CN109466534B - Train braking fault judgment method - Google Patents
Train braking fault judgment method Download PDFInfo
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- CN109466534B CN109466534B CN201811485113.XA CN201811485113A CN109466534B CN 109466534 B CN109466534 B CN 109466534B CN 201811485113 A CN201811485113 A CN 201811485113A CN 109466534 B CN109466534 B CN 109466534B
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- 238000000034 method Methods 0.000 title claims abstract description 16
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- 238000012545 processing Methods 0.000 claims abstract description 7
- 230000003137 locomotive effect Effects 0.000 claims abstract description 4
- 230000005856 abnormality Effects 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 3
- 238000013024 troubleshooting Methods 0.000 abstract description 7
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000013480 data collection Methods 0.000 abstract 2
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- 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
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a train brake fault judgment method, which comprises the steps of sending a brake release instruction to a brake system of each vehicle arranged in sequence from a first vehicle behind a locomotive and from the first vehicle to a last vehicle by using a train monitor, enabling the brake system to act according to the release instruction, collecting air pressure for providing driving force for the brake system to act by using a data collection device, analyzing and processing the air pressure collected by the data collection device by using the train monitor, and judging the type of a fault according to the change condition of the air pressure. The invention has the beneficial effects that: according to the invention, by monitoring the air pressure change on the key path of the train braking system, the pressure change data can be accurately acquired in real time, the type and the position of the fault can be rapidly analyzed and judged, the fault troubleshooting time can be shortened, and the fault troubleshooting efficiency can be improved.
Description
Technical Field
The invention relates to the technical field of train braking, in particular to a train braking fault judgment method.
Background
Train brakes can be classified into "service brakes" and "emergency brakes" depending on their application. The brake normally applied to regulate or control train speed, including the pull-in and stop, is referred to as a "service brake" and is characterized by a relatively mild application and an adjustable braking force. The braking applied in an emergency to bring the train to a stop as quickly as possible is called "emergency braking" (also called "emergency braking"), which is characterized by a relatively quick action and by the fact that the braking capacity of the train is fully utilized.
The distance that the train travels from the instant the brake is applied to the instant the train speed drops to zero is called the braking distance. The main technical index comprehensively reflects the performance and the effect of the train braking device. The higher the train weight, the higher the running speed, and the less likely it is to stop in a short time and distance.
And once the train is subjected to accidental emergency braking, the train needs to be stopped temporarily, a vehicle inspector gets off the train and monitors the train by ears and visual inspection of carriages one by one, and meanwhile, a driver performs a segmented braking relieving test in cooperation with the operation, positions the train which is subjected to the accidental emergency braking at first, and can continue to operate after taking measures to remove faults. The method is limited by train organization length and parking environment, the time for positioning the fault vehicle is generally long, and the train operation is seriously influenced by the fact that the occupied line influences the operation of other main trains, the large-area late of the train is often caused.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a train braking fault judgment method capable of quickly identifying fault types and fault vehicles.
The technical scheme adopted by the invention for solving the problems is as follows: a train brake fault judgment method includes the steps that a train monitor is used for sending brake release instructions to a brake system of each vehicle arranged in sequence from a first vehicle behind a locomotive to a last vehicle behind the first vehicle, the brake system acts according to the release instructions, a data acquisition device is used for acquiring air pressure change conditions for providing driving force for the brake system to act, the train monitor analyzes and processes air pressure acquired by a data acquisition device, and the type of a fault is judged according to the air pressure change conditions.
Furthermore, in order to better realize the invention, the data acquisition device comprises a class A pressure sensor for acquiring pressure change data of a train pipe, a brake cylinder upstream of a distribution valve, a brake cylinder downstream of a pressure limiting valve and an auxiliary reservoir of a vehicle brake system, and the type of the vehicle-level fault is judged by analyzing and processing the data acquired by the class A pressure sensor;
furthermore, in order to better realize the invention, the data acquisition device also comprises a B-class pressure sensor for acquiring pressure change data of the train pipe, the auxiliary reservoir, the upstream of the brake cylinder at the main valve and the downstream of the brake cylinder at the pressure limiting valve of the train, and the type of the train-level fault is judged by analyzing and processing the data acquired by the B-class pressure sensor.
Further, in order to better implement the invention, the vehicle-level faults include no braking caused by main valve faults, no braking caused by empty and heavy vehicle faults, poor relief caused by main valve faults, poor relief caused by empty and heavy vehicle faults, natural braking, natural relief and brake cylinder leakage.
Further, in order to better realize the invention, the train-level faults comprise a door closing fault, a folding angle cock closing, train pipe leakage and accidental emergency braking.
Further, in order to better realize the invention, the folding angle cock is judged to be closed from the first train to the last train according to the pressure abnormality of the train pipe of the vehicle braking system and/or the train pipe of the train vehicle; and judging the failure of closing the train from the first train to the last train according to the pressure abnormality of the train pipe of the train braking system and/or the train pipe of the train.
Further, in order to better realize the invention, the first vehicle which is suddenly braked is judged according to the time sequence of the sudden emergency braking.
Further, in order to better realize the invention, the vehicles with the leaked train pipes are positioned according to the sequence of the train pipes of the vehicle braking system and/or the leaked train pipes of the train vehicles.
The beneficial effect that this scheme obtained is: by monitoring the air pressure change on the key path of the train braking system, the pressure change data can be accurately collected in real time, the type and the position of the fault can be quickly analyzed and judged, the fault troubleshooting time can be shortened, and the fault troubleshooting efficiency can be improved.
Drawings
FIG. 1 is a logic diagram for fault determination.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
Example 1:
in this embodiment, a train brake failure determination method is implemented by sending a brake release instruction to a brake system of each vehicle arranged in sequence from a first vehicle behind a locomotive and from the first vehicle to a last vehicle by using a train monitor, where the brake systems of each corresponding vehicle are also numbered identically. The braking system acts according to the release instruction, the data acquisition device is used for acquiring the air pressure change condition which provides driving force for the braking system to act, the train monitoring instrument analyzes and processes the air pressure acquired by the data acquisition device, and the type of the fault is judged according to the air pressure change condition. The train monitor and the data acquisition device are communicated through the communication module, the communication module is used for communicating and transmitting data, the common knowledge and the conventional means of the technical personnel in the field are provided, the specific structure and the working principle of the communication module are not taken as the improvement point of the scheme, and the specific structure and the working principle of the communication module are not limited and repeated.
By monitoring the air pressure change on the key path of the train braking system, the pressure change data can be accurately collected in real time, and the type and the position of the fault can be rapidly analyzed and judged by utilizing the train monitor to the pressure change data, so that the time for troubleshooting can be shortened, and the efficiency for troubleshooting can be improved.
Example 2:
on the basis of the above embodiment, in this embodiment, the data acquisition device includes a class a pressure sensor for acquiring pressure change data of a train pipe of the vehicle brake system, a brake cylinder upstream of the distribution valve, a brake cylinder downstream of the pressure limiting valve, and an auxiliary reservoir, and the type of the vehicle-level fault is determined by analyzing and processing data acquired by the class a pressure sensor.
The data acquisition device also comprises a B-type pressure sensor for acquiring pressure change data of the train pipe, the auxiliary reservoir, the upstream of the brake cylinder at the main valve and the downstream of the brake cylinder at the pressure limiting valve, and the type of the train-level fault is judged by analyzing and processing the data acquired by the B-type pressure sensor.
The vehicle-level faults comprise no braking caused by main valve faults, no braking caused by empty and heavy vehicle faults, poor relieving caused by main valve faults, poor relieving caused by empty and heavy vehicle faults, natural braking, natural relieving and brake cylinder leakage.
The train-level faults comprise a door closing fault, a folding angle cock closing, train pipe leakage and accidental emergency braking.
As shown in table 1 below, the types of various types of failures are determined by collecting the positions of abnormal changes in pressure using the data collecting apparatus.
TABLE 1 Fault type judgement Table
The analyzing of the pressure change conditions at various locations in the brake system to determine the type of the fault is common knowledge and conventional means of those skilled in the art, and the specific determination standard and the determination principle thereof are not taken as an improvement point of the present solution, and are not limited and described herein.
As shown in fig. 1, the folding angle cock is judged to be closed from the first train to the last train according to the pressure abnormality of the train pipe of the vehicle brake system and/or the train pipe of the train vehicle. And judging the failure of closing the train from the first train to the last train according to the pressure abnormality of the train pipe of the train braking system and/or the train pipe of the train.
And judging the first vehicle which is braked emergently according to the time sequence of the emergency braking.
And positioning the vehicles with the leaked train pipes according to the sequence of the train pipes of the vehicle braking system and/or the leaked train pipes of the train vehicles.
According to the scheme, the vehicles with faults can be quickly found out according to the sequencing sequence of the vehicles, the time sequence and the ranking sequence of the faults, the vehicle-by-vehicle inspection is avoided, and the efficiency of troubleshooting is improved. And the type of the fault is analyzed rapidly and in real time according to the pressure change conditions collected by the data collecting devices at different positions, so that the fault recognition efficiency can be improved, and the position where the fault occurs can be accurately positioned.
The foregoing is only a preferred embodiment of the present invention, and the present invention is not limited thereto in any way, and any simple modification, equivalent replacement and improvement made to the above embodiment within the spirit and principle of the present invention still fall within the protection scope of the present invention.
Claims (4)
1. A train braking fault judgment method is characterized by comprising the following steps: the method comprises the steps that a train monitor is used for sending a brake relieving instruction to a brake system of each vehicle arranged in sequence from a first vehicle behind a locomotive to a last vehicle, the brake system acts according to the relieving instruction, a data acquisition device is used for acquiring the air pressure change condition for providing driving force for the brake system to act, the train monitor analyzes and processes the air pressure acquired by the data acquisition device, and the type of a fault is judged according to the air pressure change condition; the data acquisition device comprises A-type pressure sensors for acquiring pressure change data of a train pipe of a vehicle braking system, the upstream of a brake cylinder at a distribution valve, the downstream of the brake cylinder at a pressure limiting valve and an auxiliary reservoir, and the type of vehicle-level faults is judged by analyzing and processing the data acquired by the A-type pressure sensors, wherein the vehicle-level faults comprise no braking caused by main valve faults, no braking caused by empty and heavy vehicle faults, poor relief caused by main valve faults, poor relief caused by empty and heavy vehicle faults, natural braking, natural relief and brake cylinder leakage;
the data acquisition device also comprises a B-class pressure sensor for acquiring pressure change data of a train pipe, an auxiliary air cylinder, the upstream of a brake cylinder at a main valve and the downstream of the brake cylinder at a pressure limiting valve of the train, and the type of the train-level fault is judged by analyzing and processing the data acquired by the B-class pressure sensor, wherein the train-level fault comprises a door closing fault, a folding angle cock closing, train pipe leakage and accidental emergency braking.
2. The train brake failure judgment method according to claim 1, characterized in that: judging that the angle cock is closed from the first train to the last train according to the pressure abnormality of the train pipe of the vehicle braking system and/or the train pipe of the train; and judging the failure of closing the train from the first train to the last train according to the pressure abnormality of the train pipe of the train braking system and/or the train pipe of the train.
3. The train brake failure judgment method according to claim 1, characterized in that: and judging the first vehicle which is braked emergently according to the time sequence of the emergency braking.
4. The train brake failure judgment method according to claim 1, characterized in that: and positioning the vehicles with the leaked train pipes according to the sequence of the train pipes of the vehicle braking system and/or the leaked train pipes of the train vehicles.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811485113.XA CN109466534B (en) | 2018-12-06 | 2018-12-06 | Train braking fault judgment method |
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| CN201811485113.XA CN109466534B (en) | 2018-12-06 | 2018-12-06 | Train braking fault judgment method |
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| CN109466534B true CN109466534B (en) | 2020-08-04 |
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| CN110217217A (en) * | 2019-05-22 | 2019-09-10 | 中国铁路总公司 | Railway freight-car air damping fault distinguishing method |
| CN111002970B (en) * | 2019-12-17 | 2021-03-23 | 眉山中车制动科技股份有限公司 | Train brake fault detection method |
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| CN111976672B (en) * | 2020-08-19 | 2022-06-14 | 中车株洲电力机车有限公司 | Dynamic vehicle control method and system under fault of railway vehicle brake mitigation |
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| CN112277919B (en) * | 2020-11-03 | 2022-04-05 | 中车青岛四方机车车辆股份有限公司 | Control method and device for preventing brake from being unreeased and whole train |
| CN113200028B (en) * | 2021-05-28 | 2022-05-13 | 中车株洲电力机车有限公司 | Holding brake control method in emergency traction mode, brake system and vehicle |
| CN115384475B (en) * | 2022-09-15 | 2023-11-07 | 中车株洲电力机车有限公司 | Fault management method, device and equipment for locomotive distribution valve and storage medium |
| CN116296483B (en) * | 2023-05-24 | 2023-08-04 | 眉山中车制动科技股份有限公司 | Brake cylinder state monitoring method and system for simulating ten-thousand-ton train test bed |
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| CN104071143A (en) * | 2014-07-10 | 2014-10-01 | 南京浦镇海泰制动设备有限公司 | Brake control unit for railway vehicle |
| CN104228867A (en) * | 2014-10-17 | 2014-12-24 | 南车株洲电力机车有限公司 | Method and system for separate relief of pressure of locomotive braking cylinder |
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2018
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1147061A (en) * | 1965-04-29 | 1969-04-02 | York Trailer Company Ltd | Improvements in and relating to vehicle brake actuators |
| US4052855A (en) * | 1974-03-14 | 1977-10-11 | Caterpillar Tractor Co. | Brake master cylinder construction |
| CN1094360A (en) * | 1994-03-21 | 1994-11-02 | 顾冬梅 | The rolling stock inertial defect automatic tester of no first bus |
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