to a preset corresponding relation of power/efficiency of the fuel battery; and determining the target output power corresponding to the fuel cell system according to the efficiency value.
In the present embodiment, the method of determining the different output powers according to the battery remaining power range of the target vehicle is similar to that described above. If the battery residual electric quantity of the target vehicle is between a preset first electric quantity range and a preset second electric quantity range, the fuel cell system control device calls a preset corresponding relation of power/efficiency of the fuel cell to inquire, respectively inquires efficiency values corresponding to two power gears to be set, and finally determines the target output power corresponding to the fuel cell system by comparing the values of the efficiency values corresponding to the two power gears to be set.
Specifically, a power gear to be set with a higher efficiency value may be selected as the target output power from the two power gears to be set. On the basis of the first embodiment, the determining the target output power corresponding to the fuel cell system according to the efficiency value includes: and determining the power gear to be set with a large efficiency value in the efficiency values corresponding to the two power gears to be set as the target output power.
In this embodiment, after determining the efficiency values corresponding to the two power levels to be set, the efficiency values corresponding to the two power levels to be set may be compared, and the power level to be set with the higher efficiency value may be determined as the target output power.
For example, if the remaining battery power of the heavy truck is 60%, the fuel cell system control device will call a preset corresponding relation of power/efficiency of the fuel cell to query, and if the efficiency value corresponding to the 80kW gear is greater than the efficiency value corresponding to the 90kW gear, the 80kW gear is finally determined to be the target output power corresponding to the fuel cell system. If the efficiency value corresponding to the 80kW gear is smaller than or equal to the efficiency value corresponding to the 90kW gear, the 90kW gear is finally determined to be the target output power corresponding to the fuel cell system.
According to the fuel cell system control method provided by the embodiment, the power demand value of the target vehicle is determined by acquiring the running state information of the target vehicle, the target output power corresponding to the fuel cell system is determined according to the power demand value and a plurality of power gears corresponding to the preset fuel cell system in combination with an actual scene, and the fuel cell system is controlled to output the target output power. The power generation efficiency of the fuel cell system is ensured to be in a higher efficiency area, and the waste of fuel resources is avoided. Moreover, by adopting the method for reasonably distributing the output power according to the required power of the target vehicle, the loss of the electric pile is avoided, and the service life of the fuel cell is prolonged.
Example two
Fig. 3 is a schematic structural diagram of a fuel cell system control device according to an embodiment of the present disclosure, and as shown in fig. 3, the present disclosure further provides a fuel cell system control device, including:
an information acquisition module 31 for acquiring operation state information of the target vehicle, the operation state information including a remaining battery power and a motor power;
a determining module 32 for determining a power demand value of the target vehicle based on the operating state information;
a determining module 33, configured to determine a target output power corresponding to the fuel cell system according to the power demand value and a preset plurality of power gears corresponding to the fuel cell system;
a control module 34 for controlling the fuel cell system to output the target output power.
In an alternative embodiment, on the basis of the second embodiment, the determining module 33 is specifically configured to:
calculating absolute values of differences between the power demand value and the plurality of power stages, respectively; determining two power gears with the absolute value of the difference value smaller than a preset difference value threshold value to obtain two power gears to be set; and determining the corresponding target output power of the fuel cell system according to the battery residual capacity of the target vehicle and the power gear to be set.
In an alternative embodiment, on the basis of the second embodiment, the determining module 33 is further configured to:
if the remaining battery power is within a preset first power range, determining a first power gear to be set, which is smaller than the power demand value, of the two power gears to be set, and taking the first power gear to be set as the target output power;
if the remaining battery power is in a preset second power range, determining a second power gear to be set, which is larger than the power demand value, of the two power gears to be set, and taking the second power gear to be set as the target output power;
wherein the first power range is greater than the second power range.
In an alternative embodiment, on the basis of the second embodiment, the determining module 33 is further configured to:
if the residual electric quantity of the battery is between a preset first electric quantity range and a preset second electric quantity range, respectively determining efficiency values corresponding to the two power gears to be set according to a preset corresponding relation of power/efficiency of the fuel battery;
and determining the target output power corresponding to the fuel cell system according to the efficiency value.
In an alternative embodiment, on the basis of the second embodiment, the determining module is further configured to:
and determining the power gear to be set with a large efficiency value in the efficiency values corresponding to the two power gears to be set as the target output power.
The fuel cell system control device provided in this embodiment determines a power demand value of a target vehicle by acquiring operation state information of the target vehicle, determines a target output power corresponding to the fuel cell system according to the power demand value and a plurality of power steps corresponding to a preset fuel cell system, and controls the fuel cell system to output the target output power. The power generation efficiency of the fuel cell system is ensured to be in a higher efficiency area, and the waste of fuel resources is avoided. Moreover, by adopting the method for reasonably distributing the output power according to the required power of the target vehicle, the electric pile loss is avoided, the service life of the fuel cell is prolonged, and the technical problem of large electric pile loss caused by that each electric pile operates according to the optimal output power is effectively solved.
Example III
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure, as shown in fig. 4, and the present disclosure further provides an electronic device 400, including: a memory 401, a processor 402;
a memory 401 for storing programs. In particular, the program may include program code including computer-operating instructions. Memory 401 may comprise high-speed RAM memory or may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
A processor 402 for executing a program stored in the memory 401.
Wherein a computer program is stored in the memory 401 and configured to be executed by the processor 402 to implement the fuel cell system control method provided by any one of the embodiments of the present disclosure. The related descriptions and effects corresponding to the steps in the drawings can be understood correspondingly, and are not repeated here.
In this embodiment, the memory 401 and the processor 402 are connected through a bus. The bus may be an industry standard architecture (Industry Standard Architecture, abbreviated ISA) bus, an external device interconnect (Peripheral Component, abbreviated PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, abbreviated EISA) bus, among others. The buses may be classified as address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 4, but not only one bus or one type of bus.
Example IV
The embodiments of the present disclosure provide a readable storage medium having stored thereon computer-executable instructions for implementing the fuel cell system control method provided by any one of the embodiments of the present disclosure.
Embodiments of the present disclosure provide a computer program product comprising a computer program which, when executed by a processor, implements the fuel cell system control method provided by any one of the embodiments of the present disclosure.
In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, or device, or any suitable combination of the preceding. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
Moreover, although operations are depicted in a particular order, this should be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the present disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are example forms of implementing the claims.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present disclosure, and not for limiting the same; although the present disclosure has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present disclosure.
Claims (11)
1. A fuel cell system control method characterized by comprising:
acquiring running state information of a target vehicle, wherein the running state information comprises the residual electric quantity of a battery and the power of a motor;
determining a power demand value of the target vehicle according to the running state information;
determining a target output power corresponding to the fuel cell system according to the power demand value and a plurality of preset power gears corresponding to the fuel cell system;
controlling the fuel cell system to output the target output power;
the determining the target output power corresponding to the fuel cell system according to the power demand value and a plurality of preset power gears corresponding to the fuel cell system comprises the following steps:
calculating absolute values of differences between the power demand value and the plurality of power stages, respectively;
determining two power gears with the absolute value of the difference value smaller than a preset difference value threshold value to obtain two power gears to be set;
and determining the corresponding target output power of the fuel cell system according to the battery residual capacity of the target vehicle and the power gear to be set.
2. The method according to claim 1, wherein the determining the target output power corresponding to the fuel cell system according to the battery remaining power of the target vehicle and the power range to be set includes:
if the remaining battery power is within a preset first power range, determining a first power gear to be set, which is smaller than the power demand value, of the two power gears to be set, and taking the first power gear to be set as the target output power;
if the remaining battery power is in a preset second power range, determining a second power gear to be set, which is larger than the power demand value, of the two power gears to be set, and taking the second power gear to be set as the target output power;
wherein the first power range is greater than the second power range.
3. The method according to claim 2, wherein the determining the target output power corresponding to the fuel cell system according to the battery remaining power of the target vehicle and the power range to be set includes:
if the residual electric quantity of the battery is between a preset first electric quantity range and a preset second electric quantity range, respectively determining efficiency values corresponding to the two power gears to be set according to a preset corresponding relation of power/efficiency of the fuel battery;
and determining the target output power corresponding to the fuel cell system according to the efficiency value.
4. A method according to claim 3, wherein said determining a corresponding target output power of the fuel cell system based on the efficiency value comprises:
and determining the power gear to be set with a large efficiency value in the efficiency values corresponding to the two power gears to be set as the target output power.
5. A fuel cell system control apparatus characterized by comprising:
the information acquisition module is used for acquiring running state information of the target vehicle, wherein the running state information comprises the residual battery capacity and the motor power;
a determining module for determining a power demand value of the target vehicle according to the running state information;
the judging module is used for determining the target output power corresponding to the fuel cell system according to the power demand value and a plurality of preset power gears corresponding to the fuel cell system;
a control module for controlling the fuel cell system to output the target output power;
the judging module is specifically configured to:
calculating absolute values of differences between the power demand value and the plurality of power stages, respectively; determining two power gears with the absolute value of the difference value smaller than a preset difference value threshold value to obtain two power gears to be set; and determining the corresponding target output power of the fuel cell system according to the battery residual capacity of the target vehicle and the power gear to be set.
6. The fuel cell system control apparatus according to claim 5, wherein the determination module is further configured to:
if the remaining battery power is within a preset first power range, determining a first power gear to be set, which is smaller than the power demand value, of the two power gears to be set, and taking the first power gear to be set as the target output power;
if the remaining battery power is in a preset second power range, determining a second power gear to be set, which is larger than the power demand value, of the two power gears to be set, and taking the second power gear to be set as the target output power;
wherein the first power range is greater than the second power range.
7. The fuel cell system control apparatus according to claim 6, wherein the determination module is further configured to:
if the residual electric quantity of the battery is between a preset first electric quantity range and a preset second electric quantity range, respectively determining efficiency values corresponding to the two power gears to be set according to a preset corresponding relation of power/efficiency of the fuel battery;
and determining the target output power corresponding to the fuel cell system according to the efficiency value.
8. The fuel cell system control apparatus according to claim 7, wherein the determination module is further configured to:
and determining the power gear to be set with a large efficiency value in the efficiency values corresponding to the two power gears to be set as the target output power.
9. An electronic device, comprising: a memory, a processor;
a memory: a memory for storing the processor-executable instructions;
wherein the processor is configured to invoke program instructions in the memory to perform the fuel cell system control method of any of claims 1-4.
10. A computer-readable storage medium, wherein computer-executable instructions are stored in the computer-readable storage medium, which when executed by a processor, are configured to implement the fuel cell system control method according to any one of claims 1 to 4.
11. A computer program product, characterized by comprising a computer program which, when executed by a processor, implements the fuel cell system control method according to any one of claims 1-4.
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| CN114407683A (en) * | 2022-02-16 | 2022-04-29 | 三一重机有限公司 | Method, device, equipment, medium and work machine for controlling work machine |
| CN114824379B (en) * | 2022-04-29 | 2023-11-24 | 三一电动车科技有限公司 | Tail drainage control method and device for fuel cell system |
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