CN117540061B - Automobile fuel heater fault analysis method, system, terminal equipment and medium - Google Patents
Automobile fuel heater fault analysis method, system, terminal equipment and medium Download PDFInfo
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- CN117540061B CN117540061B CN202410009114.6A CN202410009114A CN117540061B CN 117540061 B CN117540061 B CN 117540061B CN 202410009114 A CN202410009114 A CN 202410009114A CN 117540061 B CN117540061 B CN 117540061B
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- 239000000446 fuel Substances 0.000 title claims abstract description 27
- 238000004458 analytical method Methods 0.000 title claims abstract description 24
- 238000011835 investigation Methods 0.000 claims abstract description 74
- 238000005452 bending Methods 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 147
- 238000000034 method Methods 0.000 claims description 20
- 230000002159 abnormal effect Effects 0.000 claims description 16
- 238000004590 computer program Methods 0.000 claims description 13
- 238000013024 troubleshooting Methods 0.000 claims description 12
- 238000011144 upstream manufacturing Methods 0.000 claims description 12
- 238000007689 inspection Methods 0.000 claims description 9
- 238000013500 data storage Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 2
- 201000004569 Blindness Diseases 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 18
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
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- 238000003825 pressing Methods 0.000 description 1
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Abstract
The invention provides a fault analysis method, a system, terminal equipment and a medium for an automobile fuel heater, and relates to the technical field of automobiles, wherein the fault analysis method for the automobile fuel heater acquires an initial database comprising a rubber tube number, a rubber tube head coordinate and a rubber tube tail coordinate according to a heater pipeline topological graph, acquires bending angles of all rubber tubes through the initial database, judges the rubber tubes as pre-investigation rubber tubes when the bending angles are larger than a set angle, and generates a first investigation instruction to prompt investigation staff to inspect the pre-investigation rubber tubes. According to the fault analysis method disclosed by the invention, the rubber pipe with high fault probability is set as the pre-investigation rubber pipe, so that the investigation range is reduced for investigation personnel, the investigation blindness is reduced, the investigation time is saved, and the investigation efficiency is improved.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a fault analysis method, a fault analysis system, terminal equipment and a fault analysis medium for an automobile fuel heater.
Background
The automobile fuel heater comprises an ignitable heater and a water jacket sleeved outside the heater, water is stored in the water jacket, a water outlet and a water inlet are formed in the water jacket, a circulating water pipe is communicated between the water outlet and the water inlet, the circulating water pipe comprises a plurality of hard pipes and a rubber pipe arranged between the hard pipes, and the rubber pipe is used for preventing interference with other instruments in an engine cover of an automobile; the circulating water pipe is communicated with a radiating fin, and the radiating fin is provided with a valve; when the water jacket is in operation, the heater heats water in the water jacket, and the hot water flows through the circulating water pipe and dissipates heat through the radiating fins.
Under the general circumstances, the automobile fuel heater can appear the trouble such as water pump trouble, ignition, the overheated, pipeline of heater do not circulate, and when taking place the overheated trouble of heater, the maintenance personnel is blind detection every rubber tube generally, and maintenance efficiency is very low.
Disclosure of Invention
In view of the foregoing drawbacks or shortcomings of the prior art, the present invention is directed to a method, system, terminal device, and medium for analyzing a failure of an automotive fuel heater.
In a first aspect, the present invention provides a method for analyzing faults of an automotive fuel heater, comprising the steps of:
s100, acquiring an initial database according to a heater pipeline topological graph, wherein the initial database comprises rubber tube numbers, and head coordinates and tail coordinates corresponding to the rubber tube numbers; the heater comprises a plurality of rubber pipes, each rubber pipe is provided with a unique rubber pipe number, the head coordinates and the tail coordinates are coordinates of two ends of the rubber pipe respectively, and according to the trend of water flow of the heater, the two ends of the rubber pipe are connected with a front water pipe arranged at the upstream and a rear water pipe arranged at the downstream;
s200, obtaining bending angles of the rubber pipes according to the initial database, wherein the bending angles are included angles between connecting lines of the head coordinates and the tail coordinates of the rubber pipes and the front water pipes;
S300, judging the magnitude of the bending angle and a preset angle, and setting the rubber tube corresponding to the bending angle as a pre-investigation rubber tube and the rubber tube number corresponding to the pre-investigation rubber tube as a pre-investigation number when the bending angle is larger than the preset angle;
s400, generating a first checking instruction, wherein the first checking instruction is used for reminding checking the pre-checking rubber tube corresponding to the pre-checking number.
According to the technical scheme provided by the invention, after the step S100, the step S200 further comprises the following steps:
s110, acquiring the number of rubber pipes according to the initial database;
s120, judging the number of the rubber tubes and the preset number, if the number of the rubber tubes is larger than or equal to the preset number, executing the step S130, and if the number of the rubber tubes is smaller than the preset number, executing the step S140;
s130, continuing to execute the step S200;
s140, generating a second checking instruction, wherein the second checking instruction is used for reminding checking non-rubber pipe factors, and the non-rubber pipe factors at least comprise water pump faults.
According to the technical scheme provided by the invention, the step S400 comprises the following steps:
s410, acquiring a vehicle body topological graph, wherein the vehicle body topological graph comprises the layout of parts in a front engine hood of an automobile;
S420, comparing the vehicle body topological graph with the heater pipeline topological graph to obtain an operable set and an inoperable set, wherein the operable set consists of the pre-investigation numbers of the pre-investigation rubber pipes with operable positions, and the inoperable set consists of the pre-investigation numbers of the pre-investigation rubber pipes without operable positions;
s430, generating a third checking instruction, wherein the third checking instruction is used for reminding checking the pre-checking rubber tube corresponding to the pre-checking number in the operable set.
According to the technical scheme provided by the invention, the step S400 comprises the following steps:
s401, acquiring the water pressure difference between the front water pipe and the rear water pipe at two ends of each pre-investigation rubber pipe;
s402, judging the magnitude of the hydraulic pressure difference and the preset pressure difference corresponding to each pre-investigation rubber tube, and if the hydraulic pressure difference of at least one pre-investigation rubber tube is larger than or equal to the preset pressure difference, setting the most upstream pre-investigation rubber tube as a fault rubber tube, wherein the rubber tube number corresponding to the fault rubber tube is a fault number;
s403, generating a fourth troubleshooting instruction, wherein the fourth troubleshooting instruction is used for reminding troubleshooting the fault rubber tube corresponding to the fault number.
According to the technical scheme provided by the invention, the step S403 comprises the following steps:
s4031, constructing a differential pressure database, wherein the differential pressure database at least comprises the fault numbers and differential pressure sequences corresponding to the fault numbers, and the differential pressure sequences comprise a plurality of hydraulic differential pressures acquired in a preset period;
s4032, setting the water pressure differential to be a first differential pressure when the water pressure differential is larger than a preset differential pressure, and setting the water pressure differential to be a second differential pressure when the water pressure differential is smaller than or equal to the preset differential pressure;
s4033, acquiring at least one normal differential pressure sequence and at least one abnormal differential pressure sequence in the differential pressure sequence, wherein the normal differential pressure sequence comprises at least one first differential pressure, and all the first differential pressures in each normal differential pressure sequence are sequentially and adjacently arranged; each abnormal differential pressure sequence comprises at least one second differential pressure, and all the second differential pressures in each abnormal differential pressure sequence are sequentially and adjacently arranged;
s4034, when the normal differential pressure sequence and the abnormal differential pressure sequence are alternately arranged, marking the fault number as a first fault number, enabling the corresponding fault rubber tube to be a first fault rubber tube, and sending a first alarm instruction, wherein the first alarm instruction is used for reminding and checking whether foreign matters are extruded frequently around the first fault rubber tube.
According to the technical scheme provided by the invention, the differential pressure database is constructed by the following steps:
s4035, judging that all the water pressure differences in the pressure difference sequence are the first pressure differences within a second preset time period, marking the fault number corresponding to the pressure difference sequence as a second fault number, marking the fault rubber tube corresponding to the fault number as a second fault rubber tube, and sending a second alarm instruction, wherein the second alarm instruction is used for reminding and checking whether the second fault rubber tube is internally blocked.
According to the technical scheme provided by the invention, the front water pipe or the rear water pipe is communicated with the radiating fin, and the radiating fin is provided with the switch valve; the step S4035 further comprises the following steps:
s4036, closing the switch valve adjacent to the downstream of the second fault rubber pipe;
s4037, standing for a third preset time period, and then opening the switch valve;
s4038, closing the second alarm instruction when the water pressure difference corresponding to the second failure rubber tube is judged to be the second pressure difference.
In a second aspect, the present invention provides a fault analysis system for an automotive fuel heater, comprising:
the data storage module is configured to acquire an initial database according to the heater pipeline topological graph, wherein the initial database comprises rubber tube numbers, and head coordinates and tail coordinates corresponding to the rubber tube numbers; the heater comprises a plurality of rubber pipes, each rubber pipe is provided with a unique rubber pipe number, the head coordinates and the tail coordinates are coordinates of two ends of the rubber pipe respectively, and according to the trend of water flow of the heater, the two ends of the rubber pipe are connected with a front water pipe arranged at the upstream and a rear water pipe arranged at the downstream;
The calculation module is configured to obtain a bending angle of each rubber pipe according to the initial database, wherein the bending angle is an included angle between a connecting line of the head coordinates and the tail coordinates of each rubber pipe and the front water pipe;
the judging module is configured to judge the magnitude of the bending angle and a preset angle, and when the bending angle is larger than the preset angle, the rubber tube corresponding to the bending angle is set to be a pre-check rubber tube, and the rubber tube number corresponding to the pre-check rubber tube is set to be a pre-check number;
the execution module is configured to generate a first checking instruction, and the first checking instruction is used for reminding checking the pre-checking rubber tube corresponding to the pre-checking number.
In a third aspect, the present invention proposes a terminal device comprising a memory, a processor and a computer program stored in said memory and executable on said processor, said processor implementing the steps of the method for analyzing a fault of an automotive fuel heater as described above when said computer program is executed.
In a fourth aspect, the present invention proposes a computer readable storage medium having a computer program which, when executed by a processor, implements the steps of the automotive fuel heater fault analysis method as described above.
In summary, the invention provides a failure analysis method for an automobile fuel heater, which is characterized in that an initial database comprising a hose number, a hose head coordinate and a hose tail coordinate is obtained according to a heater pipeline topological diagram, the bending angle of each hose is obtained through the initial database, when the bending angle is larger than a set angle, the hose is judged to be a pre-check hose, and a first check instruction is generated to prompt a check person to check the pre-check hose. According to the fault analysis method disclosed by the invention, the rubber pipe with high fault probability is set as the pre-investigation rubber pipe, so that the investigation range is reduced for investigation personnel, the investigation blindness is reduced, the investigation time is saved, and the investigation efficiency is improved.
Drawings
FIG. 1 is a flow chart of a fault analysis method for an automobile fuel heater according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a rubber tube and a front-mounted water pipe provided by the embodiment of the invention when the directions of extension lines of the front-mounted water pipe and the rear-mounted water pipe are approximately transverse and the bending angle is larger than a preset angle;
FIG. 3 is a schematic diagram of a rubber tube and a front-mounted water pipe provided by the embodiment of the invention when the directions of extension lines of the front-mounted water pipe and the rear-mounted water pipe are approximately transverse and the bending angle is smaller than a preset angle;
FIG. 4 is a schematic diagram of a rubber tube and a front-mounted water pipe provided by the embodiment of the invention when the extending line direction of the front-mounted water pipe and the rear-mounted water pipe is approximately longitudinal and the bending angle is larger than a preset angle;
FIG. 5 is a schematic diagram of a rubber tube and a front-mounted water pipe provided by the embodiment of the invention when the extending line direction of the front-mounted water pipe and the rear-mounted water pipe is approximately longitudinal and the bending angle is smaller than a preset angle;
FIG. 6 is a schematic diagram of differential pressure versus time provided in example 2 of the present invention;
FIG. 7 is a schematic diagram of differential pressure versus time provided in example 3 of the present invention;
fig. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
1. A front water pipe; 2. a rear water pipe; 3. a rubber tube; 700. a computer system; 701. a CPU; 702. a ROM; 703. a RAM; 704. a bus; 705. an I/O interface; 706. an input section; 707. an output section; 708. a storage section; 709. a communication section; 710. a driver; 711. removable media.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Example 1
As mentioned in the background art, the invention provides a fault analysis method for an automobile fuel heater, as shown in fig. 1, comprising the following steps:
s100, acquiring an initial database according to a heater pipeline topological graph, wherein the initial database comprises rubber tube numbers, and head coordinates and tail coordinates corresponding to the rubber tube numbers; the heater comprises a plurality of rubber hoses 3, each rubber hose 3 is provided with a unique rubber hose number, the head coordinates and the tail coordinates are coordinates of two ends of the rubber hose 3 respectively, and according to the trend of water flow of the heater, the two ends of the rubber hose 3 are connected with a front water pipe 1 arranged at the upstream and a rear water pipe 2 arranged at the downstream;
the water pipe of the heater comprises a plurality of hard steel pipes, two hard steel pipes with different directions can be communicated through hard elbows, but when the curvature is large or the space is limited, the hard elbows can be replaced by rubber pipes 3 to communicate two adjacent hard steel pipes; the heater pipeline topological graph is obtained through the layout of automobile parts before the hard steel pipes and the rubber pipes 3 are paved, and the heater pipeline topological graph comprises the layout of a plurality of hard steel pipes and the rubber pipes 3.
The front water pipe 1 and the rear water pipe 2 are the hard steel pipes, the head coordinates of the rubber pipe 3 are the tail coordinates of the front water pipe 1, the tail coordinates of the rubber pipe 3 are the front coordinates of the rear water pipe 2, and the connection schematic diagrams of the front water pipe 1, the rear water pipe 2 and the rubber pipe 3 are shown in figures 2-5; fig. 2 is a schematic diagram of connection of the front water pipe 1, the rear water pipe 2 and the rubber pipe 3 when the direction of extension lines of the front water pipe 1 and the rear water pipe 2 is approximately transverse and the bending angle is larger than a preset angle, and fig. 3 is a schematic diagram of connection of the front water pipe 1, the rear water pipe 2 and the rubber pipe 3 when the direction of extension lines of the front water pipe 1 and the rear water pipe 2 is approximately transverse and the bending angle is smaller than the preset angle, wherein the transverse direction is the width direction of an automobile; fig. 4 is a schematic diagram of connection of the front water pipe 1, the rear water pipe 2 and the rubber pipe 3 when the direction of extension lines of the front water pipe 1 and the rear water pipe 2 is approximately longitudinal and the bending angle is larger than a preset angle; fig. 5 is a schematic diagram of connection of the front water pipe 1, the rear water pipe 2 and the rubber pipe 3 when the extending line direction of the front water pipe 1 and the rear water pipe 2 is approximately longitudinal and the bending angle is smaller than the preset angle, wherein the longitudinal direction is the length direction of the automobile.
S200, obtaining bending angles of the rubber pipes 3 according to the initial database, wherein the bending angles are included angles between connecting lines of the head coordinates and the tail coordinates of the rubber pipes 3 and the front water pipe 1; wherein alpha in the figure is the bending angle; the head coordinates and the tail coordinates each include a lateral coordinate and a longitudinal coordinate.
S300, judging the magnitude of the bending angle and a preset angle, and setting the rubber tube 3 corresponding to the bending angle as a pre-investigation rubber tube and the rubber tube number corresponding to the pre-investigation rubber tube as a pre-investigation number when the bending angle is larger than the preset angle;
if the preset angle is 90 ° and the vehicle stands right in front of the vehicle head, the lower left corner of the vehicle is the origin, as shown in fig. 2, the bending angle is greater than 90 °, that is, the abscissa of the head coordinate is smaller than the abscissa of the tail coordinate, that is, the direction from the abscissa of the head coordinate to the abscissa of the tail coordinate is the same as the water flow direction, so that the probability of bending the rubber tube 3 is smaller. As shown in fig. 3, the bending angle is smaller than 90 °, that is, the abscissa of the tail coordinate is smaller than the abscissa of the head coordinate, that is, the direction from the abscissa of the head coordinate to the abscissa of the tail coordinate is opposite to the water flow direction, so that the probability of bending the hose 3 is high. As shown in fig. 4, the bending angle is greater than 90 °, that is, the ordinate of the tail coordinate is greater than the ordinate of the head coordinate, that is, the direction from the abscissa of the head coordinate to the abscissa of the tail coordinate is the same as the water flow direction, so that the probability of bending the hose 3 is small. As shown in fig. 5, the bending angle is smaller than 90 °, that is, the ordinate of the tail coordinate is smaller than the ordinate of the head coordinate, that is, the direction from the ordinate of the head coordinate to the ordinate of the tail coordinate is opposite to the water flow direction, so that the probability of bending the hose 3 is high. The pre-investigation rubber tube is the rubber tube 3 with high bending probability.
S400, generating a first checking instruction, wherein the first checking instruction is used for reminding checking the pre-checking rubber tube corresponding to the pre-checking number. When whether the overheat fault of the heater is caused by bending of the rubber tube 3 is to be checked, the rubber tube 3 with high bending probability is selected for checking instead of the blind checking in the prior art, so that the checking efficiency is improved, and the checking time is shortened.
In a preferred embodiment, after step S100, step S200 further comprises the following steps:
s110, acquiring the number of rubber pipes according to the initial database;
s120, judging the number of the rubber tubes and the preset number, if the number of the rubber tubes is larger than or equal to the preset number, executing the step S130, and if the number of the rubber tubes is smaller than the preset number, executing the step S140;
s130, continuing to execute the step S200;
s140, generating a second checking instruction, wherein the second checking instruction is used for reminding checking non-rubber pipe factors, and the non-rubber pipe factors at least comprise water pump faults.
Wherein, not only the hose 3 is bent but also the heater is overheated, and the non-hose factors including the water pump failure, the valve of the cooling fin not opened, the water inlet and outlet diameters smaller, etc. may also cause the heater to overheat. If the number of the rubber tubes 3 is small, the probability of overheat failure of the heater caused by bending is small, so that the non-rubber tube factors can be checked first.
In a preferred embodiment, step S400 includes the steps of:
s410, acquiring a vehicle body topological graph, wherein the vehicle body topological graph comprises the layout of parts in a front engine hood of an automobile;
s420, comparing the vehicle body topological graph with the heater pipeline topological graph to obtain an operable set and an inoperable set, wherein the operable set consists of the pre-investigation numbers of the pre-investigation rubber pipes with operable positions, and the inoperable set consists of the pre-investigation numbers of the pre-investigation rubber pipes without operable positions; wherein when arranging the front water pipe 1, the rear water pipe 2 and the hose 3, there may be a case where the hose 3 is placed under an automobile part to save space, resulting in the hose 3 being in an invisible state, such hose 3 cannot be operated when the automobile part is not removed, i.e., such hose 3 does not have an operable position, but the exposed hose 3 is in an visible state and can be operated, i.e., such hose 3 is in an operable position.
S430, generating a third checking instruction, wherein the third checking instruction is used for reminding checking the pre-checking rubber tube corresponding to the pre-checking number in the operable set; all the pre-investigation rubber pipes are divided into operable and inoperable, firstly, the operable rubber pipes 3 are subjected to investigation, and if the problem that the heater is overheated can be solved after the investigation, the rubber pipes 3 without operable positions are subjected to investigation without dismantling automobile parts, so that the investigation time is saved, and the investigation efficiency is improved.
The fault analysis concept of this embodiment is: when the heater has overheat fault, firstly judging the total number of the rubber tubes 3, if the total number is less, checking the factors which can cause the fault except the rubber tubes 3, if the total number is more, the probability of bending the rubber tubes 3 to cause the fault is greater, so the rubber tubes 3 are checked firstly, and the idea of checking the rubber tubes 3 is as follows: the rubber tube 3 with the bending angle larger than the preset angle is found out, the probability that the rubber tube 3 is bent is high, the rubber tube 3 is called as the pre-checking rubber tube, and the pre-checking rubber tube with the operable position is found out for checking by comparing the vehicle body topological diagram with the heater pipeline topological diagram.
Optionally, the automobile is provided with a fault indicator lamp, when the third checking instruction is generated, the fault indicator lamp is turned on, the automobile is also provided with a reset button, after checking the pre-checking rubber tube corresponding to the pre-checking number in the operable set, a checking person can reset the system through the reset button, if no fault exists, the fault indicator lamp is turned off, and if the fault still exists, the disassembly of automobile parts can be considered to check the rubber tube 3 which does not have the operable position.
Example 2
The same points as those of the embodiment 1 are not repeated, and the difference is that the embodiment does not distinguish the rubber tube 3 with the operable position from the rubber tube 3 without the operable position, but directly analyzes the bent rubber tube 3 through water pressure, and the embodiment is applicable to a fuel heater with heat radiating fins connected in series; step S400 includes the steps of:
s401, acquiring the water pressure difference between the front water pipe 1 and the rear water pipe 2 at two ends of each pre-investigation rubber pipe; the front water pipe 1 and the rear water pipe 2 are hard steel pipes, and a simple pressure gauge is arranged at the end, close to the rubber pipe 3, of the front water pipe 1 and the rear water pipe 2 and is used for acquiring water pressure, and the water pressure difference between the front water pipe 1 and the rear water pipe 2 is obtained through difference.
S402, judging the magnitude of the hydraulic pressure difference and the preset pressure difference corresponding to each pre-investigation rubber tube, and if the hydraulic pressure difference of at least one pre-investigation rubber tube is larger than or equal to the preset pressure difference, setting the most upstream pre-investigation rubber tube as a fault rubber tube, wherein the rubber tube number corresponding to the fault rubber tube is a fault number; since this embodiment is suitable for a fuel heater with heat sinks connected in series, if the upstream hose 3 is bent, the water pressure of the downstream hose 3 will be affected, so when the water pressure differential of at least one of the pre-inspection hoses is large, the most upstream hose is judged to be a failed hose.
S403, generating a fourth troubleshooting instruction, wherein the fourth troubleshooting instruction is used for reminding troubleshooting the fault rubber tube corresponding to the fault number. When the fourth troubleshooting instruction is generated, the fault indicator lamp in the automobile can be lightened, the display screen in the automobile can display the fault number of the fault rubber tube, an troubleshooter only needs to troubleshoot the appointed fault rubber tube, after troubleshooting, the heater is reset through the reset button, if no fault exists, the indicator lamp is extinguished, if the fault exists, the display screen can display the next fault code again, and the troubleshooting is prompted. According to the fault analysis method, the fault codes are obtained, and the investigation personnel have the directional investigation designated rubber tube 3, so that the investigation time is greatly shortened, and the investigation efficiency is improved.
In a preferred embodiment, step S403 includes the steps of:
s4031, constructing a differential pressure database, wherein the differential pressure database at least comprises the fault numbers and differential pressure sequences corresponding to the fault numbers, and the differential pressure sequences comprise a plurality of hydraulic differential pressures acquired in a preset period;
s4032, setting the water pressure differential to be a first differential pressure when the water pressure differential is larger than a preset differential pressure, and setting the water pressure differential to be a second differential pressure when the water pressure differential is smaller than or equal to the preset differential pressure; wherein when the fault number is obtained in step S402, the differential pressure database is synchronously generated, so that the first element in the differential pressure sequence is definitely the first differential pressure;
S4033, acquiring at least one normal differential pressure sequence and at least one abnormal differential pressure sequence in the differential pressure sequence, wherein the normal differential pressure sequence comprises at least one first differential pressure, and all the first differential pressures in each normal differential pressure sequence are sequentially and adjacently arranged;each abnormal differential pressure sequence comprises at least one second differential pressure, and all the second differential pressures in each abnormal differential pressure sequence are sequentially and adjacently arranged; as shown in FIG. 6, the differential pressure-time diagram, with time on the abscissa in milliseconds and differential pressure on the ordinate in Pa, includes a plurality of discrete hydraulic differential pressures acquired at predetermined periods, where p 0 For the preset pressure difference, p 1 -p 11 Representing the pressure difference, t 1 -t 11 Representing a plurality of moments, wherein the time length between adjacent moments is the preset period, and the time length is larger than p in the figure 0 Are all the first pressure difference, less than p 0 Are both said second differential pressure; the abnormal differential pressure sequence includes [ p ] 1 ，p 2 ，p 3 ]And [ p ] 8 ，p 9 ]The method comprises the steps of carrying out a first treatment on the surface of the The normal differential pressure sequence includes [ p ] 4 ，p 5 ，p 6 ，p 7 ][p 10 ，p 11 ]。
S4034, when the normal differential pressure sequence and the abnormal differential pressure sequence are alternately arranged, marking the fault number as a first fault number, enabling the corresponding fault rubber tube to be a first fault rubber tube, and sending a first alarm instruction, wherein the first alarm instruction is used for reminding and checking whether foreign matters are extruded frequently around the first fault rubber tube.
In some situations, if the rubber tube 3 is close to an automobile part, when the automobile turns, the automobile part presses the rubber tube 3 due to inertia, and then the hydraulic pressure difference is increased; when the automobile returns, the automobile parts are separated from the rubber tube 3, the hydraulic pressure difference returns to normal, and the hydraulic pressure difference-time schematic diagram corresponding to the scene is shown in fig. 6; the abnormal sequence corresponds to a scene of pressing the rubber tube 3, and the normal sequence corresponds to a scene of separating the automobile parts from the rubber tube 3. The number of elements in the abnormal sequence and the normal sequence is determined by the turning time length and the return time length of the automobile.
When the normal pressure difference sequence and the abnormal pressure difference sequence are alternately arranged, the scene is satisfied, so that only whether the first failure rubber tube has parts or not and the distance between the parts is short is checked; optionally, when the first alarm instruction is sent out, a fault indicator is turned on, and the first fault number and a fault cause of 'foreign matter extrusion' are displayed on an automobile display screen; therefore, an inspector can know the fault point and the fault reason through the automobile display screen and carry related tools, so that the inspection time is greatly saved, and the inspection efficiency is improved.
If the automobile part with frequent extrusion as the first failure rubber tube can be removed, the overheat fault of the heater caused in the above scene can be eliminated, but if the part is not removed, a hard elastic tube can be sleeved at the contact part of the rubber tube 3 and the part, and optionally, the hard elastic tube can be a double-coil spring with small spring pitch; the hard elastic tube prevents the parts from extruding the rubber tube 3 to a certain extent, and can effectively avoid the overheat phenomenon of the heater caused in the scene.
Example 3
In the fault analysis method described in embodiment 2, not only the fault point but also the fault cause can be obtained, but the fault cause is not limited to the "foreign matter extrusion" mentioned in embodiment 2, and this embodiment is different from embodiment 2 in that the fault cause is different, and further includes the following steps after the component differential pressure database:
s4035, judging that all the water pressure differences in the pressure difference sequence are the first pressure differences within a second preset time period, marking the fault number corresponding to the pressure difference sequence as a second fault number, marking the fault rubber tube corresponding to the fault number as a second fault rubber tube, and sending a second alarm instruction, wherein the second alarm instruction is used for reminding and checking whether the second fault rubber tube is internally blocked.
In some situations, if the impurities in the rubber tube 3 are excessive, so that the rubber tube 3 is blocked (including full blocking or partial blocking), the hydraulic pressure difference is always greater than a preset pressure difference, and the pressure difference-time diagram corresponding to the situations is shown in fig. 7.
When a second alarm instruction is sent, a fault indicating lamp on the automobile is turned on, meanwhile, the second fault number and the fault reason 'internal blocking' are displayed on an automobile display screen, and an inspector is prompted to carry related tools to specify a fault point for inspection, so that the inspection time is saved.
In a preferred embodiment, the front water pipe 1 or the rear water pipe 2 is communicated with a radiating fin, and the radiating fin is provided with a switch valve; the step S4035 further comprises the following steps:
s4036, closing the switch valve adjacent to the downstream of the second fault rubber pipe;
s4037, standing for a third preset time period, and then opening the switch valve;
s4038, closing the second alarm instruction when the water pressure difference corresponding to the second failure rubber tube is judged to be the second pressure difference.
The cooling fins are connected with the front water pipe 1, the rear water pipe 2 and the rubber pipe 3 in series, water flows through the front water pipe 1 and then flows through the rubber pipe 3, flows to a pipeline in the cooling fins from the rubber pipe 3, flows out of the switch valve to the rear water pipe 2 of the rubber pipe 3 or the front water pipe 1 of the rubber pipe 3, when the switch valve is closed, the water pressure in front of the switch valve is increased, when the switch valve is opened again after a third preset time period is kept stand, water with larger water pressure flows into the second fault rubber pipe, and when the second fault rubber pipe is not seriously blocked, impurities in the second fault rubber pipe are flushed to the downstream under the action of the larger water pressure, so that the problem of internal blocking of the second fault rubber pipe is solved. The above measures can be completed by the system of the heater, manual investigation is not needed, and the investigation efficiency is improved.
In a preferred embodiment, after the switch valve is opened in step S4037, if the second alarm command is not closed, that is, the problem of the second failed rubber tube being blocked cannot be solved by the larger water pressure, the second failed rubber tube needs to be replaced by the rubber tube 3 with the larger inner diameter through manual investigation.
Example 4
On the basis of the above embodiment, the present invention also provides an automobile fuel heater fault analysis system, including:
the data storage module is configured to acquire an initial database according to the heater pipeline topological graph, wherein the initial database comprises rubber tube numbers, and head coordinates and tail coordinates corresponding to the rubber tube numbers; the heater comprises a plurality of rubber hoses 3, each rubber hose 3 is provided with a unique rubber hose number, the head coordinates and the tail coordinates are coordinates of two ends of the rubber hose 3 respectively, and according to the trend of water flow of the heater, the two ends of the rubber hose 3 are connected with a front water pipe 1 arranged at the upstream and a rear water pipe 2 arranged at the downstream;
the calculating module is configured to obtain a bending angle of each rubber tube 3 according to the initial database, wherein the bending angle is an included angle between a connecting line of the head coordinates and the tail coordinates of each rubber tube 3 and the front water tube 1;
The judging module is configured to judge the magnitude of the bending angle and a preset angle, and when the bending angle is larger than the preset angle, the rubber tube corresponding to the bending angle is set to be a pre-check rubber tube, and the rubber tube number corresponding to the pre-check rubber tube is set to be a pre-check number;
the execution module is configured to generate a first checking instruction, and the first checking instruction is used for reminding checking the pre-checking rubber tube corresponding to the pre-checking number.
When the heater has overheat fault, the fault analysis method provided by the invention comprises the following steps: firstly judging the total number of the rubber tubes 3, if the total number of the rubber tubes 3 is small, checking the factors which cause the fault except the rubber tubes 3, and if the total number of the rubber tubes 3 is large, the probability of the rubber tubes 3 causing the fault is large, so that the rubber tubes 3 are checked firstly; the method for checking the rubber tube 3 comprises the following steps: the hose 3 with larger bending is obtained through the bending angle to be used as a pre-investigation hose, and the pre-investigation hose is subjected to investigation through two methods, namely, the method one: firstly, the pre-investigation rubber tube with an operable position is found for investigation by comparing the vehicle body topological graph with the heater pipeline topological graph, and then the pre-investigation rubber tube without the operable position is investigated; the second method is as follows: and obtaining the failed rubber tube 3 and the reason of the failure through a database analysis method. The fault analysis method provided by the invention avoids blindness of manual investigation, improves the investigation directivity, saves the investigation time and improves the investigation efficiency.
The system provided by the embodiment of the invention can realize each process realized by the embodiment of the method, has corresponding functional modules and beneficial effects, and is not repeated here.
Example 5
The present invention proposes a terminal device whose computer system 700 includes a CPU (central processing unit) 701, as shown in fig. 8, which can perform various appropriate actions and processes in accordance with a program stored in a ROM (read only memory) 702 or a program loaded from a storage section 708 into a RAM (random access memory) 703. In the RAM703, various programs and data required for the system operation are also stored. The CPU701, ROM702, and RAM703 are connected to each other through a bus 704. An I/O (input/output) interface 705 is also connected to the bus 704. The following components are connected to the I/O interface 705: an input section 706 including a keyboard, a mouse, and the like; an output portion 707 including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, a speaker, and the like; a storage section 708 including a hard disk or the like; and a communication section 709 including a network interface card such as a LAN card, a modem, or the like. The communication section 709 performs communication processing via a network such as the internet. The drives are also connected to the I/O interface 705 as needed. A removable medium 711 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 710 as necessary, so that a computer program read therefrom is mounted into the storage section 708 as necessary.
In particular, the process described above with reference to flowchart 1 may be implemented as a computer software program according to an embodiment of the invention. For example, embodiment 1 of the present invention includes a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flowchart. In such embodiments, the computer program may be downloaded and installed from a network via a communication portion, and/or installed from a removable medium. When executed by the CPU701, the computer program performs the functions defined above in the present computer system 700.
Example 6
The present invention also provides a computer-readable medium carrying one or more programs which, when executed by one of the electronic devices, cause the electronic devices to implement the method for analyzing a failure of an automotive fuel heater as described in the above embodiments.
It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functions of two or more modules or units described above may be embodied in one module or unit in accordance with the disclosed embodiments of the invention. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.
Furthermore, although the steps of the methods of the present invention are depicted in the accompanying drawings in a particular order, this is not required to either imply that the steps must be performed in that particular order, or that all of the illustrated steps be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc. From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware.
The above description is only illustrative of the preferred embodiments of the present invention and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the invention referred to in the present invention is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present invention (but not limited to) having similar functions are replaced with each other.
Claims (8)
1. The fault analysis method for the automobile fuel heater is characterized by comprising the following steps of:
s100, acquiring an initial database according to a heater pipeline topological graph, wherein the initial database comprises rubber tube numbers, and head coordinates and tail coordinates corresponding to the rubber tube numbers; the heater comprises a plurality of rubber hoses (3), each rubber hose (3) is provided with a unique rubber hose number, the head coordinates and the tail coordinates are the coordinates of two ends of the rubber hose (3), and according to the water flow trend of the heater, the two ends of the rubber hose (3) are connected with a front water pipe (1) arranged at the upstream and a rear water pipe (2) arranged at the downstream;
s200, obtaining bending angles of the rubber pipes (3) according to the initial database, wherein the bending angles are included angles between connecting lines of the head coordinates and the tail coordinates of the rubber pipes (3) and the front water pipe (1);
s300, judging the magnitude of the bending angle and a preset angle, and setting the rubber tube (3) corresponding to the bending angle as a pre-checking rubber tube and the rubber tube number corresponding to the pre-checking rubber tube as a pre-checking number when the bending angle is larger than the preset angle;
S400, generating a first checking instruction, wherein the first checking instruction is used for reminding checking the pre-checking rubber tube corresponding to the pre-checking number;
step S400 includes the steps of:
s410, acquiring a vehicle body topological graph, wherein the vehicle body topological graph comprises the layout of parts in a front engine hood of an automobile;
s420, comparing the vehicle body topological graph with the heater pipeline topological graph to obtain an operable set and an inoperable set, wherein the operable set consists of the pre-investigation numbers of the pre-investigation rubber pipes with operable positions, and the inoperable set consists of the pre-investigation numbers of the pre-investigation rubber pipes without operable positions;
s430, generating a third checking instruction, wherein the third checking instruction is used for reminding checking the pre-checking rubber tube corresponding to the pre-checking number in the operable set;
s401, acquiring the water pressure difference between the front water pipe (1) and the rear water pipe (2) at two ends of each pre-investigation rubber pipe;
s402, judging the magnitude of the hydraulic pressure difference and the preset pressure difference corresponding to each pre-investigation rubber tube, and if the hydraulic pressure difference of at least one pre-investigation rubber tube is larger than or equal to the preset pressure difference, setting the most upstream pre-investigation rubber tube as a fault rubber tube, wherein the rubber tube number corresponding to the fault rubber tube is a fault number;
S403, generating a fourth troubleshooting instruction, wherein the fourth troubleshooting instruction is used for reminding troubleshooting the fault rubber tube corresponding to the fault number.
2. The method for analyzing the failure of the fuel heater of an automobile according to claim 1, further comprising the steps of, after step S100, before step S200:
s110, acquiring the number of rubber pipes according to the initial database;
s120, judging the number of the rubber tubes and the preset number, if the number of the rubber tubes is larger than or equal to the preset number, executing the step S130, and if the number of the rubber tubes is smaller than the preset number, executing the step S140;
s130, continuing to execute the step S200;
s140, generating a second checking instruction, wherein the second checking instruction is used for reminding checking non-rubber pipe factors, and the non-rubber pipe factors at least comprise water pump faults.
3. The method for analyzing the failure of the fuel heater of an automobile according to claim 1, wherein the step S403 includes the steps of:
s4031, constructing a differential pressure database, wherein the differential pressure database at least comprises the fault numbers and differential pressure sequences corresponding to the fault numbers, and the differential pressure sequences comprise a plurality of hydraulic differential pressures acquired in a preset period;
s4032, setting the water pressure differential to be a first differential pressure when the water pressure differential is larger than a preset differential pressure, and setting the water pressure differential to be a second differential pressure when the water pressure differential is smaller than or equal to the preset differential pressure;
S4033, acquiring at least one normal differential pressure sequence and at least one abnormal differential pressure sequence in the differential pressure sequence, wherein the normal differential pressure sequence comprises at least one first differential pressure, and all the first differential pressures in each normal differential pressure sequence are sequentially and adjacently arranged; each abnormal differential pressure sequence comprises at least one second differential pressure, and all the second differential pressures in each abnormal differential pressure sequence are sequentially and adjacently arranged;
s4034, when the normal differential pressure sequence and the abnormal differential pressure sequence are alternately arranged, marking the fault number as a first fault number, enabling the corresponding fault rubber tube to be a first fault rubber tube, and sending a first alarm instruction, wherein the first alarm instruction is used for reminding and checking whether foreign matters are extruded frequently around the first fault rubber tube.
4. The method for analyzing the fault of the fuel heater of the automobile according to claim 3, wherein the step of constructing the differential pressure database further comprises the steps of:
s4035, judging that all the water pressure differences in the pressure difference sequence are the first pressure differences within a second preset time period, marking the fault number corresponding to the pressure difference sequence as a second fault number, marking the fault rubber tube corresponding to the fault number as a second fault rubber tube, and sending a second alarm instruction, wherein the second alarm instruction is used for reminding and checking whether the second fault rubber tube is internally blocked.
5. The fault analysis method of the automobile fuel heater according to claim 4, wherein a radiating fin is communicated with the front water pipe (1) or the rear water pipe (2), and a switch valve is arranged on the radiating fin; the step S4035 further comprises the following steps:
s4036, closing the switch valve adjacent to the downstream of the second fault rubber pipe;
s4037, standing for a third preset time period, and then opening the switch valve;
s4038, closing the second alarm instruction when the water pressure difference corresponding to the second failure rubber tube is judged to be the second pressure difference.
6. An automotive fuel heater fault analysis system, comprising:
the data storage module is configured to acquire an initial database according to the heater pipeline topological graph, wherein the initial database comprises rubber tube numbers, and head coordinates and tail coordinates corresponding to the rubber tube numbers; the heater comprises a plurality of rubber hoses (3), each rubber hose (3) is provided with a unique rubber hose number, the head coordinates and the tail coordinates are the coordinates of two ends of the rubber hose (3), and according to the water flow trend of the heater, the two ends of the rubber hose (3) are connected with a front water pipe (1) arranged at the upstream and a rear water pipe (2) arranged at the downstream;
The calculation module is configured to obtain a bending angle of each rubber tube (3) according to the initial database, wherein the bending angle is an included angle between a connecting line of the head coordinates and the tail coordinates of each rubber tube (3) and the front water tube (1);
the judging module is configured to judge the magnitude of the bending angle and a preset angle, and when the bending angle is larger than the preset angle, the rubber tube (3) corresponding to the bending angle is set to be a pre-check rubber tube, and the rubber tube number corresponding to the pre-check rubber tube is set to be a pre-check number;
the execution module is configured to generate a first checking instruction, and the first checking instruction is used for reminding checking the pre-checking rubber tube corresponding to the pre-checking number;
the execution module is configured to acquire a vehicle body topological graph, wherein the vehicle body topological graph comprises the layout of parts in a front engine hood of an automobile; comparing the vehicle body topological graph with the heater pipeline topological graph to obtain an operable set and an inoperable set, wherein the operable set consists of the pre-inspection numbers of the pre-inspection rubber pipes with operable positions, and the inoperable set consists of the pre-inspection numbers of the pre-inspection rubber pipes without operable positions; generating a third checking instruction, wherein the third checking instruction is used for reminding checking the pre-checking rubber pipe corresponding to the pre-checking number in the operable set; acquiring the water pressure difference of the front water pipe (1) and the rear water pipe (2) at two ends of each pre-investigation rubber pipe; judging the magnitude of the hydraulic pressure difference and the preset pressure difference corresponding to each pre-investigation rubber tube, and if the hydraulic pressure difference of at least one pre-investigation rubber tube is larger than or equal to the preset pressure difference, setting the most upstream pre-investigation rubber tube as a fault rubber tube, wherein the rubber tube number corresponding to the fault rubber tube is a fault number; and generating a fourth checking instruction, wherein the fourth checking instruction is used for reminding checking the fault rubber tube corresponding to the fault number.
7. Terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, realizes the steps of the method for analyzing a fault of an automotive fuel heater according to any one of claims 1-5.
8. A computer readable storage medium having a computer program, characterized in that the computer program when executed by a processor implements the steps of the method for analyzing a fault of an automotive fuel heater according to any one of claims 1 to 5.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205716080U (en) * | 2016-06-23 | 2016-11-23 | 温州市博众不锈钢有限公司 | A kind of stainless steel welding tube |
| CN107029334A (en) * | 2011-01-24 | 2017-08-11 | 瑞思迈有限公司 | Humidifier |
| CN117147330A (en) * | 2023-10-17 | 2023-12-01 | 河南富景达橡塑有限公司 | Rubber bending experimental device and experimental method thereof |
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| US8788590B2 (en) * | 2010-04-30 | 2014-07-22 | Iliv Technologies Inc. | Collaboration tool |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107029334A (en) * | 2011-01-24 | 2017-08-11 | 瑞思迈有限公司 | Humidifier |
| CN205716080U (en) * | 2016-06-23 | 2016-11-23 | 温州市博众不锈钢有限公司 | A kind of stainless steel welding tube |
| CN117147330A (en) * | 2023-10-17 | 2023-12-01 | 河南富景达橡塑有限公司 | Rubber bending experimental device and experimental method thereof |
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