Oil pump, oil pump control method and device, fuel system and vehicle

Abstract

The invention relates to an oil pump, an oil pump control method and device, a fuel system and a vehicle. The oil pump has the functions of active pressure relief and reverse oil suction. The method comprises the steps that in response to a first mode switching instruction, an oil pump is controlled to stop working, the first mode switching instruction is used for indicating that a driving mode is switched to a pure electric mode from a fuel oil mode, and after waiting for a preset duration, the remaining electric quantity of a battery is obtained; and under the condition that the remaining electric quantity of the battery is larger than or equal to a preset electric quantity threshold value, the oil pump is controlled to execute reverse rotation operation according to a preset reverse rotation duration, and fuel oil in the fuel oil pipeline is sucked back to the oil storage barrel till the fuel oil amount in the fuel oil pipeline is smaller than a preset fuel oil amount lower limit value. By the adoption of the method, fuel oil in the fuel oil pipeline can be sucked back to the oil storage barrel, even if the fuel oil pipeline is broken, large-area fuel oil leakage is avoided, and the risk of fire disasters caused by fuel oil leakage is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to an oil pump, an oil pump control method, an apparatus, a fuel system, a vehicle, a computer device, a computer-readable storage medium, and a computer program product. Background Art

[0002] With the rapid development of the automotive industry and the growing calls for energy conservation and emission reduction, cars have gradually shifted from pure fuel types to pure electric and hybrid types, and car safety has become a hot issue that everyone is paying more and more attention to.

[0003] For plug-in hybrid vehicles, the working logic of the fuel pump is that once the car is powered on, the fuel pump will work for a few seconds to make the oil pressure in the fuel pipe reach the pressure required by the engine and maintain the pressure. In addition, the fuel pump shutdown and oil cut-off mechanism will only be actively triggered when the vehicle is involved in a violent collision. Once the fuel line ruptures, a large amount of fuel may be sprayed out, which may easily cause an accident.

[0004] It can be seen from this that there is a need to provide an oil pump control solution with higher safety performance. Summary of the Invention

[0005] Based on this, it is necessary to provide an oil pump with active oil return function, as well as an oil pump control method, device, fuel system, vehicle, computer equipment, computer-readable storage medium and computer program product with higher safety performance to address the above technical problems.

[0006] In a first aspect, the present application provides an oil pump, comprising:

[0007] An oil storage barrel, wherein the oil storage barrel is provided with an oil storage space;

[0008] a pumper, the pumper being provided with a pumping channel, a first pumping end of the pumping channel being in communication with the oil storage space;

[0009] a filter having a filter end and a filtered end in communication, the filtered end being in communication with a fuel line of a fuel system, the filter end and the filtered end being connected in parallel to the second pumping end of the pumping channel;

[0010] a first valve body and a second valve body, wherein when the first valve body is opened or closed, the pumping channel is connected to or disconnected from the end to be filtered in a one-way manner; and when the second valve body is opened or closed, the filtered end is connected to or disconnected from the pumping channel in a one-way manner;

[0011] Wherein, when the pump is in standby mode or reverse mode, the first valve body is configured to be in a fully closed state, the second valve body is configured to be in an open state, and the fuel flows from the filtered end to the pumping channel.

[0012] In the above-mentioned oil pump, the filtered end and the filtered end are connected in parallel to the second pumping end of the pumping channel. When the pumping device is in standby mode or reverse mode, the first valve body is closed and the second valve body is opened. At this time, there is no conduction between the pumping channel and the filtered end, and only one-way conduction is conducted between the filtered end and the pumping channel, and the filtered end is also connected to the fuel pipeline. Since the pumping device continuously pumps fuel from the oil storage space to the filter side in the forward mode, when the pumping device switches from the forward mode to the standby mode, the pressure in the filter is greater than the pressure in the pumping channel. Under the action of the pressure difference, the fuel flows from the filtered end to the second pumping end, thereby achieving the effect of fuel backflow from the filter to the pumping device, and then the fuel flows back into the oil storage space until the fuel in the fuel pipeline is emptied.

[0013] In a second aspect, the present application further provides an oil pump, comprising:

[0014] An oil storage barrel, wherein the oil storage barrel is provided with an oil storage space;

[0015] A pumper, wherein the pumper is provided with a pumping channel, and a first pumping end of the pumping channel is connected to the oil storage space;

[0016] a filter having a filter end and a filtered end in communication, the filter end in communication with the second pumping end of the pumping passage, and the filtered end in communication with a fuel line of the fuel system;

[0017] a first one-way valve and a second one-way valve, wherein the first one-way valve and the second one-way valve are assembled at the end to be filtered;

[0018] Wherein, when the pump is in the shutdown mode or the reverse mode, the first one-way valve is configured to be in a closed state, allowing the fuel to flow from the end to be filtered to the second pumping end, and the second one-way valve is configured to be in an open state, allowing the fuel to flow from the end to be filtered to the second pumping end.

[0019] The above-mentioned oil pump is different from the oil pump provided in the first aspect. By providing two one-way valves at the end to be filtered, the flow direction of the fuel can be controlled based on the working state of the pumping device. For example, when the pumping device is in standby mode or reverse mode, the fuel is allowed to flow only from the end to be filtered to the second pumping end. Since the pumping device continuously pumps the fuel from the oil storage space to the filter side in the forward mode, when the pumping device switches from the forward mode to the standby mode, the pressure on the filter side is greater than the pressure in the pumping channel. Under the action of the pressure difference, the fuel flows back from the filter to the pumping device. In this way, the fuel can flow from the fuel pipeline of the fuel system and in sequence along the filter and the pumping channel of the pumping device, and finally all flows back to the oil storage space. In addition, for the overall structure of the oil pump, the oil pump needs to set up fewer pipeline paths, thereby making the oil pump as a whole more compact and small.

[0020] In a third aspect, the present application further provides an oil pump control method, wherein the oil pump is the oil pump provided in the first aspect or the second aspect; the method comprises:

[0021] In response to a first mode switching instruction, controlling the oil pump to stop working, the first mode switching instruction being used to instruct switching the driving mode from the fuel mode to the pure electric mode;

[0022] After waiting for a preset time, obtain the remaining battery power;

[0023] When the remaining power of the battery is greater than or equal to a preset power threshold, the oil pump is controlled to perform a reverse operation according to a preset reversal time, sucking the fuel in the fuel line back into the oil storage tank until the fuel amount in the fuel line is less than the preset fuel amount lower limit.

[0024] In a fourth aspect, the present application further provides an oil pump control device, comprising:

[0025] a signal response module, configured to control the oil pump to stop operating in response to a first mode switching instruction, wherein the first mode switching instruction is configured to instruct switching the driving mode from the fuel mode to the pure electric mode;

[0026] A power acquisition module is used to obtain the remaining power of the battery after waiting for a preset time;

[0027] The reverse oil suction control module is used to control the oil pump to perform a reverse operation according to a preset reversal time when the remaining power of the battery is greater than a preset power threshold, so as to suck the fuel in the fuel line back into the oil storage tank until the fuel amount in the fuel line is less than a preset fuel amount lower limit.

[0028] In a fifth aspect, the present application further provides a fuel system, comprising:

[0029] An oil storage tank, wherein an oil storage cavity is provided in the oil storage tank;

[0030] An oil pump, wherein the oil pump is the oil pump described in any of the above embodiments;

[0031] A fuel line is configured to connect the oil pump to an internal combustion engine.

[0032] In a sixth aspect, an embodiment of the present application further provides a vehicle comprising: a vehicle body, a controller, and the fuel system described in the above embodiment, wherein the fuel system is assembled on the vehicle body, and the controller is configured to execute the steps in the above embodiment of the oil pump control method.

[0033] In a seventh aspect, the present application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps in the above-mentioned oil pump control method embodiment when executing the computer program.

[0034] In an eighth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which implements the steps in the above-mentioned oil pump control method embodiment when executed by a processor.

[0035] In a ninth aspect, the present application further provides a computer program product, comprising a computer program, which implements the steps in the above-mentioned oil pump control method embodiment when executed by a processor.

[0036] The aforementioned fuel pump control method, apparatus, fuel system, vehicle, computer device, computer-readable storage medium, and computer program product allow the fuel pump to adjust the direction of fuel flow based on the operating state of the pumping mechanism. For example, when the pumping mechanism switches to standby or reverse mode, the fuel pump can draw fuel from the fuel line back into the fuel tank. Therefore, upon receiving a command to switch from fuel mode to electric-only mode, the vehicle first controls the fuel pump to shut down. After a period of time, if the remaining battery charge exceeds a preset charge threshold, the fuel pump can be controlled to reverse for a preset reverse duration, drawing fuel from the fuel line back into the fuel tank until the fuel level in the fuel line falls below a preset lower limit. Since the fuel line is empty of fuel, even if it ruptures, widespread fuel leakage will not occur, significantly reducing the risk of fire caused by fuel leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments of the present application or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 is a perspective view of an oil pump in some embodiments of the present application;

[0039] Figure 2 is a top view of an oil pump in some embodiments;

[0040] Figure 3 is a cross-sectional view of an oil pump in some embodiments;

[0041] Figure 4 Schematic diagram of the assembly of a pump, a filter, a first connecting piece, a first valve body, and a second valve body in some embodiments;

[0042] Figure 5 This is a schematic diagram of the oil circuit of the fuel system of the oil pump in some embodiments of the present application;

[0043] Figure 6 It is a front view of an oil pump in some other embodiments of the present application;

[0044] Figure 7 A top view of an oil pump in some other embodiments of the present application;

[0045] Figure 8 for Figure 7 Cross-section at AA in FIG;

[0046] Figure 9 for Figure 3 A magnified view of point A in the figure;

[0047] Figure 10 is a cross-sectional view of a connecting member in some embodiments of the present application;

[0048] Figure 11 Schematic diagram of the oil circuit of the fuel system according to some embodiments of the present application;

[0049] Figure 12 It is a front view of a two-way valve according to some embodiments of the present application;

[0050] Figure 13 Schematic diagram of a flow chart of an oil pump control method in some embodiments;

[0051] Figure 14 Schematic diagram of the flow of the oil pump control method in other embodiments;

[0052] Figure 15 is a flowchart of steps for responding to a startup instruction in some embodiments;

[0053] Figure 16 Schematic diagram of a flow chart of steps of responding to a start instruction in some other embodiments;

[0054] Figure 17 is a structural block diagram of an oil pump control device in some embodiments;

[0055] Figure 18 is a structural block diagram of an oil pump control device in some other embodiments;

[0056] Figure 19 1 is a diagram of the internal structure of a computer device in some embodiments.

[0057] Reference numerals:

[0058] 100. Oil pump; 1. Oil storage tank; 101. Oil storage space; 2. Pumping device; 20. Pumping channel; 201. First pumping end; 202. Second pumping end; 2021. First pump interface; 3. Filter; 3101. End to be filtered; 3102. Filtered end; 4. Two-way flow guide structure; 40. Two-way valve; 41. First valve body; 42. Second valve body; 51. First connecting piece; 511. First connecting interface; 512. Second connecting interface; 513. Third connecting interface; 514. Fourth connecting interface; 5. Second connecting piece; 510. Fifth connecting interface; 520. Sixth connecting interface; 530. Seventh connecting interface; 6. Pressure regulating valve; 61. Pressure regulating interface; 62. Pressure regulating outlet; 2000. Fuel system; 2100. Oil storage tank; 2200. Fuel pipeline. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] With the rapid development of the automotive industry and the growing calls for energy conservation and emission reduction, cars have gradually shifted from pure fuel types to pure electric and hybrid types, and car safety has become a hot issue that everyone is paying more and more attention to.

[0064] At present, the mainstream automobile fuel systems include a constant pressure fuel supply system dominated by a DC pump, which is controlled by the engine management system controlling the opening and closing of the fuel pump relay to realize the power on and off of the fuel pump and the start and stop of the fuel pump; another is an on-demand fuel supply system dominated by a brushless fuel pump, which is controlled by changing the output voltage of the fuel pump control circuit with speed control to control the operating speed of the fuel pump.

[0065] Regardless of the fuel system, for plug-in hybrid vehicles, the working logic of the fuel pump is mostly that once the car is powered on, the fuel pump will work for a few seconds to make the oil pressure in the fuel pipe reach the required pressure of the engine and maintain the pressure. In addition, the fuel pump shutdown and oil cut-off mechanism will only be actively triggered when the vehicle is involved in a violent collision. Once the fuel line ruptures, a large amount of fuel may be sprayed out, which may easily cause an accident.

[0066] In order to solve the above technical problems, the present invention provides an oil pump. Figures 1 to 4 As shown, an oil pump 100 according to some embodiments of the present application includes an oil storage tank 1, a pumping device 2, and a filter 3. The oil storage tank 1 includes an oil storage space 101, and the pumping device 2 is mounted within the oil storage space 101. The pumping device 2 is provided with a pumping channel 20, wherein a first pumping end 201 of the pumping channel 20 is connected to the oil storage space 101 and the pumping channel 20 is configured to selectively drive the flow of fuel. The filter 3 has a connected filtered end 3101 and a filtered end 3102. The filtered end 3102 is configured to communicate with the fuel line 2200 of the fuel system 2000. The filtered end 3101 and the filtered end 3102 are connected in parallel to the second pumping end 202 of the pumping channel 20. The second pumping end 202, the filtered end 3101, and the filtered end 3102 can all selectively conduct fuel in a single direction.

[0067] It should be noted that, while the present application uses the fuel pump 100 as an example of a vehicle fuel system 2000, the present application is not limited thereto. For example, the fuel pump 100 may also be used in fuel systems 2000 of other vehicles, such as ships, aircraft, and the like.

[0068] For example, when the vehicle's internal combustion engine is in operation, the pumper 2 is in the startup mode and in the first startup mode (forward rotation mode). In the first startup mode, the pumper 2 draws fuel from the oil storage space 101 into the pumping channel 20 through the first pumping end 201, causing the fuel to flow along the pumping channel 20 from the first pumping end 201 toward the second pumping end 202.

[0069] In this embodiment, the filtered end 3101 can be considered the oil inlet, and the filtered end 3102 can be considered the oil outlet. The filtered end 3101 and the filtered end 3102 are connected in parallel to the second pumping end 202, meaning that the second pumping end 202 is connected to both the filtered end 3101 and the filtered end 3102 of the filter 3. Since the second pumping end 202 and the filtered end 3101 are configured for one-way communication from the second pumping end 202 to the filtered end 3101, and the second pumping end 202 and the filtered end 3102 are configured for one-way communication from the filtered end 3102 to the second pumping end 202, this restricts the direction of fuel flow between the second pumping end 202 and the filtered end 3101, as well as the direction of fuel flow between the second pumping end 202 and the filtered end 3102.

[0070] More specifically, between the second pumping end 202 and the end to be filtered 3101 , the fuel can only flow from the second pumping end 202 to the end to be filtered 3101 ; between the second pumping end 202 and the filtered end 3102 , the fuel can only flow from the filtered end 3102 to the second pumping end 202 .

[0071] Thus, when pumper 2 is in the first activation mode, it pumps fuel only from second pumping end 202 to filtered end 3101. The filtered fuel then flows into filtered end 3102, and is then delivered to the internal combustion engine via fuel line 2200 of fuel system 2000. As the fuel flows through filter 3, it flows from filtered end 3101 to filtered end 3102, allowing filter 3 to filter the fuel. This reduces the amount of fuel containing impurities delivered to the internal combustion engine via fuel line 2200 of fuel system 2000, thereby improving the operating stability of the internal combustion engine. It should be understood that when the pumper 2 is in the first starting mode, there is no conduction between the second pumping end 202 and the filtered end 3102, so the fuel at the filtered end 3102 cannot flow back to the second pumping end 202, ensuring that the fuel at the filtered end 3102 can only be delivered to the internal combustion engine through the fuel pipeline 2200 of the fuel system 2000, ensuring that the fuel pipeline 2200 has a stable oil pressure to deliver the fuel to the internal combustion engine, and ensuring the working stability of the internal combustion engine.

[0072] For example, when the internal combustion engine is stopped, it no longer requires fuel supply from the fuel system 2000. This allows the pumper 2 to enter a standby mode. In this mode, the pumper 2 stops driving the fuel, allowing it to flow from the first pumping end 201 toward the second pumping end 202 along the pumping channel 20. When the pumper 2 is in standby mode, the connection between the second pumping end 202 and the filtered end 3101 is disconnected, while the connection between the second pumping end 202 and the filtered end 3102 is connected. This causes the pressure within the filter 3 to be greater than the pressure within the pumping channel 20. Due to this pressure difference, the fuel flows from the filtered end 3102 toward the second pumping end 202, thereby causing the fuel to flow back from the filter 3 to the pumper 2, thereby causing the fuel to flow back into the oil storage space 101.

[0073] It should be understood that since the filtered end 3102 is also connected to the fuel pipeline 2200 of the fuel system 2000, under the action of the pressure difference, the fuel in the fuel pipeline 2200 also flows back to the filtered end 3102, and finally the fuel flows through the filtered end 3102 through the pumper 2 to flow back to the oil storage space 101. As the fuel in the fuel pipeline 2200 flows back, the pressure in the fuel pipeline 2200 also decreases, so that the fuel in the fuel pipeline 2200 gradually decreases from a high-pressure state to a micro-pressure state, or even a normal pressure state.

[0074] Because the oil pressure within fuel line 2200 is at a low or normal pressure, even if fuel line 2200 ruptures after a severe mechanical impact in an accident, fuel splashing is significantly reduced, minimizing the large-scale contact between fuel and air and reducing the risk of fire. Furthermore, the reduced area of ​​fuel splashing allows rescue workers to more easily and safely approach the accident vehicle for rescue operations, facilitates subsequent cleanup and repair of the accident scene, and reduces fuel pollution to the environment and damage to other equipment and facilities.

[0075] Alternatively, when the internal combustion engine is in a stopped state, the pumper 2 may be in the second starting mode. When the pumper 2 is in the second starting mode, the pumper 2 drives the fuel to flow from the second pumping end 202 toward the first pumping end 201 along the pumping channel 20 . And when the pumper 2 is in the second starting mode, the second pumping end 202 and the end to be filtered 3101 are configured to be in a non-conducting state, and the second pumping end 202 and the filtered end 3102 are configured to be in a conducting state, so that the pressure in the filter 3 is greater than the pressure in the pumping channel 20. Under the action of the pressure difference, the fuel flows from the filtered end 3102 toward the second pumping end 202, thereby achieving the effect of fuel reflux from the filter 3 to the pumper 2, and then making the fuel in the fuel pipeline 2200 completely return to the oil storage space 101, and finally achieving the effect of emptying the fuel pipeline 2200. It can be understood that emptying here does not mean 100% emptying physically, but means that the amount of fuel in the fuel pipeline is lower than a very small lower limit of the fuel amount, which can be understood as the fuel in the fuel pipeline being emptied. Since the fuel in the fuel line 2200 has been emptied, when the vehicle suffers a severe mechanical impact in an accident, fuel leakage and the occurrence of secondary accidents caused by fuel leakage are reduced, thereby improving the safety of the vehicle.

[0076] According to the oil pump 100 provided in the embodiment of the present application, since the filter end 3101 and the filtered end 3102 of the filter 3 are connected in parallel to the pumping channel 20, when the pumper 2 is in the first starting mode, the second pumping end 202 and the filtered end 3101 are connected, and fuel can only flow from the second pumping end 202 to the filtered end 3101, and there is no connection between the second pumping end 202 and the filtered end 3102. This ensures that the pumper 2 pumps fuel from the oil storage space 101 to the filter 3 at an appropriate pressure, so that the fuel is filtered by the filter 3 and then pumped to the fuel pipeline 2200 of the fuel system 2000, and finally the fuel is supplied to the internal combustion engine. When pumper 2 is in standby mode or the second activation mode, there is no communication between second pumping end 202 and filtered end 3101, but communication between second pumping end 202 and filtered end 3102. Fuel can only flow from filtered end 3102 to second pumping end 202, thus causing fuel backflow within fuel line 2200. When pumper 2 is in standby mode, the oil pressure within fuel line 2200 is at a low or normal pressure, minimizing the risk of secondary accidents caused by fuel splashing. When pumper 2 is in the second activation mode (reverse mode), the fuel within fuel line 2200 can be emptied, reducing the possibility of secondary accidents.

[0077] It should be noted that, because the pumping device 2 can have a first activation mode, a second activation mode, and a standby mode, the pumping device 2 can drive the fuel to flow in different directions, as well as when the pumping device 2 is not driving the fuel. That is, the pumping channel 20 is configured to selectively drive the fuel to flow. Furthermore, the filtered end 3101 and the filtered end 3102 are connected in parallel to the second pumping end 202. When the filtered end 3101 and the second pumping end 202 are in a conductive state, fuel can only flow from the second pumping end 202 to the filtered end 3101, establishing a one-way conductive relationship between the filtered end 3101 and the second pumping end 202. When the filtered end 3102 and the second pumping end 202 are in a conductive state, fuel can only flow from the filtered end 3102 to the second pumping end 202, establishing a one-way conductive relationship between the filtered end 3102 and the second pumping end 202. The conduction state between the filtered end 3101 and the second pumping end 202 and the conduction state between the filtered end 3102 and the second pumping end 202 are adjusted according to the working mode of the pumping device 2, that is, the second pumping end 202 and the filtered end 3101 and the filtered end 3102 can be selectively unidirectionally conducted. In other words, when the second pumping end 202 and the end to be filtered 3101 are in a conductive state, the fuel can flow from the second pumping end 202 to the end to be filtered 3101, and when the second pumping end 202 and the end to be filtered 3101 are in a non-conductive state, the fuel cannot flow between the second pumping end 202 and the end to be filtered 3101; when the second pumping end 202 and the filtered end 3102 are in a conductive state, the fuel can flow from the filtered end 3102 to the second pumping end 202, and when the second pumping end 202 and the filtered end 3102 are in a non-conductive state, the fuel cannot flow between the second pumping end 202 and the filtered end 3102.

[0078] Therefore, when a vehicle is equipped with the fuel pump 100 provided in an embodiment of the present application, since the filtered end 3101 and the filtered end 3102 are connected in parallel to the pumping channel 20, the pump 2 delivers fuel to the filter 3 and then to the internal combustion engine when in the first starting mode. The pump 2 allows fuel to flow back in the standby mode and the second starting mode. When the pump 2 is in the standby mode, the fuel line 2200 is at a low pressure or normal pressure state to reduce the likelihood of secondary accidents. When the pump 2 is in the second starting mode, the fuel in the fuel line 2200 can be emptied, reducing the possibility of secondary accidents.

[0079] It should be noted that the oil pump 100 provided in the embodiments of the present application resolves the two completely conflicting issues of maintaining and releasing pressure within the oil pump 100, while also enabling active oil return from the oil pump 100. For example, when the vehicle is in pure electric mode, with the internal combustion engine shut down, the pump unit 2 is in standby mode, maintaining the pressure within the fuel line 2200 at a low or normal pressure (using active pressure release). Alternatively, when the pump unit 2 is in the second startup mode, the fuel line 2200 is completely empty (using the oil pump 100 to draw oil), reducing the risk of fire caused by fuel leakage in abnormal situations such as collisions.

[0080] When the vehicle is in fuel mode, if a collision occurs, pumper 2 can quickly enter standby mode, utilizing the pressure differential within fuel line 2200 to rapidly recirculate fuel. This reduces the risk of fire caused by a rupture in fuel line 2200, which could result in a large amount of fuel being sprayed over a wide area during a collision or other abnormal situation. Alternatively, pumper 2 can quickly enter a second start-up mode to reduce the amount of fuel in fuel line 2200. It should be understood that during this process, as the amount of fuel in fuel line 2200 decreases, the pressure within fuel line 2200 also decreases, further reducing the risk of fuel leakage.

[0081] Since the pump 2 can empty the fuel in the fuel line 2200 when in the second start-up mode, the occurrence of fuel leakage during vehicle maintenance can be significantly reduced, thereby reducing the risk of fire caused by fuel leakage during maintenance, ensuring the safety of maintenance personnel, and better protecting the air, environment, and personnel health.

[0082] Combine Figure 4 As shown, in some embodiments of the present application, the oil pump 100 further includes a first valve body 41 and a second valve body 42. When the first valve body 41 is opened or closed, the pumping channel 20 is unidirectionally connected to or disconnected from the end to be filtered 3101. When the second valve body 42 is opened or closed, the filtered end 3102 is unidirectionally connected to or disconnected from the pumping channel 20. The first valve body 41 allows fuel to flow from the pumping channel 20 to the end to be filtered 3101, and the second valve body 42 allows fuel to flow from the filtered end 3102 to the pumping channel 20.

[0083] For example, in some embodiments of the present application, the first valve body 41 and the second valve body 42 are both configured as two-way valves.

[0084] When the pumper 2 is in the first startup mode, the first valve body 41 is in an open state, allowing fuel to flow only from the pumping channel 20 to the filtered end 3101. The second valve body 42 is fully closed. This allows fuel to flow from the pumping channel 20 to the filtered end 3101 when the pumper 2 is in the first startup mode, but prevents fuel from flowing between the pumping channel 20 and the filtered end 3102.

[0085] When the pump unit 2 is in standby mode or the second activation mode, the second valve body 42 is in an open state, allowing fuel to flow only from the filtered end 3102 to the pumping channel 20. The first valve body 41 is fully closed. This allows fuel to flow from the filtered end 3102 to the pumping channel 20 when the pump unit 2 is in standby mode or the second activation mode, but prevents fuel from flowing between the pumping channel 20 and the filtered end 3101.

[0086] Both the first valve body 41 and the second valve body 42 are configured as one-way valves. The first valve body 41 can be a pressure-maintaining one-way valve, while the second valve body 42 can be a non-pressure-maintaining one-way valve. When the pumper 2 is in the first startup mode, the pumper 2 drives fuel from the pumping channel 20 to the filtered end 3101. The flowing fuel automatically drives the first valve body 41 from a closed state to an open state, thereby establishing electrical communication between the second pumping end 202 and the filtered end 3101, allowing fuel to flow into the filtered end 3101. Simultaneously, the second valve body 42 is closed, preventing fuel from the filtered end 3102 from flowing back into the second pumping end 202. This ensures that fuel from the filtered end 3102 can only be delivered to the internal combustion engine through the fuel line 2200 of the fuel system 2000. This ensures stable oil pressure in the fuel line 2200 for fuel delivery to the internal combustion engine, thereby ensuring stable operation of the internal combustion engine. When the pump unit 2 is in the standby mode or the second start-up mode, the pressure at the filtered end 3102 is greater than the pressure in the pumping passage 20, causing the second valve body 42 to automatically change from a closed state to an open state, thereby establishing communication between the filtered end 3102 and the second pumping end 202 and allowing fuel to flow back from the filtered end 3102 to the pumping passage 20. Simultaneously, the first valve body 41 automatically changes from an open state to a closed state.

[0087] It is understood that in other embodiments of the present application, both the first valve body 41 and the second valve body 42 may be configured as one-way valves, or one of the first valve body 41 and the second valve body 42 may be configured as a two-way valve, and the other of the first valve body 41 and the second valve body 42 may be configured as a one-way valve. The specific configuration may be determined based on actual conditions and is not intended to be exclusive here.

[0088] For example, in some embodiments of the present application, both the first valve body 41 and the second valve body 42 can be configured as one-way valves. The first valve body 41 is configured to allow fuel to flow from the pumping channel 20 to the filtered end 3101, while the second valve body 42 is configured to allow fuel to flow from the filtered end 3102 to the pumping channel 20. This allows the first and second valve bodies 41 and 42 to selectively open and close in response to the pressure differential generated by the operating mode of the pump 2, thereby achieving selective one-way communication between the second pumping end 202 and both the filtered end 3101 and the filtered end 3102. Therefore, configuring both the first and second valve bodies 41 and 42 as one-way valves reduces the difficulty of controlling the first and second valve bodies 41 and 42, as their open and closed states change with the pressure differential. This not only simplifies the control logic of the controller of the oil pump 100, but also improves the operational stability of the oil pump 100.

[0089] like Figures 1 to 5 As shown, in some embodiments of the present application, the oil pump 100 may further include a first communication member 51, which is provided with a first communication interface 511, a second communication interface 512, and a third communication interface 513 that are interconnected. The first communication interface 511 is connected to the second pumping end 202; the second communication interface 512 is connected to the end to be filtered 3101, and the first valve body 41 is configured to control the second communication interface 512 and the end to be filtered 3101 to selectively conduct one-way communication; the third communication interface 513 is connected to the filtered end 3102, and the second valve body 42 is configured to control the third communication interface 513 and the filtered end 3102 to selectively conduct one-way communication.

[0090] See Figure 5 As shown, in some embodiments of the present application, the oil pump 100 may further include a pressure regulating valve 6, which is provided with a pressure regulating port 61 and a pressure regulating outlet 62. The pressure regulating port 61 and the pressure regulating outlet 62 can selectively conduct in a unidirectional manner. It should be understood that when the pumping device 2 is in the first starting mode and the oil pressure output by the pumping device 2 is greater than the oil pressure required by the internal combustion engine, the pressure regulating port 61 and the pressure regulating outlet 62 are in a conducting state, allowing the fuel to flow back from the pressure regulating port 61 to the oil storage space 101.

[0091] Among them, see Figure 5As shown, in some embodiments, the first communication member 51 is further provided with a fourth communication interface 514, which is in communication with the first communication interface 511. Since the first communication interface 511, the second communication interface 512, and the third communication interface 513 are interconnected, the first communication interface 511, the second communication interface 512, the third communication interface 513, and the fourth communication interface 514 are interconnected. In addition, the fourth communication interface 514 is also connected to the pressure regulating interface 61, and the pressure regulating outlet 62 is in communication with the oil storage space 101.

[0092] See Figures 6 to 9 As shown and Figure 11 In some embodiments of the present application, an oil pump is also provided, including an oil storage barrel 1, a pumping device 2, a filter 3 and a two-way flow guide structure 4.

[0093] The oil storage tank 1 includes an oil storage space 101 for storing fuel. The pumping unit 2 includes a pumping channel 20, a first pumping end 201 of which communicates with the oil storage space 101 and is configured to selectively drive the flow of fuel. The filter 3 includes a filter end 3101 and a filtered end 3102, the filtered end 3101 communicating with the second pumping end 202 of the pumping channel 20. The filtered end 3102 is configured to communicate with the fuel line 2200 of the fuel system 2000. The bidirectional flow guide structure 4 is configured to selectively bidirectionally conduct fuel between the second pumping end 202 and the filter end 3101, depending on the operating state of the pumping unit 2.

[0094] When the vehicle's internal combustion engine is in operation, the pumper 2 is in the activated operating state and is in the first activation mode. In this first activation mode, the pumper 2 draws fuel from the oil storage space 101 into the pumping channel 20 through the first pumping end 201, causing the fuel to flow along the pumping channel 20 from the first pumping end 201 toward the second pumping end 202. Because the filter end 3101 of the filter 3 is in communication with the second pumping end 202, and when the pumper 2 is in the first activation mode, the two-way flow guide structure 4 is configured to allow fuel to flow from the second pumping end 202 to the filter end 3101, and is also configured to restrict fuel from flowing from the filter end 3101 to the second pumping end 202. Thus, when pumper 2 is in the first activation mode, pumper 2 is used to transfer fuel within oil storage space 101 through filtered end 3101 into filter 3, achieving the effect of pumper 2 driving fuel from oil storage space 101 to filter 3 in the first activation mode. Furthermore, because filtered end 3102 is connected to filtered end 3101 and is also connected to fuel line 2200 of fuel system 2000, the fuel, after being filtered by pumper 2 through filter 3, flows through filtered end 3102 of filter 3 to fuel line 2200 of fuel system 2000. The filtered fuel from filter 3 is then delivered along fuel line 2200 of fuel system 2000 to the internal combustion engine.

[0095] Thus, when the pumper 2 is in the first startup mode, the pumper 2 drives the fuel to flow through the filter 3 from the filtered end 3101 to the filtered end 3102, thereby filtering the fuel. This reduces the possibility of fuel containing impurities being delivered to the internal combustion engine through the fuel line 2200 of the fuel system 2000, thereby improving the operating stability of the internal combustion engine. It should be understood that when the pumper 2 is in the first startup mode, the pumper 2 continuously drives the fuel to flow through the pumping channel 20 from the first pumping end 201 to the second pumping end 202, so that the fuel is continuously pumped from the oil storage space 101 to the filter 3, and after flowing through the filter 3, it is delivered to the internal combustion engine along the fuel line 2200 of the fuel system 2000. It should also be noted that, since the pumper 2 is in the first starting mode, the two-way flow guide structure 4 is also configured to limit the flow of fuel from the filtered end 3101 to the second pumping end 202. In this way, in the process of the fuel flowing from the oil storage barrel 1 to the filter 3, the fuel is prevented from flowing from the filter 3 to the oil storage barrel 1, thereby ensuring that the fuel pipeline 2200 has a stable oil pressure to deliver the fuel to the internal combustion engine, thereby ensuring the working stability of the internal combustion engine.

[0096] Furthermore, for example, when the internal combustion engine is stopped, it no longer requires fuel supply from the fuel system 2000. This allows the pumper 2 to enter a standby mode. In this mode, the pumper 2 ceases driving fuel along the pumping channel 20 from the first pumping end 201 toward the second pumping end 202. When the pumper 2 is in standby mode, the bidirectional flow guide structure 4 is configured to restrict fuel flow from the second pumping end 202 toward the filtered end 3101, while also allowing fuel flow from the filtered end 3101 toward the second pumping end 202. Furthermore, because the pumper 2 previously continuously pumped fuel from the oil storage space 101 toward the filter 3, when the pumper 2 switches from the first startup mode to the standby mode, the pressure on the filter 3 side is greater than the pressure within the pumping channel 20. Due to this pressure differential, fuel flows back from the filter 3 to the pumper 2. In this way, after the pumper 2 switches from the first start-up mode to the standby mode, the fuel can flow from the fuel pipeline 2200 of the fuel system 2000 and in sequence along the filter 3 and the pumping channel 20 of the pumper 2, and can finally flow back into the oil storage space 101.

[0097] It should be understood that as the fuel in fuel line 2200 flows back, the pressure in fuel line 2200 also decreases, gradually reducing the pressure in fuel line 2200 from a high pressure state to a low pressure state, or even to normal pressure. Because the oil pressure in fuel line 2200 is at a low pressure or normal pressure state, even if fuel line 2200 ruptures after a severe mechanical impact in an accident, the likelihood of fuel splashing is greatly reduced, thereby reducing the large-scale contact between fuel and air and lowering the risk of fire. Furthermore, the reduced area of ​​fuel splashing allows rescue workers to more easily and safely approach the accident vehicle for rescue operations, facilitates subsequent cleanup and repair of the accident scene, and reduces fuel pollution to the environment and damage to other equipment and facilities.

[0098] Alternatively, when the internal combustion engine is stopped, the pumper 2 can be in the second startup mode. In this second startup mode, the pumper 2 drives fuel along the pumping channel 20 from the second pumping end 202 toward the first pumping end 201. Furthermore, when the pumper 2 is in the second startup mode, the two-way flow guide structure 4 is configured to restrict fuel flow from the second pumping end 202 toward the filtered end 3101, while also allowing fuel flow from the filtered end 3101 toward the second pumping end 202. This causes the pressure within the filter 3 to be greater than the pressure within the pumping channel 20 (the pumping channel 20 is in a negative pressure state). Due to this pressure differential, the fuel flows back from the filter 3 to the pumper 2. Thus, when pumper 2 is in the second activation mode, fuel can flow from fuel line 2200 of fuel system 2000, sequentially along filter 3 and pumping channel 20 of pumper 2, under the action of pumper 2, and ultimately back into fuel storage space 101. Ultimately, the fuel in fuel line 2200 can be completely returned to fuel storage space 101, ultimately emptying fuel line 2200. Because the fuel in fuel line 2200 has been emptied, the possibility of fuel leakage and secondary accidents caused by fuel leakage is significantly reduced if the vehicle suffers severe mechanical impact in an accident, thereby improving vehicle safety.

[0099] It should be noted that the pump 2 can drive the fuel to flow in different directions in the first and second starting modes, and does not drive the fuel in the standby mode. That is, the pumping passage 20 is configured to selectively drive the fuel to flow. Furthermore, when the pump 2 is in the first starting mode, the bidirectional flow guide structure 4 is configured to allow fuel to flow from the second pumping end 202 to the filter end 3101, and is also configured to restrict fuel flow from the filter end 3101 to the second pumping end 202. Furthermore, when the pump 2 is in the second starting mode and the standby mode, the bidirectional flow guide structure 4 is configured to restrict fuel flow from the second pumping end 202 to the filter end 3101, and is also configured to allow fuel flow from the filter end 3101 to the second pumping end 202. This allows for selective bidirectional communication between the second pumping end 202 and the filter end 3101.

[0100] Thus, when a vehicle is equipped with the fuel pump 100 of the present application, the pumping channel 20 of the pumping unit 2 is configured to selectively drive the flow of fuel, the filtered end 3101 communicates with the second pumping end 202 of the pumping channel 20, the filtered end 3102 is connected to the fuel line 2200 of the fuel system 2000, and the bidirectional flow guide structure 4 is configured to selectively bidirectionally conduct fuel between the second pumping end 202 and the filtered end 3101 depending on the operating state of the pumping unit 2. This allows the pumping unit 2 to deliver fuel to the internal combustion engine after the filter 3 when in the first starting mode. Fuel is then returned to the pumping unit 2 in the standby mode and the second starting mode. In the standby mode, the fuel line 2200 is at a low or normal pressure to reduce the likelihood of secondary accidents. In the second starting mode, the fuel in the fuel line 2200 can be emptied, significantly reducing the possibility of secondary accidents.

[0101] When the vehicle is in fuel mode, if a collision occurs, pumper 2 can quickly enter standby mode, utilizing the pressure differential within fuel line 2200 to rapidly recirculate fuel. This reduces the risk of fire caused by a rupture in fuel line 2200, which could result in a large amount of fuel being sprayed over a wide area during a collision or other abnormal situation. Alternatively, pumper 2 can quickly enter a second start-up mode to reduce the amount of fuel in fuel line 2200. It should be understood that during this process, as the amount of fuel in fuel line 2200 decreases, the pressure within fuel line 2200 also decreases, further reducing the risk of fuel leakage.

[0102] Since the pumper 2 can empty the fuel in the fuel line 2200 when it is in the second start-up mode, the risk of fuel leakage and fire caused by fuel leakage is significantly reduced during vehicle maintenance, ensuring the safety of maintenance personnel while better protecting the air, environment and personnel health.

[0103] The aforementioned oil pump 100 is provided with a bidirectional flow-guiding structure 4. Since the bidirectional flow-guiding structure 4 is configured to selectively bidirectionally conduct fuel between the second pumping end 202 and the filter end 3101 according to the operating state of the pumping unit 2, the bidirectional flow-guiding structure 4 coordinates with the operating state of the pumping unit 2 to control the flow direction of the fuel, thereby achieving the effect of selective unidirectional flow of fuel between the second pumping end 202 and the filter end 3101. This allows the fuel flow direction to be adjusted within a single flow path. With respect to the overall structure of the oil pump 100, fewer piping paths are required, making the oil pump 100 more compact and contributing to its overall compactness.

[0104] In some embodiments of the present application, the two-way flow guide structure 4 includes a first one-way valve and a second one-way valve, which are opened and closed respectively according to the operating state of the pumper 2. The first one-way valve is configured to allow fuel to flow from the second pumping end 202 to the filter end 3101 when open, and the second one-way valve is configured to allow fuel to flow from the filter end 3101 to the second pumping end 202 when open.

[0105] For example, in some embodiments of the present application, the two-way flow guide structure 4 is mounted on the filter end 3101 of the filter 3, i.e., the first one-way valve and the second one-way valve are mounted on the filter end 3101. When the pump 2 is in the first startup mode, the first one-way valve is configured to be open, and the second one-way valve is configured to be closed. Since the first one-way valve is configured to allow fuel to flow from the second pumping end 202 to the filter end 3101 when open, and the second one-way valve is configured to allow fuel to flow from the filter end 3101 to the second pumping end 202 when open, the fuel is discharged. Therefore, when the pumper 2 is in the first starting mode, the fuel can only flow from the second pumping end 202 to the filtered end 3101 to flow through the first one-way valve, and then flow through the filtered end 3101 through the first one-way valve to further flow into the interior of the filter 3, and finally make the fuel flow in the direction of the filtered end 3102 to further flow to the fuel pipeline 2200 of the fuel system 2000 and be delivered to the internal combustion engine.

[0106] And because the second one-way valve is configured to be in a closed state, it also prevents the fuel from flowing in the direction from the filter end 3101 to the second pumping end 202, that is, it prevents the fuel from flowing back when the pumper 2 is in the first starting mode. As a result, the oil pump 100 has the ability to maintain pressure when the pumper 2 is in the first starting mode, so that the pressure in the fuel pipeline 2200 of the fuel system 2000 is in a preset state, ensuring that the fuel is pumped to the internal combustion engine with a stable oil pressure, thereby improving the working stability of the internal combustion engine.

[0107] Furthermore, when the pumping device 2 is in the standby mode or the second activation mode, the first one-way valve is closed and the second one-way valve is open. Since the first one-way valve is configured to allow fuel to flow from the second pumping end 202 to the filtered end 3101 when open, and the second one-way valve is configured to allow fuel to flow from the filtered end 3101 to the second pumping end 202 when open, when the pumping device 2 is in the standby mode or the second activation mode, fuel can only flow from the filtered end 3101 to the second pumping end 202, passing through the second one-way valve. The fuel then flows through the filtered end 3101 and further back into the inflow pumping channel 20, ultimately returning the fuel to the oil storage space 101. Thus, when the pumper 2 is in the standby mode or the second start-up mode, fuel can flow from the fuel line 2200 of the fuel system 2000, sequentially along the filter 3 and the pumping channel 20 of the pumper 2, and ultimately back into the oil storage space 101. As the fuel in the fuel line 2200 flows back, the pressure in the fuel line 2200 decreases, gradually reducing the pressure in the fuel line 2200 from a high pressure state to a low pressure state, or even to a normal pressure state, ultimately achieving the effect of emptying the fuel line 2200.

[0108] Thus, according to the oil pump 100 of the present application, by configuring the two-way flow guiding structure 4 as a first one-way valve and a second one-way valve, and by opening and closing the first and second one-way valves according to the operating state of the pumping unit 2, when the pumping unit 2 is in the first starting mode, the two-way flow guiding structure 4 is configured to allow fuel to flow from the second pumping end 202 to the filter end 3101, and is also configured to restrict fuel flow from the filter end 3101 to the second pumping end 202. Furthermore, when the pumping unit 2 is in the second starting mode and the standby mode, the two-way flow guiding structure 4 is configured to restrict fuel flow from the second pumping end 202 to the filter end 3101, and is also configured to allow fuel flow from the filter end 3101 to the second pumping end 202. This allows selective two-way communication between the second pumping end 202 and the filter end 3101, thereby adjusting the fuel flow direction according to the operating state of the pumping unit 2. It should be noted that, in the above embodiment, the first and second one-way valves are used as an example to illustrate the filter end 3101, but the present application is not limited thereto. For example, the first and second one-way valves can also be disposed in the pipeline between the second pumping end 202 and the filter end 3101.

[0109] In the above embodiment, the bidirectional flow guide structure 4 includes a first one-way valve and a second one-way valve as an example for description, but the present application is not limited thereto. Figure 12As shown, the two-way flow guide structure 4 is a two-way valve 40. The two-way valve 40 is configured to have a first open state and a second open state according to the operating state of the pump 2. In the first open state, the two-way valve 40 allows fuel to flow from the second pumping end 202 to the filter end 3101, and in the second open state, the two-way valve 40 allows fuel to flow from the filter end 3101 to the second pumping end 202.

[0110] For example, when the pumper 2 is in the first startup mode, the two-way valve 40 is in the first open state. At this time, the two-way valve 40 only allows fuel to flow from the second pumping end 202 to the filtered end 3101, and restricts fuel from the filtered end 3101 to the second pumping end 202. This allows fuel to flow only from the second pumping end 202 to the filtered end 3101, passing through the two-way valve 40. The fuel then flows through the filtered end 3101 and further into the interior of the filter 3, ultimately allowing the fuel to flow toward the filtered end 3102, further flowing into the fuel line 2200 of the fuel system 2000 and being delivered to the internal combustion engine. Furthermore, since the two-way valve 40 restricts the flow of fuel from the filter end 3101 to the second pumping end 202 in the first open state, this prevents the fuel from flowing back when the pumper 2 is in the first starting mode. This enables the oil pump 100 to have the ability to maintain pressure when the pumper 2 is in the first starting mode, so that the pressure in the fuel pipeline 2200 of the fuel system 2000 is at a preset state, ensuring that the fuel is pumped to the internal combustion engine at a stable oil pressure, thereby improving the working stability of the internal combustion engine.

[0111] Furthermore, when the pump unit 2 is in the standby mode or the second activation mode, the two-way valve 40 is in the second open state. In this state, the two-way valve 40 restricts fuel flow from the second pumping end 202 to the filter end 3101 and only allows fuel flow from the filter end 3101 to the second pumping end 202. Therefore, when the pump unit 2 is in the standby mode or the second activation mode, fuel can only flow from the filter end 3101 to the second pumping end 202, passing through the two-way valve 40. From there, the fuel can flow through the filter end 3101 and further back into the inflow pumping channel 20, ultimately returning the fuel to the oil storage space 101. Thus, when the pump unit 2 is in the standby mode or the second activation mode, fuel can flow from the fuel line 2200 of the fuel system 2000, sequentially along the filter 3, and then along the pumping channel 20 of the pump unit 2, ultimately returning to the oil storage space 101. As the fuel in the fuel line 2200 flows back, the pressure in the fuel line 2200 also decreases, causing the pressure in the fuel line 2200 to gradually drop from a high-pressure state to a micro-pressure state, or even a normal pressure state, and ultimately achieving the effect of emptying the fuel line 2200.

[0112] The above-described oil pump 100 utilizes a two-way flow guide structure 4 configured as a two-way valve 40. The two-way valve 40 is configured to have a first open state and a second open state depending on the operating state of the pumping unit 2. Thus, when the pumping unit 2 is in the first startup mode, the two-way valve 40 only allows fuel to flow from the second pumping end 202 to the filter end 3101, restricting fuel flow from the filter end 3101 to the second pumping end 202. Furthermore, when the pumping unit 2 is in the second startup mode or standby mode, the two-way valve 40 restricts fuel flow from the second pumping end 202 to the filter end 3101, allowing fuel flow only from the filter end 3101 to the second pumping end 202. This allows for selective two-way flow between the second pumping end 202 and the filter end 3101, thereby adjusting the direction of fuel flow according to the operating state of the pumping unit 2. In certain scenarios, the fuel can be completely sucked back into the fuel tank, reducing safety risks associated with fuel line ruptures.

[0113] See Figures 6 to 11 As shown, in some embodiments of the present application, the oil pump 100 may further include a second connecting member 5, which is provided with a fifth connecting port 510 and a sixth connecting port 520. The fifth connecting port 510 is connected to the second pumping end 202, and the sixth connecting port 520 is connected to the filter end 3101. In other words, the second connecting member 5 is used to connect the second pumping end 202 and the filter end 3101, so that fuel flows between the second pumping end 202 and the filter end 3101 through the second connecting member 5. The two-way flow guide structure 4 is assembled to the fifth connecting port 510 and / or the first pump port 2021 of the second pumping end 202, or the six connecting port 520 and / or the filter end 3101. In this way, the two-way flow guide structure 4 is used to control the flow state of the fuel between the second pumping end 202 and the filter end 3101, so that the flow state of the fuel can be adjusted according to the operating state of the pump 2.

[0114] For example, see Figure 8 As shown, in some embodiments of the present application, when the second connecting member 5 is assembled and connected between the pump 2 and the filter 3, the fifth connecting interface 510 is sleeved on the outside of the first pump interface 2021, and a seal is sandwiched between the fifth connecting interface 510 and the first pump interface 2021, thereby improving the sealing between the fifth connecting interface 510 and the first pump interface 2021 to significantly reduce the possibility of fuel leakage. And the sixth connecting interface 520 is sleeved on the outside of the end to be filtered 3101, and a seal is sandwiched between the sixth connecting interface 520 and the end to be filtered 3101, thereby improving the sealing between the fifth connecting interface 510 and the first pump interface 2021 to significantly reduce the possibility of fuel leakage. In addition, as Figure 4As shown, the bidirectional flow-guiding structure 4 is assembled at the filter end 3101, with a portion of the bidirectional flow-guiding structure 4 located within the filter end 3101, and another portion of the bidirectional flow-guiding structure 4 located within the sixth communication port 520. In other words, the bidirectional flow-guiding structure 4 is arranged within the space defined by the sixth communication port 520 and the filter end 3101. Thus, the bidirectional flow-guiding structure 4 coordinates with the operating state of the pumper 2 to control the flow direction of the fuel, thereby achieving the effect of selective unidirectional flow of fuel between the second pumping end 202 and the filter end 3101.

[0115] See Figure 8 and Figure 11 As shown, in some embodiments of the present application, the oil pump 100 may further include a pressure regulating valve 6, which is provided with a pressure regulating interface 61 and a pressure regulating outlet 62. The pressure regulating interface 61 and the pressure regulating outlet 62 can selectively conduct one-way communication, and the pressure regulating interface 61 is used to communicate with the second pumping end 202, and the pressure regulating outlet 62 is used to communicate with the oil storage space 101. In this way, when the pumping device 2 is in the first starting mode and the oil pressure output by the pumping device 2 is greater than the oil pressure required by the internal combustion engine, the pressure regulating interface 61 and the pressure regulating outlet 62 are in a conducting state, so that the fuel can flow from the pressure regulating interface 61 through the pressure regulating valve 6 and return to the oil storage space 101 through the pressure regulating outlet 62. In this way, when the oil pressure output by the pumping device 2 is greater than the oil pressure required by the internal combustion engine, the pressure regulating interface 61 and the pressure regulating outlet 62 are in a conducting state, so that the fuel can return to the oil storage space 101 through the pressure regulating valve 6, thereby achieving the effect of regulating the oil pressure. When the oil pressure output by the pump 2 is less than or equal to the oil pressure required by the internal combustion engine, the pressure regulating interface 61 and the pressure regulating outlet 62 are in a disconnected state, so that the oil pressure output by the pump 2 can reach the oil pressure required by the internal combustion engine.

[0116] Among them, combined Figure 11 As shown, in some embodiments of the present application, the second connecting member 5 is provided with a seventh connecting port 530 that communicates with the fifth connecting port 510. When the second connecting member 5 is assembled with the pressure regulating valve 6, the pressure regulating port 61 is connected to the seventh connecting port 530. Thus, when the oil pressure output by the pumping device 2 is greater than the oil pressure required by the internal combustion engine, the fuel is delivered to the pressure regulating valve 6 through the second connecting member 5 and flows back into the oil storage space 101.

[0117] like Figure 13 As shown, based on the oil pump design described above, embodiments of the present application further provide an oil pump control method. The oil pump may be any of the oil pumps described in the embodiments described above. For ease of illustration, the following embodiments illustrate the method as applied to a vehicle oil pump. It is understood that in other embodiments, the method may also be applied to oil pumps for ships, aircraft, and the like.

[0118] This embodiment illustrates this method using a vehicle controller. It is understood that this method can also be applied to a server, or to a system comprising a vehicle and a server, and implemented through interaction between the vehicle controller and the server. A vehicle controller may include, but is not limited to, an EMS or a central control system (VCU). In this embodiment, the method includes the following steps (hereinafter referred to as S):

[0119] S200 , in response to a first mode switching instruction, controlling the oil pump to stop working, the first mode switching instruction being used to instruct switching the driving mode from the fuel mode to the pure electric mode.

[0120] The first mode switching instruction is an electrical signal that instructs the vehicle's driving mode to switch from fuel mode to pure electric mode. This signal can be initiated by the driver operating the vehicle's central control screen, or it can be automatically issued by the vehicle control unit (VCU) based on conditions such as the battery SOC (State of Charge, also known as the remaining power) and vehicle speed. Taking hybrid vehicles as an example, the driving modes include fuel mode, pure electric mode, hybrid mode, and series mode. Hybrid mode means that the engine and electric motor work at the same time to jointly provide driving force for the vehicle. Series mode means that the engine does not directly drive the wheels, but acts as a generator to charge the battery, and the electric motor is responsible for driving the vehicle. This mode is common in extended-range electric vehicles.

[0121] In specific implementations, a user may select to switch the driving mode from fuel mode to pure electric mode through an in-vehicle selection interface (such as the central control screen). This instruction is transmitted to the vehicle controller, which generates a first mode switch instruction based on the received mode switch request. Subsequently, the vehicle controller, such as the EMS, may send a stop instruction to the fuel pump controller via the CAN bus or other communication methods. Upon receiving the instruction, the fuel pump controller immediately cuts off power to the fuel pump motor, causing the fuel pump to stop operating and thereby releasing line pressure.

[0122] S400: After waiting for a preset period of time, obtain the remaining battery power.

[0123] The preset duration is a pre-set time interval during which the vehicle control system suspends operations to allow the pressure in the oil circuit to gradually stabilize. For example, the remaining battery capacity can be the current state of energy of the vehicle's battery pack, typically expressed as SOC. The remaining capacity is typically provided by the battery management system (BMS).

[0124] In specific implementation, when the oil pump stops working, the vehicle controller starts an internal timer and counts to a preset time. After the timer expires, the vehicle controller sends a request to the BMS through the CAN bus to inquire about the current battery SOC value. The BMS calculates and returns the current remaining battery power to the vehicle controller.

[0125] S600: When the remaining battery power is greater than or equal to the preset power threshold, the oil pump is controlled to perform a reverse operation according to the preset reversal time, sucking the fuel in the fuel line back into the oil storage tank until the fuel amount in the fuel line is less than the preset fuel amount lower limit.

[0126] The fuel line is a fuel delivery pipe connecting the fuel tank to the engine, responsible for delivering fuel to the injectors or other fuel supply points. The power threshold is a pre-set minimum battery power. This power threshold can be used to ensure that when the fuel pump is reversed, there is sufficient power to support the process without affecting the operation of other key systems. In actual applications, taking hybrid vehicles as an example, if the battery power is lower than a certain threshold, such as 10%, the controller will force the engine to start. Starting the engine requires a certain amount of energy, and reversing the fuel pump takes some time to build pressure, which consumes a lot of energy. Therefore, in order to reduce the frequent engine starts when the battery is low, which increases energy consumption and affects the reversal operation of the fuel pump in pure electric mode, it is necessary to first determine whether the power is sufficient.

[0127] The lower fuel limit is a standard value used to determine whether the fuel has been essentially drained, not a requirement for complete and absolute draining (which is physically difficult to achieve). This value can be understood as the maximum volume or mass of fuel allowed to remain in the fuel line after the fuel pump reverses. When the remaining fuel in the fuel line falls below this threshold after the fuel pump reverses and returns the fuel to the tank, the system considers the fuel line to be "approximately empty" and can terminate the reverse operation. Specifically, the lower fuel limit should be calibrated based on the fuel system design of the specific vehicle model. For example, for a small sedan with an estimated fuel line volume of 200 ml, the lower fuel limit can be set to 5 ml or 10 ml.

[0128] Reverse operation refers to the process of reversing the phase sequence of the fuel pump motor to reverse the fuel pump's rotation. The reverse duration controls the duration of the fuel pump's reverse rotation, ensuring that all fuel in the fuel line flows back into the fuel tank. Specifically, the reverse duration can be determined based on factors such as fuel line length and fuel pump power. For example, the reverse duration can be 5, 6, 8, or 10 seconds.

[0129] In specific implementations, the vehicle controller can compare the battery SOC value obtained from the BMS with a preset charge threshold. If the SOC is greater than or equal to the charge threshold, the fuel pump motor's operating phase sequence is adjusted, a reverse command is generated, and the reverse command and duration parameter are sent to the fuel pump controller via the CAN bus. Upon receiving the reverse command, the fuel pump controller executes the reverse operation. A timer is also started to monitor the reverse duration. Once the preset reverse duration is reached, the fuel pump controller automatically stops the reverse operation and notifies the vehicle controller that the operation is complete. At this point, all fuel in the fuel line has been drawn back into the fuel pump's storage tank.

[0130] For example, an oil pump can be driven by a three-phase motor. Specifically, the correct three-phase power sequence is provided to the motor to ensure that the motor rotates in the intended direction. The three-phase power sequence (abbreviated as three-phase sequence) is the order in which AC voltage is applied to the three windings of the motor (usually labeled U, V, and W).

[0131] When the vehicle is in fuel mode, the fuel pump needs to supply fuel normally. At this time, the vehicle controller will power the fuel pump motor (i.e., the pump core) according to the standard three-phase sequence (such as UVW), causing the pump core to rotate in the set direction to ensure that fuel can be smoothly delivered to the engine. When the vehicle's driving mode switches from fuel mode to pure electric mode, the vehicle controller responds to the mode switch command and adjusts the input sequence of the three-phase power supply of the oil pump's pump core, such as swapping any two of the three-phase power supply, such as adjusting the three-phase sequence from UVW to UWV, generating a reversal command containing the new three-phase sequence information, and sending the reversal command to the oil pump controller via the CAN bus. After receiving the reversal command, the oil pump controller reconfigures its internal power electronic components (such as the inverter) to change the actual output sequence of the three-phase power, causing the rotation direction of the pump core to change. After the pump core reverses, negative pressure is generated in the connecting pipe cavity of the oil pump, while positive pressure remains in the filter and pipeline. Under the action of the pressure difference, the valve spring at the non-pressure-maintaining check valve is compressed, causing the valve core to open, and the oil is then sucked back into the fuel tank under the continuous negative pressure generated by the reversal of the oil pump, thereby achieving the reverse oil suction operation of the oil pump. Specifically, during the reversal of the oil pump, the return path of the fuel can be seen in the detailed description of the above-mentioned oil pump embodiment, which will not be repeated here.

[0132] Furthermore, once the fuel pump begins reverse operation, the pump controller monitors the duration of the reverse operation (T1). If the reverse operation reaches a preset duration, such as 10 seconds, the pump controller immediately stops the reverse operation. This not only allows all the fuel in the fuel line to be drawn back into the fuel tank, but also reduces unnecessary wear and other problems caused by excessive operation. Since all the fuel in the fuel line is drawn back into the fuel tank, even if the vehicle collides and the fuel line ruptures, there will be no large-scale fuel leakage, which greatly reduces the possibility of vehicle fire caused by fuel leakage.

[0133] The above-described fuel pump control method allows the fuel pump to adjust the direction of fuel flow based on the operating status of the pumping unit. For example, when the pumping unit switches to standby or reverse mode, the fuel pump can draw fuel from the fuel line back into the fuel tank. Therefore, when the vehicle receives a command to switch from fuel mode to electric mode, the fuel pump is first shut down. After a period of time, if the remaining battery charge exceeds a preset threshold, the fuel pump is controlled to reverse for a preset reverse duration, drawing fuel from the fuel line back into the fuel tank until the fuel level in the fuel line falls below a preset lower limit. Since the fuel line is empty of fuel, even if it ruptures, widespread fuel leakage will not occur, significantly reducing the risk of fire caused by fuel leakage.

[0134] like Figure 14 As shown, in some exemplary embodiments, the method further includes:

[0135] S700 , in response to a second mode switching instruction, controlling the oil pump to start working and monitoring the line pressure of the fuel line, the second mode switching instruction being used to instruct switching the driving mode from the pure electric mode to the fuel mode.

[0136] S720: If the pipeline pressure reaches the target pressure value required for engine starting within the preset time, the engine ignition is controlled to start.

[0137] The second mode switch command is an electrical signal used to instruct the driver to switch from "pure electric mode" to "fuel mode." For example, this signal can be triggered by the driver operating the central control screen, or automatically issued by the vehicle control unit (VCU) based on conditions such as battery SOC and vehicle speed. Line pressure is the pressure of the fuel in the line, typically measured in real time by an oil pressure sensor installed on the fuel rail. Only when the pressure reaches a certain value can the engine reliably ignite and operate.

[0138] In this embodiment, the preset duration is a set time window, which can be calibrated based on factors such as fuel pump pressure and engine power. If the fuel pump can build sufficient fuel pressure within this time, the engine start conditions are considered met. The target pressure value refers to the minimum fuel pressure required for normal engine ignition. The specific value depends on the engine model and design requirements and can be calibrated based on the engine characteristics of a specific vehicle model.

[0139] In specific implementation, if the driver switches the vehicle's driving mode from "pure electric mode" to "fuel mode" via the central control screen, this command is transmitted to the vehicle controller, such as the EMS. Based on the received mode switch request, the vehicle controller generates a second mode switch command. Subsequently, in response to this command, the vehicle controller sends a "start the fuel pump" command to the fuel pump controller via the CAN bus, activating the data acquisition function of the fuel pressure sensor, which continuously monitors the fuel line pressure. Upon receiving the start command, the fuel pump controller controls the motor to start the fuel pump. Simultaneously, the vehicle controller continuously reads the line pressure detected by the fuel pressure sensor, compares it with the target pressure, and determines whether the line pressure reaches the target pressure required for engine starting within a preset time. If the line pressure reaches the target pressure within the preset time, the engine ignition is controlled to start. This may include sequentially controlling the starter motor, injector opening, and ignition coil discharge to complete the engine start. If the line pressure does not reach the target pressure value required for engine starting within the preset time, it indicates that the oil pump may be faulty, or the oil pressure is low and cannot be established normally. Therefore, at this time, a fault message can be pushed and the fault code can be recorded to facilitate subsequent diagnosis and maintenance.

[0140] In this embodiment, before the engine is ignited, it is first checked whether sufficient pressure has been built up in the fuel line to ensure that the injector can supply fuel normally, thereby reducing the problem of the engine failing to start or being damaged due to insufficient fuel supply, or the problem of forced ignition due to the fuel pressure not meeting the requirement, resulting in serious problems such as incomplete combustion, carbon deposits in the cylinder, and even cylinder scuffing.

[0141] like Figure 15 As shown, in some exemplary embodiments, the method further includes:

[0142] S800: In response to the start instruction, a power-on operation is performed, and the oil pump is controlled to be inoperative.

[0143] S820: Obtain the driving mode selected by the user.

[0144] S840: Determine whether the oil pump needs to operate according to the driving mode selected by the user.

[0145] A vehicle start command is triggered by inserting the key, pressing the start button, or through a mobile app. Vehicle power-up is the process of supplying power to the vehicle's high-voltage systems (battery, motor, electronic control) and low-voltage systems (instruments, ECU, lights, etc.).

[0146] In specific implementation, after the driver inserts the key, presses the start button, or chooses to start the vehicle through the mobile phone app, the vehicle controller receives the vehicle start command, then performs self-test and system initialization, and further performs the vehicle power-on operation to wake up the various modules of the vehicle and complete the power switching. At the same time, a "stop" command can be sent to the oil pump controller through the CAN bus, and the oil pump controller cuts off the power supply to the oil pump motor, so that the oil pump is in a shutdown state. During this period, the driver can select the vehicle's driving mode through the central control screen or physical buttons, and the vehicle controller obtains the vehicle's driving mode and decides whether to start the oil pump according to the selected driving mode. For example, if the driver selects the pure electric mode, the oil pump will not be started. If the real fuel mode or hybrid mode is selected, the oil pump will be started and the fuel pressure will be established.

[0147] In this embodiment, the oil pump is not started by default when the vehicle is started, and it only works after receiving the engine start command. This can effectively reduce the possibility of malfunction of the fuel system, improve the safety level, and achieve energy conservation and emission reduction.

[0148] like Figure 16 As shown, in some exemplary embodiments, S840 includes:

[0149] S842: When the driving mode selected by the user is the fuel mode, in response to the engine start instruction, the oil pump is controlled to start working and the line pressure of the fuel line is monitored.

[0150] S844: If the fuel line pressure reaches the target pressure value required for engine starting within a preset time, the engine is controlled to ignite and start.

[0151] Continuing from the previous embodiment, if the user selects the fuel mode, the system generates an engine start command based on the user's operation. Subsequently, the vehicle controller, such as the EMS, responds to the engine start command by sending a "start fuel pump" command to the fuel pump controller, causing the controller to control the fuel pump to begin operating, specifically in forward rotation mode. Simultaneously, the data acquisition function of the oil pressure sensor is activated, and the oil pressure sensor continuously monitors the fuel line pressure. The vehicle controller continuously reads the line pressure detected by the oil pressure sensor, compares it with the target pressure, and determines whether the line pressure reaches the target pressure required for engine start within a preset time. If the line pressure reaches the target pressure within the preset time, the engine ignition is controlled and started. If the line pressure does not reach the target pressure required for engine start within the preset time, this indicates a possible fuel pump failure or low oil pressure, preventing it from building up properly. In this case, a fault message can be sent and a fault code recorded to facilitate subsequent diagnosis and maintenance.

[0152] In this embodiment, before the engine ignition start value is set, it is first detected whether the fuel pipeline has established sufficient pressure to ensure that the injector can supply fuel normally, thereby reducing the occurrence of problems such as engine failure to start or damage due to insufficient fuel supply, or forced ignition due to fuel pressure not meeting the requirements, resulting in serious problems such as incomplete combustion, cylinder carbon deposits and even cylinder scuffing.

[0153] Because vehicles are susceptible to abnormalities and high-risk situations during operation due to the influence of various factors, in some exemplary embodiments, the method further includes: upon detecting a preset fire risk signal, controlling the fuel pump to stop operation and control the fuel pump to perform a reverse operation for a preset reverse duration, thereby sucking fuel in the fuel line back into the fuel storage tank until the fuel level in the fuel line is less than a preset lower fuel level limit.

[0154] A fire risk signal, also known as a high fire risk signal, refers to an abnormal status signal detected by a relevant sensor or control unit during vehicle operation that may cause a vehicle fire. The fire risk signal may be a pre-set signal indicating which types of signals belong to the fire risk signal. In this embodiment, the fire risk signal includes, but is not limited to, a collision signal, a cabin heat accumulation signal, a battery high temperature signal, a battery heat accumulation signal, a battery thermal runaway signal, a high-voltage harness short-circuit signal, and the like. Specifically, the battery high temperature signal, the battery heat accumulation signal, and the battery thermal runaway signal may be sent by the BMS, the cabin heat accumulation signal may be sent by the engine compartment temperature sensor, the collision signal may be sent by a sensor for detecting whether the vehicle has collided, and the high-voltage harness short-circuit signal may be sent by the high-voltage system.

[0155] During vehicle operation, the vehicle controller monitors the status of multiple modules to promptly detect high-risk fire signals. If at least one of the following high-risk fire signals is received, such as a collision signal, cabin heat accumulation signal, battery high temperature signal, battery heat accumulation signal, battery thermal runaway signal, or high-voltage wiring harness short circuit, the vehicle is determined to be at risk of fire. At this point, a "power off + pump stop + reverse" strategy is implemented: first shutting down the engine, stopping the fuel pump, adjusting the operating phase sequence of the fuel pump motor, generating a reverse command, and sending the reverse command and duration parameters to the fuel pump controller via the CAN bus. Upon receiving the reverse command, the fuel pump controller executes the reverse operation. A timer is also started to monitor the reverse duration. Once the preset reverse duration is reached, the fuel pump controller automatically stops the reverse operation and notifies the vehicle controller that the operation is complete. At this point, all the fuel in the fuel line has been sucked back into the fuel pump's storage tank.

[0156] In this embodiment, after receiving the fire risk signal, the oil pump is immediately controlled to stop and a reverse oil suction operation is performed to suck the fuel in the fuel line back into the fuel tank. This can greatly reduce the risk of fire caused by fuel leakage encountering high temperature or sparks, and can also reduce the possibility of secondary accidents.

[0157] In some exemplary embodiments, the method further includes: in response to a fuel system maintenance mode start instruction, controlling the oil pump to perform a reverse operation according to a preset reverse time, sucking the fuel in the fuel line back into the oil storage tank until the fuel amount in the fuel line is less than a preset fuel amount lower limit value.

[0158] The fuel system maintenance mode start command refers to the signal triggered when the user or technician selects "Fuel System Maintenance Mode" on the vehicle's operating interface, such as the central control screen, indicating that maintenance operations on the fuel system are about to be performed.

[0159] In specific implementation, if the user clicks the "Fuel System Maintenance Mode" button on the central control screen, the central control system sends this request to the vehicle controller. In response, the vehicle controller adjusts the operating phase sequence of the fuel pump motor, generates a reverse rotation command, and sends the reverse rotation command and duration parameters to the fuel pump controller via the CAN bus. Upon receiving the reverse rotation command, the fuel pump controller executes the reverse rotation operation. A timer is also started to monitor the reverse rotation duration. Once the preset reverse rotation duration is reached, the fuel pump controller automatically stops the reverse rotation operation and notifies the vehicle controller that the operation is complete. At this point, all fuel in the fuel line has been drawn back into the fuel pump's storage tank. After the fuel pump controller completes the reverse rotation, it returns a "task completed" signal. The vehicle controller then notifies the central control screen to display a message such as "Fuel Drained, Maintenance Available." The event log is also recorded for easy traceability. It is understood that before controlling the fuel pump to reverse the fuel pump, the vehicle controller can determine whether the current vehicle status meets the conditions for entering maintenance mode, such as the vehicle being stationary, the high voltage power supply turned off, the engine not running, and the BMS having no serious faults. If so, the fuel pump is controlled to reverse the fuel pump.

[0160] In this embodiment, the fuel is actively drained before maintenance personnel repair the fuel system, which greatly reduces the risk of fire caused by fuel leakage during the maintenance process and reduces the possibility of injury to maintenance personnel.

[0161] It should be understood that, although the various steps in the flowcharts involved in the various embodiments described above are displayed in sequence according to the instructions of the arrows, these steps are not necessarily performed in sequence in the order indicated by the arrows. Unless clearly stated herein, the execution of these steps is not strictly limited in order, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the various embodiments described above 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, and the execution order of these steps or stages is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of the steps or stages in other steps or other steps. It is understandable that the various steps in different embodiments can be freely combined as needed, and the various non-contradictory schemes formed by the combination all fall within the scope of protection of this application.

[0162] Based on the oil pump provided in the above embodiment, the embodiment of the present application further provides a fuel system, including:

[0163] An oil storage tank, wherein an oil storage cavity is provided in the oil storage tank;

[0164] According to any one of the above oil pump embodiments, the oil pump is mounted on an oil storage tank;

[0165] A fuel line is configured to connect the oil pump to the internal combustion engine.

[0166] The above-mentioned fuel system includes the oil pump with active pressure relief and active oil suction functions described in any of the above-mentioned oil pump embodiments, so that the fuel system can actively suck the fuel in the fuel line back to the fuel tank under certain circumstances, reducing the possibility of large-scale fuel leakage due to rupture of the fuel line, and significantly reducing the risk.

[0167] An embodiment of the present application also provides a vehicle, including a vehicle body, a controller, and a fuel system as described in the above embodiment. The fuel system is assembled on the vehicle body, and the controller is configured to execute the steps of the method described in any one of the above embodiments of the oil pump control method.

[0168] Because the fuel pump in the vehicle's fuel system resolves the conflicting issues of maintaining and releasing pressure, while also enabling active fuel return, when the vehicle is in pure electric mode and the internal combustion engine is shut down, the active pressure release feature can maintain the pressure in the fuel line at a low or normal pressure when the pump is in standby mode. Alternatively, when the pump is in reverse mode, it can actively draw fuel back into the fuel tank, completely emptying the fuel line and reducing the risk of fire due to fuel leakage in abnormal situations such as collisions.

[0169] Based on the same inventive concept, embodiments of the present application also provide an oil pump control device for implementing the aforementioned oil pump 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 oil pump control device embodiments provided below can be found in the above-described limitations of the oil pump control method and will not be further elaborated here.

[0170] In an exemplary embodiment, Figure 17 As shown, an oil pump control device 700 is provided, comprising: a signal response module 710, a power acquisition module 720 and a reverse oil suction control module 730, wherein:

[0171] The signal response module 710 is configured to control the oil pump to stop working in response to a first mode switching instruction, where the first mode switching instruction is configured to instruct the driving mode to be switched from the fuel mode to the pure electric mode.

[0172] The power acquisition module 720 is used to obtain the remaining power of the battery after waiting for a preset time.

[0173] The reverse oil suction control module 730 is used to control the oil pump to perform a reverse operation according to a preset reverse time when the remaining battery power is greater than a preset power threshold, thereby sucking the fuel in the fuel line back into the fuel storage tank until the fuel level in the fuel line is less than a preset fuel level lower limit.

[0174] In some exemplary embodiments, the signal response module 710 is also used to control the oil pump to start working and monitor the line pressure of the fuel line in response to a second mode switching instruction. The second mode switching instruction is used to instruct the driving mode to be switched from a pure electric mode to a fuel mode. If the line pressure reaches the target pressure value required for engine starting within a preset time, the engine ignition is controlled to start.

[0175] In some exemplary embodiments, the signal response module 710 is further configured to respond to a start instruction, execute a power-on operation, control the oil pump to not work, obtain a driving mode selected by the user, and determine whether the oil pump needs to work according to the driving mode selected by the user.

[0176] In some exemplary embodiments, the signal response module 710 is also used to control the oil pump to start working and monitor the line pressure of the fuel line in response to the engine start command when the driving mode selected by the user is the fuel mode. If the line pressure of the fuel line reaches the target pressure value required for engine starting within a preset time, the engine ignition is controlled to start.

[0177] like Figure 18 As shown, in some exemplary embodiments, the device further includes a fault prompt module 740 for pushing fault information if the line pressure of the fuel line does not reach the target pressure value required for engine starting within a preset time.

[0178] In some exemplary embodiments, the device also includes an abnormal signal processing module 750, which is used to control the oil pump to stop working when a preset fire risk signal is detected, and control the oil pump to perform a reverse operation according to a preset reversal time, so as to suck the fuel in the fuel line back to the oil storage tank until the fuel amount in the fuel line is less than the preset fuel amount lower limit.

[0179] In some exemplary embodiments, the device further includes a maintenance processing module 760, which, in response to a fuel system maintenance mode start instruction, controls the oil pump to perform a reverse operation according to a preset reverse time, thereby sucking the fuel in the fuel line back into the oil storage tank until the amount of fuel in the fuel line is less than a preset fuel amount lower limit.

[0180] Each module in the aforementioned oil pump control device 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, so that the processor can call and execute the corresponding operations of each module.

[0181] In an exemplary embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as shown in FIG. Figure 19 As shown. The computer device includes a processor, memory, an input / output interface, a communication interface, a display unit, and an input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are connected to the system bus via the input / output 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 and a computer program. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The input / output 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 wired or wireless means, and the wireless means can be implemented via Wi-Fi, a mobile cellular network, near-field communication (NFC), or other technologies. When executed by the processor, the computer program implements an oil pump control method. The display unit of the computer device is used to form a visually visible image and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device casing, or an external keyboard, touchpad or mouse.

[0182] Those skilled in the art will understand that Figure 19 The structure shown in the figure is only a block diagram of a part 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 component arrangement.

[0183] In an exemplary embodiment, a computer device is provided, including a memory and a processor. The memory stores a computer program, and the processor implements the steps of any one of the above-mentioned oil pump control method embodiments when executing the computer program.

[0184] In an exemplary 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 of any one of the above-mentioned oil pump control method embodiments are implemented.

[0185] In an exemplary embodiment, a computer program product is provided, including a computer program. When the computer program is executed by a processor, the steps of any one of the above-mentioned oil pump control method embodiments are implemented.

[0186] It should be noted that the data involved in this application (including but not limited to data used for analysis, stored data, displayed data, etc.) are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0187] Those skilled in the art will understand 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 embodiments of the above-mentioned methods. 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 memory 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, blockchain-based distributed databases. 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), quantum computing-based data processing logic devices, artificial intelligence (AI) processors, and the like.

[0188] The technical features of the above embodiments can be combined arbitrarily. In order 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 application.

[0189] The above-described embodiments merely represent 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 application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements 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 oil pump, characterized in that: include: An oil storage barrel, wherein the oil storage barrel is provided with an oil storage space; a pumper, the pumper being provided with a pumping channel, a first pumping end of the pumping channel being in communication with the oil storage space; a filter having a filter end and a filtered end in communication, the filtered end being in communication with a fuel line of a fuel system, the filter end and the filtered end being connected in parallel to the second pumping end of the pumping channel; a first valve body and a second valve body, wherein when the first valve body is opened or closed, the pumping channel is connected to or disconnected from the end to be filtered in a one-way manner; and when the second valve body is opened or closed, the filtered end is connected to or disconnected from the pumping channel in a one-way manner; Wherein, when the pump is in standby mode or reverse mode, the first valve body is configured to be in a fully closed state, the second valve body is configured to be in an open state, and the fuel flows from the filtered end to the pumping channel.

2. An oil pump, characterized in that: include: An oil storage barrel, wherein the oil storage barrel is provided with an oil storage space; A pumper, wherein the pumper is provided with a pumping channel, and a first pumping end of the pumping channel is connected to the oil storage space; a filter having a filter end and a filtered end in communication, the filter end in communication with the second pumping end of the pumping passage, and the filtered end in communication with a fuel line of the fuel system; a first one-way valve and a second one-way valve, wherein the first one-way valve and the second one-way valve are assembled at the end to be filtered; Wherein, when the pump is in the shutdown mode or the reverse mode, the first one-way valve is configured to be in a closed state, allowing the fuel to flow from the end to be filtered to the second pumping end, and the second one-way valve is configured to be in an open state, allowing the fuel to flow from the end to be filtered to the second pumping end.

3. A method for controlling an oil pump, characterized in that: The oil pump is the oil pump according to claim 1 or claim 2; the method comprises: In response to a first mode switching instruction, controlling the oil pump to stop working, the first mode switching instruction being used to instruct switching the driving mode from the fuel mode to the pure electric mode; After waiting for a preset time, obtain the remaining battery power; When the remaining power of the battery is greater than or equal to a preset power threshold, the oil pump is controlled to perform a reverse operation according to a preset reversal time, and the fuel in the fuel line is sucked back into the oil storage tank until the fuel amount in the fuel line is less than the preset fuel amount lower limit.

4. The method according to claim 3, characterized in that The method further comprises: In response to a start instruction, performing a power-on operation and controlling the oil pump to be inoperative; Get the driving mode selected by the user; Whether the oil pump needs to work is determined according to the driving mode selected by the user.

5. The method according to claim 4, characterized in that The determining whether the oil pump needs to work according to the driving mode selected by the user includes: When the driving mode selected by the user is the fuel mode, in response to an engine start instruction, controlling the oil pump to start working and monitoring the line pressure of the fuel line; If the line pressure of the fuel line reaches the target pressure value required for engine starting within a preset time, the engine is controlled to ignite and start.

6. The method according to claim 3, characterized in that The method further comprises: In response to a second mode switching instruction, controlling the oil pump to start operation and monitoring the line pressure of the fuel line, wherein the second mode switching instruction is used to instruct to switch the driving mode from the pure electric mode to the fuel mode; If the pipeline pressure reaches the target pressure value required for engine starting within a preset time, the engine is controlled to ignite and start.

7. The method according to claim 5 or 6, characterized in that The method further comprises: If the line pressure of the fuel line does not reach the target pressure value required for engine starting within a preset time, a fault message is pushed.

8. The method according to any one of claims 3 to 6, characterized in that The method further comprises: When a preset fire risk signal is detected, the oil pump is controlled to stop working, and the oil pump is controlled to perform a reverse operation according to a preset reversal time to suck the fuel in the fuel line back into the oil storage tank until the fuel amount in the fuel line is less than the preset fuel amount lower limit.

9. The method according to any one of claims 3 to 6, characterized in that The method further comprises: In response to a fuel system maintenance mode start instruction, the oil pump is controlled to perform a reverse operation according to a preset reverse time, sucking the fuel in the fuel line back into the oil storage tank until the fuel amount in the fuel line is less than a preset fuel amount lower limit value.

10. An oil pump control device, characterized in that: The device comprises: a signal response module, configured to control the oil pump to stop operating in response to a first mode switching instruction, wherein the first mode switching instruction is configured to instruct switching the driving mode from the fuel mode to the pure electric mode; A power acquisition module is used to obtain the remaining power of the battery after waiting for a preset time; The reverse oil suction control module is used to control the oil pump to perform a reverse operation according to a preset reversal time when the remaining power of the battery is greater than a preset power threshold, so as to suck the fuel in the fuel line back into the oil storage tank until the fuel amount in the fuel line is less than a preset fuel amount lower limit.

11. A fuel system, characterized in that: The system comprises: An oil storage tank, wherein an oil storage cavity is provided in the oil storage tank; An oil pump, wherein the oil pump is the oil pump according to claim 1 or 2; A fuel line is configured to connect the oil pump to an internal combustion engine.

12. A vehicle, characterized in that: include: A vehicle body, a controller, and the fuel system according to claim 11, wherein the fuel system is mounted on the vehicle body, and the controller is configured to execute the method according to any one of claims 3 to 9.

13. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 3 to 9 are implemented.

14. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 3 to 9 are implemented.

15. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 3 to 9 are implemented.

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