Alarm method and device for assisting in handling faults in advance in ground test run process

Abstract

The invention belongs to the technical field of engine test run, and relates to an alarm method and device for assisting in treating faults in advance in the ground test run process, an aero-engine for ground test run is connected with a ground inspection tester, and the alarm method comprises the steps that S1, a monitoring parameter range set by a user on the ground inspection tester is acquired; s2, a ground inspection tester collects test run parameters of the aero-engine, the test run parameters are compared with the monitoring parameter range, and when the test run parameters exceed the monitoring parameter range, a ground test run warning signal is sent to an aero-engine controller; and S3, the aero-engine controller sends a serious fault signal to the cabin according to the test run alarm signal, wherein the serious fault signal refers to a signal which is preset in the aero-engine controller and is used for starting voice and / or light alarm. According to the method and the device, early warning and early treatment in ground driving are realized, unnecessary use risks caused by untimely response of ground crew are avoided, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of engine test running, and in particular relates to an alarm method and device for assisting in early handling of faults during a ground test running process. Background Art

[0002] During ground tests of aircraft engines, engine parameters occasionally exceed limit values, and failure by users to handle the situation in a timely manner may result in engine damage.

[0003] In order to reduce false alarms during flight, aircraft engine alarms are designed to be issued only when engine failure is confirmed, that is, the criteria for alarms are relatively strict, which will inevitably lead to some minor abnormalities in the engine. For example, if the parameters do not exceed the limit value, but show a significant deterioration trend in the recent period, they cannot be discovered and handled in time, and can only be handled when an alarm appears. For ground driving, if the ground staff cannot handle it in time, it may lead to unnecessary risks of use. Summary of the invention

[0004] In order to solve the above problems, the present application provides an alarm method and device for assisting in early handling of faults during a ground test run, so as to achieve early warning.

[0005] In a first aspect, the present application provides an alarm method for assisting in early handling of faults during a ground test run, wherein an aircraft engine undergoing a ground test run is connected to a ground inspection instrument, and the alarm method comprises:

[0006] Step S1, obtaining the monitoring parameter range set by the user on the ground inspection instrument;

[0007] Step S2: The ground inspection instrument collects the test parameters of the aircraft engine and compares them with the monitoring parameter range. When the test parameters exceed the monitoring parameter range, a ground test alarm signal is sent to the aircraft engine controller;

[0008] Step S3: The aircraft engine controller sends a serious fault signal to the cockpit according to the test alarm signal, wherein the serious fault signal refers to a signal preset in the aircraft engine controller for activating voice and / or light alarms.

[0009] Preferably, step S2 further comprises:

[0010] When the ground inspection instrument fails to obtain the monitoring parameter range, a prohibited ground start signal is sent to the aircraft engine controller, which prohibits the engine from starting and feeds back the prohibited ground start signal to the ground inspection instrument.

[0011] Preferably, step S3 further comprises:

[0012] When the aircraft engine controller receives the ground test alarm signal and continues for a set time, it will send a serious fault signal to the cockpit. When the aircraft engine controller does not receive the ground test alarm signal and continues for a set time, it will no longer send a serious fault signal to the cockpit.

[0013] Preferably, step S1 further comprises:

[0014] After the engine is stopped and the ground inspection instrument is started, the monitoring parameter ranges are set to the default values.

[0015] A second aspect of the present application provides an alarm device for assisting in early handling of faults during a ground test run. The aircraft engine undergoing a ground test run is connected to a ground inspection instrument, and the alarm device comprises:

[0016] A monitoring parameter range acquisition module is used to obtain the monitoring parameter range set by the user on the ground inspection instrument;

[0017] A ground test run alarm signal sending module is used to collect the test run parameters of the aircraft engine by the ground inspection instrument and compare them with the monitoring parameter range. When the test run parameters exceed the monitoring parameter range, a ground test run alarm signal is sent to the aircraft engine controller;

[0018] The serious fault signal generating module is used for the aircraft engine controller to send a serious fault signal to the cockpit according to the test alarm signal. The serious fault signal refers to a signal preset in the aircraft engine controller for enabling voice and / or light alarms.

[0019] Preferably, the ground test vehicle warning signal sending module includes:

[0020] The prohibited ground start signal generating and sending unit is used to send a prohibited ground start signal to the aircraft engine controller when the ground inspection instrument fails to obtain the monitoring parameter range. The aircraft engine controller prohibits the engine from starting and feeds back the prohibited ground start signal to the ground inspection instrument.

[0021] Preferably, the serious fault signal generating module includes:

[0022] The delay control unit is used to send a serious fault signal to the cockpit when the aircraft engine controller receives the ground test alarm signal and continues for a set time. When the aircraft engine controller does not receive the ground test alarm signal and continues for a set time, it will no longer send a serious fault signal to the cockpit.

[0023] Preferably, the alarm device further comprises:

[0024] Reset module, used to set the monitoring parameter range to the default value after the engine is stopped and when the ground inspection instrument is started.

[0025] This application allows ground crew to reasonably set the engine alarm threshold based on their own reaction time and the recent performance of the engine, so as to achieve early warning and early disposal during ground driving, avoid unnecessary usage risks caused by untimely response of ground crew, and improve user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a flowchart of a preferred embodiment of an alarm method for assisting in early handling of faults during a ground test run of the present application. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the implementation of this application will be described in more detail in combination with the drawings in the implementation of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described implementation is a part of the implementation of this application, not all of the implementations. The implementation described below with reference to the drawings is exemplary and is intended to be used to explain this application, and cannot be understood as a limitation on this application. Based on the implementation in this application, all other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The implementation of this application is described in detail below in combination with the drawings.

[0028] The first aspect of the present application provides an alarm method for assisting in early handling of faults during a ground test run. The aircraft engine undergoing a ground test run is connected to a ground inspection instrument, such as Figure 1 As shown, the alarm method includes:

[0029] Step S1, obtaining the monitoring parameter range set by the user on the ground inspection instrument;

[0030] Step S2: The ground inspection instrument collects the test parameters of the aircraft engine and compares them with the monitoring parameter range. When the test parameters exceed the monitoring parameter range, a ground test alarm signal is sent to the aircraft engine controller;

[0031] Step S3: The aircraft engine controller sends a serious fault signal to the cockpit according to the test alarm signal, wherein the serious fault signal refers to a signal preset in the aircraft engine controller for activating voice and / or light alarms.

[0032] In step S1 of the present application, the user sets the monitoring parameter range, thereby realizing the function of setting the monitoring parameter alarm value according to the individual reaction time and the early performance of the engine. At the same time, the setting is performed on the ground inspection instrument, avoiding modification of the original alarm signal located in the aircraft engine controller, thereby ensuring the validity of the original alarm signal.

[0033] In step S2, the ground inspection instrument generates a ground test alarm signal, and the ground test alarm signal is used to prompt the aircraft engine controller to generate a serious fault signal in step S3. It should be noted here that, in general, the aircraft engine will set a fault alarm signal representing a more serious fault, that is, the serious fault signal, so as to control the cockpit to produce light or voice prompts. This application uses the serious fault signal as a switching signal, that is, converting the ground test alarm signal generated in the ground inspection instrument of this application into a serious fault signal preset in the aircraft engine controller to start the cockpit warning. This embodiment can avoid changes to the cockpit hardware and software.

[0034] In some optional implementations, step S2 further includes:

[0035] When the ground inspection instrument fails to obtain the monitoring parameter range, a prohibited ground start signal is sent to the aircraft engine controller, which prohibits the engine from starting and feeds back the prohibited ground start signal to the ground inspection instrument.

[0036] In this embodiment, after the aircraft engine controller receives the ground test alarm signal, it also needs to check whether the signal for prohibiting ground start is valid. If it is valid, it means that the ground inspection instrument is not ready, that is, the monitoring parameter range is not set. At this time, even if the aircraft engine controller receives the signal to start the engine, it should prohibit the engine from starting to prevent false alarms or missed alarms. The prohibited ground start signal can be further fed back to the ground inspection instrument, and a prompt can be issued on the display interface of the ground inspection instrument so that the user can set a new monitoring parameter range. On the contrary, if the prohibition of ground start signal is invalid, step S3 can be executed according to normal logic.

[0037] In some optional implementations, step S3 further includes:

[0038] When the aircraft engine controller receives the ground test alarm signal and continues for a set time, it will send a serious fault signal to the cockpit. When the aircraft engine controller does not receive the ground test alarm signal and continues for a set time, it will no longer send a serious fault signal to the cockpit.

[0039] It is understandable that in this embodiment, when the ground inspection instrument compares the test parameters with the monitoring parameter range, as long as the test parameters exceed the monitoring parameter range, the ground test alarm signal will continue to be generated, and the aircraft engine controller needs to set a time threshold, that is, when the ground test alarm signal is received and lasts for t0 seconds, the alarm will be issued again. Similarly, when the ground test alarm signal is no longer received and lasts for t0 seconds, the alarm will stop. t0 is generally set to 2 to 3 control cycles of the controller to avoid false alarms caused by interference spikes.

[0040] In some optional embodiments, step S1 further includes: after the engine is stopped and when the ground inspection instrument is started, setting the monitoring parameter range to a default value.

[0041] In this embodiment, in order to avoid the problem of "different ground staff misusing the alarm parameters set by others, resulting in false alarms or late alarms", it is necessary to reset the set parameters at an appropriate time and add the function of saving and importing alarm templates. Among them, the default value usually selects an extreme value, for example, a ground test alarm signal is generated only when it is higher than a maximum value or lower than a minimum value. The alarm template refers to a template with a monitoring parameter range to represent different ground staff. Before each start or when the software is opened, a dialog box pops up to prompt the user to select an alarm template.

[0042] In a second aspect, the present application provides an alarm device for assisting in early handling of faults during a ground test run corresponding to the above method. The aircraft engine undergoing the ground test run is connected to a ground inspection instrument, and the alarm device comprises:

[0043] A monitoring parameter range acquisition module is used to obtain the monitoring parameter range set by the user on the ground inspection instrument;

[0044] A ground test run alarm signal sending module is used to collect the test run parameters of the aircraft engine by the ground inspection instrument and compare them with the monitoring parameter range. When the test run parameters exceed the monitoring parameter range, a ground test run alarm signal is sent to the aircraft engine controller;

[0045] The serious fault signal generating module is used for the aircraft engine controller to send a serious fault signal to the cockpit according to the test alarm signal. The serious fault signal refers to a signal preset in the aircraft engine controller for enabling voice and / or light alarms.

[0046] In some optional implementations, the ground test vehicle warning signal sending module includes:

[0047] The prohibited ground start signal generating and sending unit is used to send a prohibited ground start signal to the aircraft engine controller when the ground inspection instrument fails to obtain the monitoring parameter range. The aircraft engine controller prohibits the engine from starting and feeds back the prohibited ground start signal to the ground inspection instrument.

[0048] In some optional implementations, the serious fault signal generating module includes:

[0049] The delay control unit is used to send a serious fault signal to the cockpit when the aircraft engine controller receives the ground test alarm signal and continues for a set time. When the aircraft engine controller does not receive the ground test alarm signal and continues for a set time, it will no longer send a serious fault signal to the cockpit.

[0050] In some optional implementations, the alarm device further includes:

[0051] Reset module, used to set the monitoring parameter range to the default value after the engine is stopped and when the ground inspection instrument is started.

[0052] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A warning method for assisting in early handling of faults during ground test, wherein: The aircraft engine undergoing ground test is connected to a ground inspection instrument, wherein the alarm method comprises: Step S1, obtaining the monitoring parameter range set by the user on the ground inspection instrument; Step S2: The ground inspection instrument collects the test parameters of the aircraft engine and compares them with the monitoring parameter range. When the test parameters exceed the monitoring parameter range, a ground test alarm signal is sent to the aircraft engine controller; Step S3: The aircraft engine controller sends a serious fault signal to the cockpit according to the test alarm signal, wherein the serious fault signal refers to a signal preset in the aircraft engine controller for activating voice and / or light alarms.

2. The alarm method for assisting in early handling of faults during ground test run as claimed in claim 1, characterized in that: Step S2 further comprises: When the ground inspection instrument fails to obtain the monitoring parameter range, a prohibited ground start signal is sent to the aircraft engine controller, which prohibits the engine from starting and feeds back the prohibited ground start signal to the ground inspection instrument.

3. The alarm method for assisting in early handling of faults during ground test run as claimed in claim 1, characterized in that: Step S3 further comprises: When the aircraft engine controller receives the ground test alarm signal and continues for a set time, it will send a serious fault signal to the cockpit. When the aircraft engine controller does not receive the ground test alarm signal and continues for a set time, it will no longer send a serious fault signal to the cockpit.

4. The alarm method for assisting in early handling of faults during ground test run as claimed in claim 1, characterized in that: Step S1 further comprises: After the engine is stopped and the ground inspection instrument is started, the monitoring parameter ranges are set to the default values.

5. An alarm device for assisting in early handling of faults during ground test, wherein the aircraft engine undergoing ground test is connected to a ground inspection instrument, characterized in that: The alarm device comprises: A monitoring parameter range acquisition module is used to obtain the monitoring parameter range set by the user on the ground inspection instrument; A ground test run alarm signal sending module is used to collect the test run parameters of the aircraft engine by the ground inspection instrument and compare them with the monitoring parameter range. When the test run parameters exceed the monitoring parameter range, a ground test run alarm signal is sent to the aircraft engine controller; The serious fault signal generating module is used for the aircraft engine controller to send a serious fault signal to the cockpit according to the test warning signal. The serious fault signal refers to a signal preset in the aircraft engine controller for enabling voice and / or light warnings.

6. The warning device for assisting in early handling of faults during ground test run as claimed in claim 5, characterized in that: The ground test warning signal sending module includes: The prohibited ground start signal generating and sending unit is used to send a prohibited ground start signal to the aircraft engine controller when the ground inspection instrument fails to obtain the monitoring parameter range. The aircraft engine controller prohibits the engine from starting and feeds back the prohibited ground start signal to the ground inspection instrument.

7. The warning device for assisting in early handling of faults during ground test run as claimed in claim 5, characterized in that: The serious fault signal generating module comprises: The delay control unit is used to send a serious fault signal to the cockpit when the aircraft engine controller receives the ground test alarm signal and continues for a set time. When the aircraft engine controller does not receive the ground test alarm signal and continues for a set time, it will no longer send a serious fault signal to the cockpit.

8. The warning device for assisting in early handling of faults during ground test run as claimed in claim 5, characterized in that: The alarm device also includes: Reset module, used to set the monitoring parameter range to the default value after the engine is stopped and when the ground inspection instrument is started.

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