Multi-redundancy automatic temperature flow electromagnetic valve control method and system

Abstract

The invention belongs to the technical field of airborne electromechanical control, and discloses a multi-redundancy automatic temperature flow electromagnetic valve control method and system.The control method comprises the steps that the hydraulic pressure and the current temperature of each hydraulic sub-system in a hydraulic system are collected in real time; and according to the hydraulic pressure and the current temperature, a warm flow electromagnetic valve in each sub hydraulic system is automatically controlled through first temperature judgment logic, pressure control logic and second temperature control logic. The control system comprises an acquisition module, a data extraction module and a plurality of temperature flow electromagnetic valve control modules. Each temperature flow electromagnetic valve control module is connected with a temperature flow electromagnetic valve. The data extraction module is connected with each temperature flow electromagnetic valve control module, and the temperature flow electromagnetic valve control module is connected with the control end of the temperature flow electromagnetic valve. According to the control method and system, the energy consumption of the system can be reduced, and the flight safety is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of airborne electromechanical control, and relates to a redundant automatic temperature flow solenoid valve control method and system. Background Art

[0002] Multi-engine transport aircraft, such as two-engine or four-engine transport aircraft, are generally equipped with 2 or 4 temperature solenoid valves. Each temperature solenoid valve controls the liquid flow direction, pressure and flow of one hydraulic system in the complex hydraulic system. At the same time, it is also necessary to avoid the effects of overheating or overcooling of the hydraulic system.

[0003] At present, the traditional control method of the warm flow solenoid valve on multi-engine transport aircraft is: the pilot manually controls the start or close of the corresponding warm flow solenoid valve according to the temperature information displayed on the indicator of each hydraulic system of the aircraft. For example: when the indicator shows that the temperature of a certain hydraulic system is lower than expected, the pilot will manually start the corresponding warm flow solenoid valve to heat the temperature; and when the indicator shows that the temperature of a certain hydraulic system is higher than expected, the pilot will manually close the corresponding warm flow solenoid valve to avoid continued heating to prevent overheating. This manual control method often increases the workload of the pilot, especially in low temperature scenarios. The pilot may need to continue to pay attention to and frequently operate the relevant warm flow solenoid valve, which reduces the efficiency of the pilot in performing flight missions and reduces flight safety. Summary of the invention

[0004] In order to solve the technical problem of increasing pilot workload and safety risk caused by manual control of temperature solenoid valves, the present invention discloses a redundant automatic temperature flow solenoid valve control method, which includes the following steps:

[0005] S4, real-time acquisition of the hydraulic pressure and current temperature of each sub-hydraulic system in the hydraulic system;

[0006] S5. Automatically control the temperature flow solenoid valve in each of the sub-hydraulic systems according to the hydraulic pressure and the current temperature through the first temperature judgment logic, the pressure control logic and the second temperature control logic.

[0007] Furthermore, in an improved embodiment of the above-mentioned redundant automatic warm flow solenoid valve control method, the control method further includes:

[0008] S1. Set a first temperature threshold interval. When the current temperature is outside the first temperature threshold interval, output a temperature flow solenoid valve closing instruction; when the current temperature is within the first temperature threshold interval, output a hydraulic pressure logic judgment instruction to construct a first temperature judgment logic.

[0009] Furthermore, in an improved embodiment of the above-mentioned redundant automatic warm flow solenoid valve control method, the control method further includes:

[0010] S2. Given a low-pressure threshold, the hydraulic pressure is obtained according to the hydraulic pressure logic judgment instruction, and the hydraulic pressure is compared with the low-pressure threshold. If the hydraulic pressure is less than or equal to the low-pressure threshold, a pressure shortage prompt signal is reported; if the hydraulic pressure is greater than the low-pressure threshold, a high-temperature logic judgment instruction is output to construct a pressure control logic.

[0011] Furthermore, in an improved embodiment of the above-mentioned redundant automatic warm flow solenoid valve control method, the control method further includes:

[0012] S3. Set a second temperature threshold, and judge the current temperature and the second temperature threshold according to the high temperature logic judgment instruction. If the current temperature is greater than or equal to the second temperature threshold, output a temperature flow solenoid valve closing instruction; if the current temperature is less than the second temperature threshold, output an electric pump opening instruction, wherein the second temperature threshold is greater than the maximum temperature value in the first temperature threshold range, and construct a second temperature control logic.

[0013] An embodiment of the present invention also provides a redundant automatic warm flow solenoid valve control system, the control system comprising an acquisition module, a data extraction module and multiple warm flow solenoid valve control modules, each of the warm flow solenoid valve control modules is respectively connected to a warm flow solenoid valve, the acquisition module is used to collect the hydraulic pressure and current temperature of each sub-hydraulic system, and the output end of the acquisition module is connected to the input end of the data extraction module.

[0014] The data extraction module is connected to each of the warm flow solenoid valve control modules. The warm flow solenoid valve control module uses the first temperature judgment logic, pressure control logic and second temperature control logic to output the warm flow solenoid valve control signal based on the hydraulic pressure and current temperature of the corresponding sub-hydraulic system extracted from the data extraction module.

[0015] Furthermore, the warm flow solenoid valve control module includes a first temperature judgment module, a pressure judgment module, a second temperature judgment module and a warm flow solenoid valve control instruction output module, and the output end of the warm flow solenoid valve control instruction output module is connected to the warm flow solenoid valve control end.

[0016] The input end of the first temperature judgment module is connected to the data extraction module, and the output end is connected to the pressure judgment module and the temperature flow solenoid valve control instruction output module. The input end of the pressure judgment module is connected to the first temperature judgment module and the data extraction module, and the output end is connected to the second temperature judgment module and the host computer. The input end of the second temperature judgment module is also connected to the data extraction module, and the output end is connected to the temperature flow solenoid valve control instruction output module.

[0017] Furthermore, there are 2 to 4 warm flow solenoid valve control modules, and each of the warm flow solenoid valve control modules is connected to one of the sub-hydraulic systems in the hydraulic system via one of the warm flow solenoid valves.

[0018] In an improved embodiment of the above-mentioned redundant automatic temperature flow solenoid valve control system, the control system also includes a power supply module, the input end of the power supply module is connected to the on-board power supply, and the output end is connected to the acquisition module, the data extraction module and each of the temperature flow solenoid valve control modules, and the power supply module supplies power to the acquisition module, the data extraction module and the temperature flow solenoid valve control module.

[0019] Compared with the prior art, the beneficial effects that can be achieved by at least one of the above-mentioned technical solutions adopted in the embodiments of this specification include at least the following: the control method and system of the warm flow solenoid valve of the present invention, on the one hand, automatically controls the opening and closing of the warm flow solenoid valve, so that the pilot does not need to control the warm flow solenoid valve during the mission execution, thereby significantly reducing the pilot's workload; on the other hand, through the design of the first temperature judgment logic, the pressure control logic and the second temperature control logic, the oil temperature of the hydraulic system can be more accurately controlled within a safe range that is neither too low nor too hot, thereby improving the safety of the system; thirdly, by designing a corresponding warm flow solenoid valve control module for the warm flow solenoid valve in each sub-hydraulic system, a single point situation can be avoided, and when a single power supply, input information source, control function, etc. fails or fails, the entire hydraulic system will not completely lose the control function of the warm flow solenoid valve, thereby having high safety and increasing the safety of the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural diagram of the redundant automatic temperature flow solenoid valve control disclosed in an embodiment of the present invention;

[0022] Figure 2 The execution flow of the first temperature judgment logic, the pressure control logic and the second temperature control logic disclosed in the embodiment of the present invention;

[0023] Among them, 101, acquisition module; 102, data extraction module; 103, temperature flow solenoid valve control module; 104, power supply module; 1, first sub-hydraulic system; 2, second sub-hydraulic system; 11, first temperature flow solenoid valve; 12, second temperature flow solenoid valve; 111, first hydraulic pressure; 112, first current temperature; 121, second hydraulic pressure; 122, second current temperature. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0025] The following describes the implementation methods of the present application through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and the features of the embodiments can be combined with each other in the absence of conflict. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0026] The present invention discloses a redundant automatic temperature flow solenoid valve control method, the control method comprising the following steps:

[0027] S4, real-time acquisition of the hydraulic pressure and current temperature of each sub-hydraulic system in the hydraulic system;

[0028] S5. Automatically control the temperature flow solenoid valve in each of the sub-hydraulic systems according to the hydraulic pressure and the current temperature through the first temperature judgment logic, the pressure control logic and the second temperature control logic.

[0029] Further, see Figure 2 As shown, in an improved embodiment of the above-mentioned redundant automatic warm flow solenoid valve control method, the control method further includes:

[0030] S1. Set a first temperature threshold interval. When the current temperature is outside the first temperature threshold interval, output a temperature flow solenoid valve closing instruction; when the current temperature is within the first temperature threshold interval, output a hydraulic pressure logic judgment instruction to construct a first temperature judgment logic.

[0031] Further, see Figure 2 As shown, in an improved embodiment of the above-mentioned redundant automatic warm flow solenoid valve control method, the control method further includes:

[0032] S2. Given a low-pressure threshold, the hydraulic pressure is obtained according to the hydraulic pressure logic judgment instruction, and the hydraulic pressure is compared with the low-pressure threshold. If the hydraulic pressure is less than or equal to the low-pressure threshold, a pressure shortage prompt signal is reported; if the hydraulic pressure is greater than the low-pressure threshold, a high-temperature logic judgment instruction is output to construct a pressure control logic.

[0033] Further, see Figure 2 As shown, in an improved embodiment of the above-mentioned redundant automatic warm flow solenoid valve control method, the control method further includes:

[0034] S3. Set a second temperature threshold, and judge the current temperature and the second temperature threshold according to the high-temperature logic judgment instruction. If the current temperature is greater than or equal to the second temperature threshold, output a temperature flow solenoid valve closing instruction; if the current temperature is less than the second temperature threshold, output an electric pump opening instruction, wherein the second temperature threshold is greater than the maximum temperature value in the first temperature threshold range, and construct a second temperature control logic.

[0035] Based on the same inventive concept, an embodiment of the present invention also provides a redundancy automatic warm flow solenoid valve control system, as described in the following embodiments. The redundancy automatic warm flow solenoid valve control system is used to implement the above-mentioned redundancy automatic warm flow solenoid valve control method. As used below, the term "unit" or "module" can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceived.

[0036] See also Figure 1 As shown, a redundant automatic warm flow solenoid valve control system, the control system includes an acquisition module 101, a data extraction module 102 and multiple warm flow solenoid valve control modules 103, each of the warm flow solenoid valve control modules 103 is respectively connected to a warm flow solenoid valve, the acquisition module 101 is used to collect the hydraulic pressure and current temperature of each sub-hydraulic system, and the output end of the acquisition module 101 is connected to the input end of the data extraction module 102.

[0037] The data extraction module 102 is connected to each of the warm flow solenoid valve control modules 103. The warm flow solenoid valve control module 103 outputs a warm flow solenoid valve control signal based on the hydraulic pressure and current temperature of the corresponding sub-hydraulic system extracted from the data extraction module 102, using the first temperature judgment logic, the pressure control logic and the second temperature control logic.

[0038] Specifically, the hydraulic system can be a complex system with double redundancy, triple redundancy, quadruple redundancy or even high redundancy, and the corresponding warm flow solenoid valve control modules 103 also have 2 to 4, and each warm flow solenoid valve control module 103 is connected to a sub-hydraulic system in the hydraulic system through a warm flow solenoid valve. Figure 1 As shown, when the hydraulic system is a dual-redundancy system, there are two sub-hydraulic systems, namely, a first sub-hydraulic system 1 and a second sub-hydraulic system 2. The corresponding electric pump includes a first warm flow solenoid valve 11 connected to the first sub-hydraulic system 1 and a second warm flow solenoid valve 12 connected to the second sub-hydraulic system 2. The corresponding hydraulic pressures include a first hydraulic pressure 111 and a first current temperature 112 of the first sub-hydraulic system 1, and a second hydraulic pressure 121 and a second current temperature 122 of the second sub-hydraulic system 2.

[0039] Furthermore, the warm flow solenoid valve control module 103 includes a first temperature judgment module, a pressure judgment module, a second temperature judgment module and a warm flow solenoid valve control instruction output module, and the output end of the warm flow solenoid valve control instruction output module is connected to the warm flow solenoid valve control end.

[0040] The input end of the first temperature judgment module is connected to the data extraction module, and the output end is connected to the pressure judgment module and the temperature flow solenoid valve control instruction output module. The input end of the pressure judgment module is connected to the first temperature judgment module and the data extraction module, and the output end is connected to the second temperature judgment module and the host computer. The input end of the second temperature judgment module is also connected to the data extraction module, and the output end is connected to the temperature flow solenoid valve control instruction output module.

[0041] In an improved embodiment of the above-mentioned redundant automatic warm flow solenoid valve control system, the control system also includes a power supply module 104, the input end of the power supply module 104 is connected to the on-board power supply, and the output end is connected to the acquisition module 101, the data extraction module 102 and each of the warm flow solenoid valve control modules 103, and the power supply module 104 supplies power to the acquisition module 104, the data extraction module 102 and the warm flow solenoid valve control module 103.

[0042] The warm flow solenoid valve control method and system of the present invention, on the one hand, automatically controls the opening and closing of the warm flow solenoid valve, so that the pilot does not need to control the warm flow solenoid valve during the mission execution, thereby significantly reducing the pilot's workload; on the other hand, through the design of the first temperature judgment logic, the pressure control logic and the second temperature control logic, the oil temperature of the hydraulic system can be more accurately controlled within a safe range that is neither too low nor too hot, thereby improving the safety of the system; thirdly, by designing a corresponding warm flow solenoid valve control module for the warm flow solenoid valve in each sub-hydraulic system, a single point situation can be avoided, and the entire hydraulic system will not completely lose the warm flow solenoid valve control function when a single power supply, input information source, control function, etc. fails or fails, thereby having high safety and increasing the safety of the aircraft.

[0043] In this embodiment, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, any of the above-mentioned redundant automatic temperature flow solenoid valve control methods is implemented.

[0044] Specifically, the computer device may be a computer terminal, a server or a similar computing device.

[0045] In this embodiment, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program for executing any of the above-mentioned redundant automatic temperature flow solenoid valve control methods.

[0046] Specifically, computer-readable storage media include permanent and non-permanent, removable and non-removable media that can store information by any method or technology. Information can be computer-readable instructions, data structures, program modules or other data. Examples of computer-readable storage media 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, Flash, NVRAM or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable storage media does not include temporary computer-readable media (transitory media), such as modulated data signals and carrier waves.

[0047] Obviously, those skilled in the art should understand that the modules or steps of the above-mentioned embodiments of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, and optionally, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. In this way, the embodiments of the present invention are not limited to any specific combination of hardware and software.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the embodiments of the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A redundant automatic temperature flow solenoid valve control method, characterized in that: Control methods include: Real-time acquisition of hydraulic pressure and current temperature of each sub-hydraulic system in the hydraulic system; According to the hydraulic pressure and the current temperature, the temperature flow solenoid valve in each of the sub-hydraulic systems is automatically controlled by the first temperature judgment logic, the pressure control logic and the second temperature control logic.

2. The redundant automatic temperature flow solenoid valve control method according to claim 1, characterized in that: The control method further comprises: A first temperature threshold interval is set. When the current temperature is outside the first temperature threshold interval, a temperature flow solenoid valve closing instruction is output; when the current temperature is within the first temperature threshold interval, a hydraulic pressure logic judgment instruction is output to construct a first temperature judgment logic.

3. The redundant automatic temperature flow solenoid valve control method according to claim 2, characterized in that: The control method further comprises: Given a low-pressure threshold, the hydraulic pressure is obtained according to the hydraulic pressure logic judgment instruction, and the hydraulic pressure is compared with the low-pressure threshold. If the hydraulic pressure is less than or equal to the low-pressure threshold, a pressure shortage prompt signal is reported; if the hydraulic pressure is greater than the low-pressure threshold, a high-temperature logic judgment instruction is output to construct a pressure control logic.

4. The redundant automatic warm flow solenoid valve control method according to claim 3, characterized in that: The control method further comprises: A second temperature threshold is set, and the current temperature and the second temperature threshold are judged according to the high temperature logic judgment instruction. If the current temperature is greater than or equal to the second temperature threshold, a temperature flow solenoid valve closing instruction is output; if the current temperature is less than the second temperature threshold, an electric pump opening instruction is output, wherein the second temperature threshold is greater than the maximum temperature value in the first temperature threshold range, and a second temperature control logic is constructed.

5. A redundant automatic temperature flow solenoid valve control system, characterized in that: The control system includes a collection module, a data extraction module and a plurality of temperature flow solenoid valve control modules, each of the temperature flow solenoid valve control modules is respectively connected to a temperature flow solenoid valve, the collection module is used to collect the hydraulic pressure and current temperature of each sub-hydraulic system, and the output end of the collection module is connected to the input end of the data extraction module; The data extraction module is connected to each of the warm flow solenoid valve control modules. The warm flow solenoid valve control module uses the first temperature judgment logic, pressure control logic and second temperature control logic to output the warm flow solenoid valve control signal based on the hydraulic pressure and current temperature of the corresponding sub-hydraulic system extracted from the data extraction module.

6. The redundant automatic temperature flow solenoid valve control system according to claim 5, characterized in that: The warm flow solenoid valve control module includes a first temperature judgment module, a pressure judgment module, a second temperature judgment module and a warm flow solenoid valve control instruction output module, and the output end of the warm flow solenoid valve control instruction output module is connected to the warm flow solenoid valve control end; The input end of the first temperature judgment module is connected to the data extraction module, and the output end is connected to the pressure judgment module and the temperature flow solenoid valve control instruction output module; The input end of the pressure judgment module is connected to the first temperature judgment module and the data extraction module, and the output end is connected to the second temperature judgment module and the host computer; The input end of the second temperature judgment module is also connected to the data extraction module, and the output end is connected to the temperature flow solenoid valve control instruction output module.

7. The redundant automatic temperature flow solenoid valve control system according to claim 5, characterized in that: There are 2 to 4 warm flow solenoid valve control modules, and each of the warm flow solenoid valve control modules is connected to one of the sub-hydraulic systems in the hydraulic system via one of the warm flow solenoid valves.

8. The redundant automatic temperature flow solenoid valve control system according to claim 5, characterized in that: The control system also includes a power supply module, the input end of the power supply module is connected to the on-board power supply, and the output end is connected to the acquisition module, the data extraction module and each of the warm flow solenoid valve control modules. The power supply module supplies power to the acquisition module, the data extraction module and the warm flow solenoid valve control module.

Images