CN115977822A - Oil injection parameter control method and device, diesel vehicle and storage medium - Google Patents
Oil injection parameter control method and device, diesel vehicle and storage medium Download PDFInfo
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Abstract
The invention discloses an oil injection parameter control method and device, a diesel vehicle and a storage medium. The oil injection parameter control method comprises the following steps: after the enable state signal is released, acquiring a stable rotating speed signal of the engine in the current working cycle; acquiring a basic inertia rotating speed signal, and correcting the basic inertia rotating speed signal through a gear of a gearbox and the rotating speed of an engine; and obtaining a real crankshaft rotating speed signal based on the stable rotating speed signal and the corrected basic inertia rotating speed signal, and adjusting the oil injection control parameter of the engine according to the real crankshaft rotating speed signal. The invention realizes real-time evaluation of the relative variation trend (non-absolute value) of the power output of the engine when the cylinder is ignited, thereby optimizing the fuel injection control parameters of the engine in real time.
Description
Technical Field
The invention relates to the technical field of oil injection control of diesel vehicles, in particular to an oil injection parameter control method and device, a diesel vehicle and a storage medium.
Background
The high pressure common rail diesel engine refers to an oil supply machine that completely separates the generation of injection pressure and the injection process from each other in a closed loop system consisting of a high pressure oil pump, a pressure sensor, and an Electronic Control Unit (ECU).
After the high-pressure common rail diesel engine leaves a factory, the injection parameters (such as the fuel injection advance angle, the common rail pressure and the like) of the fuel are controlled according to the operation conditions (such as the rotating speed and the torque) by using the calibrated inherent data. However, since the engine has certain manufacturing tolerance and environmental factors have certain influence on the specific operating state of the engine, the output power and fuel economy of the diesel engine deviate from the standard state in the development process, which results in the deterioration of the performance of the diesel engine.
Disclosure of Invention
The invention provides an oil injection parameter control method, an oil injection parameter control device, a diesel vehicle and a storage medium, which aim to solve the problem that the existing oil injection control parameters are fixed parameters marked under a production design environment and are difficult to exert the optimal characteristics under the conditions that an engine has manufacturing deviation and is influenced by working conditions.
According to an aspect of the present invention, there is provided an injection parameter control method including:
after the enable state signal is released, acquiring a stable rotating speed signal of the engine in the current working cycle;
acquiring a basic inertia rotating speed signal, and correcting the basic inertia rotating speed signal through a gear of a gearbox and the rotating speed of an engine;
and obtaining a real crankshaft rotating speed signal based on the stable rotating speed signal and the corrected basic inertia rotating speed signal, and adjusting the oil injection control parameter of the engine according to the real crankshaft rotating speed signal.
Optionally, the calculating the enable state signal release includes:
and when the signal variances of the engine rotating speed corresponding to the multiple continuous time points are smaller than the calibrated rotating speed threshold value and the signal variances of the engine torque corresponding to the multiple continuous time points are smaller than the calibrated torque threshold value, releasing the calculation enabling state signal.
Optionally, the obtaining a steady rotation speed signal of the engine in the current working cycle includes:
the method comprises the steps of obtaining an original rotating speed signal and a trend rotating speed signal of an engine in the current working cycle, and determining a stable rotating speed signal of the engine in the current working cycle according to the original rotating speed signal and the trend rotating speed signal.
Optionally, the adjusting an oil injection control parameter of the engine according to the true crankshaft speed signal includes:
and adjusting the oil injection control parameter of the engine by an optimization control method according to the original amplitude of the real crankshaft rotation speed signal to obtain the oil injection control parameter correction value corresponding to the target amplitude.
Optionally, the fuel injection parameter control method further includes:
and storing the corrected value of the fuel injection control parameter corresponding to the target amplitude into a calibration data map taking the engine speed and the engine torque as input quantities.
Optionally, the fuel injection parameter control method further includes:
and calculating to obtain the real-time output power of the engine according to the real crankshaft rotating speed signal.
Optionally, the fuel injection control parameters include an injection advance angle and a fuel common rail pressure.
According to another aspect of the present invention, there is provided an oil injection parameter control device including:
the steady rotating speed signal acquisition module is used for acquiring a steady rotating speed signal of the engine in the current working cycle after the calculation enabling state signal is released;
the inertia rotating speed signal correction module is used for acquiring a basic inertia rotating speed signal and correcting the basic inertia rotating speed signal through a gear of a gearbox and the rotating speed of an engine;
and the oil injection control parameter adjusting module is used for executing the basic inertia rotating speed signal based on the stable rotating speed signal and the corrected basic inertia rotating speed signal to obtain a real crankshaft rotating speed signal, and adjusting the oil injection control parameter of the engine according to the real crankshaft rotating speed signal.
According to another aspect of the present invention, there is provided a diesel vehicle including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores a computer program executable by the at least one processor, the computer program being executable by the at least one processor to enable the at least one processor to perform a fuel injection parameter control method according to any embodiment of the invention.
According to another aspect of the present invention, a computer-readable storage medium is provided, which stores computer instructions for causing a processor to implement a fuel injection parameter control method according to any one of the embodiments of the present invention when executed.
According to the technical scheme of the embodiment of the invention, after the enable state signal is released, the stable rotating speed signal of the engine in the current working cycle is obtained; acquiring a basic inertia rotating speed signal, and correcting the basic inertia rotating speed signal through a gear of a gearbox and the rotating speed of an engine; and obtaining a real crankshaft rotating speed signal based on the stable rotating speed signal and the corrected basic inertia rotating speed signal, and adjusting the oil injection control parameter of the engine according to the real crankshaft rotating speed signal. The invention solves the problem that the existing oil injection control parameters are fixed parameters which are determined under the production design environment, and the optimal characteristics are difficult to exert under the conditions that the engine has manufacturing deviation and is influenced by working conditions, so that the relative change trend (non-absolute value) of the power output of the engine is evaluated in real time when the cylinder fires, and the oil injection control parameters of the engine can be optimized in real time.
It should be understood that the statements in this section are not intended to identify key or critical features of the embodiments of the present invention, nor are they intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.
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In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a simplified diagram of an engine and load rotor power model;
FIG. 2 is a schematic illustration of a change in engine speed during a work cycle;
FIG. 3 is a flow chart of a fuel injection parameter control method according to an embodiment of the present invention;
FIG. 4 is a flow chart of a fuel injection parameter control method according to a second embodiment of the present invention;
FIG. 5 is a diagram of a control logic architecture of a fuel injection parameter control method according to a second embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an injection parameter control apparatus according to a third embodiment of the present invention;
fig. 7 is a schematic configuration diagram of a diesel vehicle implementing the injection parameter control method of the embodiment of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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.
It should be noted that the terms "original", "smooth", and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1, the dynamic model of the rotor and the load of the engine can be simplified as a series connection of four rotors with larger inertia, namely a shock absorber, an engine rotor, a flywheel and a load, wherein rotational friction damping is provided between the engine and the shock absorber, between the engine rotor and the engine body and between the load and the ground. In the figure, J is the moment of inertia of each rotor, k is the rotational stiffness coefficient between each rotor, b is the rotational friction damping coefficient of each rotational damping, and θ is the rotational angle of each rotor.
Taking the engine as an in-line six-cylinder diesel engine as an example, as shown in fig. 2, the engine sequentially fires six cylinders in one operating cycle, so the crankshaft speed is accelerated when each cylinder fires and slowly decelerated after firing, as shown by ω in fig. 2 fire As shown. Meanwhile, since four mating components such as a piston and a connecting rod are connected to a crankshaft of the engine, the rotational speed of the engine fluctuates in one cycle due to the inertia force of the components. If the engine is cut off and is dragged backwards, the rotation speed of the engine in one working cycle changes, such as omega inertia 。
After the structural parameters of the engine are determined, ω inertia The shape of the curve of (a) remains substantially constant and the amplitude is proportional to the square of the rotation speed. However, when the engine's gearbox is in a higher gear, i.e. the engine is engagedAfter the transmission ratio of the load is reduced, the rotational inertia of the system
This is increased, where λ is the transmission ratio between the engine and the load, resulting in ω inertia Reduction in amplitude, hence the actual ω inertia The transmission gear of the whole vehicle needs to be corrected.
Based on the problems, the application provides a fuel injection parameter control method and device, a diesel vehicle and a storage medium.
Example one
Fig. 3 is a flowchart of an embodiment of the present invention, which is applicable to self-learning control of injection parameters, and the method can be implemented by an injection parameter control device, which can be implemented in hardware and/or software, and the injection parameter control device can be configured in a diesel vehicle with a high-pressure common rail diesel engine. As shown in fig. 3, the fuel injection parameter control method includes:
and S110, after the enable state signal is released, acquiring a stable rotating speed signal of the engine in the current working cycle.
The calculation enabling state signal is used for indicating that the engine enters a relatively stable working state, namely when the ECU detects that the engine rotating speed and the engine torque are in a relatively stable state, the calculation enabling state signal is released, and the subsequent fuel injection parameter control logic is carried out after the calculation enabling state signal is released.
The ECU (electronic Control Unit) is used for receiving signals of the sensor and the actuator and sending an execution command to the actuator to Control the actuator through an operation result of the Control program.
The output torque of the engine is the torque output by the engine measured from the coupling end and is the net torque of the engine; the internal torque of the engine is the torque consumed by the engine to overcome internal friction, inertia and other resistance; the sum of the net torque and the internal torque of the engine is the total torque output by the gas doing work in the engine cylinder, i.e., the engine torque.
Specifically, when the signal variance of the engine speed at the multiple continuous time points is smaller than the calibrated speed threshold and the signal variance of the engine torque at the multiple continuous time points is smaller than the calibrated torque threshold, the calculation enabling state signal is released.
The calibrated speed threshold and the calibrated torque threshold may be selected by those skilled in the art according to actual conditions, and the embodiment does not limit the same.
The working cycle of the engine refers to that the four-stroke engine has four strokes of air suction, compression, work application and air exhaust, the angular position of Qu Zhouzhuai in each stroke is 180 degrees, each four strokes is a complete work application cycle, and the rotating angle of the engine is 720 degrees, namely 4 pi.
It is understood that the present operating cycle in this embodiment refers to a complete engine operating cycle. Specifically, obtaining a steady speed signal of the engine during a current operating cycle includes: the method comprises the steps of obtaining an original rotating speed signal and a trend rotating speed signal of an engine in the current working cycle, and determining a stable rotating speed signal of the engine in the current working cycle according to the original rotating speed signal and the trend rotating speed signal.
After the enable state signal is released, firstly, a rotating speed signal of the engine in one working cycle, namely an original rotating speed signal, is extracted, and a change trend, namely a trend rotating speed signal, is considered and removed, so that a stable rotating speed signal of the engine in the current working cycle is obtained.
The original rotating speed signal is known as the directly obtained rotating speed signal of the engine in a working cycle, the trend rotating speed signal is the rotating speed signal obtained by removing the variation trend of the original rotating speed signal, and the stable rotating speed signal is the finally obtained rotating speed signal of the engine in the current working cycle.
And S120, acquiring a basic inertia rotating speed signal, and correcting the basic inertia rotating speed signal through the gear of the gearbox and the rotating speed of the engine.
The basic inertia rotating speed signal comprises the comprehensive influence of inertia torque and cylinder ignition, wherein the ignition refers to ignition of an engine cylinder, the engine cylinder has the power-applying capacity, and the cylinder does not apply work or consumes work in other strokes.
Specifically, in order to remove the influence of inertia torque, a basic inertia rotating speed signal is read from the ECU, and the basic inertia rotating speed signal is corrected through curve output obtained by checking the gear position of the gearbox and the rotating speed of the engine.
It is understood that the gear of the transmission is determined by the model of the diesel vehicle of the actual high-pressure common rail diesel engine, and the present embodiment is not particularly limited thereto.
S130, obtaining a real crankshaft rotating speed signal based on the stable rotating speed signal and the corrected basic inertia rotating speed signal, and adjusting an oil injection control parameter of the engine according to the real crankshaft rotating speed signal.
The fuel injection control parameters refer to physical parameters for controlling fuel injection in the electronic control engine, such as fuel injection advance angle, fuel common rail pressure and the like.
Specifically, the corrected fundamental inertial rotational speed signal is subtracted from the steady rotational speed signal to obtain the pure crankshaft rotational speed ω fire Signal, i.e. true crankshaft speed signal. Further, by examining the true crankshaft speed signal ω fire Of the original amplitude Δ ω fire The power caused by the ignition of the cylinder can be evaluated, namely the real-time output power of the engine is obtained through calculation, so that the problem that the real-time output power of the engine is very difficult to measure in the using process of the engine is solved.
On the basis, keeping the total fuel injection quantity of each working cycle of the engine unchanged, slowly adjusting the fuel injection control parameters, and adjusting the fuel injection control parameters of the engine through an optimization control method to obtain the original amplitude delta omega fire Maximum correction value of injection control parameter, wherein the original amplitude Δ ω fire Namely the target amplitude, and the target amplitude is adaptively generated according to the actual working condition of the engine.
Optionally, the optimization control method may be implemented by, but not limited to, a conjugate gradient method, a newton method, or other existing methods, and this embodiment does not limit this.
The injection control parameters may include, but are not limited to, parameters such as an injection advance angle and a fuel common rail pressure, and control adjustment of other parameters may also be added, and the embodiment will not be described herein again.
On the basis of the embodiment, the obtained fuel injection control parameter correction values corresponding to the target amplitude values are stored in a calibration data map taking the engine speed and the engine torque as input quantities, and the fuel injection control parameter correction values corresponding to the target amplitude values are used as updated engine fuel injection control variables to optimize the working performance of the engine.
According to the technical scheme of the embodiment of the invention, after the enable state signal is released, a stable rotating speed signal of the engine in the current working cycle is obtained; acquiring a basic inertia rotating speed signal, and correcting the basic inertia rotating speed signal through a gear of a gearbox and the rotating speed of an engine; and obtaining a real crankshaft rotating speed signal based on the stable rotating speed signal and the corrected basic inertia rotating speed signal, and adjusting the oil injection control parameter of the engine according to the real crankshaft rotating speed signal. The invention solves the problem that the existing oil injection control parameters are fixed parameters which are specified under the production design environment and are difficult to exert the optimal characteristics under the conditions that the engine has manufacturing deviation and is influenced by working conditions, so that the relative change trend (non-absolute value) of the power output of the engine is evaluated in real time when the cylinder is ignited, and the oil injection control parameters of the engine can be optimized in real time.
Example two
Fig. 4 is a flowchart of an injection parameter control method according to a second embodiment of the present invention, and in this embodiment, on the basis of the second embodiment, the step of adjusting the injection control parameter of the engine according to the true crankshaft speed signal is further refined as follows: adjusting the oil injection control parameter of the engine by an optimized control method according to the original amplitude of the real crankshaft rotating speed signal to obtain an oil injection control parameter correction value corresponding to the target amplitude; and storing the corrected value of the fuel injection control parameter corresponding to the target amplitude value into a calibration data map which takes the engine speed and the engine torque as input quantities. Fig. 5 is a control logic architecture diagram of an injection parameter control method, as shown in fig. 4 and 5, including:
s210, when the signal variances corresponding to the engine rotating speed at the multiple continuous time points are smaller than a calibrated rotating speed threshold value, and the signal variances corresponding to the engine torque at the multiple continuous time points are smaller than a calibrated torque threshold value, releasing the calculation enabling state signal.
Specifically, the enable state signal is calculated when the engine speed and the engine torque are detected to be in a relatively stable state, and the engine is considered to enter a relatively stable working state for releasing. The method for evaluating whether the engine speed and the engine torque are in a steady state may adopt a variance calculation method, see fig. 5, and sigma (x) in fig. 5 i And k) is the signal variance of the engine speed signal or the engine torque signal from the current time point to the front k-1 time points, and when the variance of the engine speed and the engine torque is smaller than the respective calibration threshold, the engine is considered to enter a stable working state, and then the calculation enabling state signal is released.
It can be known that k is a positive integer greater than 2, the multiple continuous time points in step S210 are multiple continuous time points from the current time point to k-1 previous time points in fig. 5, and the specific number of time points may be selected and set by a person skilled in the art according to an actual situation, which is not limited in this embodiment.
S220, acquiring an original rotating speed signal and a trend rotating speed signal of the engine in the current working cycle, and determining a stable rotating speed signal of the engine in the current working cycle according to the original rotating speed signal and the trend rotating speed signal.
And S230, acquiring a basic inertia rotating speed signal, and correcting the basic inertia rotating speed signal through the gear of the gearbox and the rotating speed of the engine.
With continued reference to FIG. 5, the fundamental inertial speed signal is modified by looking up the curve output from the transmission gear and engine speed.
And S240, obtaining a real crankshaft rotating speed signal based on the stable rotating speed signal and the corrected basic inertia rotating speed signal.
Because the crankshaft rotation speed omega can be accurately calculated during the actual operation process of the engine fire The magnitude of the fuel injection control parameter can be used as a basis for adjusting the fuel injection control parameter. In this embodiment, a true crankshaft rotational speed signal ω is obtained based on the stationary rotational speed signal and the modified basic inertia rotational speed signal fire And then, calculating the real-time output power of the engine according to the real crankshaft speed signal, thereby solving the problem that the real-time output power of the engine is very difficult to measure in the using process.
And S250, adjusting the oil injection control parameter of the engine by an optimized control method according to the original amplitude of the real crankshaft rotation speed signal to obtain an oil injection control parameter correction value corresponding to the target amplitude.
The original amplitude is the amplitude which can be obtained by corresponding to the crankshaft rotating speed signal, and the target amplitude is the maximum amplitude which is obtained by slowly adjusting the oil injection control parameter on the premise of keeping the total fuel injection amount of each working cycle of the engine unchanged for correcting the oil injection control parameter.
On the basis, with reference to fig. 5, the fuel injection advance angle and the fuel common rail pressure of the engine are adjusted according to the original amplitude of the real crankshaft rotation speed signal, and the fuel injection advance angle and the fuel common rail pressure are adjusted to be correction amounts corresponding to the target amplitude, that is, the real crankshaft rotation speed signal is made to be the fuel injection advance angle correction amount and the fuel common rail pressure correction amount corresponding to the maximum amplitude.
And S260, storing the corrected value of the fuel injection control parameter corresponding to the target amplitude into a calibration data map taking the engine speed and the engine torque as input quantities.
On the basis, with continued reference to fig. 5, the obtained fuel injection advance angle correction amount and fuel common rail pressure correction amount are stored in a calibration data map with the engine speed and the engine torque as input amounts, and the fuel injection advance angle correction amount and the fuel common rail pressure correction amount are used as updated engine fuel injection control variables to optimize the working performance of the engine.
The technical scheme provided by the embodiment of the invention can estimate the fuel economy and the power of the engine in the working process in real time, correct the control parameter of fuel injection according to the estimated fuel economy and power, and realize the real-time evaluation of the relative change trend (non-absolute value) of the power output of the engine when the cylinder fires through the calculation of the rotating speed of the crankshaft, thereby optimizing the fuel injection control parameter of the engine in real time. In addition, the corrected oil injection control parameters are written into a calibration data map so as to ensure the excellent performance of the engine in the actual use process.
EXAMPLE III
Fig. 6 is a schematic structural diagram of an oil injection parameter control device according to a third embodiment of the present invention. As shown in fig. 6, the injection parameter control device includes:
the steady rotating speed signal obtaining module 610 is used for obtaining a steady rotating speed signal of the engine in the current working cycle after the enabling state signal is released;
the inertia rotating speed signal correcting module 620 is used for acquiring a basic inertia rotating speed signal and correcting the basic inertia rotating speed signal through a gear of a gearbox and the rotating speed of an engine;
and an oil injection control parameter adjusting module 630, configured to execute the step of obtaining a true crankshaft rotation speed signal based on the stable rotation speed signal and the corrected basic inertia rotation speed signal, and adjust an oil injection control parameter of the engine according to the true crankshaft rotation speed signal.
Optionally, the calculation enable state signal releasing is specifically configured to:
and releasing the calculation enabling state signal when the signal variances corresponding to the engine rotating speed at the multiple continuous time points are smaller than the calibrated rotating speed threshold value and the signal variances corresponding to the engine torque at the multiple continuous time points are smaller than the calibrated torque threshold value.
Optionally, the obtaining a steady rotation speed signal of the engine in the current working cycle is specifically configured to:
the method comprises the steps of obtaining an original rotating speed signal and a trend rotating speed signal of an engine in the current working cycle, and determining a stable rotating speed signal of the engine in the current working cycle according to the original rotating speed signal and the trend rotating speed signal.
Optionally, the fuel injection control parameter of the engine is adjusted according to the real crankshaft speed signal, and is specifically used for:
and adjusting the oil injection control parameter of the engine by an optimization control method according to the original amplitude of the real crankshaft rotating speed signal to obtain the oil injection control parameter correction value corresponding to the target amplitude.
Optionally, the fuel injection parameter control device further includes:
and the data storage module is used for storing the fuel injection control parameter correction value corresponding to the target amplitude into a calibration data map taking the engine speed and the engine torque as input quantities.
Optionally, the fuel injection parameter control device further includes:
and the power calculation module is used for calculating the real-time output power of the engine according to the real crankshaft rotating speed signal.
Optionally, the fuel injection control parameters include an injection advance angle and a fuel common rail pressure.
The oil injection parameter control device provided by the embodiment of the invention can execute the oil injection parameter control method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of executing the oil injection parameter control method.
Example four
FIG. 7 illustrates a schematic structural diagram of a diesel vehicle 710 that can be used to implement an embodiment of the present invention. Diesel vehicles are intended to include computers representing various forms of digital information such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Diesel vehicles may also include computing devices that represent various forms, such as personal digital assistants, cellular telephones, smart phones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 7, the diesel vehicle 710 includes at least one processor 711, and a memory communicatively connected to the at least one processor 711, such as a Read Only Memory (ROM) 712, a Random Access Memory (RAM) 713, and the like, wherein the memory stores computer programs executable by the at least one processor, and the processor 711 may perform various suitable actions and processes according to the computer programs stored in the Read Only Memory (ROM) 712 or the computer programs loaded from the storage unit 718 into the Random Access Memory (RAM) 713. In the RAM 713, various programs and data required for the operation of the diesel vehicle 710 can also be stored. The processor 711, ROM 712, and RAM 713 are connected to each other by a bus 714. An input/output (I/O) interface 715 is also connected to bus 714.
Various components in the diesel vehicle 710 are connected to the I/O interface 715, including: an input unit 716 such as a keyboard, a mouse, or the like; an output unit 717 such as various types of displays, speakers, and the like; a storage unit 718 such as a magnetic disk, optical disk, or the like; and a communication unit 719 such as a network card, modem, wireless communication transceiver, or the like. The communication unit 719 allows the diesel vehicle 710 to exchange information/data with other devices through a computer network such as the internet and/or various telecommunication networks.
The processor 711 may be a variety of general purpose and/or special purpose processing components having processing and computing capabilities. Some examples of the processor 711 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various dedicated Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, or the like. The processor 711 performs the various methods and processes described above, such as the fuel injection parameter control method.
In some embodiments, the fuel injection parameter control method may be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 718. In some embodiments, part or all of the computer program may be loaded and/or installed on the diesel vehicle 710 via the ROM 712 and/or the communication unit 719. When the computer program is loaded into RAM 713 and executed by processor 711, one or more of the steps of the injection parameter control method described above may be performed. Alternatively, in other embodiments, processor 711 may be configured to perform the fuel injection parameter control method in any other suitable manner (e.g., via firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), system on a chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be performed. A computer program can execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described herein may be implemented on a diesel vehicle having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user may provide input to the diesel vehicle. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical host and VPS service are overcome.
It should be understood that various forms of the flows shown above, reordering, adding or deleting steps, may be used. For example, the steps described in the present invention may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired results of the technical solution of the present invention can be achieved.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of controlling a fuel injection parameter, comprising:
after the enable state signal is released, acquiring a stable rotating speed signal of the engine in the current working cycle;
acquiring a basic inertia rotating speed signal, and correcting the basic inertia rotating speed signal through a gear of a gearbox and the rotating speed of an engine;
and obtaining a real crankshaft rotating speed signal based on the stable rotating speed signal and the corrected basic inertia rotating speed signal, and adjusting the oil injection control parameter of the engine according to the real crankshaft rotating speed signal.
2. A fuel injection parameter control method as claimed in claim 1, wherein said calculating an enable status signal release comprises:
and releasing the calculation enabling state signal when the signal variances corresponding to the engine rotating speed at the multiple continuous time points are smaller than the calibrated rotating speed threshold value and the signal variances corresponding to the engine torque at the multiple continuous time points are smaller than the calibrated torque threshold value.
3. The fuel injection parameter control method of claim 1, wherein said deriving a steady speed signal of the engine over the current operating cycle comprises:
the method comprises the steps of obtaining an original rotating speed signal and a trend rotating speed signal of the engine in the current working cycle, and determining a stable rotating speed signal of the engine in the current working cycle according to the original rotating speed signal and the trend rotating speed signal.
4. The fuel injection parameter control method of claim 1, wherein said adjusting a fuel injection control parameter of said engine based on said true crankshaft speed signal comprises:
and adjusting the oil injection control parameter of the engine by an optimization control method according to the original amplitude of the real crankshaft rotating speed signal to obtain the oil injection control parameter correction value corresponding to the target amplitude.
5. The fuel injection parameter control method of claim 4, further comprising:
and storing the corrected value of the fuel injection control parameter corresponding to the target amplitude value into a calibration data map which takes the engine speed and the engine torque as input quantities.
6. The fuel injection parameter control method of claim 1, further comprising:
and calculating to obtain the real-time output power of the engine according to the real crankshaft rotating speed signal.
7. The fuel injection parameter control method of claim 1, wherein the fuel injection control parameters include an injection advance angle and a fuel common rail pressure.
8. A fuel injection parameter control apparatus, comprising:
the steady rotating speed signal acquisition module is used for acquiring a steady rotating speed signal of the engine in the current working cycle after the enabling state signal is released;
the inertia rotating speed signal correction module is used for acquiring a basic inertia rotating speed signal and correcting the basic inertia rotating speed signal through a gear of a gearbox and the rotating speed of an engine;
and the oil injection control parameter adjusting module is used for executing the basic inertia rotating speed signal based on the stable rotating speed signal and the corrected basic inertia rotating speed signal to obtain a real crankshaft rotating speed signal, and adjusting the oil injection control parameter of the engine according to the real crankshaft rotating speed signal.
9. A diesel vehicle, characterized in that the diesel vehicle comprises:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores a computer program executable by the at least one processor, the computer program being executable by the at least one processor to enable the at least one processor to perform a fuel injection parameter control method as claimed in any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that it stores computer instructions for causing a processor to carry out the fuel injection parameter control method according to any one of claims 1 to 7 when executed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310090004.2A CN115977822A (en) | 2023-02-02 | 2023-02-02 | Oil injection parameter control method and device, diesel vehicle and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310090004.2A CN115977822A (en) | 2023-02-02 | 2023-02-02 | Oil injection parameter control method and device, diesel vehicle and storage medium |
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| Publication Number | Publication Date |
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| CN115977822A true CN115977822A (en) | 2023-04-18 |
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| CN202310090004.2A Pending CN115977822A (en) | 2023-02-02 | 2023-02-02 | Oil injection parameter control method and device, diesel vehicle and storage medium |
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| Country | Link |
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| CN (1) | CN115977822A (en) |
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- 2023-02-02 CN CN202310090004.2A patent/CN115977822A/en active Pending
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