Control method, system, electronic device and storage medium of lubrication protection system

Abstract

The present application provides a control method, system, electronic device, and storage medium for a lubrication protection system, relating to the field of vehicle engine technology. The control method comprises: obtaining an engine status signal for characterizing the engine status; obtaining the temperature of the vehicle's engine oil; if the engine is not started, determining whether the temperature of the vehicle's engine oil is greater than a preset temperature, and determining whether the vehicle's cab heater switch is on; if the temperature of the vehicle's engine oil is greater than the preset temperature and the vehicle's cab heater switch is on, controlling the lubrication control valve to open a second passage connected to the heater heat exchanger, controlling the pneumatic oil pump to start, and closing a first passage connected to the main oil gallery. This method can recover waste heat from the engine oil and heat the heater air after the engine is normally shut down, when the engine speed is 0, the heater switch in the cab is on, and the oil temperature is high.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle engines, and in particular to a control method, system, electronic equipment and storage medium of a lubrication protection system. Background Art

[0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. It mainly plays the role of lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering.

[0003] As engine thermal efficiency continues to improve, higher demands are placed on the engine lubrication system. An engine anomaly, such as a foreign object stuck in the oil pump or a permanently open safety valve, can cause a sudden drop in system pressure and lubrication failure. If the engine is still running at high speed, system components can quickly become damaged due to excessive wear. The intermediate element of the engine supercharger is lubricated by oil, which also dissipates some heat, ensuring stable operation. After the engine shuts down, the lubrication system quickly stops due to power loss, preventing the supercharger from dissipating heat quickly. This causes the intermediate element to heat up after shutdown. Excessive temperatures can cause the oil in the intermediate element to coke, leading to damage and failure of the supercharger bearings. Furthermore, the cab heater's heat is generated by the engine's water circulation system. When the engine shuts down, this water circulation ceases, and the heater cools down due to a lack of heat source, causing discomfort to the occupants. Summary of the Invention

[0004] The present application provides a control method, system, electronic device and storage medium of a lubrication protection system to solve at least one technical problem existing in the related art.

[0005] According to one aspect of an embodiment of the present application, a control method for a lubrication protection system is provided, wherein the lubrication protection system includes an oil pan, a main oil pump and a main oil channel connected in sequence, and is characterized in that the lubrication protection system also includes a supercharger, a pneumatic oil pump and a lubrication control valve, wherein the supercharger is respectively connected to the oil pan, the lubrication control valve and the main oil channel, and the lubrication control valve is also respectively connected to the pneumatic oil pump, the main oil channel and the warm air heat exchanger; the control method includes: obtaining an engine status signal for characterizing the engine status; obtaining the temperature of the vehicle oil; if the engine is not started, determining whether the temperature of the vehicle oil is greater than a preset temperature, and determining whether the vehicle cab heater switch is turned on; if the temperature of the vehicle oil is greater than the preset temperature and the vehicle cab heater switch is turned on, controlling the lubrication control valve to open the second passage connected to the warm air heat exchanger, controlling the pneumatic oil pump to open, and closing the first passage connected to the main oil channel.

[0006] As an optional embodiment, the control method also includes: if the engine is in the starting state, obtaining the main oil channel pressure; if the main oil channel pressure is greater than a preset pressure value, controlling the lubrication control valve to close the first passage, the second passage and the third passage connected to the supercharger, and controlling the pneumatic oil pump to close, so that the main oil pump draws oil from the oil pan to lubricate the main oil channel.

[0007] As an optional embodiment, the lubrication protection system also includes a high-pressure storage tank connected to the pneumatic oil pump, and a pneumatic oil pump control valve is also provided between the pneumatic oil pump and the high-pressure storage tank, and the high-pressure storage tank is used to provide power to the pneumatic oil pump; the control method also includes: if the main oil channel pressure is less than a preset pressure value, controlling the pneumatic oil pump control valve to open, controlling the lubrication control valve to open the first passage and close the second passage and the third passage, and controlling the pneumatic oil pump and the main oil pump to be in working state.

[0008] As an optional implementation, the control method further includes: acquiring the main oil channel pressure in real time; if the main oil channel pressure is greater than the preset pressure value, reducing the opening of the pneumatic oil pump control valve.

[0009] As an optional implementation, the control method further includes: if the main oil channel pressure is less than the preset pressure value, obtaining the opening of the pneumatic oil pump control valve; if the opening of the pneumatic oil pump control valve reaches the maximum, controlling the engine speed and torque limit.

[0010] As an optional implementation, the control method further includes: if the opening of the pneumatic motor oil pump control valve has not reached a maximum, increasing the opening of the pneumatic motor oil pump control valve.

[0011] As an optional embodiment, the control method also includes: if the engine is in a shut-down state after starting, controlling the lubrication control valve to close the first passage, open the third passage and open the pneumatic oil pump control valve; obtaining the opening time of the third passage; if the opening time of the third passage reaches a preset time, controlling the lubrication control valve to close the third passage.

[0012] According to another aspect of the embodiment of the present application, a lubrication protection system is also provided, comprising an oil pan, a main oil pump and a main oil channel connected in sequence, and also comprising a supercharger, a pneumatic oil pump and a lubrication control valve, wherein the supercharger is respectively connected to the oil pan, the lubrication control valve and the main oil channel, and the lubrication control valve is also respectively connected to the pneumatic oil pump, the main oil channel and the warm air heat exchanger; further comprising: an engine status signal acquisition module for acquiring an engine status signal for characterizing the engine status; an oil temperature acquisition module for acquiring the temperature of the vehicle oil; an oil temperature judgment module for judging whether the temperature of the vehicle oil is greater than a preset temperature if the engine is not started; a warm air switch judgment module for judging whether the vehicle cab warm air switch is turned on; a lubrication control valve control module for controlling the lubrication control valve to open the second passage connected to the warm air heat exchanger, control the pneumatic oil pump to open, and close the first passage connected to the main oil channel if the temperature of the vehicle oil is greater than the preset temperature and the vehicle cab warm air switch is turned on.

[0013] According to another aspect of the embodiment of the present application, an electronic device is provided, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus, and the memory is used to store a computer program; and the processor is used to execute the control method steps of the lubrication protection system by running the computer program stored in the memory.

[0014] According to another aspect of the embodiments of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is configured to execute the control method steps of the lubrication protection system when running.

[0015] 1. In an embodiment of the present application, a control method for a lubrication protection system is provided, comprising: when the temperature of the vehicle oil is greater than the preset temperature and the vehicle cab heater switch is turned on, controlling the lubrication control valve to open the second passage connected to the heater heat exchanger and closing the first passage connected to the main oil channel. This method recovers the waste heat of the oil and heats the heater when the engine speed is 0 and the heater switch in the cab is turned on, and the oil temperature is relatively high after the engine is normally shut down. That is, when the oil temperature is greater than the preset temperature, it is considered that the oil temperature is relatively high and can be used for heater heating. This solves the technical problem in the prior art that the heat for the heater in the cab comes from the engine water circulation, the water circulation stops after the engine is shut down, and the heater cools down due to the lack of a heat source, causing discomfort to the occupants.

[0016] 2. As an optional embodiment, the control method further includes: if the main oil channel pressure is less than a preset pressure value, controlling the pneumatic oil pump control valve to open, controlling the lubrication control valve to open the first passage and close the second and third passages, and controlling both the pneumatic oil pump and the main oil pump to operate. In other words, if the main oil channel pressure falls below the preset pressure value, the oil pressure is considered abnormal, and the pneumatic oil pump is activated to assist the main oil pump in protecting the lubrication system. This, to a certain extent, addresses the problem of sudden system pressure drops and lubrication failure caused by engine anomalies, such as foreign matter stuck in the oil pump or a permanently open safety valve.

[0017] 3. As an optional embodiment, the control method further includes: if the engine is in the shutdown state after startup, controlling the lubrication control valve to open the third passage and the pneumatic oil pump control valve; and controlling the lubrication control valve to close the first and third passages when the opening duration of the third passage reaches a preset duration. Specifically, after a normal engine shutdown, the engine speed is zero. At this time, delayed lubrication protection for the supercharger is activated, and oil is drawn from the oil sump 1 by the pneumatic oil pump 12. At this time, the lubrication control valve closes the first passage and opens the third passage to the supercharger, allowing oil to enter the supercharger. After shutdown, the supercharger temperature can be reduced to a reasonable level within the opening duration. Therefore, the supercharger lubrication oil circuit is disconnected after the opening duration has expired. Specifically, the lubrication control valve is controlled to close the first and third passages when the opening duration of the third passage reaches a preset duration. This, to a certain extent, addresses the problem of the lubrication system rapidly ceasing flow due to power loss after engine shutdown, preventing the supercharger's heat from being dissipated in a timely manner, resulting in an increase in the temperature of the intermediate body after shutdown. If the temperature is too high, the oil in the intermediate body may coke, which may lead to technical problems such as damage and failure of the supercharger bearing.

[0018] 4. As an optional implementation, the lubrication protection system further includes a high-pressure storage tank connected to the pneumatic oil pump, thereby realizing power output to the pneumatic oil pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1This is a flow chart of an optional control method for a lubrication protection system provided in accordance with an embodiment of the present application;

[0022] Figure 2 is a schematic structural diagram of an optional lubrication protection system provided according to an embodiment of the present application;

[0023] Figure 3 This is a structural block diagram of an optional electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] As engine thermal efficiency continues to improve, higher demands are placed on the engine lubrication system. An engine anomaly, such as a foreign object stuck in the oil pump or a permanently open safety valve, can cause a sudden drop in system pressure and lubrication failure. If the engine is still running at high speed, system components can quickly become damaged due to excessive wear. The intermediate element of the engine supercharger is lubricated by oil, which also dissipates some heat, ensuring stable operation. After the engine shuts down, the lubrication system quickly stops due to power loss, preventing the supercharger from dissipating heat quickly. This causes the intermediate element to heat up after shutdown. Excessive temperatures can cause the oil in the intermediate element to coke, leading to damage and failure of the supercharger bearings. Furthermore, the cab heater's heat is generated by the engine's water circulation system. When the engine shuts down, this water circulation ceases, and the heater cools down due to a lack of heat source, causing discomfort to the occupants.

[0027] Therefore, if Figure 1 As shown, an embodiment of the present application provides a control method for a lubrication protection system, wherein the lubrication protection system includes an oil pan, a main engine oil pump, and a main oil gallery connected in sequence, and further includes a supercharger, a pneumatic engine oil pump, and a lubrication control valve, wherein the supercharger is connected to the oil pan, the lubrication control valve, and the main oil gallery, respectively, and the lubrication control valve is further connected to the pneumatic engine oil pump, the main oil gallery, and a warm air heat exchanger, respectively;

[0028] The control method includes:

[0029] S101: Acquiring an engine status signal for representing an engine status;

[0030] S102 obtains the temperature of the vehicle's engine oil;

[0031] S103: If the engine is not started, determining whether the temperature of the vehicle oil is greater than a preset temperature, and determining whether the vehicle cab heater switch is turned on;

[0032] S104: If the temperature of the vehicle oil is greater than the preset temperature and the vehicle cab heater switch is turned on, the lubrication control valve is controlled to open the second passage connected to the heater heat exchanger, the pneumatic oil pump is controlled to open, and the first passage connected to the main oil channel is closed.

[0033] Specifically, the lubrication system includes two oil pumps: the main oil pump is used during normal engine operation, and the pneumatic oil pump is used when the engine oil pressure is abnormal or the engine is shut down. After a normal engine shutdown, the engine speed is zero. If the in-cabin heater is on and the oil temperature is high, the oil's residual heat is recovered and used to heat the warm air. The oil path is as follows: the pneumatic oil pump draws oil from the oil sump. At this point, the lubrication control valve closes the oil path to the main oil gallery (the first path) and opens the oil path to the warm air heat exchanger (the second path), allowing the oil to enter the warm air heat exchanger. This method recovers the oil's residual heat and uses it to heat the warm air after a normal engine shutdown, when the engine speed is zero, the in-cabin heater is on, and the oil temperature is high. Specifically, when the oil temperature is greater than a preset temperature, the oil is considered high enough to be used for warm air heating. This solves the technical problem in the prior art where the heat for the warm air in the cab comes from the engine's water circulation. After the engine is shut down, the water circulation ceases, and the warm air cools due to the lack of a heat source, causing discomfort to the occupants.

[0034] It should be noted that if Figure 1As shown, an oil filter may also be installed between the lubrication control valve and the pneumatic oil pump. Furthermore, an oil temperature sensor may be installed within the oil pan to measure the oil temperature. This application does not limit the specific type of engine status signal used to characterize the engine status; the engine status can be determined by obtaining information such as engine speed and throttle opening.

[0035] As an optional embodiment, the control method also includes: if the engine is in the starting state, obtaining the main oil channel pressure; if the main oil channel pressure is greater than a preset pressure value, controlling the lubrication control valve to close the first passage, the second passage and the third passage connected to the supercharger, and controlling the pneumatic oil pump to close, so that the main oil pump draws oil from the oil pan to lubricate the main oil channel.

[0036] That is, when the engine is operating normally and the main oil gallery pressure is normal, the main oil pump operates normally, drawing oil from the oil pan and delivering it to the main oil gallery. During normal engine operation, the lubricating oil flow path is as follows: The main oil pump draws oil from the oil pan, passes through the oil cooling filter, and enters the main oil gallery. The oil then flows to the piston cooling nozzles, bearings, gears, accessories, and the supercharger, lubricating each component before returning to the oil pan. A pressure limiting valve is located between the main oil pump and the oil cooler filter. If the oil pressure in the main oil gallery becomes excessive, the valve opens to drain oil, maintaining a reasonable pressure within the gallery.

[0037] Among them: bearings mainly refer to main bearings, connecting rod bearings, cam bearings, rocker arm bearings and other bearing parts; gears mainly refer to various idler gears in the gear transmission system; accessories mainly refer to parts other than superchargers that require oil lubrication, such as fuel pumps, air compressors, active oil-gas separators, centrifugal filters, etc.

[0038] As an optional embodiment, the lubrication protection system also includes a high-pressure storage tank connected to the pneumatic oil pump, and a pneumatic oil pump control valve is also provided between the pneumatic oil pump and the high-pressure storage tank, and the high-pressure storage tank is used to provide power to the pneumatic oil pump; the control method also includes: if the main oil channel pressure is less than a preset pressure value, controlling the pneumatic oil pump control valve to open, controlling the lubrication control valve to open the first passage and close the second passage and the third passage, and controlling the pneumatic oil pump and the main oil pump to be in working state.

[0039] When the main oil channel pressure falls below a preset value, it is considered abnormal. The pneumatic oil pump is activated, the first passage is opened, and the pneumatic oil pump control valve is simultaneously opened, allowing high-pressure gas to enter the pneumatic oil pump, causing it to operate. The pneumatic oil pump then cooperates with the main oil pump to provide lubrication power for the entire lubrication system. The addition of the pneumatic oil pump increases the main oil channel pressure. The high-pressure storage tank connected to the pneumatic oil pump provides power output to the pneumatic oil pump.

[0040] It should be understood that the power of the pneumatic oil pump comes from the high-pressure gas in the high-pressure gas storage tank. When the pneumatic oil pump is working, the pneumatic oil pump control valve opens. A gas pressure sensor can also be provided between the pneumatic oil pump and the high-pressure storage tank. The high-pressure gas in the high-pressure gas storage tank flows into the pneumatic oil pump after passing through the gas pressure sensor, and drives the pneumatic oil pump to work. After the gas pressure is reduced, it is discharged from the pneumatic oil pump. The gas storage tank is also connected to the air compressor on the engine, and the gas in the tank is automatically replenished when the engine is running normally. In the compressed air system of common vehicles, if the high-pressure gas storage tank reaches the upper pressure limit, it will automatically exhaust. After that, the air compressor will continue to run with the engine and will not interrupt work to save fuel. Therefore, although the pneumatic oil pump consumes the high-pressure gas in the gas storage tank, it has little effect on the working state of the air compressor, and thus has no effect on the thermal efficiency of the engine.

[0041] After the engine is shut down, the gas pressure in the high-pressure gas tank decreases as the pneumatic oil pump is used. At this time, the minimum gas pressure value can be set. If the gas pressure measured by the gas pressure sensor is lower than the minimum gas pressure value, it proves that the gas stored in the high-pressure gas tank is not enough to maintain the normal operation of the pneumatic oil pump. At this time, all related control programs should be terminated and the pneumatic oil pump should stop running.

[0042] As an optional implementation, the control method further includes: acquiring the main oil channel pressure in real time; if the main oil channel pressure is greater than the preset pressure value, reducing the opening of the pneumatic oil pump control valve.

[0043] Specifically, if the main oil channel pressure is less than the preset pressure value, the pneumatic motor oil pump control valve is controlled to open, the lubrication control valve is controlled to open the first passage and close the second passage and the third passage, and the pneumatic motor oil pump and the main engine oil pump are controlled to be in working state, the main oil channel pressure is obtained in real time. If the main oil channel pressure is greater than the preset pressure value, it indicates that the main oil channel pressure has returned to normal and exceeded the preset pressure value. At this time, the opening of the pneumatic motor oil pump control valve is reduced.

[0044] As an optional implementation, the control method further includes: if the main oil channel pressure is less than the preset pressure value, obtaining the opening of the pneumatic oil pump control valve; if the opening of the pneumatic oil pump control valve reaches the maximum, controlling the engine speed and torque limit.

[0045] As an optional implementation, the control method further includes: if the opening of the pneumatic motor oil pump control valve has not reached a maximum, increasing the opening of the pneumatic motor oil pump control valve.

[0046] It can be understood that if the main oil channel pressure is less than the preset pressure value, the pneumatic motor oil pump control valve is controlled to open, the lubrication control valve is controlled to open the first passage and close the second passage and the third passage, and the pneumatic motor oil pump and the main oil pump are controlled to be in working state, the main oil channel pressure is still less than the preset pressure value, indicating that the pressure provided by the pneumatic motor oil pump still does not meet the required pressure of the main oil channel. At this time, the opening of the pneumatic motor oil pump control valve is obtained. If the opening of the pneumatic motor oil pump control valve has not reached the maximum, the opening of the pneumatic motor oil pump control valve is increased; if the opening of the pneumatic motor oil pump control valve reaches the maximum, it means that the pressure has reached the maximum value. At this time, the engine speed and torque are controlled to limit to avoid failure due to insufficient pressure in the main oil channel.

[0047] As an optional embodiment, the control method also includes: if the engine is in a shut-down state after starting, controlling the lubrication control valve to close the first passage, open the third passage and open the pneumatic oil pump control valve; obtaining the opening time of the third passage; if the opening time of the third passage reaches a preset time, controlling the lubrication control valve to close the third passage.

[0048] If the engine is in the shutdown state after startup, the lubrication control valve is controlled to open the lubrication oil circuit to the supercharger, i.e., the third passage is opened to continue supplying lubricating oil to the main oil gallery. After the engine is shut down, the lubrication system quickly stops flowing due to loss of power, and the heat of the supercharger cannot be dissipated in time, resulting in an increase in the temperature of the intermediate body after shutdown. Therefore, to provide delayed lubrication protection for the supercharger, a delayed lubrication protection time (i.e., an activation time) is set. After shutdown, the supercharger temperature can be reduced to a reasonable level within the activation time. After the activation time is reached, the supercharger lubrication circuit is shut off.

[0049] Specifically, after a normal engine shutdown, the engine speed reaches zero, and delayed lubrication protection for the supercharger is activated. The corresponding oil path is as follows: the oil is drawn from the oil pan by the pneumatic oil pump and passes through the oil filter. At this point, the lubrication control valve closes the oil path to the main oil gallery and opens the oil path to the supercharger, allowing the oil to enter the supercharger.

[0050] In addition, after the engine is shut down, the following pneumatic oil pump control method is also included:

[0051] After the engine is shut down, the lubrication control valve is controlled to close the lubrication oil circuit leading to the main oil channel. The lubrication oil circuit leading to the supercharger and heater heat exchanger, i.e., the second and third circuits, can be opened and closed in various different states. For example, after the engine is shut down, the pneumatic oil pump is operating, the pneumatic oil pump control valve is fully open, and high-pressure gas enters the pneumatic oil pump to activate it. A second preset pressure value exists behind the pneumatic oil pump control valve. It should be noted that this second preset pressure value is not a fixed value and can vary depending on the different opening and closing states of the lubrication control valve. This is not limited in this application. The gas pressure measured by the gas pressure sensor is collected. If the gas pressure is less than the second pressure preset value and greater than the minimum gas pressure value, it is determined whether the opening of the pneumatic motor oil pump control valve has reached the maximum value. If it has not reached the maximum value, the opening of the pneumatic motor oil pump control valve is controlled to increase; if the gas pressure is greater than the second pressure preset value, the opening of the pneumatic motor oil pump control valve is reduced to reduce the gas pressure, thereby reducing the speed of the pneumatic motor oil pump. Thereafter, the opening of the pneumatic motor oil pump control valve is determined. If the opening is 0, it proves that the lubrication control valve has been switched to a fully closed state at this time, and the pneumatic motor oil pump is controlled to stop working, and the control program ends; if the gas pressure is less than the minimum gas pressure value, the control program ends directly.

[0052] According to another aspect of an embodiment of the present application, a lubrication protection system is provided, comprising an oil pan, a main engine oil pump, and a main oil gallery connected in sequence, a supercharger, an air motor oil pump, and a lubrication control valve, wherein the supercharger is respectively connected to the oil pan, the lubrication control valve, and the main oil gallery, and the lubrication control valve is further respectively connected to the air motor oil pump, the main oil gallery, and a warm air heat exchanger; and further comprising:

[0053] An engine status signal acquisition module, used to acquire an engine status signal for representing an engine status;

[0054] The engine oil temperature acquisition module is used to obtain the temperature of the vehicle's engine oil;

[0055] an oil temperature determination module, configured to determine whether the temperature of the vehicle oil is greater than a preset temperature if the engine is not started;

[0056] A heater switch judgment module is used to judge whether the vehicle cab heater switch is turned on;

[0057] The lubrication control valve control module is used to control the lubrication control valve to open the second passage connected to the heater heat exchanger, control the pneumatic oil pump to open, and close the first passage connected to the main oil channel if the temperature of the vehicle oil is greater than the preset temperature and the vehicle cab heater switch is turned on.

[0058] Figure 3 is a structural block diagram of an optional electronic device according to an embodiment of the present application, such as Figure 3 As shown, it includes a processor 202, a communication interface 204, a memory 206 and a communication bus 208, wherein the processor 202, the communication interface 204 and the memory 206 communicate with each other through the communication bus 208, wherein,

[0059] Memory 206, for storing computer programs;

[0060] The processor 202 is configured to execute the computer program stored in the memory 206 to implement the following steps:

[0061] Acquiring an engine status signal for representing an engine status;

[0062] Get the temperature of the vehicle's engine oil;

[0063] If the engine is not started, determining whether the temperature of the vehicle oil is greater than a preset temperature, and determining whether the vehicle cab heater switch is turned on;

[0064] If the temperature of the vehicle oil is greater than the preset temperature and the vehicle cab heater switch is turned on, the lubrication control valve is controlled to open the second passage connected to the heater heat exchanger, the pneumatic oil pump is controlled to open, and the first passage connected to the main oil channel is closed.

[0065] According to another aspect of the embodiments of the present application, an electronic device for a control method of a lubrication protection system is also provided. The electronic device may be a server, a terminal, or a combination thereof.

[0066] The communication interface is used for communication between the above electronic device and other devices.

[0067] The memory may include RAM, or may include non-volatile memory, such as at least one disk memory. Alternatively, the memory may also be at least one storage device located away from the aforementioned processor.

[0068] It may also include but is not limited to other module units in the above-mentioned lubrication protection system, which will not be described in detail in this example.

[0069] According to another aspect of the embodiment of the present application, a storage medium is further provided. Optionally, in this embodiment, the storage medium can be used to execute program codes of the control method of the lubrication protection system.

[0070] Optionally, in this embodiment, the above-mentioned storage medium may be located on at least one network device among the multiple network devices in the network shown in the above-mentioned embodiment.

[0071] Optionally, in this embodiment, the storage medium is configured to store program codes for executing the following steps:

[0072] Acquiring an engine status signal for representing an engine status;

[0073] Get the temperature of the vehicle's engine oil;

[0074] If the engine is not started, determining whether the temperature of the vehicle oil is greater than a preset temperature, and determining whether the vehicle cab heater switch is turned on;

[0075] If the temperature of the vehicle oil is greater than the preset temperature and the vehicle cab heater switch is turned on, the lubrication control valve is controlled to open the second passage connected to the heater heat exchanger, the pneumatic oil pump is controlled to open, and the first passage connected to the main oil channel is closed.

[0076] For specific examples in this embodiment, reference can be made to the examples described in the above embodiments, which will not be described in detail in this embodiment.

[0077] Optionally, in this embodiment, the storage medium may include, but is not limited to, various media that can store program codes, such as a USB flash drive, a ROM, a RAM, a mobile hard disk, a magnetic disk, or an optical disk.

[0078] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0079] If the integrated units in the above embodiments are implemented in the form of software functional units and sold or used as independent products, they can be stored in the above-mentioned computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling one or more electronic devices (which may be personal computers, servers, or network devices, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application.

[0080] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0081] In the several embodiments provided in this application, it should be understood that the disclosed client can be implemented in other ways. Among them, the device embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, and can be electrical or other forms.

[0082] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected based on actual needs to achieve the purpose of the solution provided in this embodiment.

[0083] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0084] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0085] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A control method for a lubrication protection system, wherein the lubrication protection system comprises an oil pan, a main oil pump, and a main oil gallery connected in sequence, characterized in that: The lubrication protection system further includes a supercharger, a pneumatic oil pump and a lubrication control valve, wherein the supercharger is connected to the oil pan, the lubrication control valve and the main oil gallery respectively, and the lubrication control valve is further connected to the pneumatic oil pump, the main oil gallery and the warm air heat exchanger respectively; The control method includes: Acquiring an engine status signal for representing an engine status; Get the temperature of the vehicle's engine oil; If the engine is not started, determining whether the temperature of the vehicle oil is greater than a preset temperature, and determining whether the vehicle cab heater switch is turned on; If the temperature of the vehicle oil is greater than the preset temperature and the vehicle cab heater switch is turned on, the lubrication control valve is controlled to open the second passage connected to the heater heat exchanger, the pneumatic oil pump is controlled to start, and the first passage connected to the main oil channel is closed.

2. The control method of the lubrication protection system according to claim 1, characterized in that: The control method further includes: If the engine is in a started state, obtaining the main oil channel pressure; If the pressure in the main oil channel is greater than a preset pressure value, the lubrication control valve is controlled to close the first passage, the second passage and the third passage connected to the supercharger, and the pneumatic engine oil pump is controlled to be closed, so that the main engine oil pump draws oil from the oil pan to lubricate the main oil channel.

3. The control method of the lubrication protection system according to claim 2, characterized in that: The lubrication protection system further includes a high-pressure storage tank connected to the pneumatic oil pump, a pneumatic oil pump control valve is further provided between the pneumatic oil pump and the high-pressure storage tank, and the high-pressure storage tank is used to provide power to the pneumatic oil pump; the control method further includes: If the pressure of the main oil channel is lower than the preset pressure value, the pneumatic motor oil pump control valve is controlled to open, the lubrication control valve is controlled to open the first passage and close the second passage and the third passage, and the pneumatic motor oil pump and the main engine oil pump are controlled to be in working state.

4. The control method of the lubrication protection system according to claim 3, characterized in that: The control method further includes: obtaining the main oil channel pressure in real time; If the pressure of the main oil channel is greater than the preset pressure value, the opening of the pneumatic motor oil pump control valve is reduced.

5. The control method of the lubrication protection system according to claim 4, characterized in that: The control method further includes: If the main oil channel pressure is less than the preset pressure value, obtaining the opening of the pneumatic motor oil pump control valve; If the opening of the pneumatic motor oil pump control valve reaches the maximum, the engine is controlled to limit speed and torque.

6. The control method of the lubrication protection system according to claim 5, characterized in that: The control method further includes: If the opening of the pneumatic motor oil pump control valve has not reached the maximum, increase the opening of the pneumatic motor oil pump control valve.

7. The control method of the lubrication protection system according to claim 3, characterized in that: The control method further includes: If the engine is in a shutdown state after starting, controlling the lubrication control valve to close the first passage, open the third passage, and open the pneumatic motor oil pump control valve; Obtaining the opening duration of the third channel; If the opening time of the third passage reaches a preset time, the lubrication control valve is controlled to close the third passage.

8. A lubrication protection system, comprising an oil pan, a main oil pump and a main oil channel connected in sequence, characterized in that: It also includes a supercharger, a pneumatic oil pump and a lubrication control valve, wherein the supercharger is connected to the oil pan, the lubrication control valve and the main oil channel respectively, and the lubrication control valve is also connected to the pneumatic oil pump, the main oil channel and the warm air heat exchanger respectively; and further includes: An engine status signal acquisition module, used to acquire an engine status signal for representing an engine status; The oil temperature acquisition module is used to obtain the temperature of the vehicle oil; an oil temperature determination module, configured to determine whether the temperature of the vehicle oil is greater than a preset temperature if the engine is not started; A heater switch judgment module is used to judge whether the vehicle cab heater switch is turned on; The lubrication control valve control module is used to control the lubrication control valve to open the second passage connected to the heater heat exchanger, control the pneumatic oil pump to open, and close the first passage connected to the main oil channel if the temperature of the vehicle oil is greater than the preset temperature and the vehicle cab heater switch is turned on.

9. An electronic device comprising a processor, a communication interface, a memory and a communication bus, wherein: The processor, the communication interface and the memory communicate with each other via the communication bus, wherein: The memory is used to store computer programs; The processor is configured to execute the control method steps of the lubrication protection system according to any one of claims 1 to 7 by running the computer program stored in the memory.

10. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, wherein the computer program is configured to execute the steps of the control method of the lubrication protection system according to any one of claims 1 to 7 when running.

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