Fuel cell power output control method, device, storage medium and electronic equipment

Abstract

The present disclosure relates to a fuel cell power output control method, device, storage medium and electronic device, comprising: obtaining a voltage value of a vehicle voltage platform; comparing the voltage value with a preset voltage range of a vehicle fuel cell, the preset voltage range comprising a preset first voltage range and a second voltage range; the first voltage range is a voltage range in which the fuel cell can output rated power, and the second voltage range is a voltage range in which the output power of the fuel cell system stack is limited; when the voltage value of the voltage platform is within the second voltage range, determining a first target power of the fuel cell by using the chargeable power fed back by the power battery and the initial target power of the fuel cell; comparing the first target power with the maximum loadable power of the fuel cell corresponding to the voltage value of the vehicle voltage platform to determine a second target power and an output power of the fuel cell. The utilization rate of the fuel cell can be improved, thereby improving the cruising range of the vehicle.

Description

Technical Field

[0001] This disclosure relates to the field of fuel cell systems, and more specifically, to a fuel cell power output control method, apparatus, storage medium, and electronic device. Background Technology

[0002] In existing technologies, fuel cell vehicles generate electricity through a chemical reaction of fuel on board, which powers an electric motor. The electric motor then drives various mechanical components within the vehicle to propel it forward. Current fuel cell vehicle architecture uses a combination of fuel cells and power batteries. The vehicle's bus voltage references the battery voltage platform. When the vehicle bus voltage is outside the normal operating voltage range of the fuel cell system, high-voltage components within the fuel cell system report a fault, and the fuel cell system shuts down directly due to undervoltage or overvoltage. However, the fuel cell system still has some power output capability outside its operating voltage range, resulting in low fuel cell utilization. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides a fuel cell power output control method, device, storage medium, and electronic device.

[0004] According to a first aspect of the present disclosure, a fuel cell power output control method is provided, applied to a vehicle, the method comprising:

[0005] Obtain the voltage value of the vehicle voltage platform;

[0006] The voltage value of the voltage platform is compared with the preset voltage range of the vehicle fuel cell. The preset voltage range of the fuel cell includes a preset first voltage range and a preset second voltage range. The first voltage range is the voltage range in which the fuel cell can output rated power, and the second voltage range is the voltage range in which the output power of the fuel cell stack is limited.

[0007] When the voltage value of the voltage platform is within the second voltage range, the first target power of the vehicle's fuel cell is determined by acquiring the rechargeable power fed back by the vehicle's power battery and the initial target power of the vehicle's fuel cell.

[0008] By comparing the first target power of the vehicle's fuel cell with its maximum loadable power, a second target power and the output power of the fuel cell are determined, wherein the maximum loadable power is the maximum loadable power of the fuel cell corresponding to the voltage value of the vehicle's voltage platform. Optionally, before obtaining the voltage value of the vehicle voltage platform, the method further includes:

[0009] Obtain the bus voltage value of the vehicle;

[0010] The maximum loadable power is determined by the bus voltage value, which is used to characterize the bus voltage value under actual operating conditions.

[0011] The maximum loadable power is sent to the vehicle controller to ensure that the output power of the fuel cell is less than or equal to the maximum loadable power when adjusting the output power of the fuel cell.

[0012] Optionally, determining the first target power of the vehicle's fuel cell by acquiring the rechargeable power fed back from the vehicle's power battery and the initial target power of the vehicle's fuel cell includes:

[0013] Obtain the initial target power of the vehicle's fuel cell and the rechargeable power fed back by the vehicle's power battery;

[0014] The rechargeable power fed back by the power battery is compared with the initial target power of the fuel cell, and the minimum value between the initial target power of the fuel cell and the rechargeable power fed back by the power battery of the vehicle is determined as the first target power of the fuel cell of the vehicle.

[0015] Optionally, obtaining the initial target power of the vehicle's fuel cell includes:

[0016] The current state of charge (SOC) of the power battery is obtained through the vehicle's overall controller.

[0017] Based on the correspondence between SOC and the initial target power of the fuel cell, the initial target power of the fuel cell corresponding to the current SOC is determined and used as the initial target power of the fuel cell of the vehicle.

[0018] Optionally, determining the second target power of the vehicle's fuel cell by comparing the first target power of the fuel cell with the maximum loadable power, and determining the output power of the fuel cell, includes:

[0019] The maximum loadable power of the fuel cell at the voltage value of the voltage platform is determined, and the maximum loadable power is used to characterize the maximum loadable power of the fuel cell under actual operating conditions.

[0020] The first target power of the fuel cell is compared with the maximum loadable power, and the minimum value between the first target power and the maximum loadable power is determined as the second target power of the vehicle fuel cell, thereby determining the output power of the fuel cell.

[0021] Optionally, the method further includes:

[0022] When the voltage value of the voltage platform is within the first voltage range, the minimum value is determined by comparing the acquired initial target power of the vehicle fuel cell, the rechargeable power of the power battery, and the maximum loadable power. This minimum value is then determined as the third target power of the fuel cell issued by the vehicle controller, and the output power of the vehicle fuel cell is determined. When the voltage value of the voltage platform is not within the preset voltage range of the vehicle fuel cell, the vehicle controller receives a fuel cell fault report, and the vehicle shuts down due to a fault.

[0023] Optionally, the minimum value obtained by comparing the initial target power of the vehicle fuel cell, the rechargeable power of the power battery, and the maximum loadable power is determined as the third target power of the fuel cell issued by the vehicle controller. Determining the output power of the vehicle fuel cell includes:

[0024] According to the vehicle energy management strategy, the minimum value among the initial target power of the fuel cell, the rechargeable power of the power battery, and the maximum loadable power is determined as the third target power of the fuel cell issued by the vehicle controller.

[0025] The output power of the vehicle fuel cell is determined based on the third target power of the fuel cell.

[0026] According to a second aspect of the present disclosure, a fuel cell power output control device is provided, comprising:

[0027] An acquisition module is used to acquire the voltage value of the vehicle voltage platform;

[0028] The comparison module is used to compare the voltage value of the voltage platform with the preset voltage range of the vehicle fuel cell. The preset voltage range of the fuel cell includes a preset first voltage range and a preset second voltage range. The first voltage range is the voltage range in which the fuel cell can output rated power, and the second voltage range is the voltage range in which the output power of the fuel cell stack is limited.

[0029] The first determining module is used to determine the first target power of the vehicle's fuel cell by acquiring the rechargeable power fed back by the vehicle's power battery and the initial target power of the vehicle's fuel cell when the voltage value of the voltage platform is within the second voltage range.

[0030] The second determining module is used to determine the second target power of the vehicle's fuel cell and the output power of the fuel cell by comparing the first target power of the fuel cell of the vehicle with the maximum loadable power of the fuel cell corresponding to the voltage value of the vehicle's voltage platform.

[0031] According to a third aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements the steps of the fuel cell power output control method provided in the first aspect of the present disclosure.

[0032] According to a fourth aspect of the present disclosure, an electronic device is provided, comprising:

[0033] A memory on which computer programs are stored;

[0034] A processor is configured to execute the computer program in the memory to implement the steps of the fuel cell power output control method provided in the first aspect of this disclosure.

[0035] According to a fifth aspect of the present disclosure, a vehicle is provided, including the electronic equipment of the fourth aspect of the present disclosure.

[0036] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0037] In the above technical solution, the voltage value of the vehicle voltage platform is obtained; the voltage value of the voltage platform is compared with the preset voltage range of the vehicle fuel cell, the preset voltage range of the fuel cell including a preset first voltage range and a preset second voltage range; wherein, the first voltage range is the voltage range in which the fuel cell can output rated power, and the second voltage range is the voltage range in which the output power of the fuel cell stack is limited; when the voltage value of the voltage platform is within the second voltage range, the first target power of the vehicle fuel cell is determined by obtaining the rechargeable power fed back by the vehicle's power battery and the initial target power of the vehicle's fuel cell; the second target power of the vehicle fuel cell and the output power of the fuel cell are determined by comparing the first target power of the vehicle fuel cell with the maximum loadable power, wherein the maximum loadable power is the maximum loadable power of the fuel cell corresponding to the voltage value of the vehicle voltage platform. By employing the above technical solution, when obtaining the voltage value of the vehicle voltage platform, the range of the voltage value of the voltage platform is determined by comparing it with the preset voltage range of the vehicle fuel cell. Based on the range of the voltage value, the fuel cell power strategy is determined. Considering the actual operating conditions, the minimum value is taken by comparing the initial target power of the fuel cell, the rechargeable power of the power battery, and the maximum loadable power of the fuel cell corresponding to the voltage value of the voltage platform. The second target power and output power of the vehicle fuel cell are then adjusted accordingly, which can improve the utilization rate of the fuel cell and thus increase the driving range of the vehicle.

[0038] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0039] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0040] Figure 1 This is a flowchart illustrating a fuel cell power output control method according to an exemplary embodiment.

[0041] Figure 2 This is a flowchart illustrating another fuel cell power output control method according to an exemplary embodiment.

[0042] Figure 3 This is a flowchart illustrating another fuel cell power output control method according to an exemplary embodiment.

[0043] Figure 4 This is a flowchart illustrating another fuel cell power output control method according to an exemplary embodiment.

[0044] Figure 5 This is a flowchart illustrating yet another fuel cell power output control method according to an exemplary embodiment.

[0045] Figure 6 This is a flowchart illustrating yet another fuel cell power output control method according to an exemplary embodiment.

[0046] Figure 7 This is a flowchart illustrating yet another fuel cell power output control method according to an exemplary embodiment.

[0047] Figure 8 This is a block diagram illustrating a fuel cell power output control device according to an exemplary embodiment.

[0048] Figure 9 This is a block diagram illustrating an electronic device 900 according to an exemplary embodiment.

[0049] Figure 10 This is a block diagram illustrating an electronic device 1000 according to an exemplary embodiment. Detailed Implementation

[0050] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0051] It is understood that the terms "first," "second," etc., used in this disclosure are used to describe various types of information, but such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another and do not indicate a particular order or degree of importance.

[0052] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0053] It should be noted that all actions involving the acquisition of signals, information, or data in this disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the location is situated, and with authorization from the owner of the relevant device.

[0054] Figure 1 This is a flowchart illustrating a fuel cell power output control method according to an exemplary embodiment, such as... Figure 1 As shown, this method, applied to a vehicle, which may be a fuel cell vehicle, includes the following steps:

[0055] In step S11, the voltage value of the vehicle voltage platform is obtained.

[0056] In step S12, the voltage value of the voltage platform is compared with the preset voltage range of the vehicle fuel cell. The preset voltage range of the fuel cell includes a preset first voltage range and a preset second voltage range. The first voltage range is the voltage range in which the fuel cell can output rated power, and the second voltage range is the voltage range in which the output power of the fuel cell stack is limited.

[0057] For example, the vehicle voltage platform refers to the overall bus voltage platform of the fuel cell vehicle. A fuel cell vehicle (FCV) is a vehicle that generates electricity through a chemical reaction of onboard fuel to power the entire vehicle. The onboard fuel is typically hydrogen, which undergoes an oxidation-reduction chemical reaction with atmospheric oxygen to produce electricity that drives an electric motor. The electric motor then powers the various mechanical structures within the vehicle, propelling it forward. Currently, the overall architecture of fuel cell vehicles combines a fuel cell and a power battery. In one possible implementation, the fuel cell can be the primary power source, with the power battery serving as an auxiliary power source.

[0058] During vehicle operation, the voltage value of the vehicle's voltage platform is acquired and compared with the preset voltage range of the vehicle's fuel cell. The vehicle's fuel cell can be preset with two voltage ranges, namely the first voltage range and the second voltage range mentioned above.

[0059] When the voltage value is within the first voltage range, the vehicle's fuel cell can output rated power. When the voltage value is within the second voltage range, the output power of the vehicle's fuel cell system is limited. For example, the relationship between engine voltage and fuel cell power is shown in Table 1. The rated output power of the fuel cell system is 100KW, the vehicle's voltage operating range is 350-650V, the fuel cell's operating voltage range is 300-850V, the aforementioned first voltage range of the fuel cell is 400-750V, and the aforementioned second voltage range of the fuel cell is 300-400V and 750-850V. When the voltage value of the vehicle's voltage platform is obtained at any value between 400-750V, the vehicle's fuel cell outputs a rated power of 100KW. When the voltage value of the vehicle's voltage platform is obtained at any value between 300-400V and 750-850V, the output power of the fuel cell is shown in Table 1.

[0060] Table 1 Relationship between engine voltage and power

[0061] Voltage / V 300 350 400 500 600 630 650 700 750 800 850 Power / KW 25 50 100 100 100 100 100 100 100 50 25

[0062] It is understood that the voltage and power data shown in Table 1 are exemplary, and the voltage and power data may be the same or different for different types of fuel cell vehicles.

[0063] In step S13, when the voltage value of the voltage platform is within the second voltage range, the first target power of the vehicle's fuel cell is determined by acquiring the rechargeable power fed back by the vehicle's power battery and the initial target power of the vehicle's fuel cell.

[0064] For example, during vehicle operation, when the voltage value of the vehicle's voltage platform falls within the second voltage range, the initial target power of the vehicle's fuel cell is obtained. This initial target power can be compared with the rechargeable power fed back by the vehicle's power battery to obtain the minimum value between the two, which is then used as the first target power of the vehicle's fuel cell. The initial target power of the fuel cell can be determined by the current nuclear charge (also known as state of charge, SOC) of the power battery, thereby determining the first target power of the vehicle's fuel cell system.

[0065] In step S14, by comparing the first target power of the vehicle's fuel cell with the maximum loadable power, the second target power of the vehicle's fuel cell and the output power of the fuel cell are determined. The maximum loadable power is the maximum loadable power of the fuel cell corresponding to the voltage value of the vehicle's voltage platform.

[0066] For example, the maximum loadable power of the fuel cell under actual operating conditions can be determined, and the first target power of the fuel cell can be compared with the maximum loadable power of the fuel cell under the voltage value of the voltage platform and the minimum value can be taken. The minimum value can be determined as the second target power and output power of the fuel cell of the vehicle. The maximum loadable power is the maximum loadable power of the fuel cell corresponding to the voltage value of the vehicle voltage platform.

[0067] Through the above technical solution, when obtaining the voltage value of the vehicle voltage platform, the voltage range of the voltage platform is determined by comparing it with the preset voltage range of the vehicle fuel cell. Based on the voltage range, the fuel cell power strategy is determined. Considering the actual operating conditions, the minimum value is compared between the initial target power of the fuel cell, the rechargeable power of the power battery, and the maximum loadable power of the fuel cell corresponding to the voltage value of the voltage platform. The second target power and output power of the vehicle fuel cell are adjusted accordingly, thereby improving the utilization rate of the fuel cell and increasing the driving range of the vehicle.

[0068] Figure 2 This is a flowchart illustrating another fuel cell power output control method according to an exemplary embodiment, such as... Figure 2 As shown, before step S11, the following steps are also included:

[0069] In step S15, the bus voltage value of the vehicle is obtained.

[0070] In step S16, the maximum loadable power is determined by the bus voltage value, which is used to characterize the bus voltage value under actual operating conditions.

[0071] For example, the vehicle's fuel cell system can detect and acquire the vehicle's bus voltage value in real time. Based on the acquired bus voltage value, and considering actual operating conditions, the maximum loadable power of the vehicle's fuel cell can be calculated. For instance, when the vehicle's bus voltage value is acquired, the voltage value at the maximum output power of the vehicle's fuel cell is used as the output power at the vehicle's bus voltage value, and this output power considering actual operating conditions is used as the maximum loadable power.

[0072] In step S17, the maximum loadable power is sent to the vehicle controller of the vehicle to make the output power of the fuel cell less than or equal to the maximum loadable power when adjusting the output power of the fuel cell.

[0073] For example, the maximum loadable power of the vehicle fuel cell is obtained and sent to the vehicle controller (VCU) via the vehicle's controller local area network (CAN) bus for recording. When adjusting the output power of the vehicle's fuel cell, it is ensured that the output power of the vehicle's fuel cell is less than or equal to the maximum loadable power of the fuel cell.

[0074] For example, if the adjusted output power of the vehicle's fuel cell is 50KW and the maximum loadable power of the fuel cell calculated under the vehicle's bus voltage is 50KW, then the output power of the vehicle's fuel cell can be 50KW. Further comparison with the first target power of the fuel cell is made to determine the second target power and output power of the vehicle's fuel cell.

[0075] Figure 3 This is a flowchart illustrating another fuel cell power output control method according to an exemplary embodiment, such as... Figure 3 As shown, step S13 includes the following steps:

[0076] In step S131, the initial target power of the fuel cell of the vehicle and the rechargeable power fed back by the power battery of the vehicle are obtained.

[0077] In step S132, the rechargeable power fed back by the power battery is compared with the initial target power of the fuel cell, and the minimum value between the initial target power of the fuel cell and the rechargeable power fed back by the power battery of the vehicle is determined as the first target power of the fuel cell of the vehicle.

[0078] For example, when the vehicle is in operation, the current state of charge (SOC) of the power battery is obtained through the vehicle controller, and the initial target power of the fuel cell is determined according to the correspondence between the SOC and the initial target power of the fuel cell. The initial target power of the fuel cell is compared with the rechargeable power of the power battery of the vehicle and the minimum value is taken as the first target power of the fuel cell of the vehicle.

[0079] In one implementation, the initial target power corresponding to each SOC range can be pre-calculated and compared with the rechargeable power of the power battery according to the above strategy, and the minimum value of the two can be taken to determine the first target power of the fuel cell corresponding to each SOC range. A SOC adjustment vehicle energy strategy table is generated, so that after the state of charge of the power battery is determined, the corresponding first target power of the fuel cell system can be determined by querying the table.

[0080] For example, as shown in Table 2, when the voltage value of the vehicle voltage platform is obtained as any value between 300-400V and 750-850V, the initial target power of the fuel cell is obtained by querying the state of charge (SOC) table of the power battery. Combined with the current actual working conditions of the vehicle, the initial target power of the fuel cell is compared with the rechargeable power of the power battery and the loadable power of the fuel cell, and the minimum value is taken to determine the first target power value of the fuel cell.

[0081] Table 2 SOC Adjustment Strategy for Vehicle Energy

[0082]

[0083] Figure 4 This is a flowchart illustrating another fuel cell power output control method according to an exemplary embodiment, such as... Figure 4 As shown, step S131 includes the following steps:

[0084] In step S1311, the current state of charge (SOC) of the power battery is obtained through the vehicle controller of the vehicle.

[0085] In step S1312, the initial target power of the fuel cell corresponding to the current SOC is determined according to the correspondence between SOC and the initial target power of the fuel cell, and is used as the initial target power of the fuel cell of the vehicle.

[0086] For example, the table of the correspondence between the initial target power of the fuel cell and the SOC of the vehicle is a pre-prepared table based on past experience. When the vehicle controller obtains the nuclear charge of the power battery, it determines the initial target power corresponding to the current SOC by combining the correspondence between the SOC and the initial target power of the fuel cell, and uses it as the initial target power of the fuel cell of the vehicle.

[0087] Figure 5 This is a flowchart illustrating yet another fuel cell power output control method according to an exemplary embodiment, such as... Figure 5 As shown, step S14 includes:

[0088] In step S141, the maximum loadable power of the fuel cell at the voltage value of the voltage platform is determined. The maximum loadable power is used to characterize the maximum loadable power of the fuel cell under actual operating conditions.

[0089] In step S142, the first target power of the fuel cell is compared with the maximum loadable power, and the minimum value between the first target power of the fuel cell and the maximum loadable power is determined as the second target power of the vehicle fuel cell, thereby determining the output power of the fuel cell.

[0090] For example, when the maximum output power of the vehicle's fuel cell at the voltage value of the voltage platform is 50KW, the target power of the fuel cell of 30KW is compared with the maximum loadable power of the vehicle's fuel cell at the voltage platform considering the actual operating conditions of 50KW, and the minimum value is taken as the second target power of the fuel cell, and the output power of the vehicle's fuel cell is determined to be 30KW.

[0091] Figure 6 This is a flowchart illustrating yet another fuel cell power output control method according to an exemplary embodiment, such as... Figure 6 As shown, the method also includes the following steps:

[0092] In step S18, when the voltage value of the voltage platform is within the first voltage range, the minimum value is obtained by comparing the initial target power of the vehicle fuel cell, the rechargeable power of the power battery, and the maximum loadable power. This minimum value is then determined as the third target power of the fuel cell issued by the vehicle controller, and the output power of the vehicle fuel cell is determined.

[0093] For example, based on the vehicle energy management strategy and considering actual operating conditions, the vehicle can take the minimum value among the initial target power of the fuel cell, the rechargeable power of the power battery, and the maximum loadable power of the fuel cell to determine the third target power issued by the vehicle controller, and use the third target power issued by the vehicle controller as the output power of the vehicle fuel cell.

[0094] In step S19, when the voltage value of the voltage platform is not within the preset voltage range of the vehicle's fuel cell, the vehicle controller receives the fuel cell fault report and the vehicle shuts down due to the fault.

[0095] For example, when the voltage value of the voltage platform is not within the preset voltage range of the vehicle's fuel cell, the vehicle controller receives the fuel cell fault information and the vehicle shuts down due to the fault. For instance, when the voltage value of the vehicle's voltage platform is lower than 300V or higher than 850V, it exceeds the operating voltage range of the fuel cell, the vehicle controller receives the fuel cell fault information, and the vehicle shuts down due to the fault.

[0096] Figure 7 This is a flowchart illustrating yet another fuel cell power output control method according to an exemplary embodiment, such as... Figure 7 As shown, step S18 may include the following steps:

[0097] In step S181, according to the vehicle energy management strategy, the minimum value among the initial target power of the fuel cell, the rechargeable power of the power battery, and the maximum loadable power is determined as the third target power of the fuel cell issued by the vehicle controller.

[0098] In step S182, the output power of the vehicle fuel cell is determined based on the third target power of the fuel cell.

[0099] For example, when the voltage of the vehicle's voltage platform is within the first voltage range, based on the vehicle's overall energy management strategy and considering actual operating conditions, the initial target power of the fuel cell, the rechargeable power of the power battery, and the maximum loadable power are compared. The minimum value among the three is taken as the third target power of the fuel cell issued by the vehicle controller, and the third target power of the fuel cell issued by the vehicle controller is taken as the output power of the vehicle's fuel cell. For example, the loadable power of the vehicle's fuel cell is 100KW, and the preset first voltage range of the fuel cell is 400-700 kW. Between 50V and 400-750V, the initial target power of the vehicle's fuel cell, the rechargeable power of the power battery, and the maximum loadable power of the vehicle's fuel cell under actual operating conditions are compared. When the initial target power of the vehicle's fuel cell is 81KW and the rechargeable power of the power battery is 85KW, the minimum value among 100KW, 85KW, and 81KW is taken as the third target power of the fuel cell issued by the vehicle controller. Therefore, the third target power of the fuel cell issued by the vehicle controller is 81KW, thus determining the output power of the fuel cell to be 81KW.

[0100] The above scheme, upon obtaining the voltage value of the vehicle voltage platform, compares it with the preset voltage range of the vehicle fuel cell to determine the voltage range of the platform. Based on this range, the fuel cell power strategy is determined. When the voltage range meets the range within which the system can output rated power, the vehicle operates according to the original energy management strategy under normal operating conditions. When the voltage range is outside the range within which the system can output rated power, the output power of the vehicle fuel cell is further adjusted based on the first target power of the fuel cell and the maximum loadable power of the fuel cell corresponding to the voltage value of the voltage platform under actual operating conditions. This improves the utilization rate of the fuel cell and increases the vehicle's driving range during operation. Figure 8 This is a block diagram illustrating a fuel cell power output control device according to an exemplary embodiment, such as... Figure 5 As shown, the fuel cell power output control device 800 includes an acquisition module 801, a comparison module 802, a first determination module 803, and a second determination module 804.

[0101] The acquisition module 801 is used to acquire the voltage value of the vehicle voltage platform;

[0102] The comparison module 802 is used to compare the voltage value of the voltage platform with the preset voltage range of the vehicle fuel cell. The preset voltage range of the fuel cell includes a preset first voltage range and a preset second voltage range. The first voltage range is the voltage range in which the fuel cell can output rated power, and the second voltage range is the voltage range in which the output power of the fuel cell stack is limited.

[0103] The first determining module 803 is used to determine the first target power of the vehicle's fuel cell by acquiring the rechargeable power fed back by the vehicle's power battery and the initial target power of the vehicle's fuel cell when the voltage value of the voltage platform is within the second voltage range.

[0104] The second determining module 804 is used to determine the second target power of the vehicle's fuel cell by comparing the first target power of the fuel cell of the vehicle with the maximum loadable power of the fuel cell corresponding to the voltage value of the vehicle's voltage platform, and to determine the output power of the fuel cell.

[0105] Optionally, the fuel cell power output control device 800 further includes:

[0106] Bus voltage acquisition module, used to acquire the bus voltage value of the vehicle;

[0107] The maximum power determination module is used to determine the maximum loadable power through the bus voltage value, which is used to characterize the bus voltage value under actual operating conditions.

[0108] The transmitting module is used to transmit the maximum loadable power to the vehicle controller of the vehicle, and to make the output power of the fuel cell less than or equal to the maximum loadable power when adjusting the output power of the fuel cell.

[0109] Optionally, the first determining module 803 includes:

[0110] The acquisition submodule is used to acquire the initial target power of the vehicle's fuel cell and the rechargeable power fed back by the vehicle's power battery.

[0111] The determination submodule is used to compare the rechargeable power fed back by the power battery with the initial target power of the fuel cell, and determine the minimum value between the initial target power of the fuel cell and the rechargeable power fed back by the power battery of the vehicle, which is taken as the first target power of the fuel cell of the vehicle.

[0112] Optionally, the acquisition submodule includes:

[0113] The SOC acquisition submodule is used to acquire the current SOC of the power battery through the vehicle controller.

[0114] The target power determination submodule is used to determine the initial target power of the fuel cell corresponding to the current SOC based on the correspondence between SOC and the initial target power of the fuel cell, and use it as the initial target power of the fuel cell for the vehicle.

[0115] Optionally, the second determining module 804 includes:

[0116] The maximum loadable power determination submodule is used to determine the maximum loadable power of the fuel cell under the voltage value of the voltage platform. The maximum loadable power is used to characterize the maximum loadable power of the fuel cell under actual operating conditions.

[0117] The output power determination submodule is used to compare the first target power of the fuel cell with the maximum loadable power, determine the minimum value between the first target power of the fuel cell and the maximum loadable power as the second target power of the vehicle fuel cell, and determine the output power of the fuel cell.

[0118] Optionally, the fuel cell power output control device 800 may further include:

[0119] The output power determination module is used to determine the third target power of the fuel cell issued by the vehicle controller when the voltage value of the voltage platform is within the first voltage range. This is done by comparing the minimum value obtained from the initial target power of the vehicle fuel cell, the rechargeable power of the power battery, and the maximum loadable power. The shutdown module is used to shut down the vehicle when the voltage value of the voltage platform is not within the preset voltage range of the vehicle fuel cell, upon receiving a fuel cell fault report from the vehicle controller.

[0120] Optionally, the output power determination module includes:

[0121] The first determining submodule is used to determine the third target power of the fuel cell issued by the vehicle controller by taking the minimum value among the initial target power of the fuel cell, the rechargeable power of the power battery, and the maximum loadable power, according to the vehicle energy management strategy.

[0122] The second determining submodule is used to determine the output power of the vehicle fuel cell based on the third target power of the fuel cell.

[0123] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0124] Figure 9 This is a block diagram illustrating an electronic device 900 according to an exemplary embodiment. For example... Figure 9 As shown, the electronic device 900 may include a processor 901 and a memory 902. The electronic device 900 may also include one or more of a multimedia component 903, an input / output (I / O) interface 904, and a communication component 905.

[0125] The processor 901 controls the overall operation of the electronic device 900 to complete all or part of the steps in the aforementioned fuel cell power output control method. The memory 902 stores various types of data to support the operation of the electronic device 900. This data may include, for example, instructions for any application or method operating on the electronic device 900, and application-related data such as contact data, sent and received messages, pictures, audio, video, etc. The memory 902 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. Multimedia component 903 may include a screen and an audio component. The screen may be, for example, a touchscreen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in memory 902 or transmitted via communication component 905. The audio component also includes at least one speaker for outputting audio signals. I / O interface 904 provides an interface between processor 901 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual or physical buttons. Communication component 905 is used for wired or wireless communication between the electronic device 900 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IoT, eMTC, or other 5G technologies, or combinations thereof, is not limited here. Therefore, the corresponding communication component 905 may include: a Wi-Fi module, a Bluetooth module, an NFC module, etc.

[0126] In an exemplary embodiment, the electronic device 900 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to execute the fuel cell power output control method described above.

[0127] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, which, when executed by a processor, implement the steps of the fuel cell power output control method described above. For example, the computer-readable storage medium may be the memory 902 including program instructions, which may be executed by the processor 901 of the electronic device 900 to complete the fuel cell power output control method described above.

[0128] Figure 10 This is a block diagram illustrating an electronic device 1000 according to an exemplary embodiment. For example, the electronic device 1000 may be provided as a server. (Refer to...) Figure 10 The electronic device 1000 includes a processor 1022, which may be one or more, and a memory 1032 for storing computer programs executable by the processor 1022. The computer program stored in the memory 1032 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processor 1022 can be used to execute the computer program to perform the aforementioned fuel cell power output control method.

[0129] Additionally, the electronic device 1000 may also include a power supply component 1026 and a communication component 1050. The power supply component 1026 can be used to perform power management of the electronic device 1000, and the communication component 1050 can be used to implement communication of the electronic device 1000, such as wired or wireless communication. Furthermore, the electronic device 1000 may also include an input / output (I / O) interface 1058. The electronic device 1000 can operate on an operating system stored in the memory 1032.

[0130] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, which, when executed by a processor, implement the steps of the fuel cell power output control method described above. For example, the non-transitory computer-readable storage medium may be the memory 1032 including program instructions, which may be executed by the processor 1022 of the electronic device 1000 to complete the fuel cell power output control method described above.

[0131] In another exemplary embodiment, a computer program product is also provided, comprising a computer program executable by a programmable device, the computer program having a code portion for performing the above-described fuel cell power output control method when executed by the programmable device.

[0132] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0133] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0134] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A method for controlling the power output of a fuel cell, characterized in that, Applied to vehicles, the method includes: Obtain the voltage value of the vehicle voltage platform; The voltage value of the voltage platform is compared with the preset voltage range of the vehicle fuel cell. The preset voltage range of the fuel cell includes a preset first voltage range and a preset second voltage range. The first voltage range is the voltage range in which the fuel cell can output rated power, and the second voltage range is the voltage range in which the output power of the fuel cell stack is limited. When the voltage value of the voltage platform is within the second voltage range, the first target power of the vehicle's fuel cell is determined by acquiring the rechargeable power fed back by the vehicle's power battery and the initial target power of the vehicle's fuel cell. By comparing the first target power of the vehicle's fuel cell with the maximum loadable power, the second target power of the vehicle's fuel cell and the output power of the fuel cell are determined. The maximum loadable power is the maximum loadable power of the fuel cell corresponding to the voltage value of the vehicle's voltage platform.

2. The method according to claim 1, characterized in that, Before obtaining the voltage value of the vehicle voltage platform, the method further includes: Obtain the bus voltage value of the vehicle; The maximum loadable power is determined by the bus voltage value, which is used to characterize the bus voltage value under actual operating conditions. The maximum loadable power is sent to the vehicle controller to ensure that the output power of the fuel cell is less than or equal to the maximum loadable power when adjusting the output power of the fuel cell.

3. The method according to claim 1, characterized in that, The step of determining the first target power of the vehicle's fuel cell by acquiring the rechargeable power fed back from the vehicle's power battery and the initial target power of the vehicle's fuel cell includes: Obtain the initial target power of the vehicle's fuel cell and the rechargeable power fed back by the vehicle's power battery; The rechargeable power fed back by the power battery is compared with the initial target power of the fuel cell, and the minimum value between the initial target power of the fuel cell and the rechargeable power fed back by the power battery of the vehicle is determined as the first target power of the fuel cell of the vehicle.

4. The method according to claim 3, characterized in that, The step of obtaining the initial target power of the vehicle's fuel cell includes: The current state of charge (SOC) of the power battery is obtained through the vehicle's overall controller. Based on the correspondence between SOC and the initial target power of the fuel cell, the initial target power of the fuel cell corresponding to the current SOC is determined and used as the initial target power of the fuel cell of the vehicle.

5. The method according to claim 1, characterized in that, The step of determining the second target power of the vehicle's fuel cell and the output power of the fuel cell by comparing the first target power of the fuel cell with the maximum loadable power includes: The maximum loadable power of the fuel cell at the voltage value of the voltage platform is determined, and the maximum loadable power is used to characterize the maximum loadable power of the fuel cell under actual operating conditions. The first target power of the fuel cell is compared with the maximum loadable power, and the minimum value between the first target power and the maximum loadable power is determined as the second target power of the vehicle fuel cell, thereby determining the output power of the fuel cell.

6. The method according to claim 1, characterized in that, The method further includes: When the voltage value of the voltage platform is within the first voltage range, the minimum value obtained by comparing the initial target power of the vehicle fuel cell, the rechargeable power of the power battery, and the maximum loadable power is determined as the third target power of the fuel cell issued by the vehicle controller, and the output power of the vehicle fuel cell is determined; when the voltage value of the voltage platform is not within the preset voltage range of the vehicle fuel cell, the vehicle controller receives the fuel cell fault information, and the vehicle stops due to fault.

7. A fuel cell power output control device, characterized in that, include: The acquisition module is used to acquire the voltage value of the vehicle voltage platform; The comparison module is used to compare the voltage value of the voltage platform with the preset voltage range of the vehicle fuel cell. The preset voltage range of the fuel cell includes a preset first voltage range and a preset second voltage range. The first voltage range is the voltage range in which the fuel cell can output rated power, and the second voltage range is the voltage range in which the output power of the fuel cell stack is limited. The first determining module is used to determine the first target power of the vehicle's fuel cell by acquiring the rechargeable power fed back by the vehicle's power battery and the initial target power of the vehicle's fuel cell when the voltage value of the voltage platform is within the second voltage range. The second determining module is used to determine the second target power of the vehicle's fuel cell and the output power of the fuel cell by comparing the first target power of the fuel cell of the vehicle with the maximum loadable power, wherein the maximum loadable power is the maximum loadable power of the fuel cell corresponding to the voltage value of the vehicle's voltage platform.

8. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the program implements the steps of the method described in any one of claims 1-6.

9. An electronic device, characterized in that, include: A memory on which computer programs are stored; A processor for executing the computer program in the memory to implement the steps of the method according to any one of claims 1-6.

10. A vehicle, characterized in that, Includes the electronic device as described in claim 9.

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