Fuel cell automobile, control method and device thereof and controller

Abstract

The invention discloses a fuel cell automobile and a control method and device thereof and a controller, the fuel cell automobile comprises a fuel cell and a power battery, and the control method of the fuel cell automobile comprises the steps that when the fuel cell automobile is in an idling working condition, state information of the fuel cell automobile and the opening degree of an accelerator pedal are obtained; and when the state information meets the preset condition and the opening degree of the accelerator pedal is larger than the first preset opening degree, the fuel cell is controlled to charge the power cell. According to the control method of the fuel cell automobile, the fuel cell is controlled to charge the power battery according to the state information of the fuel cell automobile and the opening degree of the accelerator pedal, additional hardware does not need to be added, the control complexity of the fuel cell automobile can be reduced, and the production and manufacturing cost of the automobile can be saved.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cell vehicles, and in particular to a control method for a fuel cell vehicle, a control device for a fuel cell vehicle, a controller and a fuel cell vehicle. Background Art

[0002] Fuel cell vehicles are usually equipped with a set of power batteries to store electricity, which are used during the fuel cell startup phase and low-speed driving phase. When the power battery is low, the power battery can also be charged by the fuel cell. At the same time, the power battery can also recover the kinetic energy generated when the vehicle decelerates and brakes. Under certain special conditions, such as when the driver wants to park for a long time, in order to avoid the risk of power battery failure, the power battery SOC (State of Charge) needs to be maintained at a higher state, or the driver wants to drive in pure electric mode, then the power battery needs to be actively charged. In the related art, an additional set of wiring harnesses and physical buttons are generally provided as switches for charging the power battery with fuel cells. However, this method will increase the complexity and production cost of the system. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art to at least some extent. To this end, the present invention aims to provide a fuel cell vehicle and a control method, device and controller thereof to reduce the complexity of fuel cell vehicle control and save development costs.

[0004] To achieve the above-mentioned purpose, the first aspect of the present invention proposes a control method for a fuel cell vehicle, wherein the fuel cell vehicle includes a fuel cell and a power battery, and the method includes: when the fuel cell vehicle is in an idle condition, obtaining status information and an accelerator pedal opening of the fuel cell vehicle; when the status information meets a preset condition and the accelerator pedal opening is greater than a first preset opening, controlling the fuel cell to charge the power battery.

[0005] In addition, the control method of the fuel cell vehicle according to the embodiment of the present invention may also have the following additional technical features:

[0006] According to one embodiment of the present invention, the status information includes parking status information and a state of charge value of the power battery; wherein, if the parking status information satisfies a preset parking condition and the state of charge value is less than a first preset state of charge threshold, it is determined that the status information satisfies the preset condition.

[0007] According to one embodiment of the present invention, after controlling the fuel cell to charge the power battery, the method further includes: controlling the fuel cell to stop charging the power battery when any of the following conditions is met: the parking status information does not meet the preset parking condition, the accelerator pedal opening is not greater than a second preset opening, and the state of charge value is not lower than a second preset state of charge threshold; wherein the second preset opening is less than the first preset opening, and the second preset state of charge threshold is greater than or equal to the first preset state of charge threshold.

[0008] According to one embodiment of the present invention, the parking status information includes: vehicle power switch status, gear status and vehicle speed; wherein, if the vehicle power switch status is in the on state, the gear status is in the parking gear, and the vehicle speed is 0, then it is determined that the parking status information meets the preset parking condition.

[0009] According to an embodiment of the present invention, the first preset state of charge threshold and the second preset state of charge threshold are between 85% and 95%, and the first preset opening and the second preset opening are between 0% and 10%.

[0010] To achieve the above-mentioned purpose, the second embodiment of the present invention proposes a control device for a fuel cell vehicle, wherein the fuel cell vehicle comprises a fuel cell and a power battery, and the device comprises: an acquisition module and a first control module. The acquisition module is used to acquire the state information and accelerator pedal opening of the fuel cell vehicle when the fuel cell vehicle is in an idle state; the first control module is used to control the fuel cell to charge the power battery when the state information meets a preset condition and the accelerator pedal opening is greater than a first preset opening.

[0011] In addition, the control device of the fuel cell vehicle according to the embodiment of the present invention may also have the following additional technical features:

[0012] According to one embodiment of the present invention, the status information includes parking status information and a state of charge value of the power battery; wherein, if the parking status information satisfies a preset parking condition and the state of charge value is less than a first preset state of charge threshold, it is determined that the status information satisfies the preset condition.

[0013] According to one embodiment of the present invention, the device further includes: a second control module. The second control module is used to control the fuel cell to stop charging the power battery when any of the following conditions is met: the parking state information does not meet the preset parking condition, the accelerator pedal opening is not greater than a second preset opening, and the state of charge value is not less than a second preset state of charge threshold; wherein the second preset opening is less than the first preset opening, and the second preset state of charge threshold is greater than or equal to the first preset state of charge threshold.

[0014] To achieve the above objectives, a third aspect of the present invention provides a controller, comprising a memory, a processor and a computer program stored in the memory, wherein when the computer program is executed by the processor, the above-mentioned fuel cell vehicle control method is implemented.

[0015] To achieve the above-mentioned object, a fourth aspect of the present invention provides a fuel cell vehicle, including the above-mentioned fuel cell vehicle control device.

[0016] The fuel cell vehicle and its control method, device and controller of the embodiments of the present invention control the fuel cell to charge the power battery according to the status information of the fuel cell vehicle and the accelerator pedal opening, without adding additional hardware, which can reduce the complexity of fuel cell vehicle control and save the production and manufacturing costs of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a flow chart of a control method for a fuel cell vehicle according to an embodiment of the present invention;

[0018] Figure 2 is a schematic structural diagram of a control device for a fuel cell vehicle according to an embodiment of the present invention;

[0019] Figure 3 is a structural block diagram of a controller according to an embodiment of the present invention;

[0020] Figure 4 It is a structural block diagram of a fuel cell vehicle according to an embodiment of the present invention. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] The following describes a fuel cell vehicle and a control method, device, and controller thereof according to an embodiment of the present invention with reference to the accompanying drawings.

[0023] Figure 1 It is a flowchart of a control method for a fuel cell vehicle according to an embodiment of the present invention.

[0024] like Figure 1 As shown, the fuel cell vehicle includes a fuel cell and a power battery, and the control method of the fuel cell vehicle includes:

[0025] S1, when the fuel cell vehicle is in an idling condition, obtaining status information and accelerator pedal opening of the fuel cell vehicle.

[0026] As an example, when a fuel cell vehicle is in an idling condition, the vehicle system can obtain status information and the accelerator pedal opening. Specifically, the vehicle system can detect the accelerator pedal opening through a position sensor.

[0027] S2: When the state information meets a preset condition and the accelerator pedal opening is greater than a first preset opening, the fuel cell is controlled to charge the power battery.

[0028] As an example, the first preset opening degree may be 5 percent of the maximum opening degree of the accelerator pedal.

[0029] As another example, when the state information meets the preset conditions, the fuel cell can charge the power battery by the driver stepping on the accelerator pedal. Specifically, the speed of charging the power battery by the fuel cell can be controlled according to the opening degree of the accelerator pedal controlled by the driver.

[0030] The control method of the fuel cell vehicle in the embodiment of the present invention controls the fuel cell to charge the power battery according to the status information of the fuel cell vehicle and the accelerator pedal opening, without adding additional hardware, which can reduce the complexity of fuel cell vehicle control and save the production, manufacturing and development costs of the vehicle.

[0031] In some embodiments of the present invention, the status information includes parking status information and a state of charge value of the power battery; wherein, if the parking status information satisfies a preset parking condition and the state of charge value is less than a first preset state of charge threshold, it is determined that the status information satisfies the preset condition.

[0032] As an example, if the parking state information does not meet the preset parking condition or the state of charge value is not less than a first preset state of charge threshold, it is determined that the state information does not meet the preset condition.

[0033] It should be noted that the parking status information is used to determine whether the fuel cell vehicle meets the conditions for the fuel cell to charge the power battery, and the state of charge value of the power battery is used to determine whether the power battery needs to be charged.

[0034] In this embodiment, based on the parking status information and the charge state value of the power battery, it is determined whether the power battery active charging mode can be turned on (i.e., the fuel cell charges the power battery). When the vehicle is in the parking state and the power battery is low on power, the power battery can be actively charged according to the needs of the driver to meet the driver's needs for vehicle operation.

[0035] In some embodiments of the present invention, after controlling the fuel cell to charge the power battery, the control method of the fuel cell vehicle further includes:

[0036] When any of the following conditions is met, the fuel cell is controlled to stop charging the power battery:

[0037] The parking state information does not meet the preset parking condition, the accelerator pedal opening is not greater than the second preset opening, and the state of charge value is not less than the second preset state of charge threshold.

[0038] The second preset opening is smaller than the first preset opening, and the second preset state of charge threshold is greater than or equal to the first preset state of charge threshold.

[0039] As an example, the second preset state of charge threshold is ninety percent.

[0040] As another example, when the opening degree of the accelerator pedal is zero percent (the driver does not step on the accelerator pedal), the fuel cell may be stopped from charging the power battery.

[0041] In this embodiment, the parking status information, accelerator pedal opening and charge state value are used to comprehensively judge whether the fuel cell has finished charging the power battery, thereby ensuring that the original control logic of the fuel cell vehicle remains unchanged and preventing the driver from operating the fuel cell vehicle incorrectly and causing a safety accident.

[0042] In some embodiments of the present invention, the parking state information includes: vehicle power switch state, gear state and vehicle speed. If the vehicle power switch state is in the on state, the gear state is in the parking gear, and the vehicle speed is 0, then it is determined that the parking state information meets the preset parking condition.

[0043] As an example, if the vehicle power switch state is in the off state or the gear state is not in the parking gear (P gear) or the vehicle speed is not 0, it is determined that the parking state information does not meet the preset parking condition.

[0044] In this embodiment, by comprehensively judging the vehicle power switch state, gear state and vehicle speed, it is possible to accurately determine whether the fuel cell vehicle meets the parking conditions, thereby reducing the risk of accidents and ensuring the safety of drivers and other road users.

[0045] In some embodiments of the present invention, the first preset state of charge threshold and the second preset state of charge threshold are 85-95%, and the first preset opening and the second preset opening are 0%-10%.

[0046] Corresponding to the above-mentioned embodiment, the present invention also proposes a control device for a fuel cell vehicle.

[0047] Figure 2 It is a schematic structural diagram of a control device for a fuel cell vehicle according to an embodiment of the present invention.

[0048] like Figure 2 As shown, the fuel cell vehicle includes a fuel cell and a power battery, and the control device 10 of the fuel cell vehicle includes: an acquisition module 101 and a first control module 102. The acquisition module 101 is used to acquire the state information and the accelerator pedal opening of the fuel cell vehicle when the fuel cell vehicle is in an idle state; the first control module 102 is used to control the fuel cell to charge the power battery when the state information meets a preset condition and the accelerator pedal opening is greater than a first preset opening.

[0049] As an example, the first preset opening degree may be 5 percent of the maximum opening degree of the accelerator pedal.

[0050] The control device 10 of the fuel cell vehicle in the embodiment of the present invention controls the fuel cell to charge the power battery according to the status information of the fuel cell vehicle and the accelerator pedal opening, without adding additional hardware, which can reduce the complexity of fuel cell vehicle control and save the production cost of the vehicle.

[0051] In some embodiments of the present invention, the status information includes parking status information and a state of charge value of the power battery; wherein, if the parking status information satisfies a preset parking condition and the state of charge value is less than a first preset state of charge threshold, it is determined that the status information satisfies the preset condition.

[0052] As an example, if the parking state information does not meet the preset parking condition or the state of charge value is not less than a first preset state of charge threshold, it is determined that the state information does not meet the preset condition.

[0053] It should be noted that the parking status information is used to determine whether the fuel cell vehicle meets the conditions for the fuel cell to charge the power battery, and the state of charge value of the power battery is used to determine whether the power battery needs to be charged.

[0054] In this embodiment, based on the parking status information and the charge state value of the power battery, it is determined whether the power battery active charging mode can be turned on (i.e., the fuel cell charges the power battery). When the vehicle is in the parking state and the power battery is low on power, the power battery can be actively charged according to the needs of the driver to meet the driver's needs for vehicle operation.

[0055] In some embodiments of the present invention, the control device 10 of the fuel cell vehicle further includes: a second control module. The second control module is used to control the fuel cell to stop charging the power battery when any of the following conditions is met: the parking state information does not meet the preset parking condition, the accelerator pedal opening is not greater than the second preset opening, and the state of charge value is not less than the second preset state of charge threshold; wherein the second preset opening is less than the first preset opening, and the second preset state of charge threshold is greater than or equal to the first preset state of charge threshold.

[0056] As an example, the second preset state of charge threshold is ninety percent.

[0057] As another example, when the accelerator pedal is opened to zero percent, the fuel cell may be stopped from charging the power battery.

[0058] In this embodiment, the second control module comprehensively determines whether the fuel cell has finished charging the power battery through parking status information, accelerator pedal opening and charge state value, thereby ensuring that the original control logic of the fuel cell vehicle remains unchanged and preventing the driver from operating the fuel cell vehicle incorrectly and causing a safety accident.

[0059] It should be noted that other specific implementations of the control device 10 for a fuel cell vehicle according to an embodiment of the present invention may refer to the specific implementations of the control method for a fuel cell vehicle according to the above-mentioned embodiment of the present invention.

[0060] Corresponding to the above embodiment, the present invention further provides a controller.

[0061] Figure 3 It is a structural block diagram of a controller according to an embodiment of the present invention.

[0062] like Figure 3 As shown, the controller 500 includes: a processor 501 and a memory 503. The processor 501 and the memory 503 are connected, such as through a bus 502. Optionally, the controller 500 may also include a transceiver 504. It should be noted that in actual applications, the transceiver 504 is not limited to one, and the structure of the controller 500 does not constitute a limitation on the embodiments of the present invention.

[0063] Processor 501 may be a CPU (Central Processing Unit), a general purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of the present invention. Processor 501 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0064] The bus 502 may include a path to transmit information between the above components. The bus 502 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. The bus 502 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 3 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0065] The memory 503 is used to store a computer program corresponding to the control method of the fuel cell vehicle of the above embodiment of the present invention, and the computer program is controlled and executed by the processor 501. The processor 501 is used to execute the computer program stored in the memory 503 to implement the contents shown in the above method embodiment.

[0066] Among them, the controller 500 includes but is not limited to: mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 3 The controller 500 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0067] The controller of the embodiment of the present invention can reduce the complexity of fuel cell vehicle control and save the production cost of the vehicle by implementing the control method of the fuel cell vehicle.

[0068] Corresponding to the above embodiment, the present invention also proposes a fuel cell vehicle.

[0069] Figure 4 It is a structural block diagram of a fuel cell vehicle according to an embodiment of the present invention.

[0070] like Figure 4 As shown, the fuel cell vehicle 1 of the embodiment of the present invention includes the fuel cell vehicle control device 10 proposed in the above embodiment of the present invention. The specific implementation method thereof can refer to the above embodiment and will not be described again here to avoid redundancy.

[0071] According to the fuel cell vehicle 1 of the embodiment of the present invention, the complexity of control can be reduced and the production cost of the vehicle can be saved.

[0072] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0073] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0075] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0076] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A control method for a fuel cell vehicle, characterized in that: The fuel cell vehicle comprises a fuel cell and a power battery, and the method comprises: When the fuel cell vehicle is in an idling condition, obtaining status information and an accelerator pedal opening of the fuel cell vehicle; When the state information meets a preset condition and the accelerator pedal opening is greater than a first preset opening, the fuel cell is controlled to charge the power battery.

2. The control method of a fuel cell vehicle according to claim 1, characterized in that: The state information includes parking state information and a state of charge value of the power battery; If the parking state information satisfies a preset parking condition and the state of charge value is less than a first preset state of charge threshold, it is determined that the state information satisfies the preset condition.

3. The control method of a fuel cell vehicle according to claim 2, characterized in that: After controlling the fuel cell to charge the power battery, the method further includes: When any of the following conditions is met, the fuel cell is controlled to stop charging the power battery: The parking state information does not satisfy the preset parking condition, the accelerator pedal opening is not greater than a second preset opening, and the state of charge value is not less than a second preset state of charge threshold; The second preset opening is smaller than the first preset opening, and the second preset state of charge threshold is greater than or equal to the first preset state of charge threshold.

4. The control method of a fuel cell vehicle according to claim 2, characterized in that: The parking state information includes: vehicle power switch state, gear state and vehicle speed; If the vehicle power switch is in the on state, the gear state is in the parking gear, and the vehicle speed is 0, it is determined that the parking state information meets the preset parking condition.

5. The control method of a fuel cell vehicle according to claim 3, characterized in that: The first preset state of charge threshold and the second preset state of charge threshold are between 85% and 95%, and the first preset opening degree and the second preset opening degree are between 0% and 10%.

6. A control device for a fuel cell vehicle, characterized in that: The fuel cell vehicle comprises a fuel cell and a power battery, and the device comprises: An acquisition module, used to acquire the state information and accelerator pedal opening of the fuel cell vehicle when the fuel cell vehicle is in an idling condition; The first control module is used to control the fuel cell to charge the power battery when the state information meets a preset condition and the accelerator pedal opening is greater than a first preset opening.

7. The control device for a fuel cell vehicle according to claim 6, characterized in that: The state information includes parking state information and a state of charge value of the power battery; If the parking state information satisfies a preset parking condition and the state of charge value is less than a first preset state of charge threshold, it is determined that the state information satisfies the preset condition.

8. The control device for a fuel cell vehicle according to claim 7, characterized in that: The device also includes: a second control module, configured to control the fuel cell to stop charging the power battery when any of the following conditions is met: the parking state information does not meet the preset parking condition, the accelerator pedal opening is not greater than a second preset opening, and the state of charge value is not less than a second preset state of charge threshold; The second preset opening is smaller than the first preset opening, and the second preset state of charge threshold is greater than or equal to the first preset state of charge threshold.

9. A controller, characterized in that: The invention comprises a memory, a processor and a computer program stored in the memory, wherein when the computer program is executed by the processor, the control method of the fuel cell vehicle according to any one of claims 1 to 5 is implemented.

10. A fuel cell vehicle, characterized in that: A control device for a fuel cell vehicle comprising the control device as described in any one of claims 6 to 8.

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