CN113074049A - Engine cylinder deactivation control method and device, storage medium and electronic equipment - Google Patents
Engine cylinder deactivation control method and device, storage medium and electronic equipment Download PDFInfo
- Publication number
- CN113074049A CN113074049A CN202110366043.1A CN202110366043A CN113074049A CN 113074049 A CN113074049 A CN 113074049A CN 202110366043 A CN202110366043 A CN 202110366043A CN 113074049 A CN113074049 A CN 113074049A
- Authority
- CN
- China
- Prior art keywords
- cylinder deactivation
- engine
- delay time
- angle
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
- F02D17/02—Cutting-out
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention provides a cylinder deactivation control method and device for an engine, a storage medium and an electronic device, wherein the method comprises the following steps: acquiring a delay time set of the engine, calculating the total delay time of the engine based on each delay time in the delay time set, and converting the total delay time into a delay angle; obtaining a cylinder deactivation control angle of the engine based on the cylinder deactivation required angle and the delay angle of the engine; acquiring a current cylinder deactivation angle of the engine, and determining an operation mode of a cylinder deactivation mechanism based on a cylinder deactivation control angle and the current cylinder deactivation angle; and generating a control command corresponding to the operation mode, and controlling the cylinder deactivation mechanism to execute the cylinder deactivation operation corresponding to the control command. When the cylinder stopping mechanism of the engine is controlled, the total delay time of the engine is converted into the delay angle, and the cylinder stopping mechanism of the engine is controlled according to the delay angle, so that the condition that the cylinder stopping mechanism is controlled inaccurately due to delay is avoided, the part abrasion of the engine is reduced, and the service life of the engine is prolonged.
Description
Technical Field
The present invention relates to the field of vehicle engine technologies, and in particular, to a cylinder deactivation control method and apparatus for an engine, a storage medium, and an electronic device.
Background
The cylinder deactivation technology can also be called as variable displacement technology, and is characterized in that when an engine moves partially in accordance with the engine, fuel supply, ignition, air intake and exhaust of partial cylinders are cut off through related mechanisms, the work of the engine is stopped, the load factor of the residual working cylinders is increased, the efficiency is improved, and the fuel consumption is reduced.
The cylinder deactivation control method applied at present does not generally consider the delay time of the cylinder deactivation mechanism in the process of realizing the cylinder deactivation operation, so that the control on the cylinder deactivation operation is not accurate, the damage to an intake valve and an exhaust valve of an engine is easily caused, and the service life of the engine is shortened.
Disclosure of Invention
In view of this, the present invention provides a cylinder deactivation control method and apparatus for an engine, a storage medium, and an electronic device, which are used to accurately control a cylinder deactivation mechanism of the engine, reduce parts that damage the engine, and prolong the service life of the engine.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
a cylinder deactivation control method of an engine, comprising:
acquiring a delay time set of an engine, wherein the delay time set comprises at least one delay time;
calculating a total delay time of the engine based on the delay times in the set of delay times;
converting the total delay time into a delay angle of the engine;
determining a cylinder deactivation required angle of the engine, and obtaining a cylinder deactivation control angle of the engine based on the cylinder deactivation required angle and the delay angle;
acquiring a current cylinder deactivation angle of the engine, and determining an operation mode of a cylinder deactivation mechanism of the engine based on the cylinder deactivation control angle and the current cylinder deactivation angle;
and generating a control command corresponding to the operation mode, and controlling the cylinder deactivation mechanism to execute the cylinder deactivation operation corresponding to the control command.
The method described above, optionally, the obtaining a set of delay times of the engine, includes:
acquiring pin delay time and instruction generation delay time of the engine based on hardware parameters of the engine and system parameters of a control system;
acquiring the current environment temperature, the engine oil pressure and the engine oil temperature of the engine, and determining the relay delay time, the hydraulic delay time and the mechanical delay time of the engine based on the environment temperature, the engine oil pressure and the engine oil temperature;
grouping the pin delay time, the command generation delay time, the relay delay time, the hydraulic delay time, and the mechanical delay time into a set of delay times for the engine.
The method described above, optionally, wherein determining the relay delay time, the hydraulic delay time, and the mechanical delay time of the engine based on the ambient temperature, the oil pressure, and the oil temperature comprises:
traversing each preset environment temperature in a preset relay delay table according to the environment temperature, determining the preset environment temperature which is the same as the environment temperature as a target environment temperature, and taking the delay time corresponding to the target environment temperature as the relay delay time of the engine;
taking the engine oil pressure and the engine oil temperature as engine oil parameter combinations, traversing the engine oil parameter combinations through each preset parameter combination in a preset hydraulic delay table, taking the preset parameter combinations corresponding to the engine oil parameter combinations as target combinations, and taking delay time corresponding to the target combinations as hydraulic delay time of the engine;
and traversing each preset engine oil temperature in a preset mechanical delay time table, determining the preset engine oil temperature corresponding to the engine oil temperature as a target engine oil temperature, and taking the delay time corresponding to the target engine oil temperature as the mechanical delay time of the engine.
The method above, optionally, wherein determining the operating mode of the cylinder deactivation mechanism of the engine based on the cylinder deactivation control angle and the current cylinder deactivation angle comprises:
judging whether the current cylinder deactivation angle is larger than or equal to the cylinder deactivation control angle;
if the current cylinder deactivation angle is larger than or equal to the cylinder deactivation control angle, determining that the operation mode of a cylinder deactivation mechanism of the engine is a state mode allowing to be changed;
and if the current cylinder deactivation angle is smaller than the cylinder deactivation control angle, determining that the operation mode of a cylinder deactivation mechanism of the engine is a holding state mode.
The method described above, wherein, when the operation mode of the cylinder deactivation mechanism of the engine is the state mode allowing change, the generating of the control command corresponding to the operation mode includes:
acquiring operating parameters of the engine, and determining whether a cylinder deactivation state change requirement exists in the cylinder deactivation mechanism based on the operating parameters;
if the cylinder deactivation mechanism has the requirement for changing the cylinder deactivation state, generating a control instruction for indicating the cylinder deactivation mechanism to change the current cylinder deactivation state;
and if the cylinder deactivation mechanism does not have the cylinder deactivation state change requirement, generating a control instruction for indicating the cylinder deactivation mechanism to maintain the current cylinder deactivation state.
Optionally, the method, when the operation mode of the cylinder deactivation mechanism is the holding state mode, generating the control command corresponding to the operation mode includes:
and generating a control command for indicating that the cylinder deactivation mechanism maintains the current cylinder deactivation state.
A cylinder deactivation control apparatus of an engine, comprising:
the device comprises a first acquisition unit, a second acquisition unit and a control unit, wherein the first acquisition unit is used for acquiring a delay time set of an engine, and the delay time set comprises at least one delay time;
a calculation unit configured to calculate a total delay time of the engine based on each of the delay times in the set of delay times;
a conversion unit for converting the total delay time into a delay angle of the engine;
the determining unit is used for determining a cylinder deactivation required angle of the engine and obtaining a cylinder deactivation control angle of the engine based on the cylinder deactivation required angle and the delay angle;
a second acquisition unit configured to acquire a current cylinder deactivation angle of the engine and determine an operation mode of a cylinder deactivation mechanism of the engine based on the cylinder deactivation control angle and the current cylinder deactivation angle;
and the generating unit is used for generating a control instruction corresponding to the operation mode and controlling the cylinder deactivation mechanism to execute the cylinder deactivation operation corresponding to the control instruction.
The above apparatus, the first obtaining unit, includes:
the first acquisition subunit is used for acquiring pin delay time and instruction generation delay time of the engine based on hardware parameters of the engine and system parameters of a control system;
the second acquisition subunit is used for acquiring the current ambient temperature, the oil pressure and the oil temperature of the engine and determining the relay delay time, the hydraulic delay time and the mechanical delay time of the engine based on the ambient temperature, the oil pressure and the oil temperature;
a composing subunit operable to compose the pin delay time, the command generation delay time, the relay delay time, the hydraulic delay time, and the mechanical delay time into a delay time set of the engine.
The above apparatus, the second obtaining subunit, includes:
the first traversal module is used for traversing the environment temperature to each preset environment temperature in a preset relay delay table, determining the preset environment temperature which is the same as the environment temperature as a target environment temperature, and taking the delay time corresponding to the target environment temperature as the relay delay time of the engine;
the second traversal module is used for taking the engine oil pressure and the engine oil temperature as engine oil parameter combinations, traversing each preset parameter combination in a preset hydraulic delay table by the engine oil parameter combinations, taking the preset parameter combination corresponding to the engine oil parameter combination as a target combination, and taking delay time corresponding to the target combination as hydraulic delay time of the engine;
and the third traversal module is used for traversing each preset engine oil temperature in a preset mechanical delay time table, determining the preset engine oil temperature corresponding to the engine oil temperature as a target engine oil temperature, and taking the delay time corresponding to the target engine oil temperature as the mechanical delay time of the engine.
In the foregoing apparatus, the second obtaining unit includes:
the judging subunit is used for judging whether the current cylinder deactivation angle is larger than or equal to the cylinder deactivation control angle;
the first determining subunit is used for determining that the operation mode of a cylinder deactivation mechanism of the engine is a state mode allowing to be changed if the current cylinder deactivation angle is larger than or equal to the cylinder deactivation control angle;
and the second determining subunit is used for determining that the operation mode of the cylinder deactivation mechanism of the engine is a holding state mode if the current cylinder deactivation angle is smaller than the cylinder deactivation control angle.
The above apparatus, the generating unit, includes:
the third acquisition subunit is used for acquiring the operating parameters of the engine and determining whether the cylinder deactivation mechanism has a cylinder deactivation state change requirement or not based on the operating parameters;
the first generation subunit is used for generating a control instruction for instructing the cylinder deactivation mechanism to change the current cylinder deactivation state if the cylinder deactivation mechanism needs to change the cylinder deactivation state;
and the second generation subunit is used for generating a control instruction for indicating the cylinder deactivation mechanism to maintain the current cylinder deactivation state if the cylinder deactivation mechanism has no requirement for changing the cylinder deactivation state.
The above apparatus, the generating unit, includes:
and the third generation subunit is used for generating a control instruction for instructing the cylinder deactivation mechanism to maintain the current cylinder deactivation state.
A storage medium characterized by comprising stored instructions, wherein a device on which the storage medium is located is controlled to execute the engine cylinder deactivation control method as described above when the instructions are executed.
An electronic device comprising a memory, and one or more instructions, wherein the one or more instructions are stored in the memory and configured to be executed by one or more processors to perform a method of cylinder deactivation control of an engine as described above.
Compared with the prior art, the invention has the following advantages:
the invention provides a cylinder deactivation control method and device for an engine, a storage medium and an electronic device, wherein the method comprises the following steps: acquiring a delay time set of the engine, calculating the total delay time of the engine based on the delay time set, and converting the total delay time into a delay angle; obtaining a cylinder deactivation control angle of the engine based on the cylinder deactivation required angle and the delay angle of the engine; acquiring a current cylinder deactivation angle of the engine, and determining an operation mode of a cylinder deactivation mechanism of the engine based on the cylinder deactivation control angle and the current cylinder deactivation angle; and generating a control command corresponding to the operation mode, and controlling the cylinder deactivation mechanism to execute the cylinder deactivation operation corresponding to the control command. The method comprises the steps of determining the total delay time of an engine, converting the total delay time into a delay angle of the engine, determining a cylinder deactivation control angle of the engine based on the delay angle of the engine and a cylinder deactivation requirement angle, generating a control command after determining an operation mode of a cylinder deactivation mechanism of the engine according to the cylinder deactivation control angle, and controlling the cylinder deactivation mechanism to execute corresponding cylinder deactivation operation according to the control command, so that the cylinder deactivation mechanism can be controlled more accurately, the influence of delay on an intake valve and an exhaust valve of the engine can be eliminated, the part wear of the engine is reduced, and the service life of the engine is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flowchart illustrating a method for controlling cylinder deactivation of an engine according to an exemplary embodiment of the present disclosure;
FIG. 2 is a flowchart illustrating a method for controlling cylinder deactivation of an engine according to an exemplary embodiment of the present disclosure;
FIG. 3 is a flowchart illustrating another method for controlling cylinder deactivation of an engine according to an exemplary embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a cylinder deactivation control apparatus for an engine according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The method provided by the invention can be applied to a control system of an engine or a control system in a vehicle, an execution subject of the invention can be a processor or a controller in the control system, and referring to fig. 1, a method flowchart of a cylinder deactivation control method of the engine provided by the embodiment of the invention is specifically described as follows:
s101, obtaining a delay time set of the engine, wherein the delay time set comprises at least one delay time.
In the method provided by the invention, the method provided by the invention can be applied when the vehicle is started, when the delay time set of the engine is obtained, the delay time set of the engine can be obtained periodically, for example, the delay time set of the engine is obtained according to a preset time step, the time step can be set according to actual requirements, for example, the time step is set to be 2 seconds, and the delay time set of the engine is obtained every 2 seconds.
The set of delay times includes at least one delay time, each delay time being indicative of a delay of the engine in a different aspect.
And S102, calculating the total delay time of the engine based on the delay times in the delay time set.
And summing the delay times to obtain the total delay time of the engine.
And S103, converting the total delay time into a delay angle of the engine.
Acquiring the current engine speed of the engine through a sensor, and processing the engine speed and the total delay time to obtain a delay angle of the engine; when the engine speed and the total delay time are processed, the engine speed and the total delay time can be substituted into a preset conversion formula for calculation, and a value output by the conversion formula is used as a delay angle of the engine.
Further, the conversion formula is specifically as follows: AngDly dly d y a b c TGeneral assembly(ii) a Wherein AngDly represents a retardation angle; npm represents the engine speed; t isGeneral assemblyRepresents the total delay time; a. b and c are preset constants, wherein a is a preset angle and the unit is degree; c is preset time in seconds; preferably, a may be set to 720 degrees, b may be set to 2, and c may be set to 60 seconds.
S104, determining a cylinder deactivation required angle of the engine, and obtaining a cylinder deactivation control angle of the engine based on the cylinder deactivation required angle and the delay angle.
And acquiring the current engine fuel injection quantity of the engine, and determining the cylinder deactivation required angle of the engine according to the engine fuel injection quantity and the engine speed, wherein the engine speed is the engine speed in S103.
The method comprises the steps of determining the current working condition of an engine according to the fuel injection quantity and the rotating speed of the engine, determining the cylinder deactivation required angle of the engine according to the current working condition of the engine, and further determining different cylinder deactivation required angles under different working conditions. The method comprises the steps of taking the fuel injection quantity of an engine and the rotating speed of the engine as a first parameter combination, traversing each preset parameter combination in a preset cylinder deactivation angle table through the first parameter combination, determining the preset parameter combination corresponding to the first parameter combination as a target parameter combination, and determining the angle corresponding to the target parameter combination as a cylinder deactivation required angle of the engine. Preferably, when a cylinder deactivation mechanism of the engine is in a cylinder deactivation opening state, the cylinder deactivation required angle can be a cylinder deactivation closing required angle; when a cylinder deactivation mechanism of the engine is in a cylinder deactivation off state, the required cylinder deactivation angle may be a required cylinder deactivation on angle.
The cylinder deactivation angle table comprises a plurality of preset parameter combinations, each preset parameter combination comprises preset engine fuel injection quantity and preset engine rotating speed, and each preset parameter combination has an angle corresponding to the preset parameter combination, wherein the preset engine fuel injection quantity in the target parameter combination is the same as the engine fuel injection quantity in the first parameter combination, and the preset engine rotating speed in the target parameter combination is the same as the engine rotating speed in the first parameter combination.
S105, acquiring a current cylinder deactivation angle of the engine, and determining an operation mode of a cylinder deactivation mechanism of the engine based on the cylinder deactivation control angle and the current cylinder deactivation angle.
In the method provided by the embodiment of the invention, the current cylinder deactivation angle of the engine can be obtained through a sensor, or the current cylinder deactivation angle of the engine can be determined through data records in a controller. The operation mode is a mode for operating a cylinder deactivation mechanism of the engine and is determined by a cylinder deactivation control angle and a current cylinder deactivation angle.
And S106, generating a control command corresponding to the operation mode, and controlling the cylinder deactivation mechanism to execute the cylinder deactivation operation corresponding to the control command.
According to the method provided by the embodiment of the invention, the control instruction is used for controlling the cylinder deactivation mechanism to execute the corresponding cylinder deactivation operation, wherein the cylinder deactivation operation is divided into the cylinder activation operation and the cylinder deactivation shutdown operation, and the cylinder deactivation mechanism can be controlled to execute the corresponding operation according to the control instruction, so that the fuel supply of the cylinder can be controlled, and the fuel consumption of the vehicle in the running process is reduced.
In the method provided by the embodiment of the invention, a delay time set of an engine is obtained, the total delay time of the engine is calculated based on the delay time set, and the total delay time is converted into a delay angle; obtaining a cylinder deactivation control angle of the engine based on the cylinder deactivation required angle and the delay angle of the engine; acquiring a current cylinder deactivation angle of the engine, and determining an operation mode of a cylinder deactivation mechanism of the engine based on the cylinder deactivation control angle and the current cylinder deactivation angle; and generating a control command corresponding to the operation mode, and controlling the cylinder deactivation mechanism to execute the cylinder deactivation operation corresponding to the control command. The invention counts the total delay time of the engine, converts the total delay time into the delay angle of the engine, determines the cylinder deactivation control angle of the engine based on the delay angle of the engine and the cylinder deactivation demand angle, generates a control command after determining the operation mode of the cylinder deactivation mechanism of the engine according to the cylinder deactivation control angle, and controls the cylinder deactivation mechanism to execute the corresponding cylinder deactivation operation according to the control command, thereby more accurately controlling the cylinder deactivation mechanism, eliminating the influence of delay on the intake and exhaust valves of the engine, reducing the abrasion of the engine and prolonging the service life of the engine.
Referring to fig. 2, a flowchart of one method for acquiring a delay time set of a transmitter in the method provided by the present invention is specifically described as follows:
s201, acquiring pin delay time and command generation delay time of the engine based on hardware parameters of the engine and system parameters of a control system.
The hardware parameters of the engine comprise information which is not limited to a controller or a chip applied to the engine, and pin delay time of the engine is obtained according to the hardware parameters, wherein the pin delay time is consumed by outputting corresponding driving current after receiving a control command; the pin delay time of different controllers (or chips) is different, and the corresponding delay time can be known by testing the controllers (or chips) in advance.
Determining a command generation delay time of the engine according to system parameters of the control system, wherein the command generation delay time is the time consumed by the control system when calculating a control command; different control systems correspond to different instruction generation delay times, each control system can be tested in advance, so that the instruction generation delay time of each control system is obtained, and the corresponding instruction generation delay time can be determined through system parameters of the control systems.
S202, acquiring the current environment temperature, the oil pressure and the oil temperature of the engine, and determining the relay delay time, the hydraulic delay time and the mechanical delay time of the engine based on the environment temperature, the oil pressure and the oil temperature.
The ambient temperature, the engine oil pressure and the engine oil temperature of the engine obtained through the sensors are the current data of the engine, wherein different sensors collect different data, and the ambient temperature, the engine oil pressure and the engine oil temperature correspond to different sensors.
In the method provided by the invention, the locking valve in the cylinder deactivation mechanism is driven by engine oil, and the pressure and the temperature of the engine oil influence the flow of a hydraulic system of the engine, so that the hydraulic delay time is the drive delay of the engine oil on the locking valve of the cylinder deactivation mechanism; the machine delay time is the time delay of the locking valve in the cylinder deactivation mechanism due to factors such as mechanical response and friction.
The specific process of determining the relay delay time, hydraulic delay time, and mechanical delay time of the engine based on the ambient temperature, the oil pressure, and the oil pressure temperature is as follows:
traversing each preset environment temperature in a preset relay delay table according to the environment temperature, determining the preset environment temperature which is the same as the environment temperature as a target environment temperature, and taking the delay time corresponding to the target environment temperature as the relay delay time of the engine; the relay delay table comprises a plurality of preset environment temperatures, each preset environment temperature has corresponding delay time, and the delay time of different preset environment temperatures is different.
Taking the engine oil pressure and the engine oil temperature as engine oil parameter combinations, traversing the engine oil parameter combinations through each preset parameter combination in a preset hydraulic delay table, taking the preset parameter combinations corresponding to the engine oil parameter combinations as target combinations, and taking delay time corresponding to the target combinations as hydraulic delay time of the engine; the hydraulic delay table comprises a plurality of preset parameter combinations, each preset parameter combination has corresponding delay time, the delay time of different preset parameter combinations is different, and preset engine oil pressure and preset engine oil temperature are set in the preset parameter combinations; the preset oil pressure in the target combination is the same as the oil pressure in the oil parameter combination, and the preset oil temperature in the target combination is the same as the preset oil temperature in the oil parameter combination.
Traversing each preset engine oil temperature in a preset mechanical delay time table according to the engine oil temperature, determining the preset engine oil temperature corresponding to the engine oil temperature as a target engine oil temperature, and taking the delay time corresponding to the target engine oil temperature as the mechanical delay time of the engine; the mechanical delay time table is provided with a plurality of preset engine oil temperatures, each preset engine oil temperature has corresponding delay time, and the delay time of different preset engine oil temperatures is different.
Preferably, in the method provided by the present invention, when obtaining each delay time in the delay time set, each delay time may be sequentially obtained according to a preset obtaining sequence, where the obtaining sequence specifically may be: command generation delay time- > pin delay time- > relay delay time- > hydraulic delay time- > mechanical delay time. The acquisition sequence provided by the embodiment of the present invention is only an example of one of the sequences, the specific acquisition sequence may be set according to actual situations, and other types of acquisition sequences should also be within the scope of the present invention.
S203, combining the pin delay time, the command generation delay time, the relay delay time, the hydraulic delay time and the mechanical delay time into a delay time set of the engine.
The delay time set provided by the invention comprises the delay time of the engine in various aspects, and the delay time sets can comprehensively acquire various delay times of the engine, so that more comprehensive data support can be provided during analysis of cylinder deactivation control of the engine, and a cylinder deactivation mechanism for starting can be controlled more accurately.
Referring to fig. 3, an exemplary flowchart is provided for implementation of the present invention, which is specifically described as follows:
s301, obtaining delay time of each item of the engine.
And S302, summing the delay times to obtain the total delay time of the engine.
And S303, converting the total delay time into a delay angle of the engine.
S304, determining a cylinder deactivation required angle of the engine, and calculating the cylinder deactivation required angle and the delay angle to obtain a cylinder deactivation control angle of the engine.
And S305, acquiring the current cylinder deactivation angle of the engine.
For the descriptions of S301 to S304 in the present invention, reference may be made to the above descriptions herein, and further description thereof is omitted.
S306, judging whether the current cylinder deactivation angle is larger than or equal to the cylinder deactivation control angle; if the current cylinder deactivation angle is larger than or equal to the cylinder deactivation control angle, executing S307; if the current cylinder deactivation angle is smaller than the cylinder deactivation control angle, S308 is executed.
In the method provided by the embodiment of the invention, after the current cylinder deactivation angle of the engine is obtained, the operation mode of the cylinder deactivation mechanism of the engine can be determined based on the current cylinder deactivation angle and the cylinder deactivation control angle, specifically, the current cylinder deactivation angle is compared with the cylinder deactivation control angle to judge whether the current cylinder deactivation angle is greater than or equal to the cylinder deactivation control angle, and if the current cylinder deactivation angle is greater than or equal to the cylinder deactivation control angle, S307 is executed; if the current cylinder deactivation angle is smaller than the cylinder deactivation control angle, S308 is executed.
S307, determining the operation mode of the cylinder deactivation mechanism of the engine as a state mode allowing change.
The mode of the state allowed to be changed in the invention represents that the current cylinder deactivation state of the cylinder deactivation mechanism can be changed, for example, when the current cylinder deactivation state of the cylinder deactivation mechanism is a cylinder deactivation opening state, the mode of the state allowed to be changed represents that the cylinder deactivation state of the cylinder deactivation mechanism of the engine can be changed into a cylinder deactivation closing state when the operation mode of the engine is the mode of the state allowed to be changed; further, the state mode allowing to be changed indicates that the cylinder deactivation state of the cylinder deactivation mechanism is allowed to be changed currently, and whether the cylinder deactivation state of the cylinder deactivation mechanism is changed needs to be analyzed, and whether the engine needs to be changed.
And S308, determining the operation mode of the cylinder deactivation mechanism of the engine to be a holding state mode.
The holding state mode in the invention means that the current cylinder deactivation state of the cylinder deactivation mechanism is not changed, namely the holding state mode mark does not allow the cylinder deactivation state of the cylinder deactivation mechanism to be changed currently.
S309, obtaining operation parameters of the engine, and determining whether the cylinder deactivation mechanism has a cylinder deactivation state change requirement or not based on the operation parameters; if the cylinder deactivation mechanism has the requirement of changing the cylinder deactivation state, executing S310; if the cylinder deactivation mechanism does not have the cylinder deactivation state change requirement, S311 is executed.
When the operation mode of the cylinder deactivation mechanism of the engine is determined to be a mode allowing state change, acquiring operation parameters of the engine, wherein the operation parameters comprise but are not limited to parameters such as throttle position, engine speed, vehicle speed, gear position, water temperature and the like, judging whether the cylinder deactivation mechanism needs to change the cylinder deactivation state or not according to the operation parameters, and executing S301 when the cylinder deactivation state changing requirement exists; when there is no need to change the cylinder deactivation state, S311 is executed. Further, the cylinder deactivation state of the cylinder deactivation mechanism is divided into two states, namely cylinder activation and cylinder deactivation closing respectively.
And S310, generating a control command for instructing the cylinder deactivation mechanism to change the current cylinder deactivation state.
When the requirement for changing the cylinder deactivation state exists, generating a control instruction for indicating the cylinder deactivation mechanism to change the current cylinder deactivation state, wherein if the current cylinder deactivation state of the cylinder deactivation mechanism is the starting cylinder deactivation state, the generated control instruction is used for indicating the cylinder deactivation mechanism to change the cylinder deactivation state into the closing cylinder deactivation state; and if the current cylinder deactivation state of the cylinder deactivation mechanism is closed cylinder deactivation, the generated control instruction is used for instructing the cylinder deactivation mechanism to change the cylinder deactivation state to open cylinder deactivation.
And S311, generating a control command for instructing the cylinder deactivation mechanism to maintain the current cylinder deactivation state.
The control instruction generated here is used for instructing the cylinder deactivation mechanism to maintain the current cylinder deactivation state, for example, if the current cylinder deactivation state of the cylinder deactivation mechanism is that the cylinder deactivation mechanism is started, the control instruction generated here is used for instructing the cylinder deactivation mechanism to maintain that the cylinder deactivation mechanism is started; and if the current cylinder deactivation state of the cylinder deactivation mechanism is the closed cylinder deactivation, the generated control instruction is used for indicating the cylinder deactivation mechanism to keep closing the cylinder deactivation.
And S312, controlling the cylinder deactivation mechanism to execute the cylinder deactivation operation corresponding to the control command.
In the method provided by the embodiment of the invention, the cylinder deactivation operation corresponding to the control instruction is executed by controlling the cylinder deactivation mechanism to be divided into the following conditions:
1) when the control instruction indicates that the cylinder deactivation mechanism changes the current cylinder deactivation state, controlling the cylinder deactivation operation executed by the cylinder deactivation mechanism to be state change operation, namely changing the cylinder deactivation state of the cylinder deactivation mechanism to be cylinder closing deactivation if the current cylinder deactivation state of the cylinder deactivation mechanism is cylinder opening deactivation; if the current cylinder deactivation state of the cylinder deactivation mechanism is closing cylinder deactivation, changing the cylinder deactivation state of the cylinder deactivation mechanism into starting cylinder deactivation;
2) when the control instruction indicates that the cylinder deactivation mechanism keeps the current cylinder deactivation state, controlling the cylinder deactivation operation executed by the cylinder deactivation mechanism to be a keeping state operation, namely if the cylinder deactivation mechanism starts in the current cylinder deactivation state, keeping the cylinder deactivation state of the cylinder deactivation mechanism as starting and cylinder deactivation; and if the current cylinder deactivation state of the cylinder deactivation mechanism is the closed cylinder deactivation, keeping the cylinder deactivation state of the cylinder deactivation mechanism as the closed cylinder deactivation.
In the method provided by the embodiment of the invention, each delay time of the engine is obtained, the total delay time of the engine is calculated based on each delay time, and the total delay time is converted into a delay angle; determining a cylinder deactivation control angle of the engine according to the cylinder deactivation required angle and the delay angle of the engine; determining an operating mode of a cylinder deactivation mechanism of the engine based on a cylinder deactivation control angle of the engine and a current cylinder deactivation angle; generating a control instruction corresponding to the operation mode, and controlling a cylinder deactivation mechanism to execute the cylinder deactivation operation corresponding to the control instruction; the total delay time of the engine is converted into the delay angle, and the delay angle is used as one parameter of the cylinder deactivation mechanism for controlling the engine, so that the condition that the cylinder deactivation mechanism is not accurately controlled due to delay can be avoided, the precision of the cylinder deactivation mechanism is improved, further, the damage to related parts in the engine is reduced, and the service life of the engine is effectively prolonged.
Corresponding to fig. 1, the present invention provides a cylinder deactivation control device of an engine, which is used for supporting the application of the method shown in fig. 1 in practice, the present invention provides a device which can be applied to a control system or a control platform of a vehicle, and the structural schematic diagram of the device provided by the present invention is shown in fig. 4, and is specifically described as follows:
a first obtaining unit 401, configured to obtain a set of delay times of an engine, where the set of delay times includes at least one delay time;
a calculating unit 402 for calculating a total delay time of the engine based on each delay time in the set of delay times;
a conversion unit 403 for converting the total delay time into a delay angle of the engine;
a determining unit 404, configured to determine a cylinder deactivation required angle of the engine, and obtain a cylinder deactivation control angle of the engine based on the cylinder deactivation required angle and the delay angle;
a second obtaining unit 405 for obtaining a current cylinder deactivation angle of the engine, and determining an operation mode of a cylinder deactivation mechanism of the engine based on the cylinder deactivation control angle and the current cylinder deactivation angle;
a generating unit 406, configured to generate a control command corresponding to the operation mode, and control the cylinder deactivation mechanism to execute a cylinder deactivation operation corresponding to the control command.
In the device provided by the embodiment of the invention, a delay time set of the engine is obtained, the total delay time of the engine is calculated based on the delay time set, and the total delay time is converted into a delay angle; obtaining a cylinder deactivation control angle of the engine based on the cylinder deactivation required angle and the delay angle of the engine; acquiring a current cylinder deactivation angle of the engine, and determining an operation mode of a cylinder deactivation mechanism of the engine based on the cylinder deactivation control angle and the current cylinder deactivation angle; and generating a control command corresponding to the operation mode, and controlling the cylinder deactivation mechanism to execute the cylinder deactivation operation corresponding to the control command. The invention counts the total delay time of the engine, converts the total delay time into the delay angle of the engine, determines the cylinder deactivation control angle of the engine based on the delay angle of the engine and the cylinder deactivation demand angle, generates a control command after determining the operation mode of the cylinder deactivation mechanism of the engine according to the cylinder deactivation control angle, and controls the cylinder deactivation mechanism to execute the corresponding cylinder deactivation operation according to the control command, thereby more accurately controlling the cylinder deactivation mechanism, eliminating the influence of delay on the intake and exhaust valves of the engine, reducing the abrasion of the engine and prolonging the service life of the engine.
In the apparatus provided in the embodiment of the present invention, the first obtaining unit 401 may be configured to:
the first acquisition subunit is used for acquiring pin delay time and instruction generation delay time of the engine based on hardware parameters of the engine and system parameters of a control system;
the second acquisition subunit is used for acquiring the current ambient temperature, the oil pressure and the oil temperature of the engine and determining the relay delay time, the hydraulic delay time and the mechanical delay time of the engine based on the ambient temperature, the oil pressure and the oil temperature;
a composing subunit operable to compose the pin delay time, the command generation delay time, the relay delay time, the hydraulic delay time, and the mechanical delay time into a delay time set of the engine.
In the apparatus provided in the embodiment of the present invention, the second obtaining subunit may be configured to:
the first traversal module is used for traversing the environment temperature to each preset environment temperature in a preset relay delay table, determining the preset environment temperature which is the same as the environment temperature as a target environment temperature, and taking the delay time corresponding to the target environment temperature as the relay delay time of the engine;
the second traversal module is used for taking the engine oil pressure and the engine oil temperature as engine oil parameter combinations, traversing each preset parameter combination in a preset hydraulic delay table by the engine oil parameter combinations, taking the preset parameter combination corresponding to the engine oil parameter combination as a target combination, and taking delay time corresponding to the target combination as hydraulic delay time of the engine;
and the third traversal module is used for traversing each preset engine oil temperature in a preset mechanical delay time table, determining the preset engine oil temperature corresponding to the engine oil temperature as a target engine oil temperature, and taking the delay time corresponding to the target engine oil temperature as the mechanical delay time of the engine.
In the apparatus provided in the embodiment of the present invention, the second obtaining unit 405 may be configured to:
the judging subunit is used for judging whether the current cylinder deactivation angle is larger than or equal to the cylinder deactivation control angle;
the first determining subunit is used for determining that the operation mode of a cylinder deactivation mechanism of the engine is a state mode allowing to be changed if the current cylinder deactivation angle is larger than or equal to the cylinder deactivation control angle;
and the second determining subunit is used for determining that the operation mode of the cylinder deactivation mechanism of the engine is a holding state mode if the current cylinder deactivation angle is smaller than the cylinder deactivation control angle.
In the apparatus according to the embodiment of the present invention, when the operation mode of the cylinder deactivation mechanism of the engine is the mode allowing the state to be changed, the generating unit 406 may be configured to:
the third acquisition subunit is used for acquiring the operating parameters of the engine and determining whether the cylinder deactivation mechanism has a cylinder deactivation state change requirement or not based on the operating parameters;
the first generation subunit is used for generating a control instruction for instructing the cylinder deactivation mechanism to change the current cylinder deactivation state if the cylinder deactivation mechanism needs to change the cylinder deactivation state;
and the second generation subunit is used for generating a control instruction for indicating the cylinder deactivation mechanism to maintain the current cylinder deactivation state if the cylinder deactivation mechanism has no requirement for changing the cylinder deactivation state.
In the apparatus according to the embodiment of the present invention, when the operation mode of the cylinder deactivation mechanism of the engine is the mode allowing the state to be changed, the generating unit 406 may be configured to:
and the third generation subunit is used for generating a control instruction for instructing the cylinder deactivation mechanism to maintain the current cylinder deactivation state.
The embodiment of the invention also provides a storage medium, which comprises stored instructions, wherein when the instructions are operated, the equipment where the storage medium is located is controlled to execute the cylinder deactivation control method of the engine.
An electronic device is provided in an embodiment of the present invention, and the structural diagram of the electronic device is shown in fig. 5, which specifically includes a memory 601 and one or more instructions 602, where the one or more instructions 602 are stored in the memory 601 and configured to be executed by one or more processors 603 to perform the following operations on the one or more instructions 602:
acquiring a delay time set of an engine, wherein the delay time set comprises at least one delay time;
calculating a total delay time of the engine based on the delay times in the set of delay times;
converting the total delay time into a delay angle of the engine;
determining a cylinder deactivation required angle of the engine, and obtaining a cylinder deactivation control angle of the engine based on the cylinder deactivation required angle and the delay angle;
acquiring a current cylinder deactivation angle of the engine, and determining an operation mode of a cylinder deactivation mechanism of the engine based on the cylinder deactivation control angle and the current cylinder deactivation angle;
and generating a control command corresponding to the operation mode, and controlling the cylinder deactivation mechanism to execute the cylinder deactivation operation corresponding to the control command.
The specific implementation procedures and derivatives thereof of the above embodiments are within the scope of the present invention.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the 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.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A cylinder deactivation control method of an engine, characterized by comprising:
acquiring a delay time set of an engine, wherein the delay time set comprises at least one delay time;
calculating a total delay time of the engine based on the delay times in the set of delay times;
converting the total delay time into a delay angle of the engine;
determining a cylinder deactivation required angle of the engine, and obtaining a cylinder deactivation control angle of the engine based on the cylinder deactivation required angle and the delay angle;
acquiring a current cylinder deactivation angle of the engine, and determining an operation mode of a cylinder deactivation mechanism of the engine based on the cylinder deactivation control angle and the current cylinder deactivation angle;
and generating a control command corresponding to the operation mode, and controlling the cylinder deactivation mechanism to execute the cylinder deactivation operation corresponding to the control command.
2. The method of claim 1, wherein said obtaining a set of delay times for an engine comprises:
acquiring pin delay time and instruction generation delay time of the engine based on hardware parameters of the engine and system parameters of a control system;
acquiring the current environment temperature, the engine oil pressure and the engine oil temperature of the engine, and determining the relay delay time, the hydraulic delay time and the mechanical delay time of the engine based on the environment temperature, the engine oil pressure and the engine oil temperature;
grouping the pin delay time, the command generation delay time, the relay delay time, the hydraulic delay time, and the mechanical delay time into a set of delay times for the engine.
3. The method of claim 2, wherein said determining a relay delay time, a hydraulic delay time, and a mechanical delay time of the engine based on the ambient temperature, the oil pressure, and the oil temperature comprises:
traversing each preset environment temperature in a preset relay delay table according to the environment temperature, determining the preset environment temperature which is the same as the environment temperature as a target environment temperature, and taking the delay time corresponding to the target environment temperature as the relay delay time of the engine;
taking the engine oil pressure and the engine oil temperature as engine oil parameter combinations, traversing the engine oil parameter combinations through each preset parameter combination in a preset hydraulic delay table, taking the preset parameter combinations corresponding to the engine oil parameter combinations as target combinations, and taking delay time corresponding to the target combinations as hydraulic delay time of the engine;
and traversing each preset engine oil temperature in a preset mechanical delay time table, determining the preset engine oil temperature corresponding to the engine oil temperature as a target engine oil temperature, and taking the delay time corresponding to the target engine oil temperature as the mechanical delay time of the engine.
4. The method of claim 1, wherein said determining an operating mode of a cylinder deactivation mechanism of the engine based on the cylinder deactivation control angle and the current cylinder deactivation angle comprises:
judging whether the current cylinder deactivation angle is larger than or equal to the cylinder deactivation control angle;
if the current cylinder deactivation angle is larger than or equal to the cylinder deactivation control angle, determining that the operation mode of a cylinder deactivation mechanism of the engine is a state mode allowing to be changed;
and if the current cylinder deactivation angle is smaller than the cylinder deactivation control angle, determining that the operation mode of a cylinder deactivation mechanism of the engine is a holding state mode.
5. The method according to claim 4, wherein when the operation mode of the cylinder deactivation mechanism of the engine is a state change permission mode, the generating of the control command corresponding to the operation mode includes:
acquiring operating parameters of the engine, and determining whether a cylinder deactivation state change requirement exists in the cylinder deactivation mechanism based on the operating parameters;
if the cylinder deactivation mechanism has the requirement for changing the cylinder deactivation state, generating a control instruction for indicating the cylinder deactivation mechanism to change the current cylinder deactivation state;
and if the cylinder deactivation mechanism does not have the cylinder deactivation state change requirement, generating a control instruction for indicating the cylinder deactivation mechanism to maintain the current cylinder deactivation state.
6. The method of claim 4, wherein when the operating mode of the cylinder deactivation mechanism is a hold state mode, the generating a control command corresponding to the operating mode comprises:
and generating a control command for indicating that the cylinder deactivation mechanism maintains the current cylinder deactivation state.
7. A cylinder deactivation control device of an engine, characterized by comprising:
the device comprises a first acquisition unit, a second acquisition unit and a control unit, wherein the first acquisition unit is used for acquiring a delay time set of an engine, and the delay time set comprises at least one delay time;
a calculation unit configured to calculate a total delay time of the engine based on each of the delay times in the set of delay times;
a conversion unit for converting the total delay time into a delay angle of the engine;
the determining unit is used for determining a cylinder deactivation required angle of the engine and obtaining a cylinder deactivation control angle of the engine based on the cylinder deactivation required angle and the delay angle;
a second acquisition unit configured to acquire a current cylinder deactivation angle of the engine and determine an operation mode of a cylinder deactivation mechanism of the engine based on the cylinder deactivation control angle and the current cylinder deactivation angle;
and the generating unit is used for generating a control instruction corresponding to the operation mode and controlling the cylinder deactivation mechanism to execute the cylinder deactivation operation corresponding to the control instruction.
8. The apparatus of claim 7, wherein the first obtaining unit comprises:
the first acquisition subunit is used for acquiring pin delay time and instruction generation delay time of the engine based on hardware parameters of the engine and system parameters of a control system;
the second acquisition subunit is used for acquiring the current ambient temperature, the oil pressure and the oil temperature of the engine and determining the relay delay time, the hydraulic delay time and the mechanical delay time of the engine based on the ambient temperature, the oil pressure and the oil temperature;
a composing subunit operable to compose the pin delay time, the command generation delay time, the relay delay time, the hydraulic delay time, and the mechanical delay time into a delay time set of the engine.
9. A storage medium comprising stored instructions, wherein the instructions, when executed, control a device in which the storage medium is located to perform a cylinder deactivation control method of an engine according to any one of claims 1 to 6.
10. An electronic device comprising a memory, and one or more instructions, wherein the one or more instructions are stored in the memory and configured to be executed by one or more processors to perform a cylinder deactivation control method for an engine according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110366043.1A CN113074049B (en) | 2021-04-06 | 2021-04-06 | Engine cylinder deactivation control method and device, storage medium and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110366043.1A CN113074049B (en) | 2021-04-06 | 2021-04-06 | Engine cylinder deactivation control method and device, storage medium and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113074049A true CN113074049A (en) | 2021-07-06 |
| CN113074049B CN113074049B (en) | 2023-03-31 |
Family
ID=76614965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110366043.1A Active CN113074049B (en) | 2021-04-06 | 2021-04-06 | Engine cylinder deactivation control method and device, storage medium and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113074049B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993013311A1 (en) * | 1991-12-26 | 1993-07-08 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Automobile engine |
| JPH10103097A (en) * | 1996-09-26 | 1998-04-21 | Honda Motor Co Ltd | Cylinder-halted engine controller |
| JP2000170561A (en) * | 1998-12-09 | 2000-06-20 | Honda Motor Co Ltd | Control device for cylinder-halted engine |
| JP2001090564A (en) * | 1999-09-22 | 2001-04-03 | Honda Motor Co Ltd | Control device for internal combustion engine |
| JP2002047962A (en) * | 2000-08-03 | 2002-02-15 | Toyota Motor Corp | Engine automatic stop and start device |
| JP2004270491A (en) * | 2003-03-06 | 2004-09-30 | Kobelco Contstruction Machinery Ltd | Engine control device for construction machine |
| JP2010229911A (en) * | 2009-03-27 | 2010-10-14 | Honda Motor Co Ltd | Control device for variable valve train |
| US20190072046A1 (en) * | 2017-09-07 | 2019-03-07 | Honda Motor Co., Ltd. | Control method of internal combustion engine |
-
2021
- 2021-04-06 CN CN202110366043.1A patent/CN113074049B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993013311A1 (en) * | 1991-12-26 | 1993-07-08 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Automobile engine |
| JPH10103097A (en) * | 1996-09-26 | 1998-04-21 | Honda Motor Co Ltd | Cylinder-halted engine controller |
| JP2000170561A (en) * | 1998-12-09 | 2000-06-20 | Honda Motor Co Ltd | Control device for cylinder-halted engine |
| JP2001090564A (en) * | 1999-09-22 | 2001-04-03 | Honda Motor Co Ltd | Control device for internal combustion engine |
| JP2002047962A (en) * | 2000-08-03 | 2002-02-15 | Toyota Motor Corp | Engine automatic stop and start device |
| JP2004270491A (en) * | 2003-03-06 | 2004-09-30 | Kobelco Contstruction Machinery Ltd | Engine control device for construction machine |
| JP2010229911A (en) * | 2009-03-27 | 2010-10-14 | Honda Motor Co Ltd | Control device for variable valve train |
| US20190072046A1 (en) * | 2017-09-07 | 2019-03-07 | Honda Motor Co., Ltd. | Control method of internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113074049B (en) | 2023-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10885456B2 (en) | Processing sensor logs | |
| US9429092B2 (en) | Fault detection and response techniques | |
| US7620461B2 (en) | Systems and methods for using a combustion dynamics tuning algorithm with a multi-can combustor | |
| EP2112494A1 (en) | Machine body diagnosing method, and machine body diagnosing system | |
| JP4786129B2 (en) | Method for determining TDC of internal combustion engine | |
| US10351122B2 (en) | Vehicle control apparatus and vehicle control method | |
| JP2007206007A (en) | Method for monitoring status of component and apparatus thereof | |
| EP2616666B1 (en) | Starting of an internal combustion engine | |
| CN113074049B (en) | Engine cylinder deactivation control method and device, storage medium and electronic equipment | |
| CN101360901B (en) | Fuel injection amount learning and controlling method | |
| EP1731740B1 (en) | System and method for fuel injection control of a Diesel engine of an automotive vehicle | |
| EP3486470B1 (en) | Engine control method and control device | |
| CN101122261A (en) | Electronic control method for choker and electronic control choker device | |
| KR102539547B1 (en) | Injector diagnosis device and injector diagnosis method | |
| KR101918337B1 (en) | Method and arrangement for controlling knock | |
| KR20220041912A (en) | The test bench, and how to perform test runs on the test bench | |
| FI125798B (en) | Piston engine speed controller | |
| CN113818514A (en) | Judgment method, controller and device for flameout of excavator and excavator | |
| Ritscher | Dual-fuel engine with cylinder pressure based control | |
| RU178150U1 (en) | DEVICE FOR CONTROL OF AUTOMATIC ROTATION FREQUENCY SYSTEMS | |
| KR102576836B1 (en) | Method and device for detecting power change operation of internal combustion engine | |
| CN112709647B (en) | Method and system for wear estimation | |
| US11028772B1 (en) | Method and system for estimating damage in an internal combustion engine | |
| US11378032B1 (en) | Method and system for moving horizon estimation for machine control | |
| KR101882836B1 (en) | Method and system for optimizing the combustion process of an internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |