Control method, device and equipment for electrically driven oil-gas separator

Abstract

The invention relates to the technical field of machine control, and provides a control method, device and equipment for an electrically-driven oil-gas separator. The method comprises the steps that after an engine is powered on, working state information of the engine is obtained through an engine control unit; the engine control unit determines the operation rotating speed of the electric drive oil-gas separator according to the working state information and generates control information of the electric drive oil-gas separator according to the operation rotating speed; the engine control unit sends the control information to the electric drive control unit, and the rotating speed of an impeller of a motor of the electric drive oil-gas separator is controlled through the electric drive control unit. The defect that in the prior art, the oil-gas separation efficiency is not high, and consequently pollutant emission is too high is overcome, the rotating speed of the electric drive oil-gas separator is intelligently adjusted and controlled based on the working state of the engine, and therefore the aim of improving the separation efficiency is achieved.

Description

Technical Field

[0001] The present invention relates to the field of machine control technology, and in particular to a control method, device and equipment for an electrically driven oil-gas separator. Background Art

[0002] As the main power source of modern transportation and mechanical equipment, the performance and efficiency of the engine are directly related to the operating stability and economy of the entire system. During the operation of the engine, the gas in the combustion chamber will enter the crankcase through the gap between the piston ring and the cylinder, forming the so-called "blow-by gas". These blow-by gases contain unburned fuel, water vapor, lubricating oil and other pollutants. If they are not effectively handled, they will not only increase the pressure in the crankcase, but also cause lubricating oil dilution, pollute the environment and affect the service life of the engine. Therefore, the design and optimization of the crankcase ventilation system is particularly important.

[0003] At present, the industry's commonly used solutions to engine crankcase ventilation problems include labyrinth oil-gas separators, impact oil-gas separators, and oil-drive oil-gas separators. Although labyrinth and impact oil-gas separators are simple in structure and low in cost, their separation efficiency is limited and it is difficult to meet the increasingly stringent emission regulations. Although the oil-drive oil-gas separator has a relatively high separation efficiency, its working effect is greatly affected by the oil pressure, especially during the startup and low-speed operation stages. Insufficient oil pressure will lead to a low separation speed, which in turn affects the separation effect.

[0004] With the implementation of some emission regulations, the control requirements for engine emission pollutants are becoming more and more stringent. In order to meet this challenge, a new solution, the electric-driven oil-gas separator, has emerged in recent years. The electric-driven oil-gas separator achieves oil-gas separation by driving the valve plate with a motor, and its separation efficiency and stability are better than those of traditional oil-gas separators. However, achieving the best separation effect and energy saving and consumption reduction are still important issues facing the industry. Summary of the invention

[0005] The present invention provides a control method, device and equipment for an electric-driven oil-gas separator, which are used to solve the defect of low oil-gas separation efficiency in the prior art leading to excessive pollutant emissions, and realize the goal of intelligently controlling the speed of the electric-driven oil-gas separator based on the working state of the engine, thereby improving the separation efficiency.

[0006] The present invention provides a control method for an electric-driven oil-gas separator, comprising the following steps: When the engine is powered on, the engine operating status information is obtained through the engine control unit; The engine control unit determines the operating speed of the electric-driven oil-gas separator according to the working state information, and generates control information of the electric-driven oil-gas separator according to the operating speed; The engine control unit will send the control information to the electric drive control unit, and the electric drive control unit will control the impeller speed of the motor of the electric drive oil-gas separator.

[0007] According to a control method for an electric-driven oil-gas separator provided by the present invention, the working status information includes engine speed information; determining the operating speed of the electric-driven oil-gas separator based on the working status information specifically includes: judging a threshold interval where the engine speed information is located, triggering a corresponding operating mode of the electric-driven oil-gas separator according to the threshold interval, and determining the operating speed of the electric-driven oil-gas separator.

[0008] According to a control method for an electric-driven oil-gas separator provided by the present invention, the working status information includes the actual torque percentage of the engine; the threshold interval in which the engine speed information is determined, the corresponding operating mode of the electric-driven oil-gas separator is triggered according to the threshold interval, and the operating speed of the electric-driven oil-gas separator is determined, specifically including: when it is determined that the engine speed information is greater than a first preset threshold and not greater than a second preset threshold, determining the percentage interval in which the actual torque percentage of the engine is located; when the actual torque percentage of the engine is within the first percentage interval, determining that the operating speed of the electric-driven oil-gas separator is a first speed; when the actual torque percentage of the engine is within the second percentage interval, determining that the operating speed of the electric-driven oil-gas separator is a second speed; when the actual torque percentage of the engine is within the third percentage interval, determining that the operating speed of the electric-driven oil-gas separator is a third speed; when the actual torque percentage of the engine is within the fourth percentage interval, determining that the operating speed of the electric-driven oil-gas separator is a fourth speed.

[0009] According to a control method for an electric-driven oil-gas separator provided by the present invention, the working status information includes the actual torque percentage of the engine; the threshold interval of judging the engine speed information, triggering the corresponding operation mode of the electric-driven oil-gas separator according to the threshold interval, and determining the operation speed of the electric-driven oil-gas separator, specifically includes: when it is determined that the engine speed information is greater than a second preset threshold value and not greater than a third preset threshold value, judging the percentage interval where the actual torque percentage of the engine is located; when the actual torque percentage of the engine is within the first percentage interval, determining that the operation speed of the electric-driven oil-gas separator is a fifth speed; when the actual torque percentage of the engine is within the second percentage interval, determining that the operation speed of the electric-driven oil-gas separator is a sixth speed; when the actual torque percentage of the engine is within the third percentage interval, determining that the operation speed of the electric-driven oil-gas separator is a seventh speed; when the actual torque percentage of the engine is within the fourth percentage interval, determining that the operation speed of the electric-driven oil-gas separator is an eighth speed.

[0010] According to a control method for an electric-driven oil-gas separator provided by the present invention, after the engine is powered on, the method further includes: if the working status information of the engine is not obtained within the first preset time after the initialization of the electric-driven oil-gas separator is completed, reporting a communication fault; if the impeller speed of the motor of the electric-driven oil-gas separator controlled according to the control information does not reach the preset speed, reporting a communication fault.

[0011] According to a control method for an electric-driven oil-gas separator provided by the present invention, after generating control information of a control unit of the electric-driven oil-gas separator, the method further includes: when a communication failure occurs in a controller area network of the entire system and the electric-driven oil-gas separator does not receive control information from the engine, the electric-driven control unit controls the electric-driven oil-gas separator to automatically run at a ninth speed for a second preset time and reports a controller area network timeout failure to the engine control unit.

[0012] The present invention also provides a control device for an electrically driven oil-gas separator, comprising: The engine control unit is used to obtain the working state information of the engine after the engine is powered on; determine the operating speed of the electric-driven oil-gas separator according to the working state information, generate control information of the electric-driven oil-gas separator according to the operating speed; and send the control information to the electric-driven control unit; The electric drive control unit is used to control the impeller speed of the motor of the electric drive oil-gas separator.

[0013] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, a control method for an electrically driven oil-gas separator as described above is implemented.

[0014] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the control method of the electric-driven oil-gas separator as described in any one of the above is implemented.

[0015] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the control method of the electric-driven oil-gas separator as described above is implemented.

[0016] The present invention provides a control method, device and equipment for an electric-driven oil-gas separator, which obtain engine working status information through an engine control unit, determine the operating speed of the electric-driven oil-gas separator, and generate corresponding control information, and then control the motor impeller speed of the electric-driven oil-gas separator through the electric-driven control unit, thereby realizing intelligent control of the electric-driven oil-gas separator, thereby effectively reducing the emission of crankcase pollutants and facilitating the control of pollutants of the entire machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a flow chart of the control method of the electric-driven oil-gas separator provided by the present invention.

[0019] Figure 2 It is a structural schematic diagram of the control device of the electric-driven oil-gas separator provided by the present invention.

[0020] Figure 3 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Although the electric-driven oil-gas separator has excellent performance in separation efficiency and stability, there are still some shortcomings in the existing technology. On the one hand, the traditional electric-driven oil-gas separator control method is often based on a single parameter (such as crankcase pressure) for closed-loop control, which has a large hysteresis and is difficult to achieve precise control of the engine under all working conditions; on the other hand, the working conditions and load conditions of different engines are different, requiring more flexible and changeable control strategies to cope with various complex working conditions. Therefore, how to combine the actual working state information of the engine to design an electric-driven oil-gas separator control method that can respond in real time and accurately control is an important issue that the industry needs to solve urgently.

[0023] Combine the following Figure 1-Figure 3 Embodiments of the present invention are described.

[0024] Figure 1 This is one of the flow charts of the control method of the electric drive oil-gas separator provided by the present invention, such as Figure 1 As shown, the method includes the following: S110: After the engine is powered on, the engine operating status information is obtained through the engine control unit.

[0025] Specifically, when the engine is powered on, the engine control unit will collect multiple key parameters in real time as working status information, including but not limited to engine speed, actual engine torque percentage, and atmospheric temperature. These parameters are important bases for evaluating the current load and working status of the engine, and are crucial for determining the control strategy of the electric drive oil-gas separator in the future. By accurately obtaining this working status information, reliable data support can be provided for subsequent steps.

[0026] In one embodiment of the present invention, atmospheric temperature is an important environmental factor that affects engine performance and oil-gas separation efficiency. Under different atmospheric temperatures, the heat load and heat dissipation conditions of the engine will change, thereby affecting the physical state of the oil-gas mixture (such as density, viscosity, etc.). By collecting atmospheric temperature, the engine control unit can have a more comprehensive understanding of the current working environment, thereby optimizing the control strategy of the electric drive oil-gas separator to ensure that high oil-gas separation efficiency and emission performance can be maintained at different temperatures.

[0027] S120: The engine control unit determines the operating speed of the electric-driven oil-gas separator according to the working state information, and generates control information of the electric-driven oil-gas separator according to the operating speed.

[0028] According to a control method for an electric-driven oil-gas separator provided by the present invention, the working status information includes engine speed information; determining the operating speed of the electric-driven oil-gas separator based on the working status information specifically includes: judging the threshold interval where the engine speed information is located, triggering the corresponding operating mode of the electric-driven oil-gas separator according to the threshold interval, and determining the operating speed of the electric-driven oil-gas separator.

[0029] Specifically, the engine control unit monitors the engine speed in real time and compares it with multiple preset speed threshold intervals. These threshold intervals are usually divided according to different engine operating conditions (such as idle conditions, operating conditions, etc.). Once the engine speed falls into a specific threshold interval, the engine control unit will automatically trigger the corresponding operating mode of the electric oil-gas separator. When the engine speed is greater than 400r / min, the automatic operating mode of the electric oil-gas separator is triggered, which can be matched according to different engine operating conditions as follows. For example, when the engine speed is in the idle range (such as 400r / min to 800r / min), the control mode under the idle condition will be started; and when the engine speed increases to the operating range (such as 800r / min to 2600r / min), it will switch to the control mode under the operating condition.

[0030] By monitoring the engine speed in real time and automatically adjusting the operating mode and speed of the electric drive oil-gas separator according to the speed threshold range, it can ensure that the oil-gas separator can operate in the optimal state under different operating conditions, thereby improving the overall efficiency of the engine.

[0031] According to a control method for an electric-driven oil-gas separator provided by the present invention, the working status information includes the percentage of the actual torque of the engine; the threshold interval in which the engine speed information is located is judged, the corresponding operating mode of the electric-driven oil-gas separator is triggered according to the threshold interval, and the operating speed of the electric-driven oil-gas separator is determined, specifically including: when it is determined that the engine speed information is greater than a first preset threshold value and not greater than a second preset threshold value, the percentage interval in which the actual torque percentage of the engine is located is judged; when the actual torque percentage of the engine is within the first percentage interval, the operating speed of the electric-driven oil-gas separator is determined to be the first speed; when the actual torque percentage of the engine is within the second percentage interval, the operating speed of the electric-driven oil-gas separator is determined to be the second speed; when the actual torque percentage of the engine is within the third percentage interval, the operating speed of the electric-driven oil-gas separator is determined to be the third speed; when the actual torque percentage of the engine is within the fourth percentage interval, the operating speed of the electric-driven oil-gas separator is determined to be the fourth speed.

[0032] Specifically, after determining the operating mode, the engine control unit will further refine the operating speed of the electric drive oil-gas separator according to the actual torque percentage of the current engine (or other relevant parameters). For example, under idling conditions, different speed values ​​are set according to different intervals of the actual torque percentage of the engine.

[0033] Under idling conditions, when 400r / min<engine speed≤800r / min: 0≤actual engine torque percentage≤20%, the operating speed of the electric drive oil-gas separator is the first speed r1; 20%<actual engine torque percentage≤50%, the operating speed of the electric drive oil-gas separator is the second speed r2; 50%<actual engine torque percentage≤80%, the operating speed of the electric drive oil-gas separator is the third speed r3; 80%<actual engine torque percentage≤125%, the operating speed of the electric drive oil-gas separator is the fourth speed r4.

[0034] According to a control method for an electric-driven oil-gas separator provided by the present invention, the working status information includes the actual torque percentage of the engine; the threshold interval in which the engine speed information is located is judged, the corresponding operating mode of the electric-driven oil-gas separator is triggered according to the threshold interval, and the operating speed of the electric-driven oil-gas separator is determined, specifically including: when it is determined that the engine speed information is greater than the second preset threshold and not greater than the third preset threshold, the percentage interval in which the actual torque percentage of the engine is located is judged; when the actual torque percentage of the engine is within the first percentage interval, the operating speed of the electric-driven oil-gas separator is determined to be the fifth speed; when the actual torque percentage of the engine is within the second percentage interval, the operating speed of the electric-driven oil-gas separator is determined to be the sixth speed; when the actual torque percentage of the engine is within the third percentage interval, the operating speed of the electric-driven oil-gas separator is determined to be the seventh speed; when the actual torque percentage of the engine is within the fourth percentage interval, the operating speed of the electric-driven oil-gas separator is determined to be the eighth speed.

[0035] Specifically, under operating conditions, when the engine speed is 800r / min<engine speed≤2600r / min: 0≤actual engine torque percentage≤20%, the operating speed of the electric drive oil-gas separator is the fifth speed r5; 20%<actual engine torque percentage≤50%, the operating speed of the electric drive oil-gas separator is the sixth speed r6; 50%<actual engine torque percentage≤80%, the electric drive oil-gas separator operates at the seventh speed r7; 80%<actual engine torque percentage≤125%, the operating speed of the electric drive oil-gas separator is the eighth speed r8.

[0036] Table 1 is a schematic diagram of the speed of the electric drive oil-gas separator in the automatic operation mode under the above different working conditions.

[0037] Table 1

[0038] By comprehensively considering the engine speed and actual torque percentage to finely control the operating speed of the electric oil-gas separator, it is possible to more accurately adapt to the different operating conditions of the engine, optimize the oil-gas separation efficiency, further improve the engine's fuel economy, reduce emissions, and enhance the engine's stability and reliability under various operating conditions.

[0039] In one embodiment of the present invention, changes in atmospheric temperature will also indirectly affect the intake temperature of the engine, thereby affecting the combustion efficiency and power output of the engine. By real-time monitoring of the atmospheric temperature, the engine control unit can adjust the fuel injection amount, ignition advance angle and other parameters accordingly to keep the engine running in the best working state. This adjustment will also indirectly affect the composition and state of the oil-gas mixture in the crankcase, thereby facilitating the electric drive oil-gas separator to more effectively separate oil and gas.

[0040] By collecting atmospheric temperature data and combining it with other operating status information (such as engine speed, actual torque percentage, etc.), the engine control unit can promptly detect and respond to potential operating risks, such as overheating, overcooling, etc., thereby ensuring the stable operation of the entire system and the oil-gas separation effect.

[0041] By comprehensively considering the impact of environmental factors such as atmospheric temperature on engine performance, the engine control unit can more accurately control the operating parameters of the electric drive oil-gas separator to achieve optimal energy efficiency and environmental performance. For example, at lower atmospheric temperatures, appropriately increasing the speed of the electric drive oil-gas separator can improve the oil-gas separation efficiency; while at high temperature environments, it may be necessary to reduce the speed to reduce energy consumption and heat load.

[0042] S130: The engine control unit sends the control information to the electric drive control unit, and the electric drive control unit controls the impeller speed of the motor of the electric drive oil-gas separator.

[0043] According to a control method for an electric-driven oil-gas separator provided by the present invention, after the engine is powered on, if the working status information of the engine is not obtained within the first preset time after the initialization of the electric-driven oil-gas separator is completed, a communication fault is reported; if the impeller speed of the motor of the electric-driven oil-gas separator controlled according to the control information does not reach the preset speed, a communication fault is reported.

[0044] Specifically, after the engine is powered on, the electric drive oil-gas separator will receive the engine's working status information after initialization is completed. If there is no working status information from the engine control unit within 10 seconds, a communication failure will be reported; the oil-gas separator motor will be driven. If the motor speed cannot reach the preset speed, a motor failure will be reported; when the electric drive oil-gas separator is operating normally, the motor status and motor speed will be periodically sent to the engine control unit.

[0045] The working status of the electric drive oil-gas separator is monitored in real time through the communication between the engine control unit and the electric drive control unit. If the working status information of the engine is not obtained within the first preset time (such as within 10 seconds) after the initialization is completed, the communication fault can be reported quickly, which helps to discover and deal with the communication problem in time.

[0046] According to a control method for an electric-driven oil-gas separator provided by the present invention, after generating control information of a control unit of an electric-driven oil-gas separator, when a communication failure occurs in the controller area network of the entire system and the electric-driven oil-gas separator does not receive control information from the engine, the electric-driven oil-gas separator is controlled by the electric-driven control unit to automatically run at a ninth speed for a second preset time, and a controller area network timeout failure is reported to the engine control unit.

[0047] Specifically, when the CAN communication of the whole system controller fails and the electric drive oil-gas separator does not receive the control information of the engine, the electric drive oil-gas separator will automatically run at the ninth speed r9 for 10 seconds and report the engine control unit CAN timeout fault at the same time.

[0048] When the local area network communication of the whole system controller fails, the electric drive oil-gas separator can automatically run at the preset ninth speed for a period of time and report the communication timeout failure, thereby ensuring that the electric drive oil-gas separator can still maintain basic operation when the external control signal is lost, thereby improving the reliability and safety of the system.

[0049] The present invention uses the engine's operating status information (including: engine speed, actual engine torque percentage, atmospheric temperature, etc.) as a reference for engine operation, controls the ventilation status inside the engine crankcase in advance, and sets the required electric-driven oil-gas separator speed at different speeds and loads to achieve control of the entire engine operating condition, effectively reduce the emission of crankcase pollutants, and facilitate the control of pollutants from the entire machine.

[0050] The control device of the electric-driven oil-gas separator provided by the present invention is described below. The control device of the electric-driven oil-gas separator described below and the control method of the electric-driven oil-gas separator described above can be referred to each other.

[0051] like Figure 2 The figure shows a schematic diagram of the structure of a control device for an electric-driven oil-gas separator provided by the present invention, which includes the following modules: The engine control unit 210 is used to obtain the working state information of the engine after the engine is powered on; determine the operating speed of the electric drive oil-gas separator according to the working state information, generate the control information of the electric drive oil-gas separator according to the operating speed; and send the control information to the electric drive control unit; The electric drive control unit 220 is used to control the impeller speed of the motor of the electric drive oil-gas separator.

[0052] exist Figure 2 middle,

[0053] Figure 3 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 3As shown, the electronic device may include: a processor 310, a communications interface 320, a memory 330 and a communication bus 340, wherein the processor 310, the communications interface 320 and the memory 330 communicate with each other through the communication bus 340. The processor 310 may call the logic instructions in the memory 330 to execute the control method of the electric drive oil-gas separator, the method comprising: when the engine is powered on, obtaining the working state information of the engine through the engine control unit; the engine control unit determines the operating speed of the electric drive oil-gas separator according to the working state information, and generates the control information of the electric drive oil-gas separator according to the operating speed; the engine control unit sends the control information to the electric drive control unit, and controls the impeller speed of the motor of the electric drive oil-gas separator through the electric drive control unit.

[0054] In addition, the logic instructions in the above-mentioned memory 330 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0055] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the control method of the electric-driven oil-gas separator provided by the above methods. The method includes: when the engine is powered on, obtaining the working status information of the engine through the engine control unit; the engine control unit determines the operating speed of the electric-driven oil-gas separator according to the working status information, and generates control information of the electric-driven oil-gas separator according to the operating speed; the engine control unit sends the control information to the electric drive control unit, and controls the impeller speed of the motor of the electric-driven oil-gas separator through the electric drive control unit.

[0056] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, it is implemented to execute the control method of the electric-driven oil-gas separator provided by the above-mentioned methods. The method includes: when the engine is powered on, obtaining the working status information of the engine through the engine control unit; the engine control unit determines the operating speed of the electric-driven oil-gas separator according to the working status information, and generates control information of the electric-driven oil-gas separator according to the operating speed; the engine control unit sends the control information to the electric drive control unit, and controls the impeller speed of the motor of the electric-driven oil-gas separator through the electric drive control unit.

[0057] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0058] Through the description of the above implementation modes, those skilled in the art can clearly understand that each implementation mode can be implemented by means of software plus a necessary general hardware platform, or of course by hardware. Based on such an understanding, the above technical solution can essentially or in other words be embodied in the form of a software product that contributes to the prior art. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiment.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method for an electric-driven oil-gas separator, characterized in that: include: When the engine is powered on, the engine operating status information is obtained through the engine control unit; The engine control unit determines the operating speed of the electric-driven oil-gas separator according to the working state information, and generates control information of the electric-driven oil-gas separator according to the operating speed; The engine control unit will send the control information to the electric drive control unit, and the electric drive control unit will control the impeller speed of the motor of the electric drive oil-gas separator.

2. The control method of the electric drive oil-gas separator according to claim 1, characterized in that: The working status information includes engine speed information; Determining the operating speed of the electric-driven oil-gas separator according to the working state information specifically includes: The threshold interval of the engine speed information is determined, a corresponding operation mode of the electric-driven oil-gas separator is triggered according to the threshold interval, and an operation speed of the electric-driven oil-gas separator is determined.

3. The control method of the electric drive oil-gas separator according to claim 2, characterized in that: The working status information includes the actual engine torque percentage; The determining the threshold interval where the engine speed information is located, triggering the corresponding operation mode of the electric-driven oil-gas separator according to the threshold interval, and determining the operation speed of the electric-driven oil-gas separator specifically includes: When it is determined that the engine speed information is greater than a first preset threshold and not greater than a second preset threshold, determining a percentage interval in which the actual engine torque percentage lies; When the actual torque percentage of the engine is within a first percentage interval, determining the operating speed of the electric-driven oil-gas separator to be a first speed; When the actual engine torque percentage is within the second percentage interval, determining the operating speed of the electric-driven oil-gas separator to be the second speed; When the actual engine torque percentage is within a third percentage interval, determining the operating speed of the electric-driven oil-gas separator to be a third speed; When the actual engine torque percentage is within a fourth percentage interval, the operating speed of the electric-driven oil-gas separator is determined to be a fourth speed.

4. The control method of the electric-driven oil-gas separator according to claim 2, characterized in that: The working status information includes the actual engine torque percentage; The determining the threshold interval where the engine speed information is located, triggering the corresponding operation mode of the electric-driven oil-gas separator according to the threshold interval, and determining the operation speed of the electric-driven oil-gas separator specifically includes: When it is determined that the engine speed information is greater than the second preset threshold and not greater than the third preset threshold, determining the percentage interval in which the actual engine torque percentage lies; When the actual engine torque percentage is within the first percentage interval, determining the operating speed of the electric-driven oil-gas separator to be a fifth speed; When the actual engine torque percentage is within the second percentage interval, determining the operating speed of the electric-driven oil-gas separator to be a sixth speed; When the actual engine torque percentage is within the third percentage interval, determining the operating speed of the electric-driven oil-gas separator to be the seventh speed; When the actual engine torque percentage is within the fourth percentage interval, the operating speed of the electric-driven oil-gas separator is determined to be the eighth speed.

5. The control method of the electric-driven oil-gas separator according to claim 1, characterized in that: After the engine is powered on, the method further includes: If the working status information of the engine is not obtained within a first preset time after the initialization of the electric drive oil-gas separator is completed, reporting a communication failure; If the impeller speed of the motor of the electric-driven oil-gas separator controlled according to the control information does not reach the preset speed, a communication failure is reported.

6. The control method of the electric-driven oil-gas separator according to claim 1, characterized in that: After generating the control information of the electric drive oil-gas separator control unit, the method further includes: When the communication of the controller area network of the whole system fails and the electric drive oil-gas separator does not receive the control information of the engine, the electric drive control unit controls the electric drive oil-gas separator to automatically run at the ninth speed for the second preset time, and reports the controller area network timeout failure to the engine control unit.

7. A control device for an electrically driven oil-gas separator, characterized in that: include: An engine control unit, used to obtain the working status information of the engine after the engine is powered on; Determine the operating speed of the electric drive oil-gas separator according to the working state information, generate control information of the electric drive oil-gas separator according to the operating speed; and send the control information to the electric drive control unit; The electric drive control unit is used to control the impeller speed of the motor of the electric drive oil-gas separator.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the control method of the electric-driven oil-gas separator as claimed in any one of claims 1 to 6 is implemented.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the control method of the electric-driven oil-gas separator as claimed in any one of claims 1 to 6 is implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the control method of the electric-driven oil-gas separator as claimed in any one of claims 1 to 6 is implemented.

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