CN111425381A - Control method and device for electronic oil pump, electronic equipment and storage medium - Google Patents
Control method and device for electronic oil pump, electronic equipment and storage medium Download PDFInfo
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- CN111425381A CN111425381A CN202010526844.5A CN202010526844A CN111425381A CN 111425381 A CN111425381 A CN 111425381A CN 202010526844 A CN202010526844 A CN 202010526844A CN 111425381 A CN111425381 A CN 111425381A
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- oil pump
- electronic oil
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- load information
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/022—Stopping, starting, unloading or idling control by means of pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Control Of Transmission Device (AREA)
Abstract
The disclosure relates to a control method and apparatus of an electronic oil pump, an electronic device, and a storage medium. The control method of the electronic oil pump comprises the following steps: when a preset event is triggered, acquiring current oil pressure load information of a hydraulic system; and if the current oil pressure load information meets the preset condition, controlling the electronic oil pump to be started or closed. The essence of the embodiment of the disclosure is that the opening or closing time of the electronic oil pump is controlled in real time based on the current hydraulic system oil pressure load, so that the purpose of avoiding the adverse phenomenon that the service life of the electronic oil pump is influenced by overlarge load while the working pressure of the gearbox is ensured can be achieved.
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 an electronic oil pump, an electronic device, and a storage medium.
Background
At present, for an automatic gearbox supporting a start-stop function, a core component of the automatic gearbox is an electronic oil pump. When the start-stop function is activated, the engine can stall, and because the mechanical pump is driven by the engine to establish working oil pressure for the gearbox hydraulic system, the mechanical pump cannot establish working pressure for the gearbox hydraulic system when the engine stalls, and at the moment, the electronic oil pump needs to be activated to provide working oil pressure for the gearbox hydraulic system; when the engine is started and the mechanical pump is sufficient to provide operating pressure, the electronic oil pump needs to be shut down.
The control strategy of the good electronic oil pump not only plays an important role in the driving feeling of the whole automobile, but also can prolong the service life of the electronic oil pump and ensure the safety of customers and products. But the control strategy of the electronic oil pump is in a blank state at present.
Disclosure of Invention
In order to solve the technical problems described above or at least partially solve the technical problems, the present disclosure provides a control method, apparatus, electronic device, and storage medium for an electronic oil pump.
In a first aspect, an embodiment of the present disclosure provides a method for controlling an electronic oil pump, including:
when a preset event is triggered, acquiring current oil pressure load information of a hydraulic system;
and if the current oil pressure load information meets the preset condition, controlling the electronic oil pump to be started or closed.
Further, the preset event comprises that the vehicle is changed from a running state to a stopping state or the vehicle is changed from the stopping state to the running state;
if the preset event is that the vehicle is changed from a running state to a stop state, if the current oil pressure load information meets the preset condition, the electronic oil pump is controlled to be started or closed, and the method comprises the following steps: if the current oil pressure load information is smaller than a first preset value, controlling an electronic oil pump in the hydraulic system to be started;
if the preset event is that the vehicle is changed from a stop state to a running state, if the current oil pressure load information meets the preset condition, the electronic oil pump is controlled to be started or closed, and the method comprises the following steps: and if the current oil pressure load information is greater than a second preset value, controlling an electronic oil pump in the hydraulic system to be closed.
Further, the current oil pressure load information of the hydraulic system is obtained, including;
acquiring current operating parameters of an engine in a vehicle;
current oil pressure load information for the hydraulic system is determined based on current operating parameters of the engine.
Further, the current engine operating parameter includes the engine speed and/or the engine torque.
Further, still include:
and after the electronic oil pump is started and the engine is shut down, controlling the flow of the electronic oil pump to be within a preset flow range based on a feedback regulation mechanism.
Further, still include: the said after the electronic oil pump is opened and the engine is stalled, based on the feedback control mechanism, control the flow of the said electronic oil pump, including:
after the electronic oil pump is started and an engine is flamed out, the rotating speed of the electronic oil pump is controlled based on a feedback adjusting mechanism, so that the flow of the electronic oil pump is within a preset flow range.
Further, still include:
acquiring a current temperature, wherein the current temperature is a current environment temperature or a current gearbox oil temperature;
determining a temperature compensation value based on the current temperature;
after the electronic oil pump is started and the engine is flamed out, the rotating speed of the electronic oil pump is controlled based on a feedback adjusting mechanism, so that the flow of the electronic oil pump is within a preset flow range, and the method comprises the following steps:
and after the electronic oil pump is started and the engine is shut down, controlling the rotating speed of the electronic oil pump based on a feedback adjusting mechanism and the temperature compensation value so as to enable the flow of the electronic oil pump to be within a preset flow range.
In a second aspect, an embodiment of the present disclosure further provides a control device for an electronic oil pump, including:
the hydraulic system comprises an oil pressure load information acquisition module, a data processing module and a data processing module, wherein the oil pressure load information acquisition module is used for acquiring current oil pressure load information of the hydraulic system when a preset event is triggered;
and the electronic oil pump control module is used for controlling the electronic oil pump to be opened or closed if the current oil pressure load information meets the preset condition.
In a third aspect, an embodiment of the present disclosure further provides an electronic device, including: a processor and a memory;
the processor is configured to perform the steps of any of the methods described above by calling a program or instructions stored in the memory.
In a fourth aspect, the disclosed embodiments also provide a computer-readable storage medium storing a program or instructions for causing a computer to perform the steps of any of the above methods.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
according to the control method of the electronic oil pump, when a preset event is triggered, the current oil pressure load information of a hydraulic system is obtained; and if the current oil pressure load information meets the preset condition, controlling the electronic oil pump to be started or closed. The essence of the embodiment of the disclosure is that the opening or closing time of the electronic oil pump is controlled in real time based on the current hydraulic system oil pressure load, so that the purpose of avoiding the adverse phenomenon that the service life of the electronic oil pump is influenced by overlarge load while the working pressure of the gearbox is ensured can be achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a flowchart of a control method of an electronic oil pump according to an embodiment of the present disclosure;
fig. 2 is an input/output schematic diagram of an electronic oil pump control device and an electronic oil pump provided in an embodiment of the disclosure;
FIG. 3 is a schematic diagram of an electronic oil pump control provided by the disclosed embodiments;
FIG. 4 is a flow chart of another method of controlling an electronic oil pump according to an embodiment of the present disclosure;
fig. 5 is a block diagram of a control device of an electronic oil pump according to an embodiment of the present disclosure;
fig. 6 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present disclosure.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
Fig. 1 is a flowchart of a control method of an electronic oil pump according to an embodiment of the present disclosure. The control method of the electronic oil pump is performed by a vehicle. In particular, the execution subject of the method may be an operating system of the vehicle. The vehicle may be specifically an unmanned vehicle or a manually driven vehicle, or the like.
The method comprises the following steps:
and S110, acquiring current oil pressure load information of the hydraulic system when a preset event is triggered.
In the present disclosure, the preset event should be understood as an event that can predict the transition of the engine from the operating state to the key-off state, or an event that can predict the transition of the engine from the key-off state to the operating state.
In practice, the engine is shifted from the running state to the key-off state, meaning that the vehicle is shifted from the running state to the stopped state; and the engine is changed from the key-off state to the running state, which means that the vehicle is changed from the stopped state to the running state. It is therefore also possible to set the preset event as a transition of the vehicle from a running state to a stopped state, or a transition of the vehicle from a stopped state to a running state.
Further, when the vehicle is a manually driven vehicle, the driver usually causes the vehicle to shift from a running state to a stopped state by depressing the brake pedal. The driver causes the vehicle to transition from the stopped state to the driving state by at least one of lifting the brake pedal, stepping on the accelerator, and placing the shift lever in the reverse shift position. Therefore, whether the preset event is triggered or not can be determined by identifying the position change condition of the brake pedal, the position change condition of the accelerator and the position change condition of the shift lever.
Various methods are specifically realized for acquiring the current oil pressure load information of the hydraulic system, and illustratively, the current operation parameters of an engine in a vehicle are acquired; current oil pressure load information for the hydraulic system is determined based on current operating parameters of the engine. Optionally, the current engine operating parameter comprises engine speed and/or engine torque. Because the engine operation parameters are an important factor influencing the oil pressure load information, the accuracy of the subsequent determination of the opening or closing time of the electronic oil pump can be improved by determining the current oil pressure load information of the hydraulic system based on the current operation parameters of the engine.
In actual setting, the correspondence relationship between the engine operating parameters and the oil pressure load information of the hydraulic system may be established in advance. When the current oil pressure load information of the hydraulic system is determined based on the current operation parameters of the engine, the current oil pressure load information of the hydraulic system is determined based on the current operation parameters of the engine and the corresponding relation between the operation parameters of the engine and the oil pressure load information of the hydraulic system.
Alternatively, in practice, the engine operating parameter may be directly used as the oil pressure load information.
And S120, if the current oil pressure load information meets the preset condition, controlling the electronic oil pump to be started or closed.
If the preset event is that the vehicle is changed from a running state to a stopping state, the specific implementation manner of the step is as follows: and if the current oil pressure load information is smaller than the first preset value, controlling an electronic oil pump in the hydraulic system to be started.
If the preset event is that the vehicle is changed from a stop state to a running state, the specific implementation manner of the step is as follows: and if the current oil pressure load information is greater than a second preset value, controlling an electronic oil pump in the hydraulic system to be closed.
The first preset value and the second preset value may be equal or unequal, and the application does not limit this.
In actual setting, the first preset value and the second preset value may be determined according to the performance of the electronic oil pump.
The essence of the technical scheme is that the opening or closing time of the electronic oil pump is controlled in real time based on the oil pressure load condition of the current hydraulic system, so that the aim of ensuring the working pressure of the gearbox and avoiding the adverse phenomenon that the service life of the electronic oil pump is influenced by overlarge load of the electronic oil pump is fulfilled.
On the basis of the above technical solution, optionally, the control method further includes: and after the electronic oil pump is started and the engine is flamed out, controlling the flow of the electronic oil pump to be within a preset flow range based on a feedback regulation mechanism. Fig. 2 is an input/output schematic diagram of an electronic oil pump and an electronic oil pump control device provided in an embodiment of the present disclosure. Referring to fig. 2, specifically, the PI controller takes an actual flow rate of the electronic oil pump and feeds it back to the electronic oil pump control device. The electronic oil pump control device adjusts the flow of the electronic oil pump in real time based on the current oil pressure load information (such as the engine speed) and the actual flow of the electronic oil pump, so that the flow of the electronic oil pump is within a preset flow range. The stability of the hydraulic system of the gearbox can be guaranteed by the arrangement, and the influence on the stability of oil pressure control caused by the difference of the hysteresis, the leakage amount and the like of the hydraulic system of the gearbox is avoided. Optionally, the preset flow range is determined according to the actual demand of the vehicle, which is not limited in this application.
On the basis of the technical scheme, after the electronic oil pump is started and the engine is flamed out, the flow of the electronic oil pump is controlled based on a feedback regulation mechanism, and the electronic oil pump can be replaced by the following steps: after the electronic oil pump is started and the engine is flamed out, the rotating speed of the electronic oil pump is controlled based on a feedback adjusting mechanism, so that the flow of the electronic oil pump is within a preset flow range. For example, referring to fig. 2, the PI controller acquires an actual rotation speed of the electronic oil pump and feeds it back to the electronic oil pump control device. The electronic oil pump control device adjusts the rotating speed of the electronic oil pump in real time based on the current oil pressure load information (such as the rotating speed of an engine) and the actual rotating speed of the electronic oil pump, so that the flow of the electronic oil pump is within a preset flow range. In practice, the rotational speed is more easily monitored with respect to the flow rate. The essence of the arrangement is that the flow of the electronic oil pump is controlled by controlling the rotating speed of the electronic oil pump instead of directly controlling the flow of the electronic oil pump, so that the monitoring of the flow becomes intuitive, and the control logic can be simplified. This arrangement is particularly useful in the case of development debugging.
Further, the control method may further include: acquiring a current temperature, wherein the current temperature is a current environment temperature or a current gearbox oil temperature; determining a temperature compensation value (e.g., a temperature compensated rotational speed) based on the current temperature; after the electronic oil pump is started and the engine is flamed out, based on a feedback regulation mechanism, the rotating speed of the electronic oil pump is controlled so that the flow of the electronic oil pump is within a preset flow range, and the method comprises the following steps: after the electronic oil pump is started and the engine is flamed out, the rotating speed of the electronic oil pump is controlled based on a feedback adjusting mechanism and a temperature compensation value, so that the flow of the electronic oil pump is within a preset flow range. The arrangement can further enable the electronic oil pump and even the whole vehicle to be in a better working state.
Fig. 3 is a schematic diagram of an electronic oil pump control provided by the disclosed embodiments. Fig. 4 is a flowchart of another control method of an electronic oil pump according to an embodiment of the present disclosure. The following will further describe the control method of the electronic oil pump with reference to fig. 3-4 and the whole process of the vehicle passing through the intersection when the vehicle is decelerated after meeting a red light and the vehicle stops, and the speed of the vehicle is increased when the red light is changed into a green light. Referring to fig. 3 to 4, the control method of the electronic oil pump includes:
when a driver drives a vehicle to run, the driver sees that a red light is arranged at a front intersection, and the driver treads a brake plate to reduce the speed of the vehicle, reduce the rotating speed of an engine and gradually change from a working state to a flameout state. This process corresponds to section AB in fig. 3. At this stage, since the engine is shut down and cannot drive the mechanical pump to provide working pressure for the hydraulic system of the transmission, the electronic oil pump needs to be started to provide working pressure for the hydraulic system of the transmission. Therefore, the current oil pressure load information of the hydraulic system is obtained, and whether the current oil pressure load information is smaller than a first preset value or not is judged. And if so, controlling an electronic oil pump in the hydraulic system to be started.
As can be understood by those skilled in the art, the timing of starting the electronic oil pump is very important, and if the electronic oil pump is started too early (e.g., at point F in fig. 3), the engine may also drive the mechanical pump to continuously supply pressure due to inertia, which may increase the load of the electronic oil pump and is not favorable for the service life of the electronic oil pump. If the electronic oil pump is started too late (e.g., at point H in fig. 3), it is not able to provide a steady continuous operating pressure for the transmission. The technical scheme includes that the starting time of the electronic oil pump is determined based on the current oil pressure load information of the hydraulic system, and the effect that the adverse condition that the service life of the electronic oil pump is influenced by overlarge load can be avoided while the working pressure of the gearbox is ensured.
The period of waiting for the red light to turn green after the engine is turned off corresponds to segment BC in fig. 3. At this stage the engine stops rotating and the electronic oil pump is used to provide the working pressure for the hydraulic system of the gearbox. This is disclosed realizes the dynamic control to the electronic oil pump through feedback adjustment mechanism, can guarantee gearbox hydraulic system's stability, avoids because the delay of gearbox hydraulic system and the difference influence oil pressure control's such as leakage quantity stability.
When the red light is changed into the green light, the driver loosens the brake plate, treads the accelerator, starts the engine and gradually increases the rotating speed. This process corresponds to the CD segment in fig. 3. At this stage, the mechanical pump begins to restore the supply pressure. According to the technical scheme, the current oil pressure load information of the hydraulic system is obtained, and whether the current oil pressure load information is larger than a second preset value or not is judged. And if so, controlling an electronic oil pump in the hydraulic system to be started.
As can be appreciated by those skilled in the art, in the CD section, if the electronic oil pump is turned off too early (e.g., turned off at point M in FIG. 3), the mechanical pump cannot build up oil pressure for the hydraulic system of the transmission, and the normal operation of the transmission is eventually affected; if the electronic oil pump is turned off in a delayed manner (e.g., turned off at point N in fig. 3), the mechanical pump builds up oil pressure at this time, which may increase the load of the electronic oil pump instantaneously, seriously affect the service life of the electronic oil pump, and even damage the electronic oil pump. The technical scheme includes that the closing time of the electronic oil pump is determined based on the current oil pressure load information of the hydraulic system, and the effect that the adverse condition that the service life of the electronic oil pump is influenced by overlarge load can be avoided while the working pressure of the gearbox is ensured.
Fig. 5 is a block diagram of a control device of an electronic oil pump according to an embodiment of the present disclosure. Referring to fig. 5, the control apparatus of the electronic oil pump includes:
the oil pressure load information acquiring module 210 is configured to acquire current oil pressure load information of the hydraulic system when a preset event is triggered;
and the electronic oil pump control module 220 is used for controlling the electronic oil pump to be started or closed if the current oil pressure load information meets the preset condition.
Further, the preset event comprises that the vehicle is changed from a running state to a stopping state or the vehicle is changed from the stopping state to the running state;
if the preset event is that the vehicle is changed from a running state to a stop state, the electronic oil pump control module 220 is used for controlling an electronic oil pump in the hydraulic system to be started if the current oil pressure load information is smaller than a first preset value;
if the preset event is that the vehicle is changed from a stop state to a running state, the electronic oil pump control module 220 is configured to control the electronic oil pump in the hydraulic system to be turned off if the current oil pressure load information is greater than a second preset value.
Further, the oil pressure load information obtaining module 210 is configured to obtain current operating parameters of an engine in the vehicle; current oil pressure load information for the hydraulic system is determined based on current operating parameters of the engine.
Further, the current engine operating parameter includes the engine speed and/or the engine torque.
Further, the electronic oil pump control module 220 is further configured to control the flow rate of the electronic oil pump within a preset flow rate range based on a feedback regulation mechanism after the electronic oil pump is turned on and the engine is turned off.
Further, the electronic oil pump control module 220 is further configured to control the rotation speed of the electronic oil pump based on a feedback regulation mechanism after the electronic oil pump is turned on and the engine is turned off, so that the flow rate of the electronic oil pump is within a preset flow rate range.
Furthermore, the control device of the electronic oil pump also comprises a temperature acquisition module and a temperature compensation value determination module;
the temperature acquisition module is used for acquiring the current temperature, wherein the current temperature is the current environment temperature or the current gearbox oil temperature;
the temperature compensation value determining module is used for determining a temperature compensation value based on the current temperature;
the electronic oil pump control module 220 is further configured to control the rotation speed of the electronic oil pump based on a feedback regulation mechanism and the temperature compensation value after the electronic oil pump is turned on and the engine is turned off, so that the flow rate of the electronic oil pump is within a preset flow rate range.
The apparatus disclosed in the above embodiments can implement the processes of the methods disclosed in the above method embodiments, and has the same or corresponding beneficial effects, and for avoiding repetition, the details are not described herein again.
Fig. 6 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present disclosure, as shown in fig. 6, the electronic device may include a mobile phone and a PAD intelligent terminal, and the electronic device includes:
one or more processors 301, one processor 301 being exemplified in fig. 6;
a memory 302;
the electronic device may further include: an input device 303 and an output device 304.
The processor 301, the memory 302, the input device 303 and the output device 304 in the electronic apparatus may be connected by a bus or other means, and fig. 6 illustrates an example of connection by a bus.
The memory 302, which is a non-transitory computer-readable storage medium, may be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the control method of the electronic oil pump of the application program in the embodiment of the present disclosure (for example, the oil pressure load information obtaining module 210 and the electronic oil pump control module 220 shown in fig. 5). The processor 301 executes various functional applications of the server and data processing by running software programs, instructions and modules stored in the memory 302, namely, implements the control method of the electronic oil pump of the above-described method embodiment.
The memory 302 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the electronic device, and the like. Further, the memory 302 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 302 optionally includes memory located remotely from processor 301, which may be connected to a terminal device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 303 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the electronic apparatus. The output means 304 may comprise a display device such as a display screen.
The disclosed embodiments also provide an electronic oil pump control method including:
when a preset event is triggered, acquiring current oil pressure load information of a hydraulic system;
and if the current oil pressure load information meets the preset condition, controlling the electronic oil pump to be started or closed.
Optionally, the computer executable instructions, when executed by the computer processor, may also be used to implement the technical solution of the control method of the electronic oil pump provided in any embodiment of the present disclosure.
Based on the understanding that the technical solutions of the present disclosure can be embodied in the form of software products, which can be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a flash Memory (F L ASH), a hard disk or an optical disk of a computer, and the like, and include instructions for enabling a computer device (which may be a personal computer, a server, or a network device, and the like) to execute the methods described in the embodiments of the present disclosure.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. 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 disclosure. Thus, the present disclosure 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 (10)
1. A method of controlling an electronic oil pump, comprising:
when a preset event is triggered, acquiring current oil pressure load information of a hydraulic system;
and if the current oil pressure load information meets the preset condition, controlling the electronic oil pump to be started or closed.
2. The control method according to claim 1,
the preset event comprises the fact that the vehicle is changed from a running state to a stopping state, or the vehicle is changed from the stopping state to the running state;
if the preset event is that the vehicle is changed from a running state to a stop state, if the current oil pressure load information meets the preset condition, the electronic oil pump is controlled to be started or closed, and the method comprises the following steps: if the current oil pressure load information is smaller than a first preset value, controlling an electronic oil pump in the hydraulic system to be started;
if the preset event is that the vehicle is changed from a stop state to a running state, if the current oil pressure load information meets the preset condition, the electronic oil pump is controlled to be started or closed, and the method comprises the following steps: and if the current oil pressure load information is greater than a second preset value, controlling an electronic oil pump in the hydraulic system to be closed.
3. The control method according to claim 1, wherein the obtaining of current oil pressure load information of the hydraulic system includes;
acquiring current operating parameters of an engine in a vehicle;
and determining current oil pressure load information of the hydraulic system based on the current operation parameters of the engine.
4. The control method according to claim 3,
the current engine operating parameter includes the engine speed and/or the engine torque.
5. The control method according to claim 1, characterized by further comprising:
and after the electronic oil pump is started and the engine is shut down, controlling the flow of the electronic oil pump to be within a preset flow range based on a feedback regulation mechanism.
6. The control method according to claim 5, characterized by further comprising: the said after the electronic oil pump is opened and the engine is stalled, based on the feedback control mechanism, control the flow of the said electronic oil pump, including:
after the electronic oil pump is started and an engine is flamed out, the rotating speed of the electronic oil pump is controlled based on a feedback adjusting mechanism, so that the flow of the electronic oil pump is within a preset flow range.
7. The control method according to claim 6, characterized by further comprising:
acquiring a current temperature, wherein the current temperature is a current environment temperature or a current gearbox oil temperature;
determining a temperature compensation value based on the current temperature;
after the electronic oil pump is started and the engine is flamed out, the rotating speed of the electronic oil pump is controlled based on a feedback adjusting mechanism, so that the flow of the electronic oil pump is within a preset flow range, and the method comprises the following steps:
and after the electronic oil pump is started and the engine is shut down, controlling the rotating speed of the electronic oil pump based on a feedback adjusting mechanism and the temperature compensation value so as to enable the flow of the electronic oil pump to be within a preset flow range.
8. A control device of an electronic oil pump, characterized by comprising:
the hydraulic system comprises an oil pressure load information acquisition module, a data processing module and a data processing module, wherein the oil pressure load information acquisition module is used for acquiring current oil pressure load information of the hydraulic system when a preset event is triggered;
and the electronic oil pump control module is used for controlling the electronic oil pump to be opened or closed if the current oil pressure load information meets the preset condition.
9. An electronic device, comprising: a processor and a memory;
the processor is adapted to perform the steps of the method of any one of claims 1 to 7 by calling a program or instructions stored in the memory.
10. A computer-readable storage medium, characterized in that it stores a program or instructions for causing a computer to carry out the steps of the method according to any one of claims 1 to 7.
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| CN202010526844.5A CN111425381B (en) | 2020-06-11 | 2020-06-11 | Control method and device for electronic oil pump, electronic equipment and storage medium |
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| CN202010526844.5A CN111425381B (en) | 2020-06-11 | 2020-06-11 | Control method and device for electronic oil pump, electronic equipment and storage medium |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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