CN114233550B - Engine start fault diagnosis method, device, equipment and storage medium - Google Patents
Engine start fault diagnosis method, device, equipment and storage medium Download PDFInfo
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- CN114233550B CN114233550B CN202111574067.2A CN202111574067A CN114233550B CN 114233550 B CN114233550 B CN 114233550B CN 202111574067 A CN202111574067 A CN 202111574067A CN 114233550 B CN114233550 B CN 114233550B
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000003745 diagnosis Methods 0.000 title claims abstract description 35
- 239000007858 starting material Substances 0.000 claims abstract description 137
- 238000004590 computer program Methods 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 6
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000802 evaporation-induced self-assembly Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/10—Safety devices
- F02N11/108—Safety devices for diagnosis of the starter or its components
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The application provides an engine starting fault diagnosis method, device, equipment and storage medium, which are used for judging whether a driving gear of a starter has a push-out fault or not according to a first actual moving distance and a first preset distance by acquiring the first actual moving distance of the driving gear of the starter in a first preset time; if the fact that the starter does not have the push-out fault is determined, obtaining a second actual moving distance of the driving gear of the starter in a second preset time; according to the second actual moving distance and the second preset distance, whether the driving gear of the starter is in engagement failure is judged, and by the arrangement, whether the engine is in starting failure can be accurately judged, the starter and the engine are prevented from being damaged, and the service lives of the engine and the starter are prolonged.
Description
Technical Field
The present application relates to the field of starter technologies, and in particular, to a method, an apparatus, a device, and a storage medium for diagnosing an engine start failure.
Background
The starter can convert the electric energy of the storage battery into mechanical energy for driving the flywheel of the engine to rotate so as to realize the starting of the engine.
In the related art, a starter generally includes a dc motor, a transmission mechanism, a driving gear, an electromagnetic switch, and the like, and the dc motor will introduce a current from a battery, so that the driving gear of the starter generates a mechanical rotation, and the driving gear is meshed with a flywheel gear ring of an engine through the transmission mechanism to drive the engine to start, and then the transmission mechanism can also drive the driving gear to move, so that the driving gear is separated from the flywheel gear ring.
However, there is no effective method in the related art to determine whether or not the engine has a start failure.
Disclosure of Invention
The application provides an engine starting fault diagnosis method, device, equipment and storage medium, which are used for solving the technical problem that no effective mode is available in the related art for judging whether an engine has a starting fault or not.
According to a first aspect of an embodiment of the present application, the present application provides an engine start failure diagnosis method, the method including:
starting a starter in response to a starting instruction sent by a user;
obtaining a first actual moving distance of a driving gear of the starter within a first preset time, wherein the first preset time is the time for the driving gear of the starter to contact with a flywheel gear ring of the engine when the starter is free from faults;
judging whether a push-out fault occurs to a driving gear of the starter according to the first actual moving distance and a first preset distance;
if the fact that the driving gear of the starter does not have the push-out fault is determined, obtaining a second actual moving distance of the driving gear of the starter within a second preset time, wherein the second preset time is the time for the driving gear of the starter to be meshed with a flywheel gear ring of the engine when the starter does not have the fault;
and judging whether the driving gear of the starter has engagement failure or not according to the second actual moving distance and the second preset distance.
The engine start failure diagnosis method as described above, wherein determining whether a push-out failure occurs in the drive gear of the starter according to the first actual movement distance and a first preset distance, includes:
and if the first actual moving distance is smaller than the first preset distance, judging that the driving gear of the starter has push-out fault.
The engine start failure diagnosis method as described above, wherein determining whether or not the engagement failure occurs in the drive gear of the starter according to the second actual movement distance and the second preset distance, includes:
and if the second actual moving distance is smaller than the second preset distance, judging that the driving gear of the starter has engagement failure.
The engine start failure diagnosis method as described above, wherein starting the starter in response to a start instruction sent by a user, includes:
acquiring a first actual rotating speed of the engine;
and determining the starting instruction according to the first actual rotating speed.
The engine start failure diagnosis method as described above, wherein after judging whether or not the engagement failure occurs in the drive gear of the starter according to the second actual movement distance and the second preset distance, further includes:
if the fact that the driving gear of the starter is not in engagement failure is determined, obtaining a second actual rotating speed of the engine;
and judging whether the engine has a starting fault or not according to the second actual rotating speed and the rotating speed threshold value.
The engine start failure diagnosis method as described above, wherein an alarm is initiated if at least one of a drive gear push-out failure, a drive gear engagement failure, or an engine start failure is determined.
According to a second aspect of the embodiments of the present application, there is provided an engine start failure diagnosis apparatus including:
the distance acquisition module is used for acquiring the moving distance of the driving gear of the starter, and the moving distance comprises a first actual moving distance and a second actual moving distance;
the fault judging module is used for judging whether the driving gear of the starter is in push-out fault or not according to the first actual moving distance and the first preset distance, and judging whether the driving gear of the starter is in meshing fault or not according to the second actual moving distance and the second preset distance.
The engine starting fault diagnosis device further comprises a rotating speed acquisition module and an alarm module;
the rotating speed acquisition module is used for acquiring a first actual rotating speed and a second actual rotating speed;
the alarm module is used for initiating an alarm according to whether the engine start fails or not.
According to a third aspect of the embodiment of the present application, the embodiment of the present application provides an engine start failure diagnosis apparatus including: a memory, a processor, and a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the engine start failure determination method as described above.
According to a fourth aspect of embodiments of the present application, the computer-readable storage medium has stored therein computer-executable instructions, which when executed by a processor, are for implementing the engine start failure determination method as described above.
According to the engine starting fault diagnosis method, the engine starting fault diagnosis device, the engine starting fault diagnosis equipment and the storage medium, whether the driving gear of the starter has a push-out fault or not is judged according to the first actual moving distance and the first preset distance by obtaining the first actual moving distance of the driving gear of the starter in the first preset time; if the fact that the starter does not have the push-out fault is determined, obtaining a second actual moving distance of the driving gear of the starter in a second preset time; according to the second actual moving distance and the second preset distance, whether the driving gear of the starter is in engagement failure is judged, and by the arrangement, whether the engine is in starting failure can be accurately judged, the starter and the engine are prevented from being damaged, and the service lives of the engine and the starter are prolonged.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
FIG. 1 is a flow chart of an engine start fault diagnosis method provided by an embodiment of the present application;
FIG. 2 is a flow chart of another engine start fault diagnostic method provided by an embodiment of the present application;
FIG. 3 is a schematic diagram of an engine start failure diagnosis apparatus according to an embodiment of the present application;
fig. 4 is a schematic diagram of an engine start failure diagnosis apparatus provided by an embodiment of the present application.
Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.
Detailed Description
In the related art, an engine is usually started through a starter, for example, when the starter works, a driving gear is driven to mechanically rotate, and the driving gear is meshed with a flywheel gear ring of the engine through a transmission mechanism to drive the engine to start, however, if the starter or the engine fails, the starter or the engine is damaged, and further, the service life of the starter or the engine is reduced.
Based on the technical problems described above, in the method, the device, the equipment and the storage medium for diagnosing the engine starting fault, by acquiring a first actual moving distance of a driving gear of a starter within a first preset time, judging whether the driving gear of the starter has a push-out fault or not according to the first actual moving distance and the first preset distance; if the fact that the starter does not have the push-out fault is determined, obtaining a second actual moving distance of the driving gear of the starter in a second preset time; according to the second actual moving distance and the second preset distance, whether the driving gear of the starter is in engagement failure is judged, and by the arrangement, whether the engine is in starting failure can be accurately judged, the starter and the engine are prevented from being damaged, and the service lives of the engine and the starter are prolonged.
The following describes the technical scheme of the present application and how the technical scheme of the present application solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of an engine start fault diagnosis method according to an embodiment of the present application, as shown in fig. 1, the diagnosis method includes the following steps:
step S101: and starting the starter in response to a starting instruction sent by a user.
In this embodiment, the starter needs to be started according to a start instruction, where the acquisition of the start instruction may be performed in the following manner:
for example, the first actual rotational speed of the engine is obtained, and the start command is determined according to the first actual rotational speed, for example, the first actual rotational speed of the engine may be obtained by a speed sensor disposed near a flywheel ring gear of the engine, if the first actual rotational speed is zero, a start command may be formed at this time, and if the first actual rotational speed is greater than zero, no start command is formed at this time.
The step can prevent the starter from being started under the condition that the actual rotation speed of the engine is not known, further, the flywheel gear ring of the engine and the driving gear of the starter can be prevented from milling teeth, the safety performance is improved, and meanwhile, the service lives of the engine and the starter are prolonged.
Step S102: and obtaining a first actual moving distance of the driving gear of the starter within a first preset time, wherein the first preset time is the time for the driving gear of the starter to contact with the flywheel gear ring of the engine when the starter is free from faults.
When the starter is started normally without faults, the relay is electrified firstly, the coil of the electromagnetic switch is electrified, the direct current motor starts to work, then the direct current motor drives the driving gear to rotate through the transmission mechanism and drives the driving gear to move towards the flywheel gear ring of the engine, and when the driving gear of the starter moves a first preset distance towards the flywheel gear ring, the driving gear of the starter is in contact with the flywheel gear ring of the engine.
In this embodiment, the driving gear is generally mounted on the clutch through a flange, where in the initial state, a first distance L1 is provided between an end surface of the driving gear facing away from the flange and an end surface of the flange facing toward the driving gear, and after the driving gear runs for a first preset time, a second distance L2 is provided between an end surface of the driving gear facing away from the flange and an end surface of the flange facing toward the driving gear, where a difference between the second distance L2 and the first distance L1 is a first actual movement distance.
In the present embodiment, the first actual moving distance is obtained by a displacement sensor provided near the drive gear.
Step S103: judging whether the driving gear of the starter has push-out faults or not according to the first actual moving distance and the first preset distance, wherein the first preset distance is the moving distance of the driving gear of the starter when the starter is in contact with the flywheel gear ring of the engine and the starter is in no-fault state.
If the first actual moving distance is smaller than the first preset distance, it may be proved that the driving gear of the starter is not in contact with the flywheel gear ring of the engine within the first preset time, and further it is judged that the driving gear of the starter has a push-out fault, at this time, the push-out fault of the driving gear may be reported, and the relay may be cut off to prevent the starter from continuing to operate, so that the starter may be protected.
After the relay is cut off, components of the starter, such as an electromagnetic switch, a shifting fork or the relay, can be checked, and components of the starter, which are in fault, can be effectively cleared in time, so that the safety of the starter in the running process is improved.
Step S104: if it is determined that the drive gear of the starter does not have the push-out fault, obtaining a second actual moving distance of the drive gear of the starter within a second preset time, wherein the second preset time is the time for the drive gear of the starter to be meshed with the flywheel gear ring of the engine when the starter does not have the fault.
If the driving gear of the starter does not have a push-out fault, the starter continues to work, the driving gear is driven to move towards the flywheel gear ring, the driving gear is fully meshed with the flywheel gear ring, and at the moment, the difference between the distance between the end face of the driving gear, which is away from the flange, and the end face of the flange, which is towards the driving gear, and the first distance L1 is a second preset distance.
At this time, a second actual moving distance of the driving gear of the starter within a second preset time is required to be obtained, that is, after the driving gear runs for the second preset time, a third distance L3 is provided between an end surface of the driving gear, which is away from the flange, and an end surface of the flange, which faces the driving gear, and a difference value between the third distance L3 and the first distance L1 is the second actual moving distance.
Step S105: and judging whether the driving gear of the starter has engagement failure or not according to the second actual moving distance and the second preset distance.
If the second actual moving distance is smaller than the second preset distance, it can be proved that the driving gear of the starter is completely meshed with the flywheel gear ring of the engine within the second preset time, and further, the situation that the driving gear of the starter is meshed with the flywheel gear ring of the engine is judged, at the moment, the driving gear is meshed with the flywheel gear ring of the engine, the relay is cut off, the starter is prevented from continuously working, and therefore the starter and the starter can be protected, and the phenomenon that gear milling is caused due to the fact that the meshing area of the driving gear and the flywheel gear ring of the engine is small is prevented.
After the relay is cut off, components of the starter, such as an electromagnetic switch, a shifting fork or the relay, can be checked, and the components with faults of the starter can be effectively cleared in time, so that the safety of the starter in the running process is improved.
According to the embodiment of the application, by acquiring the first actual moving distance of the driving gear of the starter in the first preset time, judging whether the driving gear of the starter has push-out faults or not according to the first actual moving distance and the first preset distance; if the fact that the starter does not have the push-out fault is determined, obtaining a second actual moving distance of the driving gear of the starter in a second preset time; according to the second actual moving distance and the second preset distance, whether the driving gear of the starter is in engagement failure is judged, and by the arrangement, whether the engine is in starting failure can be accurately judged, the starter and the engine are prevented from being damaged, and the service lives of the engine and the starter are prolonged.
In some embodiments, in order to determine whether there is another failure after the driving gear of the starter is meshed with the flywheel ring gear of the engine, another method for diagnosing a start failure of the engine is provided according to an embodiment of the present application, as shown in fig. 2, and includes:
step S201: and starting the starter in response to a starting instruction sent by a user.
Step S202: and obtaining a first actual moving distance of the driving gear of the starter within a first preset time, wherein the first preset time is the time for the driving gear of the starter to contact with the flywheel gear ring of the engine when the starter is free from faults.
Step S203: judging whether the driving gear of the starter has push-out faults or not according to the first actual moving distance and the first preset distance, wherein the first preset distance is the moving distance of the driving gear of the starter when the starter is in contact with the flywheel gear ring of the engine and the starter is in no-fault state.
Step S204: if it is determined that the drive gear of the starter does not have the push-out fault, obtaining a second actual moving distance of the drive gear of the starter within a second preset time, wherein the second preset time is the time for the drive gear of the starter to be meshed with the flywheel gear ring of the engine when the starter does not have the fault.
Step S205: and judging whether the driving gear of the starter has engagement failure or not according to the second actual moving distance and the second preset distance.
The implementation of steps S201 to S205 is similar to that of steps S101 to S105, and the embodiments of the present application are not described herein.
Step S206: and if the starter is determined not to have engagement failure, acquiring a second actual rotating speed of the engine.
The second actual rotation speed may be obtained by a speed sensor disposed near a flywheel ring gear of the engine, and in addition, the speed sensor may be in a working state all the time, so that the actual rotation speed of the engine may be obtained in real time, or may also operate in a certain period of time, so as to detect the first actual rotation speed and the second actual rotation speed.
Step S207: and judging whether the engine has a starting fault or not according to the second actual rotating speed and the rotating speed threshold value.
If the second actual rotation speed is larger than or equal to the rotation speed threshold, the engine can be judged to be started normally, and if the second actual rotation speed is smaller than the rotation speed threshold, the engine can be judged to have a starting fault.
In some embodiments, an alarm is initiated if at least one of a drive gear push out fault, a drive gear mesh fault, or an engine start fault is determined.
By way of example, no matter what kind of fault exists in the starting process of the engine, an alarm can be sent out as long as the fault exists, and by means of the arrangement, a worker can be timely informed of closing the starter or the engine, so that the safety of the starter or the engine is ensured, and further, the service life of the starter or the engine is prolonged.
Fig. 3 is a schematic diagram of an engine start failure diagnosis apparatus according to an embodiment of the present application, as shown in fig. 3, the apparatus includes: a distance acquisition module 301 and a failure determination module 302.
The distance acquisition module 301 is configured to acquire a movement distance of a driving gear of the starter, where the movement distance includes a first actual movement distance and a second actual movement distance.
The first actual movement distance and the second actual movement distance may be used as the actual movement distance of the drive gear of the determination starter.
In this embodiment, the distance acquisition module 301 may include a displacement sensor.
The failure determination module 302 is configured to determine whether a push-out failure occurs in the driving gear of the starter according to the first actual movement distance and the first preset distance, and determine whether a meshing failure occurs in the driving gear of the starter according to the second actual movement distance and the second preset distance.
In some embodiments, the engine start fault diagnostic apparatus further includes a rotational speed acquisition module 303 and an alarm module 304; the rotation speed obtaining module 303 is configured to obtain a first actual rotation speed and a second actual rotation speed, and the rotation speed obtaining module 303 may include a speed sensor.
The alarm module 304 is configured to initiate an alarm based on whether an engine start has failed. Wherein, alarm module 304 can include at least one of buzzer alarm and audible and visual alarm, for example, alarm module can be buzzer alarm, for example again, alarm module includes audible and visual alarm, for example again, alarm module can include buzzer alarm and audible and visual alarm simultaneously, so set up, can improve alarm efficiency, in time remind the staff to overhaul.
The engine starting fault diagnosis device provided in this embodiment may execute the technical scheme of any one of the method embodiments, and its implementation principle and technical effects are similar, and will not be repeated here.
Fig. 4 is a schematic diagram of an engine start failure diagnosis apparatus provided by an embodiment of the present application, the components shown herein, their connections and relationships, and their functions are merely examples, and are not limiting to the implementations of the application described and/or claimed herein.
As shown in fig. 4, the apparatus includes: memory 401, processor 402 and computer program.
Wherein a computer program is stored in the memory 401 and configured to be executed by the processor 402 to implement the engine start failure determination method provided by any of the embodiments of the present application.
The memory 401 and the processor 402 are connected through a bus, where the memory 401 is used as a non-transitory computer readable storage medium, and may be used to store a non-transitory software program, a non-transitory computer executable program, and a module, such as a module in an engine failure diagnosis apparatus in an embodiment of the present application, for example, the distance acquisition module 301, the failure determination module 302, the rotation speed acquisition module 303, and the alarm module 304.
The processor 402 executes non-transitory software programs, instructions, and modules stored in the memory 401 to perform various functional applications and data processing of the engine start failure diagnosis apparatus, i.e., to implement the engine start failure determination method in the above-described method embodiment.
The embodiment of the application also provides a computer readable storage medium, wherein a computer program is stored in the computer readable storage medium, and the computer program is used for realizing the engine starting fault judging method provided by any one of the embodiments when being executed by a processor.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, e.g., the division of modules is merely a logical function division, and there may be additional divisions of actual implementation, e.g., multiple modules may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or modules, which may be in electrical, mechanical, or other forms.
The modules illustrated as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to implement the solution of this embodiment.
In addition, each functional module in the embodiments of the present application may be integrated in one processing unit, or each module may exist alone physically, or two or more modules may be integrated in one unit. The units formed by the modules can be realized in a form of hardware or a form of hardware and software functional units.
The integrated modules, which are implemented in the form of software functional modules, may be stored in a computer readable storage medium. The software functional modules described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or processor to perform some of the steps of the methods of the various embodiments of the application.
It should be understood that the above processor may be a central processing unit (Central Processing Unit, abbreviated as CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, abbreviated as DSP), application specific integrated circuits (Application Specific Integrated Circuit, abbreviated as ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method according to the application may be embodied directly in hardware, in a processor, or in a combination of hardware and software modules in a processor.
The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile memory NVM, such as at least one magnetic disk memory, and may also be a U-disk, a removable hard disk, a read-only memory, a magnetic disk or optical disk, etc.
The bus may be an industry standard architecture (Industry Standard Architecture, ISA) bus, an external device interconnect (Peripheral Component Interconnect, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, the buses in the drawings of the present application are not limited to only one bus or to one type of bus.
The storage medium may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an application specific integrated circuit (Application Specific Integrated Circuits, ASIC for short). It is also possible that the processor and the storage medium reside as discrete components in an electronic device or a master device.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (7)
1. An engine start failure diagnosis method, characterized by comprising:
starting a starter in response to a starting instruction sent by a user;
obtaining a first actual moving distance of a driving gear of the starter within a first preset time, wherein the first preset time is the time for the driving gear of the starter to contact with a flywheel gear ring of the engine when the starter is free from faults;
judging whether a push-out fault occurs to a driving gear of the starter according to the first actual moving distance and a first preset distance;
if the fact that the driving gear of the starter does not have the push-out fault is determined, obtaining a second actual moving distance of the driving gear of the starter within a second preset time, wherein the second preset time is the time for the driving gear of the starter to be meshed with a flywheel gear ring of the engine when the starter does not have the fault;
judging whether the driving gear of the starter has engagement failure or not according to the second actual moving distance and the second preset distance;
judging whether the driving gear of the starter has a push-out fault according to the first actual moving distance and the first preset distance, including:
if the first actual moving distance is smaller than the first preset distance, judging that the driving gear of the starter has push-out fault;
judging whether the driving gear of the starter has engagement failure according to the second actual moving distance and the second preset distance, including:
if the second actual moving distance is smaller than the second preset distance, judging that the driving gear of the starter has engagement failure;
after judging whether the engagement failure occurs in the driving gear of the starter according to the second actual moving distance and the second preset distance, the method further comprises:
if the fact that the driving gear of the starter is not in engagement failure is determined, obtaining a second actual rotating speed of the engine;
and judging whether the engine has a starting fault or not according to the second actual rotating speed and the rotating speed threshold value.
2. The engine start failure diagnosis method according to claim 1, wherein starting the starter in response to a start instruction sent by a user, comprises:
acquiring a first actual rotating speed of the engine;
and determining the starting instruction according to the first actual rotating speed.
3. The engine start failure diagnosis method according to claim 1, characterized by further comprising:
and if at least one of the drive gear push-out fault, the drive gear meshing fault or the engine starting fault exists, an alarm is initiated.
4. An engine start failure diagnosis apparatus for performing the engine start failure diagnosis method according to any one of claims 1 to 3, characterized in that the apparatus comprises:
the distance acquisition module is used for acquiring the moving distance of the driving gear of the starter, and the moving distance comprises a first actual moving distance and a second actual moving distance;
the fault judging module is used for judging whether the driving gear of the starter is in push-out fault or not according to the first actual moving distance and the first preset distance, and judging whether the driving gear of the starter is in meshing fault or not according to the second actual moving distance and the second preset distance.
5. The engine start failure diagnosis apparatus according to claim 4, further comprising a rotation speed acquisition module and an alarm module;
the rotating speed acquisition module is used for acquiring a first actual rotating speed and a second actual rotating speed;
the alarm module is used for initiating an alarm according to whether the engine start fails or not.
6. An engine start failure diagnosis apparatus characterized by comprising: a memory, a processor, and a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the engine start failure diagnosis method according to any one of claims 1 to 3.
7. A computer-readable storage medium, wherein computer-executable instructions are stored in the computer-readable storage medium, which when executed by a processor, are for implementing the engine start failure diagnosis method according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111574067.2A CN114233550B (en) | 2021-12-21 | 2021-12-21 | Engine start fault diagnosis method, device, equipment and storage medium |
Applications Claiming Priority (1)
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| CN114233550A (en) | 2022-03-25 |
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