A control method of a hydrogen injection system and a hydrogen injection system

Abstract

The embodiment of the application discloses a kind of control method and hydrogen injection system of hydrogen injection system, hydrogen injection system includes: hydrogen injector, flow guide cap, controller, flow guide cap is located at the front end of hydrogen injector, flow guide cap is provided with multiple different angle nozzles, each nozzle of flow guide cap is electrically connected with controller;Control method is executed by controller, and control method includes: receiving control signal;According to control signal, the state of each nozzle of flow guide cap is controlled to adjust the hydrogen injection angle of hydrogen injector.The control method and hydrogen injection system of hydrogen injection system provided by the embodiment of the application can improve control reliability.

Description

Technical Field

[0001] The present invention relates to hydrogen injection technology, and more particularly to a control method for a hydrogen injection system and a hydrogen injection system. Background Technology

[0002] The hydrogen injector in a hydrogen injection system injects hydrogen to provide hydrogen fuel to the internal combustion engine and is one of the key components of the system. A reliable and stable hydrogen injector ensures the smooth and reliable operation of the internal combustion engine. The hydrogen injection system can change the injection angle to allow the hydrogen jet to enter the cylinder of the internal combustion engine at different angles, thus creating different mixing effects in the cylinder. Currently, the control methods for existing hydrogen injection systems, particularly in controlling the injection angle of the hydrogen injector, require further improvement in reliability. Summary of the Invention

[0003] This invention provides a control method and a hydrogen injection system for improving control reliability.

[0004] In a first aspect, embodiments of the present invention provide a control method for a hydrogen injection system, the hydrogen injection system comprising: a hydrogen injector, a flow guide cap, and a controller, the flow guide cap being located at the front end of the hydrogen injector, the flow guide cap being provided with multiple nozzles at different angles, and each nozzle of the flow guide cap being electrically connected to the controller; the control method is executed by the controller, and the control method includes:

[0005] Receive control signals;

[0006] The state of each nozzle of the guide cap is controlled according to the control signal to adjust the hydrogen injection angle of the hydrogen injector.

[0007] Optionally, the hydrogen injection system is used to provide hydrogen fuel to the internal combustion engine, and controlling the state of each nozzle of the guide cap according to the control signal includes:

[0008] When the control signal is the control signal corresponding to the torque of the internal combustion engine being greater than or less than a preset value, the state of each nozzle of the guide cap is adjusted to obtain the corresponding torque of the internal combustion engine.

[0009] The nozzle to be opened is determined based on the torque of the corresponding internal combustion engine.

[0010] Optionally, the flow guide cap has N nozzles, and adjusting the state of each nozzle of the flow guide cap includes:

[0011] The N nozzles of the flow guide cap are controlled to open only one nozzle at a time, and each nozzle is controlled to complete one opening state to obtain the torque of the internal combustion engine corresponding to each nozzle opening; the N nozzles correspond to N torques.

[0012] Optionally, determining the nozzle to be opened based on the corresponding torque of the internal combustion engine includes:

[0013] Based on the torque of the corresponding internal combustion engine, if the absolute value of the difference between the kth torque and the preset value is the smallest among the N torques, then the nozzle corresponding to the kth torque is determined to be the nozzle at the optimal opening angle, and all other nozzles are closed.

[0014] Optionally, adjusting the state of each nozzle of the flow guide cap includes:

[0015] Adjust the state of each nozzle in turn according to the arrangement of each nozzle on the guide cap.

[0016] Optionally, the hydrogen injection system is used to provide hydrogen fuel to the internal combustion engine, and controlling the state of each nozzle of the guide cap according to the control signal includes:

[0017] When the control signal is the control signal corresponding to the torque of the internal combustion engine being equal to a preset value, the state of each nozzle of the guide cap remains unchanged.

[0018] Optionally, controlling the state of each nozzle of the flow guide cap according to the control signal includes:

[0019] If the control signal is the control signal corresponding to the completion of hydrogen injection, then all nozzles of the flow guide cap are closed.

[0020] If the control signal is the control signal corresponding to the incomplete hydrogen injection, then the state of each nozzle of the flow guide cap remains unchanged.

[0021] Optionally, before controlling the state of each nozzle of the flow guide cap according to the control signal, the following steps are included:

[0022] The initial state of the flow deflector is controlled so that the nozzle at the top of the flow deflector is open, and the other nozzles are closed.

[0023] Secondly, embodiments of the present invention provide a hydrogen injection system, including: a hydrogen injector, a flow guide cap, and a controller. The flow guide cap is located at the front end of the hydrogen injector and is provided with multiple nozzles at different angles. Each nozzle of the flow guide cap is electrically connected to the controller. The control method of the hydrogen injection system as described in the first aspect is executed by the controller.

[0024] Optionally, the nozzle is a circular nozzle with a diameter of 0.5mm-1mm.

[0025] The present invention provides a control method and a hydrogen injection system for a hydrogen injection system. The hydrogen injection system includes a hydrogen injector, a flow guide cap, and a controller. The flow guide cap is located at the front end of the hydrogen injector and has multiple nozzles at different angles. Each nozzle of the flow guide cap is electrically connected to the controller. The control method is executed by the controller and includes: receiving a control signal; and controlling the state of each nozzle of the flow guide cap according to the control signal to adjust the hydrogen injection angle of the hydrogen injector. The control method and the hydrogen injection system provided in this invention control the state of each nozzle of the flow guide cap according to the received control signal to adjust the hydrogen injection angle of the hydrogen injector. For example, if the control signal is a control signal indicating that the torque of the internal combustion engine is greater than or less than a preset value, then the state of each nozzle of the flow guide cap is changed sequentially to obtain the corresponding torque. Based on the relationship between the corresponding torque and the preset value, the nozzles that need to be opened among the nozzles of the flow guide cap are determined, i.e., the optimal hydrogen injection angle of the hydrogen injector is determined, improving control reliability. Attached Figure Description

[0026] Figure 1 This is a flowchart of a control method for a hydrogen injection system provided in Embodiment 1 of the present invention;

[0027] Figure 2 This is a flowchart of a control method for a hydrogen injection system provided in Embodiment 2 of the present invention;

[0028] Figure 3 This is a structural block diagram of a control device for a hydrogen injection system provided in Embodiment 3 of the present invention;

[0029] Figure 4 This is a schematic diagram of a hydrogen injection system provided in Embodiment 4 of the present invention;

[0030] Figure 5 This is a schematic diagram of a flow guide cap provided in Embodiment 4 of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of a terminal provided in Embodiment 5 of the present invention. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0033] Example 1

[0034] Figure 1This is a flowchart of a control method for a hydrogen injection system provided in Embodiment 1 of the present invention. This embodiment is applicable to controlling hydrogen injection systems, etc. The hydrogen injection system includes: a hydrogen injector, a flow guide cap, and a controller. The flow guide cap is located at the front end of the hydrogen injector and has multiple nozzles at different angles. Each nozzle of the flow guide cap is electrically connected to the controller. The method can be executed by the controller in the hydrogen injection system. The controller can be implemented in software and / or hardware. The method specifically includes the following steps:

[0035] Step 110: Receive control signals.

[0036] For example, a hydrogen injection system is applied to an internal combustion engine to provide hydrogen fuel. The control signal can be transmitted from the internal combustion engine controller to a controller in the hydrogen injection system. The controller in the hydrogen injection system is communicatively connected to the internal combustion engine controller to receive the control signal. Specifically, the control signal can be a signal indicating whether hydrogen injection is complete or incomplete, or a control signal indicating the relationship between the internal combustion engine's torque and a preset value.

[0037] Step 120: Control the state of each nozzle of the guide cap according to the control signal to adjust the hydrogen injection angle of the hydrogen injector.

[0038] Specifically, if the control signal is a signal indicating that the internal combustion engine torque is greater than or less than a preset value (or the difference between the internal combustion engine torque and the preset value exceeds a preset range), then the state of each nozzle of the flow guide cap is changed sequentially to obtain the corresponding torque. Based on the relationship between the corresponding torque and the preset value, the nozzles that need to be opened among the nozzles of the flow guide cap are determined, i.e., the optimal hydrogen injection angle of the hydrogen injector is determined, thus extending the service life of the hydrogen injector. If the control signal is a signal indicating that the internal combustion engine torque is equal to the preset value (or the difference between the internal combustion engine torque and the preset value is within a preset range), then the current state (open or closed) of each nozzle of the flow guide cap remains unchanged.

[0039] It should be noted that the preset values ​​and preset ranges in this embodiment can be determined according to the actual control requirements of the hydrogen injection system, and are not limited here.

[0040] The control method for the hydrogen injection system provided in this embodiment controls the state of each nozzle of the guide cap according to the received control signal, thereby adjusting the hydrogen injection angle of the hydrogen injector. For example, if the control signal is a control signal indicating that the torque of the internal combustion engine is greater than or less than a preset value, then the state of each nozzle of the guide cap is changed sequentially to obtain the corresponding torque. Based on the relationship between the corresponding torque and the preset value, the nozzles that need to be opened among the nozzles of the guide cap are determined, that is, the optimal hydrogen injection angle of the hydrogen injector is determined, thereby improving control reliability.

[0041] Example 2

[0042] Figure 2 This is a flowchart of a control method for a hydrogen injection system provided in Embodiment 2 of the present invention. This embodiment is applicable to controlling hydrogen injection systems, etc. The hydrogen injection system includes: a hydrogen injector, a flow guide cap, and a controller. The flow guide cap is located at the front end of the hydrogen injector and has multiple nozzles at different angles. Each nozzle of the flow guide cap is electrically connected to the controller. The method can be executed by the controller in the hydrogen injection system. The controller can be implemented in software and / or hardware. The method specifically includes the following steps:

[0043] Step 210: Receive control signals.

[0044] For example, a hydrogen injection system is applied to an internal combustion engine to provide hydrogen fuel. The control signal can be transmitted from the internal combustion engine controller to a controller in the hydrogen injection system. The controller in the hydrogen injection system is communicatively connected to the internal combustion engine controller to receive the control signal. Specifically, the control signal can be a signal indicating whether hydrogen injection is complete or incomplete, or a control signal indicating the relationship between the internal combustion engine's torque and a preset value.

[0045] Step 220: When the control signal is the control signal corresponding to the internal combustion engine torque being greater than or less than the preset value, adjust the state of each nozzle of the guide cap to obtain the corresponding internal combustion engine torque.

[0046] In one implementation, the guide cap has N nozzles. When the control signal is a control signal corresponding to the internal combustion engine torque being greater than or less than a preset value, only one of the N nozzles on the guide cap is opened at any given time, and each nozzle completes one opening state. This allows the torque of the internal combustion engine corresponding to each nozzle opening to be obtained by data acquisition; the N nozzles correspond to N torques. Specifically, when one of the N nozzles is open and the others are closed, the hydrogen injector provides the internal combustion engine with hydrogen fuel injected at the angle corresponding to the opened nozzle. At this time, the torque of the internal combustion engine is the torque corresponding to the hydrogen injected by the opened nozzle. This process completes the opening and closing of all nozzles (the state of each nozzle can be adjusted sequentially according to the arrangement of each nozzle on the guide cap), thus obtaining the corresponding N torques.

[0047] For example, the nozzles of the guide cap are arranged in an array. The angle formed by the line connecting the center of the nozzle and the center of the guide cap with the bottom surface of the guide cap should be evenly distributed from 90° at 10° intervals down to 10° (i.e., the lowest angle of the nozzle is 10°). On each layer of nozzle cross-section (each layer can be understood as each ring), the entire circular cross-section should be evenly distributed at 30° intervals. The nozzle positions on each circular cross-section should be staggered with the upper and lower layers to achieve hydrogen injection angle control under various operating conditions.

[0048] Furthermore, depending on the arrangement of each nozzle on the guide cap, the order in which the states of each nozzle are adjusted can be as follows: When the control signal is the control signal corresponding to the internal combustion engine torque being greater than the preset value, the opening and closing of the guide cap nozzles is controlled by reducing the aforementioned angle by one, proceeding clockwise or counterclockwise through all nozzles on the cross section. After all nozzles on the cross section have been traversed, the opening and closing of the guide cap nozzles is controlled by reducing the aforementioned angle by one again. When the control signal is the control signal corresponding to the internal combustion engine torque being less than the preset value, the opening and closing of the guide cap nozzles is controlled by increasing the aforementioned angle by one, proceeding counterclockwise or clockwise through all nozzles on the cross section. After all nozzles on the cross section have been traversed, the opening and closing of the guide cap nozzles is controlled by increasing the aforementioned angle by one again.

[0049] Furthermore, when the control signal corresponds to the torque of the internal combustion engine being equal to a preset value, the state of each nozzle of the flow guide cap remains unchanged. If the control signal corresponds to the completion of hydrogen injection, all nozzles of the flow guide cap are closed; if the control signal corresponds to the incomplete hydrogen injection, the state of each nozzle of the flow guide cap remains unchanged. Before controlling the state of each nozzle of the flow guide cap according to the control signal, the initial state of the flow guide cap can be controlled so that the nozzle at the top of the flow guide cap is open and the other nozzles are closed.

[0050] Step 230: Determine the nozzles to be opened based on the torque of the corresponding internal combustion engine, specifically including:

[0051] Based on the torque of the corresponding internal combustion engine, if the absolute value of the difference between the kth torque and the preset value is the smallest among the N torques, then the nozzle corresponding to the kth torque is determined to be the nozzle at the optimal opening angle, and all other nozzles are closed.

[0052] In this embodiment, the k-th torque is the torque of the internal combustion engine obtained by injecting hydrogen fuel through the angle of one of the nozzles of the guide cap when the nozzle is open, thus providing hydrogen fuel to the internal combustion engine. The nozzle corresponding to the k-th torque is the open nozzle. This nozzle is determined to be the nozzle with the optimal hydrogen injection angle when the internal combustion engine torque is greater than or less than a preset value; that is, the nozzle that needs to be opened. Hydrogen gas is injected through this nozzle at the optimal angle to ensure optimal hydrogen injection. In one embodiment, when the hydrogen injector injects hydrogen, one of the nozzles of the guide cap is open, while the other nozzles are closed.

[0053] It should be noted that the specific values ​​of each parameter in this embodiment can be determined according to the actual control requirements of the hydrogen injection system, and are not limited here.

[0054] The control method for the hydrogen injection system provided in this embodiment adjusts the state of each nozzle of the guide cap when the control signal is a control signal corresponding to the torque of the internal combustion engine being greater than or less than a preset value, so as to obtain the corresponding torque of the internal combustion engine. Based on the corresponding torque of the internal combustion engine, the nozzles that need to be opened are determined, that is, the optimal hydrogen injection angle of the hydrogen injector is determined, so that the internal combustion engine can obtain the optimal hydrogen injection angle at different operating conditions, thereby obtaining the best internal combustion engine performance. Furthermore, when the control signal is the control signal corresponding to the completion of hydrogen injection, all nozzles of the guide cap are closed to isolate the hydrogen injector from the high temperature and high pressure environment inside the cylinder of the internal combustion engine, extend the service life of the hydrogen injector, and improve the reliability of the hydrogen injector.

[0055] Example 3

[0056] Figure 3 This is a control device for a hydrogen injection system provided in Embodiment 3 of the present invention. The control device for the hydrogen injection system can be integrated into the controller of the hydrogen injection system, see reference... Figure 3 The control device for the hydrogen injection system includes a signal receiving module 310 and a status control module 320. The signal receiving module 310 is used to receive control signals, and the status control module 320 is used to control the status of each nozzle of the guide cap according to the control signals, so as to adjust the hydrogen injection angle of the hydrogen injector.

[0057] Based on the above embodiments, the hydrogen injection system is used to provide hydrogen fuel to the internal combustion engine. The state control module 320 includes a state adjustment unit and a nozzle determination unit. The state adjustment unit is used to adjust the state of each nozzle of the guide cap to obtain the corresponding internal combustion engine torque when the control signal is a control signal corresponding to the torque of the internal combustion engine being greater than or less than a preset value. The nozzle determination unit is used to determine the nozzles that need to be opened according to the torque of the corresponding internal combustion engine.

[0058] In one embodiment, the guide cap has N nozzles. The state adjustment unit in the state control module 320 is specifically used to control that only one of the N nozzles of the guide cap is open at the same time, and to control each nozzle to complete one opening state, so as to obtain the torque of the internal combustion engine corresponding to each nozzle opening; the N nozzles correspond to N torques.

[0059] Optionally, the above-mentioned nozzle determination unit is specifically used to determine the nozzle corresponding to the k-th torque as the nozzle with the optimal opening angle based on the torque of the corresponding internal combustion engine. If the absolute value of the difference between the k-th torque and the preset value is the smallest among the N torques, then the nozzle corresponding to the k-th torque is determined to be the nozzle with the optimal opening angle, and all other nozzles are closed.

[0060] Optionally, the aforementioned state adjustment unit is specifically used to adjust the state of each nozzle sequentially according to the arrangement of each nozzle on the guide cap.

[0061] Optionally, the hydrogen injection system is used to provide hydrogen fuel to the internal combustion engine. Specifically, the state control module 320 is used to control the state of each nozzle of the guide cap to remain unchanged when the control signal is the control signal corresponding to the torque of the internal combustion engine being equal to the preset value.

[0062] Optionally, the state control module 320 includes: a first control unit and a second control unit; wherein, the first control unit is used to close all nozzles of the flow guide cap if the control signal is the control signal corresponding to the completion of hydrogen injection; and the second control unit is used to keep the state of each nozzle of the flow guide cap unchanged if the control signal is the control signal corresponding to the incomplete hydrogen injection.

[0063] Optionally, before controlling the state of each nozzle of the guide cap according to the control signal, the state control module 320 is also used to control the initial state of the guide cap to be that the nozzle at the top of the guide cap is open and the other nozzles are closed.

[0064] The control device for the hydrogen injection system provided in this embodiment belongs to the same inventive concept as the control method for the hydrogen injection system provided in any embodiment of the present invention, and has corresponding beneficial effects. For technical details not covered in this embodiment, please refer to the control method for the hydrogen injection system provided in any embodiment of the present invention.

[0065] Example 4

[0066] Figure 4 This is a schematic diagram of a hydrogen injection system provided in Embodiment 4 of the present invention. Figure 5 This is a schematic diagram of a flow guide cap provided in Embodiment 4 of the present invention. (Reference) Figure 4 and Figure 5 The hydrogen injection system includes: a hydrogen injector 10, a flow guide cap 20, and a controller 30. The flow guide cap 20 is located at the front end of the hydrogen injector 10 and has multiple nozzles at different angles. The flow guide cap 20 is electrically connected to the controller 30. The control method of the hydrogen injection system as described in any embodiment of the present invention is executed by the controller 30.

[0067] Specifically, the hydrogen injector is one of the key components of the hydrogen injection system in an internal combustion engine. A reliable and stable hydrogen injector ensures the smooth and reliable operation of the internal combustion engine. The hydrogen injector can change the injection angle to allow the hydrogen jet to enter the cylinder of the internal combustion engine at different angles, thus resulting in different mixing effects of the in-cylinder mixture. By changing the mixing effect of the in-cylinder mixture, it is possible to reduce knocking and abnormal combustion phenomena in the hydrogen internal combustion engine under different operating conditions and improve the performance of the internal combustion engine. In this embodiment, the controller of the hydrogen injection system controls the state of each nozzle of the guide cap to achieve variable hydrogen injection angle, so as to meet the optimal hydrogen injection angle of the internal combustion engine under different operating conditions and avoid damage to the hydrogen injector caused by the high temperature and high pressure environment inside the cylinder, thereby obtaining the best mixture effect, extending the service life of the hydrogen injector, and improving engine performance.

[0068] Furthermore, the guide cap is installed at the front of the hydrogen injector and covers the nozzle of the hydrogen injector. The fit should be an interference fit to ensure that the nozzle of the hydrogen injector will not fall off under high temperature and high pressure conditions. Related sensors are installed in the guide cap, and the controller in the hydrogen injection system has a data line to control the opening and closing of the guide cap's nozzle. The controller in the hydrogen injection system can adjust the nozzle state of the guide cap to change the hydrogen injection angle of the hydrogen injector. At the same time, the cavity formed by the guide cap can effectively prevent the hydrogen injector from being affected by the high pressure environment inside the internal combustion engine cylinder. The guide cap has several nozzles arranged in an array, and the nozzles open and close under the control of the controller in the hydrogen injection system.

[0069] Optionally, the nozzle is a circular nozzle with a diameter of 0.5mm-1mm. This setting prevents insufficient hydrogen flow from the hydrogen injector due to an excessively small nozzle diameter (less than 0.5mm) and insufficient hydrogen injection pressure from an excessively large nozzle diameter (greater than 1mm), thus ensuring the hydrogen injection flow rate and velocity of the hydrogen injector.

[0070] Furthermore, the angle formed by the line connecting the center of the nozzle and the center of the guide cap sphere with the bottom surface of the guide cap should be evenly distributed from 90° at 10° intervals down to a minimum angle of 10° (i.e., the lowest nozzle angle is 10°). On each nozzle cross-section, the entire circular cross-section should be evenly distributed at 30° intervals, and the nozzle positions on each circular cross-section should be staggered with the upper and lower layers to achieve hydrogen injection angle control under various operating conditions. The hydrogen injector injects hydrogen into the cylinders of the internal combustion engine through the nozzles opened in the guide cap. The internal combustion engine cylinders are equipped with temperature and pressure sensors. The controller in the hydrogen injection system communicates with the temperature and pressure sensors to obtain the cylinder temperature and pressure. The controller in the hydrogen injection system is also connected to the internal combustion engine controller to transmit the acquired temperature and pressure data. Based on the temperature and pressure, the internal combustion engine controller determines whether knocking has occurred in the internal combustion engine and whether the hydrogen injection angle of the hydrogen injector is optimal, generating a corresponding control signal and transmitting it to the controller in the hydrogen injection system. The internal combustion engine controller communicates with the hydrogen injector and the internal combustion engine to control the start and stop of the hydrogen injector and receive piston stroke information from the internal combustion engine. Based on the received piston stroke information, the internal combustion engine controller determines whether the hydrogen injector has completed hydrogen injection and generates a corresponding control signal. This control signal enables the controller in the hydrogen injection system to either close all nozzles of the guide cap (indicating that the hydrogen injector has completed hydrogen injection) or keep the state of each nozzle unchanged (indicating that the hydrogen injector has not completed hydrogen injection).

[0071] It should be noted that the diameter range of the nozzle in this embodiment is only for illustrative purposes and can be determined according to the actual control requirements of the hydrogen injection system, and is not limited here.

[0072] The hydrogen injection system provided in this embodiment belongs to the same inventive concept as the control method of the hydrogen injection system provided in any embodiment of the present invention, and has corresponding beneficial effects. For technical details not covered in this embodiment, please refer to the control method of the hydrogen injection system provided in any embodiment of the present invention.

[0073] Example 5

[0074] Figure 6 This is a schematic diagram of the structure of a terminal provided in Embodiment 5 of the present invention. Figure 6 A block diagram of an exemplary device 412 suitable for implementing embodiments of the present invention is shown. Figure 6 The device 412 shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of the present invention.

[0075] like Figure 6 As shown, device 412 is represented as a general-purpose device. Components of device 412 may include, but are not limited to: one or more processors 416, storage device 428, and bus 418 connecting different system components (including storage device 428 and processor 416).

[0076] Bus 418 represents one or more of several bus architectures, including a memory device bus or memory device controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of the various bus architectures. Examples of these architectures include, but are not limited to, the Industry Subversive Alliance (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnect (PCI) bus.

[0077] Device 412 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by device 412, including volatile and non-volatile media, removable and non-removable media.

[0078] Storage device 428 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 430 and / or cache memory 432. Device 412 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 434 may be used to read and write non-removable, non-volatile magnetic media (… Figure 6 Not shown; usually referred to as a "hard drive"). Although Figure 6 As not shown, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk") and an optical disc drive for reading and writing to a removable non-volatile optical disc, such as a Compact Disc Read-Only Memory (CD-ROM), a Digital Video Disc Read-Only Memory (DVD-ROM), or other optical media. In these cases, each drive may be connected to bus 418 via one or more data media interfaces. Storage device 428 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of the present invention.

[0079] A program / utility 440 having a set (at least one) of program modules 442 may be stored in, for example, a storage device 428. Such program modules 442 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. Program modules 442 typically perform the functions and / or methods described in the embodiments of the present invention.

[0080] Device 412 can also communicate with one or more external devices 414 (e.g., keyboard, pointing terminal, display 424, etc.), and with one or more terminals that enable a user to interact with device 412, and / or with any terminal that enables device 412 to communicate with one or more other computing terminals (e.g., network card, modem, etc.). This communication can be performed via input / output (I / O) interface 422. Furthermore, device 412 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 420. Figure 6As shown, network adapter 420 communicates with other modules of device 412 via bus 418. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with device 412, including but not limited to: microcode, terminal drivers, redundant processors, external disk drive arrays, Redundant Arrays of Independent Disks (RAID) systems, tape drives, and data backup storage systems.

[0081] The processor 416 (which can be considered as a controller in the hydrogen injection system) executes various functional applications and data processing by running a program stored in the storage device 428. For example, it implements the control method of the hydrogen injection system provided in the embodiments of the present invention. The hydrogen injection system includes: a hydrogen injector, a flow guide cap, and a controller. The flow guide cap is located at the front end of the hydrogen injector and has multiple nozzles at different angles. Each nozzle of the flow guide cap is electrically connected to the controller. The method includes:

[0082] Receive control signals;

[0083] The state of each nozzle of the guide cap is controlled according to the control signal to adjust the hydrogen injection angle of the hydrogen injector.

[0084] Example 6

[0085] Embodiment 6 of the present invention provides a computer-readable storage medium storing a computer program thereon. When executed by a controller, the program implements a control method for a hydrogen injection system as provided in this embodiment of the present invention. The hydrogen injection system includes: a hydrogen injector, a flow guide cap, and a controller. The flow guide cap is located at the front end of the hydrogen injector and has multiple nozzles at different angles. Each nozzle of the flow guide cap is electrically connected to the controller. The method includes:

[0086] Receive control signals;

[0087] The state of each nozzle of the guide cap is controlled according to the control signal to adjust the hydrogen injection angle of the hydrogen injector.

[0088] The computer storage medium of this invention can be any combination of one or more computer-readable media. A computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0089] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, capable of sending, propagating, or transmitting programs for use by or in connection with an instruction execution system, apparatus, or device.

[0090] The program code contained on a computer-readable medium may be transmitted using any suitable medium, including—but not limited to—wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0091] Computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or terminal. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0092] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, rearrangements, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A control method for a hydrogen injection system, characterized in that, The hydrogen injection system includes: a hydrogen injector, a flow guide cap, and a controller. The flow guide cap is located at the front end of the hydrogen injector and has multiple nozzles at different angles. Each nozzle of the flow guide cap is electrically connected to the controller. The control method is executed by the controller and includes: Receive control signals; According to the control signal, the state of each nozzle of the guide cap is controlled to adjust the hydrogen injection angle of the hydrogen injector; The hydrogen injection system is used to provide hydrogen fuel to the internal combustion engine. The step of controlling the state of each nozzle of the guide cap according to the control signal includes: when the control signal is a control signal corresponding to the torque of the internal combustion engine being greater than or less than a preset value, adjusting the state of each nozzle of the guide cap to obtain the corresponding torque of the internal combustion engine; and determining the nozzle to be opened according to the corresponding torque of the internal combustion engine. The flow guide cap has N nozzles. Adjusting the state of each nozzle of the flow guide cap includes: controlling only one of the N nozzles of the flow guide cap to open at the same time, and controlling each nozzle to complete one opening state, so as to obtain the torque of the internal combustion engine corresponding to each nozzle opening; N nozzles correspond to N torques. The step of determining the nozzle to be opened based on the torque of the corresponding internal combustion engine includes: if the absolute value of the difference between the kth torque and the preset value is the smallest among the N torques, then the nozzle corresponding to the kth torque is determined to be the nozzle at the optimal angle to be opened, and all other nozzles are closed.

2. The control method for the hydrogen injection system according to claim 1, characterized in that, Adjusting the state of each nozzle of the flow guide cap includes: Adjust the state of each nozzle in turn according to the arrangement of each nozzle on the guide cap.

3. The control method for the hydrogen injection system according to claim 1, characterized in that, The hydrogen injection system is used to provide hydrogen fuel to the internal combustion engine. The control of the state of each nozzle of the guide cap according to the control signal includes: When the control signal is the control signal corresponding to the torque of the internal combustion engine being equal to a preset value, the state of each nozzle of the guide cap remains unchanged.

4. The control method for the hydrogen injection system according to claim 1, characterized in that, The step of controlling the state of each nozzle of the flow guide cap according to the control signal includes: If the control signal is the control signal corresponding to the completion of hydrogen injection, then all nozzles of the flow guide cap are closed. If the control signal is the control signal corresponding to the incomplete hydrogen injection, then the state of each nozzle of the flow guide cap remains unchanged.

5. The control method for the hydrogen injection system according to claim 1, characterized in that, Before controlling the state of each nozzle of the flow guide cap according to the control signal, the process includes: The initial state of the flow deflector is controlled so that the nozzle at the top of the flow deflector is open, and the other nozzles are closed.

6. A hydrogen injection system, characterized in that, include: The system comprises a hydrogen injector, a flow guide cap, and a controller. The flow guide cap is located at the front end of the hydrogen injector and has multiple nozzles at different angles. Each nozzle of the flow guide cap is electrically connected to the controller. The control method of the hydrogen injection system as described in any one of claims 1-5 is executed by the controller.

7. The hydrogen injection system according to claim 6, characterized in that, The nozzle is a circular nozzle with a diameter of 0.5mm-1mm.

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