CN202582911U - Fuzzy control-based microcontrol train air trail system - Google Patents

Abstract

The fuzzy control-based micro-control single-vehicle air test system belongs to the field of train performance detection. The utility model aims to solve the problems of inflexible adjustment of process parameters, low work efficiency and many mistakes of the traditional single-vehicle tester. The utility model is for accurately judging the pros and cons of the braking performance of a vehicle, and finding out a certain braking failure in a certain vehicle, so the vehicle braking performance test is very important. The utility model adopts the fuzzy controller to carry out the single-vehicle braking test, and the pressure sensor collects the wind pressure of the train pipe and the brake cylinder in real time, and after the A/D expansion module performs A/D conversion on the pressure, it is sent to the PLC for data processing , through the PLC to control the on-off of the solenoid valve to realize the automatic control of the air charging, pressure maintaining and decompression test process of the vehicle braking part. All parameter settings and system function operations are displayed and displayed on the touch screen connected with the PLC. operate. The performance of the brake is reliable and meets the operating requirements of the vehicle.

Description

Micro-control bicycle air test system based on fuzzy control

technical field

The utility model relates to a micro-control single-vehicle air test system based on fuzzy control, which belongs to the field of train performance detection.

Background technique

In railway transportation, the braking performance of vehicles is directly related to driving safety. In order to accurately judge the pros and cons of the vehicle's braking performance and find out that a certain vehicle has a certain braking fault, it is very important to test the vehicle's braking performance. Therefore, the Ministry of Railways stipulates that before the new vehicles and repaired vehicles leave the factory or after the brakes have been overhauled, they must be tested with a single-vehicle air test system (single-vehicle tester) in accordance with relevant regulations to check the brakes of the vehicle and the brakes of the entire vehicle. Performance of the device at rest. The single-vehicle braking test checks the performance of the train brake by detecting the pressure of the brake pipe and the brake cylinder, so that the performance of the brake is reliable and meets the operating requirements of the vehicle. The adjustment of process parameters of the traditional single-vehicle tester is inflexible. The use of ordinary pressure sensors cannot meet the standards required by the new process for vehicle leakage. Only manual and single-step control can be realized. The on-site operator and the computer operator communicate through the walkie-talkie, and the work efficiency is low. , many mistakes.

Contents of the invention

The purpose of the utility model is to solve the problems of inflexible adjustment of process parameters, low work efficiency and many mistakes of the traditional bicycle tester, and provides a micro-control bicycle air test system based on fuzzy control.

The fuzzy control-based micro-control bicycle air test system described in the utility model includes a leakage test solenoid valve, an inflation test solenoid valve, a first exhaust test solenoid valve, a second exhaust test solenoid valve, and a third exhaust test solenoid valve. Valve, solenoid valve for common exhaust air experiment, electromagnetic valve for emergency exhaust air experiment, air control valve for leakage experiment, air control valve for inflation experiment, air control valve for first air exhaust experiment, air control valve for second air exhaust experiment, third air exhaust Experimental air control valve, air control valve for common exhaust air experiment, air control valve for emergency exhaust air experiment, brake cylinder, hose connector and filter regulating valve,

Leakage test solenoid valve, inflation test solenoid valve, first exhaust test solenoid valve, second exhaust test solenoid valve, third exhaust test solenoid valve, common exhaust test solenoid valve and emergency exhaust test solenoid valve air circuit The inlets are connected together as the inlet of the unified air path of the solenoid valve, the stabilized air source is connected to the inlet of the unified air path of the solenoid valve, and the air source is connected to the inlet of the unified air path of the solenoid valve through the filter regulating valve.

The gas path outlet of the leakage test solenoid valve is connected to the gas path inlet of the leak test air control valve, and the gas path outlet of the leak test air control valve is connected to the train pipeline through a hose connector;

The gas path outlet of the solenoid valve for the inflation test is connected to the gas path inlet of the gas control valve for the inflation test, and the gas path outlet of the gas control valve for the inflation test is connected to the train pipeline through a hose connector;

The gas path outlet of the first air exhaust test electromagnetic valve is connected with the gas path inlet of the first air exhaust test air control valve, and the gas path outlet of the first air exhaust test air control valve is connected to the train pipeline through a hose connector;

The gas path outlet of the solenoid valve for the second exhaust test is connected to the gas path inlet of the air control valve for the second exhaust test, and the gas path outlet of the air control valve for the second exhaust test is connected to the train pipeline through a hose connector;

The gas path outlet of the solenoid valve for the third exhaust test is connected to the gas path inlet of the air control valve for the third exhaust test, and the gas path outlet of the air control valve for the third exhaust test is connected to the train pipeline through a hose connector;

The air outlet of the solenoid valve for common exhaust experiments is connected to the air inlet of the air control valve for common exhaust experiments. The air outlet of the air control valve for common exhaust experiments is connected to the train pipeline through a hose connector.

The air outlet of the solenoid valve for emergency exhaust test is connected to the air inlet of the air control valve for emergency exhaust test, and the air outlet of the air control valve for emergency exhaust test is connected to the train pipeline through a hose connector.

The brake cylinder is connected to the train pipeline,

The electrical control part of the system includes fuzzy controller, brake cylinder pressure sensor, train pipe pressure sensor, A/D conversion circuit, touch screen and power supply,

The brake cylinder pressure sensor detects the pressure of the brake cylinder, and the brake cylinder pressure signal output end of the brake cylinder pressure sensor is connected with the brake cylinder pressure signal input end of the A/D conversion circuit.

The train tube pressure sensor detects the pressure in the train tube, and the train tube pressure signal output end of the train tube pressure sensor is connected with the train tube pressure signal input end of the A/D conversion circuit,

The digital pressure signal output end of the A/D conversion circuit is connected with the pressure signal input end of the fuzzy controller,

The leak test instruction output terminal of the fuzzy controller is connected with the electrical input terminal of the leak test solenoid valve,

The output end of the fuzzy controller inflating experiment instruction is connected with the electrical input end of the inflating experiment solenoid valve,

The first air exhaust experiment instruction output end of the fuzzy controller is connected with the electric input end of the first exhaust air experiment solenoid valve,

The second exhaust experiment instruction output end of the fuzzy controller is connected with the electric input end of the second exhaust experiment electromagnetic valve,

The third air exhaust experiment instruction output end of the fuzzy controller is connected with the electric input end of the third exhaust air experiment electromagnetic valve,

The output end of the common exhaust air experiment instruction of the fuzzy controller is connected with the electrical input end of the common exhaust air experiment solenoid valve,

The emergency exhaust experiment command output end of the fuzzy controller is connected with the electric input end of the emergency exhaust experiment solenoid valve,

The power supply supplies power to the fuzzy controller,

The touch screen is connected with the fuzzy controller through the serial port.

The fuzzy controller is realized by PLC.

The utility model has the advantages that the micro-control bicycle air test system adopts advanced industrial-grade PLC control, the system has strong scalability and large upgrade space. At the same time, the fuzzy controller is used to adjust the wind test system, and the PLC is used to realize the fuzzy control, which ensures the accuracy and reliability of the train brake test and plays an important role in driving safety. Therefore, the performance of this fuzzy control system is reliable, the control effect is good, and it has a very good market prospect.

Description of drawings

Fig. 1 is the electrical control diagram of the micro-control bicycle air test system based on fuzzy control;

Figure 2 is a schematic diagram of the mechanical structure of the micro-control bicycle wind test system based on fuzzy control.

Detailed ways

Specific embodiment one: the present embodiment is described below in conjunction with Fig. 1 and Fig. 2, the micro-control bicycle air test system based on fuzzy control described in the present embodiment, it includes leakage test solenoid valve 7, inflation test solenoid valve 8, the first row Wind test solenoid valve 9, second exhaust test solenoid valve 10, third exhaust test solenoid valve 11, common exhaust test solenoid valve 12, emergency exhaust test solenoid valve 13, leakage test air control valve 16, inflatable test gas Control valve 17, air control valve 18 for the first exhaust experiment, air control valve 19 for the second exhaust experiment, air control valve 20 for the third exhaust experiment, air control valve 21 for common exhaust experiments, and air control valve for emergency exhaust experiments 22, brake cylinder 23, hose connector 24 and filter regulating valve 25,

Leakage test solenoid valve 7, inflation test solenoid valve 8, first exhaust test solenoid valve 9, second exhaust test solenoid valve 10, third exhaust test solenoid valve 11, common exhaust test solenoid valve 12 and emergency exhaust The gas path inlets of the experimental solenoid valve 13 are connected together as the unified gas path inlet of the solenoid valve.

The gas path outlet of the leakage test solenoid valve 7 is connected to the gas path inlet of the leakage test air control valve 16, and the gas path outlet of the leakage test air control valve 16 is connected to the train pipeline through a hose connector 24;

The gas path outlet of the inflation test solenoid valve 8 is connected to the gas path inlet of the inflation test air control valve 17, and the gas path outlet of the inflation test air control valve 17 is connected to the train pipeline through a hose connector 24;

The air path outlet of the first air exhaust test solenoid valve 9 is connected with the air path inlet of the first air exhaust test air control valve 18, and the air path outlet of the first air exhaust test air control valve 18 is connected to the train through a hose connector 24. on the pipeline;

The gas path outlet of the second exhaust test electromagnetic valve 10 is connected with the gas path inlet of the second exhaust test air control valve 19, and the gas path outlet of the second exhaust test air control valve 19 is connected to the train through a hose connector 24. on the pipeline;

The gas path outlet of the third exhaust test electromagnetic valve 11 is connected with the gas path inlet of the third exhaust test air control valve 20, and the gas path outlet of the third exhaust test air control valve 20 is connected to the train through a hose connector 24. on the pipeline;

The gas path outlet of the solenoid valve 12 used in the exhaust test is connected to the gas path inlet of the air control valve 21 used in the exhaust test, and the gas path outlet of the air control valve 21 used in the exhaust test is connected to the train pipeline through a hose connector 24.

The air outlet of the electromagnetic valve 13 for the emergency exhaust test is connected to the air inlet of the air control valve 22 for the emergency exhaust test, and the air outlet of the air control valve 22 for the emergency exhaust test is connected to the train pipeline through a hose connector 24.

Brake cylinder 23 is connected on the train pipeline,

The electrical control part of the system includes fuzzy controller 1, brake cylinder pressure sensor 2, train tube pressure sensor 3, A/D conversion circuit 4, touch screen 5 and power supply 6,

The brake cylinder pressure sensor 2 detects the pressure of the brake cylinder 23, the brake cylinder pressure signal output end of the brake cylinder pressure sensor 2 is connected with the brake cylinder pressure signal input end of the A/D conversion circuit 4,

The train tube pressure sensor 3 detects the pressure in the train tube, and the train tube pressure signal output end of the train tube pressure sensor 3 is connected with the train tube pressure signal input end of the A/D conversion circuit 4,

The digital pressure signal output end of the A/D conversion circuit 4 is connected with the pressure signal input end of the fuzzy controller 1,

The leakage experiment instruction output end of fuzzy controller 1 is connected with the electric input end of leakage experiment electromagnetic valve 7,

Fuzzy controller 1 inflation experiment command output end is connected with the electric input end of inflation experiment electromagnetic valve 8,

The first air exhaust experiment instruction output end of the fuzzy controller 1 is connected with the electric input end of the first air exhaust experiment electromagnetic valve 9,

The second exhaust experiment instruction output end of the fuzzy controller 1 is connected with the electric input end of the second exhaust experiment electromagnetic valve 10,

The third air exhaust experiment instruction output end of the fuzzy controller 1 is connected with the electric input end of the third exhaust air experiment electromagnetic valve 11,

The commonly used air exhaust experiment instruction output end of the fuzzy controller 1 is connected with the electric input end of the commonly used air exhaust experiment electromagnetic valve 12,

The emergency exhaust experiment command output end of the fuzzy controller 1 is connected with the electric input end of the emergency exhaust experiment electromagnetic valve 13,

The power supply 6 supplies power to the fuzzy controller 1,

The touch screen 5 is connected with the fuzzy controller 1 through a serial port.

The touch screen 5 inputs experimental instructions for the fuzzy controller 1, and the touch screen 5 also displays the experimental results.

The experimental instruction input by touch screen 5 refers to the type of experiment, including leak test, inflation test, first exhaust test, second exhaust test, third exhaust test, common exhaust test and emergency exhaust test;

The experimental result displayed on the touch screen 5 is the result of whether the performance of the train is normal after the above-mentioned experiment.

Embodiment 2: This embodiment further describes Embodiment 1. It also includes a wireless communication circuit 14 . The wireless transmission command output end of the fuzzy controller 1 is connected to the input end of the wireless communication circuit 14 .

Embodiment 3: This embodiment further describes Embodiment 1 or 2. It also includes a printer 15 , and the output end of the print command of the fuzzy controller 1 is connected to the input end of the printer 15 .

Specific Embodiment 4: This embodiment further describes Embodiment 1, 2 or 3, and the fuzzy controller 1 is realized by PLC.

PLC is powerful and operable, so the system uses PLC as the main controller. The pressure sensor collects the wind pressure of the train pipe and brake cylinder in real time, and after the A/D expansion module converts the pressure, it is sent to the PLC for data processing, and the solenoid valve is controlled by the PLC to realize the control. The automatic control of the air filling, pressure maintaining and decompression test process of the vehicle brake part, all parameter settings and system function operations are displayed and operated by the touch screen connected with the PLC.

By judging the performance of the wind test system described in this embodiment, the judging index is:

Leakage test: Open the leakage test solenoid valve 7, fill it with air to 500kPa, and the pressure of the brake pipe must not drop by 0kPa;

Inflation test: open the inflation test solenoid valve 8, the pressure of the brake pipe rises from 50kPa to 150kPa, and the time is 50-52 seconds, which is qualified;

The first air exhaust test: open the first air exhaust test solenoid valve 9, the brake pipe is decompressed to 100kPa±5kPa, and the time is 15-16.5 seconds, which is qualified;

The second air exhaust test: open the solenoid valve 10 for the second air exhaust test, decompress the brake pipe to 200kPa±5kPa, and the time is 8-9 seconds, which is qualified;

The third air exhaust test: open the solenoid valve 11 of the third air exhaust test, decompress the brake pipe to 300kPa±5kPa, and the time is 3.5-5 seconds, which is qualified;

Commonly used exhaust air test: open the commonly used exhaust air test solenoid valve 12, decompress the brake pipe to 200kPa±5kPa, and the time is 4-5 seconds, which is qualified;

Emergency air exhaust test: open the emergency air exhaust test solenoid valve 13, depressurize the brake pipe to 300kPa±5kPa, and the time is 1.5-2.5 seconds, which is qualified.

Claims (4)

1. based on the micro-control bicycle ventilation test system of fuzzy control; It is characterized in that; It comprises leaks experiment solenoid valve (7); Inflation experiment solenoid valve (8); First air draft experiment solenoid valve (9); Second air draft experiment solenoid valve (10); The 3rd air draft experiment solenoid valve (11); Air draft experiment solenoid valve (12) commonly used; Emergency exhaust experiment solenoid valve (13); Leak experiment Pneumatic valve (16); Inflation experiment Pneumatic valve (17); First air draft experiment Pneumatic valve (18); Second air draft experiment Pneumatic valve (19); The 3rd air draft experiment Pneumatic valve (20); Air draft experiment Pneumatic valve (21) commonly used; Emergency exhaust experiment Pneumatic valve (22); Checking cylinder (23); Hose coupling (24) and filtration variable valve (25)

The gas circuit inlet that leaks experiment solenoid valve (7), inflation experiment solenoid valve (8), first air draft experiment solenoid valve (9), second air draft experiment solenoid valve (10), the 3rd air draft experiment solenoid valve (11), air draft experiment solenoid valve (12) commonly used and emergency exhaust experiment solenoid valve (13) links together and unifies the gas circuit inlet as solenoid valve; The voltage stabilizing wind regime is unified the gas circuit inlet with this solenoid valve and is linked to each other; Wind regime is unified the gas circuit inlet through filtration variable valve and this solenoid valve and is linked to each other

The gas circuit outlet of leaking experiment solenoid valve (7) links to each other with the gas circuit inlet that leaks experiment Pneumatic valve (16), and the gas circuit outlet of leaking experiment Pneumatic valve (16) is connected on the train pipeline through hose coupling (24);

The gas circuit outlet of inflation experiment solenoid valve (8) links to each other with the gas circuit inlet of inflation experiment Pneumatic valve (17), and the gas circuit outlet of inflation experiment Pneumatic valve (17) is connected on the train pipeline through hose coupling (24);

The gas circuit outlet of first air draft experiment solenoid valve (9) links to each other with the gas circuit inlet of first air draft experiment Pneumatic valve (18), and the gas circuit outlet of first air draft experiment Pneumatic valve (18) is connected on the train pipeline through hose coupling (24);

The gas circuit outlet of second air draft experiment solenoid valve (10) links to each other with the gas circuit inlet of second air draft experiment Pneumatic valve (19), and the gas circuit outlet of second air draft experiment Pneumatic valve (19) is connected on the train pipeline through hose coupling (24);

The gas circuit outlet of the 3rd air draft experiment solenoid valve (11) links to each other with the gas circuit inlet of the 3rd air draft experiment Pneumatic valve (20), and the gas circuit outlet of the 3rd air draft experiment Pneumatic valve (20) is connected on the train pipeline through hose coupling (24);

The gas circuit outlet of air draft experiment solenoid valve commonly used (12) links to each other with the gas circuit inlet of using air draft experiment Pneumatic valve (21) always, and the gas circuit outlet of air draft experiment Pneumatic valve commonly used (21) is connected on the train pipeline through hose coupling (24),

The gas circuit outlet of emergency exhaust experiment solenoid valve (13) links to each other with the gas circuit inlet of emergency exhaust experiment Pneumatic valve (22), and the gas circuit outlet of emergency exhaust experiment Pneumatic valve (22) is connected on the train pipeline through hose coupling (24),

Checking cylinder (23) is connected on the train pipeline,

The electric control system of this system comprises fuzzy controller (1), brake-cylinder pressure sensor (2), train tube pressure sensor (3), A/D change-over circuit (4), touch-screen (5) and power supply (6),

Brake-cylinder pressure sensor (2) detects the pressure of checking cylinder (23), and the brake-cylinder pressure signal output part of brake-cylinder pressure sensor (2) links to each other with the brake-cylinder pressure signal input part of A/D change-over circuit (4),

Train tube pressure sensor (3) detects the pressure in the train pipe, and the train tube pressure signal output part of train tube pressure sensor (3) links to each other with the train tube pressure signal input part of A/D change-over circuit (4),

The digital pressure signal output terminal of A/D change-over circuit (4) links to each other with the pressure signal input end of fuzzy controller (1),

The leakage experiment instruction output end of fuzzy controller (1) links to each other with the electrical input that leaks experiment solenoid valve (7),

Fuzzy controller (1) inflation experiment instruction output end links to each other with the electrical input of inflation experiment solenoid valve (8),

First air draft experiment instruction output end of fuzzy controller (1) links to each other with the electrical input of first air draft experiment solenoid valve (9),

Second air draft experiment instruction output end of fuzzy controller (1) links to each other with the electrical input of second air draft experiment solenoid valve (10),

The 3rd air draft experiment instruction output end of fuzzy controller (1) links to each other with the electrical input of the 3rd air draft experiment solenoid valve (11),

The air draft experiment instruction output end commonly used of fuzzy controller (1) links to each other with the electrical input of air draft experiment solenoid valve commonly used (12),

The emergency exhaust experiment instruction output end of fuzzy controller (1) links to each other with the electrical input of emergency exhaust experiment solenoid valve (13),

Power supply (6) is fuzzy controller (1) power supply,

Touch-screen (5) is connected with fuzzy controller (1) through serial port.

2. according to the said micro-control bicycle ventilation test system based on fuzzy control of claim 1, it is characterized in that it also comprises wireless communication line (14), the wireless transmission instruction output end of fuzzy controller (1) links to each other with the input end of wireless communication line (14).

3. according to the said micro-control bicycle ventilation test system based on fuzzy control of claim 1, it is characterized in that it also comprises printer (15), the print command output terminal of fuzzy controller (1) links to each other with the input end of printer (15).

4. according to the said micro-control bicycle ventilation test system of claim 1, it is characterized in that fuzzy controller (1) adopts PLC to realize based on fuzzy control.

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