CN115306535B - Control method and device of speed-regulating water pump, electronic equipment and storage medium - Google Patents
Control method and device of speed-regulating water pump, electronic equipment and storage medium Download PDFInfo
- Publication number
- CN115306535B CN115306535B CN202211246138.0A CN202211246138A CN115306535B CN 115306535 B CN115306535 B CN 115306535B CN 202211246138 A CN202211246138 A CN 202211246138A CN 115306535 B CN115306535 B CN 115306535B
- Authority
- CN
- China
- Prior art keywords
- current
- engine
- cooling water
- calibrated
- water flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/164—Controlling of coolant flow the coolant being liquid by thermostatic control by varying pump speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/33—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage controlling the temperature of the recirculated gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The application discloses a control method and device of a speed-regulating water pump, electronic equipment and a storage medium, wherein the method comprises the following steps: monitoring a current target operating condition parameter of an engine of a target vehicle and a current actual exhaust temperature of a cooler of an exhaust gas recirculation system of the target vehicle; searching the calibration exhaust temperature corresponding to the current target working condition parameter of the engine from the pre-configured calibration exhaust temperatures; judging whether the current actual exhaust temperature of a cooler of the exhaust gas recirculation system is smaller than the calibrated exhaust temperature corresponding to the current target working condition parameter; if the current actual exhaust temperature is smaller than the calibrated exhaust temperature corresponding to the current target working condition parameter, acquiring the current cooling water flow of the engine; based on the current target working condition parameters of the engine, searching the current calibration cooling water flow from all the pre-configured calibration cooling water flows; and controlling the rotating speed of a speed regulating water pump of the engine based on the comparison result of the current cooling water flow of the engine and the current calibrated cooling water flow.
Description
Technical Field
The present disclosure relates to the field of vehicle control technologies, and in particular, to a method and an apparatus for controlling a speed-adjusting water pump, an electronic device, and a storage medium.
Background
In order to cool the engine of the vehicle, a water pump is installed in the vehicle to supply cooling water to the engine, and the engine is cooled continuously.
In order to cool the engine more flexibly, an adjustable speed water pump is usually installed at present, so that the rotating speed of the adjustable speed water pump can be correspondingly controlled according to the operating condition. Currently, for an engine equipped with an exhaust gas recirculation system, since the recirculation gas needs to be cooled by a cooler of the exhaust gas recirculation system, a control method for the speed-adjustable water pump is to monitor the exhaust gas temperature of the cooler of the exhaust gas recirculation system, and when the exhaust gas temperature of the cooler of the exhaust gas recirculation system exceeds a preset limit value, the speed-adjustable water pump is controlled to operate at a high gear and a high rotation speed, and when the exhaust gas temperature is lower than the preset limit value, the speed-adjustable water pump is controlled to operate at a low gear and a low rotation speed, so that the exhaust gas temperature can be prevented from being too high.
Because the exhaust temperature of the cooler of the exhaust gas recirculation system is relatively less influenced by the flow of the cooling water, but the flow of the cooling water has relatively larger influence on the reliability of the cooler of the exhaust gas recirculation system, the existing control mode of the speed regulating water pump only considers the exhaust temperature of the cooler of the exhaust gas recirculation system, so that the cooler of the exhaust gas recirculation system is easily damaged due to insufficient water flow, and the reliability of the cooler of the exhaust gas recirculation system cannot be effectively ensured.
Disclosure of Invention
Based on the defects of the prior art, the application provides a control method and device of a speed-regulating water pump, electronic equipment and a storage medium, so as to solve the problem that the reliability of a cooler of an exhaust gas recirculation system cannot be effectively guaranteed in the prior art.
In order to achieve the above object, the present application provides the following technical solutions:
the first aspect of the application provides a control method of a speed-regulating water pump, which comprises the following steps:
monitoring a current target operating condition parameter of an engine of a target vehicle and a current actual exhaust temperature of a cooler of an exhaust gas recirculation system of the target vehicle;
searching the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine from the pre-configured calibrated exhaust temperatures;
judging whether the current actual exhaust temperature of a cooler of the exhaust gas recirculation system is smaller than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine;
if the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is less than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine, acquiring the current cooling water flow of the engine;
based on the current target working condition parameters of the engine, searching the current calibrated cooling water flow from all the pre-configured calibrated cooling water flows;
and controlling the rotating speed of a speed regulating water pump of the engine based on the comparison result of the current cooling water flow of the engine and the current calibrated cooling water flow.
Optionally, in the above control method of the speed-adjusting water pump, the controlling the rotational speed of the speed-adjusting water pump of the engine based on a comparison result of the current cooling water flow of the engine and the current calibration cooling water flow includes:
if the current cooling water flow of the engine is not smaller than the current calibrated cooling water flow, controlling a speed regulating water pump of the engine to run in a low gear;
and if the current cooling water flow of the engine is smaller than the current calibrated cooling water flow, controlling a speed regulating water pump of the engine to run in a high gear.
Optionally, in the control method of the speed-regulating water pump, the method further includes:
and if the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is not less than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine, executing the control of the speed regulating water pump of the engine to operate in a high gear.
Optionally, in the above method for controlling a speed-adjusting water pump, the current target working condition parameter of the engine includes a current rotation speed and a current load of the engine, and the searching the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine from the pre-configured calibrated exhaust temperatures includes:
and searching the calibration exhaust temperature corresponding to the current rotating speed and the current load of the engine from the pre-configured calibration exhaust temperatures.
Optionally, in the above method for controlling a speed-adjusting water pump, the searching the current calibration cooling water flow from the pre-configured calibration cooling water flows based on the current target working condition parameter of the engine includes:
searching the calibrated cooling water flow corresponding to the current rotating speed of the engine from the pre-configured calibrated cooling water flows, and determining the calibrated cooling water flow corresponding to the current rotating speed of the engine as the current calibrated cooling water flow.
The second aspect of the present application provides a control device for a speed-adjusting water pump, comprising:
a monitoring unit for monitoring a current target operating condition parameter of an engine of a target vehicle and a current actual exhaust gas temperature of a cooler of an exhaust gas recirculation system of the target vehicle;
the first searching unit is used for searching the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine from the pre-configured calibrated exhaust temperatures;
the judging unit is used for judging whether the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is smaller than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine;
the acquisition unit is used for acquiring the current cooling water flow of the engine when judging that the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is smaller than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine;
the second searching unit is used for searching the current calibration cooling water flow from all the pre-configured calibration cooling water flows based on the current target working condition parameters of the engine;
and the control unit is used for controlling the rotating speed of the speed regulating water pump of the engine based on the comparison result of the current cooling water flow of the engine and the current calibrated cooling water flow.
Optionally, in the control device of a speed-regulating water pump, the control unit includes:
the first control unit is used for controlling the speed-regulating water pump of the engine to run in a low gear when the current cooling water flow of the engine is not smaller than the current calibrated cooling water flow;
and the second control unit is used for controlling the speed regulating water pump of the engine to run in a high gear when the current cooling water flow of the engine is smaller than the current calibrated cooling water flow.
Optionally, in the control device for a speed-regulating water pump, the second control unit is further configured to:
and when judging that the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is not less than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine, controlling a speed regulating water pump of the engine to operate in a high gear.
A third aspect of the present application provides an electronic device, comprising:
a memory and a processor;
wherein the memory is used for storing programs;
the processor is used for executing the program, and the program is specifically used for realizing the control method of the speed-regulating water pump according to any one of the above.
A fourth aspect of the present application provides a computer storage medium storing a computer program which, when executed, is adapted to carry out a method of controlling a booster pump as defined in any one of the preceding claims.
The control method of the speed-regulating water pump monitors current target working condition parameters of an engine of a target vehicle and current actual exhaust temperature of a cooler of an exhaust gas recirculation system of the target vehicle. So as to find the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine from the pre-configured calibrated exhaust temperatures. And then judging whether the current actual exhaust temperature of a cooler of the exhaust gas recirculation system is smaller than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine. If the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is judged to be smaller than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine, the rotating speed can meet the exhaust temperature requirement, so that the current cooling water flow of the engine is further obtained at the moment, and the current calibrated cooling water flow is found out from all the pre-configured calibrated cooling water flows based on the current target working condition parameter of the engine. And then based on the comparison result of the current cooling water flow and the current calibration cooling water flow of the engine, the rotating speed of a speed regulating water pump of the engine is controlled so as to adjust the water flow of the water pump and meet the requirements of a cooler of an exhaust gas recirculation system, so that the requirements of the cooler of the exhaust gas recirculation system on the water flow are considered on the premise of ensuring the exhaust gas temperature, the damage to the cooler of the exhaust gas recirculation system is avoided, and the reliability of the cooler of the exhaust gas recirculation system is effectively ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings may be obtained according to the provided drawings without inventive effort to a person skilled in the art.
Fig. 1 is a flowchart of a control method of a speed-adjusting water pump according to an embodiment of the present application;
FIG. 2 is a flow chart of a method for controlling the rotational speed of a variable speed water pump of an engine according to an embodiment of the present disclosure;
FIG. 3 is a flow chart of another method for controlling a variable speed water pump according to another embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a control device of a speed-adjusting water pump according to another embodiment of the present disclosure;
fig. 5 is a schematic architecture diagram of an electronic device according to another embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In this application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The control method of the speed-regulating water pump provided by the embodiment of the application, as shown in fig. 1, comprises the following steps:
s101, monitoring current target working condition parameters of an engine of a target vehicle and current actual exhaust temperature of a cooler of an exhaust gas recirculation system of the target vehicle.
The current target working condition parameters refer to specified parameters in the working condition parameters of the current engine.
It should be noted that, when the engine is in different operation conditions, the temperature of the gas allowed to enter the engine is different, so the current target operating condition parameter of the engine of the target vehicle needs to be monitored, so that the allowed gas temperature can be determined according to the current target operating condition parameter. In order to be able to regulate the rotational speed of the speed-regulated water pump in time, it is also necessary to monitor the current actual exhaust gas temperature of the cooler of the exhaust gas recirculation system of the target vehicle.
Alternatively, in order to effectively ensure safe and reliable permission of the vehicle, the current target operating condition parameters of the engine and the current actual exhaust gas temperature of the cooler of the exhaust gas recirculation system may be monitored in real time, and subsequent steps may be performed accordingly.
S102, searching for the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine from the pre-configured calibrated exhaust temperatures.
In the embodiment of the present application, the corresponding calibration exhaust temperatures are configured in advance for different target working condition parameters, so that the calibration exhaust temperature corresponding to the current target working condition parameter of the engine can be searched from the pre-configured calibration exhaust temperatures.
Optionally, the corresponding calibration exhaust temperature can be configured according to specific values of a plurality of different target working condition parameters, and if the current target working condition parameter of the engine is exactly equal to the specific value of the target working condition parameter when configured, the calibration exhaust temperature corresponding to the current target working condition parameter of the engine can be directly found. If the target working condition parameter is equal to the specific value of the target working condition parameter, determining the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine by interpolation or the like, or determining the calibrated exhaust temperature corresponding to the previous or the next specific value as the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine according to a set strategy.
Of course, the corresponding calibration exhaust temperature can also be configured directly for different target working condition parameter ranges, and at this time, the corresponding calibration exhaust temperature of the current target working condition parameter of the engine can be determined according to the range to which the current target working condition parameter belongs.
S103, judging whether the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is smaller than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine.
If it is determined that the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is less than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine, it is indicated that the current working state of the speed-adjusting water pump is that the exhaust temperature can meet the requirement, and in order to further determine whether the water flow meets the requirement, the cooler of the exhaust gas recirculation system is avoided, so step S104 is executed at this time.
It should be noted that, since the flow rate adjustment is required to be performed under the condition of ensuring the exhaust gas temperature, if it is determined that the current actual exhaust gas temperature of the cooler of the exhaust gas recirculation system is not less than the calibrated exhaust gas temperature corresponding to the current target operating condition parameter of the engine, it is obviously required to increase the rotation speed of the speed regulating water pump. The controller can specifically run at a high gear and a high rotation speed, and at the moment, the controller runs at the high gear and the rotation speed, so that the water flow can be ensured to be enough, or the water flow is maximum, and further judgment is not needed.
S104, acquiring the current cooling water flow of the engine.
The current cooling water flow is the flow of cooling water which is actually provided for the engine by the speed-regulating water pump.
S105, based on the current target working condition parameters of the engine, the current calibration cooling water flow is found out from the pre-configured calibration cooling water flows.
It should be noted that, when the engine is under different operating conditions, the temperatures of the coolers of the exhaust gas recirculation system of the engine are also different, and the requirements for the water flow rate are also different. Therefore, in the embodiment of the application, the flow of cooling water required for not affecting the cooler of the exhaust gas recirculation system under different operation conditions of the engine is considered in advance, and corresponding calibrated cooling water flow is correspondingly configured according to different current target working condition parameters. Therefore, the current calibration cooling water flow can be found out from all the pre-configured calibration cooling water flows based on the current target working condition parameters of the engine, namely the calibration cooling water flow which is required by the influence of the cooler of the exhaust gas recirculation system is found out.
S106, controlling the rotating speed of a speed regulating water pump of the engine based on the comparison result of the current cooling water flow of the engine and the current calibration cooling water flow.
Specifically, the rotating speed of the speed-regulating water pump of the engine can be correspondingly adjusted by comparing the magnitude relation between the current cooling water flow of the engine and the current calibration cooling water flow, or the rotating speed of the speed-regulating water pump of the engine can be adjusted by comparing the specific difference value between the current cooling water flow of the engine and the current calibration cooling water flow, so that the flow of the cooling water is adjusted by adjusting the rotating speed of the speed-regulating water pump, and the enough cooling water is enabled to cool a cooler of an exhaust gas recirculation system, so that damage to the cooler is avoided.
It should be noted that, the water flow required by the cooler of the exhaust gas recirculation system is higher than the water flow required by the exhaust gas temperature reduction, and the exhaust gas temperature is less affected by the water flow, so that the control of the rotation speed of the speed-adjusting water pump in step S106 does not cause the exhaust gas temperature to be higher than the current corresponding calibration exhaust gas temperature, so that the damage to the cooler of the exhaust gas recirculation system can be avoided while the exhaust gas temperature is ensured, and the reliability of the cooler of the exhaust gas recirculation system is ensured.
Optionally, in another embodiment of the present application, a specific implementation manner of step S106, as shown in fig. 2, includes:
s201, judging whether the current cooling water flow of the engine is not smaller than the current calibration cooling water flow.
If the current cooling water flow of the engine is not less than the current calibrated cooling water flow, the water flow is satisfied, so step S202 is executed. If it is determined that the current cooling water flow of the engine is smaller than the current calibrated cooling water flow, it is indicated that the current cooling water flow is insufficient at this time, so step S203 is executed at this time.
S202, controlling a speed regulating water pump of the engine to run in a low gear.
It should be noted that, which gears of the speed-adjusting water pump are low gears and which gears are high gears may be determined in advance, so that the speed-adjusting water pump of the engine may be controlled to operate in the low gears. Of course, for the currently mainly used speed regulation comprising only two gears, there is only one low gear and one high gear per se, so no additional determination is required.
Specifically, if the speed-regulating water pump of the current engine is in the low gear, the speed-regulating water pump can be kept in the low gear continuously. Of course, if a plurality of gears exist in the low gear, the gears can be properly adjusted according to the difference value between the current cooling water flow of the engine and the current calibration cooling water flow, or the gears can be not adjusted.
S203, controlling a speed regulating water pump of the engine to run in a high gear.
At this time, the water flow is insufficient, so that the speed-regulating water pump of the engine is controlled to run in a high gear, so that the rotating speed of the speed-regulating water pump can be increased, and the flow of the speed-regulating water pump is further increased.
According to the control method of the speed-regulating water pump, the current target working condition parameters of the engine of the target vehicle and the current actual exhaust temperature of the cooler of the exhaust gas recirculation system of the target vehicle are monitored. So as to find the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine from the pre-configured calibrated exhaust temperatures. And then judging whether the current actual exhaust temperature of a cooler of the exhaust gas recirculation system is smaller than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine. If the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is judged to be smaller than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine, the rotating speed can meet the exhaust temperature requirement, so that the current cooling water flow of the engine is further obtained at the moment, and the current calibrated cooling water flow is found out from all the pre-configured calibrated cooling water flows based on the current target working condition parameter of the engine. And then based on the comparison result of the current cooling water flow and the current calibration cooling water flow of the engine, the rotating speed of a speed regulating water pump of the engine is controlled so as to adjust the water flow of the water pump and meet the requirements of a cooler of an exhaust gas recirculation system, so that the requirements of the cooler of the exhaust gas recirculation system on the water flow are considered on the premise of ensuring the exhaust gas temperature, the damage to the cooler of the exhaust gas recirculation system is avoided, and the reliability of the cooler of the exhaust gas recirculation system is effectively ensured.
Another embodiment of the present application provides another control method of a speed-adjusting water pump, as shown in fig. 3, including:
s301, monitoring current target working condition parameters of an engine of a target vehicle and current actual exhaust temperature of a cooler of an exhaust gas recirculation system of the target vehicle.
The current target working condition parameters of the engine comprise the current rotating speed and the current load of the engine. Since the current rotation speed and the current load of the engine can effectively reflect the operation condition of the engine, in the embodiment of the application, the current target working condition parameter is the current rotation speed and the current load.
It should be noted that, for the specific implementation of step S301, reference may be made to step S101 in the above method embodiment accordingly, which is not described herein again.
S302, searching out the calibration exhaust temperature corresponding to the current rotating speed and the current load of the engine from the pre-configured calibration exhaust temperatures.
It should be noted that, in the embodiment of the present application, corresponding calibration exhaust temperatures are set in advance for different speeds and loads of the engine.
Alternatively, the calibrated exhaust temperature may be set in tabular form, i.e., a MAP table is set for the calibrated exhaust temperature.
Therefore, the calibration exhaust temperature corresponding to the current rotating speed and the current load of the engine can be found out from the pre-configured calibration exhaust temperatures, namely the calibration exhaust temperature which is located in the row where the current rotating speed is located and the current load is located.
S303, judging whether the current actual exhaust temperature of a cooler of the exhaust gas recirculation system is smaller than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine.
If it is determined that the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is less than the calibrated exhaust temperature corresponding to the current target operating condition parameter of the engine, it is indicated that the rotation speed of the speed-adjusting water pump meets the exhaust temperature requirement at this time, so that the flow problem can be further considered at this time, and step S304 is executed at this time. If it is determined that the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is not less than the calibrated exhaust temperature corresponding to the current target operating condition parameter of the engine, it is indicated that the rotation speed of the speed-adjusting water pump at this time cannot meet the exhaust temperature requirement, so step S308 is executed at this time.
S304, acquiring the current cooling water flow of the engine.
S305, searching the calibrated cooling water flow corresponding to the current rotating speed of the engine from the pre-configured calibrated cooling water flows, and determining the calibrated cooling water flow corresponding to the current rotating speed of the engine as the current calibrated cooling water flow.
The heat load of the exhaust gas recirculation system of the engine is mainly related to the rotational speed of the engine, so the flow rate of cooling water required for the cooler of the exhaust gas recirculation system is mainly related to the rotational speed of the engine. In this embodiment, the corresponding calibration cooling water flows are set for different engine speeds in advance, and are not configured for different engine speeds and loads at the same time. Therefore, the current calibration cooling water flow can be obtained by the difference value according to the current rotating speed of the engine.
S306, judging whether the current cooling water flow of the engine is not smaller than the current calibration cooling water flow.
If it is determined that the current cooling water flow of the engine is not less than the current calibration cooling water flow, step S307 is executed. If the current cooling water flow of the engine is smaller than the current calibration cooling water flow, step S308 is executed.
S307, controlling the speed regulating water pump of the engine to run in a low gear.
S308, controlling a speed regulating water pump of the engine to run in a high gear.
Another embodiment of the present application provides a control device for a speed-adjusting water pump, as shown in fig. 4, including the following units:
a monitoring unit 401 for monitoring a current target operating condition parameter of an engine of the target vehicle and a current actual exhaust gas temperature of a cooler of an exhaust gas recirculation system of the target vehicle.
The first searching unit 402 is configured to search for a calibrated exhaust temperature corresponding to a current target operating condition parameter of the engine from the pre-configured calibrated exhaust temperatures.
A determining unit 403, configured to determine whether the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is less than a calibrated exhaust temperature corresponding to the current target operating condition parameter of the engine.
And the obtaining unit 404 is configured to obtain a current cooling water flow of the engine when it is determined that the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is less than the calibrated exhaust temperature corresponding to the current target operating condition parameter of the engine.
The second searching unit 405 is configured to search the current calibrated cooling water flow from the pre-configured calibrated cooling water flows based on the current target working condition parameter of the engine.
The control unit 406 is configured to control a rotation speed of the speed-adjusting water pump of the engine based on a comparison result of a current cooling water flow rate and a current calibration cooling water flow rate of the engine.
Optionally, in the control device for a speed-adjusting water pump provided in another embodiment of the present application, the control unit includes:
and the first control unit is used for controlling the speed regulating water pump of the engine to run in a low gear when the current cooling water flow of the engine is not less than the current calibrated cooling water flow.
And the second control unit is used for controlling the speed regulating water pump of the engine to run in a high gear when the current cooling water flow of the engine is smaller than the current calibrated cooling water flow.
Optionally, in the control device for a speed-adjusting water pump provided in another embodiment of the present application, the second control unit is further configured to:
and when judging that the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is not less than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine, controlling a speed regulating water pump of the engine to operate in a high gear.
Optionally, in the control device for a speed-adjusting water pump provided in another embodiment of the present application, the current target working condition parameters of the engine include a current rotation speed and a current load of the engine, and the first search unit includes:
and the first searching subunit is used for searching the calibration exhaust temperature corresponding to the current rotating speed and the current load of the engine from the pre-configured calibration exhaust temperatures.
Optionally, in the control device for a speed-adjusting water pump provided in another embodiment of the present application, the second search unit includes:
the second searching subunit is used for searching the calibrated cooling water flow corresponding to the current rotating speed of the engine from the pre-configured calibrated cooling water flows and determining the calibrated cooling water flow corresponding to the current rotating speed of the engine as the current calibrated cooling water flow.
Alternatively, the control device of the speed-regulating water pump provided by the implementation of the application can be an electronic control unit (Electronic Control Unit, ECU).
It should be noted that, for the specific working process of each unit provided in the above embodiment of the present application, reference may be made to corresponding steps in the above method embodiment accordingly, which is not described herein again.
Another embodiment of the present application provides an electronic device, as shown in fig. 5, including:
a memory 501 and a processor 502.
Wherein the memory 501 is used for storing programs.
The processor 502 is configured to execute a program stored in the memory 501, and when the program is executed, the program is specifically configured to implement the method for controlling the speed-adjusting water pump according to any one of the embodiments described above.
Another embodiment of the present application provides a computer storage medium storing a computer program that, when executed, is configured to implement a method for controlling a variable speed water pump as provided in any one of the above embodiments.
Computer storage media, including both non-transitory and non-transitory, removable and non-removable media, may be implemented in any method or technology for storage of information. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, read only compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by the computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The control method of the speed-regulating water pump is characterized by comprising the following steps of:
monitoring a current target operating condition parameter of an engine of a target vehicle and a current actual exhaust temperature of a cooler of an exhaust gas recirculation system of the target vehicle;
searching the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine from the pre-configured calibrated exhaust temperatures;
judging whether the current actual exhaust temperature of a cooler of the exhaust gas recirculation system is smaller than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine;
if the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is less than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine, acquiring the current cooling water flow of the engine;
based on the current target working condition parameters of the engine, searching the current calibrated cooling water flow from all the pre-configured calibrated cooling water flows; the current calibrated cooling water flow is used for ensuring that the cooler of the exhaust gas recirculation system keeps a normal cooling effect under the current target working condition of the engine;
if the current cooling water flow of the engine is not smaller than the current calibrated cooling water flow, controlling a speed regulating water pump of the engine to run in a low gear;
if the current cooling water flow of the engine is smaller than the current calibrated cooling water flow, controlling a speed regulating water pump of the engine to run in a high gear;
and if the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is not less than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine, executing the control of the speed regulating water pump of the engine to operate in a high gear.
2. The method of claim 1, wherein the current target operating condition parameters of the engine include a current rotational speed and a current load of the engine, and wherein the searching for the calibrated exhaust temperature corresponding to the current target operating condition parameters of the engine from the pre-configured calibrated exhaust temperatures includes:
and searching the calibration exhaust temperature corresponding to the current rotating speed and the current load of the engine from the pre-configured calibration exhaust temperatures.
3. The method of claim 2, wherein the locating the current calibrated cooling water flow from each pre-configured calibrated cooling water flow based on the current target operating condition parameters of the engine comprises:
searching the calibrated cooling water flow corresponding to the current rotating speed of the engine from the pre-configured calibrated cooling water flows, and determining the calibrated cooling water flow corresponding to the current rotating speed of the engine as the current calibrated cooling water flow.
4. A control device for a speed-regulating water pump, comprising:
a monitoring unit for monitoring a current target operating condition parameter of an engine of a target vehicle and a current actual exhaust gas temperature of a cooler of an exhaust gas recirculation system of the target vehicle;
the first searching unit is used for searching the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine from the pre-configured calibrated exhaust temperatures;
the judging unit is used for judging whether the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is smaller than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine;
the acquisition unit is used for acquiring the current cooling water flow of the engine when judging that the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is smaller than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine;
the second searching unit is used for searching the current calibration cooling water flow from all the pre-configured calibration cooling water flows based on the current target working condition parameters of the engine; the current calibrated cooling water flow is used for ensuring that the cooler of the exhaust gas recirculation system keeps a normal cooling effect under the current target working condition of the engine;
the control unit is used for controlling the rotating speed of the speed regulating water pump of the engine based on the comparison result of the current cooling water flow of the engine and the current calibration cooling water flow, so that damage to a cooler of an exhaust gas recirculation system due to insufficient current cooling water flow of the engine is avoided;
the control unit includes:
the first control unit is used for controlling the speed-regulating water pump of the engine to run in a low gear when the current cooling water flow of the engine is not smaller than the current calibrated cooling water flow;
the second control unit is used for controlling the speed-regulating water pump of the engine to run in a high gear when the current cooling water flow of the engine is smaller than the current calibrated cooling water flow;
the second control unit is further configured to: and when judging that the current actual exhaust temperature of the cooler of the exhaust gas recirculation system is not less than the calibrated exhaust temperature corresponding to the current target working condition parameter of the engine, controlling a speed regulating water pump of the engine to operate in a high gear.
5. An electronic device, comprising:
a memory and a processor;
wherein the memory is used for storing programs;
the processor is configured to execute the program, and when the program is executed, the program is specifically configured to implement the control method of the speed-adjusting water pump according to any one of claims 1 to 3.
6. A computer storage medium storing a computer program which, when executed, is adapted to carry out the method of controlling a booster pump as claimed in any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211246138.0A CN115306535B (en) | 2022-10-12 | 2022-10-12 | Control method and device of speed-regulating water pump, electronic equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211246138.0A CN115306535B (en) | 2022-10-12 | 2022-10-12 | Control method and device of speed-regulating water pump, electronic equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115306535A CN115306535A (en) | 2022-11-08 |
| CN115306535B true CN115306535B (en) | 2023-05-23 |
Family
ID=83867685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211246138.0A Active CN115306535B (en) | 2022-10-12 | 2022-10-12 | Control method and device of speed-regulating water pump, electronic equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115306535B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329177A (en) * | 2014-09-26 | 2015-02-04 | 奇瑞汽车股份有限公司 | Control device of EGR (Exhaust Gas Recirculation) temperature and control method of control device |
| CN105781812A (en) * | 2016-03-21 | 2016-07-20 | 潍柴动力股份有限公司 | EGR (exhaust gas recirculation) cooling closed-loop control system and method for cooling EGR gas |
| CN107503835A (en) * | 2017-09-26 | 2017-12-22 | 宁波吉利罗佑发动机零部件有限公司 | A kind of engine cooling and circulating system and its control method |
| CN209083392U (en) * | 2018-11-20 | 2019-07-09 | 上海汽车集团股份有限公司 | A kind of vehicle and its engine-cooling system |
| JP2020180574A (en) * | 2019-04-25 | 2020-11-05 | いすゞ自動車株式会社 | Cooling device for internal combustion engine |
| CN111734616B (en) * | 2020-07-06 | 2022-04-26 | 潍柴动力股份有限公司 | Electric control water pump control method and ECU |
| CN112483239B (en) * | 2020-12-01 | 2022-09-09 | 广西玉柴机器股份有限公司 | Method and system for controlling rotating speed of electric control water pump of internal combustion engine |
-
2022
- 2022-10-12 CN CN202211246138.0A patent/CN115306535B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN115306535A (en) | 2022-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3073204B1 (en) | Method, and device for controlling the output of the air volume and memory medium | |
| CN109681313B (en) | Method and device for controlling rotating speed of cooling fan for diesel engine | |
| JP5363046B2 (en) | Power consumption control device, cooling system, and power consumption control method | |
| US10119453B2 (en) | Systems and methods for controlling a variable speed water pump | |
| CN104460902B (en) | A kind of fan regulation and controlling method and device for optimizing power | |
| CN115306535B (en) | Control method and device of speed-regulating water pump, electronic equipment and storage medium | |
| CN114962011B (en) | Exhaust brake control method, device, apparatus, medium, and program product | |
| CN111048851A (en) | Battery temperature management system control method, device, equipment and storage medium | |
| CN113839416B (en) | Wind power maximum access proportion determining method and device based on frequency response model | |
| CN115450943A (en) | Intelligent fan speed regulating method and device for solving fuzzy temperature detection and storage medium | |
| CN105705755B (en) | The heat protection method of vehicle internal combustion engine and corresponding computer in the engine | |
| US11346563B2 (en) | Heat source system controlling device, heat source system, heat source system controlling method, and heat source system controlling program | |
| CN112277925B (en) | Vehicle speed adjusting method and device and electronic equipment | |
| CN116259785B (en) | High-power fuel cell water inlet temperature control method, device, medium and vehicle | |
| CN110764594A (en) | Temperature control method and device for hybrid hard disk | |
| CN111324156A (en) | Passive device overheating protection method and device and power electronic equipment | |
| CN208378954U (en) | A kind of lifting temperature regulator based on strip parameter list | |
| CN114856792B (en) | Fan rotating speed control method, device, equipment and readable storage medium | |
| US20230366376A1 (en) | Wind turbine plant and power control method and device thereof | |
| CN115095407B (en) | Diesel engine oil pressure control method and system | |
| CN115492673A (en) | Cooling liquid temperature adjusting method and device of engine and cooling system | |
| CN115325680A (en) | Compressor control method, device, equipment and storage medium | |
| CN110440491B (en) | Control method and device of refrigeration system | |
| CN117536719A (en) | Method and device for controlling engine, vehicle and storage medium | |
| CN116225106A (en) | Temperature controller adjusting device and method and temperature control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |