CN113404677B - Control method and device for air compressor of motor train unit and terminal equipment - Google Patents
Control method and device for air compressor of motor train unit and terminal equipment Download PDFInfo
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- CN113404677B CN113404677B CN202110528774.1A CN202110528774A CN113404677B CN 113404677 B CN113404677 B CN 113404677B CN 202110528774 A CN202110528774 A CN 202110528774A CN 113404677 B CN113404677 B CN 113404677B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
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- General Engineering & Computer Science (AREA)
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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention is suitable for the technical field of railway vehicle control, and provides a control method, a device and terminal equipment of an air compressor of a motor train unit, wherein a screw air compressor and a piston air compressor are combined and arranged on the motor train unit, and then the screw air compressor and the piston air compressor are alternately arranged as a host according to a preset time interval; when wind pressure is less than first wind pressure in the reservoir, control the host computer starts, works as when the wind pressure is less than the second wind pressure, continues to control another air compressor and starts to can make air compressor cooperation work, neither extravagant energy, also can not cause the impact to power supply network or other equipment owing to restart piston air compressor many times for two air compressor of control reach more effective operating condition.
Description
Technical Field
The invention belongs to the technical field of railway vehicle control, and particularly relates to a control method and device for an air compressor of a motor train unit and terminal equipment.
Background
The rail vehicle often needs to use compressed air to control the whole vehicle, so an air compressor is required to be arranged on the motor train unit to be used as an air source of the vehicle, compressed air is provided for various wind equipment, and an air cylinder is arranged to be used as a storage device of the compressed air.
Air compressors are currently largely classified into screw type air compressors and piston type air compressors. The screw air compressor can only be used in a continuous operating state, i.e. always supplies air to the vehicle after starting. The piston type air compressor can be started and stopped continuously, namely when the compressed air stored in the air cylinder is insufficient, the piston type air compressor is started to blow air for the vehicle until the amount of the compressed air in the air cylinder reaches a certain standard. However, the screw air compressor is adopted to supply air for the air cylinder all the time, so that the wind energy utilization rate is low, fuel oil waste can be caused, the piston air compressor can effectively utilize energy sources, the requirement of intelligently controlling the vehicle is met, but the piston air compressor is repeatedly started to have very large starting current, the impact on a power supply system is large, the stability of the power supply system is poor, other loads in the power supply network are influenced, and the service life of power supply equipment is influenced.
Disclosure of Invention
In view of this, the embodiment of the invention provides a control method, a control device and a control terminal device for an air compressor of a motor train unit, and aims to solve the problems that in the prior art, the wind energy utilization rate is low and fuel oil is wasted due to the fact that a screw type air compressor is used for supplying air to an air cylinder, and the system stability is poor due to the fact that a piston type air compressor is used for supplying air to the air cylinder.
In order to achieve the above object, a first aspect of the embodiments of the present invention provides a method for controlling an air compressor of a motor train unit, where the motor train unit is provided with a screw air compressor and a piston air compressor, and the method for controlling the air compressor of the motor train unit comprises:
alternately arranging the screw air compressor and the piston air compressor as main machines according to a preset time interval;
when the wind pressure in the air cylinder is smaller than a first wind pressure, controlling the host to start, and when the wind pressure is smaller than a second wind pressure, continuously controlling another air compressor to start; the first wind pressure is greater than the second wind pressure.
As another embodiment of the present application, when the wind pressure in the air cylinder is smaller than the first wind pressure, the host is controlled to start, and when the wind pressure is smaller than the second wind pressure, the host continues to control the start of another air compressor, including:
when the screw air compressor is a host machine, controlling the screw air compressor to start when the air pressure in an air cylinder is smaller than a first air pressure, and continuously controlling the piston air compressor to start when the air pressure is smaller than a second air pressure;
when the wind pressure is less than first wind pressure in the reservoir, control the host computer and start, when the wind pressure is less than the second wind pressure, after continuing to control another air compressor and start, still include:
and when the wind pressure is greater than or equal to a third wind pressure, controlling the screw air compressor and the piston air compressor to stop supplying wind, wherein the third wind pressure is greater than the second wind pressure.
As another embodiment of the present application, a screw air compressor de-airing comprises:
and controlling the screw air compressor to stop blowing air outwards, and operating the screw air compressor motor.
As another embodiment of the present application, when the wind pressure in the air cylinder is smaller than the first wind pressure, the host is controlled to start, and when the wind pressure is smaller than the second wind pressure, the host continues to control the start of another air compressor, including:
when the piston type air compressor is a host machine, controlling the screw type air compressor to start when the air pressure in an air cylinder is smaller than a first air pressure, and continuously controlling the screw type air compressor to start when the air pressure is smaller than a second air pressure;
when the wind pressure is less than first wind pressure in the reservoir, control the host computer and start, when the wind pressure is less than the second wind pressure, after continuing to control another air compressor and start, still include:
when the wind pressure is larger than or equal to a third wind pressure, the piston air compressor is controlled to stop supplying wind, whether the wind supply of the screw air compressor is stopped is determined according to the running time of the screw air compressor and the condition that the wind pressure is smaller than the second wind pressure in the running time of the screw air compressor, and the third wind pressure is larger than the second wind pressure.
As another embodiment of the present application, when the wind pressure is less than a second wind pressure, continuously controlling the screw air compressor to start includes:
when the wind pressure is smaller than the second wind pressure, detecting whether the frequency that the wind pressure is smaller than the second wind pressure after the motor train unit is electrified is a preset frequency;
and when the number of times that the wind pressure is smaller than the second wind pressure after the motor train unit is electrified is a preset number, delaying the first preset time and then continuously controlling the screw type air compressor to start.
As another embodiment of the present application, after the continuously controlling the start of the screw air compressor when the wind pressure is less than the second wind pressure, the method further includes:
timing an operating time of the screw air compressor.
As another embodiment of the present application, the determining whether to stop the air supply of the screw air compressor according to the operation time of the screw air compressor and whether the wind pressure less than the second wind pressure occurs during the operation time of the screw air compressor includes:
when the running time of the screw air compressor is not longer than a second preset time and the condition that the air pressure is smaller than a second air pressure does not occur, controlling the screw air compressor to stop air supply;
when screw air compressor's operating time is not greater than the second and presets the time, the condition that the wind pressure is less than the second wind pressure appears to the wind pressure is less than the moment of second wind pressure and times again to appear, and keeps screw air compressor externally supplies wind until the condition that the wind pressure is less than the second wind pressure does not appear in the second presets the time again, perhaps reaches when the second presets the time that the time corresponds, controls screw air compressor stops the air feed.
The second aspect of the embodiment of the invention provides a control device of an air compressor of a motor train unit, wherein the motor train unit is provided with a screw type air compressor and a piston type air compressor, and the control device of the air compressor of the motor train unit comprises:
the setting module is used for alternately setting the screw air compressor and the piston air compressor as main machines according to a preset time interval;
the control module is used for controlling the host to start when the air pressure in the air cylinder is smaller than a first air pressure, and continuously controlling the other air compressor to start when the air pressure is smaller than a second air pressure; the first wind pressure is greater than the second wind pressure.
A third aspect of an embodiment of the present invention provides a terminal device, including: the control method comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the computer program to realize the steps of the control method of the air compressor of the motor train unit according to any one of the embodiments.
A fourth aspect of an embodiment of the present invention provides a computer-readable storage medium, including: the computer readable storage medium stores a computer program, and the computer program is executed by a processor to realize the steps of the control method of the air compressor of the motor train unit according to any one of the embodiments.
Compared with the prior art, the embodiment of the invention has the following beneficial effects: compared with the prior art, the motor train unit is provided with the screw air compressor and the piston air compressor in a combined mode, and then the screw air compressor and the piston air compressor are alternately arranged as the main machines according to the preset time interval; when wind pressure is less than first wind pressure in the reservoir, control the host computer starts, works as when the wind pressure is less than the second wind pressure, continues to control another air compressor and starts to can make air compressor cooperation work, neither extravagant energy, also can not cause the impact to power supply network or other equipment owing to restart piston air compressor many times for two air compressor of control reach more effective operating condition.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic flow chart of an implementation of a control method of an air compressor of a motor train unit according to an embodiment of the invention;
FIG. 2 is an exemplary diagram of a control device of an air compressor of a motor train unit according to an embodiment of the invention;
fig. 3 is a schematic diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Fig. 1 is a schematic flow chart illustrating an implementation process of a control method of an air compressor of a motor train unit according to an embodiment of the present invention.
Step 101, alternately arranging the screw air compressor and the piston air compressor as main machines according to a preset time interval.
Optionally, the preset time interval may be set according to a requirement, and a value of the preset time interval is not limited in this embodiment. For example, the preset time interval may be one day, one week, 10 days, etc.
If the preset time interval is one day, the screw air compressor and the piston air compressor can be sequentially arranged as the main machines on a single day and a double day. For example, the screw air compressor is set as a master machine, the piston air compressor is set as a slave machine on a single day, the piston air compressor is set as a master machine on a double day, and the screw air compressor is set as a slave machine.
Step 102, when the wind pressure in the air cylinder is smaller than a first wind pressure, controlling the host to start, and when the wind pressure is smaller than a second wind pressure, continuously controlling another air compressor to start; the first wind pressure is greater than the second wind pressure.
Optionally, this step may include:
when the screw air compressor is a host machine, controlling the screw air compressor to start when the air pressure in an air cylinder is smaller than a first air pressure, and continuously controlling the piston air compressor to start when the air pressure is smaller than a second air pressure;
when the piston type air compressor is a host machine, when the air pressure in the air cylinder is smaller than a first air pressure, the screw type air compressor is controlled to be started, and when the air pressure is smaller than a second air pressure, the screw type air compressor is continuously controlled to be started.
Alternatively, the first air pressure may be 7.5bar, and the second air pressure may be 7bar.
Optionally, when the screw air compressor is the main machine and the air pressure is less than 7.5bar, the screw air compressor is controlled to start, the solenoid valve of the screw air compressor is opened, and the screw air compressor blows air outwards. When the wind pressure is less than 7bar, the piston type air compressor is started and blows air outwards.
The method can also comprise the following steps: and when the wind pressure is greater than or equal to a third wind pressure, controlling the screw air compressor and the piston air compressor to stop supplying wind, wherein the third wind pressure is greater than the second wind pressure.
Alternatively, the third air pressure may be 9bar. Namely, when the wind pressure is more than 9bar, the piston type air compressor stops and the air supply stops; the screw air compressor stops blowing out, but the screw air compressor motor is still running.
Optionally, when the piston type air compressor is a host, and the wind pressure is less than 7.5bar, the piston type air compressor is controlled to be started, the electromagnetic valve of the piston type air compressor is opened, and the piston type air compressor blows air outwards. When the wind pressure is less than 7bar, the screw air compressor is started and blows air outwards.
Further, when the wind pressure is less than 7bar, detecting whether the frequency that the wind pressure is less than the second wind pressure after the motor train unit is electrified is a preset frequency; when the number of times that the wind pressure is smaller than the second wind pressure after the motor train unit is electrified is a preset number of times, the screw air compressor is continuously controlled to start after the first preset time is delayed.
The preset times can be set according to actual requirements, and the value of the preset times is not limited in this embodiment, for example, the preset times can be wind pressure reduced by 1bar within 1 s.
The first preset time may be a time delay of 5s, or a time delay of 6s, 10s, or the like, where the first preset time may be set according to an actual requirement, and a value of the first preset time is not limited in this embodiment.
Furthermore, after the screw type air compressor operates, the operating time of the screw type air compressor is timed.
When the wind pressure is larger than or equal to a third wind pressure, the piston air compressor is controlled to stop supplying wind, whether the wind supply of the screw air compressor is stopped is determined according to the running time of the screw air compressor and the condition that the wind pressure is smaller than the second wind pressure in the running time of the screw air compressor, and the third wind pressure is larger than the second wind pressure.
Optionally, when the operating time of the screw air compressor does not reach a second preset time and the condition that the air pressure is smaller than a second air pressure does not occur, controlling the screw air compressor to stop supplying air;
when screw air compressor's operating time is not greater than the second and presets the time, the condition that the wind pressure is less than the second wind pressure appears to the wind pressure is less than the moment of second wind pressure and times again to appear, and keeps screw air compressor externally supplies wind until the condition that the wind pressure is less than the second wind pressure does not appear in the second presets the time again, perhaps reaches when the second presets the time that the time corresponds, controls screw air compressor stops the air feed.
Optionally, the second preset time may be set according to actual requirements, and a value of the second preset time is not limited in this embodiment. For example, the second preset time may be 45min.
In the embodiment, the operation time of the screw air compressor is checked after the wind pressure is greater than or equal to 9bar, and if the operation time of the screw air compressor does not exceed 45min at the moment and the situation that the wind pressure is less than 7bar does not occur, the screw air compressor is immediately stopped. If the operating time of the screw air compressor does not exceed 45min and the air pressure is below 7bar, the screw air compressor is stopped after the screw air compressor is kept operating for 45min, namely when the operating time of the screw air compressor is within 45min, the operating time of the screw air compressor needs to be reset every time the air pressure is less than 7bar.
According to the control method of the air compressor of the motor train unit, the screw type air compressor and the piston type air compressor are combined and arranged on the motor train unit, and then the screw type air compressor and the piston type air compressor are alternately arranged as a host machine according to a preset time interval; when wind pressure is less than first wind pressure in the reservoir, control the host computer starts, works as when the wind pressure is less than the second wind pressure, another air compressor of continuous control starts, stops screw air compressor and piston air compressor's air feed according to the condition again when the wind pressure reaches the third wind pressure to can make air compressor cooperation work, neither waste the energy, also can not cause the impact to power supply network or other equipment because restart piston air compressor many times, make two air compressor of control reach more effective operating condition.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Corresponding to the control method of the air compressor of the motor train unit described in the above embodiment, fig. 2 shows an exemplary diagram of the control device of the air compressor of the motor train unit provided by the embodiment of the invention. As shown in fig. 2, the control device of the air compressor of the motor train unit may include: a setup module 201 and a control module 202.
The setting module 201 is used for alternately setting the screw air compressor and the piston air compressor as a main machine according to a preset time interval;
the control module 202 is used for controlling the host to start when the wind pressure in the air cylinder is smaller than a first wind pressure, and continuously controlling the other air compressor to start when the wind pressure is smaller than a second wind pressure; the first wind pressure is greater than the second wind pressure.
Optionally, the control module 202 may be configured to:
when the screw air compressor is a host machine, controlling the screw air compressor to start when the air pressure in an air cylinder is smaller than a first air pressure, and continuously controlling the piston air compressor to start when the air pressure is smaller than a second air pressure;
optionally, the control module 202 may further be configured to:
and when the wind pressure is greater than or equal to a third wind pressure, controlling the screw air compressor and the piston air compressor to stop supplying wind, wherein the third wind pressure is greater than the second wind pressure.
Optionally, the control module 202 may be configured to control the screw air compressor to stop blowing air outwardly and the screw air compressor motor to operate.
Optionally, the control module 202 may be configured to: when the piston type air compressor is a host machine, when the air pressure in an air cylinder is smaller than a first air pressure, the screw type air compressor is controlled to be started, and when the air pressure is smaller than a second air pressure, the screw type air compressor is continuously controlled to be started;
optionally, the control module 202 may further be configured to: when the wind pressure is larger than or equal to a third wind pressure, the piston air compressor is controlled to stop supplying wind, whether the wind supply of the screw air compressor is stopped is determined according to the running time of the screw air compressor and the condition that the wind pressure is smaller than the second wind pressure in the running time of the screw air compressor, and the third wind pressure is larger than the second wind pressure.
Optionally, when the wind pressure is less than the second wind pressure, the control module 202 may be configured to, when continuing to control the screw air compressor to start:
when the wind pressure is smaller than the second wind pressure, detecting whether the frequency that the wind pressure is smaller than the second wind pressure after the motor train unit is electrified is a preset frequency;
and when the number of times that the wind pressure is smaller than the second wind pressure after the motor train unit is electrified is a preset number, delaying the first preset time and then continuously controlling the screw type air compressor to start.
Optionally, after the control module 202 continues to control the screw air compressor to start when the wind pressure is less than the second wind pressure, the control module 202 may be further configured to:
timing an operating time of the screw air compressor.
Optionally, the control module 202 may be configured to determine whether to stop the air supply to the screw air compressor based on the operating time of the screw air compressor and whether a wind pressure less than a second wind pressure is present during the operating time of the screw air compressor:
when the running time of the screw air compressor is not longer than a second preset time and the condition that the air pressure is smaller than a second air pressure does not occur, controlling the screw air compressor to stop air supply;
when screw air compressor's operating time is not greater than the second and presets the time, the condition that the wind pressure is less than the second wind pressure appears to the wind pressure is less than the moment of second wind pressure and times again to appear, and keeps screw air compressor externally supplies wind until the condition that the wind pressure is less than the second wind pressure does not appear in the second presets the time again, perhaps reaches when the second presets the time that the time corresponds, controls screw air compressor stops the air feed.
According to the control device of the air compressor of the motor train unit, the screw type air compressor and the piston type air compressor are combined and arranged on the motor train unit, and then the screw type air compressor and the piston type air compressor are alternately arranged by the setting module according to the preset time interval as the main machine; when wind pressure is less than first wind pressure in the reservoir, control module control the host computer starts, works as when the wind pressure is less than the second wind pressure, control module continues to control another air compressor and starts, and control module stops screw air compressor and piston air compressor's air feed according to the condition again when the wind pressure reaches the third wind pressure to can make air compressor cooperation work, neither waste the energy, also can not cause the impact to power supply network or other equipment because restart piston air compressor many times, make two air compressor of control reach more effective operating condition.
Fig. 3 is a schematic diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 3, the terminal device 300 of this embodiment includes: a processor 301, a memory 302 and a computer program 303 stored in said memory 302 and operable on said processor 301, for example a control program for a motor train unit air compressor. The processor 301 executes the computer program 303 to implement the steps in the control method embodiment of the air compressor of the motor train unit, such as steps 101 to 102 shown in fig. 1, and the processor 301 executes the computer program 303 to implement the functions of the modules in the device embodiments, such as modules 201 to 202 shown in fig. 2.
Illustratively, the computer program 303 may be partitioned into one or more program modules that are stored in the memory 302 and executed by the processor 301 to implement the present invention. The one or more program modules may be a series of computer program instruction segments capable of performing specific functions for describing the execution process of the computer program 303 in the control device or terminal device 300 of the air compressor of the motor train unit. For example, the computer program 303 may be divided into the setting module 201 and the control module 202, and specific functions of the modules are shown in fig. 2, which are not described in detail herein.
The terminal device 300 may be a computing device such as a desktop computer, a notebook, a palm computer, and a cloud server. The terminal device may include, but is not limited to, a processor 301, a memory 302. Those skilled in the art will appreciate that fig. 3 is merely an example of a terminal device 300 and does not constitute a limitation of terminal device 300 and may include more or fewer components than shown, or some components may be combined, or different components, for example, the terminal device may also include input output devices, network access devices, buses, etc.
The Processor 301 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 302 may be an internal storage unit of the terminal device 300, such as a hard disk or a memory of the terminal device 300. The memory 302 may also be an external storage device of the terminal device 300, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 300. Further, the memory 302 may also include both an internal storage unit and an external storage device of the terminal device 300. The memory 302 is used for storing the computer programs and other programs and data required by the terminal device 300. The memory 302 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. . Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U.S. disk, removable hard disk, magnetic diskette, optical disk, computer Memory, read-Only Memory (ROM), random Access Memory (RAM), electrical carrier wave signal, telecommunications signal, and software distribution medium, etc. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.
Claims (9)
1. A control method of an air compressor of a motor train unit is characterized in that the motor train unit is provided with a screw air compressor and a piston air compressor, and the control method of the air compressor of the motor train unit comprises the following steps:
alternately arranging the screw air compressor and the piston air compressor as main machines according to a preset time interval;
when the wind pressure in the air cylinder is smaller than a first wind pressure, controlling the host to start, and when the wind pressure is smaller than a second wind pressure, continuously controlling another air compressor to start; the first wind pressure is greater than the second wind pressure;
when wind pressure is less than first wind pressure in the reservoir, control the host computer starts, when the wind pressure is less than the second wind pressure, continue to control another air compressor and start, include:
when the piston type air compressor is a host machine, when the air pressure in an air cylinder is smaller than a first air pressure, the piston type air compressor is controlled to be started, and when the air pressure is smaller than a second air pressure, the screw type air compressor is continuously controlled to be started;
correspondingly, when the piston air compressor is the host computer, when the wind pressure is less than first wind pressure in the reservoir, control the host computer and start, when the wind pressure is less than the second wind pressure, after continuing to control another air compressor and start, still include:
when the wind pressure is larger than or equal to a third wind pressure, the piston air compressor is controlled to stop supplying wind, whether the wind supply of the screw air compressor is stopped is determined according to the running time of the screw air compressor and the condition that the wind pressure is smaller than the second wind pressure in the running time of the screw air compressor, and the third wind pressure is larger than the second wind pressure.
2. The method as claimed in claim 1, wherein the method for controlling the air compressor of the motor train unit further comprises the steps of when the air pressure in the air cylinder is smaller than a first air pressure, controlling the main engine to start, and when the air pressure is smaller than a second air pressure, continuously controlling another air compressor to start, further comprising:
when the screw air compressor is a host machine, controlling the screw air compressor to start when the air pressure in an air cylinder is smaller than a first air pressure, and continuously controlling the piston air compressor to start when the air pressure is smaller than a second air pressure;
correspondingly, when the screw air compressor is a main machine, when the air pressure in the air cylinder is smaller than a first air pressure, the main machine is controlled to start, when the air pressure is smaller than a second air pressure, after another air compressor is continuously controlled to start, the method further comprises the following steps:
and when the wind pressure is greater than or equal to a third wind pressure, controlling the screw air compressor and the piston air compressor to stop supplying wind, wherein the third wind pressure is greater than the second wind pressure.
3. The method for controlling the air compressor of the motor train unit according to claim 2, wherein the stopping of the air supply of the screw type air compressor comprises:
and controlling the screw air compressor to stop blowing air outwards, and operating the screw air compressor motor.
4. The method for controlling the air compressor of the motor train unit according to claim 1, wherein when the wind pressure is less than a second wind pressure, continuously controlling the screw air compressor to start comprises:
when the wind pressure is smaller than the second wind pressure, detecting whether the frequency that the wind pressure is smaller than the second wind pressure after the motor train unit is electrified is a preset frequency;
and when the number of times that the wind pressure is smaller than the second wind pressure after the motor train unit is electrified is a preset number, delaying the first preset time and then continuously controlling the screw type air compressor to start.
5. The method for controlling the air compressor of the motor train unit according to claim 4, wherein after the controlling the screw air compressor to start when the wind pressure is less than the second wind pressure, the method further comprises:
timing the operating time of the screw air compressor.
6. The method for controlling the air compressor of the motor train unit according to claim 5, wherein the determining whether to stop the air supply of the screw type air compressor according to the operation time of the screw type air compressor and whether the wind pressure is smaller than the second wind pressure during the operation time of the screw type air compressor comprises:
when the running time of the screw air compressor is not longer than a second preset time and the condition that the air pressure is smaller than a second air pressure does not occur, controlling the screw air compressor to stop air supply;
when screw air compressor's operating time is not greater than the second and presets the time, the condition that the wind pressure is less than the second wind pressure appears to the wind pressure is less than the moment of second wind pressure and times again to appear, and keeps screw air compressor externally supplies wind until the condition that the wind pressure is less than the second wind pressure does not appear in the second presets the time again, perhaps reaches when the second presets the time that the time corresponds, controls screw air compressor stops the air feed.
7. The utility model provides a EMUs air compressor's controlling means, its characterized in that sets up a screw air compressor and a piston air compressor on the EMUs, EMUs air compressor's controlling means includes:
the setting module is used for alternately setting the screw air compressor and the piston air compressor as main machines according to a preset time interval;
the control module is used for controlling the host to start when the air pressure in the air cylinder is smaller than a first air pressure, and continuously controlling the other air compressor to start when the air pressure is smaller than a second air pressure; the first wind pressure is greater than the second wind pressure;
when wind pressure is less than first wind pressure in the reservoir, control the host computer starts, when the wind pressure is less than the second wind pressure, continue to control another air compressor and start, include:
when the piston type air compressor is a host machine, when the air pressure in an air cylinder is smaller than a first air pressure, the piston type air compressor is controlled to be started, and when the air pressure is smaller than a second air pressure, the screw type air compressor is continuously controlled to be started;
correspondingly, when the piston air compressor is the host computer, when the wind pressure is less than first wind pressure in the reservoir, control the host computer and start, when the wind pressure is less than the second wind pressure, after continuing to control another air compressor and start, still include:
when the wind pressure is larger than or equal to a third wind pressure, the piston air compressor is controlled to stop supplying wind, whether the wind supply of the screw air compressor is stopped is determined according to the running time of the screw air compressor and the condition that the wind pressure is smaller than the second wind pressure in the running time of the screw air compressor, and the third wind pressure is larger than the second wind pressure.
8. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 6 when executing the computer program.
9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110528774.1A CN113404677B (en) | 2021-05-14 | 2021-05-14 | Control method and device for air compressor of motor train unit and terminal equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110528774.1A CN113404677B (en) | 2021-05-14 | 2021-05-14 | Control method and device for air compressor of motor train unit and terminal equipment |
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| CN113404677B true CN113404677B (en) | 2023-04-07 |
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| CN102312828A (en) * | 2011-05-25 | 2012-01-11 | 南车戚墅堰机车有限公司 | Start-stop control method for double air compressor of locomotive |
| CN104454479B (en) * | 2014-12-09 | 2016-08-17 | 南车株洲电力机车有限公司 | A kind of control method of rail vehicle compressor |
| CN205190177U (en) * | 2015-11-28 | 2016-04-27 | 中国北车集团大连机车车辆有限公司 | Locomotive hybrid compressor set controlling means |
| DE102017209992B4 (en) * | 2017-06-13 | 2019-05-29 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Method and device for controlling a compressed air supply |
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