CN113548075A - Dynamic control system for double-flow system vehicle air tightness - Google Patents
Dynamic control system for double-flow system vehicle air tightness Download PDFInfo
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- CN113548075A CN113548075A CN202110852913.6A CN202110852913A CN113548075A CN 113548075 A CN113548075 A CN 113548075A CN 202110852913 A CN202110852913 A CN 202110852913A CN 113548075 A CN113548075 A CN 113548075A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/0009—Means for controlling or equalizing air pressure shocks in trains, e.g. when passing or crossing in tunnels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Abstract
The invention relates to the technical field of train ventilation control, in particular to a dynamic control system for the air tightness of a double-flow system vehicle, which comprises a positioning module, a control module, controlled air door modules and a timing module, wherein the positioning module positions the real-time position of the vehicle, the control module acquires the real-time position, sends opening degree adjusting signals to all the controlled air door modules on the vehicle according to the real-time position and sends timing signals to the timing module to start timing, the control module acquires the timing duration and judges whether the actual opening degree of the controlled air door modules on each carriage reaches the preset opening degree according to the timing duration, if not, the control module judges whether the actual opening degree is smaller than the preset opening degree, and when the actual opening degree is smaller than the preset opening degree, the control module sends reciprocating adjusting signals to the controlled air door modules. The invention can automatically and dynamically adjust the air pressure in the carriage through the controlled air door module, and reduce the variation of the air pressure when the vehicle runs under two different environments.
Description
Technical Field
The invention relates to the technical field of train ventilation control, in particular to a dynamic control system for air tightness of a double-flow vehicle.
Background
The double-flow vehicle needs to run between areas with different power supply voltages, and the air conditioning unit is used for ensuring comfortable air pressure in a compartment during the transregional running process of the double-flow vehicle. Because the double-flow vehicle has long cross-regional driving mileage, complex and changeable along-line environment, large station spacing and high driving speed, the control of the air pressure in the carriage needs to be dynamically carried out based on the air conditioner group so as to ensure the comfortable air pressure in the carriage.
At present, the atmospheric pressure in to the rail vehicle carriage is maintained by single-speed fan or double speed fan, and the new trend door that supplies new trend to get into is generally only opened and closes two kinds of states, and the return air door is the nonadjustable air door usually, and the control of carriage internal gas pressure goes on through new trend door. When such a control method is used, the air pressure in the cabin of the dual-flow vehicle is very likely to change greatly when the vehicle travels to a partial area, such as a tunnel area or an area with a low traveling speed.
Disclosure of Invention
The invention aims to provide a dynamic control system for air tightness of a double-flow vehicle, which solves the problem that the existing control mode is easy to cause large change of air pressure in a carriage in a partial area.
The dynamic control system for the air tightness of the double-flow vehicle in the scheme comprises a positioning module, a control module, a controlled air door module and a timing module, the positioning module positions the real-time position of the vehicle, the control module acquires the real-time position and sends opening degree adjusting signals to all controlled air door modules on the vehicle according to the real-time position, the control module sends a timing signal to the timing module when sending the opening degree adjusting signal, the timing module starts timing according to the timing signal, the control module acquires the timing duration of the timing module, and judging whether the actual opening degree of the controlled air door module on each compartment reaches the preset opening degree or not according to the timing duration, when the controlled air door module does not reach the preset opening degree, the control module judges whether the actual opening degree is smaller than the preset opening degree, and when the actual opening degree is smaller than the preset opening degree, the control module sends a reciprocating regulation signal to the controlled air door module.
The beneficial effect of this scheme is:
during the running process, the real-time position of the vehicle is obtained through the positioning module, opening degree adjusting signals are sent to all controlled air door modules on the vehicle according to the real-time position, for example, when the vehicle enters a tunnel position, the opening degree adjusting signals are sent to control the controlled air door modules to adjust the opening degree, meanwhile, the timing module is used for timing, whether the adjustment of the controlled air door modules on each compartment reaches the preset opening degree is judged according to the timing duration, if not, the control module is used for judging whether the actual opening degree is smaller than the preset opening degree, if so, reciprocating adjusting signals are sent to the controlled air door modules, the controlled air door modules can reciprocate, the probability of adjusting the controlled air door modules after being clamped is increased, the adjusting results of the controlled air door modules can be found in time, the air pressure in the whole vehicle can be automatically and dynamically adjusted through the controlled air door modules, and the variation of the air pressure of the vehicle when the vehicle runs under two different environments is reduced, prevent the discomfort of passengers caused by too large change of air pressure in the carriage.
Furthermore, the controlled air door module comprises a fresh air controlled unit and a waste air exhaust controlled unit, and the control module controls the fresh air controlled unit and the waste air exhaust controlled unit to be at the same initial opening degree.
The beneficial effects are that: the fresh air controlled unit and the waste air exhaust controlled unit are controlled to be adjusted at the same initial opening degree, and the air pressure in the vehicle can be adjusted in time when the vehicle passes through the tunnel and other positions.
And the control module acquires a voltage feedback signal of the controlled air door module, judges whether the actual opening of the controlled air door module reaches a preset opening according to the voltage feedback signal and the initial opening, and sends an early warning signal to the early warning module to give an early warning prompt when the actual opening does not reach the preset opening.
The beneficial effects are that: and judging whether the actual opening degree reaches the preset opening degree or not according to the voltage feedback signal of the controlled air door and the initial opening degree, and if not, carrying out early warning prompt to timely know the abnormal condition of the controlled air door module.
Further, the control module matches the real-time position with the preset position, when the real-time position is the same as the preset position, the control module sends opening adjusting signals to all controlled air door modules on the vehicle, when the real-time position is different from the preset position, the control module acquires the real-time vehicle speed and compares the real-time vehicle speed with the preset vehicle speed, and when the real-time vehicle speed is greater than the preset vehicle speed, the control module sends opening adjusting signals to all controlled air door modules on the vehicle.
The beneficial effects are that: when the vehicle speed is large, the change of the air flow outside the vehicle is rapid and the change amount is large, so that when the opening degree adjusting signal does not need to be sent at the real-time position, for example, at a place outside a tunnel, the real-time vehicle speed is judged, when the real-time vehicle speed is large, the opening degree adjusting signal is also sent, the comfortableness of the air pressure in the carriage is ensured, before the preset position is not reached, the speed is used as a parameter for triggering the opening degree adjustment, the priority of the position when the preset position is reached and the speed does not reach the preset vehicle body is kept, and the priority does not need to be judged.
Further, the control module acquires the timing duration of the timing module for judgment when the real-time vehicle speed is greater than the preset vehicle speed, the control module stores the real-time position of the real-time vehicle speed greater than the preset vehicle speed as a supplementary adjustment position when the timing duration is greater than a threshold value, and the control module stores the real-time position of the real-time vehicle speed less than the preset vehicle speed as a stop adjustment position when the timing duration is less than the threshold value.
The beneficial effects are that: the time length that the real-time vehicle speed is greater than the preset vehicle speed is judged, the supplementary adjusting position is recorded when the time length is longer, the adjusting stopping position is recorded when the time length is shorter, follow-up timing is not carried out any more when the real-time vehicle speed is larger, and the control response is quicker.
Further, the control module acquires a real-time position and matches the supplementary adjusting position and the stopping adjusting position when the real-time vehicle speed is greater than the preset vehicle speed, and the control module sends opening adjusting signals to all controlled air door modules on the vehicle when the real-time position is the supplementary adjusting position.
The beneficial effects are that: when the real-time vehicle speed is detected to be larger than the preset vehicle speed again, the matching is directly carried out, so that the adjustment of the controlled air door module is more accurate, and too frequent adjustment caused by adjustment on a shorter path is avoided.
Further, the control module calculates a distance value between the real-time position and the supplementary adjusting position, judges whether the distance value is smaller than a preset distance, and when the distance value is smaller than the preset distance, the control module calculates an acceleration value according to the successively acquired real-time speed and sequentially sends opening adjusting signals to the controlled air door modules on the vehicle in the direction from the head to the tail of the vehicle according to the acceleration value.
The beneficial effects are that: because the acceleration process of vehicle is carried out gradually and needs certain length of time, so, this application is just about to reach the position of accelerating through the vehicle, and the controlled air door module on the process control vehicle that is based on accelerating in advance adjusts in proper order, and the accommodation process is softer, can not produce great noise, can not let the passenger sense corresponding regulation operation, improves passenger's experience and feels.
Drawings
FIG. 1 is a schematic block diagram of a dynamic control system for dual flow vehicle air tightness in accordance with a first embodiment of the present invention.
Detailed Description
The following is a more detailed description of the present invention by way of specific embodiments.
Example one
Dynamic control of the air tightness of a dual flow vehicle, as shown in figure 1: the system comprises a positioning module, a control module, a controlled air door module, a timing module and an early warning module, wherein the positioning module is used for positioning the real-time position of a vehicle, and the positioning module can be used for positioning the real-time position by sensing the signal of a beacon on a track; the control module acquires a real-time position and sends opening adjusting signals to all controlled air door modules on the vehicle according to the real-time position, the adjusting signals comprise closing signals and opening signals of the controlled air door modules or opening signals Germany with preset opening, the control module can use a first SOC chip, the controlled air door modules comprise a fresh air controlled unit and a waste air exhaust controlled unit, the fresh air controlled unit is installed on a fresh air inlet of the air conditioning unit, the waste air exhaust controlled unit is installed on a waste air exhaust outlet of the air conditioning unit, and the fresh air controlled unit and the waste air exhaust controlled unit can use the existing pressure wave valve; the control module sends a timing signal to the timing module when sending an opening adjusting signal, the timing module starts timing according to the timing signal, the timing module can use the existing timing chip or timing program to carry out timing, the control module obtains the timing duration of the timing module and judges whether the adjustment of the controlled air door module on each carriage reaches a preset opening according to the timing duration, for example, the duration of a fresh air controlled unit from full opening to full closing is 4s, the duration of a waste air exhaust controlled unit from full opening to full closing is 7s, when the controlled air door module does not reach the preset opening, the control module judges whether the actual opening is smaller than the preset opening, when the actual opening is smaller than the preset opening, the control module sends a reciprocating adjusting signal to the controlled air door module, and the reciprocating adjustment is to enable the controlled air door module to rotate in a reciprocating mode.
The control module controls the fresh air controlled unit and the waste air exhaust controlled unit to be at the same initial opening degree, for example, the fresh air controlled unit and the waste air exhaust controlled unit are controlled to be at full opening simultaneously.
The control module obtains a voltage feedback signal of the controlled air door module, for example, a fresh air controlled unit feeds back 8.5V voltage when being fully opened, feeds back 6V voltage when being 2/3, feeds back 3V voltage when being 1/3 and feeds back 0V voltage when being fully closed, a waste air controlled unit feeds back 6V voltage when being fully opened, feeds back 4V voltage when being 2/3, feeds back 2V voltage when being 1/3 and feeds back 0V voltage when being fully closed, the control module judges whether the opening state of the controlled air door module is accurate according to the voltage feedback signal and the initial opening, for example, the voltage feedback signal of the fresh air controlled unit is 8.5V, the timing duration representing the opening state is less than 4s, the opening state is inaccurate, when the opening state is inaccurate, the control module sends an early warning signal to the early warning module for early warning prompt, the early warning module can give an early warning prompt through voice, the opening degree of the controlled air door module can be set according to actual requirements, and the opening degree of the controlled air door module is adjusted according to the setting.
The specific implementation process is as follows:
in the running process of the double-flow system vehicle, the real-time position of the vehicle is obtained through the positioning module, the control module sends opening degree adjusting signals to all controlled air door modules on the vehicle according to the real-time position, for example, when the real-time position indicates that the vehicle runs on a normal road, the sent adjusting signals are used for opening the fresh air controlled unit and the waste air exhaust controlled unit, namely, the fresh air controlled unit and the waste air exhaust controlled unit are controlled to be opened at the same opening degree, for example, the fresh air controlled unit and the waste air exhaust controlled unit are fully opened; the control module sends an opening degree adjusting signal and sends a timing signal to the timing module to enable the timing module to start timing, and whether the adjustment of the controlled air door module on each compartment reaches a preset opening degree is judged according to the timing duration; in the process of adjusting the controlled air door module, a voltage feedback signal of the controlled air door module is obtained through the control module, whether the opening state is accurate or not is judged according to the voltage feedback signal and the initial opening, for example, when the timing duration indicates that the controlled air door module is fully opened, the voltage corresponding to the voltage feedback signal is smaller than 8.5v or 6v, the preset opening is fully opened, and if the timing duration is not accurate, the control module controls the early warning module to give an early warning prompt.
The airtightness in the present invention means maintaining a preset air pressure strength in the vehicle compartment.
The first regulation result that can in time discover controlled air door module of this embodiment, can adjust the atmospheric pressure in the carriage automatically and dynamically through controlled air door module, reduce the vehicle atmospheric pressure's when two kinds of different environment travel variation, prevent that the atmospheric pressure change in the carriage is too big to cause passenger's discomfort.
Example two
The difference from the first embodiment is that the control module matches the real-time position with the preset position, when the real-time position is the same as the preset position, the control module sends opening adjusting signals to all controlled air door modules on the vehicle, when the real-time position is different from the preset position, the control module acquires the real-time vehicle speed and compares the real-time vehicle speed with the preset vehicle speed, the real-time vehicle speed can be directly obtained from a control system of the vehicle, and when the real-time vehicle speed is greater than the preset vehicle speed, the control module sends the opening adjusting signals to all the controlled air door modules on the vehicle; the control module acquires the timing time length of the timing module for judgment when the real-time vehicle speed is greater than the preset vehicle speed, the control module stores the real-time position of the real-time vehicle speed greater than the preset vehicle speed as a supplementary adjustment position when the timing time length is greater than a threshold value, and the control module stores the real-time position of the real-time vehicle speed less than the preset vehicle speed as a stop adjustment position when the timing time length is less than the threshold value, namely the control module judges the running time length of the real-time vehicle speed greater than the preset vehicle speed and records the position with longer running time length; the control module acquires a real-time position to match with the supplementary adjusting position and the stopping adjusting position when the real-time vehicle speed is greater than the preset vehicle speed, and sends opening adjusting signals to all controlled air door modules on the vehicle when the real-time position is the supplementary adjusting position.
Because the speed of a motor vehicle is great, the change of the air current outside the motor vehicle is very fast and the variable quantity is great, if the real-time section with the fast speed of a motor vehicle is not recorded, the air pressure in the carriage is easy to be abnormal. This embodiment is two to real-time speed of a motor vehicle is greater than the length of time of predetermineeing the speed of a motor vehicle and is judged, record when long greatly and supply the adjusting position, record when long less and stop the adjusting position, when detecting real-time speed of a motor vehicle and being greater than predetermineeing the speed of a motor vehicle, directly match, when real-time position need not send aperture accommodate signal, for example when the place outside the tunnel, judge real-time speed of a motor vehicle, also send aperture accommodate signal when real-time speed of a motor vehicle is great, ensure the travelling comfort of carriage internal gas pressure, let the regulation of controlled air door module more accurate, also avoid adjusting on short route and cause the regulation too frequently.
EXAMPLE III
The difference from the second embodiment is that the control module calculates a distance value between the real-time position and the supplementary adjustment position, the real-time position and the supplementary adjustment position can be represented by coordinate values, the calculation of the distance value can be calculated according to the coordinate values, the control module judges whether the distance value is smaller than a preset distance, when the distance value is smaller than the preset distance, the control module calculates an acceleration value according to a real-time vehicle speed acquired successively, namely, the real-time vehicle speed acquired later is subtracted from a real-time speed acquired earlier to obtain the acceleration value, the control module sequentially sends opening adjustment signals to a controlled air door module on the vehicle in the direction from the vehicle head to the vehicle tail according to the acceleration value, and for example, the control module sends corresponding opening adjustment signals according to the position of the acceleration value within the preset acceleration range.
Because the acceleration process of vehicle is carried out gradually and needs certain length of time, so, this application is just about to reach the position of accelerating through the vehicle, and the controlled air door module on the process control vehicle that is based on accelerating in advance adjusts in proper order, and the accommodation process is softer, can not produce great noise, can not let the passenger sense corresponding regulation operation, improves passenger's experience and feels.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. The dynamic control system for the air tightness of the double-flow vehicle is characterized by comprising the following components: including orientation module, control module, controlled air door module and timing module, orientation module fixes a position the real-time position of vehicle, control module acquires real-time position and sends the aperture regulation signal according to real-time position to all controlled air door modules on the vehicle, control module sends timing signal to timing module when sending the aperture regulation signal, timing module starts regularly according to timing signal, control module acquires the timing length of timing module to whether the actual aperture of judging controlled air door module on every carriage reaches preset aperture according to the length of timing length, when controlled air door module does not reach preset aperture, control module judges whether actual aperture is less than preset aperture, when actual aperture is less than preset aperture, control module sends reciprocal regulation signal to controlled air door module.
2. The dynamic control system of dual flow vehicle air tightness according to claim 1, characterized in that: the controlled air door module comprises a fresh air controlled unit and a waste air exhaust controlled unit, and the control module controls the fresh air controlled unit and the waste air exhaust controlled unit to be at the same initial opening degree.
3. The dynamic control system of dual flow vehicle air tightness according to claim 2, characterized in that: still include the early warning module, control module acquires the voltage feedback signal of controlled air door module to judge whether the actual aperture of controlled air door module reaches and predetermines the aperture according to voltage feedback signal and initial aperture, when actual aperture does not reach and predetermines the aperture, control module sends early warning signal to the early warning module and carries out the early warning suggestion.
4. The dynamic control system of dual flow vehicle air tightness according to claim 2, characterized in that: the control module matches the real-time position with the preset position, when the real-time position is the same as the preset position, the control module sends opening adjusting signals to all controlled air door modules on the vehicle, when the real-time position is different from the preset position, the control module acquires the real-time vehicle speed and compares the real-time vehicle speed with the preset vehicle speed, and when the real-time vehicle speed is greater than the preset vehicle speed, the control module sends opening adjusting signals to all controlled air door modules on the vehicle.
5. The dynamic control system of dual flow vehicle air tightness according to claim 4, characterized in that: the control module acquires the timing duration of the timing module for judgment when the real-time vehicle speed is greater than the preset vehicle speed, the control module stores the real-time position of the real-time vehicle speed greater than the preset vehicle speed as a supplementary adjustment position when the timing duration is greater than a threshold value, and the control module stores the real-time position of the real-time vehicle speed less than the preset vehicle speed as a stop adjustment position when the timing duration is less than the threshold value.
6. The dynamic control system of dual flow vehicle air tightness according to claim 5, characterized in that: the control module acquires a real-time position and matches the supplementary adjusting position and the stopping adjusting position when the real-time vehicle speed is greater than the preset vehicle speed, and the control module sends opening adjusting signals to all controlled air door modules on the vehicle when the real-time position is the supplementary adjusting position.
7. The dynamic control system of dual flow vehicle air tightness according to claim 5, characterized in that: the control module calculates the distance value between the real-time position and the supplementary adjusting position and judges whether the distance value is smaller than a preset distance, when the distance value is smaller than the preset distance, the control module calculates an acceleration value according to the real-time speed acquired successively and sends opening adjusting signals to the controlled air door modules on the vehicle in the direction from the head to the tail of the vehicle according to the acceleration value.
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| CN202110852913.6A CN113548075B (en) | 2021-07-27 | 2021-07-27 | Dynamic control system for double-flow system vehicle air tightness |
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| CN202110852913.6A CN113548075B (en) | 2021-07-27 | 2021-07-27 | Dynamic control system for double-flow system vehicle air tightness |
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| CN103963795A (en) * | 2013-08-29 | 2014-08-06 | 南车南京浦镇车辆有限公司 | Rapid metro vehicle pressure wave control method |
| CN104057799A (en) * | 2013-03-18 | 2014-09-24 | 马自达汽车株式会社 | Vehicle Air-conditioning Control Apparatus |
| CN104875763A (en) * | 2015-05-20 | 2015-09-02 | 常州大学 | Railway passenger vehicle fresh air mixing device |
| CN110578964A (en) * | 2019-09-19 | 2019-12-17 | 海信（山东）空调有限公司 | Air conditioner indoor unit and control method thereof |
| CN210707394U (en) * | 2019-08-09 | 2020-06-09 | 中车青岛四方机车车辆股份有限公司 | Air conditioning unit and rail vehicle |
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2021
- 2021-07-27 CN CN202110852913.6A patent/CN113548075B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057799A (en) * | 2013-03-18 | 2014-09-24 | 马自达汽车株式会社 | Vehicle Air-conditioning Control Apparatus |
| CN103963795A (en) * | 2013-08-29 | 2014-08-06 | 南车南京浦镇车辆有限公司 | Rapid metro vehicle pressure wave control method |
| CN104875763A (en) * | 2015-05-20 | 2015-09-02 | 常州大学 | Railway passenger vehicle fresh air mixing device |
| CN210707394U (en) * | 2019-08-09 | 2020-06-09 | 中车青岛四方机车车辆股份有限公司 | Air conditioning unit and rail vehicle |
| CN110578964A (en) * | 2019-09-19 | 2019-12-17 | 海信（山东）空调有限公司 | Air conditioner indoor unit and control method thereof |
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