Electric control oil pump assembly and control method, device and system of electric control oil pump assembly

Abstract

The invention relates to an electric control oil pump assembly and an electric control oil pump assembly control method, device and system.The electric control oil pump assembly comprises an oil pump arranged on the lower surface of an engine cylinder body; and the electromagnetic valve is communicated with a main oil duct of the engine cylinder body, is communicated with a feedback oil duct in the oil pump and is used for controlling opening and closing of the feedback oil duct according to the received control signal and controlling connection and disconnection of the main oil duct and a first oil inlet of the oil pump. By the adoption of the electronic control oil pump assembly, the energy utilization efficiency of the oil pump can be improved on the basis that the cooling and lubricating requirements are met.

Description

Technical Field

[0001] The present application relates to the technical field of electronically controlled oil pumps, and in particular to an electronically controlled oil pump assembly, and an electronically controlled oil pump assembly control method, device, and system. Background Art

[0002] The oil pump is a key component in the engine's lubrication system. In related technologies, a gear transmission assembly transmits mechanical energy from the engine's crankshaft or camshaft to the oil pump, driving it to pump oil from the oil pan, pressurize it, and then deliver it to the components requiring lubrication.

[0003] However, the oil pump in the related art has the problem of low energy utilization efficiency. Summary of the Invention

[0004] Based on this, it is necessary to address the problems in the prior art and provide an electronically controlled oil pump assembly, an electronically controlled oil pump assembly control method, a device and a system that can improve energy utilization efficiency.

[0005] In a first aspect, the present application provides an electronically controlled oil pump assembly, which adopts the following technical solution:

[0006] An electronically controlled oil pump assembly, comprising:

[0007] An oil pump is arranged on the lower surface of the engine cylinder block;

[0008] The solenoid valve is connected to the main oil channel of the engine cylinder block and the feedback oil channel in the oil pump. It is used to control the opening and closing of the feedback oil channel according to the received control signal, and to control the connection and disconnection between the main oil channel and the first oil inlet of the oil pump.

[0009] In one embodiment, the oil pump includes:

[0010] The plunger cavity is connected to the feedback oil passage and is respectively connected to the first oil inlet and the first oil outlet, and the first oil outlet is connected to the main oil passage;

[0011] The plunger valve is movably arranged in the plunger cavity.

[0012] In one embodiment, the plunger valve comprises:

[0013] an elastic portion, wherein a first end of the elastic portion is connected to an end of the plunger cavity away from the feedback oil passage, and a second end of the elastic portion is connected to the first end of the channel portion;

[0014] The channel portion is used to connect the first oil inlet and the first oil outlet, or disconnect the first oil inlet and the first oil outlet, driven by the elastic portion.

[0015] In one embodiment, the solenoid valve includes: a second oil inlet, a second oil outlet, and a third oil outlet, wherein:

[0016] The second oil inlet is connected to the main oil channel;

[0017] The second oil outlet is communicated with the feedback oil passage, and the third oil outlet is communicated with the oil pan.

[0018] In a second aspect, the present application provides a method for controlling an electronically controlled oil pump assembly, for controlling the electronically controlled oil pump assembly as described in the first aspect, the method comprising the following steps:

[0019] Obtain the oil temperature and status information corresponding to the main oil channel of the engine;

[0020] When the oil temperature meets the preset temperature condition, a first control signal is generated according to the state information, and the first control signal is used to control the opening of the solenoid valve.

[0021] In one embodiment, the state information includes speed information, load information, and pressure information; generating a first control signal based on the state information includes:

[0022] Determine the target pressure corresponding to the main oil channel based on the preset mapping relationship, speed information and load information;

[0023] A first control signal is determined according to the target pressure and the pressure information.

[0024] In one embodiment, the method further comprises:

[0025] receiving a brake signal;

[0026] A second control signal is generated according to the braking signal, and the second control signal is used to control the solenoid valve to be turned off.

[0027] In one embodiment, the method further comprises:

[0028] When the oil temperature does not meet the temperature condition, a third control signal is generated, and the third control signal is used to control the solenoid valve to be turned off.

[0029] In a third aspect, the present application provides an electronically controlled oil pump assembly control device for controlling the electronically controlled oil pump assembly according to the first aspect, the device comprising:

[0030] An information acquisition module is used to obtain the oil temperature and status information corresponding to the main oil channel of the engine;

[0031] The signal generating module is used to generate a first control signal according to the state information when the oil temperature meets the preset temperature condition, and the first control signal is used to control the opening of the solenoid valve.

[0032] In a fourth aspect, the present application provides an electronically controlled oil pump assembly control system, comprising the electronically controlled oil pump assembly and a controller as provided in the first aspect, the controller being configured to execute the electronically controlled oil pump assembly control method as provided in the second aspect.

[0033] The above-mentioned electronically controlled oil pump assembly, electronically controlled oil pump assembly control method, device and system, on one hand, provide an electronically controlled oil pump assembly including: an oil pump, arranged on the lower surface of the engine cylinder block; a solenoid valve, connected to the main oil channel of the engine cylinder block and to the feedback oil channel in the oil pump, for controlling the opening and closing of the feedback oil channel according to the received control signal, and controlling the connection and disconnection of the main oil channel and the first oil inlet of the oil pump. In this way, when the solenoid valve is in the closed state under the control of the control signal, the main oil channel of the engine and the feedback oil channel of the oil pump are not connected to each other; when the solenoid valve is in the open state under the control of the control signal, the feedback oil channel of the oil pump is opened, and the main oil channel is connected to the feedback oil channel, and then connected to the first oil inlet of the oil pump, so that the oil in the main oil channel can flow into the first oil inlet through the feedback oil channel, thereby realizing the control of the oil pump outlet flow and outlet back pressure, avoiding the problem of directly using the engine rotation to drive the oil pump, resulting in the oil pump pumping out more oil than the engine lubrication and cooling requirements, thereby effectively reducing the friction power consumption of the oil pump, and improving the energy utilization efficiency of the oil pump on the basis of ensuring cooling and lubrication requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG1 is a schematic structural diagram of an electronically controlled oil pump assembly in one embodiment;

[0035] FIG2 is a schematic cross-sectional view of an electronically controlled oil pump assembly in one embodiment;

[0036] FIG3 is a schematic structural diagram of a solenoid valve in one embodiment;

[0037] FIG4 is a schematic flow chart of a method for controlling an electronically controlled oil pump assembly in one embodiment;

[0038] FIG5 is a structural block diagram of an electronically controlled oil pump assembly control device in one embodiment;

[0039] FIG6 is a diagram showing the internal structure of a computer device according to one embodiment;

[0040] Description of the accompanying drawings:

[0041] 1. Oil pump; 11. First oil inlet; 12. First oil outlet; 13. Plunger valve; 2. Solenoid valve; 21. Second oil inlet; 22. Second oil outlet; 23. Third oil outlet. DETAILED DESCRIPTION

[0042] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0043] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0044] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0045] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0046] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0047] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0048] The embodiments of the present application are further described in detail below with reference to Figures 1-6.

[0049] Figure 1 shows a schematic diagram of the structure of an electronically controlled oil pump assembly in one embodiment of the present application; Figure 2 shows a schematic diagram of the cross-sectional structure of the electronically controlled oil pump assembly in one embodiment of the present application. Referring to Figures 1 and 2, the electronically controlled oil pump assembly provided in one embodiment of the present application includes: an oil pump 1, disposed on the lower surface of an engine cylinder; a solenoid valve 2, communicating with the main oil passage of the engine cylinder and with the feedback oil passage in the oil pump 1, for controlling the opening and closing of the feedback oil passage based on a received control signal, and controlling the connection between the main oil passage and the first oil inlet 11 of the oil pump 1.

[0050] The oil pump 1 includes a first oil inlet 11 and a first oil outlet 12. The first oil inlet 11 is connected to the oil pan and is used to draw oil from the oil pan into the pump. The first oil outlet 12 is connected to the engine lubrication system and is used to output the pressurized oil in the pump to various areas of the engine that require lubrication. The oil pump 1 also includes a gear assembly consisting of two intermeshing gears. The rotation of the gears creates a pressure differential, pushing the oil into the first oil inlet 11, where it is pressurized and discharged through the first oil outlet 12.

[0051] In the above-mentioned electronically controlled oil pump assembly, when the solenoid valve 2 is in the closed state under the control of the control signal, the main oil channel of the engine and the feedback oil channel of the oil pump 1 are not connected to each other; when the solenoid valve 2 is in the open state under the control of the control signal, the feedback oil channel of the oil pump 1 is opened, and the main oil channel is connected to the feedback oil channel, and then connected to the first oil inlet 11 of the oil pump 1, so that the oil in the main oil channel can flow into the first oil inlet 11 through the feedback oil channel, thereby realizing the control of the outlet flow and outlet back pressure of the oil pump 1, avoiding the problem of directly using the engine rotation to drive the oil pump 1, resulting in the oil pump 1 pumping out more oil than the engine lubrication and cooling requirements, thereby effectively reducing the friction power consumption of the oil pump 1, and improving the energy utilization efficiency of the oil pump 1 on the basis of ensuring cooling and lubrication requirements.

[0052] In an exemplary embodiment, referring to Figures 1 and 2 , an oil pump 1 is provided that includes: a plunger chamber that is connected to a feedback oil passage and is respectively connected to a first oil inlet 11 and a first oil outlet 12 of the oil pump 1 ; and a plunger valve 13 that is movably disposed in the plunger chamber.

[0053] When oil in the feedback oil passage of oil pump 1 flows into the plunger chamber, the oil exerts pressure on plunger valve 13 in the plunger chamber, pushing plunger valve 13 to move along the extension direction of the plunger chamber. After plunger valve 13 moves, first oil inlet 11, the plunger chamber, and first oil outlet 12 of oil pump 1 are connected. Because the pressure at first oil outlet 12 is greater than that at first oil inlet 11, oil flowing out of first oil outlet 12 flows through the plunger chamber and first oil inlet 11, returning to oil pump 1. This controls the outlet flow rate and outlet back pressure of oil pump 1.

[0054] In one possible embodiment, the plunger valve 13 in the oil pump 1 includes: an elastic portion, a first end of the elastic portion is connected to an end of the plunger cavity away from the feedback oil channel, and a second end of the elastic portion is connected to a first end of a channel portion; the channel portion is used to connect the first oil inlet 11 and the first oil outlet 12, or disconnect the first oil inlet 11 and the first oil outlet 12 under the drive of the elastic portion.

[0055] The outer surface of the elastic portion is tightly matched with the plunger cavity, thereby ensuring that the plunger valve 13 as a whole can move smoothly while preventing oil leakage.

[0056] Exemplarily, the channel portion may be a cylindrical structure having a diameter smaller than that of the elastic portion, and the length of the channel portion is greater than or equal to the distance between the first oil inlet 11 and the first oil outlet 12. When the channel portion moves between the first oil inlet 11 and the first oil outlet, a channel is formed between the first oil inlet 11 and the first oil outlet, for the engine oil in the first oil outlet 12 to flow from the channel to the first oil inlet 11. As another example, the channel portion may be a structure having a channel hole, and the length of the channel hole along the extension direction of the plunger cavity is greater than or equal to the distance between the first oil inlet 11 and the first oil outlet 12. When the channel portion moves between the first oil inlet 11 and the first oil outlet, the engine oil can flow from the first oil outlet 12 to the first oil inlet 11 through the channel hole.

[0057] Figure 3 shows a schematic diagram of the structure of the solenoid valve 2 in one embodiment of the present application. As shown in Figure 3, the solenoid valve 2 provided in one embodiment of the present application includes: a second oil inlet 21, a second oil outlet 22, and a third oil outlet 23. The second oil inlet 21 is connected to the main oil channel; the second oil outlet 22 is connected to the feedback oil channel; and the third oil outlet 23 is connected to the oil pan.

[0058] In one possible embodiment, the solenoid valve 2 is installed on the engine cylinder block, the second oil inlet 21 is connected to the second oil outlet 22, the oil in the main oil channel flows into the feedback oil channel in the oil pump 1 through the solenoid valve 2, and then flows into the plunger chamber, pushing the plunger valve 13 in the plunger chamber to move, the first oil inlet 11 and the first oil outlet 12 are connected, and the oil flows back to the oil pan through the first oil inlet 11, thereby realizing the control of the outlet flow and outlet back pressure of the oil pump 1.

[0059] In a possible implementation, the second oil inlet 21 is connected to the third oil outlet 23, the main oil channel is connected to the oil pan, and the solenoid valve 2 serves as a pressure relief valve of the main oil channel to control the upper limit of the oil pressure in the main oil channel.

[0060] In an exemplary embodiment, in the initial state of the provided electronically controlled oil pump assembly, the plunger valve 13 in the plunger chamber closes the first oil inlet 11 and the first oil outlet 12 of the oil pump 1. When the flow rate of oil pumped out by the oil pump 1 is greater than the flow rate actually required by the engine, the solenoid valve 2 receives a control signal and opens the second oil inlet 21 and the second oil outlet 22. The second oil inlet 21 and the second oil outlet 22 are connected, and the oil in the main oil channel flows through the solenoid valve 2 into the feedback oil channel in the oil pump 1 and then into the plunger chamber, generating pressure on the plunger valve 13, pushing the plunger valve 13 to move along the extension direction of the plunger chamber. The first oil inlet 11, the plunger chamber, and the first oil outlet 12 are connected, allowing the oil to flow back to the first oil inlet 11, thereby achieving control of the displacement and back pressure of the oil pump 1. When the pressure in the main oil channel is greater than the preset pressure threshold, the solenoid valve 2 receives a control signal, opens the second oil inlet 21 and the third oil outlet 23, and the second oil inlet 21 and the third oil outlet 23 are connected. The oil in the main oil channel flows into the oil pan through the solenoid valve 2, thereby realizing the control of the upper limit value of the oil pressure in the main oil channel.

[0061] In an exemplary embodiment, as shown in FIG4 , a method for controlling an electronically controlled oil pump assembly is provided, for controlling the electronically controlled oil pump assembly in the above embodiment, the method comprising:

[0062] Step 402: Obtain the oil temperature and status information corresponding to the main oil channel of the engine.

[0063] Step 404 : When the oil temperature meets the preset temperature condition, a first control signal is generated according to the state information. The first control signal is used to control the opening of the solenoid valve 2 .

[0064] In one possible implementation, the status information includes speed information, load information, and pressure information. Step 404 may further include: determining a target pressure corresponding to the main oil channel based on a preset mapping relationship, speed information, and load information; and determining a first control signal based on the target pressure and pressure information.

[0065] In one possible implementation, the method further includes: receiving a braking signal; and generating a second control signal based on the braking signal, wherein the second control signal is used to control the closing of solenoid valve 2. Thus, when the engine is in a braking condition, the controller executing the electronically controlled oil pump assembly control method interrupts the process of generating the first control signal and directly outputs the second control signal to close solenoid valve 2, placing oil pump 1 in a full displacement state and preventing engine overheating during braking.

[0066] In one possible embodiment, the method further includes: generating a third control signal when the oil temperature does not meet the temperature condition, the third control signal being used to control the solenoid valve 2 to close. The oil temperature not meeting the temperature condition indicates that the oil temperature is too low or too high. When the oil temperature is too low, the controller executing the electronically controlled oil pump assembly control method interrupts the process of generating the first control signal and directly outputs the third control signal to close the solenoid valve 2, placing the oil pump 1 in a full-displacement state. The oil pressure and displacement discharged by the oil pump 1 are maximum values ​​at various engine speeds, thereby preventing high oil viscosity due to low temperature, reduced lubrication effect, and oil pressure fluctuations from affecting the accuracy of the first control signal. When the oil temperature is too high, the controller directly outputs the third control signal to close the solenoid valve 2, placing the oil pump 1 in a full-displacement state, thereby preventing low oil viscosity from affecting the oil pressure and, in turn, the accuracy of the first control signal.

[0067] It should be understood that, although the steps in the flowcharts of the above embodiments are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the flowcharts of the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily to be performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0068] Based on the same inventive concept, embodiments of the present application also provide an electronically controlled oil pump assembly control device for implementing the aforementioned electronically controlled oil pump assembly control method. The solution provided by this device is similar to the solution described in the aforementioned method. Therefore, the specific limitations of one or more electronically controlled oil pump assembly control device embodiments provided below can be found in the aforementioned limitations of the electronically controlled oil pump assembly control method and will not be further elaborated here.

[0069] In an exemplary embodiment, as shown in FIG5 , a control device for an electronically controlled oil pump assembly is provided, comprising: an information acquisition module 502 and a signal generation module 504 , wherein:

[0070] An information acquisition module is used to obtain the oil temperature and status information corresponding to the main oil channel of the engine;

[0071] The signal generating module is used to generate a first control signal according to the state information when the oil temperature meets the preset temperature condition. The first control signal is used to control the opening of the solenoid valve 2.

[0072] In one embodiment, the status information includes speed information, load information and pressure information; the signal generation module 504 is further used to determine the target pressure corresponding to the main oil channel based on a preset mapping relationship, speed information and load information; and determine the first control signal based on the target pressure and pressure information.

[0073] In one embodiment, the signal generating module 504 is further configured to receive a braking signal; and generate a second control signal according to the braking signal, wherein the second control signal is configured to control the electromagnetic valve 2 to be turned off.

[0074] In one embodiment, the signal generating module 504 is further configured to generate a third control signal when the engine oil temperature does not meet the temperature condition, and the third control signal is configured to control the solenoid valve 2 to be turned off.

[0075] Each module in the electronically controlled oil pump assembly control device described above may be implemented in whole or in part through software, hardware, or a combination thereof. Each module may be embedded in or independent of a processor within a computer device in the form of hardware, or may be stored in a computer device memory in the form of software, allowing the processor to call and execute the corresponding operations of each module.

[0076] In an exemplary embodiment, a computer device is provided, which may be a server. Its internal structure diagram may be as shown in FIG6 . The computer device includes a processor, memory, an input / output (I / O) interface, and a communication interface. The processor, memory, and I / O interface are connected via a system bus, and the communication interface is connected to the system bus via the I / O interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The database of the computer device is used to store engine oil temperature and status information. The I / O interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals via a network connection. When executed by the processor, the computer program implements a method for controlling an electronically controlled oil pump assembly.

[0077] Those skilled in the art will understand that the structure shown in FIG6 is merely a block diagram of a portion of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0078] In one embodiment, a computer device is further provided, including a memory and a processor. The memory stores a computer program, and the processor implements the steps in the above method embodiments when executing the computer program.

[0079] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0080] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0081] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the above-mentioned embodiments. In particular, any reference to memory, database, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processors involved in the various embodiments provided herein may be, but are not limited to, general-purpose processors, central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), data processing logic devices based on quantum computing, and the like.

[0082] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. An electronically controlled oil pump assembly, characterized in that: The electronically controlled oil pump assembly comprises: An oil pump is arranged on the lower surface of the engine cylinder block; The solenoid valve is connected to the main oil channel of the engine cylinder block and to the feedback oil channel in the oil pump, and is used to control the opening and closing of the feedback oil channel according to the received control signal, and to control the connection and disconnection between the main oil channel and the first oil inlet of the oil pump.

2. The electronically controlled oil pump assembly according to claim 1, characterized in that: The oil pump comprises: A plunger cavity, connected to the feedback oil passage, and respectively connected to the first oil inlet and the first oil outlet, wherein the first oil outlet is connected to the main oil passage; The plunger valve is movably arranged in the plunger cavity.

3. The electronically controlled oil pump assembly according to claim 2, characterized in that: The plunger valve comprises: an elastic portion, wherein a first end of the elastic portion is connected to an end of the plunger cavity away from the feedback oil passage, and a second end of the elastic portion is connected to a first end of the channel portion; The channel portion is used to connect the first oil inlet and the first oil outlet, or disconnect the first oil inlet and the first oil outlet, driven by the elastic portion.

4. The electronically controlled oil pump assembly according to claim 1, characterized in that: The solenoid valve comprises: a second oil inlet, a second oil outlet and a third oil outlet, wherein: The second oil inlet is in communication with the main oil passage; The second oil outlet is communicated with the feedback oil passage, and the third oil outlet is communicated with the oil pan.

5. A method for controlling an electronically controlled oil pump assembly, characterized in that: The method is used to control the electronically controlled oil pump assembly according to any one of claims 1 to 4, and the method comprises: Obtain the oil temperature and status information corresponding to the main oil channel of the engine; When the engine oil temperature meets a preset temperature condition, a first control signal is generated according to the state information, and the first control signal is used to control the opening of the solenoid valve.

6. The method according to claim 5, characterized in that The state information includes speed information, load information and pressure information; and generating a first control signal according to the state information includes: Determining a target pressure corresponding to the main oil channel according to a preset mapping relationship, the speed information and the load information; The first control signal is determined according to the target pressure and the pressure information.

7. The method according to claim 5, characterized in that The method further comprises: receiving a brake signal; A second control signal is generated according to the brake signal, and the second control signal is used to control the solenoid valve to be turned off.

8. The method according to claim 5, characterized in that The method further comprises: When the engine oil temperature does not meet the temperature condition, a third control signal is generated, and the third control signal is used to control the solenoid valve to be turned off.

9. An electronically controlled oil pump assembly control device, characterized in that: The device is used to control the electronically controlled oil pump assembly according to any one of claims 1 to 4, and the device comprises: An information acquisition module, used to obtain the oil temperature and status information corresponding to the main oil channel of the engine; The signal generating module is used to generate a first control signal according to the state information when the temperature of the engine oil meets a preset temperature condition, wherein the first control signal is used to control the opening of the solenoid valve.

10. An electronically controlled oil pump assembly control system, characterized in that: It comprises an electronically controlled oil pump assembly and a controller as described in any one of claims 1-4, wherein the controller is used to execute the electronically controlled oil pump assembly control method as described in any one of claims 5-8.

Images