CN117386637A - Electronic water pump idling detection method, device, equipment and readable storage medium - Google Patents
Electronic water pump idling detection method, device, equipment and readable storage medium Download PDFInfo
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- CN117386637A CN117386637A CN202311538449.9A CN202311538449A CN117386637A CN 117386637 A CN117386637 A CN 117386637A CN 202311538449 A CN202311538449 A CN 202311538449A CN 117386637 A CN117386637 A CN 117386637A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 284
- 238000001514 detection method Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 claims description 30
- 238000001816 cooling Methods 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000006870 function Effects 0.000 description 8
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011418 maintenance treatment Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/14—Safety means against, or active at, failure of coolant-pumps drives, e.g. shutting engine down; Means for indicating functioning of coolant pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0077—Safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0094—Indicators of rotational movement
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
An electronic water pump idling detection method, an electronic water pump idling detection device, electronic water pump idling detection equipment and a readable storage medium relate to the technical field of electronic water pump control and comprise the steps of controlling the electronic water pump to alternately operate according to a first rotating speed and a second rotating speed within a first preset duration when the electronic water pump is detected to be in an idling state, wherein the first rotating speed is larger than the second rotating speed; and after the first preset duration is over, if the electronic water pump is detected to be in the idle state again, performing idle fault early warning of the first level. Through this application, not only can effectively avoid the bubble to the influence that electronic water pump idles and detects to promote the accuracy that idle running detected, and can also realize the maintenance of whole car cooling function.
Description
Technical Field
The application relates to the technical field of electronic water pump control, in particular to an electronic water pump idling detection method, an electronic water pump idling detection device, electronic water pump idling detection equipment and a readable storage medium.
Background
The electronic water pump is an important component part of the automobile cooling system, and is mainly used for driving the cooling liquid to circulate, absorbing redundant heat of the engine and other parts, and transmitting the redundant heat to the outside air through the heat radiating device. When the water inlet source is disconnected, the water inlet of the water pump is blocked, air exists in the system, and the like, the electronic water pump can not normally pump water in the operation process. And because the idle water pump can not form effective pumping pressure, negative pressure can be formed in the electronic water pump, and finally the electronic water pump is damaged. Therefore, it is very important to effectively realize accurate detection of the idling of the electronic water pump.
In the related art, when the electronic water pump performs idle self-test in self-protection, the problem of idle false detection is often caused by the fact that occasional continuous bubbles pass through the electronic water pump. Therefore, how to effectively avoid the influence of bubbles on the idle detection of the electronic water pump so as to improve the accuracy of the idle detection is a current urgent problem to be solved.
Disclosure of Invention
The application provides an electronic water pump idling detection method, device, equipment and readable storage medium, which can effectively avoid the influence of bubbles on the electronic water pump idling detection so as to improve the idling detection accuracy.
In a first aspect, an embodiment of the present application provides an electronic water pump idling detection method, including:
when the electronic water pump is detected to be in an idle state, controlling the electronic water pump to alternately operate according to a first rotating speed and a second rotating speed within a first preset duration, wherein the first rotating speed is larger than the second rotating speed;
and after the first preset duration is over, if the electronic water pump is detected to be in the idle state again, performing idle fault early warning of the first level.
With reference to the first aspect, in an implementation manner, before the step when the electronic water pump is detected to be in the idle state, the method further includes:
when the fact that the first real-time current corresponding to the electronic water pump at the first rotating speed is smaller than or equal to a first current threshold corresponding to the first rotating speed is detected, judging whether the second real-time current corresponding to the electronic water pump at the second rotating speed is smaller than or equal to a second current threshold corresponding to the second rotating speed or not;
if yes, judging that the electronic water pump is in an idling state;
if not, the electronic water pump is judged to be in a non-idle state.
With reference to the first aspect, in an implementation manner, after the step of detecting that the electronic water pump is in an idle state again, the method further includes:
controlling the electronic water pump to alternately operate according to the first rotating speed and the second rotating speed within a second preset duration;
after the second preset duration is over, if the electronic water pump is still detected to be in the idle state, judging that the electronic water pump is in idle operation and performing idle fault early warning of a second level, wherein the level of the second level is higher than that of the first level.
With reference to the first aspect, in an embodiment, the method further includes: and if the electronic water pump is detected to be in a non-idle state, judging that the electronic water pump is not in idle operation.
With reference to the first aspect, in an implementation manner, after the step of ending the first preset time period or ending the second preset time period, the method further includes:
when the fact that the third real-time current corresponding to the electronic water pump at the first rotating speed is smaller than or equal to a first current threshold corresponding to the first rotating speed is detected, judging whether the fourth real-time current corresponding to the electronic water pump at the second rotating speed is smaller than or equal to a second current threshold corresponding to the second rotating speed;
if yes, judging that the electronic water pump is in an idle state again;
if not, judging that the electronic water pump is detected to be in a non-idle state.
With reference to the first aspect, in an implementation manner, the first current threshold value and the second current threshold value are both smaller than 0.3A.
With reference to the first aspect, in an implementation manner, after the step of ending the first preset time period or ending the second preset time period, the method further includes:
and when the third real-time current corresponding to the first rotation speed of the electronic water pump is detected to be larger than the first current threshold corresponding to the first rotation speed, judging that the electronic water pump is detected to be in a non-idle state.
In a second aspect, an embodiment of the present application provides an electronic water pump idling detection device, including:
the control module is used for controlling the electronic water pump to alternately operate according to a first rotating speed and a second rotating speed within a first preset duration when the electronic water pump is detected to be in an idle state, and the first rotating speed is larger than the second rotating speed;
and the early warning module is used for carrying out first-level idling fault early warning if the electronic water pump is detected to be in an idling state again after the first preset time period is over.
With reference to the second aspect, in one embodiment, the apparatus further includes a detection module for:
when the fact that the first real-time current corresponding to the electronic water pump at the first rotating speed is smaller than or equal to a first current threshold corresponding to the first rotating speed is detected, judging whether the second real-time current corresponding to the electronic water pump at the second rotating speed is smaller than or equal to a second current threshold corresponding to the second rotating speed or not;
if yes, judging that the electronic water pump is in an idling state;
if not, the electronic water pump is judged to be in a non-idle state.
With reference to the second aspect, in one implementation manner, the control module is further configured to control the electronic water pump to alternately operate at the first rotation speed and the second rotation speed within a second preset duration;
and the early warning module is also used for judging that the electronic water pump runs in an idling mode and carrying out idling fault early warning of a second level after the second preset time period is over if the electronic water pump is still detected to be in an idling state, wherein the level of the second level is higher than that of the first level.
With reference to the second aspect, in one embodiment, the detection module is further configured to: and if the electronic water pump is detected to be in a non-idle state, judging that the electronic water pump is not in idle operation.
With reference to the second aspect, in one embodiment, the detection module is further configured to:
when the fact that the third real-time current corresponding to the electronic water pump at the first rotating speed is smaller than or equal to a first current threshold corresponding to the first rotating speed is detected, judging whether the fourth real-time current corresponding to the electronic water pump at the second rotating speed is smaller than or equal to a second current threshold corresponding to the second rotating speed;
if yes, judging that the electronic water pump is in an idle state again;
if not, judging that the electronic water pump is detected to be in a non-idle state.
With reference to the second aspect, in one embodiment, the first current threshold and the second current threshold are both less than 0.3A.
With reference to the second aspect, in one embodiment, the detection module is further configured to: and when the third real-time current corresponding to the first rotation speed of the electronic water pump is detected to be larger than the first current threshold corresponding to the first rotation speed, judging that the electronic water pump is detected to be in a non-idle state.
In a third aspect, an embodiment of the present application provides an electronic water pump idle detection device, where the electronic water pump idle detection device includes a processor, a memory, and an electronic water pump idle detection program stored on the memory and executable by the processor, where the electronic water pump idle detection program, when executed by the processor, implements the steps of the electronic water pump idle detection method as described above.
In a fourth aspect, embodiments of the present application provide a computer readable storage medium having stored thereon an electronic water pump idling detection program, wherein the electronic water pump idling detection program, when executed by a processor, implements the steps of the electronic water pump idling detection method as described above.
The beneficial effects that technical scheme that this application embodiment provided include:
when the electronic water pump is detected to be in an idling state, the electronic water pump is controlled to alternately operate according to the first rotating speed and the second rotating speed within a first preset duration, so that the electronic water pump is subjected to oscillating motion, bubbles in the electronic water pump can be discharged, the influence of the bubbles on the idling detection of the electronic water pump can be eliminated, and meanwhile, a certain flow in a whole vehicle system can be ensured, so that maintenance of a whole vehicle cooling function can be realized; if the electronic water pump is detected to be still in the idle state again after the first preset time period is over, the electronic water pump is indicated to be actually in idle operation, idle error detection caused by accidental bubbles is not caused, and idle fault early warning is further carried out. Therefore, the electronic water pump idle detection device can not only effectively avoid the influence of bubbles on the electronic water pump idle detection to improve the accuracy of idle detection, but also realize the maintenance of the whole vehicle cooling function.
Drawings
FIG. 1 is a schematic flow chart of an embodiment of an electronic water pump idle detection method of the present application;
FIG. 2 is a schematic diagram of the change of the rotational speed during the idle detection in the embodiment of the present application;
FIG. 3 is a schematic diagram showing the correspondence among the current threshold, duty cycle and air moisture content in the embodiment of the present application;
fig. 4 is a schematic diagram of a functional module of an embodiment of an electronic water pump idle detection device of the present application;
fig. 5 is a schematic hardware structure of an electronic water pump idle running detection device according to an embodiment of the present application.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will clearly and completely describe the technical solution in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
In a first aspect, an embodiment of the present application provides an electronic water pump idle detection method.
In an embodiment, referring to fig. 1, fig. 1 is a flow chart of an embodiment of an idle detection method of an electronic water pump in the present application. As shown in fig. 1, the electronic water pump idling detection method includes:
step S10: when the electronic water pump is detected to be in an idle state, controlling the electronic water pump to alternately operate according to a first rotating speed and a second rotating speed within a first preset duration, wherein the first rotating speed is larger than the second rotating speed;
the working principle of the electronic water pump is as follows: the ECU (Electronic Control Unit ) adjusts the size of the duty ratio according to feedback signals such as water temperature and the like and through PWM (Pulse Width Modulation ) so as to transmit signals to a controller in the electronic water pump, and the controller can control the motor to rotate according to the size of the duty ratio, so that the impeller rotor is driven to rotate, and further cooling liquid circulation is achieved. It can be understood that once the problems of water interruption of the water inlet source, water inlet blockage of the water pump, air in the system and the like occur in the process, the electronic water pump is caused to idle; the idle electronic water pump cannot form effective pumping pressure, so that negative pressure can be formed inside the electronic water pump, and finally the electronic water pump is damaged, so that idle detection of the electronic water pump is needed.
In this embodiment, as shown in fig. 2, when the electronic water pump detects idling, the stop is controlled to wait for N seconds, and then the electronic water pump is started again, and if idling is still detected at this time, the electronic water pump is stopped to wait for M seconds and then starts again. It should be noted that the specific value setting of the waiting time N and M may be determined according to the actual requirement, which is not limited herein. For example, N is 1 second and M is 5 seconds.
After the electronic water pump is restarted, the embodiment reduces the rotating speed of the electronic water pump from the initial high rotating speed to the first rotating speed, and operates for K seconds at the first rotating speed; then reducing to a second rotating speed, and operating at the second rotating speed for L seconds; then, the speed is increased to the first rotating speed again and continuously operates for K seconds; and then the speed is reduced to the second rotating speed and continuously operated for L seconds, so that the speed is reciprocated until the first preset time period is reached. It should be noted that the specific value setting of the running time K, L and the first preset time period may be determined according to the actual requirement, and is not limited herein, for example, K is 10 seconds, L is also 10 seconds, and the first preset time period is set to 30 minutes. Further, the initial high rotational speed is typically 5500rpm, and the specific value settings of the first rotational speed and the second rotational speed may be determined according to actual needs, as long as the first rotational speed is satisfied to be greater than the second rotational speed, for example, the first rotational speed is 4200rpm, and the second rotational speed is 2000rpm.
It should be appreciated that when the electronic water pump is operated alternately between the first rotational speed and the second rotational speed, the interior thereof will continue to perform the oscillating motion, thereby facilitating the discharge of the continuous air bubbles in the electronic water pump. Therefore, if the electronic water pump detects an idle running error due to the existence of the continuous air bubbles, the embodiment can discharge the continuous air bubbles by controlling the electronic water pump to continuously perform the cycle operation of 2000rpm and 4200rpm for 30min, so as to avoid the influence of the air bubbles on the idle running detection of the electronic water pump, and further, the embodiment can perform accurate idle running detection.
It can be understood that the electronic water pump can be stopped rotating when the traditional electronic water pump detects idling, so that the flow of the whole vehicle system is almost zero, and the temperature of parts of the cooling system is further increased rapidly, so that the cooling function of the parts in the cooling system is damaged, and the whole vehicle cannot work. In this embodiment, when the electronic water pump is detected to be in an idle state, the electronic water pump is not stopped to rotate, but is controlled to switch between 2000rpm and 4200rpm, so that normal operation of the electronic water pump is ensured, and air bubbles are discharged, and meanwhile, the flow in the whole vehicle system is ensured to be in a certain range, even if the water content in the pipeline meets the minimum cooling capacity requirement, the part cooling function of the cooling system is not damaged, and normal operation of the system is ensured.
Step S20: and after the first preset duration is over, if the electronic water pump is detected to be in the idle state again, performing idle fault early warning of the first level.
In this embodiment, if there are continuous bubbles in the electronic water pump, after the electronic water pump is controlled to alternately operate between the first rotation speed and the second rotation speed for a first preset period of time, the continuous bubbles in the electronic water pump are discharged through the oscillation motion, so that the influence of the bubbles on idle detection of the electronic water pump can be avoided; if the electronic water pump is detected to be in the idling state, the electronic water pump is actually in the idling operation, and the idling error detection caused by the accidental bubbles is not caused, so that the electronic water pump can be accurately judged to be in the idling operation and the first-level idling fault early warning can be carried out. It should be noted that, the first level in this embodiment indicates that the electronic water pump has an idle running fault, but no maintenance is required.
Therefore, the embodiment not only can effectively avoid the influence of bubbles on the idle detection of the electronic water pump so as to improve the accuracy of the idle detection, effectively reduce the reporting frequency of idle faults, but also can realize the maintenance of the cooling function of the whole vehicle.
Further, in an embodiment, before the step when the electronic water pump is detected to be in the idle state, the method further includes:
when the fact that the first real-time current corresponding to the electronic water pump at the first rotating speed is smaller than or equal to a first current threshold corresponding to the first rotating speed is detected, judging whether the second real-time current corresponding to the electronic water pump at the second rotating speed is smaller than or equal to a second current threshold corresponding to the second rotating speed or not;
if yes, judging that the electronic water pump is in an idling state;
if not, the electronic water pump is judged to be in a non-idle state.
By way of example, it should be understood that there is a mapping relationship between the rotational speed of the electronic water pump and the duty cycle; in other words, the higher the rotation speed (i.e. duty ratio), the larger the current, the larger the air water content, and the less likely the electronic water pump is to idle. Therefore, in the present embodiment, the map between the rotational speed (i.e., duty cycle) and the current threshold value at different air water contents shown in fig. 3 will be constructed. The specific value settings of the first current threshold and the second current threshold may be determined according to actual requirements, and are not limited herein. It will be appreciated that when the air water content is less than 60% (i.e. the lowest water content allowed in the water circuit system), the operation of the electronic water pump will be impaired, and therefore, the present embodiment may preferably use the current value corresponding to the first rotation speed at 60% of the air water content as the first current threshold value, and the current value corresponding to the second rotation speed at 60% of the air water content as the second current threshold value.
In this embodiment, before the idle detection of the electronic water pump is triggered, it is required to determine whether the first real-time current corresponding to the electronic water pump at the first rotation speed is less than or equal to the first current threshold, if not, it is indicated that the electronic water pump is in a non-idle state, and normal instruction operation is maintained.
If the first real-time current corresponding to the electronic water pump at the first rotating speed is smaller than or equal to the first current threshold value, the electronic water pump needs to continuously judge whether the second real-time current corresponding to the electronic water pump at the second rotating speed is smaller than or equal to the second current threshold value; if so, judging that the electronic water pump is in an idling state, and triggering the detection of the idling of the electronic water pump; if not, the electronic water pump is judged to be in a non-idle state, and normal instruction operation is maintained.
Further, in an embodiment, after the step of detecting that the electronic water pump is in the idle state again, the method further includes:
controlling the electronic water pump to alternately operate according to the first rotating speed and the second rotating speed within a second preset duration;
after the second preset duration is over, if the electronic water pump is still detected to be in the idle state, judging that the electronic water pump is in idle operation and performing idle fault early warning of a second level, wherein the level of the second level is higher than that of the first level.
In this embodiment, the specific value setting of the second preset duration may be determined according to the actual requirement, and is not limited herein, and may be the same as or different from the first preset duration, for example, the second preset duration is set to 30 minutes.
After the electronic water pump alternately operates at the first rotating speed and the second rotating speed for a first preset period, if the electronic water pump is detected to be in an idle state, the electronic water pump is controlled to alternately operate at the first rotating speed and the second rotating speed within the second preset period again, and after the second preset period is finished, whether the electronic water pump is still in the idle state is continuously judged; the method realizes the secondary verification of the idle detection result while ensuring that the whole vehicle system runs at a certain flow rate so as to ensure the accuracy of idle detection. Specifically, after the second preset duration is over, if the electronic water pump is still detected to be in the idle state, the electronic water pump is judged to be actually in idle operation, and the idle fault early warning of the second level is carried out. It should be noted that the second level is higher than the first level, and the second level not only indicates that the electronic water pump has an idling fault, but also requires maintenance treatment on the electronic water pump.
Further, in an embodiment, the method further comprises: and if the electronic water pump is detected to be in a non-idle state, judging that the electronic water pump is not in idle operation.
In this embodiment, after the alternating operation of the high and low rotational speeds for the first preset duration or the second preset duration is performed, if the electronic water pump is detected to be in the non-idle state, it is indicated that the idle operation of the electronic water pump is caused by the presence of the occasional bubbles before the electronic water pump is performed, and then the problem of false detection occurs, that is, the detection result of the idle operation of the electronic water pump is inaccurate before, at this time, it is determined again that the electronic water pump is not in the idle operation, so as to ensure that the electronic water pump can continue to operate normally, and further effectively realize the circulation of the cooling liquid.
Further, in an embodiment, after the step of ending the first preset time period or ending the second preset time period, the method further includes:
when the fact that the third real-time current corresponding to the electronic water pump at the first rotating speed is smaller than or equal to a first current threshold corresponding to the first rotating speed is detected, judging whether the fourth real-time current corresponding to the electronic water pump at the second rotating speed is smaller than or equal to a second current threshold corresponding to the second rotating speed;
if yes, judging that the electronic water pump is in an idle state again;
if not, judging that the electronic water pump is detected to be in a non-idle state;
and when the third real-time current corresponding to the first rotation speed of the electronic water pump is detected to be larger than the first current threshold corresponding to the first rotation speed, judging that the electronic water pump is detected to be in a non-idle state.
In this embodiment, whether the electronic water pump is in the idle state is determined according to the third real-time current corresponding to the first rotation speed, the fourth real-time current corresponding to the second rotation speed, and the current threshold after the electronic water pump alternately runs at the first rotation speed and the second rotation speed for a first preset time period or a second preset time period.
Since the method, flow and principle of idle state determination in this embodiment are the same, for simplicity of description, idle state determination after the first preset duration will be described below as an example: judging whether the third real-time current corresponding to the electronic water pump at the first rotation speed is smaller than or equal to a first current threshold value, if not, controlling the electronic water pump to enter a speed regulation running mode to normally control the electronic water pump, wherein the electronic water pump is in a non-idle state.
If the third real-time current corresponding to the electronic water pump at the first rotating speed is smaller than or equal to the first current threshold value, the electronic water pump needs to continuously judge whether the fourth real-time current corresponding to the electronic water pump at the second rotating speed is smaller than or equal to the second current threshold value; if yes, judging that the electronic water pump is in an idling state; if not, the electronic water pump is in a non-idle state, and the electronic water pump is controlled to enter a speed regulation running mode so as to normally control the electronic water pump.
Further, in an embodiment, the first current threshold and the second current threshold are both less than 0.3A.
In the idling self-checking process of the traditional electronic water pump, when a series of sporadic continuous bubbles pass through, the current of the electronic water pump is detected to be smaller than 0.35A, so that the rotation of the water pump impeller is stopped, and if the current is still detected to be abnormal after the electronic water pump is continuously restarted for 3 times within 15 seconds, the electronic water pump is directly judged to be idling, and a signal is sent to the ECU through a PWM signal interface, so that the idling fault of the electronic water pump is output. It will be appreciated that this idle run is due to the presence of unstable bubbles, rather than a true idle run. Therefore, the influence of unstable bubbles on idle running is not eliminated when the conventional electronic water pump performs idle running self-test, so that the problem of idle running false detection occurs.
In order to eliminate the problem of false detection of the idle running of the water pump caused by the inclusion of bubbles, the embodiment reduces the current threshold of the electronic water pump, namely adjusts the current threshold to be lower than 0.3A, thereby improving the volume of bubbles which can be contained in the electronic water pump, namely allowing a certain amount of bubbles to flow through the electronic water pump so as to avoid the influence of unstable bubbles on the idle running detection; in other words, when a certain amount of bubbles flow through the electronic water pump, the idling problem is not detected by mistake, so that the probability of false idling alarm of the electronic water pump is reduced.
In a second aspect, an embodiment of the present application further provides an electronic water pump idle rotation detection device.
In an embodiment, referring to fig. 4, fig. 4 is a schematic functional block diagram of an embodiment of an idle detection device for an electronic water pump in the present application. As shown in fig. 4, the electronic water pump idling detection device includes:
the control module is used for controlling the electronic water pump to alternately operate according to a first rotating speed and a second rotating speed within a first preset duration when the electronic water pump is detected to be in an idle state, and the first rotating speed is larger than the second rotating speed;
and the early warning module is used for carrying out first-level idling fault early warning if the electronic water pump is detected to be in an idling state again after the first preset time period is over.
Further, in an embodiment, the apparatus further comprises a detection module for:
when the fact that the first real-time current corresponding to the electronic water pump at the first rotating speed is smaller than or equal to a first current threshold corresponding to the first rotating speed is detected, judging whether the second real-time current corresponding to the electronic water pump at the second rotating speed is smaller than or equal to a second current threshold corresponding to the second rotating speed or not;
if yes, judging that the electronic water pump is in an idling state;
if not, the electronic water pump is judged to be in a non-idle state.
Further, in an embodiment, the control module is further configured to control the electronic water pump to alternately operate according to the first rotation speed and the second rotation speed within a second preset duration;
and the early warning module is also used for judging that the electronic water pump runs in an idling mode and carrying out idling fault early warning of a second level after the second preset time period is over if the electronic water pump is still detected to be in an idling state, wherein the level of the second level is higher than that of the first level.
Further, in an embodiment, the detection module is further configured to: and if the electronic water pump is detected to be in a non-idle state, judging that the electronic water pump is not in idle operation.
Further, in an embodiment, the detection module is further configured to:
when the fact that the third real-time current corresponding to the electronic water pump at the first rotating speed is smaller than or equal to a first current threshold corresponding to the first rotating speed is detected, judging whether the fourth real-time current corresponding to the electronic water pump at the second rotating speed is smaller than or equal to a second current threshold corresponding to the second rotating speed;
if yes, judging that the electronic water pump is in an idle state again;
if not, judging that the electronic water pump is detected to be in a non-idle state.
Further, in an embodiment, the first current threshold and the second current threshold are both less than 0.3A.
Further, in an embodiment, the detection module is further configured to: and when the third real-time current corresponding to the first rotation speed of the electronic water pump is detected to be larger than the first current threshold corresponding to the first rotation speed, judging that the electronic water pump is detected to be in a non-idle state.
The function implementation of each module in the electronic water pump idling detection device corresponds to each step in the embodiment of the electronic water pump idling detection method, and the function and implementation process of each module are not described in detail herein.
In a third aspect, an embodiment of the present application provides an electronic water pump idling detection apparatus, which may be an apparatus having a data processing function, such as a personal computer (personal computer, PC), a notebook computer, a server, or the like.
Referring to fig. 5, fig. 5 is a schematic hardware structure of an electronic water pump idle rotation detection device according to an embodiment of the present application. In the embodiment of the application, the electronic water pump idle running detection device may include a processor, a memory, a communication interface, and a communication bus.
The communication bus may be of any type for implementing the processor, memory, and communication interface interconnections.
The communication interfaces include input/output (I/O) interfaces, physical interfaces, logical interfaces, and the like for realizing interconnection of devices inside the electronic water pump idling detection device, and interfaces for realizing interconnection of the electronic water pump idling detection device with other devices (e.g., other computing devices or user devices). The physical interface may be an ethernet interface, a fiber optic interface, an ATM interface, etc.; the user device may be a Display, a Keyboard (Keyboard), or the like.
The memory may be various types of storage media such as random access memory (randomaccess memory, RAM), read-only memory (ROM), nonvolatile RAM (non-volatileRAM, NVRAM), flash memory, optical memory, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (electrically erasable PROM, EEPROM), and the like.
The processor may be a general-purpose processor, and the general-purpose processor may call an electronic water pump idling detection program stored in the memory, and execute the electronic water pump idling detection method provided in the embodiment of the present application. For example, the general purpose processor may be a central processing unit (central processing unit, CPU). The method executed when the electronic water pump idle detection program is called may refer to various embodiments of the electronic water pump idle detection method of the present application, and will not be described herein.
Those skilled in the art will appreciate that the hardware configuration shown in fig. 5 is not limiting of the application and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
In a fourth aspect, embodiments of the present application also provide a computer-readable storage medium.
The readable storage medium of the application stores an electronic water pump idling detection program, wherein when the electronic water pump idling detection program is executed by a processor, the steps of the electronic water pump idling detection method are realized.
The method implemented when the electronic water pump idle detection program is executed may refer to various embodiments of the electronic water pump idle detection method of the present application, which are not described herein again.
It should be noted that, the foregoing embodiment numbers are merely for describing the embodiments, and do not represent the advantages and disadvantages of the embodiments.
The terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the foregoing drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus. The terms "first," "second," and "third," etc. are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order, and are not limited to the fact that "first," "second," and "third" are not identical.
In the description of embodiments of the present application, "exemplary," "such as," or "for example," etc., are used to indicate an example, instance, or illustration. Any embodiment or design described herein as "exemplary," "such as" or "for example" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary," "such as" or "for example," etc., is intended to present related concepts in a concrete fashion.
In the description of the embodiments of the present application, unless otherwise indicated, "/" means or, for example, a/B may represent a or B; the text "and/or" is merely an association relation describing the associated object, and indicates that three relations may exist, for example, a and/or B may indicate: the three cases where a exists alone, a and B exist together, and B exists alone, and in addition, in the description of the embodiments of the present application, "plural" means two or more than two.
In some of the processes described in the embodiments of the present application, a plurality of operations or steps occurring in a particular order are included, but it should be understood that these operations or steps may be performed out of the order in which they occur in the embodiments of the present application or in parallel, the sequence numbers of the operations merely serve to distinguish between the various operations, and the sequence numbers themselves do not represent any order of execution. In addition, the processes may include more or fewer operations, and the operations or steps may be performed in sequence or in parallel, and the operations or steps may be combined.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above, comprising several instructions for causing a terminal device to perform the method described in the various embodiments of the present application.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.
Claims (10)
1. An electronic water pump idling detection method is characterized by comprising the following steps:
when the electronic water pump is detected to be in an idle state, controlling the electronic water pump to alternately operate according to a first rotating speed and a second rotating speed within a first preset duration, wherein the first rotating speed is larger than the second rotating speed;
and after the first preset duration is over, if the electronic water pump is detected to be in the idle state again, performing idle fault early warning of the first level.
2. The electronic water pump idling detection method as claimed in claim 1, further comprising, before the step of when the electronic water pump is detected to be in an idling state:
when the fact that the first real-time current corresponding to the electronic water pump at the first rotating speed is smaller than or equal to a first current threshold corresponding to the first rotating speed is detected, judging whether the second real-time current corresponding to the electronic water pump at the second rotating speed is smaller than or equal to a second current threshold corresponding to the second rotating speed or not;
if yes, judging that the electronic water pump is in an idling state;
if not, the electronic water pump is judged to be in a non-idle state.
3. The method of detecting idling of an electronic water pump as claimed in claim 1, further comprising, after the step of detecting again that the electronic water pump is in an idling state:
controlling the electronic water pump to alternately operate according to the first rotating speed and the second rotating speed within a second preset duration;
after the second preset duration is over, if the electronic water pump is still detected to be in the idle state, judging that the electronic water pump is in idle operation and performing idle fault early warning of a second level, wherein the level of the second level is higher than that of the first level.
4. A method of detecting electronic water pump idling as claimed in claim 2 or 3, further comprising:
and if the electronic water pump is detected to be in a non-idle state, judging that the electronic water pump is not in idle operation.
5. The method of detecting idling of an electronic water pump as claimed in claim 3, further comprising, after the step of ending the first preset time period or after ending the second preset time period:
when the fact that the third real-time current corresponding to the electronic water pump at the first rotating speed is smaller than or equal to a first current threshold corresponding to the first rotating speed is detected, judging whether the fourth real-time current corresponding to the electronic water pump at the second rotating speed is smaller than or equal to a second current threshold corresponding to the second rotating speed;
if yes, judging that the electronic water pump is in an idle state again;
if not, judging that the electronic water pump is detected to be in a non-idle state.
6. The electronic water pump idling detection method as claimed in claim 2 or 5, characterized in that: the first current threshold and the second current threshold are both less than 0.3A.
7. The method of detecting idling of an electronic water pump as claimed in claim 3, further comprising, after the step of ending the first preset time period or after ending the second preset time period:
and when the third real-time current corresponding to the first rotation speed of the electronic water pump is detected to be larger than the first current threshold corresponding to the first rotation speed, judging that the electronic water pump is detected to be in a non-idle state.
8. An electronic water pump idle detection device, characterized in that the electronic water pump idle detection device includes:
the control module is used for controlling the electronic water pump to alternately operate according to a first rotating speed and a second rotating speed within a first preset duration when the electronic water pump is detected to be in an idle state, and the first rotating speed is larger than the second rotating speed;
and the early warning module is used for carrying out first-level idling fault early warning if the electronic water pump is detected to be in an idling state again after the first preset time period is over.
9. An electronic water pump idling detection apparatus, characterized in that it comprises a processor, a memory, and an electronic water pump idling detection program stored on the memory and executable by the processor, wherein the electronic water pump idling detection program, when executed by the processor, implements the steps of the electronic water pump idling detection method as claimed in any one of claims 1 to 7.
10. A computer-readable storage medium, wherein an electronic water pump idling detection program is stored on the computer-readable storage medium, wherein the electronic water pump idling detection program, when executed by a processor, implements the steps of the electronic water pump idling detection method as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311538449.9A CN117386637A (en) | 2023-11-17 | 2023-11-17 | Electronic water pump idling detection method, device, equipment and readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311538449.9A CN117386637A (en) | 2023-11-17 | 2023-11-17 | Electronic water pump idling detection method, device, equipment and readable storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117386637A true CN117386637A (en) | 2024-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311538449.9A Pending CN117386637A (en) | 2023-11-17 | 2023-11-17 | Electronic water pump idling detection method, device, equipment and readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117386637A (en) |
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2023
- 2023-11-17 CN CN202311538449.9A patent/CN117386637A/en active Pending
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