Method, device and equipment for removing deposited carbon of dual-fuel engine and medium

Abstract

The invention discloses a method, a device, equipment and a medium for removing deposited carbon of a dual-fuel engine, and the method comprises the following steps: acquiring operating parameters of the engine, calculating deposited carbon removing parameters based on the operating parameters, and judging whether the engine reaches a deposited carbon removing stage based on the deposited carbon removing parameters; and when the engine reaches the carbon deposition removal stage, the diesel oil injection duration of the engine each time is controlled to be the carbon deposition removal duration, otherwise, the diesel oil injection duration of the engine each time is controlled to be the normal operation duration, and the normal operation duration is smaller than the carbon deposition removal duration. By increasing the diesel injection time, the accumulated carbon in the diesel injection hole is removed, the problems of insufficient power, engine flameout and the like caused by blockage of a fuel injector of an engine are solved, and the service life of the injector is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and in particular to a method, device, equipment and medium for cleaning carbon deposits of a dual-fuel engine. Background Art

[0002] Current dual-fuel engines use direct-injection dual-fuel injectors. One of the fuels, diesel, is an auxiliary fuel and is only used for ignition. The required injection volume is very small. The diesel spray hole diameter of the in-cylinder injector is very small, usually around 0.1mm. Therefore, carbon deposits and even blockages are prone to occur under high load conditions, leading to problems such as insufficient power, excessive emissions, and normal flameout. Summary of the invention

[0003] The invention provides a method, device, equipment and medium for cleaning carbon deposits in a dual-fuel engine, so as to solve the problem that carbon deposits are easy to occur in diesel injection holes.

[0004] According to a first aspect of the present invention, a method for cleaning carbon deposits in a dual-fuel engine is provided, comprising:

[0005] Acquiring operating parameters of the engine, calculating carbon deposit removal parameters based on the operating parameters, and judging whether the engine has reached a carbon deposit removal stage based on the carbon deposit removal parameters;

[0006] When the engine reaches the carbon cleaning stage, the duration of each diesel injection of the engine is controlled to be the carbon cleaning duration, otherwise, the duration of each diesel injection of the engine is controlled to be the normal operating duration, and the normal operating duration is less than the carbon cleaning duration.

[0007] Optionally, the operating parameter is the operating mileage, acquiring the operating parameter of the engine, calculating the carbon deposit removal parameter based on the operating parameter, and judging whether the engine reaches the carbon deposit removal stage based on the carbon deposit removal parameter includes:

[0008] Get the first running mileage of the engine;

[0009] Calculate the remainder of the quotient of the first running mileage and the periodic mileage threshold as a carbon deposit removal parameter; if the remainder is equal to zero, determine that the engine ends the carbon deposit removal stage and enters the normal operation stage; if the remainder is less than the periodic normal mileage threshold, determine that the engine is in the normal operation stage; if the remainder is equal to or greater than the periodic normal mileage threshold, determine that the engine enters or is in the carbon deposit removal stage;

[0010] The periodic mileage threshold is the sum of the periodic normal mileage threshold and the periodic carbon deposit cleaning stage mileage.

[0011] Optionally, the operating parameter is a load rate, acquiring the operating parameter of the engine, calculating a carbon deposit removal parameter based on the operating parameter, and judging whether the engine reaches the carbon deposit removal stage based on the carbon deposit removal parameter comprises:

[0012] Obtaining a first accumulated running time when the engine load rate is within the carbon deposit removal load range;

[0013] A first ratio of the first accumulated operating time to a period accumulated operating time threshold is calculated as a carbon removal parameter. If the first ratio is an integer, it is determined that the engine enters a carbon removal phase, and the carbon removal phase ends after lasting for a first time.

[0014] Optionally, when the engine ends the carbon deposit cleaning stage, the method further includes:

[0015] The operating parameters of the engine are controlled to be cleared, the operating parameters of the engine are re-recorded, and the carbon deposit removal parameters are recalculated based on the re-recorded operating parameters.

[0016] Optionally, the operating parameter is the operating mileage, acquiring the operating parameter of the engine, calculating the carbon deposit removal parameter based on the operating parameter, and judging whether the engine reaches the carbon deposit removal stage based on the carbon deposit removal parameter includes:

[0017] Obtain the second running mileage of the engine;

[0018] Calculating a first difference between the second running mileage and a normal mileage threshold as a carbon deposit removal parameter; if the first difference is zero, determining that the engine enters the carbon deposit removal stage; if the first difference is equal to the carbon deposit removal stage mileage, determining that the engine ends the carbon deposit removal stage;

[0019] Controlling the operation parameters of the engine to be cleared, re-recording the operation parameters of the engine, and recalculating the carbon deposit removal parameters based on the re-recorded operation parameters includes:

[0020] The second running mileage of the engine is controlled to be cleared to zero, and the carbon deposit cleaning parameter is recalculated based on the reacquired second running mileage.

[0021] Optionally, the operating parameter is a load rate, acquiring the operating parameter of the engine, calculating a carbon deposit removal parameter based on the operating parameter, and judging whether the engine reaches the carbon deposit removal stage based on the carbon deposit removal parameter comprises:

[0022] Obtaining the second accumulated running time when the engine load rate is within the carbon deposit clearing load range;

[0023] Calculating a second difference between the second accumulated running time and the accumulated running time threshold as a carbon deposit removal parameter, and if the second difference is zero, determining that the engine enters a carbon deposit removal stage, and the carbon deposit removal stage ends after lasting for a first time;

[0024] Controlling the operation parameters of the engine to be cleared, re-recording the operation parameters of the engine, and recalculating the carbon deposit removal parameters based on the re-recorded operation parameters includes:

[0025] The second accumulated operating time is controlled to be cleared to zero, and the carbon deposit removal parameter is recalculated based on the reacquired second accumulated operating time.

[0026] Optionally, before obtaining the operating parameters of the engine, calculating the carbon deposit removal parameters based on the operating parameters, and judging whether the engine has reached the carbon deposit removal stage based on the carbon deposit removal parameters, the method further includes:

[0027] The determination threshold parameters related to the carbon cleaning parameters and the operating parameters are calibrated.

[0028] According to a second aspect of the present invention, there is provided a device for removing carbon deposits from a dual-fuel engine, comprising:

[0029] a determination module, configured to obtain operating parameters of the engine, calculate carbon deposit removal parameters based on the operating parameters, and determine whether the engine has reached a carbon deposit removal stage based on the carbon deposit removal parameters;

[0030] The execution module is used to control the duration of each diesel injection of the engine to be the carbon deposit cleaning duration when the engine reaches the carbon deposit cleaning stage, otherwise, control the duration of each diesel injection of the engine to be the normal operating duration, and the normal operating duration is less than the carbon deposit cleaning duration.

[0031] According to a third aspect of the present invention, there is provided an electronic device, the electronic device comprising:

[0032] at least one processor; and

[0033] a memory communicatively connected to the at least one processor; wherein,

[0034] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for cleaning carbon deposits of a dual-fuel engine described in any embodiment of the present invention.

[0035] According to a fourth aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions for enabling a processor to implement the method for cleaning carbon deposits of a dual-fuel engine as described in any embodiment of the present invention when the computer instructions are executed.

[0036] The technical solution of the embodiment of the present invention obtains the operating parameters of the engine, calculates the carbon removal parameters based on the operating parameters, and determines whether the engine has reached the carbon removal stage based on the carbon removal parameters; when the engine reaches the carbon removal stage, the duration of each diesel injection of the engine is controlled to be the carbon removal duration, otherwise, the duration of each diesel injection of the engine is controlled to be the normal operation duration, and the normal operation duration is less than the carbon removal duration. That is, by increasing the diesel injection duration, the diesel injection hole is carbon-removed, which solves the problems of insufficient power and engine stalling caused by fuel injector blockage, and increases the life of the injector.

[0037] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 is a flow chart of a method for cleaning carbon deposits in a dual-fuel engine according to an embodiment of the present invention;

[0040] Figure 2 is a flow chart of a method for cleaning carbon deposits in a dual-fuel engine according to a specific embodiment of the present invention;

[0041] Figure 3 It is a structural schematic diagram of an electronic device for implementing the method for cleaning carbon deposits of a dual-fuel engine according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below 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 of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0044] Figure 1 The present invention is a flowchart of a method for cleaning carbon deposits in a dual-fuel engine according to an embodiment of the present invention.

[0045] like Figure 1 As shown, the method includes:

[0046] S101, obtaining operating parameters of the engine, calculating carbon deposit removal parameters based on the operating parameters, and judging whether the engine has reached a carbon deposit removal stage based on the carbon deposit removal parameters;

[0047] S102, when the engine reaches the carbon cleaning stage, the duration of each diesel injection of the engine is controlled to be the carbon cleaning duration, otherwise, the duration of each diesel injection of the engine is controlled to be the normal operating duration, and the normal operating duration is less than the carbon cleaning duration.

[0048] Among them, the engine in this embodiment is a dual-fuel injector engine, and the dual-fuel injector is a direct-injection fuel injector in the cylinder, which can inject two fuels, the auxiliary fuel is diesel, and the main fuel is natural gas, methanol and other fuels. The operating parameters of the engine can be parameters that can directly or indirectly reflect the degree of carbon deposition in the engine. In addition, by calculating the operating parameters, it is possible to obtain carbon deposition parameters that directly determine whether the engine has reached the carbon deposition removal stage. In this way, when it is determined that the engine has entered the carbon deposition removal stage according to the carbon deposition removal parameters, the duration of each diesel injection of the engine can be controlled to increase relative to the normal operation duration, so as to increase the diesel injection amount of the engine at this stage, so as to effectively remove the carbon deposition in the diesel injection hole.

[0049] Among them, the carbon cleaning time can be calibrated accordingly according to the actual situation of the engine. The operating parameters of the engine can be obtained through the vehicle controller. Among them, the operating parameters of the engine in the embodiment of the present invention can be the operating mileage or the load rate. It can be understood that it is found in the experiment that when the engine's operating mileage reaches a certain value, or when the load rate reaches a certain level, there will be carbon deposits in the diesel injection hole of the engine. Then, the operating mileage or load rate can be used as a parameter that can indirectly reflect the degree of carbon deposits in the engine, and the corresponding carbon cleaning parameters can be obtained by calculation at a later stage to determine whether the engine has reached the carbon cleaning stage, so as to perform carbon cleaning operations on the engine.

[0050] Optionally, the operating parameter is the operating mileage, acquiring the operating parameter of the engine, calculating the carbon deposit removal parameter based on the operating parameter, and judging whether the engine reaches the carbon deposit removal stage based on the carbon deposit removal parameter includes:

[0051] Get the first running mileage of the engine;

[0052] Calculate the remainder of the quotient of the first running mileage and the periodic mileage threshold as the carbon deposit removal parameter; if the remainder is equal to zero, it is determined that the engine ends the carbon deposit removal stage and enters the normal operation stage; if the remainder is less than the periodic normal mileage threshold, it is determined that the engine is in the normal operation stage; if the remainder is equal to or greater than the periodic normal mileage threshold, it is determined that the engine enters or is in the carbon deposit removal stage;

[0053] The cycle mileage threshold is the sum of the cycle normal mileage threshold and the cycle carbon deposit cleaning stage mileage.

[0054] It should be noted that, in this embodiment, the first running mileage is the accumulated mileage of the vehicle since it left the factory. The normal mileage threshold of the cycle is a threshold calibrated by experiments, and the performance or emission of the vehicle within the mileage threshold range does not exceed the standard. When the normal mileage threshold of the cycle is exceeded, the performance or emission of the vehicle exceeds the standard. The mileage of the periodic carbon deposit removal stage is a threshold calibrated by experiments, and the performance or emission of the vehicle within the mileage threshold range exceeds the standard. The sum of the normal mileage threshold of the cycle and the mileage of the periodic carbon deposit removal stage is a cycle mileage threshold of the engine.

[0055] In other words, after the vehicle leaves the factory, within the first cycle mileage threshold, when the first running mileage is less than the cycle normal mileage threshold, the engine is in the normal operation stage, that is, the diesel injection duration of the engine is the normal operation duration. When the first running mileage is equal to or greater than the cycle normal mileage threshold, the engine enters the carbon cleaning stage, that is, the diesel injection duration of the engine is the carbon cleaning duration. Then, when the first running mileage is equal to the first cycle mileage threshold, the engine ends the carbon cleaning stage and re-enters the normal operation stage, that is, enters the second cycle, and repeats.

[0056] For example, the normal mileage threshold of the cycle is A, the mileage of the periodic carbon deposit removal stage is B, and the periodic mileage threshold is A+B. If the first running mileage is C, then when C / (A+B)=integer, the engine has just finished the carbon deposit removal stage. When C / (A+B)≠integer and the remainder is less than A, the engine is in the normal running stage. When C / (A+B)≠integer and the remainder is greater than or equal to A and less than B, the engine is in the carbon deposit removal stage. This cycle is repeated. Among them, by rounding up the quotient of C / (A+B), it can be known which carbon deposit removal cycle the current engine is in.

[0057] Optionally, the operating parameter is a load rate, acquiring the operating parameter of the engine, calculating the carbon deposit removal parameter based on the operating parameter, and judging whether the engine reaches the carbon deposit removal stage based on the carbon deposit removal parameter includes:

[0058] Obtaining a first accumulated running time when the engine load rate is within the carbon deposit removal load range;

[0059] A first ratio of the first accumulated operating time to the period accumulated operating time threshold is calculated as a carbon cleaning parameter. If the first ratio is an integer, it is determined that the engine enters a carbon cleaning phase, and the carbon cleaning phase ends after lasting for a first time.

[0060] It should be noted that, in this embodiment, the load rate of the engine can be calculated in real time by the vehicle controller. When the load rate is less than the load rate threshold, the engine is in the normal operation stage. When the load rate is greater than or equal to the load rate threshold, the engine needs to be decarbonized. However, in order to avoid false triggering and frequent decarbonization, the time when the engine's load rate is in the decarbonization load range can be accumulated, that is, the first accumulated running time is formed. When the first accumulated running time reaches a certain level, such as exceeding the periodic accumulated running time threshold, the engine is decarbonized. Among them, the first accumulated running time is the accumulated time that the vehicle needs to be decarbonized after leaving the factory. The load rate threshold and the periodic accumulated running time threshold are both thresholds calibrated according to the actual engine conditions during the experimental phase.

[0061] That is to say, after the vehicle leaves the factory, the load rate of the vehicle is monitored all the time. When the load rate exceeds the load rate threshold, timing is started, and when the load rate is lower than the load rate threshold, timing is suspended. Then, when the load rate exceeds the load rate threshold, timing continues, and when the load rate is lower than the load rate threshold, timing is suspended, and so on, until the cumulative time exceeding the load rate threshold reaches the cycle cumulative operation time threshold, the engine enters the carbon cleaning stage, that is, the diesel injection time of the engine is changed from the normal operation time to the carbon cleaning time, and after the carbon cleaning stage lasts for the first time, the carbon cleaning stage ends, and the engine re-enters the normal operation stage, that is, enters the second cycle, and repeats over and over again. Among them, the first cumulative operation time does not accumulate the first time.

[0062] For example, the first duration is Δt1, the first accumulated operation duration is T, and the period accumulated operation duration threshold is Δt2. If the first accumulated operation duration T / Δt2=integer, the engine enters the carbon cleaning stage, that is, the diesel injection duration of the engine is the carbon cleaning duration. If the first accumulated operation duration T / Δt2≠integer, the engine is in the normal operation stage, that is, the diesel injection duration of the engine is the normal operation duration, and so on. Among them, by rounding up the quotient of T / Δt2, it can be known which carbon cleaning cycle the current engine is in.

[0063] Optionally, when the engine ends the carbon deposit cleaning phase, the method further includes:

[0064] The operating parameters of the engine are controlled to be cleared, the operating parameters of the engine are re-recorded, and the carbon deposit cleaning parameters are recalculated based on the re-recorded operating parameters.

[0065] It is understandable that in this embodiment, the operating parameters can be reset to zero after each carbon cleaning stage, and then accumulated again, which can reduce the amount of calculation and the requirements for the vehicle controller, and can avoid judgment failures caused by the loss of intermediate data.

[0066] Optionally, the operating parameter is the operating mileage, acquiring the operating parameter of the engine, calculating the carbon deposit removal parameter based on the operating parameter, and judging whether the engine reaches the carbon deposit removal stage based on the carbon deposit removal parameter includes:

[0067] Obtain the second running mileage of the engine;

[0068] Calculate a first difference between the second running mileage and the normal mileage threshold as a carbon deposit removal parameter; if the first difference is zero, determine that the engine enters the carbon deposit removal stage; if the first difference is equal to the mileage of the carbon deposit removal stage, determine that the engine ends the carbon deposit removal stage;

[0069] Controlling the engine's operating parameters to be cleared, re-recording the engine's operating parameters, and recalculating the carbon deposit removal parameters based on the re-recorded operating parameters includes:

[0070] The second running mileage of the engine is controlled to be reset to zero, and the carbon deposit cleaning parameter is recalculated based on the re-acquired second running mileage.

[0071] The second running mileage is the mileage collected and accumulated in real time during each carbon deposit cleaning cycle.

[0072] Exemplarily, in each carbon deposit cleaning cycle, the second operating mileage is c, the normal mileage threshold is A, and the carbon deposit cleaning stage mileage is B. When c is less than A, that is, when the first difference is negative, the engine is in the normal operation stage, c is equal to A, that is, when the first difference is zero, the engine enters the carbon deposit cleaning stage, c is less than A+B, that is, when the first difference is positive and less than B, the engine is in the carbon deposit cleaning stage, c is equal to A+B, that is, when the first difference is positive and equal to B, c is reset to zero, and c is reassigned.

[0073] Optionally, the operating parameter is a load rate, acquiring the operating parameter of the engine, calculating the carbon deposit removal parameter based on the operating parameter, and judging whether the engine reaches the carbon deposit removal stage based on the carbon deposit removal parameter includes:

[0074] Obtaining the second accumulated running time when the engine load rate is within the carbon deposit clearing load range;

[0075] Calculate a second difference between the second accumulated running time and the accumulated running time threshold as a carbon deposit removal parameter. If the second difference is zero, it is determined that the engine enters a carbon deposit removal phase, and the carbon deposit removal phase ends after lasting for the first time period.

[0076] Controlling the engine's operating parameters to be cleared, re-recording the engine's operating parameters, and recalculating the carbon deposit removal parameters based on the re-recorded operating parameters includes:

[0077] The second accumulated operating time is controlled to be cleared to zero, and the carbon deposit removal parameter is recalculated based on the re-acquired second accumulated operating time.

[0078] The second accumulated operating time is the accumulated operating time when the load rate is within the carbon deposit cleaning load range in each carbon deposit cleaning cycle.

[0079] Exemplarily, in each carbon cleaning cycle, the second accumulated running time is t, the first time is Δt1, and the accumulated running time threshold is Δt2. When t is less than Δt2, that is, when the second difference is negative, the engine is in the normal operation stage, and when t is equal to Δt2, that is, when the first difference is zero, the engine enters the carbon cleaning stage, and after the first time Δt1, t is reset to zero and t is reassigned. In this embodiment, the second accumulated running time t can accumulate the first time of the carbon cleaning stage.

[0080] Optionally, before obtaining the operating parameters of the engine, calculating the carbon deposit removal parameters based on the operating parameters, and judging whether the engine has reached the carbon deposit removal stage based on the carbon deposit removal parameters, the method further includes:

[0081] Calibrate the judgment threshold parameters related to carbon cleaning parameters and operating parameters.

[0082] It is understandable that during the calibration phase, the judgment threshold parameters can be obtained by measuring whether the engine performance or emissions during vehicle operation exceed the standard through actual road bench testing of the entire vehicle.

[0083] For example, when the operating parameter is the running mileage, the vehicle is controlled to start, the vehicle running mileage is collected, and when the vehicle engine performance or emission exceeds the standard, it is considered that the vehicle needs to enter the carbon removal stage, and the mileage before entering the carbon removal stage can be the normal mileage threshold. After the vehicle enters the carbon removal stage, the diesel injection duration is controlled to increase, and when it is detected again that the vehicle engine performance or emission does not exceed the standard and returns to normal, the running mileage of this stage is the carbon removal mileage.

[0084] In one embodiment, Figure 2 As shown, the first part is the main strategy for cleaning carbon deposits. The vehicle runs the engine and records the running mileage L1. When the running mileage L1 is less than the carbon deposit running mileage threshold L0, the diesel injection duration of the engine runs map0; when the running mileage L1 is greater than or equal to the carbon deposit running mileage threshold L0, the engine enters the carbon deposit cleaning mode, and the running diesel injection duration runs map1 (increasing the diesel injection duration) until the running mileage L4 in the carbon deposit cleaning mode is greater than or equal to the preset carbon deposit cleaning mileage threshold L3, then exits the carbon deposit cleaning mode, the engine diesel injection duration runs map0, and the running mileage L1 is reset to zero, and the mileage is accumulated again. The second part is the carbon deposit model, the strategy for determining the carbon deposit running mileage threshold L0: collect the actual road spectrum of the vehicle, conduct bench tests continuously, conduct performance and emission tests in the middle of the test, and when the performance or emissions exceed the standard, it is the carbon deposit running mileage threshold L0. The third part is the carbon deposit removal model and the strategy for determining the carbon deposit removal mileage threshold L3: collect the actual road spectrum of the vehicle and conduct continuous bench tests. At this time, the diesel injection time of the engine is map1. Performance and emission tests are conducted in the middle of the test. When the performance and emissions do not exceed the standard, it is the carbon deposit removal mileage threshold L3.

[0085] Similarly, when the operating parameter is the load rate, the vehicle is controlled to start, the vehicle load rate is collected, and when the vehicle engine performance or emissions are collected to exceed the standard, it is considered that the vehicle load rate is greater than the vehicle load rate threshold, and timing is performed. Since the load rate changes rapidly, the vehicle is controlled to enter the carbon deposit removal stage only after the timing reaches the cumulative operating time threshold, and the diesel injection time is controlled to increase. Among them, the cumulative operating time threshold is a threshold value calibrated by testing and / or experience. Under this threshold, the engine will not be frequently cleaned of carbon deposits, and carbon deposits will not cause serious impact on the engine before cleaning. In addition, the first duration is also a threshold value calibrated by testing and / or experience. Under this threshold, it is sufficient to clean the carbon deposits in the diesel injection hole.

[0086] In addition, during the engine's carbon deposit cleaning stage, the diesel injection carbon deposit cleaning time is also calibrated. Under this calibration amount, the carbon deposits in the diesel injection hole can be flushed without affecting normal combustion.

[0087] Based on test results, the present invention can effectively remove carbon deposits from the injector spray hole by appropriately increasing the diesel injection time; remove carbon deposits by fixed mileage, or count the high load proportion according to the operating conditions of the engine, and remove carbon deposits after reaching a certain threshold; and increase the service life of the dual-fuel injector without sacrificing economy.

[0088] The embodiment of the present invention further provides a device for removing carbon deposits from a dual-fuel engine, comprising:

[0089] A determination module, used for obtaining operating parameters of the engine, calculating carbon deposit removal parameters based on the operating parameters, and determining whether the engine has reached the carbon deposit removal stage based on the carbon deposit removal parameters;

[0090] The execution module is used to control the duration of each diesel injection of the engine to be the carbon deposit cleaning duration when the engine reaches the carbon deposit cleaning stage, otherwise, the duration of each diesel injection of the engine is controlled to be the normal operating duration, and the normal operating duration is less than the carbon deposit cleaning duration.

[0091] Optionally, the running parameter is running mileage, and the determination module includes:

[0092] A first acquisition unit, used for acquiring a first running mileage of the engine;

[0093] a first calculation and determination unit, for calculating the remainder of the quotient of the first running mileage and the periodic mileage threshold as a carbon deposit removal parameter; if the remainder is equal to zero, it is determined that the engine ends the carbon deposit removal stage and enters the normal operation stage; if the remainder is less than the periodic normal mileage threshold, it is determined that the engine is in the normal operation stage; if the remainder is equal to or greater than the periodic normal mileage threshold, it is determined that the engine enters or is in the carbon deposit removal stage;

[0094] The cycle mileage threshold is the sum of the cycle normal mileage threshold and the cycle carbon deposit cleaning stage mileage.

[0095] Optionally, the operating parameter is a load rate, and the determination module includes:

[0096] A second acquisition unit is used to acquire a first accumulated running time when the load rate of the engine is within the carbon deposit removal load range;

[0097] The second calculation and judgment unit is used to calculate a first ratio of the first cumulative operating time to a periodic cumulative operating time threshold as a carbon cleaning parameter. If the first ratio is an integer, it is determined that the engine enters a carbon cleaning phase, and the carbon cleaning phase ends after lasting for a first time.

[0098] Optionally, the dual-fuel engine carbon deposit removal device further comprises:

[0099] The zeroing module is used to control the zeroing of the engine's operating parameters, re-record the engine's operating parameters, and recalculate the carbon deposit cleaning parameters based on the re-recorded operating parameters.

[0100] Optionally, the running parameter is running mileage, and the determination module includes:

[0101] A third acquisition unit, used for acquiring a second running mileage of the engine;

[0102] The third calculation and determination unit is used to calculate a first difference between the second running mileage and the normal mileage threshold as a carbon deposit removal parameter, and if the first difference is zero, it is determined that the engine enters the carbon deposit removal stage; if the first difference is equal to the mileage of the carbon deposit removal stage, it is determined that the engine ends the carbon deposit removal stage;

[0103] The clearing module includes:

[0104] The first clearing unit is used to control the second running mileage of the engine to be cleared, and to recalculate the carbon deposit clearing parameter based on the re-acquired second running mileage.

[0105] Optionally, the operating parameter is a load rate, and the determination module includes:

[0106] A fourth acquisition unit, used for acquiring a second accumulated running time when the load rate of the engine is within the carbon deposit removal load range;

[0107] a fourth calculation and determination unit, configured to calculate a second difference between the second accumulated operating time and the accumulated operating time threshold as a carbon deposit removal parameter, and if the second difference is zero, determine that the engine enters a carbon deposit removal phase, and the carbon deposit removal phase ends after lasting for a first time period;

[0108] The clearing module includes:

[0109] The second clearing unit is used to control the second accumulated running time to be cleared, and to recalculate the carbon deposit clearing parameter based on the re-acquired second accumulated running time.

[0110] Optionally, the dual-fuel engine carbon deposit removal device further comprises:

[0111] The calibration module is used to calibrate the judgment threshold parameters related to the carbon cleaning parameters and the operating parameters.

[0112] The device for cleaning carbon deposits of a dual-fuel engine provided in the embodiment of the present invention can execute the method for cleaning carbon deposits of a dual-fuel engine provided in any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method.

[0113] An embodiment of the present invention provides an electronic device, the electronic device comprising:

[0114] at least one processor; and

[0115] a memory communicatively connected to the at least one processor; wherein,

[0116] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for cleaning carbon deposits of a dual-fuel engine described in any embodiment of the present invention.

[0117] Figure 3 A schematic diagram of an electronic device that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0118] like Figure 3 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the random access memory (RAM) 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the read-only memory (ROM) 12 and the random access memory (RAM) 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0119] A number of components in the electronic device 10 are connected to an input / output (I / O) interface 15, including an input unit 16, such as a keyboard, a mouse, etc., an output unit 17, such as various types of displays, speakers, etc., a storage unit 18, such as a disk, an optical disk, etc., and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0120] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as a method for cleaning carbon deposits in a dual-fuel engine.

[0121] In some embodiments, the method for cleaning carbon deposits in a dual-fuel engine may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via a read-only memory (ROM) 12 and / or a communication unit 19. When the computer program is loaded into a random access memory (RAM) 13 and executed by the processor 11, one or more steps of the method for cleaning carbon deposits in a dual-fuel engine described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the method for cleaning carbon deposits in a dual-fuel engine by any other appropriate means (e.g., by means of firmware).

[0122] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0123] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0124] An embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for cleaning carbon deposits of a dual-fuel engine as described in any embodiment of the present invention when executed.

[0125] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0126] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0127] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0128] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0129] In summary, the technical solution of the embodiment of the present invention obtains the operating parameters of the engine, calculates the carbon removal parameters based on the operating parameters, and determines whether the engine has reached the carbon removal stage based on the carbon removal parameters; when the engine reaches the carbon removal stage, the duration of each diesel injection of the engine is controlled to be the carbon removal duration, otherwise, the duration of each diesel injection of the engine is controlled to be the normal operation duration, and the normal operation duration is less than the carbon removal duration. That is, by increasing the diesel injection duration, the diesel spray hole is carbon-removed, which solves the problems of insufficient power and engine stalling caused by fuel injector blockage, and improves the life of the injector.

[0130] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0131] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for cleaning carbon deposits in a dual-fuel engine, characterized in that: include: Acquiring operating parameters of the engine, calculating carbon deposit removal parameters based on the operating parameters, and judging whether the engine has reached a carbon deposit removal stage based on the carbon deposit removal parameters; When the engine reaches the carbon cleaning stage, the duration of each diesel injection of the engine is controlled to be the carbon cleaning duration, otherwise, the duration of each diesel injection of the engine is controlled to be the normal operating duration, and the normal operating duration is less than the carbon cleaning duration.

2. The method for cleaning carbon deposits of a dual-fuel engine according to claim 1, characterized in that: The operating parameter is the operating mileage, acquiring the operating parameter of the engine, calculating the carbon deposit removal parameter based on the operating parameter, and judging whether the engine has reached the carbon deposit removal stage based on the carbon deposit removal parameter includes: Get the first running mileage of the engine; Calculate the remainder of the quotient of the first running mileage and the periodic mileage threshold as a carbon deposit removal parameter; if the remainder is equal to zero, determine that the engine ends the carbon deposit removal stage and enters the normal operation stage; if the remainder is less than the periodic normal mileage threshold, determine that the engine is in the normal operation stage; if the remainder is equal to or greater than the periodic normal mileage threshold, determine that the engine enters or is in the carbon deposit removal stage; The periodic mileage threshold is the sum of the periodic normal mileage threshold and the periodic carbon deposit cleaning stage mileage.

3. The method for cleaning carbon deposits of a dual-fuel engine according to claim 1, characterized in that: The operating parameter is a load rate, acquiring the operating parameter of the engine, calculating a carbon deposit removal parameter based on the operating parameter, and judging whether the engine reaches the carbon deposit removal stage based on the carbon deposit removal parameter includes: Obtaining a first accumulated running time when the engine load rate is within the carbon deposit removal load range; A first ratio of the first accumulated operating time to a period accumulated operating time threshold is calculated as a carbon removal parameter. If the first ratio is an integer, it is determined that the engine enters a carbon removal phase, and the carbon removal phase ends after lasting for a first time.

4. The method for cleaning carbon deposits of a dual-fuel engine according to claim 1, characterized in that: When the engine ends the carbon deposit cleaning stage, the process further includes: The operating parameters of the engine are controlled to be cleared, the operating parameters of the engine are re-recorded, and the carbon deposit removal parameters are recalculated based on the re-recorded operating parameters.

5. The method for cleaning carbon deposits of a dual-fuel engine according to claim 4, characterized in that: The operating parameter is the operating mileage, acquiring the operating parameter of the engine, calculating the carbon deposit removal parameter based on the operating parameter, and judging whether the engine has reached the carbon deposit removal stage based on the carbon deposit removal parameter includes: Obtain the second running mileage of the engine; Calculating a first difference between the second running mileage and a normal mileage threshold as a carbon deposit removal parameter; if the first difference is zero, determining that the engine enters the carbon deposit removal stage; if the first difference is equal to the carbon deposit removal stage mileage, determining that the engine ends the carbon deposit removal stage; Controlling the operation parameters of the engine to be cleared, re-recording the operation parameters of the engine, and recalculating the carbon deposit removal parameters based on the re-recorded operation parameters includes: The second running mileage of the engine is controlled to be cleared to zero, and the carbon deposit cleaning parameter is recalculated based on the reacquired second running mileage.

6. The method for cleaning carbon deposits of a dual-fuel engine according to claim 4, characterized in that: The operating parameter is a load rate, acquiring the operating parameter of the engine, calculating a carbon deposit removal parameter based on the operating parameter, and judging whether the engine reaches the carbon deposit removal stage based on the carbon deposit removal parameter includes: Obtaining the second accumulated running time when the engine load rate is within the carbon deposit clearing load range; Calculating a second difference between the second accumulated running time and the accumulated running time threshold as a carbon deposit removal parameter, and if the second difference is zero, determining that the engine enters a carbon deposit removal stage, and the carbon deposit removal stage ends after lasting for a first time; Controlling the operation parameters of the engine to be cleared, re-recording the operation parameters of the engine, and recalculating the carbon deposit removal parameters based on the re-recorded operation parameters includes: The second accumulated operating time is controlled to be cleared to zero, and the carbon deposit removal parameter is recalculated based on the reacquired second accumulated operating time.

7. The method for cleaning carbon deposits of a dual-fuel engine according to claim 1, characterized in that: Before obtaining the operating parameters of the engine, calculating the carbon removal parameters based on the operating parameters, and judging whether the engine has reached the carbon removal stage based on the carbon removal parameters, the method further includes: The determination threshold parameters related to the carbon cleaning parameters and the operating parameters are calibrated.

8. A device for cleaning carbon deposits in a dual-fuel engine, characterized in that: include: a determination module, configured to obtain operating parameters of the engine, calculate carbon deposit removal parameters based on the operating parameters, and determine whether the engine has reached a carbon deposit removal stage based on the carbon deposit removal parameters; The execution module is used to control the duration of each diesel injection of the engine to be the carbon deposit cleaning duration when the engine reaches the carbon deposit cleaning stage, otherwise, control the duration of each diesel injection of the engine to be the normal operating duration, and the normal operating duration is less than the carbon deposit cleaning duration.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can perform the method for cleaning carbon deposits of a dual-fuel engine according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for cleaning carbon deposits of a dual-fuel engine according to any one of claims 1 to 7 when executed.

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