CN112066069B - Intelligent blowdown system of air cylinder and control method thereof - Google Patents

Intelligent blowdown system of air cylinder and control method thereof Download PDF

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Publication number
CN112066069B
CN112066069B CN202010858704.8A CN202010858704A CN112066069B CN 112066069 B CN112066069 B CN 112066069B CN 202010858704 A CN202010858704 A CN 202010858704A CN 112066069 B CN112066069 B CN 112066069B
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water storage
storage box
intelligent
control module
drain valve
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CN112066069A (en
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黄叶明
凌杰
李瑞红
李敏
黄涛
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Anhui Ankai Automobile Co Ltd
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Anhui Ankai Automobile Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/002—Air treatment devices
    • B60T17/004—Draining and drying devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/005—Electrical or magnetic means for measuring fluid parameters

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses an intelligent blowdown system of an air reservoir and a control method thereof, and the intelligent blowdown system comprises a control switch, an electronic controller and an intelligent drain valve, wherein the intelligent drain valve comprises a protective box body and a protective cover plate, a water storage box is fixedly connected inside the protective box body, a heating plate is fixedly connected to one side of the water storage box, a temperature sensor and a humidity sensor are fixedly connected to the other side of the water storage box, a connecting plate and a pressure sensor are arranged on one side, away from the protective box body, of the water storage box, an electromagnetic valve is fixedly connected to one side, away from the water storage box, of the connecting plate, a water storage box cover plate is fixedly connected to the upper side of the water storage box, and a second connecting bolt is arranged in the center of the water storage box cover plate; according to the intelligent drain valve, the temperature sensor and the heating sheet are arranged in the intelligent drain valve, so that the risk of icing of a gas circuit is reduced; the invention has simple installation and convenient disassembly, and is convenient for maintenance and slag discharge.

Description

Intelligent blowdown system of air cylinder and control method thereof
Technical Field
The invention belongs to the technical field of pollution discharge of an air cylinder for a vehicle, and particularly relates to an intelligent pollution discharge system of the air cylinder and a control method thereof.
Background
Many systems in automobiles use compressed gas as a power source, such as brake systems, air suspensions, door pumps, air bag seats, etc., and the air reservoir for automobiles is the component for storing the compressed gas. Natural air has a certain humidity, and according to the thermodynamic principle, water can be separated out after the natural air is compressed. Most of the water separated out from the compressed air system is stored in the air storage cylinder, and the water is easy to corrode the air storage cylinder and the pipeline, and the pipeline is easy to freeze and block in winter. Heavy vehicles basically adopt pneumatic braking, and the vehicle braking safety is easily influenced by accumulated water in the air storage cylinder. Therefore, the accumulated water in the air storage cylinder must be drained in time.
Application number is 201220554155.6's an air receiver blowoff valve, including blowdown valve body, sealed dabber, dabber return to the flavor spring, drain, blowdown switch and blowdown switch base constitution, this technical scheme has improved the sealing reliability and the life of blowoff valve. But this scheme can only carry out the blowdown through blow off switch to the air receiver, can not in time carry out the early warning to the state of air receiver inside and remind, also can't realize automatic drainage according to the air receiver internal state simultaneously.
The scheme solves the defects of the existing air cylinder pollution discharge system to a certain extent, but the air cylinder pollution discharge system still has places worth improving in aspects of pollution discharge opportunity, state early warning and the like.
Disclosure of Invention
In order to solve the problems of the drain valve of the air cylinder, the invention provides an intelligent blowdown system of the air cylinder and a control method thereof, wherein the intelligent blowdown system comprises a control switch, an electronic controller and an intelligent drain valve; according to the intelligent drain valve, the temperature sensor is arranged in the intelligent drain valve, when the temperature in the intelligent drain valve is below zero, the intelligent control module sends a starting instruction to the heating sheet, the heating sheet can heat the intelligent drain valve after being started, and the risk of freezing a gas path is reduced; the invention is provided with a fault detection unit which detects the self fault of the system and more than twenty faults such as overhigh air pressure, overlow air leakage and the like of the air storage cylinder, sends fault codes, fault time and system states to a data storage unit and carries out maintenance analysis; the invention has the fault alarm function, and can alarm the self fault of the system and the faults of over-high and over-low air pressure of the air storage cylinder in a classified manner and remind a driver in time; the slag-absorbing magnet is arranged, so that fine impurities and ferromagnetic impurities can be prevented from influencing the closing of the electromagnetic valve; the intelligent drain valve is provided with the protective box body and the protective cover plate, so that the intelligent drain valve can be prevented from being damaged by sand and stone impact, and meanwhile, gas can be prevented from directly impacting objects at the outlet of the exhaust hole during drainage and exhaust; the invention has simple installation without changing the structure of the original air cylinder; the disassembly is convenient, and the maintenance and the slag discharge are convenient.
The purpose of the invention can be realized by the following technical scheme: an intelligent blowdown system of an air reservoir comprises a control switch, an electronic controller and an intelligent drain valve;
the intelligent drain valve comprises a protective box body and a protective cover plate, wherein a water storage box is fixedly connected inside the protective box body, a heating plate is fixedly connected to one side of the water storage box, a temperature sensor and a humidity sensor are fixedly connected to the other side of the water storage box, a connecting plate and a pressure sensor are arranged on one side, away from the protective box body, of the water storage box, a second wire harness is arranged on one side, away from the water storage box, of the pressure sensor, a solenoid valve is fixedly connected to one side, away from the water storage box, of the connecting plate, a third wire harness is fixedly connected to one side, away from the connecting plate, of the solenoid valve, a water storage box cover plate is fixedly connected to the upper side of the water storage box, a second connecting bolt is arranged in the center of the water storage box cover plate, a filter screen is sleeved on the inner side of the second connecting bolt, a connecting table is welded to the lower side of the water storage box, and a slag-absorbing magnet is fixedly connected to the lower side of the connecting table; the model of the temperature sensor is TR/02010, the model of the humidity sensor is DHT11, and the model of the pressure sensor is PT 124B-280;
the electronic controller comprises a control module, a temperature monitoring unit, a speed detection unit, a fault detection unit and a data storage unit, wherein the control module is in linear connection with a control switch and the intelligent drain valve;
the control switch afterbody is provided with the fourth pencil, there are control button and alarm lamp control switch upside, control button and alarm lamp are the symmetry and set up.
Preferably, the water storage box is connected with the temperature sensor through a first fixing bolt, the water storage box is connected with the water storage box cover plate through a second fixing bolt, and the heating plate is connected with the water storage box through a third fixing bolt.
Preferably, a first connecting bolt is fixedly connected to the outer side of the protection box body on the opposite side of the heating sheet, and a first wire harness is arranged on the inner side of the first connecting bolt.
Preferably, the temperature monitoring unit is used for detecting the ambient temperature in real time and sending the ambient temperature to the data storage unit through the control module, and the ambient temperature value is marked as Ht1T1 represents the measurement time of the ambient temperature value; the speed detection unit is used for extracting the speed of the vehicle and the rotating speed of the transmitter through the CAN signal and transmitting the speed and the rotating speed to the data storage unit through the control module, and the speed is marked as VCt2Marking engine speed as VFt3And t2 represents the measurement time of the vehicle speedAnd t3 represents the measurement time of the transmitter rotation speed.
Preferably, the fault detection unit is electrically connected with the control module, and the fault detection unit is used for performing fault judgment on the information received by the control module and sending a corresponding fault instruction to the control module.
Preferably, the data storage unit is electrically connected with the control module, and the data storage unit is used for storing ambient temperature, vehicle speed, engine speed and vehicle fault parameters, and the vehicle fault parameters comprise fault codes and fault time.
Preferably, the control method of the system includes the steps of:
the method comprises the following steps: the method comprises the steps that the air pressure of an air storage cylinder is detected through a pressure sensor in an intelligent drain valve and marked as P, the humidity value in the intelligent drain valve is detected through a humidity sensor and marked as W, the temperature in the intelligent drain valve is detected through a temperature sensor and marked as K, and the air pressure, the humidity value and the temperature are sent to a fault detection unit through a control module;
step two: the fault detection unit sends the humidity value and the temperature to the data storage unit for backup when receiving the humidity value and the temperature, and the formula is utilized
Figure BDA0002647261580000031
The method comprises the steps of obtaining an icing coefficient theta, wherein alpha and beta are specific proportionality coefficients, sending a starting command to a heating sheet through a control module when theta is larger than a preset threshold value, and heating an intelligent drain valve by opening the heating sheet to prevent the intelligent drain valve from icing under the condition of low temperature;
step three: when receiving the air pressure, the fault detection unit sends the air pressure to the data storage unit for backup, analyzes the air pressure value, and sends a low-pressure alarm instruction to an alarm lamp of the control switch through the control module when P is less than or equal to L1; when the P is more than or equal to L1 and less than or equal to L2, the control module does not generate an alarm instruction; when P is more than or equal to L2, a high-voltage alarm command is sent to an alarm lamp of the control switch through the control module, wherein L1 is more than or equal to 0 and is more than or equal to L2;
step four: when the alarm lamp receives a low-voltage alarm instruction, the alarm lamp quickly flashes; the alarm lamp begins to alternately flash at high speed and low speed when receiving a high-pressure alarm instruction, a driver or a maintenance worker opens the electromagnetic valve for drainage or exhaust by pressing the control button for 5 seconds, and when the alarm duration exceeds a preset threshold value, the control module automatically opens the electromagnetic valve for deflation and pressure reduction.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the intelligent drain valve, the temperature sensor is arranged in the intelligent drain valve, when the temperature in the intelligent drain valve is below zero, the intelligent control module sends a starting instruction to the heating sheet, the heating sheet can heat the intelligent drain valve after being started, and the risk of freezing a gas path is reduced;
2. the invention is provided with a fault detection unit which detects the self fault of the system and more than twenty faults such as overhigh air pressure, overlow air leakage and the like of the air storage cylinder, sends fault codes, fault time and system states to a data storage unit and carries out maintenance analysis;
3. the invention has the fault alarm function, and can alarm the self fault of the system and the faults of over-high and over-low air pressure of the air storage cylinder in a classified manner and remind a driver in time; the slag-absorbing magnet is arranged, so that fine impurities and ferromagnetic impurities can be prevented from influencing the closing of the electromagnetic valve; the intelligent drain valve is provided with the protective box body and the protective cover plate, so that the intelligent drain valve can be prevented from being damaged by sand and stone impact, and meanwhile, gas can be prevented from directly impacting objects at the outlet of the exhaust hole during drainage and exhaust;
4. the invention has simple installation without changing the structure of the original air cylinder; the disassembly is convenient, and the maintenance and the slag discharge are convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of an intelligent drain valve of the present invention;
FIG. 2 is a top view of the interior of the intelligent drain valve of the present invention;
FIG. 3 is a bottom view of the interior of the intelligent drain valve of the present invention;
FIG. 4 is a schematic view of the installation of the intelligent drain valve and the air reservoir of the present invention;
FIG. 5 is a schematic diagram of a control switch according to the present invention;
FIG. 6 is a schematic diagram of the system of the present invention;
fig. 7 is a schematic diagram of the fault types of the present invention.
The following drawings: 1. a protective box body; 2. a protective cover plate; 3. a filter screen; 4. a first wire harness; 5. a first connecting bolt; 6. a pressure sensor; 7. a humidity sensor; 8. a temperature sensor; 9. a first fixing bolt; 10. a water storage box; 11. a water storage box cover plate; 12. a second connecting bolt; 13. a second fixing bolt; 14. a heating plate; 15. a third fixing bolt; 16. a connecting plate; 17. an electromagnetic valve; 18. a connecting table; 19. a slag-absorbing magnet; 20. a second wire harness; 21. a third wire harness; 22. a control switch; 23. a fourth wire harness; 24. a control button; 25. an alarm lamp.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-7, an intelligent blowdown system for an air reservoir comprises a control switch 22, an electronic controller and an intelligent drain valve;
the intelligent drain valve comprises a protective box body 1 and a protective cover plate 2, a water storage box 10 is fixedly connected in the protective box body 1, a heating piece 14 is fixedly connected on one side of the water storage box 10, a temperature sensor 8 and a humidity sensor 7 are fixedly connected on the other side of the water storage box 10, a connecting plate 16 and a pressure sensor 6 are arranged on one side of the water storage box 10 away from the protective box body 1, a second wire harness 20 is arranged on one side of the pressure sensor 6 away from the water storage box 10, an electromagnetic valve 17 is fixedly connected on one side of the connecting plate 16 away from the water storage box 10, a third wire harness 21 is fixedly connected on one side of the electromagnetic valve 17 away from the connecting plate 16, a water storage box cover plate 11 is fixedly connected on the upper side of the water storage box 10, a second connecting bolt 12 is arranged at the central position of the water storage box cover plate 11, a filter screen 3 is sleeved on the inner side of the second connecting bolt 12, and a connecting platform 18 is welded on the lower side of the water storage box 10, a slag-absorbing magnet 19 is fixedly connected to the lower side of the connecting table 18;
the electronic controller comprises a control module, a temperature monitoring unit, a speed detection unit, a fault detection unit and a data storage unit, wherein the control module is in linear connection with the control switch 22 and the intelligent drain valve;
the tail of the control switch 22 is provided with a fourth wiring harness 23, the upper side of the control switch 22 is provided with a control button 24 and an alarm lamp 25, and the control button 24 and the alarm lamp 25 are symmetrically arranged.
Further, the water storage box 10 is connected with the temperature sensor 8 through a first fixing bolt 9, the water storage box 10 is connected with the water storage box cover plate 11 through a second fixing bolt 13, and the heating plate 14 is connected with the water storage box 10 through a third fixing bolt 15.
Further, a first connecting bolt 5 is fixedly connected to the outer side of the protective box 1 opposite to the heating plate 14, and a first wire harness 4 is arranged on the inner side of the first connecting bolt 5.
Furthermore, the temperature monitoring unit is used for detecting the ambient temperature in real time and sending the ambient temperature to the data storage unit through the control module, and the ambient temperature value is marked as Ht1T1 represents the measurement time of the ambient temperature value; the speed detection unit is used for extracting the speed of the vehicle and the rotating speed of the transmitter through the CAN signal and transmitting the speed and the rotating speed to the data storage unit through the control module, and the speed is marked as VCt2Marking engine speed as VFt3T2 represents the measurement time of the vehicle speed, and t3 represents the measurement time of the transmitter rotation speed.
Furthermore, the fault detection unit is electrically connected with the control module, and the fault detection unit is used for performing fault judgment on the information received by the control module and sending a corresponding fault instruction to the control module.
Further, the data storage unit is electrically connected with the control module, and the data storage unit is used for storing ambient temperature, vehicle speed, engine speed and vehicle fault parameters, and the vehicle fault parameters comprise fault codes and fault time.
Further, the control method of the intelligent pollution discharge system of the air cylinder comprises the following steps:
the method comprises the following steps: the method comprises the steps that the air pressure of an air storage cylinder is detected through a pressure sensor 6 in the intelligent drain valve and marked as P, the humidity value in the intelligent drain valve is detected through a humidity sensor 7 and marked as W, the temperature in the intelligent drain valve is detected through a temperature sensor 8 and marked as K, and the air pressure, the humidity value and the temperature are sent to a fault detection unit through a control module;
step two: the fault detection unit sends the humidity value and the temperature to the data storage unit for backup when receiving the humidity value and the temperature, and the formula is utilized
Figure BDA0002647261580000071
The freezing coefficient theta is obtained, when the theta is larger than a preset threshold value, a starting command is sent to the heating sheet 14 through the control module, the heating sheet 14 is opened to heat the intelligent drain valve, and the intelligent drain valve is prevented from freezing under the low-temperature condition;
step three: when receiving the air pressure, the fault detection unit sends the air pressure to the data storage unit for backup, analyzes the air pressure value, and sends a low-pressure alarm instruction to the alarm lamp 25 of the control switch 22 through the control module when P is less than or equal to L1; when the P is more than or equal to L1 and less than or equal to L2, the control module does not generate an alarm instruction; when P is more than or equal to L2, a high-voltage alarm command is sent to an alarm lamp 25 of the control switch 22 through the control module, wherein L1 is more than or equal to 0 and L2 is more than or equal to 0;
step four: when the alarm lamp 25 receives a low-voltage alarm instruction, the lamp begins to flash rapidly; the alarm lamp 25 begins to alternately flash at high and low speeds when receiving a high-pressure alarm instruction, a driver or a maintenance worker opens the electromagnetic valve 17 for drainage or exhaust by pressing the control button 24 for 5 seconds, and when the alarm duration exceeds a preset threshold value, the control module automatically opens the electromagnetic valve 17 to deflate and reduce the pressure.
The above formulas are all quantitative calculation, the formula is a formula obtained by acquiring a large amount of data and performing software simulation to obtain the latest real situation, and the preset parameters in the formula are set by the technical personnel in the field according to the actual situation.
The working principle of the invention is as follows: the method comprises the steps that the air pressure of an air storage cylinder is detected through a pressure sensor 6 in the intelligent drain valve and marked as P, the humidity value in the intelligent drain valve is detected through a humidity sensor 7 and marked as W, the temperature in the intelligent drain valve is detected through a temperature sensor 8 and marked as K, and the air pressure, the humidity value and the temperature are sent to a fault detection unit through a control module; the fault detection unit sends the humidity value and the temperature to the data storage unit for backup when receiving the humidity value and the temperature, and the formula is utilized
Figure BDA0002647261580000081
The freezing coefficient theta is obtained, when the theta is larger than a preset threshold value, a starting command is sent to the heating sheet 14 through the control module, the heating sheet 14 is opened to heat the intelligent drain valve, and the intelligent drain valve is prevented from freezing under the low-temperature condition; when receiving the air pressure, the fault detection unit sends the air pressure to the data storage unit for backup, analyzes the air pressure value, and sends a low-pressure alarm instruction to the alarm lamp 25 of the control switch 22 through the control module when P is less than or equal to L1; when the P is more than or equal to L1 and less than or equal to L2, the control module does not generate an alarm instruction; when P is more than or equal to L2, a high-voltage alarm command is sent to an alarm lamp 25 of the control switch 22 through the control module, wherein L1 is more than or equal to 0 and L2 is more than or equal to 0; when the alarm lamp 25 receives a low-voltage alarm instruction, the lamp begins to flash rapidly; the alarm lamp 25 begins to alternately flash at high and low speeds when receiving a high-pressure alarm instruction, a driver or a maintenance worker opens the electromagnetic valve 17 for drainage or exhaust by pressing the control button 24 for 5 seconds, and when the alarm duration exceeds a preset threshold value, the control module automatically opens the electromagnetic valve 17 to deflate and reduce the pressure.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. An intelligent blowdown system of an air reservoir is characterized by comprising a control switch (22), an electronic controller and an intelligent drain valve;
the intelligent drain valve comprises a protective box body (1) and a protective cover plate (2), a water storage box (10) is fixedly connected inside the protective box body (1), a heating piece (14) is fixedly connected to one side of the water storage box (10), a temperature sensor (8) and a humidity sensor (7) are fixedly connected to the other side of the water storage box (10), a connecting plate (16) and a pressure sensor (6) are arranged on one side, away from the protective box body (1), of the water storage box (10), a second wiring harness (20) is arranged on one side, away from the water storage box (10), of the pressure sensor (6), an electromagnetic valve (17) is fixedly connected to one side, away from the connecting plate (16), of the electromagnetic valve (17), a third wiring harness (21) is fixedly connected to one side, away from the connecting plate (16), of the water storage box (10), a water storage box cover plate (11) is fixedly connected to the center, a second connecting bolt (12) is arranged on the water storage box cover plate (11), a filter screen (3) is sleeved on the inner side of the second connecting bolt (12), a connecting table (18) is welded on the lower side of the water storage box (10), and a slag absorbing magnet (19) is fixedly connected on the lower side of the connecting table (18);
the electronic controller comprises a control module, a temperature monitoring unit, a speed detection unit, a fault detection unit and a data storage unit, wherein the control module is in linear connection with a control switch (22) and the intelligent drain valve;
a fourth wiring harness (23) is arranged at the tail of the control switch (22), a control button (24) and an alarm lamp (25) are arranged on the upper side of the control switch (22), and the control button (24) and the alarm lamp (25) are symmetrically arranged;
the control method of the system comprises the following steps:
the method comprises the following steps: the air pressure of the air storage cylinder is detected through a pressure sensor (6) in the intelligent drain valve and marked as P, the humidity value in the intelligent drain valve is detected through a humidity sensor (7) and marked as W, the temperature in the intelligent drain valve is detected through a temperature sensor (8) and marked as K, and the air pressure, the humidity value and the temperature are sent to a fault detection unit through a control module;
step two: the fault detection unit sends the humidity value and the temperature to the data storage unit for backup when receiving the humidity value and the temperature, and the formula is utilized
Figure FDA0003537881010000021
The freezing coefficient theta is obtained, when the theta is larger than a preset threshold value, a starting command is sent to the heating sheet (14) through the control module, the heating sheet (14) is opened to heat the intelligent drain valve, and the intelligent drain valve is prevented from freezing under the condition of low temperature; wherein alpha and beta are specific proportionality coefficients;
step three: when receiving the air pressure, the fault detection unit sends the air pressure to the data storage unit for backup, analyzes the air pressure value, and sends a low-pressure alarm instruction to an alarm lamp (25) of a control switch (22) through the control module when P is less than or equal to L1; when the P is more than or equal to L1 and less than or equal to L2, the control module does not generate an alarm instruction; when P is larger than or equal to L2, a high-pressure alarm command is sent to an alarm lamp (25) of a control switch (22) through a control module, wherein L1 and L2 are air pressure thresholds, and L1 is larger than or equal to 0 and smaller than or equal to L2;
step four: when the alarm lamp (25) receives a low-voltage alarm instruction, the lamp begins to flash rapidly; the alarm lamp (25) begins fast and slow scintillation in turn when receiving high pressure alarm instruction, and driving or maintenance person opens solenoid valve (17) through long-press control button (24) and carries out drainage or exhaust, and when warning duration exceeded the preset threshold value, control module opened solenoid valve (17) automatically and deflated and steps down.
2. The intelligent blowdown system of the air cylinder according to claim 1, wherein the water storage box (10) is connected with the temperature sensor (8) through a first fixing bolt (9), the water storage box (10) is connected with the water storage box cover plate (11) through a second fixing bolt (13), and the heating plate (14) is connected with the water storage box (10) through a third fixing bolt (15).
3. The intelligent pollution discharge system for the air cylinder as claimed in claim 1, wherein a first connecting bolt (5) is fixedly connected to the outer side of the protective box body (1) opposite to the heating plate (14), and a first wiring harness (4) is arranged on the inner side of the first connecting bolt (5).
4. The intelligent blowdown system of the air cylinder as claimed in claim 1, wherein the temperature monitoring unit is used for detecting the ambient temperature in real time and sending the ambient temperature to the data storage unit through the control module, and marking the ambient temperature value as Ht1T1 represents the measurement time of the ambient temperature value; the speed detection unit is used for extracting the speed of the vehicle and the rotating speed of the transmitter through the CAN signal and transmitting the speed and the rotating speed to the data storage unit through the control module, and the speed is marked as VCt2Marking engine speed as VFt3T2 represents the measurement time of the vehicle speed, and t3 represents the measurement time of the transmitter rotation speed.
5. The intelligent blowdown system of the air cylinder as claimed in claim 1, wherein the fault detection unit is electrically connected with the control module, and is configured to perform fault judgment on information received by the control module and send a corresponding fault instruction to the control module.
6. The intelligent blowdown system of an air cylinder according to claim 1, wherein the data storage unit is electrically connected with the control module, and the data storage unit is used for storing ambient temperature, vehicle speed, engine speed and vehicle fault parameters, and the vehicle fault parameters comprise fault codes and fault time.
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