CN113915040A - Ignition control method, device and equipment of engine and storage medium - Google Patents
Ignition control method, device and equipment of engine and storage medium Download PDFInfo
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- CN113915040A CN113915040A CN202111519394.8A CN202111519394A CN113915040A CN 113915040 A CN113915040 A CN 113915040A CN 202111519394 A CN202111519394 A CN 202111519394A CN 113915040 A CN113915040 A CN 113915040A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P9/00—Electric spark ignition control, not otherwise provided for
Abstract
The application discloses an ignition control method, an ignition control device, ignition control equipment and a storage medium of an engine, wherein the method comprises the following steps: determining the activation proportion of the engine based on the operation condition of the engine, wherein the activation proportion is the ratio of the number of cylinders needing ignition and combustion to the total number of cylinders of the engine; determining the ignition sequence of each cylinder of the engine according to the activation proportion, and generating an ignition mark of each cylinder; and aiming at any one cylinder, generating a corresponding ignition control command according to the ignition mark of the cylinder so that the engine executes corresponding operation according to the ignition control command. According to the ignition control method of the engine, the partial cylinders needing to be ignited and combusted are determined according to the specific operation condition of the engine, so that the cylinders needing to be ignited and combusted can operate at higher thermal efficiency, and the thermal efficiency of the engine is improved.
Description
Technical Field
The present disclosure relates to the field of control technologies, and in particular, to an ignition control method, an ignition control device, an ignition control apparatus, and a storage medium for an engine.
Background
An engine is a machine capable of converting other forms of energy into mechanical energy, and common engines are gasoline engines, diesel engines and the like. One working cycle of an engine generally includes four strokes: the engine comprises an air inlet stroke, a compression stroke, a work stroke and an exhaust stroke, wherein the work stroke releases a large amount of heat energy through the combustion of gas in an engine cylinder and is converted into mechanical energy through the engine to be output.
In the prior art, all cylinders of a multi-cylinder engine can be ignited and combusted once in the process of one working cycle, and the conventional ignition control method of the engine is not perfect, so that the thermal efficiency of the engine is lower.
Disclosure of Invention
The embodiment of the application provides an ignition control method, device and equipment of an engine and a storage medium, so that the thermal efficiency of the engine is improved.
In a first aspect, an embodiment of the present application provides an ignition control method for an engine, the method including:
determining an activation proportion of the engine based on the operation condition of the engine, wherein the activation proportion is the ratio of the number of cylinders for ignition combustion to the total number of cylinders of the engine;
determining the ignition sequence of each cylinder of the engine according to the activation proportion, and generating an ignition mark of each cylinder;
and aiming at any one cylinder, generating an ignition control instruction according to the ignition mark of the cylinder so that the engine can execute corresponding operation according to the ignition control instruction.
In some possible embodiments, the generating an ignition control command according to the ignition flag of the cylinder includes:
and when the ignition mark of the cylinder is ignition, generating ignition control instructions of normal opening and closing of the intake valve, fuel injection of the fuel injector and normal opening and closing of the exhaust valve.
In some possible embodiments, the generating an ignition control command according to the ignition flag of the cylinder includes:
and when the ignition mark of the cylinder is not ignited, generating an ignition control command without fuel injection and with an exhaust valve closed.
In some possible embodiments, the method further comprises:
judging whether the cylinder is ignited in the last working cycle;
and when the cylinder is ignited in the last working cycle, generating an ignition control command for normally opening and closing the intake valve.
In some possible embodiments, the generating an ignition control command according to the ignition flag of the cylinder includes:
determining a cylinder in an exhaust stroke according to the position of the crankshaft and the position of the camshaft;
and generating an ignition control command according to the ignition mark of the cylinder in the exhaust stroke.
In some possible embodiments, the determining the activation ratio of the engine based on the operating condition of the engine includes:
the activation proportion of the engine is determined based on the rotating speed of the engine and the required torque, wherein the rotating speed is less than or equal to a preset rotating speed, and the required torque is less than or equal to a preset required torque.
In some possible embodiments, the method further comprises:
and when at least one of the rotating speed is greater than the preset rotating speed or the required torque is greater than the preset required torque is met, the engine executes a preset ignition control method.
In a second aspect, an embodiment of the present application provides an ignition control apparatus of an engine, the apparatus including: the ignition control system comprises an activation control module, a first ignition control module and a second ignition control module;
the activation control module is used for determining the activation proportion of the engine based on the operation working condition of the engine, wherein the activation proportion is the ratio of the number of cylinders for ignition combustion to the total number of cylinders of the engine;
the first ignition control module is used for determining the ignition sequence of each cylinder of the engine according to the activation proportion and generating an ignition mark of each cylinder;
and the second ignition control module is used for generating an ignition control instruction according to the ignition mark of the cylinder aiming at any cylinder so as to facilitate the engine to execute corresponding operation according to the ignition control instruction.
In a third aspect, an embodiment of the present application provides an ignition control apparatus of an engine, the apparatus including: a memory and a processor;
the memory for storing associated program code;
the processor is configured to call the program code to execute the ignition control method of the engine according to any one of the embodiments of the first aspect.
In a fourth aspect, the present application further provides a computer-readable storage medium for storing a computer program for executing the ignition control method of the engine according to any one of the embodiments of the first aspect.
In the above implementation manner of the embodiment of the application, firstly, an activation ratio of the engine is determined based on an operation condition of the engine, wherein the activation ratio is a ratio of the number of cylinders for ignition combustion to the total number of cylinders of the engine; determining the ignition sequence of each cylinder of the engine according to the activation proportion, and generating an ignition mark of each cylinder; and aiming at any one cylinder, generating a corresponding ignition control command according to the ignition mark of the cylinder so that the engine executes corresponding operation according to the ignition control command. According to the ignition control method of the engine, the part of the cylinders needing ignition and combustion is determined according to the specific operation condition of the engine, and other cylinders are controlled not to combust, so that the cylinders with ignition and combustion can operate at higher thermal efficiency, and the thermal efficiency of the engine is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments provided in the present application, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a flow chart of an engine ignition control method according to an embodiment of the present application;
FIG. 2 is a flow chart of another method of controlling ignition of an engine according to an embodiment of the present application;
FIG. 3 is a flow chart of a method of controlling ignition of another engine according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an ignition control apparatus of an engine according to an embodiment of the present application;
fig. 5 is a schematic diagram of an ignition control apparatus of an engine in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and the described embodiments are only exemplary embodiments of the present application, and not all implementations. Those skilled in the art can combine the embodiments of the present application to obtain other embodiments without inventive work, and these embodiments are also within the scope of the present application.
Because all cylinders of the existing multi-cylinder engine can be ignited and combusted once in the process of one working cycle, the ignition control method is not perfect, and the thermal efficiency of the engine is lower.
Based on the above, the embodiment of the application provides an ignition control method of an engine, so as to improve the thermal efficiency of the engine. Thermal efficiency refers to the ratio of energy that is effectively output to energy that is input for a particular thermal energy conversion device. The thermal efficiency of an engine is the ratio of the amount of heat converted into mechanical work in the engine to the amount of heat consumed, and is an important index for measuring the economic performance of the engine.
When the ignition control method is concretely realized, firstly, the activation proportion of the engine is determined based on the operation condition of the engine, wherein the activation proportion is the ratio of the number of cylinders needing ignition and combustion to the total number of the cylinders of the engine; determining the ignition sequence of each cylinder of the engine according to the activation proportion, and generating an ignition mark of each cylinder; and aiming at any one cylinder, generating a corresponding ignition control command according to the ignition mark of the cylinder so that the engine executes corresponding operation according to the ignition control command. According to the ignition control method of the engine, the partial cylinders needing ignition and combustion are determined according to the specific operation working condition of the engine, other cylinders are controlled not to combust, and the heat efficiency of the engine is improved.
The working principle of the engine will be described in conjunction with a specific scenario, taking a six-cylinder engine as an example, that is, the engine includes 6 cylinders, and the cylinder numbers of the cylinders are 1, 2, 3, 4, 5, and 6, respectively.
An engine typically includes four piston strokes, i.e., an intake stroke, a compression stroke, a power stroke, and an exhaust stroke, during a single operating cycle.
Specifically, the engine opens the intake valve, and the piston in the cylinder moves from the top dead center to the bottom dead center, inhales gas until the piston moves to the bottom dead center, and closes the intake valve.
Then, the piston moves upward to compress the gas in the cylinder, the gas temperature rises, and the cylinder pressure rises.
In the power stroke, different kinds of engines are ignited in different modes, gasoline engine utilizes the arc discharge principle between two electrodes of spark plug to ignite combustible gas directly, and diesel oil is sprayed into diesel oil engine in the end of compression stroke and the temperature inside the cylinder exceeds the self-ignition temperature of diesel oil, so that the diesel oil and air may be mixed to produce self-ignition. The high-temperature and high-pressure gas pushes the piston to rapidly move towards a lower dead point, and the piston does work outwards through the crank connecting rod mechanism.
When the working stroke is about to end, the exhaust valve is opened, the piston moves to the upper dead point by passing through the lower dead point, and the waste gas in the cylinder is discharged.
The engine completes a working cycle through four strokes of air intake, compression, work and air exhaust, in the process, the piston reciprocates up and down for four strokes, and the corresponding crankshaft rotates for two circles, namely 720 degrees.
The operation principle of the ignition control method of the engine provided by the present application will be described with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a flowchart of an ignition control method of an engine according to an embodiment of the present application.
The method specifically comprises the following steps:
s101: and determining the activation proportion of the engine based on the operation condition of the engine, wherein the activation proportion is the ratio of the number of cylinders for ignition combustion to the total number of cylinders of the engine.
In the ignition control method provided by the embodiment, all cylinders do not need to be controlled to carry out ignition combustion, any multiple cylinders of the engine can be controlled to carry out ignition combustion to do work according to the actually required power, and other cylinders do not carry out ignition combustion, so that the engine achieves higher thermal efficiency.
Wherein, the proportion of the number of cylinders in which combustion is ignited to the total number of cylinders of the engine can be expressed as an activation proportion. During specific implementation, the activation proportion of the engine is determined according to the current operation condition of the engine, namely the number of cylinders needing ignition and combustion is determined.
In a possible implementation manner, the activation ratio of the engine may be preliminarily calibrated through experiments, that is, the operation condition of the engine corresponds to a specific activation ratio, and the corresponding relationship between the operation condition and the activation ratio is calibrated through experiments. The operation condition of the engine may include a rotation speed and a required torque of the engine, the rotation speed of the engine is less than or equal to a preset rotation speed, and the required torque is less than or equal to a preset required torque. Different speeds and torque demands, corresponding to specific activation ratios.
In the ignition control method provided by the embodiment, the cylinders needing ignition combustion are determined according to the rotating speed and the required torque of the engine, and certain cylinders are controlled not to combust so as to improve the thermal efficiency of the engine. Therefore, if the rotating speed or the required torque of the engine exceeds a certain range, only part of the cylinders are controlled to burn and do work, and the power requirement of the engine cannot be met, at the moment, the engine cannot be operated according to the method, and normal operation needs to be realized according to other preset ignition control methods in an engine controller.
S102: according to the activation proportion, the ignition sequence of each cylinder of the engine is determined, and an ignition mark of each cylinder is generated.
After the activation proportion of the engine is determined, the ignition sequence of each cylinder of the engine is determined according to the determined activation proportion, and the ignition mark of each cylinder is generated according to the ignition sequence of each cylinder of the engine.
In order to maintain balance during two revolutions of the crankshaft, i.e., 720 degrees, in one engine cycle, the firing interval angles of the cylinders are required to be equal, i.e., 120 degrees for each cylinder in a six-cylinder engine. In the prior art, 6 cylinders of a six-cylinder engine need to be ignited to do work, and the ignition sequence of each cylinder is 1-5-3-6-2-4 generally.
In the present embodiment, the activation ratio is first determined based on the current speed and the required torque of the engine, assuming that the activation ratio of the engine is 4/6, i.e., 4 cylinders require ignition combustion and 2 cylinders do not ignite combustion.
The embodiment of the application does not limit the specific way of determining the cylinder for igniting combustion, and one possible implementation way is to select the way of cylinder deactivation as random determination. Since 4 cylinders need to be ignited for combustion and the other 2 cylinders do not ignite for combustion, the engine can randomly select 2 cylinders from the 6 cylinders, and the cylinders are deactivated for non-ignition in the working cycle, for example, the randomly selected non-ignition cylinders can be 1 cylinder and 6 cylinders, and also can be 5 cylinders and 2 cylinders. When the cylinder numbers of cylinder deactivation are 1 cylinder and 6 cylinders, the corresponding ignition sequence is 5-3-2-4; when the cylinder numbers of cylinder deactivation are 5 cylinders and 2 cylinders, the corresponding ignition sequence is 1-3-6-4.
In addition, if a certain cylinder of the engine is in a non-ignition state all the time if the cylinder deactivation time is longer, the cylinder can be controlled to carry out ignition combustion in the working cycle.
After the firing order of each cylinder is determined, a corresponding firing flag is generated. For example, if the engine has a firing order of 5-3-2-4, then the firing indicators for 1 cylinder and 6 cylinders are misfire, and the firing indicators for 5 cylinders, 3 cylinders, 2 cylinders, and 4 cylinders are firing.
In addition, the present embodiment may also set an ignition flag of the cylinder to indicate whether the cylinder ignites or misfires. When the ignition flag bit of the cylinder is 0, indicating that the cylinder is deactivated and not ignited; when the ignition flag bit of the cylinder is 1, the cylinder is indicated to need to be ignited for combustion. For example, when the engine has an ignition sequence of 5-3-2-4, the ignition flags for each cylinder are generated as: the ignition flag bits of 1 cylinder and 6 cylinders are 0, and the ignition flag bits of 5 cylinders, 3 cylinders, 2 cylinders and 4 cylinders are 1.
It should be noted that the manner of generating the ignition flag provided in the above embodiments is only an exemplary implementation manner, and is not limited to the above implementation manner.
S103: and aiming at any cylinder, generating an ignition control command according to the ignition mark of the cylinder so that the engine executes corresponding operation according to the ignition control command.
Taking the ignition sequence of a six-cylinder engine as 5-3-2-4 as an example, the ignition marks corresponding to 1 cylinder and 6 cylinders are not ignited, and generating an ignition control instruction corresponding to the non-ignition of the cylinders; ignition marks of 5 cylinders, 3 cylinders, 2 cylinders and 4 cylinders are ignition, and ignition control commands corresponding to the ignition of the cylinders are generated.
In a possible implementation manner, for 5 cylinders, 3 cylinders, 2 cylinders or 4 cylinders, the ignition mark of the cylinder is ignition, and the generated ignition control instruction is normal opening and closing of the intake valve, fuel injection of the fuel injector and normal opening and closing of the exhaust valve.
When the ignition mark of the cylinder is ignition, the engine controls the opening of an intake valve of the cylinder, and the piston moves from the top dead center to the bottom dead center along with the progress of an intake stroke. When the piston moves to the position near the bottom dead center, the air inlet valve is closed, the piston moves upwards, and the air in the air cylinder is compressed. When the compression stroke is about to end, the fuel injector injects fuel into the cylinder to ignite the gas in the cylinder. After the cylinder is ignited and combusted, the gas pushes the piston to move down rapidly, and the crank-connecting rod mechanism is used for doing work outwards. When the working stroke is about to end, the exhaust valve is opened, the piston moves towards the top dead center to discharge the waste gas in the cylinder, and after the exhaust stroke is finished, the exhaust valve is closed.
In one possible implementation, for 1 cylinder or 6 cylinders, the ignition flag of the cylinder is not ignited, and the generated ignition control command is no fuel injection, the exhaust valve is closed, that is, fuel is not injected into the cylinder, and the exhaust valve is kept in a closed state.
Further, when the ignition mark of the cylinder is not ignited, whether the cylinder is ignited in the last working cycle can be judged, if the cylinder is ignited in the last working cycle, and the ignition mark is not ignited in the current working cycle, the control commands of normal opening and closing of the intake valve, no oil injection and closing of the exhaust valve can be generated. And in the current working cycle, even if the cylinder does not carry out ignition combustion, the cylinder can be controlled to open the intake valve, suck gas and move the piston downwards until the piston moves to the bottom dead center and close the intake valve. The piston then moves upward to compress the gas, but controls the injector to not inject the gas during the compression stroke, i.e., the gas in the cylinder does not ignite and burn, and keeps the exhaust valve closed. Thus, in subsequent operating cycles, when the ignition flag for that cylinder becomes fired, a signal to inject fuel may be sent directly to the injector.
When the ignition control command is generated according to the ignition flag of each cylinder, one possible implementation manner is to determine the cylinder in the exhaust stroke according to the position of the crankshaft and the position of the camshaft, and generate the corresponding ignition control command according to the ignition flag of the cylinder in the exhaust stroke.
In one working cycle of the six-cylinder engine, the crankshaft confirms whether the next cylinder needs to be ignited and combusted every 120 degrees, and when the cylinder is in an exhaust stroke, the work doing process of the cylinder is proved to be about to end, so that the ignition mark of the cylinder in the exhaust stroke can be judged firstly, and a corresponding control command is generated according to the ignition mark of the cylinder. If the ignition flag for that cylinder is firing, a corresponding control command may be generated. After the last exhaust stroke of the cylinder is finished, ignition combustion can be realized according to a newly generated ignition control instruction, and the waiting time of the engine is reduced.
If the cylinder in the exhaust stroke is not selected in advance, if the next cylinder needing ignition judgment is determined to be in the compression stroke according to the position of the crankshaft and the position of the camshaft, and the new ignition mark corresponding to the cylinder is ignition, the cylinder needs to wait for the re-ignition combustion after the exhaust stroke of the cylinder is finished, and the thermal efficiency of the engine is influenced.
According to the ignition control method of the engine, the cylinders needing ignition and combustion are determined according to the operation working condition of the engine, all the cylinders do not need to be controlled to be ignited and combusted, and the heat efficiency of the engine is improved.
Based on the above embodiment, the embodiment of the application also provides an ignition control method of the engine.
Referring to fig. 2, fig. 2 is a flowchart of another ignition control method of the engine in the embodiment of the present application.
The method specifically comprises the following steps:
s201: the ignition control mode is initialized.
In one possible implementation, the ignition control method is preset to an ignition control mode, and when the rotation speed and the torque of the engine are within a preset range, the requirement of the ignition control mode is met, namely the ignition control mode is initialized, and the ignition control method is executed.
S202: the activation ratio is selected from a look-up table.
The look-up table item is a table for storing the corresponding relation between the operation condition and the activation proportion of the engine, and the corresponding relation between the operation condition and the activation proportion of the engine can be calibrated in advance through experiments. Under the specific rotating speed and the required torque, the corresponding activation proportion can be selected through a table look-up method.
S203: based on the activation ratio, the firing order of each cylinder is determined.
S204: based on the firing sequence, a cylinder deactivation valve is opened for the deactivated cylinders.
In one possible implementation, the cylinder deactivation valve is opened when a cylinder is not firing in the firing sequence, which may be the closing of the intake and exhaust valves.
S205: the cylinders that are not deactivated are ignited based on the ignition sequence.
S206: it is determined whether the rotation speed or the required torque is out of the range of the ignition control mode.
S207: if the range of the ignition control mode is not exceeded, it is determined whether the rotational speed and the torque have changed, and if so, the activation ratio is selected again from the table lookup.
S208: and if the range of the ignition control mode is exceeded, exiting the ignition control mode.
In a specific implementation, when the ignition mark of the cylinder is ignition, an ignition control instruction for normally opening and closing the intake valve, injecting fuel by the fuel injector, and normally opening and closing the exhaust valve is generated.
When the ignition flag of a cylinder is not ignited, whether the cylinder is ignited in the last working cycle can also be judged. If the cylinder is ignited in the last working cycle, generating ignition control instructions of normal opening and closing of the intake valve, no oil injection and closing of the exhaust valve; if the cylinder was not fired in the last working cycle, a no fuel injection and exhaust valve closed firing control command is generated.
Based on the above, the embodiment of the application also provides an ignition control method of the engine.
Referring to fig. 3, fig. 3 is a flowchart of an ignition control method of another engine according to an embodiment of the present application.
The method specifically comprises the following steps:
s301: initializing an ignition control mode;
s302: selecting an activation proportion from a table look-up item, and determining the ignition sequence of each cylinder;
s303: checking the rotation angle positions of the crankshaft and the camshaft;
s304: calculating an ignition flag of each cylinder based on the ignition sequence;
s305: when the ignition mark of the ith cylinder is ignition, controlling the engine to open an intake valve, inject combustion oil and open an exhaust valve;
s306: when the ignition mark of the ith cylinder is not ignited, judging whether the ith cylinder is ignited in the last ignition cycle; if so, controlling the engine to open an intake valve, not inject fuel for combustion and not open an exhaust valve; otherwise, controlling the engine to keep the air inlet valve closed, not injecting oil for combustion and not opening the exhaust valve;
s307: judging whether the rotating speed or the required torque exceeds the range of the ignition control mode;
s308: if the range of the ignition control mode is not exceeded, judging whether the rotating speed and the torque change, and if so, selecting the activation proportion from the table look-up item again;
s309: and if the range of the ignition control mode is exceeded, exiting the ignition control mode.
According to the ignition control method of the engine, the cylinders needing ignition and combustion are determined according to the operation condition of the engine, all the cylinders do not need to be controlled to be ignited and combusted, whether the cylinder in the exhaust stroke is ignited or not is controlled first, the waiting time of the engine is shortened, and the heat efficiency of the engine is improved. Based on the ignition control method provided by the method embodiment, the embodiment of the application also provides an ignition control device of the engine. Referring to fig. 4, fig. 4 is a schematic diagram of an ignition control device of an engine according to an embodiment of the present application.
The apparatus 400 comprises: an activation control module 401, a first ignition control module 402, and a second ignition control module 403;
the activation control module 401 is configured to determine an activation ratio of the engine based on an operation condition of the engine, where the activation ratio is a ratio of the number of cylinders for ignition combustion to the total number of cylinders of the engine;
the first ignition control module 402 is used for determining the ignition sequence of each cylinder of the engine according to the activation proportion and generating an ignition mark of each cylinder;
and a second ignition control module 403, configured to generate an ignition control instruction for any cylinder according to an ignition flag of the cylinder, so that the engine performs a corresponding operation according to the ignition control instruction.
The activation control module 401 is specifically configured to determine an activation ratio of the engine based on a rotational speed of the engine, which is less than or equal to a preset rotational speed, and a requested torque, which is less than or equal to a preset requested torque. The activation control module 401 controls the engine to perform a preset ignition control method when a rotational speed or a required torque of the engine exceeds a preset range.
A second ignition control module 403, specifically configured to determine a cylinder in an exhaust stroke based on a position of the crankshaft and a position of the camshaft; an ignition control command is generated based on the ignition flag of the cylinder in the exhaust stroke.
The second ignition control module 403 is specifically configured to generate an ignition control instruction for normally opening and closing an intake valve, injecting fuel by a fuel injector, and normally opening and closing an exhaust valve when an ignition flag of the cylinder is ignition; and when the ignition mark of the cylinder is not ignited, generating an ignition control command without fuel injection and with the exhaust valve closed.
When the ignition mark of the cylinder is not ignited, the second ignition control module 403 is further configured to determine whether the cylinder is ignited in the previous working cycle, and when the cylinder is ignited in the previous working cycle, generate an ignition control instruction for normally opening and closing the intake valve.
According to the ignition control method of the engine, the part of the cylinders needing ignition and combustion are determined according to the operation condition of the engine, all the cylinders do not need to be controlled to burn, and the heat efficiency of the engine is improved. And can judge whether the cylinder in the exhaust stroke is ignited or not, reduce the waiting time of the engine,
based on the above method embodiment and device embodiment, the present application embodiment also provides an ignition control apparatus for an engine, the apparatus comprising: a memory and a processor.
Referring to fig. 5, fig. 5 is a schematic diagram of an ignition control apparatus of an engine in an embodiment of the present application.
The apparatus 500 comprises: a memory 501 and a processor 502;
a memory 501 for storing associated program code;
and the processor 502 is used for calling the program codes and executing the ignition control method of the engine provided by the method embodiment.
In addition, the embodiment of the application also provides a computer readable storage medium which is used for storing a computer program which is used for executing the ignition control method of the engine provided by the method embodiment.
It should be noted that the terms "first" and "second" are used herein to distinguish similar objects and are not used to describe a particular order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances and are merely descriptive of the various embodiments of the application and how objects of the same nature can be distinguished.
The embodiments in the present specification are described in a progressive manner, and similar parts between the embodiments may be referred to each other, and each embodiment focuses on differences from other embodiments. In particular, for the device embodiment, since it is substantially similar to the method embodiment, it is described relatively simply, and the relevant portions can be referred to the partial description of the method embodiment. The above-described embodiments of the apparatus are merely illustrative, where units or modules described as separate components may or may not be physically separate, and components displayed as the units or modules may or may not be physical modules, that is, may be located in one place, or may also be distributed on multiple network units, and some or all of the units or modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only exemplary of the present application and is not intended to limit the present application in any way. Equivalent changes or modifications of the above embodiments are within the scope of the present application.
Claims (10)
1. An ignition control method of an engine, characterized by comprising:
determining an activation proportion of the engine based on the operation condition of the engine, wherein the activation proportion is the ratio of the number of cylinders for ignition combustion to the total number of cylinders of the engine;
determining the ignition sequence of each cylinder of the engine according to the activation proportion, and generating an ignition mark of each cylinder;
and aiming at any one cylinder, generating an ignition control instruction according to the ignition mark of the cylinder so that the engine can execute corresponding operation according to the ignition control instruction.
2. The method of claim 1, wherein generating an ignition control command based on an ignition flag of the cylinder comprises:
and when the ignition mark of the cylinder is ignition, generating ignition control instructions of normal opening and closing of the intake valve, fuel injection of the fuel injector and normal opening and closing of the exhaust valve.
3. The method of claim 1, wherein generating an ignition control command based on an ignition flag of the cylinder comprises:
and when the ignition mark of the cylinder is not ignited, generating an ignition control command without fuel injection and with an exhaust valve closed.
4. The method of claim 3, further comprising:
judging whether the cylinder is ignited in the last working cycle;
and when the cylinder is ignited in the last working cycle, generating an ignition control command for normally opening and closing the intake valve.
5. The method of claim 1, wherein generating an ignition control command based on an ignition flag of the cylinder comprises:
determining a cylinder in an exhaust stroke according to the position of the crankshaft and the position of the camshaft;
and generating an ignition control command according to the ignition mark of the cylinder in the exhaust stroke.
6. The method of claim 1, wherein determining the activation ratio of the engine based on the operating conditions of the engine comprises:
the activation proportion of the engine is determined based on the rotating speed of the engine and the required torque, wherein the rotating speed is less than or equal to a preset rotating speed, and the required torque is less than or equal to a preset required torque.
7. The method of claim 6, further comprising:
and when at least one of the rotating speed is greater than the preset rotating speed or the required torque is greater than the preset required torque is met, the engine executes a preset ignition control method.
8. An ignition control apparatus of an engine, characterized in that the apparatus comprises: the ignition control system comprises an activation control module, a first ignition control module and a second ignition control module;
the activation control module is used for determining the activation proportion of the engine based on the operation working condition of the engine, wherein the activation proportion is the ratio of the number of cylinders for ignition combustion to the total number of cylinders of the engine;
the first ignition control module is used for determining the ignition sequence of each cylinder of the engine according to the activation proportion and generating an ignition mark of each cylinder;
and the second ignition control module is used for generating an ignition control instruction according to the ignition mark of the cylinder aiming at any cylinder so as to facilitate the engine to execute corresponding operation according to the ignition control instruction.
9. An ignition control apparatus of an engine, characterized by comprising: a memory and a processor;
the memory for storing associated program code;
the processor, configured to invoke the program code, to execute the method of any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium is used to store a computer program for performing the method of any of claims 1 to 7.
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| CN202111519394.8A CN113915040A (en) | 2021-12-14 | 2021-12-14 | Ignition control method, device and equipment of engine and storage medium |
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| CN202111519394.8A CN113915040A (en) | 2021-12-14 | 2021-12-14 | Ignition control method, device and equipment of engine and storage medium |
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| CN202111519394.8A Pending CN113915040A (en) | 2021-12-14 | 2021-12-14 | Ignition control method, device and equipment of engine and storage medium |
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| CN114382629A (en) * | 2022-03-23 | 2022-04-22 | 潍柴动力股份有限公司 | Engine control method, device, equipment and storage medium |
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