CN216901434U

CN216901434U - BCU testing arrangement

Info

Publication number: CN216901434U
Application number: CN202220717304.XU
Authority: CN
Inventors: 齐鑫; 吴波涛; 孙晖; 秦怀文
Original assignee: Beijing Edbao Electronic Technology Service Co ltd
Current assignee: Beijing Edbao Electronic Technology Service Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-07-05
Anticipated expiration: 2032-03-29

Abstract

The utility model discloses a BCU (body control unit) testing device, and relates to the technical field of train braking. The method is used for solving the problems that the BCU fault is difficult to locate and cannot be subjected to function test. The method comprises the following steps: the device comprises an industrial personal computer, a controller, an analog quantity generation module, an analog quantity detection module, a switching value module and an air circuit module; the controller is respectively connected with the industrial personal computer, the analog quantity generation module, the analog quantity detection module and the switching value module; the gas circuit module comprises a gas circuit pipeline, a pressure regulating valve, an electromagnetic valve and a pressure sensor which are arranged on the gas circuit pipeline; the analog quantity generation module is used for providing an analog signal for the BCU; the analog quantity detection module is used for detecting an analog signal output by the BCU; the switching value module is used for BCU monitoring and control; the air circuit module is used for providing air pressure for the BCU; the industrial personal computer realizes the test of the BCU through information interaction among the analog quantity detection module, the switching value module and the BCU.

Description

BCU testing arrangement

Technical Field

The utility model relates to the technical field of train braking, in particular to a BCU testing device.

Background

The BCU is a brake control component of a train (high-speed rail, subway and the like), and due to the complex function of the BCU, when the BCU breaks down, maintenance personnel cannot utilize effective equipment to check the failure cause, so that the failure cause cannot be found; after the BCU is repaired, all functions of the BCU cannot be tested, and whether the repaired BCU meets the use condition is judged. Therefore, maintenance personnel can not maintain the BCU, and the BCU needs to be sent to a manufacturer for maintenance when the BCU breaks down, so that the maintenance time period is long, and the maintenance of the train is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a BCU testing device which is used for solving the problems.

In order to achieve the above purpose, the utility model provides the following technical scheme: a BCU testing apparatus, may comprise: the device comprises an industrial personal computer, a controller, an analog quantity generation module, an analog quantity detection module, a switching value module and an air circuit module;

the industrial personal computer is connected with the controller, and the controller is respectively connected with the analog quantity generation module, the analog quantity detection module and the switching value module;

the industrial personal computer, the analog quantity generation module, the analog quantity detection module and the switching value module are respectively connected with the BCU;

the air path module comprises an air path pipeline, and a pressure regulating valve, an electromagnetic valve and a pressure sensor which are arranged on the air path pipeline, the air path pipeline is communicated with the BCU, and the pressure regulating valve, the electromagnetic valve and the pressure sensor are respectively connected with the controller;

the analog quantity generation module is used for providing an analog signal for the BCU; the analog quantity detection module is used for detecting an analog signal output by the BCU; the switching value module is used for monitoring and controlling the BCU; the air circuit module is used for providing air pressure for the BCU; the industrial personal computer realizes the testing of the BCU through the information interaction among the analog quantity detection module, the switching value module and the BCU.

The utility model has the following beneficial effects: the BCU testing device provided by the utility model can simulate the real environment required by the operation of the BCU, and further test each function of the BCU, so that the fault of the BCU is found, or whether each function of the BCU meets the operation condition is verified. When BCU broke down, thereby maintenance personal accessible this BCU testing arrangement tested BCU and found the trouble reason to maintain to the trouble. After the BCU is repaired, various performance tests can be performed on the BCU through the BCU testing device to see whether the BCU meets the actual operation standard or not.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a BCU testing apparatus provided in the present invention.

Fig. 2 is a schematic structural diagram of the gas circuit module provided by the present invention.

Reference numerals:

1. an industrial personal computer; 2. a controller; 3. a speed signal generator; 4. an electric energy signal generator; 5. an analog quantity detection module; 6. a switching value module; 7. a gas circuit module; 8. an adjustable power supply; 9. a TRDP network card; 10. aerial plug; 11. a display; 12. a keyboard and a mouse; 13. a printer; 14. BCU; 71. a gas path pipeline; 72. an electromagnetic valve; 73. a pressure regulating valve; 74. a pressure sensor; 75. a filter; 76. an air reservoir.

Detailed Description

In order to facilitate clear description of technical solutions of the embodiments of the present invention, in the embodiments of the present invention, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

It is to be understood that the terms "exemplary" or "such as" are used herein to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

The noun explains: BCU: a train brake control component. MVB: a utility vehicle bus. TCMS: train control and management system.

The utility model provides a BCU (binary coded decimal) testing device, which is described by referring to FIG. 1 and comprises an industrial personal computer 1, a controller 2, an analog quantity generation module, an analog quantity detection module 5, a switching value module 6 and an air circuit module 7.

The industrial personal computer 1 can be connected with the BCU through the MVB and the RS 485. The industrial personal computer 1 can be specifically connected with the controller 2 through an RJ45 interface, and the controller 2 is respectively connected with the analog quantity generation module, the analog quantity detection module 5 and the switching value module 6. The analog quantity generation module, the analog quantity detection module 5 and the switching value module 6 are respectively connected with the BCU.

The industrial personal computer 1 can send a control instruction to the BCU through the MVB and the RS485, and can also read information fed back to the TCMS by the BCU through the MVB.

The analog generating module may include a speed signal generator 3 and a power signal generator 4.

The speed signal generator 3 may generate a frequency signal for simulating the speed signal required by the BCU during actual operation. The industrial personal computer 1 controls the speed signal generator 3 to generate a speed signal through the controller 2, so that the speed signal can change according to a certain curve, and the actual speed curve of the train can be better simulated.

The power signal generator 4 is used for generating a voltage signal and a current signal so as to simulate a sensor signal collected when the BCU is actually operated. The BCU is generated to collect sensor signals of temperature, pressure and the like during actual operation, the sensor signals are voltage or current signals when being received by the BCU, and the electric energy signal generator 4 can directly simulate the voltage or current signals and can replace the sensors and create a real environment to generate the signals. The power signal generator 4 may be a circuit structure composed of an isolation power supply, a current type signal transmitter, a voltage type signal transmitter, and a PLC. Of course also an analog signal generator as in the prior art.

The analog quantity detection module 5 is used for detecting whether the analog quantity generated by the BCU is normal. The analog quantity detecting module 5 may be a circuit structure formed of a voltage signal transmitter, a current signal transmitter, and a PLC. Of course, the analog detecting module 5 may also be an analog input module in the prior art.

The air path module 7 includes an air path pipe 71, a solenoid valve 72, a pressure regulating valve 73, and a pressure sensor 74. Air passage conduit 71 is in communication with BCU 14. The solenoid valve 72, the pressure regulating valve 73, and the pressure sensor 74 are connected to the controller 2, respectively. The air circuit module 7 is used for providing pressure air for the BCUs, and air circuit interfaces are integrated on some BCUs, so that the pressure of an air circuit can be directly detected.

The switching value module 6 is used for simulating a relay or a contactor for monitoring and controlling the BCU in actual operation. When the BCU is in actual operation, the states of the corresponding components are monitored and controlled by monitoring and controlling the relays and/or the contactors. Specifically, the switching value module 6 may be a circuit module formed by a plurality of electromagnetic switching devices such as relays and/or contactors, and may be formed by a plurality of other types of switching devices.

Wherein, the controller 2 can be selected as PLC. Of course, the controller can also be selected to be a single chip microcomputer or other programmable controllers. The electric energy signal generator 4, the analog quantity detection module 5 and the switching value module 6 can be connected with the BCU through the aviation plug 10.

The BCU testing device provided by the utility model can simulate the real environment required by the operation of the BCU, and further test each function of the BCU, so that the fault of the BCU is found, or whether each function of the BCU meets the operation condition is verified. This BCU testing arrangement can realize the functional test of the BCU of multiple train and the location of trouble, has not only solved the BCU functional test problem after the maintenance, can also help the maintenance personal fast, the accuracy in the maintenance process simultaneously with the fault location to passageway or functional module level, the maintenance efficiency who improves greatly.

The specific explanation is as follows:

the industrial personal computer 1 can send a control instruction to the BCU through the MVB and the RS485, and the BCU can control the corresponding switch device of the switching value module 6 to be opened or closed after receiving the control instruction. Firstly, the industrial personal computer 1 acquires the state of a corresponding switch device in the switching value module 6 as first monitoring data through the controller 2, and judges whether a corresponding functional module of the BCU can complete a corresponding control instruction according to the first monitoring data. Secondly, the industrial personal computer 1 reads second monitoring data (the BCU can monitor the state of the corresponding switch device to form second monitoring data and feed the second monitoring data back to the TCMS) of the state of the corresponding switch device of the switching value module 6 fed back by the BCU through the MVB, and the industrial personal computer 1 judges whether the second monitoring data is consistent with the first monitoring data. The industrial personal computer 1 judges whether the corresponding functional module or the related channel of the BCU has a fault or not through the two points.

The industrial personal computer 1 also controls the speed signal generator 3 to generate a corresponding speed signal through the controller 2, and the speed signal generator 3 outputs the speed signal to the BCU; the industrial personal computer 1 can also control the electric energy signal generator 4 to generate a corresponding sensor signal and output the sensor signal to the BCU; the industrial personal computer 1 can also control the gas circuit module 7 to generate corresponding pressure and output the pressure to the BCU; meanwhile, the industrial personal computer 1 can also simulate the TCMS to send corresponding control instructions to the BCU through the MVB and the RS 485; after receiving the corresponding control instruction and the corresponding signal, the BCU can generate a corresponding analog quantity signal, the industrial personal computer 1 controls the analog quantity detection module 5 to detect the analog quantity signal through the controller 2, and whether the corresponding function module or the related channel of the BCU fails is judged according to the condition whether the analog quantity signal generated by the BCU meets the condition. After determining that a fault occurs, the corresponding functional module or the device in the relevant path can be repaired.

Wherein, the principle that industrial computer 1 control gas circuit module 7 produces corresponding pressure does: referring to fig. 2, the gas line 71 is connected to a gas source, and the industrial personal computer 1 opens the solenoid valve 72 through the controller 2 to communicate the gas source with the BCU, and controls the pressure regulating valve 73 to adjust the gas line pressure to a corresponding value.

The industrial personal computer 1 can control the electric energy signal generator 4 to generate a sensor signal (the value of the sensor signal is a preset value) through the controller 2 and output the sensor signal to the BCU. The BCU receives the sensor signal and then detects the sensor signal to obtain a monitoring value, the monitoring value is fed back to the industrial personal computer 1 through the MVB, and the industrial personal computer 1 compares the monitoring value with a preset value to judge whether the corresponding functional module or the related channel of the BCU breaks down.

When the BCU has an air channel interface and detects a corresponding functional module, referring to fig. 2, the industrial personal computer 1 opens the electromagnetic valve 72 through the controller 2 to communicate the air source with the BCU, and controls the pressure regulating valve 73 to regulate the air channel pressure to a corresponding pressure. The industrial personal computer 1 reads the value of the pressure sensor 74 as a first value through the controller 2. BCU detects the pressure in the gas circuit, obtains the monitoring value and feeds back the detected value to industrial computer 1 through MVB, and industrial computer 1 judges whether corresponding functional module or relevant access of BCU break down through comparing this monitoring value with the first value.

The air path module 7 may further include a filter 75, and the filter 75 may filter the air in the air path pipe 71 to prevent impurities possibly existing in the air from damaging the BCU.

The air circuit module 7 may further include an air cylinder 76, and the air cylinder 76 may serve as an air source, and since the BCU is communicated with the air cylinder on the train during actual operation, the actual operation environment of the BCU may be better simulated by using the air cylinder 76 as the air source.

The BCU test apparatus comprises an adjustable power supply 8, the adjustable power supply 8 being connected to at least the controller 2 and the BCU. The adjustable power supply 8 is at least used to power the BCU. When power supply detection is performed on a BCU, a voltage varying within a certain range is applied to the BCU to detect whether the voltage output of the BCU is normal. At this time, the industrial personal computer 1 can adjust the adjustable power supply 8 through the controller 2 to provide a variable voltage for the BCU.

The BCU testing device can further comprise a TRDP network card 9, a first interface of the TRDP network card 9 is connected with the industrial personal computer, and a second interface of the TRDP network card 9 is connected with the BCU. Some BCUs have TRDP interfaces, and the BCU testing device can have the communication capacity with the BCUs by adding the TRDP network card 9. And sending a control instruction to the BCU and receiving information fed back by the BCU through the TRDP network card.

Industrial computer 1 can be connected with display 11, and display 11 can be for the display screen with 1 formula as an organic whole of industrial computer, also can be for external display, and display 11 is used for showing the test result at least. Of course, the operation interface of the test system, such as the setting interface, the test interface, etc., can also be displayed.

Of course, the industrial personal computer 1 may have an input device, and the input device may be a key arranged on the industrial personal computer 1. The industrial personal computer 1 may also use an external input device, such as a keyboard, a mouse 12, etc.

BCU testing arrangement can also include printer 13, and printer 13 is connected with industrial computer 1, can print out the test result through printer 13 to in the maintenance personal look over the test result.

While the utility model has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed invention, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

While the utility model has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the utility model. Accordingly, the specification and figures are merely exemplary of the utility model as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the utility model. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A BCU testing device, comprising:

the device comprises an industrial personal computer, a controller, an analog quantity generation module, an analog quantity detection module, a switching value module and an air circuit module;

2. The BCU testing apparatus of claim 1, wherein said analog generating module comprises a speed signal generator and a power signal generator; the speed signal generator and the electric energy signal generator are respectively connected with the controller and the BCU.

3. The BCU testing device of claim 1, wherein said gas circuit module further comprises a filter disposed on said gas circuit conduit.

4. The BCU testing device of claim 3, wherein said gas circuit module further comprises an air reservoir, said gas circuit conduit being in communication with said air reservoir.

5. The BCU testing apparatus according to claim 1, wherein said switching value module comprises a plurality of relays and/or contactors connected to both said controller and said BCU, respectively.

6. The BCU testing apparatus of claim 1, wherein said BCU testing apparatus comprises an adjustable power supply coupled to both said controller and said BCU, said adjustable power supply being configured to at least power said BCU.

7. The BCU testing device according to claim 1, wherein said industrial personal computer is connected with said BCU through MVB and RS 485.

8. The BCU testing device according to claim 7, further comprising a TRDP network card, wherein a first interface of the TRDP network card is connected with the industrial personal computer, and a second interface of the TRDP network card is connected with the BCU.