Anti-condensation system and method for sliding plug door and end part of motor train unit
By real-time monitoring and automatic adjustment of the temperature and humidity of the sliding doors and ends, the problem of condensation water on the sliding doors and ends of the EMU was solved, and the protection effect was improved and the equipment life was extended.
Patent Information
- Application Number
- CN202510955115.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-11
- Publication Date
- 2025-09-16
AI Technical Summary
When EMUs operate in winter, condensation is likely to form on the sliding doors and end inner walls, causing corrosion of electronic components and damage to interior trim, and the protective effect of existing insulation materials and sealing strips gradually weakens.
The data acquisition module is used to monitor the temperature and humidity of the sliding door and the end in real time. The temperature and humidity are controlled by the sliding door heating module and the end warm air module. The threshold is set to judge and automatically adjust the heating device of the sliding door and the end to prevent the formation of condensation water.
Effectively prevent the formation of condensation water, extend equipment life, ensure normal operation of trains and passenger health, and improve the comfort of the interior environment.
Smart Images
Figure CN120646035A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of rail transportation, and in particular to a system and method for preventing condensation water from plug doors and ends of EMUs. Background Art
[0002] When the centralized power EMU runs in winter, the outside temperature is usually at a low level. The ends of the EMU are in direct contact with the external environment. The end sliding doors and walls are affected by the low temperature environment, and the temperature drops sharply. Condensation water is easily generated on the sliding doors and the inner walls of the end. The condensation water corrodes electronic devices or damages the interior, thereby affecting the operation of the train.
[0003] To reduce condensation in the sliding doors and end sections, these walls are now being insulated with thicker materials, such as polyurethane foam and aerogel felt. These materials have low thermal conductivity and effectively block the effects of low temperatures on the vehicle body, narrowing the temperature difference between the end sections and the passenger compartment, and reducing the possibility of hot air liquefying when it encounters cold air. Furthermore, high-performance sealing strips are installed around the edges of the sliding doors to enhance their sealing, prevent cold air from penetrating, and prevent excessive flow of hot air from the passenger compartment to the cooler end sections.
[0004] However, the cold air cannot be completely isolated by the insulation material or the sealing strip, and as the operation time increases, the insulation material and the sealing strip gradually age, the protection effect deteriorates, and the anti-condensation effect is poor. Summary of the Invention
[0005] The embodiments of the present application provide a system and method for preventing condensation water from the sliding doors and ends of an EMU, so as to at least solve the problem of poor anti-condensation effect of the sliding doors and end inner walls at both ends of the vehicle in the related art.
[0006] In a first aspect, an embodiment of the present application provides a system for preventing condensation water from sliding plug doors and ends of an EMU train, wherein two sliding plug doors are provided at opposite ends of each carriage, and the end portion is the area between the two sliding plug doors at the same end of the same carriage; the system comprises: A data acquisition module is configured to detect the real-time temperature of each sliding plug door, the real-time temperature of each end, and the real-time humidity; The plug door heating module is located inside each plug door and is used to change the temperature of the plug door; The end heating module is provided at each end to change the temperature and humidity of the end; a control module connected to the data acquisition module, the plug door heating module and the end warm air module, and configured to set a first plug door temperature threshold, a first end temperature threshold and a first end humidity threshold; Obtain the real-time temperature of each sliding door and the real-time humidity of each end, determine whether the temperature of any sliding door is lower than or equal to a first sliding door temperature threshold, and simultaneously determine whether the real-time humidity of the end adjacent to the sliding door is higher than or equal to the first end humidity threshold. If both are true, control the sliding door heating module in the sliding door to operate and increase the temperature of the sliding door; The real-time temperature of any end is obtained to determine whether the real-time temperature of the end is lower than or equal to the first end temperature threshold. If so, the end heating module located at the end is controlled to operate to increase the temperature of the end.
[0007] In some embodiments, the control module is further configured to set a second plug door temperature threshold and a second end humidity threshold; wherein the second plug door temperature threshold is greater than the first plug door temperature threshold, and the second end humidity threshold is less than the first end humidity threshold; Control the operation of the Sierra door heating module, and after raising the temperature of the Sierra door, determine whether the real-time temperature of the Sierra door is equal to or higher than the second Sierra door temperature threshold. If so, control the Sierra door heating module to stop running; or determine whether the real-time humidity of the end is lower than or equal to the second end humidity threshold. If so, control the Sierra door heating module to stop running.
[0008] In some of the embodiments, the EMU includes a plurality of ends, and a temperature sensor is provided at each end of each carriage for detecting the real-time temperature of the end; The control module is further configured to obtain real-time temperatures of multiple end portions in any carriage and calculate an average value of the real-time temperatures of the multiple end portions; Determine whether the average value is lower than or equal to the temperature threshold. If so, control the heating module at each end of the carriage to operate and increase the temperature at the end.
[0009] In some embodiments, the control module is further configured to set a second end temperature threshold; wherein the second end temperature threshold is greater than the first end temperature threshold; After controlling the end heating module to operate and raising the end temperature, it is determined whether the real-time end temperature is equal to or higher than the second end temperature threshold. If so, the end heating module is controlled to stop operating.
[0010] In some of the embodiments, the control module is further configured to obtain the air-conditioning status of the EMU and determine whether the air-conditioning status is a cooling state. If not, obtain the real-time temperature of the end and determine whether the real-time temperature of the end is lower than or equal to a first end temperature threshold. If so, control the operation of the end heating module to increase the temperature of the end.
[0011] In a second aspect, an embodiment of the present application provides a method for preventing condensation of a sliding plug door and an end portion of an EMU, which is used to control the temperature of the sliding plug door and the temperature and humidity of the end portion, comprising: Setting a first sliding plug door temperature threshold, a first end temperature threshold, and a first end humidity threshold; Detect the real-time temperature of the sliding door, the real-time temperature of the end and the real-time humidity; Determine whether the temperature of the plug sliding door is lower than or equal to a first plug sliding door temperature threshold, and simultaneously determine whether the real-time humidity of the end is higher than or equal to a first end humidity threshold. If both are true, increase the temperature of the plug sliding door; It is determined whether the real-time temperature of the end portion is lower than or equal to a first end portion temperature threshold; if so, the temperature of the end portion is increased.
[0012] In some embodiments, the method for preventing condensation water on plug sliding doors and ends of EMUs further comprises: Setting a second plug-sliding door temperature threshold and a second end humidity threshold; wherein the second plug-sliding door temperature threshold is greater than the first plug-sliding door temperature threshold, and the second end humidity threshold is less than the first end humidity threshold; After increasing the temperature of the plug sliding door, determine whether the real-time temperature of the plug sliding door is equal to or higher than the second plug sliding door temperature threshold, and if so, stop increasing the temperature of the plug sliding door; or Determine whether the real-time humidity of the end is lower than or equal to the second end humidity threshold. If so, stop increasing the temperature of the sliding door.
[0013] In some embodiments, the method for preventing condensation water on plug sliding doors and ends of EMUs further comprises: Obtaining real-time temperatures of multiple ends and calculating an average value of the real-time temperatures of the multiple ends; It is determined whether the average value is lower than or equal to the temperature threshold. If so, the temperature of the end is increased.
[0014] In some embodiments, the method for preventing condensation water on plug sliding doors and ends of EMUs further comprises: Setting a second end temperature threshold; wherein the second end temperature threshold is greater than the first end temperature threshold; After the temperature of the end portion is increased, it is determined whether the real-time temperature of the end portion is equal to or higher than a second end portion temperature threshold. If so, the temperature increase of the end portion is stopped.
[0015] In some embodiments, the method for preventing condensation water on plug sliding doors and ends of EMUs further comprises: Obtain the air conditioning status of the EMU and determine whether the air conditioning status is cooling. If not, obtain the real-time temperature of the end and determine whether the real-time temperature of the end is lower than or equal to the first end temperature threshold. If so, increase the temperature of the end. Compared with the related technologies, the anti-condensation method for the EMU sliding doors and ends provided in the embodiments of the present application solves the problem of poor anti-condensation effect at both ends of the EMU vehicles in a cold external environment by controlling the temperature and humidity of the sliding doors and ends, thereby improving the anti-condensation effect at both ends of the EMU vehicles, thereby extending the service life of the equipment and ensuring the normal operation of the train.
[0016] The details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 It is a vehicle plan layout diagram according to the relevant technology; Figure 2 This is a structural block diagram of the anti-condensation water system for the plug sliding door and end of an EMU according to an embodiment of the present application; Figure 3 1. It is a schematic diagram of a control circuit of a heating tape in an anti-condensation water system of a plug sliding door and an end portion of an EMU according to an embodiment of the present application; Figure 4 This is a structural block diagram of the anti-condensation water system for the plug sliding door and end of an EMU according to an embodiment of the present application; Figure 5 This is a schematic diagram of the main circuit of the end heating module in the anti-condensation water system of the plug sliding door and the end of the EMU according to an embodiment of the present application; Figure 6 This is a schematic diagram of the control circuit of the end heating module in the plug sliding door and end anti-condensation water system of the EMU according to an embodiment of the present application; Figure 7 This is a flow chart of a method for preventing condensation water on plug sliding doors and ends of an EMU according to an embodiment of the present application; Figure 8 This is a control flow chart of the sliding door heating cable of the EMU sliding door and the anti-condensation water system at the end according to an embodiment of the present application; Figure 9 This is a control flow chart of the end electric heater device of the EMU plug sliding door and the end anti-condensation water system according to the embodiment of the present application.
[0018] In the figure: 201, data acquisition module; 202, sliding door heating module 2; 203, end warm air module; 204, control module. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is described and illustrated below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely used to explain this application and are not intended to limit this application. Based on the embodiments provided in this application, all other embodiments obtained by those of ordinary skill in the art without making any creative efforts are within the scope of protection of this application.
[0020] Obviously, the drawings described below are merely examples or embodiments of the present application. Those skilled in the art can, without inventive effort, apply the present application to other similar scenarios based on these drawings. Furthermore, it is also understood that, although the effort involved in such a development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, changes in design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as an insufficiency of the content disclosed in this application.
[0021] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments unless there is a conflict.
[0022] Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by persons of ordinary skill in the art to which this application belongs. The terms "a," "an," "an," "the," and similar expressions used herein do not denote quantitative limitations and may refer to either the singular or the plural. The terms "comprise," "include," "have," and any variations thereof, used herein, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or modules (units) is not limited to the listed steps or units but may also include steps or units not listed, or may include other steps or units inherent to the process, method, product, or apparatus. The terms "connected," "connected," "coupled," and similar expressions used herein are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. As used herein, "plurality" means two or more. "And / or" describes an association between associated objects, indicating that three possible relationships exist. For example, "A and / or B" may mean: A exists alone; A and B exist simultaneously; or B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific order for the objects.
[0023] like Figure 1 As shown, Figure 1 This is a floor plan of the train. The interior of the train is divided into multiple areas. Each car has two sliding doors at opposite ends. The end area is the area between the two sliding doors at the same end of the same car. Area 1 is the sliding door, Area 2 is the end area, Area 3 is the inner end door, and Area 4 is the passenger compartment.
[0024] During the operation of the centralized power EMU, condensation water appears on the sliding doors and end inner walls in winter, which is mainly due to the complex heat exchange process and the structural characteristics of the vehicle body.
[0025] From the physical principles of heat transfer, the outside temperature is typically low in winter. The train's ends are directly exposed to the outside environment, causing the end sliding doors and walls to be affected by the low temperature and experience a sharp drop in temperature. However, the passenger compartment, continuously heated by the air conditioning system, remains relatively warm, creating a significant temperature difference between the hot air inside the passenger compartment and the cooler end sliding doors and walls. When the hot, moisture-rich air in the passenger compartment flows to the end area and contacts the cooler sliding doors and walls, according to the laws of thermodynamics, it rapidly releases heat, and the water vapor within it liquefies upon cooling, condensing into small droplets on the sliding doors and end interior walls, forming condensed water. In addition, the inner end door also plays a key role in this process. As a barrier separating the passenger compartment from the end area, the inner end door effectively blocks the transfer of heat from the passenger compartment to the end. During normal operation, the inner end door is closed, and it is difficult for the heat from the passenger compartment to diffuse to the end through convection and other means, so that the end area is always in a relatively low temperature state. Compared with the higher temperature and relatively stable passenger compartment environment, the low temperature environment at the end further increases the temperature difference with the hot air in the passenger compartment, accelerating the process of hot air liquefaction when cooled, thereby exacerbating the generation of condensation water. Moreover, once condensation water is formed, it is difficult to evaporate and dissipate quickly in the low temperature end environment, causing condensation water to continue to accumulate on the surface of the sliding door and the inner wall of the end. The long-term presence of condensation water may cause corrosion of the metal surface, further affecting its structural strength and service life. Condensation water may also penetrate into electronic components, causing short circuits, corrosion and other problems, affecting the normal operation of the equipment and posing challenges to the normal operation and maintenance of the EMU.
[0026] In addition to damaging the train itself, condensation also impacts passenger experience and health. Condensation can be a breeding ground for bacteria. In closed, humid environments, the presence of condensation can lead to the proliferation of microorganisms such as bacteria and mold, posing a potential threat to human health. It can become airborne and cause respiratory infections and other illnesses. Furthermore, long-term condensation dripping onto interior components can cause mold and odor, impacting the comfort of the train interior.
[0027] In order to solve the above problems, the present application provides a system and method for preventing condensation water from flowing into the plug-in doors and ends of EMUs, which increases the temperature of the ends and plug-in doors, reduces the temperature difference between the two ends of the vehicle and the passenger compartment, and prevents the surface temperature of the plug-in doors from being too low, resulting in the adhesion of condensation water.
[0028] like Figure 2 As shown, the anti-condensation water system for the EMU plug sliding door and the end includes a data acquisition module 201, a plug sliding door heating module 202, an end warm air module 203 and a control module 204.
[0029] The data acquisition module 201 is configured to detect the real-time temperature of each sliding plug door, the real-time temperature of each end, and the real-time humidity.
[0030] Data acquisition module 201 includes temperature sensors and humidity sensors. Some temperature sensors are located inside the sliding door to detect the door's real-time temperature. Some temperature sensors are located at the end of the door to detect the door's real-time temperature. Humidity sensors are located at the end of the door to detect the door's real-time humidity.
[0031] The plug-in door heating module 202 is located inside each plug-in door and is used to change the temperature of the plug-in door.
[0032] The plug door heating module 202 includes multiple heating cables. Multiple plug doors are set in the EMU train, and each plug door is provided with a heating cable. Figure 3 As shown, Figure 3 This is the control circuit for multiple heating cables. Each door's heating cable is powered by a single-phase 220V supply, which passes through leakage protection circuit breaker Q161. The heating cable contactors KM35, KM36, KM37, and KM38 each control four heating cables. The coils of these four heating cable contactors are driven by the digital outputs of control module 204. Each of these contactors, KM35, KM36, KM37, and KM38, has two internal contacts, and these two contacts operate synchronously.
[0033] The end warm air module 203 is provided at each end and is used to change the temperature and humidity of the end.
[0034] The control module 204, connected to the data acquisition module 201, the sliding door heating module 202, and the end heating module 203, is configured to set a first sliding door temperature threshold, a first end temperature threshold, and a first end humidity threshold. The control module 204 obtains the real-time temperature of each sliding door and the real-time humidity of each end, determines whether the temperature of any sliding door is lower than or equal to the first sliding door temperature threshold, and simultaneously determines whether the real-time humidity of the end adjacent to the sliding door is higher than or equal to the first end humidity threshold. If both are true, the sliding door heating module 202 within the sliding door is controlled to operate, thereby increasing the sliding door temperature. The real-time temperature of any end is obtained, and determines whether the real-time temperature of the end is lower than or equal to the first end temperature threshold. If so, the end heating module 203 located at the end is controlled to operate, thereby increasing the end temperature.
[0035] The control module 204 includes a programmable logic controller (PLC), as follows Figure 4 As shown, the PLC connects to temperature sensors inside the sliding plug door, as well as temperature and humidity sensors at the ends. It collects real-time temperatures of the four sliding plug doors and the real-time temperatures and humidity of the two ends. It then sets the corresponding digital outputs of the heating cable contactors to 1, thereby closing the heating cable contactors KM35, KM36, KM37, and KM38. The PLC also controls the opening or closing of KA31 based on the collected data.
[0036] Sensors monitor the temperature of the sliding door and the temperature and humidity of the end in real time, and only apply heating measures when condensation conditions are met, reducing unnecessary energy consumption. Furthermore, by using dual temperature and humidity thresholds to determine the condensation problem, the system can specifically address the condensation problem on the sliding door and end, preventing equipment corrosion or malfunction caused by condensation and improving the anti-condensation effect on the vehicle's sliding door and end.
[0037] like Figure 5 and Figure 6 As shown, two end electric heating devices are set in the end heating module 203 to increase the end temperature. The end electric heating contactor KM10 controls the two end electric heating devices through DC600V power supply and DC circuit breaker Q25. Among them, DR25 is a heating resistor for providing heat to the end. The control circuit of the end heating module 203 is as follows Figure 6 As shown, a 1000-turn switch SA5 is designed. SA5 has three positions: automatic, stop, and manual. When SA5 is in the manual position, the coil of KM10 is directly energized and closes, thereby energizing the end heater. When SA5 is in the automatic position, the KM10 coil circuit is connected in series with the normally open contact of KA31 and the normally closed contact of the air conditioning high-pressure contactor KM12. KA31 is the intermediate relay that drives KM10, and the KA31 coil is driven by the digital output of the PLC. A temperature sensor, a PT100 type, is installed at each end of the train. The PLC collects the real-time temperature of the end. When the first end temperature threshold is reached, the digital output of the corresponding point is set to 1. The system operates automatically to reduce the possibility of the end heater contactor not closing due to manual failure to close the circuit breaker in time.
[0038] When the air conditioning is in a strong wind state, the end electric heater stops working to prevent the end electric heater from working in summer.
[0039] In some embodiments, the control module 204 is further configured to set a second plug door temperature threshold and a second end humidity threshold.
[0040] Among them, the second Sierra door temperature threshold is greater than the first Sierra door temperature threshold, and the second end humidity threshold is less than the first end humidity threshold.
[0041] The plug door heating module 202 is controlled to operate, and after the plug door temperature is increased, it is determined whether the real-time plug door temperature is equal to or higher than a second plug door temperature threshold. If so, the plug door heating module 202 is controlled to stop operating. Alternatively, it is determined whether the real-time humidity at the end is lower than or equal to the second end humidity threshold. If so, the plug door heating module 202 is controlled to stop operating.
[0042] The operation or stop of the Sierra door heating module 202 is controlled by dual temperature thresholds to prevent excessive temperature increase or continued energy consumption after the humidity is reduced, which not only reduces the occurrence of condensation, but also saves energy and improves the corresponding flexibility of the system.
[0043] In some of the embodiments, the EMU includes multiple ends, and a temperature sensor is provided at each end of each carriage for detecting the real-time temperature of the end.
[0044] The control module 204 is further configured to obtain the real-time temperatures of multiple ends in any carriage and calculate an average value of the real-time temperatures of the multiple ends.
[0045] It is determined whether the average value is lower than or equal to the temperature threshold. If so, each heating module 203 of the carriage is controlled to operate to increase the temperature of the end.
[0046] The average value is calculated based on the real-time temperature of multiple terminals to prevent local temperature fluctuations from affecting the system control logic, further improving the stability of the system.
[0047] In some embodiments, the control module 204 is further configured to set a second end temperature threshold, wherein the second end temperature threshold is greater than the first end temperature threshold.
[0048] After controlling the end heating module 203 to operate and increase the end temperature, it is determined whether the real-time end temperature is equal to or higher than the second end temperature threshold. If so, the end heating module 203 is controlled to stop operating.
[0049] The dual humidity thresholds limit the temperature rise and fall range of the end, avoiding condensation while preventing overheating of the end, thus optimizing energy consumption and extending the service life of the equipment.
[0050] The first plug-in door temperature threshold, the first end temperature threshold, the first end humidity threshold, the second plug-in door temperature threshold, the second end temperature threshold and the second end humidity threshold can all be set according to actual conditions.
[0051] In some embodiments, the control module 204 is further configured to obtain the air-conditioning status of the EMU and determine whether the air-conditioning status is a cooling state. If not, obtain the real-time temperature of the end and determine whether the real-time temperature of the end is lower than or equal to the first end temperature threshold. If so, control the end heating module 203 to operate and increase the temperature of the end.
[0052] When the air conditioner is not in cooling mode, that is, in low wind or heating mode, the train is in a cold area, and the temperature difference between indoor and outdoor creates conditions for condensation on the sliding plug doors and ends. Combined with the EMU air conditioner state adjustment system, the system can respond promptly and improve the comprehensiveness of condensation prevention.
[0053] like Figure 8As shown, the control process for the heating cable of a plug sliding door includes: determining whether the real-time temperature of the plug sliding door is lower than or equal to a first temperature threshold and whether the real-time humidity of the end is higher than or equal to a first end humidity threshold. If both judgments are yes, the PLC controls the plug sliding door heating cable contactor to close. It also determines whether the real-time temperature of the plug sliding door is higher than or equal to a second plug sliding door temperature threshold, or whether the real-time humidity of the end is lower than or equal to a second end humidity threshold. If at least one of these is yes, the plug sliding door heating cable contactor is disconnected, and the plug sliding door heating ends. If both are no, the plug sliding door heating cable contactor remains closed, and the plug sliding door heating cable continues to operate.
[0054] like Figure 9 As shown, the control process of the end electric heater device in the end heater module 203 includes: judging whether the air conditioner is in a weak wind or heating state, if not, the end electric heater contactor KM10 is disconnected, and the end electric heater device does not run; if so, judging whether the real-time temperature of the end is lower than or equal to the first end temperature threshold, if not, the end electric heater contactor KM10 remains disconnected, and the end electric heater device does not run; if so, the PLC controls the end electric heater contactor KM10 to be energized, and the end electric heater device runs to increase the real-time temperature of the end.
[0055] Among them, the end electric heater contactor is a DC contactor.
[0056] Among them, the air conditioner is not in cooling state, that is, the air conditioner is in weak wind or heating state.
[0057] It should be noted that the above modules can be functional modules or program modules, and can be implemented through software or hardware. For modules implemented through hardware, the above modules can be located in the same processor; or the above modules can be located in different processors in any combination.
[0058] The embodiment of the present application also provides a method for preventing condensation of plug sliding door and end of EMU, which is used to control the temperature of plug sliding door and the temperature and humidity of end. Figure 7 As shown, the method includes: S701, set the first Sierra door temperature threshold, the first end temperature threshold and the first end humidity threshold.
[0059] S702, detecting the real-time temperature of the sliding door, the real-time temperature of the end, and the real-time humidity.
[0060] S703, determine whether the temperature of the Sierra door is lower than or equal to the first Sierra door temperature threshold, and at the same time determine whether the real-time humidity of the end is higher than or equal to the first end humidity threshold. If both are yes, increase the temperature of the Sierra door.
[0061] S704: Determine whether the real-time temperature of the end portion is lower than or equal to a first end portion temperature threshold. If so, increase the temperature of the end portion.
[0062] Through threshold setting, real-time detection, condition judgment, and temperature increase operation, anti-condensation control of plug sliding doors and ends is achieved. It provides clear logic for anti-condensation control and is easy to operate and run.
[0063] In practical applications, leveraging the existing network topology of a centralized powertrain, the parameter setting function on the vehicle's touchscreen allows users to set the first plug door temperature threshold and the first end humidity threshold. For example, the first plug door temperature threshold is set to 16°C, and the first end humidity threshold is set to 70%. These thresholds are transmitted to the PLC via the RS232 communication protocol, passing through the vehicle's electrical monitoring unit. The PLC compares the real-time plug door temperature and end humidity to control the plug door heating cable contactor to close or open.
[0064] Among them, the vehicle electrical monitoring unit is used for data transmission and data storage.
[0065] In some embodiments, the method for preventing condensation water on plug sliding doors and ends of EMUs further comprises: A second plug-sliding door temperature threshold and a second end humidity threshold are set, wherein the second plug-sliding door temperature threshold is greater than the first plug-sliding door temperature threshold, and the second end humidity threshold is less than the first end humidity threshold.
[0066] After increasing the temperature of the plug sliding door, determine whether the real-time temperature of the plug sliding door is equal to or higher than the second plug sliding door temperature threshold. If so, stop increasing the temperature of the plug sliding door. Or, Determine whether the real-time humidity of the end is lower than or equal to the second end humidity threshold. If so, stop increasing the temperature of the sliding door.
[0067] Dual temperature thresholds control heating on and off to prevent overheating. Furthermore, when the real-time humidity at the end does not meet condensation conditions, the sliding door temperature is stopped. This dual-temperature and humidity control improves the reliability of the control algorithm.
[0068] In some embodiments, the method for preventing condensation water on plug sliding doors and ends of EMUs further comprises: The real-time temperatures of the multiple ends are obtained, and the average value of the real-time temperatures of the multiple ends is calculated.
[0069] It is determined whether the average value is lower than or equal to the temperature threshold. If so, the temperature of the end is increased.
[0070] Avoid erroneous operations caused by abnormal single-end temperature through mean value calculation. Improve the accuracy of control strategies based on multiple temperature data and reduce missed or misjudgment.
[0071] In some embodiments, the method for preventing condensation water on plug sliding doors and ends of EMUs further comprises: A second end temperature threshold is set, wherein the second end temperature threshold is greater than the first end temperature threshold.
[0072] After the temperature of the end portion is increased, it is determined whether the real-time temperature of the end portion is equal to or higher than a second end portion temperature threshold. If so, the temperature increase of the end portion is stopped.
[0073] The dual temperature thresholds limit the temperature rise and fall range of the terminal, clearly define the temperature range control, and ensure the stability of the terminal environment.
[0074] In some embodiments, the method for preventing condensation water on plug sliding doors and ends of EMUs further comprises: Obtain the air conditioning status of the EMU and determine whether the air conditioning status is cooling. If not, obtain the real-time temperature of the end and determine whether the real-time temperature of the end is lower than or equal to the first end temperature threshold. If so, increase the temperature of the end.
[0075] The start and stop of the heating module is dynamically adjusted according to the air-conditioning operating status, and it works in coordination with the air-conditioning operating conditions to avoid repeated energy consumption or insufficient heating, thereby improving the overall energy utilization efficiency of the EMU.
[0076] In actual application, when the vehicle is traveling to a colder area and the air conditioner is not in a strong wind state, the first end temperature threshold is set to 18°C. In any car, when the average value of the real-time temperature of the two ends drops below 18°C, the PLC determines that the electric heater of the end needs to be started. The temperature control hysteresis defaults to 4°C, so the second end temperature threshold is set to 22°C. As the real-time temperature of the end gradually increases, when the real-time temperature of the end reaches 22°C, the PLC stops output and disconnects the contactor KM10 of the end electric heater. When the temperature sensor of one end fails, the value of the temperature sensor of the other end is automatically used.
[0077] The second end temperature threshold is obtained by summing the first end temperature threshold and the temperature control hysteresis. The temperature control hysteresis can be set according to actual needs.
[0078] It should be noted that the steps shown in the above process or the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.
[0079] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0080] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.
Claims
1. An anti-condensation water system for plug sliding doors and ends of EMUs, characterized in that: Two sliding plug doors are provided at opposite ends of each carriage, and the end portion is the area between the two sliding plug doors at the same end of the same carriage; the system includes: A data acquisition module is configured to detect the real-time temperature of each sliding plug door, the real-time temperature of each end, and the real-time humidity; The plug door heating module is located inside each plug door and is used to change the temperature of the plug door; The end heating module is provided at each end to change the temperature and humidity of the end; a control module connected to the data acquisition module, the plug door heating module and the end warm air module, and configured to set a first plug door temperature threshold, a first end temperature threshold and a first end humidity threshold; Obtain the real-time temperature of each sliding door and the real-time humidity of each end, determine whether the temperature of any sliding door is lower than or equal to a first sliding door temperature threshold, and simultaneously determine whether the real-time humidity of the end adjacent to the sliding door is higher than or equal to the first end humidity threshold. If both are true, control the sliding door heating module in the sliding door to operate and increase the temperature of the sliding door; The real-time temperature of any end is obtained to determine whether the real-time temperature of the end is lower than or equal to the first end temperature threshold. If so, the end heating module located at the end is controlled to operate to increase the temperature of the end.
2. The anti-condensation water system for EMU plug sliding doors and ends according to claim 1 is characterized in that: The control module is further configured to set a second plug door temperature threshold and a second end humidity threshold; wherein the second plug door temperature threshold is greater than the first plug door temperature threshold, and the second end humidity threshold is less than the first end humidity threshold; Control the operation of the Sierra door heating module, and after raising the temperature of the Sierra door, determine whether the real-time temperature of the Sierra door is equal to or higher than the second Sierra door temperature threshold. If so, control the Sierra door heating module to stop running; or determine whether the real-time humidity of the end is lower than or equal to the second end humidity threshold. If so, control the Sierra door heating module to stop running.
3. The anti-condensation water system for plug sliding doors and ends of EMUs according to claim 1, wherein a temperature sensor is provided at each end of each carriage to detect the real-time temperature of the end; The control module is further configured to obtain real-time temperatures of multiple end portions in any carriage and calculate an average value of the real-time temperatures of the multiple end portions; Determine whether the average value is lower than or equal to the temperature threshold. If so, control the heating module at each end of the carriage to operate and increase the temperature at the end.
4. The anti-condensation water system for EMU plug sliding doors and ends according to claim 1 or 3, characterized in that: The control module is further configured to set a second end temperature threshold; wherein the second end temperature threshold is greater than the first end temperature threshold; After controlling the end heating module to operate and raising the end temperature, it is determined whether the real-time end temperature is equal to or higher than the second end temperature threshold. If so, the end heating module is controlled to stop operating.
5. The anti-condensation water system for plug sliding doors and ends of EMUs according to claim 1, characterized in that: The control module is further configured to obtain the air conditioning status of the EMU and determine whether the air conditioning status is in cooling status. If not, obtain the real-time temperature of the end and determine whether the real-time temperature of the end is lower than or equal to the first end temperature threshold. If so, control the end heating module to operate and increase the temperature of the end.
6. A method for preventing condensation water on plug sliding doors and ends of EMU trains, characterized in that: Used to control the temperature of sliding doors and the temperature and humidity of the ends, including: Setting a first sliding plug door temperature threshold, a first end temperature threshold, and a first end humidity threshold; Detect the real-time temperature of the sliding door, the real-time temperature of the end and the real-time humidity; Determine whether the temperature of the plug sliding door is lower than or equal to a first plug sliding door temperature threshold, and simultaneously determine whether the real-time humidity of the end is higher than or equal to a first end humidity threshold. If both are true, increase the temperature of the plug sliding door; It is determined whether the real-time temperature of the end portion is lower than or equal to a first end portion temperature threshold; if so, the temperature of the end portion is increased.
7. The method for preventing condensation water of plug sliding doors and ends of EMUs according to claim 6, characterized in that: Also includes: Setting a second plug-sliding door temperature threshold and a second end humidity threshold; wherein the second plug-sliding door temperature threshold is greater than the first plug-sliding door temperature threshold, and the second end humidity threshold is less than the first end humidity threshold; After increasing the temperature of the plug sliding door, determine whether the real-time temperature of the plug sliding door is equal to or higher than the second plug sliding door temperature threshold, and if so, stop increasing the temperature of the plug sliding door; or Determine whether the real-time humidity of the end is lower than or equal to the second end humidity threshold. If so, stop increasing the temperature of the sliding door.
8. The method for preventing condensation water of plug sliding doors and ends of EMUs according to claim 6, characterized in that: Also includes: Obtaining real-time temperatures of multiple ends and calculating an average value of the real-time temperatures of the multiple ends; It is determined whether the average value is lower than or equal to the temperature threshold. If so, the temperature of the end is increased.
9. The method for preventing condensation water of plug sliding doors and ends of EMUs according to claim 6 or 8, characterized in that: Also includes: Setting a second end temperature threshold; wherein the second end temperature threshold is greater than the first end temperature threshold; After the temperature of the end portion is increased, it is determined whether the real-time temperature of the end portion is equal to or higher than a second end portion temperature threshold. If so, the temperature increase of the end portion is stopped.
10. The method for preventing condensation water of plug sliding doors and ends of EMUs according to claim 6, characterized in that: Also includes: Obtain the air conditioning status of the EMU and determine whether the air conditioning status is cooling. If not, obtain the real-time temperature of the end and determine whether the real-time temperature of the end is lower than or equal to the first end temperature threshold. If so, increase the temperature of the end.