CN113586265A - Engine speed regulation rate adjusting method and device and storage medium - Google Patents
Engine speed regulation rate adjusting method and device and storage medium Download PDFInfo
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- CN113586265A CN113586265A CN202110851384.8A CN202110851384A CN113586265A CN 113586265 A CN113586265 A CN 113586265A CN 202110851384 A CN202110851384 A CN 202110851384A CN 113586265 A CN113586265 A CN 113586265A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
- F02D31/007—Electric control of rotation speed controlling fuel supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The application provides an engine speed regulation rate adjustment self-adaption method, a system and a storage medium, which are used for reading a current set rotating speed and a set maximum speed regulation rate under a current gear; according to the set rotating speed and the actual internal torque value, a start-up torque value corresponding to the set rotating speed under the current gear is obtained through the start-up torque characteristic; determining a maximum internal torque value corresponding to the set rotating speed under the current gear according to the set rotating speed and the external characteristics of the engine; obtaining a speed dropping coefficient corresponding to the set rotating speed at the current gear through a maximum speed dropping equation according to the set rotating speed, the set maximum speed regulating rate at the current gear, and a starting dropping torque value and a maximum internal torque value corresponding to the set rotating speed at the current gear; and updating the speed dropping coefficient parameter of the engine according to the speed dropping coefficient corresponding to the set rotating speed under the current gear. The method and the device for updating the engine speed dropping coefficient adaptively update the engine speed dropping coefficient according to the set rotating speed and the set speed, and meet the requirement that a user freely selects the speed and the rotating speed of the engine.
Description
Technical Field
The application belongs to the technical field of engine speed regulation, and particularly relates to a speed regulation rate regulation method and device for an engine and a storage medium.
Background
At present, the maximum steady-state speed regulation rate of the traditional engine is determined by a speed dropping coefficient and a torque dropping which are calibrated inside an Electronic Control Unit (ECU), wherein the steady-state speed regulation rate refers to the percentage of the ratio of the difference between the idle steady-state rotating speed and the full-load steady-state rotating speed to the calibrated rotating speed when an operating handle is at a calibrated oil supply position. The maximum steady state rate of regulation is: (set rotation speed-maximum stall value)/set rotation speed.
When a user desires to change the set rotating speed and the set speed adjusting rate, the existing control and adjustment method cannot meet the requirement of the user for freely selecting the rotating speed and the set speed adjusting rate.
Disclosure of Invention
The invention provides a self-adaptive method, a device and a storage medium for adjusting the speed of an engine, and aims to solve the problem that a user cannot freely select the speed adjustment rate and the rotating speed of the engine according to requirements in the prior art.
According to a first aspect of embodiments herein, there is provided an engine pacing rate adjustment adaptive method comprising the steps of:
reading a current set rotating speed and a set maximum speed regulation rate under a current gear;
according to the set rotating speed and the actual internal torque value, a start-up torque value corresponding to the set rotating speed under the current gear is obtained through the start-up torque characteristic;
determining a maximum internal torque value corresponding to the set rotating speed under the current gear according to the set rotating speed and the external characteristics of the engine;
obtaining a speed dropping coefficient corresponding to the set rotating speed at the current gear through a maximum speed dropping equation according to the set rotating speed, the set maximum speed regulating rate at the current gear, and a starting dropping torque value and a maximum internal torque value corresponding to the set rotating speed at the current gear;
and updating the speed dropping coefficient parameter of the engine according to the speed dropping coefficient corresponding to the set rotating speed under the current gear.
In some embodiments of the present application, the lift-off torque characteristic is a lift-off torque lookup table obtained through a bench calibration test under different rotation speeds and different hydraulic oil temperature characteristics.
In some embodiments of the present application, in the lift-off torque lookup table, the corresponding lift-off torques at different rotation speeds and with different hydraulic oil temperature characteristics are obtained by adding the torque deviation value to the actual internal torque value.
In some embodiments of the present application, determining, according to a set rotation speed and through an external characteristic of an engine, a maximum internal torque value corresponding to the set rotation speed in a current gear specifically includes:
according to the set rotating speed, obtaining the fuel injection quantity corresponding to the set rotating speed through the rotating speed-fuel injection quantity corresponding characteristic;
and obtaining an internal torque value corresponding to the set rotating speed, namely a maximum internal torque value corresponding to the set rotating speed at the current gear, according to the corresponding characteristics of the rotating speed, the fuel injection quantity and the internal torque value.
In some embodiments of the present application, the rotation speed-fuel injection amount correspondence characteristic is a rotation speed-fuel injection amount correspondence table obtained by engine characteristic calibration.
In some embodiments of the present application, the corresponding characteristics of the rotation speed, the fuel injection amount, and the internal torque value are set as a lookup table of the corresponding internal torque value under the characteristics of the rotation speed and the fuel injection amount obtained by calibrating the characteristics of the engine.
In some embodiments of the present application, the maximum stall equation is specifically:
n-α％*n＝(Mc-M0)*β；
wherein n is a set rotating speed; alpha is a set maximum rate; mcSetting a maximum internal torque value corresponding to the rotating speed under the current gear; m0Setting a torque-off value corresponding to the rotating speed under the current gear; beta is the falling speed coefficient.
In some embodiments of the present application, the method further comprises:
and storing the set rotating speed, the set maximum speed regulating rate under the current gear, the drop-off torque value and the maximum internal torque value corresponding to the set rotating speed under the current gear and the drop-off coefficient corresponding to the set rotating speed under the current gear.
According to a second aspect of the embodiments of the present application, there is provided an adaptive system for adjusting an engine speed, specifically comprising:
a reading module: the device is used for reading the current set rotating speed and the set maximum speed regulation rate under the current gear;
the trip torque value module: the system comprises a control device, a transmission device and a control device, wherein the control device is used for obtaining a set rotating speed and an actual internal torque value according to the set rotating speed and the actual internal torque value, and obtaining a start-up torque value corresponding to the set rotating speed under the current gear through start-up torque characteristics;
a maximum internal torque value module: the device is used for determining a maximum internal torque value corresponding to the set rotating speed under the current gear according to the set rotating speed and the external characteristics of the engine;
a drop speed coefficient module: the system comprises a speed setting module, a speed setting module and a control module, wherein the speed setting module is used for obtaining a speed setting coefficient corresponding to a set rotating speed under a current gear through a maximum speed setting equation according to the set rotating speed, the set maximum speed regulating rate under the current gear and a start-up torque value and a maximum internal torque value corresponding to the set rotating speed under the current gear;
the engine parameter self-adaptive updating module: and the speed dropping coefficient parameter updating module is used for updating the speed dropping coefficient parameter of the engine according to the speed dropping coefficient corresponding to the set rotating speed under the current gear.
According to a third aspect of embodiments of the present application, there is provided a computer-readable storage medium having a computer program stored thereon; a computer program is executed by a processor to implement the engine pacing rate adjustment adaptive method.
By adopting the self-adaptive method, the self-adaptive system and the self-adaptive storage medium for regulating the engine speed in the embodiment of the application, the current set rotating speed and the set maximum speed regulating rate under the current gear are read; according to the set rotating speed and the actual internal torque value, a start-up torque value corresponding to the set rotating speed under the current gear is obtained through the start-up torque characteristic; determining a maximum internal torque value corresponding to the set rotating speed under the current gear according to the set rotating speed and the external characteristics of the engine; obtaining a speed dropping coefficient corresponding to the set rotating speed at the current gear through a maximum speed dropping equation according to the set rotating speed, the set maximum speed regulating rate at the current gear, and a starting dropping torque value and a maximum internal torque value corresponding to the set rotating speed at the current gear; and updating the speed dropping coefficient parameter of the engine according to the speed dropping coefficient corresponding to the set rotating speed under the current gear. The method and the device for updating the engine speed dropping coefficient adaptively update the engine speed dropping coefficient according to the set rotating speed and the set speed, and meet the requirement that a user freely selects the speed and the rotating speed of the engine.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a flow chart illustrating steps of an adaptive method of engine pacing according to an embodiment of the present application;
FIG. 2 is a schematic flow chart diagram illustrating an engine pacing rate adjustment adaptation method according to an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating an adaptive engine rate adjustment apparatus according to an embodiment of the present application;
FIG. 4 illustrates a schematic diagram of an operator panel of an adaptive engine rate adjustment apparatus according to an embodiment of the present application;
FIG. 5 illustrates a message interaction diagram for adaptive engine pacing according to an embodiment of the present application;
FIG. 6 is a schematic diagram illustrating a controller-ECU interaction as engine pacing adaptation is applied, according to an embodiment of the application;
fig. 7 is a schematic structural diagram of an engine rate adjustment adaptive device according to an embodiment of the present application.
Detailed Description
In the process of implementing the present application, the inventor finds that the maximum steady-state speed regulation rate of the conventional engine is determined by a speed dropping coefficient and a starting dropping torque which are calibrated inside an electronic Control unit (ecu), and when a user desires to change the set rotating speed and the set speed regulation rate, the existing Control and regulation method cannot meet the requirement of the user for freely selecting the rotating speed and the set speed regulation rate.
In order to solve the problems, the application provides a self-adaptive method, a system and a storage medium for regulating the speed of an engine, which are used for reading the current set rotating speed and the set maximum speed regulation rate under the current gear; according to the set rotating speed and the actual internal torque value, a start-up torque value corresponding to the set rotating speed under the current gear is obtained through the start-up torque characteristic; determining a maximum internal torque value corresponding to the set rotating speed under the current gear according to the set rotating speed and the external characteristics of the engine; obtaining a speed dropping coefficient corresponding to the set rotating speed at the current gear through a maximum speed dropping equation according to the set rotating speed, the set maximum speed regulating rate at the current gear, and a starting dropping torque value and a maximum internal torque value corresponding to the set rotating speed at the current gear; and updating the speed dropping coefficient parameter of the engine according to the speed dropping coefficient corresponding to the set rotating speed under the current gear.
The method and the device for updating the engine speed dropping coefficient adaptively update the engine speed dropping coefficient according to the set rotating speed and the set speed, and meet the requirement that a user freely selects the speed and the rotating speed of the engine.
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example 1
A flow chart of steps of an engine pacing rate adjustment adaptation method according to an embodiment of the present application is shown in fig. 1.
As shown in fig. 1, the engine rate adjustment adaptive method of the present embodiment specifically includes the following steps:
s101: and reading the current set rotating speed and the set maximum speed regulation rate under the current gear.
S102: and obtaining a start-up torque value corresponding to the set rotating speed under the current gear through the start-up torque characteristic according to the set rotating speed and the actual internal torque value.
Specifically, the lift-off torque characteristic is a lift-off torque lookup table obtained through a bench calibration test under different rotation speeds and different hydraulic oil temperature characteristics, as shown in table 3 in fig. 2.
In the starting-up torque query table, corresponding starting-up torques under different rotating speeds and different hydraulic oil temperature characteristics are obtained by adding torque deviation values to actual internal torque values. Through a plurality of experiments, the torque deviation value is set to be 20N/M.
S103: and determining the maximum internal torque value corresponding to the set rotating speed under the current gear according to the set rotating speed and the external characteristics of the engine.
The method specifically comprises the following steps: firstly, according to a set rotating speed, obtaining an oil injection quantity corresponding to the set rotating speed through a rotating speed-oil injection quantity corresponding characteristic; and then, obtaining an internal torque value corresponding to the set rotating speed, namely a maximum internal torque value corresponding to the set rotating speed at the current gear through the corresponding characteristics of the rotating speed, the fuel injection quantity and the internal torque value.
The corresponding characteristic of the rotating speed and the fuel injection quantity is a corresponding table of the rotating speed and the fuel injection quantity obtained by calibrating the characteristics of the engine, and is shown in a table 1 in a figure 2.
The corresponding characteristics of the rotating speed, the fuel injection quantity and the internal torque value are set, and the corresponding internal torque value query table is a corresponding internal torque value query table under the characteristics of the rotating speed and the fuel injection quantity obtained through calibration of engine characteristics, and is shown in a table 2 in fig. 2.
S104: and obtaining a speed dropping coefficient corresponding to the set rotating speed at the current gear through a maximum speed dropping equation according to the set rotating speed, the set maximum speed regulating rate at the current gear, and the starting dropping torque value and the maximum internal torque value corresponding to the set rotating speed at the current gear.
The maximum stall equation is specifically:
n-α％*n＝(Mc-M0)*β；
wherein n is a set rotating speed; alpha is a set maximum rate; mcSetting a maximum internal torque value corresponding to the rotating speed under the current gear; m0Setting a torque-off value corresponding to the rotating speed under the current gear; beta is the falling speed coefficient.
Further, n, α, McAnd M0On the known premise, the stall coefficient beta can be obtained through a maximum stall equation.
S105: and updating the speed dropping coefficient parameter of the engine according to the speed dropping coefficient corresponding to the set rotating speed under the current gear.
Finally, the method also comprises the following steps: and storing the set rotating speed, the set maximum speed regulating rate under the current gear, the drop-off torque value and the maximum internal torque value corresponding to the set rotating speed under the current gear and the drop-off coefficient corresponding to the set rotating speed under the current gear.
The embodiment of the application provides an engine speed regulation rate adjustment self-adaption method, which comprises the steps of reading a current set rotating speed and a set maximum speed regulation rate under a current gear; according to the set rotating speed and the actual internal torque value, a start-up torque value corresponding to the set rotating speed under the current gear is obtained through the start-up torque characteristic; determining a maximum internal torque value corresponding to the set rotating speed under the current gear according to the set rotating speed and the external characteristics of the engine; obtaining a speed dropping coefficient corresponding to the set rotating speed at the current gear through a maximum speed dropping equation according to the set rotating speed, the set maximum speed regulating rate at the current gear, and a starting dropping torque value and a maximum internal torque value corresponding to the set rotating speed at the current gear; and updating the speed dropping coefficient parameter of the engine according to the speed dropping coefficient corresponding to the set rotating speed under the current gear.
The method and the device for updating the engine speed dropping coefficient adaptively update the engine speed dropping coefficient according to the set rotating speed and the set speed, and meet the requirement that a user freely selects the speed and the rotating speed of the engine.
Example 2
For details not disclosed in the engine speed adjustment adaptive system of this embodiment, please refer to specific implementation contents of the engine speed adjustment adaptive method in other embodiments.
FIG. 3 shows a schematic diagram of an adaptive system for engine pacing according to an embodiment of the present application.
As shown in fig. 3, the adaptive system for engine rate adjustment specifically includes:
the reading module 10: and the speed adjusting device is used for reading the current set rotating speed and the set maximum speed adjusting rate under the current gear.
The trip torque value module 20: and the method is used for obtaining the start-up and drop-off torque value corresponding to the set rotating speed under the current gear through the start-up and drop-off torque characteristic according to the set rotating speed and the actual internal torque value.
Specifically, the lift-off torque characteristic is a lift-off torque lookup table obtained through a bench calibration test under different rotation speeds and different hydraulic oil temperature characteristics, as shown in table 3 in fig. 2.
In the starting-up torque query table, corresponding starting-up torques under different rotating speeds and different hydraulic oil temperature characteristics are obtained by adding torque deviation values to actual internal torque values. Through a plurality of experiments, the torque deviation value is set to be 20N/M.
Maximum internal torque value module 30: and the method is used for determining the maximum internal torque value corresponding to the set rotating speed under the current gear according to the set rotating speed and the external characteristics of the engine.
The method specifically comprises the following steps: firstly, according to a set rotating speed, obtaining an oil injection quantity corresponding to the set rotating speed through a rotating speed-oil injection quantity corresponding characteristic; and then, obtaining an internal torque value corresponding to the set rotating speed, namely a maximum internal torque value corresponding to the set rotating speed at the current gear through the corresponding characteristics of the rotating speed, the fuel injection quantity and the internal torque value.
The corresponding characteristic of the rotating speed and the fuel injection quantity is a corresponding table of the rotating speed and the fuel injection quantity obtained by calibrating the characteristics of the engine, and is shown in a table 1 in a figure 2.
The corresponding characteristics of the rotating speed, the fuel injection quantity and the internal torque value are set, and the corresponding internal torque value query table is a corresponding internal torque value query table under the characteristics of the rotating speed and the fuel injection quantity obtained through calibration of engine characteristics, and is shown in a table 2 in fig. 2.
The falling speed coefficient module 40: and the speed dropping coefficient corresponding to the set rotating speed at the current gear is obtained through a maximum speed dropping equation according to the set rotating speed, the set maximum speed regulating rate at the current gear, and the starting dropping torque value and the maximum internal torque value corresponding to the set rotating speed at the current gear.
The maximum stall equation is specifically:
n-α％*n＝(Mc-M0)*β；
wherein n is a set rotating speed; alpha is a set maximum rate; mcSetting a maximum internal torque value corresponding to the rotating speed under the current gear; m0Setting a torque-off value corresponding to the rotating speed under the current gear; beta is the falling speed coefficient.
Further, inn、α、McAnd M0On the known premise, the stall coefficient beta can be obtained through a maximum stall equation.
The engine parameter adaptive update module 50: and the speed dropping coefficient parameter updating module is used for updating the speed dropping coefficient parameter of the engine according to the speed dropping coefficient corresponding to the set rotating speed under the current gear.
Finally, the method also comprises the following steps: and storing the set rotating speed, the set maximum speed regulating rate under the current gear, the drop-off torque value and the maximum internal torque value corresponding to the set rotating speed under the current gear and the drop-off coefficient corresponding to the set rotating speed under the current gear.
Example 3
For details not disclosed in the present embodiment of the adaptive engine speed adjustment device, please refer to specific implementation contents of the adaptive engine speed adjustment method or system in other embodiments.
FIG. 4 shows a schematic diagram of an operation panel of an adaptive engine rate adjustment device according to an embodiment of the application.
As shown in fig. 4, the engine rate adjustment adaptive device includes an operation control panel shown in fig. 4.
Specifically, the control panel is provided with a four-hole connector, communication with an engine ECU is achieved through an OBD transfer wiring harness, and when the power supply of the equipment is normal, a power supply indicator lamp on the control panel is normally on; the device communicates with ECU through standard 1939 protocol, when the communication is normal, the communication indicator lamp on the panel is always on; the self-learning indicator lamp on the panel is used for indicating the current self-learning condition, the constant brightness indicates that self-learning is performed, and the flashing light indicates that the self-learning is completed. When flashing, the "end" button is pressed at this point and the machine self-learning process is complete.
FIG. 5 shows a message interaction diagram during engine pacing rate adjustment adaptation according to an embodiment of the application. FIG. 6 is a schematic diagram illustrating controller-ECU interaction during engine pacing adaptation according to an embodiment of the application.
As shown in fig. 5, the message interaction flow is as follows:
the "read" button: pressing a reading button, sending a reading instruction to Ecu by the controller, and sending the current set rotating speed and the corresponding maximum speed regulation rate to a panel by the ECU through a message; the panel receives the data and displays the data on a display screen;
the "enter" button: pressing an input button, wherein the input of the numeric keyboard is effective at the moment, the corresponding number is input, and the display screen can display an input value; after clicking a 'confirm' button, locking the current input rotating speed and the maximum speed regulation rate; the "start" button: pressing a start button to trigger a self-learning process in the ECU, flashing an indicator light after the self-learning is finished, pressing an 'end' button at the moment, and storing a self-learning result into an EEPROM in Ecu;
the "stop" button: pressing a stop button, stopping self-learning, restoring the program to the original state, and pressing a 'start' button again when self-learning is performed again;
description of the operation:
the machine is started to keep idle running, the gear of the excavator is selected at the moment, a reading button is clicked, a control panel can display the set rotating speed and the maximum dropping rate corresponding to the current gear, if the set rotating speed and the maximum adjusting rate of the current gear are to be adjusted, an input button is clicked, the rotating speed and the maximum adjusting rate to be set are selected through the buttons, a determining button is clicked to complete input, a start button is clicked to start a self-learning process, a self-learning indicator lamp is normally on at the moment to indicate that self-learning is performed, and a current set rotating speed modification value and a current maximum adjusting rate setting value are automatically displayed on a screen after the self-learning is completed; automatically returning to the idling speed after the self-learning is finished, wherein the self-learning indicator lamp flickers to prompt that the self-learning is finished; the operation is repeated to set the rotating speed and the maximum speed regulating rate of other gears, and after all gears are finished, an 'end' button is clicked, and the engine writes related parameters into the ECU. Abnormal conditions occur in the self-learning process, such as: when the user needs to move the vehicle and the like, the user can press a stop button to temporarily stop the self-learning.
As shown in fig. 6, the controller-ECU interaction flow is as follows:
after the ECU receives the instruction of starting self-learning, an internal self-learning program is triggered, the internal torque values under the current set rotating speed, the water temperature and the oil temperature are read, and the maximum internal torque value corresponding to the current rotating speed is determined by searching the external characteristics of the engine at the current set rotating speed. And the ECU receives the maximum speed regulating instruction and calculates the currently required speed dropping coefficient according to a speed regulating equivalent formula. After receiving the 'end' instruction, the ECU writes the starting torque and the speed dropping coefficient into the EEPROM.
Fig. 7 is a schematic structural diagram of an engine rate adjustment adaptive device 400 according to an embodiment of the present application.
As shown in fig. 7, the engine rate adjustment adaptive device 400 includes:
the memory 402: for storing executable instructions; and
a processor 401 is coupled to the memory 402 to execute executable instructions to perform the motion vector prediction method.
Those skilled in the art will appreciate that the schematic diagram 7 is merely an example of the engine pacing rate adjustment adaptation apparatus 400 and does not constitute a limitation on the engine pacing rate adjustment adaptation apparatus 400, and may include more or fewer components than those shown, or combine certain components, or different components, for example, the engine pacing rate adjustment adaptation apparatus 400 may further include input-output devices, network access devices, buses, etc.
The Processor 401 (CPU) may be other general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, or the like. The general purpose processor may be a microprocessor or the processor 401 may be any conventional processor or the like, and the processor 401 is the control center of the engine rate adjustment adaptive apparatus 400, and various interfaces and lines are used to connect the various parts of the entire engine rate adjustment adaptive apparatus 400.
The memory 402 may be used to store computer readable instructions and the processor 401 may implement the various functions of the motor pacing adaptive device 400 by executing or executing computer readable instructions or modules stored in the memory 402 and invoking data stored in the memory 402. The memory 402 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the stored data area may store data created according to the engine pacing rate adjustment adaptive device 400 use, and the like. In addition, the Memory 402 may include a hard disk, a Memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Memory Card (Flash Card), at least one disk storage device, a Flash Memory device, a Read-Only Memory (ROM), a Random Access Memory (RAM), or other non-volatile/volatile storage devices.
The integrated modules of the engine pacing adaptive device 400, if implemented as software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by hardware related to computer readable instructions, which may be stored in a computer readable storage medium, and when the computer readable instructions are executed by a processor, the steps of the method embodiments may be implemented.
Example 4
The present embodiment provides a computer-readable storage medium having stored thereon a computer program; a computer program is executed by a processor to implement the engine pacing rate adjustment adaptation method in other embodiments.
The self-adaptive device for adjusting the engine speed and the storage medium provided by the embodiment of the application read the current set rotating speed and the set maximum speed under the current gear; according to the set rotating speed and the actual internal torque value, a start-up torque value corresponding to the set rotating speed under the current gear is obtained through the start-up torque characteristic; determining a maximum internal torque value corresponding to the set rotating speed under the current gear according to the set rotating speed and the external characteristics of the engine; obtaining a speed dropping coefficient corresponding to the set rotating speed at the current gear through a maximum speed dropping equation according to the set rotating speed, the set maximum speed regulating rate at the current gear, and a starting dropping torque value and a maximum internal torque value corresponding to the set rotating speed at the current gear; and updating the speed dropping coefficient parameter of the engine according to the speed dropping coefficient corresponding to the set rotating speed under the current gear.
The method and the device for updating the engine speed dropping coefficient adaptively update the engine speed dropping coefficient according to the set rotating speed and the set speed, and meet the requirement that a user freely selects the speed and the rotating speed of the engine.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. An adaptive method for engine pacing, comprising the steps of:
reading a current set rotating speed and a set maximum speed regulation rate under a current gear;
according to the set rotating speed and the actual internal torque value, a start-up torque value corresponding to the set rotating speed under the current gear is obtained through the start-up torque characteristic;
determining a maximum internal torque value corresponding to the set rotating speed under the current gear according to the set rotating speed and the external characteristics of the engine;
obtaining a speed dropping coefficient corresponding to the set rotating speed at the current gear through a maximum speed dropping equation according to the set rotating speed, the set maximum speed regulating rate at the current gear, and a starting dropping torque value and a maximum internal torque value corresponding to the set rotating speed at the current gear;
and updating the speed dropping coefficient parameter of the engine according to the speed dropping coefficient corresponding to the set rotating speed under the current gear.
2. The engine rate adjustment adaptive method according to claim 1, wherein the lift-off torque characteristic is a lift-off torque lookup table obtained through a bench calibration test at different rotation speeds and different hydraulic oil temperature characteristics.
3. The adaptive method for engine rate adjustment according to claim 2, wherein the pull-up torques corresponding to different rotation speeds and different hydraulic oil temperature characteristics in the pull-up torque lookup table are obtained by adding torque deviation values to actual internal torque values.
4. The engine rate adjustment adaptive method according to claim 1, wherein the determining, according to the set rotation speed and through an engine external characteristic, a maximum internal torque value corresponding to the set rotation speed in a current gear specifically comprises:
according to the set rotating speed, obtaining the fuel injection quantity corresponding to the set rotating speed through the rotating speed-fuel injection quantity corresponding characteristic;
and obtaining an internal torque value corresponding to the set rotating speed, namely a maximum internal torque value corresponding to the set rotating speed at the current gear, according to the corresponding characteristics of the rotating speed, the fuel injection quantity and the internal torque value.
5. The engine rate adjustment adaptive method according to claim 4, wherein the speed-injection-quantity correspondence characteristic is a speed-injection-quantity correspondence table obtained by engine characteristic calibration.
6. The adaptive method for adjusting the engine speed according to claim 4, wherein the corresponding characteristics of the set rotating speed, the fuel injection quantity and the internal torque value are a corresponding internal torque value lookup table under the characteristics of the rotating speed and the fuel injection quantity obtained through calibration of the engine characteristics.
7. The engine pacing adaptation method according to claim 1, characterized in that the maximum stall equation is embodied as:
n-α％*n＝(Mc-M0)*β；
wherein n is a set rotating speed; alpha is a set maximum rate; mcSetting a maximum internal torque value corresponding to the rotating speed under the current gear; m0Setting a torque-off value corresponding to the rotating speed under the current gear; beta is the falling speed coefficient.
8. The engine pacing rate adjustment adaptation method according to any one of claims 2-7, further comprising:
and storing the set rotating speed, the set maximum speed regulating rate under the current gear, the start-up torque value and the maximum internal torque value corresponding to the set rotating speed under the current gear and the speed dropping coefficient corresponding to the set rotating speed under the current gear.
9. An engine rate adjustment adaptive system, characterized by specifically including:
a reading module: the device is used for reading the current set rotating speed and the set maximum speed regulation rate under the gear;
the trip torque value module: the system comprises a control device, a control device and a control device, wherein the control device is used for obtaining a start-up torque value corresponding to a set rotating speed under a current gear through start-up torque characteristics according to the set rotating speed and an actual internal torque value;
a maximum internal torque value module: the maximum internal torque value corresponding to the set rotating speed under the current gear is determined according to the set rotating speed and the external characteristics of the engine;
a drop speed coefficient module: the speed dropping coefficient corresponding to the set rotating speed at the current gear is obtained through a maximum speed dropping equation according to the set rotating speed, the set maximum speed regulating rate at the current gear, and the starting torque value and the maximum internal torque value corresponding to the set rotating speed at the current gear;
the engine parameter self-adaptive updating module: and updating the speed dropping coefficient parameter of the engine according to the speed dropping coefficient corresponding to the set rotating speed under the current gear.
10. A computer-readable storage medium, having stored thereon a computer program; the computer program is executed by a processor to implement the engine pacing rate adjustment adaptive method according to any one of claims 1-8.
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