阅读说明：本技术 一种制动功能测试方法、系统、存储介质及设备 (Braking function testing method, system, storage medium and equipment ) 是由 王振显 车聪聪 韩庆蕾 刘洋 李琳 李兴国 于 2021-07-15 设计创作，主要内容包括：本公开提供了一种制动功能测试方法、系统、存储介质及设备,接收制动测试指令,发送保持制动切除信号给目标车辆的制动系统；接收到制动系统反馈的保持制动缓解信号后,将司控器推到相应制动位；根据收到制动系统的实际制动缸压力以及制动缸压力计算值,判断压力差值是否在合理,如果是,则该制动级位下的制动功能通过；否则,判定测试失败；记录各制动位下的实际制动缸压力值以及测试结果。本公开能够实现减少检修人员的操作流程,节省测试时间,仅通过推动司控器完成各个制动档位下的制动功能测试并判断出结果,减少对测试电路等硬件设备的依赖。(The present disclosure provides a brake function testing method, system, storage medium and device, receiving a brake test command, sending a keep brake cut signal to a brake system of a target vehicle; after receiving a brake release maintaining signal fed back by a brake system, pushing a driver controller to a corresponding brake position; judging whether the pressure difference is reasonable according to the received actual brake cylinder pressure of the brake system and a brake cylinder pressure calculation value, and if so, passing the brake function of the brake level; otherwise, judging that the test fails; and recording the actual brake cylinder pressure value and the test result at each brake position. The method and the device can reduce the operation flow of maintainers, save the test time, complete the brake function test under each brake gear and judge the result only by pushing the driver controller, and reduce the dependence on hardware equipment such as a test circuit.)

1. A braking function testing method is characterized by comprising the following steps: the method comprises the following steps:

receiving a brake test instruction, and sending a brake cut keeping signal to a brake system of a target vehicle;

after receiving a brake release maintaining signal fed back by a brake system, pushing a driver controller to a corresponding brake position;

judging whether the pressure difference is reasonable according to the received actual brake cylinder pressure of the brake system and a brake cylinder pressure calculation value, and if so, passing the brake function of the brake level; otherwise, judging that the test fails;

and recording the actual brake cylinder pressure value and the test result at each brake position.

2. A method of testing a braking function according to claim 1, characterized by: and a plurality of target vehicles are provided, and when the test is needed, the brake maintaining and cutting instruction is sent to the brake systems of all vehicles to be tested.

3. A method of testing a braking function according to claim 2, characterized by: and if the brake maintaining release signals fed back by the brake systems of all the target vehicles are not received, not starting the brake test, and carrying out the brake test after checking the communication network of the corresponding target vehicle.

4. A method of testing a braking function according to claim 1, characterized by: when the driver controller is pushed to a corresponding brake position, the brake level is required to be kept for a set time, and then the brake test at the gear is started;

the gear of the brake position is matched with the brake level.

5. A method of testing a braking function according to claim 1, characterized by: the specific process for judging whether the pressure difference value is in a reasonable range comprises the following steps: and judging whether the difference value between the pressure value of the brake cylinder and the calculated value of the pressure of the brake cylinder is within a preset range or not under the current braking position, if so, judging that the pressure difference value is reasonable, and the braking function test of the current braking position is passed.

6. A method of testing a braking function according to claim 1, characterized by: and after all the brake position tests are finished, resetting the brake cut keeping instruction, and controlling the target vehicle to apply the brake keeping instruction.

7. A method of testing a braking function according to any one of claims 1 to 6, characterized by: and in the test process, when a test stopping instruction is received, stopping the test and keeping the brake system in a brake state.

8. A braking function test system is characterized in that: the method comprises the following steps:

the network system is used for receiving the brake test instruction and sending a brake maintaining and removing signal to the brake system; receiving a brake maintaining release signal fed back by a target brake system;

the brake system receives the brake cut keeping signal and feeds back a brake release keeping signal;

the driver controller is used for adjusting the brake position to be measured;

the processing system is used for judging whether the pressure difference value is in a reasonable range or not according to the received actual brake cylinder pressure of the brake system and the calculated value of the brake cylinder pressure, and if the pressure difference value is in the reasonable range, the brake function under the brake level position passes; otherwise, judging that the test fails; and recording the actual brake cylinder pressure value and the test result at each brake position.

9. A computer-readable storage medium characterized by: for storing computer instructions which, when executed by a processor, perform the steps of a method of brake function testing according to any one of claims 1-7.

10. An electronic device, characterized by: comprising a memory and a processor and computer instructions stored on the memory and executed on the processor, which when executed by the processor, perform the steps of a method of brake function testing as claimed in any one of claims 1 to 7.

Technical Field

The disclosure belongs to the technical field of brake system testing, and particularly relates to a brake function testing method, a brake function testing system, a brake function testing storage medium and brake function testing equipment.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

For rail vehicles, it is very important for the test of the brake system. However, the conventional test of the rail transit vehicle brake system generally comprises two types of manual test and automatic test, wherein the manual test is more dependent on the experience of testers, and the technical level requirement of the testers is higher; the automatic test needs test hardware suitable for a certain test item, and is generally only suitable for a certain vehicle, and the test items between different vehicles may be different and cannot be used universally, and if the test hardware is used forcibly, the risk that the vehicle equipment is damaged by the test is existed.

In addition, whether the test is manual test or automatic test, the final test result is often required to be manually judged and recorded, and the problems of low efficiency and high error rate exist.

Disclosure of Invention

In order to solve the above problems, the present disclosure provides a braking function testing method, system, storage medium, and device, which can improve the efficiency of braking function testing through information communication and cooperation between a driver controller, a vehicle network system, and a braking system.

According to some embodiments, the following technical scheme is adopted in the disclosure:

a method of testing a braking function, comprising the steps of:

receiving a brake test instruction, and sending a brake cut keeping signal to a brake system of a target vehicle;

after receiving a brake release maintaining signal fed back by a brake system, pushing a driver controller to a corresponding brake position;

judging whether the pressure difference is reasonable according to the received actual brake cylinder pressure of the brake system and a brake cylinder pressure calculation value, and if so, passing the brake function of the brake level; otherwise, judging that the test fails;

and recording the actual brake cylinder pressure value and the test result at each brake position.

According to the scheme, the operation flow of maintainers can be reduced, the test time is saved, the brake function test under each brake gear is completed only by pushing the driver controller, the result is judged, and the dependence on hardware equipment such as a test circuit is reduced.

In an alternative embodiment, the target vehicles are multiple, and when the test is needed, the brake maintaining and cutting instruction is sent to the brake systems of all vehicles to be tested.

As an alternative embodiment, if the braking-maintaining release signals fed back by the braking systems of all the target vehicles are not received, the braking test is not started, and the braking test is performed after the communication networks of the corresponding target vehicles are checked.

As an alternative implementation, when the driver is pushed to the corresponding braking position, the braking level is required to be maintained for a set time, and then the braking test at the current gear is started.

In an alternative embodiment, the gear position of the brake position is matched to the brake position.

As an alternative embodiment, the specific process of determining whether the pressure difference value is within the reasonable range is to determine whether the difference value between the brake cylinder pressure value and the brake cylinder pressure calculated value is within a preset range at the current brake position, and if the difference value is within the preset range, the pressure difference value is reasonable, and the brake function test of the current brake position passes.

In an alternative embodiment, after all the brake level tests are completed, the holding brake cut command is reset, and the target vehicle is controlled to apply the holding brake.

As an alternative embodiment, when a test stopping command is received in the test process, the test is stopped, and the brake system is kept in the brake state. To ensure the safety of the test vehicle.

A braking function testing system, comprising:

the network system is used for receiving the brake test instruction and sending a brake maintaining and removing signal to the brake system; receiving a brake maintaining release signal fed back by a target brake system;

the brake system receives the brake cut keeping signal and feeds back a brake release keeping signal;

the driver controller is used for adjusting the brake position to be measured;

the processing system is used for judging whether the pressure difference value is in a reasonable range or not according to the received actual brake cylinder pressure of the brake system and the calculated value of the brake cylinder pressure, and if the pressure difference value is in the reasonable range, the brake function under the brake level position passes; otherwise, judging that the test fails; and recording the actual brake cylinder pressure value and the test result at each brake position.

A computer readable storage medium for storing computer instructions, which when executed by a processor, perform the steps of a method for testing braking function as described above.

An electronic device comprising a memory and a processor and computer instructions stored on the memory and executed on the processor, the computer instructions, when executed by the processor, performing the steps of a method for testing a braking function as described above.

Compared with the prior art, the beneficial effect of this disclosure is:

this is disclosed through the information interaction and the cooperation between maintainer, driver controller, network system, the braking system, can realize reducing maintainer's operation flow, saves test time, only accomplishes the braking function test and judges the result under each braking gear through promoting the driver controller, reduces the reliance to hardware equipment such as test circuit.

According to the braking test method and device, the driver controller pushes the corresponding braking gear, the braking test under the gear is started after the time for maintaining the braking gear is set, the reset measurement time is set, the stability of the braking state can be guaranteed, and the accuracy of the test result is guaranteed.

According to the method, whether the braking function is normal or not can be determined by judging whether the difference value between the pressure value of the brake cylinder and the calculated value of the pressure of the brake cylinder is in a reasonable range or not, the testing process is simple, and the calculated amount is small.

In order to make the aforementioned objects, features and advantages of the present disclosure more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.

FIG. 1 is a schematic diagram of a testing process according to the first embodiment.

The specific implementation mode is as follows:

the present disclosure is further described with reference to the following drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure.

In the present disclosure, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present disclosure can be determined on a case-by-case basis by persons skilled in the relevant art or technicians, and are not to be construed as limitations of the present disclosure.

The first embodiment is as follows:

a method for testing a braking function, as shown in fig. 1, comprising the steps of:

step (1): receiving a brake test instruction, and sending a brake cut keeping signal to a brake system of a target vehicle by a network system;

step (2): and after the network system receives the brake release maintaining signal fed back by the brake system, starting testing.

And (3): pushing the driver controller to a corresponding brake position according to the brake level to be tested;

in this embodiment, the braking test in this gear is started after a certain time (the time is T1, this time is set to 2s in this embodiment, and in other embodiments, the value of this time can be adjusted) is maintained at the braking level to be tested. By the design, the brake state can be guaranteed to be stable, a good test environment is kept, and the accuracy of a test result is guaranteed.

At the same time, a certain reset measurement time T2 needs to be met.

If the conditions cannot be met, the test is stopped at the gear, and the next test is not carried out. The corresponding brake level for each gear is shown in table 1:

of course, table 1 is only an example, and the corresponding levels, the number of gears, and the like of different driver manufacturers can be adjusted. Meanwhile, the values of T1 and T2 can be adjusted according to different vehicles.

And (4): judging whether the pressure difference is reasonable according to the received actual brake cylinder pressure of the brake system and a brake cylinder pressure calculation value, and if so, passing the brake function of the brake level; otherwise, judging that the test fails;

in the present embodiment, during the time T2 (5 s in the present embodiment), the "under test" is displayed in the corresponding brake position test result column, the pressure value change is displayed in the brake cylinder pressure value column in real time, and the time measurement is completed. And the network system judges the result according to the brake cylinder pressure value fed back by the brake system of each vehicle.

I, if the difference A between the pressure value of the brake cylinder of the vehicle and the calculated value of the brake cylinder pressure is within +/-20 kpa, the brake test of the vehicle at the brake gear is passed, the test result column of the display is successful, and the pressure value column of the brake cylinder displays the pressure value at the moment and is not changed.

II, if the difference A between the pressure value of the brake cylinder of the vehicle and the calculated value of the brake cylinder pressure is received to be beyond +/-20 kpa, the brake test of the vehicle at the brake gear fails, the test result column of the display fails, and the pressure value column of the brake cylinder displays the pressure value at the moment and does not change.

Of course, in other embodiments, T2, a may be adjusted according to different brake system manufacturers, and the range of ± 20kpa may also be adjusted.

And (5): and recording the actual brake cylinder pressure value at the current braking position and the test result.

And (6): and (5) after the previous gear test is finished, operating the driver controller by a maintainer according to the requirement, and repeating the test processes of the steps (3) to (5). Until the final emergency brake function test is finished.

And (7): and after the network system detects that the braking function test of all gears is finished, resetting the brake-keeping cut-off signal. And after detecting that all the vehicles keep braking application, the display screen prompts that the test is finished. All test results are stored in a recording file of a display, so that subsequent checking is facilitated.

In the whole test process, if the stop designation is received, the current brake test is stopped.

Example two:

a braking function testing system, comprising:

the network system is used for receiving the brake test instruction and sending a brake maintaining and removing signal to the brake system; receiving a brake maintaining release signal fed back by a target brake system;

the brake system receives the brake cut keeping signal and feeds back a brake release keeping signal;

the driver controller is used for adjusting the brake position to be measured;

the processing system is used for judging whether the pressure difference value is in a reasonable range or not according to the received actual brake cylinder pressure of the brake system and the calculated value of the brake cylinder pressure, and if the pressure difference value is in the reasonable range, the brake function under the brake level position passes; otherwise, judging that the test fails; and recording the actual brake cylinder pressure value and the test result at each brake position.

The device also comprises a display used for displaying the test result and the test braking position.

Example three:

a computer readable storage medium storing computer instructions which, when executed by a processor, perform steps in a braking function testing method according to a first embodiment.

Example four:

an electronic device comprising a memory and a processor and computer instructions stored on the memory and executed on the processor, wherein the computer instructions, when executed by the processor, perform the steps of a braking function testing method according to one embodiment.

The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.