Fuel cell vehicle and energy control method, device and storage medium thereof
By determining the energy control mode based on vehicle speed and fuel cell status in fuel cell vehicles and adopting different power request strategies, the problem of balancing power and economy under different operating conditions in existing technologies is solved, the parameters of the fuel cell system are optimized, and the cost of manual adjustment is reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HIGER
- Filing Date
- 2024-01-02
- Publication Date
- 2026-07-21
AI Technical Summary
Existing fuel cell vehicles cannot balance power performance, economy, and battery and fuel cell lifespan under different driving conditions in their overall vehicle energy control strategies, and lack specific power point optimization, which increases the cost of manual adjustment.
By acquiring the vehicle's average speed and the fuel cell's operating status, the target energy control mode is determined, and the SOC uplink and downlink power demand energy request strategy and the SOC deviation energy request strategy are adopted to optimize power control in normal speed, high speed and low speed modes, respectively.
It achieves the simultaneous satisfaction of power and economy requirements under different driving conditions, optimizes the parameters of the fuel cell system, and reduces manual adjustment costs.
Smart Images
Figure CN117885610B_ABST
Abstract
Description
[Technical Field]
[0001] This application relates to the field of new energy vehicle technology, and in particular to a fuel cell vehicle and its energy control method, device and storage medium. [Background Technology]
[0002] In the field of hydrogen fuel cell vehicles, due to the problems of soft output characteristics and slow output response of fuel cells, they generally need to be equipped with power batteries to meet the power requirements of the whole vehicle and provide energy for the start-up of fuel cell auxiliary systems.
[0003] Regarding vehicle energy control strategies, most current hydrogen fuel cell vehicles employ on / off control, while some use power following or fuzzy control strategies. Regardless of the control strategy used, no single strategy can simultaneously address the vehicle's power performance, fuel economy, and battery and fuel cell lifespan under different driving conditions (especially urban and highway conditions), particularly in the currently prevalent systems. Furthermore, manually adjusting the control strategy according to driving conditions, with the increasing popularity of hydrogen fuel cell commercial vehicles, undoubtedly increases labor costs.
[0004] In reality, hydrogen fuel cell system suppliers and hydrogen fuel cell vehicle manufacturers are often not the same company. While hydrogen fuel cells can be systematically optimized at a certain power point by adjusting the hydrogen inlet and outlet pressure, flow rate, and temperature; the air inlet and outlet pressure, flow rate, and temperature; and the cooling circuit flow rate and temperature, if the vehicle manufacturer does not specify the optimal power point, system manufacturers often only consider the hydrogen inlet and outlet pressure, flow rate, and temperature; the air inlet and outlet pressure, flow rate, and temperature; and the cooling circuit flow rate and temperature to achieve the target power, without performing sufficient parameter optimization at one or a few power points, in order to meet calibration costs. [Summary of the Invention]
[0005] This application provides an energy control method, device, equipment, and medium for fuel cell vehicles, aiming to solve the technical problems existing in related technologies.
[0006] In a first aspect, embodiments of this application provide an energy control method for a fuel cell vehicle, including:
[0007] Obtain the average vehicle speed and fuel cell operating status of the vehicle;
[0008] The target energy control mode of the vehicle is determined based on the average vehicle speed and the operating status of the fuel cell, wherein the energy control mode includes: normal speed mode, high speed mode and low speed mode;
[0009] Based on the target energy control mode, a corresponding target power energy request strategy is determined, wherein the power energy request strategy includes the SOC uplink and downlink power demand energy request strategy and the SOC deviation energy request strategy.
[0010] In one embodiment, optionally, determining the target energy control mode currently in which the vehicle is located based on the average vehicle speed and the fuel cell operating state includes:
[0011] In response to the vehicle's average speed being greater than or equal to a first preset value, less than or equal to a second preset value, and lasting for a duration greater than a preset duration, while the fuel cell is in an operating state, it is determined that the vehicle is currently in a normal speed mode, wherein the second preset value is greater than the first preset value.
[0012] In one embodiment, optionally, determining the target energy control mode currently in which the vehicle is located based on the average vehicle speed and the fuel cell operating state includes:
[0013] When the average speed of the vehicle is greater than a second preset value and the duration is greater than a preset duration, and the fuel cell is in operation, it is determined that the vehicle is currently in high-speed mode.
[0014] In one embodiment, optionally, determining the target energy control mode currently in which the vehicle is located based on the average vehicle speed and the fuel cell operating state includes:
[0015] When the average speed of the vehicle is less than a first preset value and the duration is greater than a preset duration, and the fuel cell is in operation, it is determined that the vehicle is currently in low-speed mode.
[0016] In one embodiment, optionally, determining the corresponding target power energy request strategy based on the target energy control mode includes:
[0017] When the vehicle is currently in normal speed mode, the corresponding target power energy request strategy is determined to be the SOC uplink and downlink power demand energy request strategy.
[0018] When the vehicle is currently in high-speed mode, the corresponding target power energy request strategy is determined to be the SOC deviation energy request strategy.
[0019] When the vehicle is currently in low-speed mode, the corresponding target power energy request strategy is determined to be the SOC uplink and downlink power demand energy request strategy, and the requested power is limited to a preset range.
[0020] In one embodiment, optionally, the SOC uplink and downlink power demand energy request strategy includes:
[0021] When the SOC goes up, determine the target uplink SOC interval to which the current SOC belongs;
[0022] Based on the preset correspondence between uplink SOC intervals and requested power points, the target uplink SOC interval corresponding to the target uplink SOC interval is determined.
[0023] The vehicle operation is controlled according to the target SOC uplink power point request;
[0024] When the SOC is downlinking, determine the target downlink SOC range to which the current SOC belongs;
[0025] Based on the preset correspondence between downlink SOC intervals and requested power points, the target downlink SOC requested power point corresponding to the target downlink SOC interval is determined;
[0026] The vehicle operation is controlled according to the downlink power point requested by the target SOC.
[0027] In one embodiment, optionally, the SOC deviation energy request strategy includes:
[0028] Calculate the SOC deviation between the current SOC and the target SOC benchmark value;
[0029] Based on the preset correspondence between the SOC deviation value range and the requested power point, the deviation request power point corresponding to the SOC deviation value is determined;
[0030] The vehicle operation is controlled according to the power point requested based on the deviation.
[0031] Secondly, embodiments of this application provide an energy control device for a fuel cell vehicle, comprising:
[0032] The acquisition module is used to acquire the vehicle's average speed and the fuel cell's operating status;
[0033] The mode determination module is used to determine the target energy control mode of the vehicle based on the average vehicle speed and the fuel cell operating status, wherein the energy control mode includes: normal speed mode, high speed mode and low speed mode;
[0034] The strategy determination module is used to determine the corresponding target power energy request strategy based on the target energy control mode, wherein the power energy request strategy includes the SOC uplink and downlink power demand energy request strategy and the SOC deviation energy request strategy.
[0035] Thirdly, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the energy control method for the fuel cell vehicle described above.
[0036] Fourthly, a computer-readable storage medium is provided, which stores a computer program that, when executed by a processor, implements the steps of the energy control method for the fuel cell vehicle described above.
[0037] In the above-described energy control methods, devices, equipment, and media for fuel cell vehicles, the average vehicle speed and fuel cell operating status are obtained. Based on the average vehicle speed and fuel cell operating status, the target energy control mode of the vehicle is determined, including: normal speed mode, high speed mode, and low speed mode. Based on the target energy control mode, a corresponding target power energy request strategy is determined, including a SOC uplink / downlink power demand energy request strategy and a SOC deviation energy request strategy. In this invention, the vehicle's driving mode is divided into low speed, normal speed, and high speed modes, and different power request strategies are used to meet the actual needs of the vehicle in different modes. This allows for control strategies that adapt to both urban and high-speed driving conditions. Furthermore, the control strategy provides a fixed number of target power points for fuel cell system manufacturers to further optimize. [Attached Image Description]
[0038] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0039] Figure 1 A schematic flowchart of an energy control method for a fuel cell vehicle according to an embodiment of this application is shown.
[0040] Figure 2 A schematic block diagram of an energy control device for a fuel cell vehicle according to an embodiment of this application is shown.
Detailed Implementation Methods
[0041] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0042] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.
[0043] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.
[0044] To address the technical issues in related technologies, such as the lack of a specific optimized power point for fuel cell vehicles, this application proposes an energy control method, device, equipment, and medium for fuel cell vehicles.
[0045] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0046] Please see Figure 1 , Figure 1 A schematic flowchart of an energy control method for a fuel cell vehicle according to an embodiment of this application is shown. This energy control method for a fuel cell vehicle addresses technical problems in related technologies, such as the lack of a specific optimized power point for fuel cell vehicles.
[0047] like Figure 1 As shown, the flow of an energy control method for a fuel cell vehicle according to an embodiment of this application includes:
[0048] Step S101: Obtain the average vehicle speed and fuel cell operating status of the vehicle;
[0049] Step S102: Determine the target energy control mode of the vehicle based on the average vehicle speed and the fuel cell operating status, wherein the energy control mode includes: normal speed mode, high speed mode and low speed mode;
[0050] In one embodiment, optionally, step S102 includes:
[0051] In response to the vehicle's average speed being greater than or equal to a first preset value, less than or equal to a second preset value, and lasting for a duration greater than a preset duration, while the fuel cell is in an operating state, it is determined that the vehicle is currently in a normal speed mode, wherein the second preset value is greater than the first preset value.
[0052] In this embodiment, a first preset value and a second preset value can be preset. Specifically, the first preset value can be 30 km / h, and the second preset value can be 60 km / h. The preset duration can also be set according to needs and actual conditions; for example, the preset duration can be 3 minutes.
[0053] Thus, when the vehicle's average speed is consistently greater than or equal to 30 km / h and less than or equal to 60 km / h for 3 minutes, and the fuel cell is in an operating state (i.e., the fuel cell operation command is 1), the vehicle can be considered to have entered normal speed mode. If either of these two conditions is not met, the vehicle exits normal speed mode. Specifically, if the vehicle's average speed is consistently less than 30 km / h for 3 minutes, or consistently greater than 60 km / h for 3 minutes, or the fuel cell is in a non-operating state (i.e., the fuel cell operation command is 0), the vehicle exits normal speed mode.
[0054] In one embodiment, optionally, step S102 includes:
[0055] When the average speed of the vehicle is greater than a second preset value and the duration is greater than a preset duration, and the fuel cell is in operation, it is determined that the vehicle is currently in high-speed mode.
[0056] In this embodiment, a second preset value can be preset. Specifically, the second preset value can be 60 km / h. The preset duration can also be set according to needs and actual conditions; for example, the preset duration can be 3 minutes.
[0057] Thus, when the vehicle's average speed is greater than 60 km / h for 3 consecutive minutes, and the fuel cell is in an operating state (i.e., the fuel cell operation command is 1), the vehicle can be considered to have entered high-speed mode. If either of these two conditions is not met, the vehicle exits high-speed mode. Specifically, if the vehicle's average speed is less than or equal to 60 km / h for 3 consecutive minutes, or the fuel cell is in a non-operating state (i.e., the fuel cell operation command is 0), the vehicle exits high-speed mode.
[0058] In one embodiment, optionally, determining the target energy control mode currently in which the vehicle is located based on the average vehicle speed and the fuel cell operating state includes:
[0059] When the average speed of the vehicle is less than a first preset value and the duration is greater than a preset duration, and the fuel cell is in operation, it is determined that the vehicle is currently in low-speed mode.
[0060] In this embodiment, a first preset value can be preset. Specifically, the first preset value can be 30 km / h. The preset duration can also be set according to needs and actual conditions; for example, the preset duration can be 3 minutes.
[0061] Thus, when the vehicle's average speed remains below 30 km / h for three consecutive minutes, and the fuel cell is in an operating state (i.e., the fuel cell operation command is 1), the vehicle can be considered to have entered low-speed mode. If either of these two conditions is not met, the vehicle exits low-speed mode. Specifically, if the vehicle's average speed remains below 30 km / h for three consecutive minutes, or if the fuel cell is in a non-operating state (i.e., the fuel cell operation command is 0), the vehicle exits low-speed mode.
[0062] Step S103: Determine the corresponding target power energy request strategy according to the target energy control mode, wherein the power energy request strategy includes the SOC uplink and downlink power demand energy request strategy and the SOC deviation energy request strategy.
[0063] In one embodiment, optionally, step S103 includes:
[0064] When the vehicle is currently in normal speed mode, the corresponding target power energy request strategy is determined to be the SOC uplink and downlink power demand energy request strategy.
[0065] When the vehicle is currently in high-speed mode, the corresponding target power energy request strategy is determined to be the SOC deviation energy request strategy.
[0066] When the vehicle is currently in low-speed mode, the corresponding target power energy request strategy is determined to be the SOC uplink and downlink power demand energy request strategy, and the requested power is limited to a preset range.
[0067] In this embodiment, the vehicle's driving modes are divided into low-speed, normal-speed, and high-speed modes, and different power request strategies are adopted to meet the actual needs of the vehicle in different modes. When the vehicle is in normal-speed mode, the energy request adopts the SOC uplink and downlink power demand energy request strategy to reduce SOC fluctuations and take into account the special situation where the fuel cell power switching is slow and needs to operate at a specific power point for a period of time. When the vehicle is in high-speed mode, the vehicle mainly needs to maintain a high SOC level at all times to prevent large SOC fluctuations caused by rapid power loss. Therefore, a SOC deviation energy request strategy is adopted. At the same time, when the SOC deviation is large, a denser power zone is set to achieve the purpose of timely SOC recovery. When in low-speed mode, the vehicle's power demand is low for a long time. Limiting the power output helps to keep the fuel cell at a high efficiency point and prevents SOC fluctuations.
[0068] In one embodiment, optionally, the SOC uplink and downlink power demand energy request strategy includes:
[0069] When the SOC goes up, determine the target uplink SOC interval to which the current SOC belongs;
[0070] Based on the preset correspondence between uplink SOC intervals and requested power points, the target uplink requested power point corresponding to the target uplink SOC interval is determined; wherein, the preset correspondence between uplink SOC intervals and requested power points can be shown in Table 1. Multiple SOC intervals are set, each SOC interval corresponding to one requested power point, and there is a certain pattern between the SOC intervals and the requested power points. The larger the SOC value, the smaller the corresponding requested power point value.
[0071] The vehicle operation is controlled according to the target SOC uplink power point request;
[0072] When the SOC is downlinking, determine the target downlink SOC range to which the current SOC belongs;
[0073] Based on the preset correspondence between downlink SOC intervals and requested power points, the target downlink SOC requested power point corresponding to the target downlink SOC interval is determined;
[0074] The vehicle operation is controlled according to the downlink power point requested by the target SOC.
[0075] The predefined correspondence between the downlink SOC intervals and the requested power points is shown in Table 1. Multiple SOC intervals are set, each corresponding to a requested power point, and there is a certain pattern between the SOC intervals and the requested power points. The larger the SOC value, the smaller the corresponding requested power point value.
[0076] Table 1
[0077]
[0078] In one embodiment, optionally, the SOC deviation energy request strategy includes:
[0079] Calculate the SOC deviation between the current SOC and the target SOC benchmark value;
[0080] The SOC deviation value refers to the difference between the current SOC and the target SOC benchmark value. Specifically, in this example, the target SOC benchmark value can be 75%.
[0081] Based on the preset correspondence between the SOC deviation value range and the requested power point, the deviation request power point corresponding to the SOC deviation value is determined;
[0082] The vehicle operation is controlled according to the power point requested based on the deviation.
[0083] In one specific embodiment, the correspondence between the preset SOC deviation value range and the requested power point can be as shown in Table 2.
[0084] Table 2
[0085]
[0086] Through the above technical solution, when the vehicle is in normal speed mode, the energy request adopts the SOC uplink and downlink power demand energy request strategy; when the vehicle is in high speed mode, the energy request adopts the SOC deviation energy request strategy; and when the vehicle is in low speed mode, the SOC uplink and downlink power demand energy request strategy is adopted, but the power is limited within a preset range, for example, limited to within 24kW.
[0087] Figure 2 A block diagram of an energy control device for a fuel cell vehicle according to an embodiment of this application is shown.
[0088] like Figure 2 As shown, in a second aspect, embodiments of this application provide an energy control device 20 for a fuel cell vehicle, comprising:
[0089] The acquisition module 21 is used to acquire the average vehicle speed and fuel cell operating status of the vehicle;
[0090] The mode determination module 22 is used to determine the target energy control mode of the vehicle based on the average vehicle speed and the fuel cell operating status, wherein the energy control mode includes: normal speed mode, high speed mode and low speed mode;
[0091] The strategy determination module 23 is used to determine the corresponding target power energy request strategy according to the target energy control mode, wherein the power energy request strategy includes the SOC uplink and downlink power demand energy request strategy and the SOC deviation energy request strategy.
[0092] In one embodiment, optionally, the pattern determination module is used for:
[0093] In response to the vehicle's average speed being greater than or equal to a first preset value, less than or equal to a second preset value, and lasting for a duration greater than a preset duration, while the fuel cell is in an operating state, it is determined that the vehicle is currently in a normal speed mode, wherein the second preset value is greater than the first preset value.
[0094] In one embodiment, optionally, the pattern determination module is used for:
[0095] When the average speed of the vehicle is greater than a second preset value and the duration is greater than a preset duration, and the fuel cell is in operation, it is determined that the vehicle is currently in high-speed mode.
[0096] In one embodiment, optionally, the pattern determination module is used for:
[0097] When the average speed of the vehicle is less than a first preset value and the duration is greater than a preset duration, and the fuel cell is in operation, it is determined that the vehicle is currently in low-speed mode.
[0098] In one embodiment, optionally, the policy determination module is used for:
[0099] When the vehicle is currently in normal speed mode, the corresponding target power energy request strategy is determined to be the SOC uplink and downlink power demand energy request strategy.
[0100] When the vehicle is currently in high-speed mode, the corresponding target power energy request strategy is determined to be the SOC deviation energy request strategy.
[0101] When the vehicle is currently in low-speed mode, the corresponding target power energy request strategy is determined to be the SOC uplink and downlink power demand energy request strategy, and the requested power is limited to a preset range.
[0102] In one embodiment, optionally, the SOC uplink and downlink power demand energy request strategy includes:
[0103] When the SOC goes up, determine the target uplink SOC interval to which the current SOC belongs;
[0104] Based on the preset correspondence between uplink SOC intervals and requested power points, the target uplink SOC interval corresponding to the target uplink SOC interval is determined.
[0105] The vehicle operation is controlled according to the target SOC uplink power point request;
[0106] When the SOC is downlinking, determine the target downlink SOC range to which the current SOC belongs;
[0107] Based on the preset correspondence between downlink SOC intervals and requested power points, the target downlink SOC requested power point corresponding to the target downlink SOC interval is determined;
[0108] The vehicle operation is controlled according to the downlink power point requested by the target SOC.
[0109] In one embodiment, optionally, the SOC deviation energy request strategy includes:
[0110] Calculate the SOC deviation between the current SOC and the target SOC benchmark value;
[0111] Based on the preset correspondence between the SOC deviation value range and the requested power point, the deviation request power point corresponding to the SOC deviation value is determined;
[0112] The vehicle operation is controlled according to the power point requested based on the deviation.
[0113] Specific limitations regarding the energy control device of fuel cell vehicles can be found in the above description of the energy control method for fuel cell vehicles, and will not be repeated here. The various modules in the energy control device of the aforementioned fuel cell vehicle can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.
[0114] In one embodiment, a fuel cell vehicle is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it performs the following steps:
[0115] Obtain the average vehicle speed and fuel cell operating status of the vehicle;
[0116] The target energy control mode of the vehicle is determined based on the average vehicle speed and the operating status of the fuel cell, wherein the energy control mode includes: normal speed mode, high speed mode and low speed mode;
[0117] Based on the target energy control mode, a corresponding target power energy request strategy is determined, wherein the power energy request strategy includes the SOC uplink and downlink power demand energy request strategy and the SOC deviation energy request strategy.
[0118] In one embodiment, optionally, determining the target energy control mode currently in which the vehicle is located based on the average vehicle speed and the fuel cell operating state includes:
[0119] In response to the vehicle's average speed being greater than or equal to a first preset value, less than or equal to a second preset value, and lasting for a duration greater than a preset duration, while the fuel cell is in an operating state, it is determined that the vehicle is currently in a normal speed mode, wherein the second preset value is greater than the first preset value.
[0120] In one embodiment, optionally, determining the target energy control mode currently in which the vehicle is located based on the average vehicle speed and the fuel cell operating state includes:
[0121] When the average speed of the vehicle is greater than a second preset value and the duration is greater than a preset duration, and the fuel cell is in operation, it is determined that the vehicle is currently in high-speed mode.
[0122] In one embodiment, optionally, determining the target energy control mode currently in which the vehicle is located based on the average vehicle speed and the fuel cell operating state includes:
[0123] When the average speed of the vehicle is less than a first preset value and the duration is greater than a preset duration, and the fuel cell is in operation, it is determined that the vehicle is currently in low-speed mode.
[0124] In one embodiment, optionally, determining the corresponding target power energy request strategy based on the target energy control mode includes:
[0125] When the vehicle is currently in normal speed mode, the corresponding target power energy request strategy is determined to be the SOC uplink and downlink power demand energy request strategy.
[0126] When the vehicle is currently in high-speed mode, the corresponding target power energy request strategy is determined to be the SOC deviation energy request strategy.
[0127] When the vehicle is currently in low-speed mode, the corresponding target power energy request strategy is determined to be the SOC uplink and downlink power demand energy request strategy, and the requested power is limited to a preset range.
[0128] In one embodiment, optionally, the SOC uplink and downlink power demand energy request strategy includes:
[0129] When the SOC goes up, determine the target uplink SOC interval to which the current SOC belongs;
[0130] Based on the preset correspondence between uplink SOC intervals and requested power points, the target uplink SOC interval corresponding to the target uplink SOC interval is determined.
[0131] The vehicle operation is controlled according to the target SOC uplink power point request;
[0132] When the SOC is downlinking, determine the target downlink SOC range to which the current SOC belongs;
[0133] Based on the preset correspondence between downlink SOC intervals and requested power points, the target downlink SOC requested power point corresponding to the target downlink SOC interval is determined;
[0134] The vehicle operation is controlled according to the downlink power point requested by the target SOC.
[0135] In one embodiment, optionally, the SOC deviation energy request strategy includes:
[0136] Calculate the SOC deviation between the current SOC and the target SOC benchmark value;
[0137] Based on the preset correspondence between the SOC deviation value range and the requested power point, the deviation request power point corresponding to the SOC deviation value is determined;
[0138] The vehicle operation is controlled according to the power point requested based on the deviation.
[0139] It should be noted that the functions or steps that can be implemented by the computer-readable storage medium or electronic device described above can be referred to the relevant descriptions in the foregoing method embodiments. To avoid repetition, they will not be described one by one here.
[0140] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.
[0141] It should be understood that although the terms "first," "second," etc., may be used to describe the setting units in the embodiments of this application, these setting units should not be limited to these terms. These terms are only used to distinguish the setting units from each other. For example, without departing from the scope of the embodiments of this application, the first setting unit may also be referred to as the second setting unit, and similarly, the second setting unit may also be referred to as the first setting unit.
[0142] Depending on the context, the word "if" as used here can be interpreted as "when," "when," "in response to determination," or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination," "in response to determination," "when detection (of the stated condition or event)," or "in response to detection (of the stated condition or event)."
[0143] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.
[0144] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in a combination of hardware and software functional units.
[0145] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.
[0146] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.
Claims
1. An energy control method for a fuel cell vehicle, characterized in that, include: Obtain the average vehicle speed and fuel cell operating status of the vehicle; The target energy control mode of the vehicle is determined based on the average vehicle speed and the operating status of the fuel cell, wherein the energy control mode includes: normal speed mode, high speed mode and low speed mode; Based on the target energy control mode, a corresponding target power energy request strategy is determined, wherein the power energy request strategy includes the SOC uplink and downlink power demand energy request strategy and the SOC deviation energy request strategy. The step of determining the corresponding target power energy request strategy based on the target energy control mode includes: When the vehicle is currently in normal speed mode, the corresponding target power energy request strategy is determined to be the SOC uplink and downlink power demand energy request strategy. When the vehicle is currently in high-speed mode, the corresponding target power energy request strategy is determined to be the SOC deviation energy request strategy. When the vehicle is currently in low-speed mode, the corresponding target power energy request strategy is determined to be the SOC uplink and downlink power demand energy request strategy, and the requested power is limited to a preset range.
2. The energy control method for a fuel cell vehicle according to claim 1, characterized in that, Determining the target energy control mode of the vehicle based on the average vehicle speed and the fuel cell operating status includes: In response to the vehicle's average speed being greater than or equal to a first preset value, less than or equal to a second preset value, and lasting for a duration greater than a preset duration, while the fuel cell is in an operating state, it is determined that the vehicle is currently in a normal speed mode, wherein the second preset value is greater than the first preset value.
3. The energy control method for a fuel cell vehicle according to claim 1, characterized in that, Determining the target energy control mode of the vehicle based on the average vehicle speed and the fuel cell operating status includes: When the average speed of the vehicle is greater than a second preset value and the duration is greater than a preset duration, and the fuel cell is in operation, it is determined that the vehicle is currently in high-speed mode.
4. The energy control method for a fuel cell vehicle according to claim 1, characterized in that, Determining the target energy control mode of the vehicle based on the average vehicle speed and the fuel cell operating status includes: When the average speed of the vehicle is less than a first preset value and the duration is greater than a preset duration, and the fuel cell is in operation, it is determined that the vehicle is currently in low-speed mode.
5. The energy control method for a fuel cell vehicle according to claim 1, characterized in that, The SOC uplink and downlink power demand energy request strategy includes: When the SOC goes up, determine the target uplink SOC interval to which the current SOC belongs; Based on the preset correspondence between uplink SOC intervals and requested power points, the target uplink SOC interval corresponding to the target uplink SOC interval is determined. The vehicle operation is controlled according to the target SOC uplink power point request; When the SOC is downlinking, determine the target downlink SOC range to which the current SOC belongs; Based on the preset correspondence between downlink SOC intervals and requested power points, the target downlink SOC requested power point corresponding to the target downlink SOC interval is determined; The vehicle operation is controlled according to the downlink power point requested by the target SOC.
6. The energy control method for a fuel cell vehicle according to claim 1, characterized in that, The SOC deviation energy request strategy includes: Calculate the SOC deviation between the current SOC and the target SOC benchmark value; Based on the preset correspondence between the SOC deviation value range and the requested power point, the deviation request power point corresponding to the SOC deviation value is determined; The vehicle operation is controlled according to the power point requested based on the deviation.
7. An energy control device for a fuel cell vehicle, characterized in that, include: The acquisition module is used to acquire the vehicle's average speed and the fuel cell's operating status; The mode determination module is used to determine the target energy control mode of the vehicle based on the average vehicle speed and the fuel cell operating status, wherein the energy control mode includes: normal speed mode, high speed mode and low speed mode; The strategy determination module is used to determine the corresponding target power energy request strategy based on the target energy control mode, wherein the power energy request strategy includes the SOC uplink and downlink power demand energy request strategy and the SOC deviation energy request strategy. The strategy determination module is used for: When the vehicle is currently in normal speed mode, the corresponding target power energy request strategy is determined to be the SOC uplink and downlink power demand energy request strategy. When the vehicle is currently in high-speed mode, the corresponding target power energy request strategy is determined to be the SOC deviation energy request strategy. When the vehicle is currently in low-speed mode, the corresponding target power energy request strategy is determined to be the SOC uplink and downlink power demand energy request strategy, and the requested power is limited to a preset range.
8. A fuel cell vehicle, characterized in that, include: At least one processor; And, a memory communicatively connected to the at least one processor; The memory stores instructions executable by the at least one processor, the instructions being configured to perform the method according to any one of claims 1 to 6.
9. A computer-readable storage medium, characterized in that, The device stores computer-executable instructions for performing the method as described in any one of claims 1 to 6.