CN114792830B - Acceleration-based automobile fuel cell drainage control method and device - Google Patents
Acceleration-based automobile fuel cell drainage control method and device Download PDFInfo
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- CN114792830B CN114792830B CN202210480962.6A CN202210480962A CN114792830B CN 114792830 B CN114792830 B CN 114792830B CN 202210480962 A CN202210480962 A CN 202210480962A CN 114792830 B CN114792830 B CN 114792830B
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
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- H01M8/04992—Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
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- H01M8/04291—Arrangements for managing water in solid electrolyte fuel cell systems
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- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
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Abstract
The application discloses an acceleration-based automobile fuel cell drainage control method and device. The acceleration-based automobile fuel cell water drainage control method comprises the following steps: acquiring vehicle acceleration information; acquiring basic information of a fuel cell; generating a drain valve control strategy according to the vehicle acceleration information and the fuel cell basic information; and transmitting the drainage valve control strategy to a drainage valve, so that the drainage valve acts according to the drainage valve control strategy, and the drainage speed of the automobile fuel cell is adjusted. The acceleration-based automobile fuel cell drainage control method is based on an actually-operated fuel cell automobile, an acceleration sensor is applied to determine the current acceleration, the combined working condition characteristics of longitudinal acceleration and transverse acceleration of the automobile are analyzed based on the system operation condition, drainage interval time and drainage duration are adjusted, intelligent active adjustment of a drainage system is realized, efficient operation of the fuel cell system is guaranteed, and the service life is prolonged.
Description
Technical Field
The application relates to the technical field of automobile fuel cell drainage, in particular to an acceleration-based automobile fuel cell drainage control method, an acceleration-based automobile fuel cell drainage control device and a vehicle.
Background
Fuel cell automobiles are one of the main categories of clean energy automobiles, and are also the final form of future automobile development. When the fuel cell automobile runs, all parts are required to work cooperatively; in the prior art, a fuel cell water discharge valve is required to perform water discharge action in the running process of a fuel cell automobile, liquid water generated in the battery is discharged by opening the water discharge valve, stack performance reduction caused by flooding is prevented, and most of water discharge control strategies are that different power values are output according to the fuel cell to adjust water discharge time and water discharge interval; when the vehicle continuously accelerates, water drops generated in the battery can be gathered along with inertia, so that the water drops in the electric pile can be gathered without changing a control strategy, the electric pile performance can be attenuated due to excessive local water quantity, and the flooding problem can be caused when the vehicle is seriously immersed.
It is therefore desirable to have a solution that solves or at least alleviates the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The invention aims to provide an acceleration-based automobile fuel cell water drainage control method for solving at least one technical problem.
In one aspect of the present invention, there is provided an acceleration-based automotive fuel cell drain control method including:
Acquiring vehicle acceleration information;
acquiring basic information of a fuel cell;
Generating a drain valve control strategy according to the vehicle acceleration information and the fuel cell basic information;
and transmitting the drainage valve control strategy to a drainage valve, so that the drainage valve acts according to the drainage valve control strategy, and the drainage speed of the automobile fuel cell is adjusted.
Optionally, the generating the drain valve control signal according to the vehicle acceleration information includes:
judging whether the vehicle is in an abnormal acceleration state or not according to the vehicle acceleration information, if so, then
And generating a drain valve control strategy according to the basic information of the fuel cell.
Optionally, the generating the drain valve control strategy includes:
Acquiring the severity according to the vehicle acceleration information, and if the severity is high-grade severity
Acquiring a first influence factor according to the advanced severity;
And generating a drain valve control strategy according to the first influence factor and the fuel cell basic information.
Optionally, the generating the drain valve control strategy includes:
Acquiring the severity according to the vehicle acceleration information, and if the severity is low-level severity
Acquiring a second influence factor according to the low-level severe degree;
and generating a drain valve control strategy according to the second influence factor and the fuel cell basic information.
Optionally, the vehicle acceleration information includes a vehicle traveling direction acceleration, an acceleration in a direction perpendicular to the vehicle traveling direction.
Optionally, the determining whether the vehicle is in the abnormal acceleration state according to the vehicle acceleration information includes:
judging whether the absolute acceleration of the vehicle running direction exceeds a first running threshold value and/or judging whether the absolute acceleration of the direction vertical to the vehicle running direction exceeds a first vertical threshold value, if so, then
And judging that the vehicle is in an abnormal acceleration state.
Optionally, the acquiring the severity according to the vehicle acceleration information includes:
Judging whether the absolute acceleration of the vehicle in the traveling direction exceeds a second traveling threshold value and/or judging whether the absolute acceleration of the direction vertical to the traveling direction of the vehicle exceeds a second vertical threshold value; if not, then
Judging the severity as low-level severity;
The obtaining the severity according to the vehicle acceleration information comprises the following steps:
judging whether the absolute acceleration of the vehicle in the traveling direction exceeds a second traveling threshold value and/or judging whether the absolute acceleration of the direction vertical to the traveling direction of the vehicle exceeds a second vertical threshold value; if yes, then
And judging the severe degree as an advanced severe degree.
Optionally, the drain valve control strategy includes a drain interval time strategy and a drain on time strategy.
The application also provides an acceleration-based automobile fuel cell drainage control device, which comprises:
the acceleration information acquisition module is used for acquiring vehicle acceleration information;
The fuel cell basic information acquisition module is used for acquiring the basic information of the fuel cell;
The system comprises a drain valve control strategy generation module, a control module and a control module, wherein the drain valve control strategy generation module is used for generating a drain valve control strategy according to vehicle acceleration information and fuel cell basic information;
and the sending module is used for transmitting the drain valve control strategy to a drain valve so that the drain valve acts according to the drain valve control strategy, and the drain speed of the automobile fuel cell is adjusted.
The present application also provides a vehicle including an automotive fuel cell system including:
An acceleration-based automotive fuel cell drain control device, which is the acceleration-based automotive fuel cell drain control device described above;
And the drainage valve is connected with the acceleration-based automobile fuel cell drainage control device and is used for acquiring a drainage valve control strategy and then performing actions according to the drainage valve control strategy.
Advantageous effects
The acceleration-based automobile fuel cell drainage control method is based on an actually-operated fuel cell automobile, an acceleration sensor is applied to determine the current acceleration, the combined working condition characteristics of longitudinal acceleration and transverse acceleration of the automobile are analyzed based on the system operation condition, drainage interval time and drainage duration are adjusted, intelligent active adjustment of a drainage system is realized, efficient operation of the fuel cell system is guaranteed, and the service life is prolonged.
Drawings
Fig. 1 is a flow chart of a prior art acceleration-based automotive fuel cell water drainage control method.
Fig. 2 is a system schematic diagram of an acceleration-based automotive fuel cell water drainage control method according to an embodiment of the present application.
Fig. 3 is a schematic diagram of the principle of vehicle motion and fuel cell water discharge in an embodiment of the application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application become more apparent, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the application. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a flow chart of a prior art acceleration-based automotive fuel cell water drainage control method.
The acceleration-based automobile fuel cell water discharge control method as shown in fig. 1 includes:
step1: acquiring vehicle acceleration information;
Step 2: acquiring basic information of a fuel cell;
step 3: generating a drain valve control strategy according to the vehicle acceleration information and the fuel cell basic information;
Step 4: and transmitting the drain valve control strategy to a drain valve, so that the drain valve acts according to the drain valve control strategy, and the drain speed of the automobile fuel cell is adjusted.
The acceleration-based automobile fuel cell drainage control method is based on an actually-operated fuel cell automobile, an acceleration sensor is applied to determine the current acceleration, the combined working condition characteristics of longitudinal acceleration and transverse acceleration of the automobile are analyzed based on the system operation condition, drainage interval time and drainage duration are adjusted, intelligent active adjustment of a drainage system is realized, efficient operation of the fuel cell system is guaranteed, and the service life is prolonged.
In this embodiment, generating the drain valve control signal from the vehicle acceleration information includes:
Judging whether the vehicle is in an abnormal acceleration state according to the vehicle acceleration information, if so, then
And generating a drain valve control strategy according to the basic information of the fuel cell.
In this embodiment, generating the drain valve control strategy includes:
acquiring the severity according to the vehicle acceleration information, and if the severity is high-grade severity
Acquiring a first influence factor according to the advanced severity;
And generating a drain valve control strategy according to the first influence factor and the basic information of the fuel cell.
In this embodiment, generating the drain valve control strategy includes:
acquiring the severity according to the vehicle acceleration information, and if the severity is low-level severity
Acquiring a second influence factor according to the low-level severe degree;
and generating a drain valve control strategy according to the second influence factor and the basic information of the fuel cell.
In the present embodiment, the vehicle acceleration information includes a vehicle traveling direction acceleration, an acceleration in a direction perpendicular to the vehicle traveling direction, an acceleration duration.
In this embodiment, determining whether the vehicle is in an abnormal acceleration state based on the vehicle acceleration information includes:
judging whether the absolute acceleration of the vehicle running direction exceeds a first running threshold value and/or judging whether the absolute acceleration of the direction vertical to the vehicle running direction exceeds a first vertical threshold value, if so, then
And judging that the vehicle is in an abnormal acceleration state.
In this embodiment, acquiring the severity level according to the vehicle acceleration information includes:
judging whether the absolute acceleration of the vehicle in the traveling direction exceeds a second traveling threshold value and/or judging whether the absolute acceleration of the direction vertical to the traveling direction of the vehicle exceeds a second vertical threshold value; if not, then
Judging the severity as low-level severity;
Judging whether the absolute acceleration of the vehicle in the traveling direction exceeds a second traveling threshold value and/or judging whether the absolute acceleration of the direction vertical to the traveling direction of the vehicle exceeds a second vertical threshold value; if yes, then
Judging the severity as a high-grade severity.
In the present embodiment, the drain valve control strategy includes a drain interval time strategy and a drain on time strategy.
The application has the following advantages:
1. The acceleration-based automobile fuel cell drainage control method is based on an actually-operated fuel cell automobile, an acceleration sensor is applied to determine the current acceleration, the combined working condition characteristics of longitudinal acceleration and transverse acceleration of the automobile are analyzed based on the system operation condition, drainage interval time and drainage duration are adjusted, intelligent active adjustment of a drainage system is realized, efficient operation of the fuel cell system is guaranteed, and the service life is prolonged.
2. The application judges the severity, so as to more intelligently regulate the drainage, thereby being applicable to various working conditions.
The application is described in further detail below by way of examples, which should not be construed as limiting the application in any way.
Referring to fig. 3, the hydrogen inlet and outlet and the oxygen inlet and outlet ports of the galvanic pile are positioned at different sides, and the crossover characteristic is that the hydrogen inlet end and the oxygen outlet end are positioned at the same end, and the oxygen inlet end and the hydrogen outlet end are positioned at the same side; the flow of the application is as follows:
During the running process of the vehicle, the vehicle acceleration sensor sends real-time acceleration information (including the acceleration magnitude, direction and duration information) of the vehicle to the FCCU (Fuel Cell Control Unit, a fuel cell controller);
The FCCU acquires vehicle acceleration information;
The fuel cell basic information is acquired, and in the present embodiment, the fuel cell basic information includes an anode pressure value inside the stack, a water droplet flow speed of a water droplet at any one position inside the fuel cell, and a travel distance traveled by the water droplet at the time of water discharge.
In this embodiment, a drain valve control strategy is generated according to the vehicle acceleration information and the fuel cell basic information, specifically:
judging whether the vehicle is in an abnormal acceleration state according to the vehicle acceleration information, specifically, judging whether the vehicle is in the abnormal acceleration state according to the vehicle acceleration information comprises:
judging whether the acceleration in the vehicle traveling direction exceeds a first traveling threshold value and/or judging whether the acceleration in the direction perpendicular to the vehicle traveling direction exceeds a first perpendicular threshold value, if so, then
Judging whether the acceleration duration of the acceleration of the vehicle running direction exceeding the first running threshold exceeds a first running preset time and/or judging whether the acceleration duration of the acceleration of the direction vertical to the vehicle running direction exceeding the first vertical threshold exceeds a first vertical preset time, if so, then
And judging that the vehicle is in an abnormal acceleration state.
In the present embodiment, the following determination conditions are adopted to determine whether the current vehicle is in the acceleration abnormality stage: acceleration abnormal stage determination condition: a i>aitg and t i>titg.
In this embodiment, a i is acceleration, t i is acceleration duration, a 1 represents acceleration in the vehicle traveling direction when i=1, acceleration is positive in the forward direction and negative in the backward direction, a 2 represents acceleration in the direction perpendicular to the vehicle traveling direction when i=2, acceleration is positive to the left and negative to the right, a 1tg represents a first travel threshold, and a 1tg represents a first vertical threshold.
T 1tg represents a first travel preset time, and t 2tg represents a first vertical preset time; wherein, the threshold value can be calibrated and modified according to different electric stacks and vehicles.
Referring to fig. 3, in the present embodiment, the vehicle traveling direction is the X axis, and the vehicle lateral direction is the Y axis;
In the present embodiment, the acceleration in the vehicle traveling direction includes the acceleration at the time of acceleration of the vehicle and the acceleration at the time of deceleration of the vehicle, and when the vehicle is accelerated, the value of the X positive direction representing the acceleration is positive; when the automobile is decelerating, the value of the X-direction negative direction representative acceleration is negative:
in this embodiment, if the vehicle is decelerating, that is, the X direction is a negative direction, and at this time, if the absolute acceleration value is greater than 4m/s 2 (that is, greater than the first travel threshold, and different values according to different stacks), the front side of water accumulation is described, and at this time, hydrogen is unfavorable for entering the stacks, and at this time, the drainage opening time strategy is obtained by adopting the following formula:
t 1＝t0*(-a/10+1)+T2; wherein,
T 0 is the current opening time of the drain valve determined according to the pile power;
-a is the value of the acceleration when the X direction is the negative direction;
t 1 is the corrected drain opening time.
In this embodiment, if the acceleration is forward (i.e. when a is positive), it is explained that the water amount is more concentrated at the drain end, and at this time, the drain opening time is not required to be adjusted, i.e. the drain opening time strategy is the same as that without the acceleration, and it is understood that in other embodiments, the drain opening time when the acceleration is forward may be adjusted.
In this embodiment, if the vehicle turns left, that is, the acceleration is negative in the Y direction, the water is collected on the right side of the pile at this time, and the drainage is smooth at this time, and the drainage duration and the drainage interval time are determined according to the output power of the pile, that is, the drainage opening time strategy is the same as that without the acceleration.
In this embodiment, the acceleration is positive in the Y direction, and at this time, the water amount is accumulated at the air intake end (the left side of the pile), and drainage is difficult, and at this time, the drainage opening time strategy is obtained by adopting the following formula:
t 1＝t0*(-a/10+1)+T2; wherein,
T 0 is the current opening time of the drain valve determined according to the pile power;
-a is the value of the acceleration when the X direction is the negative direction;
t 1 is the corrected drain opening time.
In this embodiment, whether the vehicle is in an abnormal acceleration state is determined according to the vehicle acceleration information, and if not, the acceleration-based vehicle fuel cell water drainage control method of the present application is ended.
In this embodiment, the acquiring the severity according to the vehicle acceleration information includes:
judging whether the absolute acceleration of the vehicle running direction exceeds a second running threshold value and/or judging whether the absolute acceleration of the direction vertical to the vehicle running direction exceeds a second vertical threshold value if so
Judging the severe degree to be high-grade severe degree, and if not, judging the severe degree to be low-grade severe degree.
When in low-level severity, the first impact factor is T First influencing factor =0.7x;
The drainage interval time strategy is obtained by adopting the following modes:
T 1＝T First influencing factor +t; t is the time for water drops to walk in the pipeline; t 1 drain interval; t First influencing factor is a first influencing factor, wherein,
Wherein,
P is the pressure value of the anode inside the electric pile; ρ represents the water drop density; v represents the water droplet flow velocity of a water droplet at any position within the fuel cell;
In this embodiment, C is obtained using the following formula:
Wherein,
P is the pressure value of the anode inside the electric pile; ρ represents the water drop density; v represents the water droplet flow velocity of a water droplet at any one position within the fuel cell.
In this embodiment, the second influencing factor is T Second influencing factor =0.5x;
The drainage interval time strategy is obtained by adopting the following modes:
T 1＝T Second influencing factor +t; t is the time for water drops to walk in the pipeline; t 1 drain interval; t Second influencing factor is a second influencing factor, wherein,
Wherein,
P is the pressure value of the anode inside the electric pile; ρ represents the water drop density; v represents the water droplet flow velocity of a water droplet at any position within the fuel cell;
In this embodiment, C is obtained using the following formula:
Wherein,
P is the pressure value of the anode inside the electric pile; ρ represents the water drop density; v represents the water droplet flow velocity of a water droplet at any one position within the fuel cell.
The application also provides an acceleration-based automobile fuel cell drainage control device, which comprises an acceleration information acquisition module, a fuel cell basic information acquisition module, a drainage valve control strategy generation module and a sending module, wherein the acceleration information acquisition module is used for acquiring vehicle acceleration information; the fuel cell basic information acquisition module is used for acquiring fuel cell basic information; the drainage valve control strategy generation module is used for generating a drainage valve control strategy according to the vehicle acceleration information and the fuel cell basic information; the sending module is used for transmitting the drain valve control strategy to the drain valve, so that the drain valve acts according to the drain valve control strategy, and the drain speed of the automobile fuel cell is adjusted.
It will be appreciated that the above description of the method is equally applicable to the description of the apparatus.
The application also provides a vehicle, which comprises an automobile fuel cell system, wherein the automobile fuel cell system comprises an acceleration-based automobile fuel cell drainage control device and a drainage valve, and the acceleration-based automobile fuel cell drainage control device is the acceleration-based automobile fuel cell drainage control device; the drainage valve is connected with the acceleration-based automobile fuel cell drainage control device and is used for acquiring a drainage valve control strategy and then performing actions according to the drainage valve control strategy.
The application also provides an electronic device comprising a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the acceleration-based automobile fuel cell water drainage control method is realized when the processor executes the computer program.
The application also provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program can realize the acceleration-based automobile fuel cell water draining control method when being executed by a processor.
Fig. 2 is an exemplary structural diagram of an electronic device capable of implementing the acceleration-based automotive fuel cell water discharge control method provided in accordance with one embodiment of the present application.
As shown in fig. 2, the electronic device includes an input device 501, an input interface 502, a central processor 503, a memory 504, an output interface 505, and an output device 506. The input interface 502, the central processing unit 503, the memory 504, and the output interface 505 are connected to each other through a bus 507, and the input device 501 and the output device 506 are connected to the bus 507 through the input interface 502 and the output interface 505, respectively, and further connected to other components of the electronic device. Specifically, the input device 504 receives input information from the outside, and transmits the input information to the central processor 503 through the input interface 502; the central processor 503 processes the input information based on computer executable instructions stored in the memory 504 to generate output information, temporarily or permanently stores the output information in the memory 504, and then transmits the output information to the output device 506 through the output interface 505; the output device 506 outputs the output information to the outside of the electronic device for use by the user.
That is, the electronic device shown in fig. 2 may also be implemented to include: a memory storing computer-executable instructions; and one or more processors that, when executing the computer-executable instructions, implement the acceleration-based automotive fuel cell water drainage control method described in connection with fig. 1.
In one embodiment, the electronic device shown in FIG. 2 may be implemented to include: a memory 504 configured to store executable program code; the one or more processors 503 are configured to execute the executable program code stored in the memory 504 to perform the acceleration-based automotive fuel cell water drainage control method in the above-described embodiment.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.
Computer-readable media include both permanent and non-permanent, removable and non-removable media, and the media may be implemented in any method or technology for storage of information. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Furthermore, it is evident that the word "comprising" does not exclude other elements or steps. A plurality of units, modules or means recited in the apparatus claims can also be implemented by means of software or hardware by means of one unit or total means.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The Processor referred to in this embodiment may be a central processing unit (Central Processing Unit, CPU), or other general purpose Processor, digital signal Processor (DIGITAL SIGNAL Processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), off-the-shelf Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory may be used to store computer programs and/or modules, and the processor may perform various functions of the apparatus/terminal device by executing or executing the computer programs and/or modules stored in the memory, and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart memory card (SMART MEDIA CARD, SMC), secure Digital (SD) card, flash memory card (FLASH CARD), at least one disk storage device, flash memory device, or other volatile solid-state storage device.
In this embodiment, the modules/units of the apparatus/terminal device integration may be stored in a computer readable storage medium if implemented in the form of software functional units and sold or used as a separate product. Based on such understanding, the present application may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, and the computer program may be stored in a computer readable storage medium, where the computer program, when executed by a processor, may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the content of the computer readable medium can be appropriately increased or decreased according to the requirements of the legislation and the practice of the patent in the jurisdiction. While the application has been described in terms of preferred embodiments, it is not intended to limit the application thereto, and any person skilled in the art can make variations and modifications without departing from the spirit and scope of the present application, and therefore the scope of the application is to be determined from the appended claims.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Furthermore, it is evident that the word "comprising" does not exclude other elements or steps. A plurality of units, modules or means recited in the apparatus claims can also be implemented by means of software or hardware by means of one unit or total means.
While the invention has been described in detail in the foregoing general description and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (6)
1. An acceleration-based automobile fuel cell water drainage control method is characterized by comprising the following steps:
Acquiring vehicle acceleration information;
acquiring basic information of a fuel cell; the basic information of the fuel cell comprises an anode pressure value in the electric pile, a water drop flow speed of water drops at any position in the fuel cell and a water drop travelling path during water drainage;
Generating a drain valve control strategy according to the vehicle acceleration information and the fuel cell basic information;
Transmitting the drain valve control strategy to a drain valve, so that the drain valve acts according to the drain valve control strategy, and the drain speed of the automobile fuel cell is adjusted;
The generating the drain valve control signal according to the vehicle acceleration information and the fuel cell basic information includes:
judging whether the vehicle is in an abnormal acceleration state or not according to the vehicle acceleration information, if so, then
Generating a drain valve control strategy according to the basic information of the fuel cell;
The generating a drain valve control strategy includes:
Acquiring the severity according to the vehicle acceleration information, and if the severity is high-grade severity
Acquiring a first influence factor according to the advanced severity;
Generating a drain valve control strategy according to the first influence factor and the fuel cell basic information;
The generating a drain valve control strategy includes:
Acquiring the severity according to the vehicle acceleration information, and if the severity is low-level severity
Acquiring a second influence factor according to the low-level severe degree;
generating a drain valve control strategy according to the second influence factor and the fuel cell basic information;
the vehicle acceleration information is acceleration in a direction in which the vehicle traveling direction acceleration is perpendicular to the vehicle traveling direction.
2. The acceleration-based automotive fuel cell water discharge control method according to claim 1, wherein the determining whether the vehicle is in an abnormal acceleration state based on the vehicle acceleration information includes:
judging whether the absolute acceleration of the vehicle running direction exceeds a first running threshold value and/or judging whether the absolute acceleration of the direction vertical to the vehicle running direction exceeds a first vertical threshold value, if so, then
And judging that the vehicle is in an abnormal acceleration state.
3. The acceleration-based automotive fuel cell water discharge control method according to claim 2, characterized in that the obtaining of the severity from the vehicle acceleration information includes:
Judging whether the absolute acceleration of the vehicle in the traveling direction exceeds a second traveling threshold value and/or judging whether the absolute acceleration of the direction vertical to the traveling direction of the vehicle exceeds a second vertical threshold value; if not, then
Judging the severity as low-level severity;
the obtaining the severity according to the vehicle acceleration information further includes:
judging whether the absolute acceleration of the vehicle in the traveling direction exceeds a second traveling threshold value and/or judging whether the absolute acceleration of the direction vertical to the traveling direction of the vehicle exceeds a second vertical threshold value; if yes, then
And judging the severe degree as an advanced severe degree.
4. The acceleration-based automotive fuel cell drain control method according to claim 3, wherein the drain valve control strategy includes a drain interval time strategy and a drain on time strategy.
5. An acceleration-based automotive fuel cell drain control device, characterized by comprising:
the acceleration information acquisition module is used for acquiring vehicle acceleration information;
The fuel cell basic information acquisition module is used for acquiring the basic information of the fuel cell; the basic information of the fuel cell comprises an anode pressure value in the electric pile, a water drop flow speed of water drops at any position in the fuel cell and a water drop travelling path during water drainage;
The system comprises a drain valve control strategy generation module, a control module and a control module, wherein the drain valve control strategy generation module is used for generating a drain valve control strategy according to vehicle acceleration information and fuel cell basic information;
the sending module is used for transmitting the drain valve control strategy to a drain valve so that the drain valve acts according to the drain valve control strategy and the drain speed of the automobile fuel cell is adjusted;
The generating the drain valve control signal according to the vehicle acceleration information includes:
judging whether the vehicle is in an abnormal acceleration state or not according to the vehicle acceleration information and the fuel cell basic information, if so, judging that
Generating a drain valve control strategy according to the basic information of the fuel cell;
The generating a drain valve control strategy includes:
Acquiring the severity according to the vehicle acceleration information, and if the severity is high-grade severity
Acquiring a first influence factor according to the advanced severity;
Generating a drain valve control strategy according to the first influence factor and the fuel cell basic information;
The generating a drain valve control strategy includes:
Acquiring the severity according to the vehicle acceleration information, and if the severity is low-level severity
Acquiring a second influence factor according to the low-level severe degree;
generating a drain valve control strategy according to the second influence factor and the fuel cell basic information;
the vehicle acceleration information is acceleration in a direction in which the vehicle traveling direction acceleration is perpendicular to the vehicle traveling direction.
6. A vehicle, the vehicle comprising an automotive fuel cell system, the automotive fuel cell system comprising:
An acceleration-based automotive fuel cell drain control device according to claim 5;
And the drainage valve is connected with the acceleration-based automobile fuel cell drainage control device and is used for acquiring a drainage valve control strategy and then performing actions according to the drainage valve control strategy.
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| JP5011891B2 (en) * | 2006-08-25 | 2012-08-29 | 株式会社デンソー | Fuel cell system |
| JP2008262735A (en) * | 2007-04-10 | 2008-10-30 | Toyota Motor Corp | Fuel cell system and discharge valve control method |
| JP6064958B2 (en) * | 2014-09-24 | 2017-01-25 | トヨタ自動車株式会社 | Fuel cell system for electric vehicle and control method thereof |
| JP6210051B2 (en) * | 2014-11-14 | 2017-10-11 | トヨタ自動車株式会社 | Fuel cell drainage method and fuel cell system |
| JP6314855B2 (en) * | 2015-01-23 | 2018-04-25 | トヨタ自動車株式会社 | Fuel cell system and fuel cell operation control method |
| JP6555169B2 (en) * | 2016-03-29 | 2019-08-07 | トヨタ自動車株式会社 | Control method of fuel cell system |
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| JP7127306B2 (en) * | 2018-03-16 | 2022-08-30 | トヨタ自動車株式会社 | Vehicle and its control method |
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