CN116025479A - Method, system, equipment and storage medium for controlling preignition of extended-range engine - Google Patents
Method, system, equipment and storage medium for controlling preignition of extended-range engine Download PDFInfo
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Abstract
The application provides a method, a system, equipment and a storage medium for controlling the pre-ignition of an extended-range engine, wherein the control method comprises the following steps: the whole vehicle controller receives a pre-ignition fault signal sent by the engine controller and acquires real-time output power of the range extender; meanwhile, an operation condition characteristic database is obtained, and the operation index of the range extender corresponding to the real-time output power is confirmed; the operating condition characteristic database comprises: a plurality of sets of range extender output power and range extender operation indexes corresponding to each set of range extender output power; the range extender operation indexes comprise: engine torque and generator speed; collecting real-time operation indexes of the range extender, including real-time torque of an engine and real-time rotation speed of a generator, and adjusting the real-time operation indexes of the range extender according to the operation indexes of the range extender; the real-time operation working condition of the range extender is changed, so that the temperature in the engine cylinder is changed, carbon deposit in the engine cylinder is discharged, the pre-ignition fault of the engine is controlled, and the economical efficiency and the dynamic property of fuel oil are ensured.
Description
Technical Field
The present disclosure relates generally to the field of engine pre-ignition technology, and in particular, to a method, system, apparatus, and storage medium for extended range engine pre-ignition control.
Background
Pre-ignition refers to the phenomenon in which a mixture is burned in advance by being ignited by a hot spot in a combustion chamber before an ignition plug fires. Such as incandescent carbon particles, protruding metal flying thorns, overheated spark plugs or red-burned exhaust valves, etc., can ignite the mixed gas in advance for ignition; as a result, the engine is overheated with the sudden sound; if the pre-ignition of the engine is not serious, no harm can be caused; but severe pre-ignition results in severe popping.
Meanwhile, because of misjudgment of the pre-ignition diagnosis faults at certain working condition points, the fuel economy and the dynamic property are low easily caused by the means that the engine controller controls the pre-ignition faults after the pre-ignition faults are detected in the prior art.
Disclosure of Invention
In view of the foregoing drawbacks and deficiencies of the prior art, it is desirable to provide an extended-range engine pre-ignition control method, system, apparatus and storage medium that address the foregoing problems.
The first aspect of the application provides a method for controlling the pre-ignition of an extended-range engine, comprising the following steps:
in response to the pre-ignition fault signal, collecting real-time output power of the range extender;
acquiring an operation condition characteristic database, and confirming an operation index of the range extender corresponding to the real-time output power; the operating condition feature database comprises: a plurality of range extender output powers and range extender operation indexes corresponding to each range extender output power; the range extender operation index comprises: engine torque, generator speed;
collecting real-time operation indexes of the range extender, wherein the real-time operation indexes comprise: and adjusting the real-time running index of the range extender according to the real-time torque of the engine and the real-time rotating speed of the generator, and driving the range extender to run for a first preset time.
According to the technical scheme provided by the embodiment of the application, after the driving range extender operates for a first preset time period, the method further comprises the following steps:
and responding to the pre-ignition fault reset signal, and continuously driving the range extender with the real-time operation index of the range extender.
According to the technical scheme provided by the embodiment of the application, after the driving range extender operates for a first preset time period, the method further comprises the following steps:
in response to the pre-ignition fault signal, the number of pre-ignition faults is cumulatively increased by 1.
According to the technical scheme provided by the embodiment of the application, after responding to the pre-ignition fault signal and adding 1 to the accumulated number of pre-ignition faults, the method further comprises the following steps:
and controlling the pre-ignition fault reset based on the pre-ignition operation adjustment database.
According to the technical scheme provided by the embodiment of the application, after the control of the pre-ignition fault reset based on the pre-ignition operation adjustment database, the range extender is continuously driven by the real-time operation index of the range extender.
According to the technical scheme provided by the embodiment of the application, before the control of the pre-ignition fault reset, the method further comprises the following steps:
the index of the detection pre-ignition counter does not increase.
According to the technical scheme provided by the embodiment of the application, the pre-ignition operation adjustment database comprises: controlling the mixture gas enrichment, reducing the valve overlap angle, limiting the maximum charge in the cylinder and controlling fuel cut.
A second aspect of the present application provides an extended range engine pre-ignition control system comprising:
the first acquisition module is configured to receive the pre-ignition fault signal and acquire the real-time output power of the range extender; the first acquisition module is further configured to acquire an operation condition characteristic database;
the first processing module is configured to confirm a range extender operation index corresponding to the real-time output power; the operating condition feature database comprises: a plurality of sets of range extender output power and range extender operation indexes corresponding to each set of range extender output power; the range extender operation index comprises: engine torque, generator speed;
the second acquisition module is configured to acquire real-time operation indexes of the range extender, wherein the real-time operation indexes comprise: real-time torque of the engine and real-time rotating speed of the generator;
the first processing module is further configured to adjust a real-time operation index of the range extender according to the operation index of the range extender, and drive the range extender to operate for a first preset time period.
A third aspect of the present application provides a terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the extended range engine pre-ignition control method as described above when executing the computer program.
A fourth aspect of the present application provides a computer readable storage medium having a computer program which, when executed by a processor, implements an extended range engine pre-ignition control method as described above.
The beneficial effects of this application lie in: based on the technical scheme provided by the application, the whole vehicle controller receives the pre-ignition fault signal sent by the engine controller, and the whole vehicle controller acquires the real-time output power of the range extender; meanwhile, comparing the real-time output power with the operation condition characteristic database, and confirming an operation index of the range extender corresponding to the real-time output power; and acquiring real-time operation indexes of the range extender, and adjusting the real-time operation indexes of the range extender according to the operation indexes of the range extender, so as to change the temperature in an engine cylinder and discharge carbon deposit in the engine cylinder, control the occurrence of the pre-ignition fault of the engine and ensure the economical efficiency and the dynamic property of fuel.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
FIG. 1 is a flow chart of an extended range engine pre-ignition control method of the present application;
FIG. 2 is a schematic diagram of an extended range engine pre-ignition control system of the present application;
FIG. 3 is a schematic diagram of the hardware architecture of the computer device of the present application;
in the figure: 1. a first acquisition module; 2. a second acquisition module; 3. a first processing module; 4. a vehicle controller; 5. an engine controller; 6. a range extender; 501. a CPU; 502. a ROM; 503. a RAM; 504. a bus; 505. an I/O interface; 506. an input section; 507. an output section; 508. a storage section; 509. a communication section; 510. a driver; 511. removable media.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
Please refer to fig. 1, which is a flowchart of a method for controlling the pre-ignition of an extended-range engine, which includes the following steps:
s1: in response to the pre-ignition fault signal, collecting real-time output power of the range extender;
s2: acquiring an operation condition characteristic database, and confirming an operation index of the range extender corresponding to the real-time output power; the operating condition feature database comprises: a plurality of range extender output powers and range extender operation indexes corresponding to each range extender output power; the range extender operation index comprises: engine torque, generator speed;
s3: collecting real-time operation indexes of the range extender, wherein the real-time operation indexes comprise: and adjusting the real-time running index of the range extender according to the real-time torque of the engine and the real-time rotating speed of the generator, and driving the range extender to run for a first preset time.
Wherein:
the engine controller is connected with the whole vehicle controller through a local area network (CAN) bus, and sends a pre-ignition fault signal through the local area network CAN bus after the engine controller detects that pre-ignition occurs in an engine cylinder;
s1: in response to the pre-ignition fault signal, collecting real-time output power of the range extender;
specifically, the whole vehicle controller receives a pre-ignition fault signal sent by the engine controller, and acquires real-time output power of the range extender;
specifically, the pre-ignition fault signal is a signal generated after the engine controller detects that pre-ignition occurs in an engine cylinder.
S2: acquiring an operation condition characteristic database, and confirming an operation index of the range extender corresponding to the real-time output power; the operating condition feature database comprises: a plurality of range extender output powers and range extender operation indexes corresponding to each range extender output power; the range extender operation index comprises: engine torque, generator speed;
specifically, the structure of the operating condition characteristic database may be as follows in table 1:
TABLE 1 Structure of operating condition characteristic database
| Output power of range extender | W1 | W2 | W3 | ...... | Wn-2 | Wn-1 | Wn |
| Range extender operation index | T1 | T2 | T3 | ...... | Tn-2 | Tn-1 | Tn |
The output power of each range extender corresponds to a plurality of range extender operation indexes; since the formula power = torque x rotational speed/9550, the operating index of the range extender is the torque of the engine and the rotational speed of the generator; the operation indexes of each range extender output power corresponding to the plurality of range extenders can be shown in the following table 2:
table 2 range extender operating index corresponding to output power
| Engine torque | N1 | N2 | N3 | N4 | N5 | N6 | N7 | N8 | N9 | N10 |
| Rotation speed of generator | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
S3: collecting real-time operation indexes of the range extender, wherein the real-time operation indexes comprise: the real-time torque of the engine and the real-time rotating speed of the generator are adjusted according to the running index of the range extender, and the range extender is driven to run for a first preset time period;
specifically, because the engine operates according to the indexes of the operation condition characteristic database when no fault exists, under the same output power condition, the collected real-time torque of the engine and the real-time rotating speed of the generator are consistent with any one group of corresponding operation indexes, indexes consistent with the real-time torque of the engine and the real-time rotating speed of the generator are screened out from the operation indexes of the range extender, and the real-time torque of the engine is increased or reduced according to actual conditions in the range of the operation indexes of the range extender, so that the real-time rotating speed of the generator is correspondingly changed;
for example: the real-time output power of the range extender is 10.5W; confirming a range extender operation index corresponding to the real-time output power in the operation condition characteristic database;
the corresponding range extender operation index with the real-time power of 10.5W is shown in the table 3, and the collected real-time torque of the engine is 40Nm and the real-time rotating speed of the generator is 2500rpm; in the range of the operation index of the range extender, selecting to increase or decrease the real-time torque of the engine according to the operation condition of the range extender, wherein the real-time rotating speed of the generator is correspondingly changed; in the present embodiment, reducing the real-time torque of the engine to 25Nm; the real-time rotational speed of the corresponding generator becomes 4000rpm;
TABLE 3 Range extender operation index for real-time power of 10.5W
Working principle: the whole vehicle controller receives the pre-ignition fault signal sent by the engine controller, and acquires the real-time output power of the range extender; meanwhile, an operation condition characteristic database is obtained, and the operation index of the range extender corresponding to the real-time output power is confirmed; the operating condition feature database comprises: a plurality of sets of range extender output power and range extender operation indexes corresponding to each set of range extender output power; the range extender operation index comprises: engine torque and engine speed; collecting real-time operation indexes of the range extender, including real-time torque of an engine and real-time rotation speed of a generator, and adjusting the real-time operation indexes of the range extender according to the operation indexes of the range extender; the real-time operation working condition of the range extender is changed, so that the temperature in the engine cylinder is changed, carbon deposit in the engine cylinder is discharged, the pre-ignition fault of the engine is controlled, and the economical efficiency and the dynamic property of fuel oil are improved.
In some embodiments, after the driving range extender operates for a first preset period of time, the method further includes the following steps:
s4: and responding to the pre-ignition fault reset signal, and continuously driving the range extender with the real-time operation index of the range extender.
Specifically, after the range extender operates for a first preset time period according to the regulated operation index, the engine controller detects that the pre-ignition index of the engine is not increased any more, and the whole vehicle controller receives a pre-ignition fault reset signal sent by the engine controller and controls the range extender to continue to operate according to the real-time operation index of the range extender;
specifically, the first preset duration is calibrated according to actual conditions of different vehicles, and in this embodiment, the first preset duration is 15 minutes.
In some embodiments, after the driving range extender operates for a first preset period of time, the method further includes the following steps:
s5: in response to the pre-ignition fault signal, the number of pre-ignition faults is cumulatively increased by 1.
Specifically, after the range extender operates for a first preset time period according to the adjusted operation index, the engine controller detects that the pre-ignition index of the engine continues to be increased, and the whole vehicle controller receives a pre-ignition fault signal sent by the engine controller, and the cumulative sum of the pre-ignition fault times is increased by 1.
In some embodiments, in response to the pre-ignition fault signal, the cumulative addition of the number of pre-ignition faults to 1 further comprises:
s6: and controlling the pre-ignition fault reset based on the pre-ignition operation adjustment database.
Specifically, after the range extender operates for a first preset time period according to the adjusted operation index, the engine controller detects that the pre-combustion index of the engine is continuously increased, so that the occurrence of pre-combustion cannot be controlled by adjusting the operation working condition of the range extender; at this time, the whole vehicle controller receives the pre-ignition fault signal sent by the engine controller, the number of pre-ignition faults is added by 1, and the engine controller calls a pre-ignition operation adjustment database configured by itself until the pre-ignition index of the engine is detected not to be increased any more, and the pre-ignition fault is controlled to be reset.
In some embodiments, the range extender continues to be driven with its real-time operating index after the control of the pre-ignition fault reset based on the pre-ignition operation adjustment database.
Specifically, after the control of the pre-ignition fault reset, the engine controller sends a pre-ignition fault reset signal to the whole vehicle controller, and the whole vehicle controller controls the range extender to continue to operate according to the real-time operation index of the range extender.
In some embodiments, prior to controlling the pre-ignition fault reset further comprises:
the index of the detection pre-ignition counter does not increase.
Specifically, the engine controller is connected with a pre-ignition counter, the pre-ignition counter is used for reflecting whether pre-ignition of the engine occurs or not, when the engine controller detects that the index of the pre-ignition counter is not increased any more, the pre-ignition condition of the engine is controlled, and the engine controller sends the pre-ignition fault reset signal to the whole vehicle controller; when the engine controller detects that the index of the pre-ignition counter is continuously increased, the pre-ignition condition of the engine is not controlled, and the engine controller continuously sends the pre-ignition fault signal to the whole vehicle controller;
in certain embodiments, the pre-ignition operation adjustment database comprises: controlling the mixture gas enrichment, reducing the valve overlap angle, limiting the maximum charge in the cylinder and controlling fuel cut.
Specifically, according to different conditions, the engine controller invokes different pre-ignition operation adjustment strategies to adjust; the pre-ignition operation adjustment database includes:
(1) Controlling the mixture gas to be enriched; after the engine controller recognizes the pre-combustion, the temperature in the cylinder is reduced through the enrichment of the mixed gas, and the subsequent occurrence of the pre-combustion is restrained;
(2) Reducing the valve overlap angle; the engine controller recognizes that exceeding a threshold value of the VVT (variable valve timing system) action for the number of times of pre-ignition would trigger the VVT to move in a direction in which the valve overlap angle decreases, in order to reduce in-cylinder parameters and exhaust gas, reducing the tendency of pre-ignition; while preventing the catalyst from increasing in temperature;
(3) Limiting the in-cylinder maximum charge; reducing the maximum in-cylinder charge reduces in-cylinder temperature and reduces propensity for pre-ignition
(4) Oil cut-off control; when the pre-combustion tendency is particularly serious, rich mixture and limited in-cylinder charge cannot effectively inhibit pre-combustion, and in order to quickly protect an engine, fuel cut control is directly adopted for a cylinder, and the fuel cut control has the greatest influence on drivability, so that the opening threshold of the fuel cut control is relatively high.
Example 2
Please refer to fig. 2 for a pre-ignition control system of an extended-range engine, which includes:
the first acquisition module 1 is configured to receive the pre-ignition fault signal and acquire the real-time output power of the range extender; the first acquisition module 1 is further configured to acquire an operation condition characteristic database;
a first processing module 3, where the first processing module 3 is configured to confirm a range extender operation index corresponding to the real-time output power; the operating condition feature database comprises: a plurality of sets of range extender output power and range extender operation indexes corresponding to each set of range extender output power; the range extender operation index comprises: engine torque, engine speed;
the second collection module 2, the second collection module 2 is configured to collect the real-time operation index of the range extender, the real-time operation index includes: real-time torque of the engine and real-time rotating speed of the generator;
the first processing module 3 is further configured to adjust a real-time operation index of the range extender according to the operation index of the range extender, and drive the range extender to operate for a first preset duration.
Specifically, the extended range engine pre-ignition control system comprises an engine controller 5, a whole vehicle controller 4 and an extended range unit 6; the whole vehicle controller 4 comprises a first acquisition module 1, a second acquisition module 2 and a first processing module 3;
specifically, the input end of the first acquisition module 1 is connected with the output end of the engine controller 5, the first acquisition module 1 is configured to receive a pre-ignition fault signal, acquire real-time output power of the range extender, and the first acquisition module 1 is further configured to acquire an operation condition characteristic database;
the output end of the first acquisition module 1 is connected with the input end of the first processing module 3, and the first processing module 3 is configured to confirm a range extender operation index corresponding to the real-time output power; the operating condition feature database comprises: a plurality of sets of range extender output power and range extender operation indexes corresponding to each set of range extender output power; the range extender operation index comprises: engine torque, engine speed;
the input end of the second acquisition module 2 is connected with the output end of the engine controller 5, and the configuration is used for acquiring real-time operation indexes of the range extender, wherein the real-time operation indexes comprise: real-time torque of the engine and real-time rotating speed of the generator;
the output end of the second acquisition module 2 is connected with the input end of the first processing module 3, the output end of the first processing module 3 is connected with the range extender 6, and the first processing module 3 is further configured to adjust the real-time operation index of the range extender according to the operation index of the range extender, and drive the range extender to operate for a first preset time period;
specifically, the engine controller 5 is connected with the range extender, and the engine controller 5 is used for collecting the real-time working condition of the range extender and controlling the pre-ignition by calling a pre-ignition operation adjustment database;
specifically, after the range extender operates for a first preset time period according to the adjusted operation index, the engine controller 5 detects that the pre-ignition index of the engine is not increased any more, and the whole vehicle controller 4 receives a pre-ignition fault reset signal sent by the engine controller 5 and controls the range extender to continue to operate according to the real-time operation index of the range extender;
specifically, after the range extender operates for a first preset time period according to the adjusted operation index, the engine controller 5 detects that the pre-ignition index of the engine continues to be increased, and the whole vehicle controller 4 receives a pre-ignition fault signal sent by the engine controller 5, and the cumulative sum of the pre-ignition fault times is 1;
specifically, after the number of the pre-combustion faults is added by 1, the engine controller 5 invokes a pre-combustion operation adjustment database configured by itself until the pre-combustion index of the engine is detected not to be increased, the pre-combustion faults are reset, and the range extender is controlled to continue to operate according to the real-time operation index of the range extender.
Example 3
The application also provides a terminal device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, and is characterized in that the processor realizes the extended range engine pre-ignition control method when executing the computer program. Please refer to fig. 3 for a schematic diagram of a hardware structure of a computer device.
The computer system includes a Central Processing Unit (CPU) 501, which can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) 502 or a program loaded from a storage section into a Random Access Memory (RAM) 503. In the RAM503, various programs and data required for the system operation are also stored. The CPU 501, ROM 502, and RAM503 are connected to each other through a bus 504. An input/output (I/O) interface 505 is also connected to bus 504.
The following components are connected to the I/O interface 505: an input section 506 including a keyboard, a mouse, and the like; an output section including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), etc., and a speaker, etc.; a storage portion 508 including a hard disk and the like; and a communication section 509 including a network interface card such as a LAN card, a modem, or the like. The communication section 509 performs communication processing via a network such as the internet. The drives are also connected to the I/O interface 505 as needed. A removable medium 511 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 510 as needed so that a computer program read therefrom is mounted into the storage section 508 as needed.
In particular, the process described above for the extended range engine pre-ignition control method may be implemented as a computer software program according to embodiments of the present invention. For example, embodiments of the present invention relate to an extended-range engine pre-ignition control method that includes a computer program product comprising a computer program embodied on a computer-readable medium, the computer program comprising program code for performing the method shown in the flowchart. In such embodiments, the computer program may be downloaded and installed from a network via a communication portion, and/or installed from a removable medium. The above-described functions defined in the system of the present application are performed when the computer program is executed by a Central Processing Unit (CPU) 501.
As another aspect, the present application further provides a computer readable medium having a computer program, wherein the computer program when executed by a processor implements the extended range engine pre-ignition control method as set forth above.
The computer readable medium shown in the present invention may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having 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 portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present invention, however, the computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units involved in the embodiments of the present invention may be implemented by software, or may be implemented by hardware, and the described units may also be provided in a processor. Wherein the names of the units do not constitute a limitation of the units themselves in some cases. The described units or modules may also be provided in a processor, for example, as: a processor comprises a first acquisition module 1, a second acquisition module 2, and a first processing module 3. Wherein the names of the units or modules do not in some cases constitute a limitation of the units or modules themselves.
As another aspect, the present application also provides a computer-readable medium that may be contained in the electronic device described in the above embodiment; or may exist alone without being incorporated into the electronic device. The computer readable medium carries one or more programs which, when executed by one of the electronic devices, cause the electronic device to implement the extended range engine pre-ignition control method as described in the above embodiments.
It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.
Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order or that all illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (10)
1. A method for controlling the pre-ignition of a range-extended engine is characterized by comprising the following steps:
in response to the pre-ignition fault signal, collecting real-time output power of the range extender;
acquiring an operation condition characteristic database, and confirming an operation index of the range extender corresponding to the real-time output power; the operating condition feature database comprises: a plurality of range extender output powers and range extender operation indexes corresponding to each range extender output power; the range extender operation index comprises: engine torque, generator speed;
collecting real-time operation indexes of the range extender, wherein the real-time operation indexes comprise: and adjusting the real-time running index of the range extender according to the real-time torque of the engine and the real-time rotating speed of the generator, and driving the range extender to run for a first preset time.
2. The extended range engine pre-ignition control method according to claim 1, further comprising the steps of, after the driving extender is operated for a first preset period of time:
and responding to the pre-ignition fault reset signal, and continuously driving the range extender with the real-time operation index of the range extender.
3. The extended range engine pre-ignition control method according to claim 2, further comprising the steps of, after the driving extender is operated for a first preset period of time:
in response to the pre-ignition fault signal, the number of pre-ignition faults is cumulatively increased by 1.
4. A method for controlling the pre-ignition of an extended-range engine according to claim 3, further comprising, after adding 1 to the cumulative number of pre-ignition failures in response to the pre-ignition failure signal:
and controlling the pre-ignition fault reset based on the pre-ignition operation adjustment database.
5. The method according to claim 4, wherein the range extender is continuously driven with a real-time operation index of the range extender after the control of the pre-ignition failure reset based on the pre-ignition operation adjustment database.
6. The extended-range engine pre-ignition control method according to claim 5, characterized by further comprising, before the control of the pre-ignition failure reset:
the index of the detection pre-ignition counter does not increase.
7. The extended-range engine pre-ignition control method according to claim 4, wherein the pre-ignition operation adjustment database includes: controlling the mixture gas enrichment, reducing the valve overlap angle, limiting the maximum charge in the cylinder and controlling fuel cut.
8. An extended range engine pre-ignition control system, comprising:
the first acquisition module (1) is configured to receive the pre-ignition fault signal and acquire the real-time output power of the range extender; the first acquisition module (1) is further configured to acquire an operation condition characteristic database;
a first processing module (3), the first processing module (3) being configured to confirm a range extender operation index corresponding to the real-time output power; the operating condition feature database comprises: a plurality of sets of range extender output power and range extender operation indexes corresponding to each set of range extender output power; the range extender operation index comprises: engine torque, generator speed;
the second collection module (2), the second collection module (2) is configured to gather the real-time operation index of journey-increasing ware, real-time operation index includes: real-time torque of the engine and real-time rotating speed of the generator;
the first processing module (3), the first processing module (3) is further configured to adjust the real-time operation index of the range extender according to the operation index of the range extender, and drive the range extender to operate for a first preset duration.
9. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the extended range engine pre-ignition control method according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium having a computer program, wherein the computer program, when executed by a processor, implements the extended-range engine pre-ignition control method according to any one of claims 1 to 7.
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| CN202310085992.1A CN116025479A (en) | 2023-02-02 | 2023-02-02 | Method, system, equipment and storage medium for controlling preignition of extended-range engine |
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| CN202310085992.1A CN116025479A (en) | 2023-02-02 | 2023-02-02 | Method, system, equipment and storage medium for controlling preignition of extended-range engine |
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