Control method, device and equipment of optical single-cylinder engine and storage medium
By collecting the cylinder pressure and discharge temperature change rate data of the optical single-cylinder engine in real time, and automatically controlling the logic circuit of the fuel injection system to send signals, it solves the problems of premature combustion and knocking caused by artificial judgment lag, and achieves stable operation and safety of the engine.
Patent Information
- Application Number
- CN202510597287.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2025-08-15
AI Technical Summary
In the prior art, there is a lag and insufficient experience in determining whether the oil is required to be cut off, which leads to the engine running multiple cycles after the oil is cut off, which can easily lead to abnormal working conditions such as premature combustion and knocking.
By collecting data such as cylinder pressure value, temperature discharge value and cylinder pressure change rate of the optical single-cylinder engine in real time, the logic control circuit of the fuel injection system will automatically control the transmission control signal, realizing the automatic fuel injection mode or shutdown of the optical single-cylinder engine.
Timely oil disconnection is achieved, and abnormal working conditions such as premature combustion and knocking are avoided, which improves the operating stability and safety of the engine.
Smart Images
Figure CN120487402A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of engine fuel injection technology, and in particular to a control method, device, equipment and storage medium for an optical single-cylinder engine. Background Art
[0002] Hybrid and extended-range new energy vehicles still utilize engines as the primary driving force and powertrain for range. As the core driving force, high-efficiency hybrid engines are a hot topic of research. Research into combustion systems, a core technology for hybrid engines, is crucial for optimizing the optical single-cylinder engine's combustion system. Mastering combustion system optimization holds the key to developing high-efficiency hybrid engines. As the most crucial component of the combustion system, the development and testing of the injection system is essential. Ensuring that the fuel injected into the cylinder burns more fully and efficiently is a key core technology for the injection system. Related technologies primarily rely on manual fuel cutoffs based on engine operating parameters. However, determining whether operation is normal requires a combination of multiple parameters, which can lead to delays and limited experience. Consequently, the engine can continue to operate for several cycles after a fuel cutoff command is issued, potentially adversely affecting the operation of the optical single-cylinder engine and even causing abnormal operating conditions such as pre-ignition and knock. Summary of the Invention
[0003] The present application provides a control method, device, equipment and computer-readable storage medium for an optical single-cylinder engine, which can solve the problems of lag and lack of experience in the prior art when manually judging whether to cut off the fuel supply. After the fuel cut-off command is issued, the engine will still run for multiple cycles, which may easily have an adverse effect on the operation of the optical single-cylinder engine and even cause technical problems such as abnormal working conditions such as pre-ignition and detonation.
[0004] In a first aspect, an embodiment of the present application provides a control method for an optical single-cylinder engine, the control method for an optical single-cylinder engine comprising:
[0005] Real-time collection of startup data or first operating data of the optical single-cylinder engine, wherein the startup data includes a cylinder pressure value and an exhaust temperature value, and the first operating data includes a cylinder pressure value, a cylinder pressure change rate, and an exhaust temperature value;
[0006] acquiring a control signal sent by a logic control circuit in an automatic fuel injection control system according to the startup data or the operation data;
[0007] According to the control signal, the optical single-cylinder engine is controlled to be in the automatic fuel injection mode or not in the automatic fuel injection mode.
[0008] In combination with the first aspect, in one embodiment, the control signal includes a first control signal and a second control signal; and controlling the optical single-cylinder engine to be in an automatic fuel injection mode on state or in an automatic fuel injection mode off state according to the control signal includes:
[0009] If the control signal is the first control signal, power is supplied to close the electromagnetic relay inside the optical single-cylinder engine, so that the optical single-cylinder engine is in an automatic fuel injection mode;
[0010] Alternatively, if the control signal is the second control signal, the power is cut off to disconnect the electromagnetic relay inside the optical single-cylinder engine, so that the optical single-cylinder engine is not in the automatic injection mode.
[0011] In conjunction with the first aspect, in one embodiment, obtaining a control signal sent by a logic control circuit in an automatic fuel injection system according to the startup data or the operating data includes:
[0012] acquiring a control signal sent by a logic control circuit in an automatic fuel injection control system according to the startup data and a first preset limit condition;
[0013] Alternatively, a control signal sent by a logic control circuit in an automatic fuel injection control system is obtained according to the operating data and the second preset limit condition.
[0014] In conjunction with the first aspect, in one embodiment, obtaining a control signal sent by a logic control circuit in an automatic fuel injection system according to the startup data and the first preset limit condition includes:
[0015] If the cylinder pressure value is less than the first preset cylinder pressure limit value, and the exhaust temperature value is less than the first preset temperature limit value, the obtained control signal sent by the logic control circuit in the automatic control injection system is the first control signal;
[0016] If the cylinder pressure value is less than the first preset cylinder pressure limit value, or the exhaust temperature value is less than the first preset temperature limit value, the acquired control signal sent by the logic control circuit in the automatic control injection system is the second control signal.
[0017] In combination with the first aspect, in one embodiment, obtaining a control signal sent by a logic control circuit in an automatic fuel injection control system according to the operating data and the second preset limit condition includes:
[0018] If the cylinder pressure value is less than a second preset cylinder pressure limit value, the exhaust temperature value is less than a second preset temperature limit value, and the cylinder pressure change rate is less than a first preset cylinder pressure change rate limit value, then the obtained control signal sent by the logic control circuit in the automatic control injection system is the first control signal;
[0019] If the cylinder pressure value is greater than the second preset cylinder pressure limit, the exhaust temperature value is greater than the second preset temperature limit, or the cylinder pressure change rate is greater than the first preset cylinder pressure change rate limit, then the control signal sent by the logic control circuit in the automatic control injection system is the second control signal.
[0020] In combination with the first aspect, in one embodiment, after the optical single-cylinder engine is in the automatic oil injection mode, the method further includes:
[0021] collecting second operating data, the second operating data including a cylinder pressure value, a cylinder pressure change rate, and an exhaust temperature value;
[0022] If the cylinder pressure value is greater than a second preset cylinder pressure limit value, the exhaust temperature value is greater than a second preset temperature limit value, or the cylinder pressure change rate is greater than a first preset cylinder pressure change rate limit value, then the obtained control signal sent by the logic control circuit in the automatic control injection system is the second control signal;
[0023] According to the second control signal, the automatic fuel injection mode is turned off.
[0024] In combination with the first aspect, in one embodiment, after the optical single-cylinder engine is in the automatic oil injection mode, the method further includes:
[0025] Performing abnormality detection on the signal acquisition system of the optical single-cylinder engine;
[0026] If it is determined that the signal acquisition system of the optical single-cylinder engine is abnormal, the automatic fuel injection mode of the optical single-cylinder engine is directly turned off.
[0027] In a second aspect, an embodiment of the present application provides a control device for an optical single-cylinder engine, the control device for the optical single-cylinder engine comprising:
[0028] An acquisition module, configured to acquire startup data or operating data of the optical single-cylinder engine in real time, wherein the startup data includes cylinder pressure value and exhaust temperature value, and the operating data includes cylinder pressure value, cylinder pressure change rate and exhaust temperature value;
[0029] An acquisition module, configured to acquire a control signal sent by a logic control circuit in an automatic control fuel injection system according to the startup data or the operation data;
[0030] The control module is used to control the optical single-cylinder engine to be in the automatic fuel injection mode or not in the automatic fuel injection mode according to the control signal.
[0031] In a third aspect, an embodiment of the present application provides a control device for an optical single-cylinder engine, which includes a processor, a memory, and a control program for the optical single-cylinder engine stored in the memory and executable by the processor, wherein when the control program for the optical single-cylinder engine is executed by the processor, the steps of the above-mentioned control method for the optical single-cylinder engine are implemented.
[0032] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, characterized in that a control program of an optical single-cylinder engine is stored on the computer-readable storage medium, wherein when the control program of the optical single-cylinder engine is executed by a processor, the steps of the control method of the optical single-cylinder engine as described above are implemented.
[0033] The beneficial effects brought about by the technical solution provided by the embodiment of the present application include at least: collecting the startup data or first operating data of the optical single-cylinder engine in real time, wherein the startup data includes the cylinder pressure value and the exhaust temperature value, and the first operating data includes the cylinder pressure value, the cylinder pressure change rate and the exhaust temperature value; obtaining the control signal sent by the logic control circuit in the automatic control injection system according to the startup data or the operating data; controlling the optical single-cylinder engine to be in the automatic injection mode or not in the automatic injection mode according to the control signal, solving the problem of lag and lack of experience in the process of manual judgment of whether to cut off the oil in the related art, and the technical problem that the engine will still run for multiple cycles after the oil cut-off instruction is issued, resulting in abnormal working conditions such as pre-ignition and knocking. The present application can achieve the technical effect of timely cutting off the oil and avoiding abnormal working conditions such as pre-ignition and knocking. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] Figure 1 This is a flow chart of an embodiment of a control method for an optical single-cylinder machine of the present application;
[0035] Figure 2 For this application Figure 1 Detailed flow chart of step S20;
[0036] Figure 3 This is a functional module diagram of an embodiment of a control device for an optical single-cylinder machine of the present application;
[0037] Figure 4 This is a schematic diagram of the hardware structure of the control device of the optical single-cylinder machine involved in the embodiment of the present application. DETAILED DESCRIPTION
[0038] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0039] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. The terms "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit the "first", "second" and "third" to different types.
[0040] In the description of the embodiments of this application, the words "exemplary," "for example," or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary," "for example," or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary," "for example," or "for example" is intended to present the relevant concepts in a concrete manner.
[0041] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, “multiple” refers to two or more than two.
[0042] In some processes described in the embodiments of the present application, multiple operations or steps are included that appear in a specific order. However, it should be understood that these operations or steps may not be performed in the order in which they appear in the embodiments of the present application or may be performed in parallel. The sequence numbers of the operations are only used to distinguish between different operations, and the sequence numbers themselves do not represent any order of execution. In addition, these processes may include more or fewer operations, and these operations or steps may be performed in sequence or in parallel, and these operations or steps may be combined.
[0043] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.
[0044] In a first aspect, an embodiment of the present application provides a control method for an optical single-cylinder engine.
[0045] In one embodiment, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the control method of the optical single-cylinder machine of this application. Figure 1 As shown, the control method of the optical single-cylinder machine includes:
[0046] Step S10: collecting startup data or first operating data of the optical single-cylinder engine in real time, wherein the startup data includes a cylinder pressure value and an exhaust temperature value, and the first operating data includes a cylinder pressure value, a cylinder pressure change rate, and an exhaust temperature value;
[0047] For example, startup data primarily refers to key parameters collected during the startup process of an optical single-cylinder engine, including cylinder pressure and exhaust temperature. This data is used to evaluate the engine's startup performance and optimize fuel injection and ignition timing during startup.
[0048] The first operating data refers to the key parameters that need to be collected during the initial operation of the optical single-cylinder engine, including cylinder pressure (Cylinder Pressure), cylinder pressure change rate (Rate of Pressure Rise, RPR), and exhaust temperature (Exhaust Temperature). The first operating data is used to evaluate the operating stability of the single-cylinder engine, analyze pressure and temperature changes during the combustion process, and optimize the engine's fuel injection strategy and ignition timing. The cylinder pressure change rate (RPR) is used to assess the intensity of the combustion process, help determine whether the combustion is stable, and avoid detonation.
[0049] Frequency of data collection:
[0050] Cylinder pressure value: Usually a higher sampling frequency is required, such as once every 50ms or 100ms, to capture the rapid pressure changes during the combustion process.
[0051] Exhaust temperature value: Since temperature changes relatively slowly, a lower sampling frequency can usually be used, such as once every 500ms or 1s.
[0052] Cylinder pressure change rate: obtained through subsequent calculation of the time series data of the cylinder pressure value, with the sampling frequency being the same as the cylinder pressure value.
[0053] Step S20: acquiring a control signal sent by a logic control circuit in an automatic control fuel injection system according to the startup data or the operation data;
[0054] For example, when the engine is about to start, startup data is acquired in real time, including measured exhaust temperature and cylinder pressure values. If the exhaust temperature is detected to be within its limits, the engine is operating normally, and the automatic fuel injection control system outputs a high-level exhaust temperature signal 1 in the control logic circuit. Based on this logic, if the cylinder pressure is detected to be within its limits, the automatic fuel injection control system outputs a high-level cylinder pressure signal 1 in the control logic circuit. These two high-level signals 1 are combined through an AND gate circuit in the internal logic control circuit, resulting in a high-level control signal 1.
[0055] After the engine starts and operates normally, it acquires real-time operating data, including exhaust temperature, cylinder pressure, and cylinder pressure rate of change. If the exhaust temperature is detected to be within its limits, the engine is operating normally, and the automatic fuel injection system outputs a high-level signal 1 for the exhaust temperature signal in the control logic circuit. Similarly, if the cylinder pressure and cylinder pressure rate of change are also within their limits, the automatic fuel injection system outputs a high-level signal 1 for the exhaust temperature signal and a high-level signal 1 for the cylinder pressure rate of change in the control logic circuit. If the cylinder pressure, exhaust temperature, and cylinder pressure rate of change signals are all high-level signals 1, the internal logic control circuit AND gate circuit outputs a high-level signal 1, turning on power to the injector.
[0056] Step S30: According to the control signal, the optical single-cylinder engine is controlled to be in the automatic fuel injection mode or not in the automatic fuel injection mode.
[0057] Exemplarily, if the control signal is a high-level signal 1, the internal electromagnetic relay of the optical single-cylinder engine is energized and attracted, and then the injector is energized and starts automatic fuel injection, that is, it is in automatic fuel injection mode.
[0058] If the control signal is a low-level signal 0, the internal electromagnetic relay controlling the optical single-cylinder engine is powered off, and the internal electromagnetic relay of the optical single-cylinder engine cannot be energized, and the injector cannot be energized, and the injector cannot start the injection mode, that is, it is not in automatic injection mode.
[0059] Specifically, the control signal includes a first control signal and a second control signal; controlling the optical single-cylinder engine to be in the automatic fuel injection mode on state or the automatic fuel injection mode off state according to the control signal includes: if the control signal is the first control signal, then power is turned on to close the electromagnetic relay inside the optical single-cylinder engine, so that the optical single-cylinder engine is in the automatic fuel injection mode; or, if the control signal is the second control signal, then power is turned off to disconnect the electromagnetic relay inside the optical single-cylinder engine, so that the optical single-cylinder engine is not in the automatic fuel injection mode.
[0060] Exemplarily, the first control signal is a low-level signal 0, and the second control signal is a high-level signal 1.
[0061] When the system needs to activate the automatic fuel injection function of the optical single-cylinder engine, the control module sends a first control signal. This signal energizes the electromagnetic relay inside the optical single-cylinder engine, closing it. Once the relay is closed, it connects the automatic fuel injection circuit, activating the injector and starting the automatic fuel injection mode.
[0062] When the system needs to disable the automatic fuel injection function of the optical single-cylinder engine, the control module sends a second control signal. This signal de-energizes the electromagnetic relay inside the optical single-cylinder engine, causing it to open. Once the relay opens, the automatic fuel injection circuit is disconnected, and the injector stops functioning, thus disabling the automatic fuel injection mode.
[0063] Specifically, after the optical single-cylinder engine is in the automatic injection mode, it also includes: collecting second operating data, the second operating data including the cylinder pressure value, the cylinder pressure change rate and the exhaust temperature value; if the cylinder pressure value is greater than the second preset cylinder pressure limit, the exhaust temperature value is greater than the second preset temperature limit, or the cylinder pressure change rate is greater than the first preset cylinder pressure change rate limit, then the control signal sent by the logic control circuit in the automatic control injection system is obtained as the second control signal; according to the second control signal, the automatic injection mode is turned off.
[0064] Exemplarily, the system compares the collected cylinder pressure value with a second preset cylinder pressure limit. If the cylinder pressure value exceeds the limit, it indicates that the internal pressure of the cylinder is too high, and there may be an abnormality (such as uneven combustion, overload, etc.).
[0065] At the same time, the system also compares the exhaust temperature value with a second preset temperature limit. If the exhaust temperature value exceeds the limit, it means that the heat load on the combustion chamber is too high, which may cause engine overheating or damage.
[0066] The system also calculates the cylinder pressure change rate and compares it to a first preset cylinder pressure change rate limit. If the cylinder pressure change rate is too large, it indicates that the combustion process is unstable, possibly due to vibration or shock load.
[0067] If any of the above conditions (cylinder pressure value > second preset cylinder pressure limit, or exhaust temperature value > second preset temperature limit, or cylinder pressure change rate > first preset cylinder pressure change rate limit) is triggered, the system will perform the following operations:
[0068] The logic control circuit generates a second control signal and sends the signal to an execution module of the automatic fuel injection system.
[0069] According to the received second control signal, the system will turn off the automatic oil injection mode and stop the lubrication operation of the injector.
[0070] For example, in a certain internal combustion engine installation, the following preset limits are set:
[0071] Second preset cylinder pressure limit = 120 bar
[0072] Second preset temperature limit = 600°C
[0073] First preset cylinder pressure change rate limit = 10 bar / second
[0074] During operation, the system collects the following data:
[0075] Cylinder pressure value = 125 bar (exceeds the second preset cylinder pressure limit)
[0076] Exhaust temperature value = 580℃ (does not exceed the second preset temperature limit)
[0077] Cylinder pressure change rate = 12 bar / second (exceeds the first preset cylinder pressure change rate limit)
[0078] Because both the cylinder pressure value and the cylinder pressure change rate exceed preset limits, the system triggers the control logic, sends a second control signal, and disables the automatic injection mode. At this point, the injector stops operating, reducing the risk of equipment damage caused by abnormal operation.
[0079] Specifically, after the optical single-cylinder engine is in the automatic fuel injection mode, it also includes: performing abnormality detection on the signal acquisition system of the optical single-cylinder engine; if it is determined that the signal acquisition system of the optical single-cylinder engine is abnormal, directly shutting down the automatic fuel injection mode of the optical single-cylinder engine.
[0080] For example, the collected signals include but are not limited to: injection volume, injection pressure, operating temperature, and vibration frequency. The system will analyze the collected signals in real time to determine whether they are within the preset normal range. If any of the following abnormal conditions are detected, the protection mechanism will be triggered:
[0081] The signal is outside the normal range: for example, the injection pressure exceeds the preset maximum or minimum value.
[0082] Signal loss or noise interference: For example, a sensor failure causes the signal to be distorted or completely absent.
[0083] Abnormal signal fluctuations: For example, a sudden increase in vibration frequency may indicate the presence of foreign objects or loose parts inside the device.
[0084] Processing steps after the exception is triggered:
[0085] If an anomaly is detected, the system will immediately record the anomaly information in a log file for subsequent diagnosis and analysis.
[0086] The system will send a shutdown signal to the control module of the optical single-cylinder engine through the logic control unit.
[0087] The automatic oil injection mode will be turned off immediately to prevent excessive oil consumption, equipment damage or other safety hazards caused by abnormal operation.
[0088] In this embodiment, by collecting startup data or first operating data of an optical single-cylinder engine in real time, wherein the startup data includes cylinder pressure values and exhaust temperature values, and the first operating data includes cylinder pressure values, cylinder pressure change rates, and exhaust temperature values; obtaining a control signal sent by a logic control circuit in an automatic fuel injection control system based on the startup data or the operating data; and controlling the optical single-cylinder engine to be in automatic fuel injection mode or not based on the control signal. This solves the problem of lag and lack of experience in the process of manually determining whether to cut off fuel in the related art. After the fuel cut command is issued, the engine will continue to run for multiple cycles, which can adversely affect the operation of the optical single-cylinder engine and even cause abnormal operating conditions such as pre-ignition and knock. This embodiment provides a method for timely cutting off fuel, avoiding technical problems such as pre-ignition and knock.
[0089] Furthermore, in one embodiment, referring to Figure 2 , Figure 2 For this application Figure 1 Detailed flow chart of step S20 in FIG. Figure 2 As shown, the obtaining of the control signal sent by the logic control circuit in the automatic control fuel injection system according to the startup data or the operation data includes:
[0090] Step S21: acquiring a control signal sent by a logic control circuit in an automatic control fuel injection system according to the startup data and a first preset limit condition;
[0091] Exemplarily, the first preset condition includes: a cylinder pressure value is less than a first preset cylinder pressure limit value, and an exhaust temperature value is less than a first preset temperature limit value.
[0092] If one of the startup data is not within its limit range, the output signal is a low-level signal 0. If the cylinder pressure value is not within its limit range, the output cylinder pressure signal is a low-level signal 0. Then, through the internal logic control circuit and gate circuit, the output control signal is a low-level signal 0.
[0093] Specifically, the control signal sent by the logic control circuit in the automatic control fuel injection system is obtained based on the startup data and the first preset limit condition, including: if the cylinder pressure value is less than the first preset cylinder pressure limit, and the exhaust temperature value is less than the first preset temperature limit, then the control signal sent by the logic control circuit in the automatic control fuel injection system is the first control signal; if the cylinder pressure value is less than the first preset cylinder pressure limit, or the exhaust temperature value is less than the first preset temperature limit, then the control signal sent by the logic control circuit in the automatic control fuel injection system is the second control signal.
[0094] Exemplarily, the first preset cylinder pressure limit is 10 bar, the first preset temperature limit is 100° C., and the first control signal is a high level signal 1 .
[0095] If the cylinder pressure is less than 10 bar and the exhaust temperature is less than 100°C, the cylinder pressure signal is output as a high-level signal 1, and the exhaust temperature signal is output as a high-level signal 1. Subsequently, the cylinder pressure signal and the exhaust temperature signal are input into the internal logic control circuit and the gate circuit, and the output control signal is a high-level signal 1.
[0096] If the cylinder pressure is greater than 10 bar and the exhaust temperature is greater than 100°C, the cylinder pressure output signal is a low-level signal of 0, and the exhaust temperature output signal is a low-level signal of 0. After that, the cylinder pressure signal and the exhaust temperature signal are input into the internal logic control circuit and the gate circuit, and the output control signal is a low-level signal of 0.
[0097] If the cylinder pressure is greater than 10 bar and the exhaust temperature is less than 100°C, the cylinder pressure output signal is a low-level signal 0, and the exhaust temperature output signal is a high-level signal 1. The cylinder pressure and exhaust temperature signals are then input into the internal logic control circuit and the gate circuit, and the output control signal is a low-level signal 0.
[0098] If the cylinder pressure is less than 10 bar and the exhaust temperature is greater than 100°C, the cylinder pressure signal is output as a high-level signal 1, and the exhaust temperature signal is output as a low-level signal 0. The cylinder pressure and exhaust temperature signals are then input into the internal logic control circuit and the gate circuit, and the output control signal is a low-level signal 0.
[0099] Step S22: Or, according to the operating data and the second preset limit condition, obtaining a control signal sent by a logic control circuit in the automatic control fuel injection system.
[0100] Exemplarily, the second preset condition includes: the cylinder pressure value is less than a second preset cylinder pressure limit value, the exhaust temperature value is less than a second preset temperature limit value, and the cylinder pressure change rate is less than a first preset cylinder pressure change rate limit value.
[0101] If one of the operating data is not within its limit range, the output signal is a low-level signal 0. If the cylinder pressure value is not within its limit range, the output cylinder pressure signal is a low-level signal 0. Then, through the internal logic control circuit and gate circuit, the output control signal is a low-level signal 0.
[0102] Specifically, the control signal sent by the logic control circuit in the automatic control fuel injection system is obtained based on the operating data and the second preset limit conditions, including: if the cylinder pressure value is less than the second preset cylinder pressure limit, the exhaust temperature value is less than the second preset temperature limit, and the cylinder pressure change rate is less than the first preset cylinder pressure change rate limit, then the control signal sent by the logic control circuit in the automatic control fuel injection system is the first control signal; if the cylinder pressure value is greater than the second preset cylinder pressure limit, the exhaust temperature value is greater than the second preset temperature limit, or the cylinder pressure change rate is greater than the first preset cylinder pressure change rate limit, then the control signal sent by the logic control circuit in the automatic control fuel injection system is the second control signal.
[0103] Exemplarily, the second preset cylinder pressure limit is 60 bar, the second preset temperature limit is 650° C., and the second preset cylinder pressure change rate limit is 2.
[0104] If the cylinder pressure is less than 60 bar, the exhaust temperature is less than 650°C, and the cylinder pressure change rate is less than 2, the cylinder pressure output signal is a high-level signal of 1, the exhaust temperature output signal is a high-level signal of 1, and the cylinder pressure change rate output signal is a high-level signal of 1. The cylinder pressure signal, exhaust temperature signal, and cylinder pressure change rate signal are then input into the internal logic control circuit and the gate circuit, and the output control signal is a high-level signal of 1.
[0105] If the cylinder pressure is less than 60 bar, the exhaust temperature is less than 650°C, and the cylinder pressure change rate is greater than 2, the cylinder pressure output signal is a high-level signal of 1, the exhaust temperature output signal is a high-level signal of 1, and the cylinder pressure change rate output signal is a low-level signal of 0. The cylinder pressure signal, exhaust temperature signal, and cylinder pressure change rate signal are then input into the internal logic control circuit's AND gate circuit, and the output control signal is a low-level signal of 0.
[0106] If the cylinder pressure is less than 60 bar, the exhaust temperature is greater than 650°C, and the cylinder pressure change rate is greater than 2, the cylinder pressure output signal is a high-level signal of 1, the exhaust temperature output signal is a low-level signal of 0, and the cylinder pressure change rate output signal is a low-level signal of 0. The cylinder pressure signal, exhaust temperature signal, and cylinder pressure change rate signal are then input into the internal logic control circuit's AND gate circuit, and the output control signal is a low-level signal of 0.
[0107] If the cylinder pressure is greater than 60 bar, the exhaust temperature is greater than 650°C, and the cylinder pressure change rate is greater than 2, the cylinder pressure output signal is a low-level signal of 0, the exhaust temperature output signal is a low-level signal of 0, and the cylinder pressure change rate output signal is a low-level signal of 0. The cylinder pressure signal, exhaust temperature signal, and cylinder pressure change rate signal are then input into the internal logic control circuit and gate circuit, and the output control signal is a low-level signal of 0.
[0108] In this embodiment, the control signal sent by the logic control circuit in the automatic control fuel injection system is obtained based on the startup data and the first preset limit condition; or the control signal sent by the logic control circuit in the automatic control fuel injection system is obtained based on the operating data and the second preset limit condition. The method provided by this embodiment can enable the system to intelligently determine whether the automatic fuel injection mode needs to be turned off, thereby preventing the equipment from being damaged due to overload, overheating or uneven combustion.
[0109] In a second aspect, an embodiment of the present application also provides a control device for an optical single-cylinder machine.
[0110] In one embodiment, referring to Figure 3 , Figure 3 This is a functional module diagram of an embodiment of the control device of the optical single-cylinder machine of this application. Figure 3 As shown, the control device of the optical single-cylinder machine includes:
[0111] Acquisition module 01 is used to collect startup data or operating data of the optical single-cylinder engine in real time, wherein the startup data includes cylinder pressure value and exhaust temperature value, and the operating data includes cylinder pressure value, cylinder pressure change rate and exhaust temperature value;
[0112] An acquisition module 02 is configured to acquire a control signal sent by a logic control circuit in an automatic fuel injection system according to the startup data or the operation data;
[0113] The control module 03 is used to control the optical single-cylinder engine to be in the automatic fuel injection mode or not in the automatic fuel injection mode according to the control signal.
[0114] Furthermore, in one embodiment, the acquisition module 02 is further configured to:
[0115] acquiring a control signal sent by a logic control circuit in an automatic fuel injection control system according to the startup data and a first preset limit condition;
[0116] Alternatively, a control signal sent by a logic control circuit in an automatic fuel injection control system is obtained according to the operating data and the second preset limit condition.
[0117] Furthermore, in one embodiment, the acquisition module 02 is further configured to:
[0118] If the cylinder pressure value is less than the first preset cylinder pressure limit value, and the exhaust temperature value is less than the first preset temperature limit value, the obtained control signal sent by the logic control circuit in the automatic control injection system is the first control signal;
[0119] If the cylinder pressure value is less than the first preset cylinder pressure limit value, or the exhaust temperature value is less than the first preset temperature limit value, the acquired control signal sent by the logic control circuit in the automatic control injection system is the second control signal.
[0120] Furthermore, in one embodiment, the acquisition module 02 is further configured to:
[0121] If the cylinder pressure value is less than a second preset cylinder pressure limit value, the exhaust temperature value is less than a second preset temperature limit value, and the cylinder pressure change rate is less than a first preset cylinder pressure change rate limit value, then the obtained control signal sent by the logic control circuit in the automatic control injection system is the first control signal;
[0122] If the cylinder pressure value is greater than the second preset cylinder pressure limit, the exhaust temperature value is greater than the second preset temperature limit, or the cylinder pressure change rate is greater than the first preset cylinder pressure change rate limit, then the control signal sent by the logic control circuit in the automatic control injection system is the second control signal.
[0123] Furthermore, in one embodiment, the control module 03 is further configured to:
[0124] If the control signal is the first control signal, power is supplied to close the electromagnetic relay inside the optical single-cylinder engine, so that the optical single-cylinder engine is in an automatic fuel injection mode;
[0125] Alternatively, if the control signal is the second control signal, the power is cut off to disconnect the electromagnetic relay inside the optical single-cylinder engine, so that the optical single-cylinder engine is not in the automatic injection mode.
[0126] Furthermore, in one embodiment, the control module 03 is further configured to:
[0127] collecting second operating data, the second operating data including a cylinder pressure value, a cylinder pressure change rate, and an exhaust temperature value;
[0128] If the cylinder pressure value is greater than a second preset cylinder pressure limit value, the exhaust temperature value is greater than a second preset temperature limit value, or the cylinder pressure change rate is greater than a first preset cylinder pressure change rate limit value, then the obtained control signal sent by the logic control circuit in the automatic control injection system is the second control signal;
[0129] According to the second control signal, the automatic fuel injection mode is turned off.
[0130] Furthermore, in one embodiment, the control module 03 is further configured to:
[0131] Performing abnormality detection on the signal acquisition system of the optical single-cylinder engine;
[0132] If it is determined that the signal acquisition system of the optical single-cylinder engine is abnormal, the automatic fuel injection mode of the optical single-cylinder engine is directly turned off.
[0133] Among them, the functional implementation of each module in the control device of the above-mentioned optical single-cylinder engine corresponds to the various steps in the embodiment of the control method of the above-mentioned optical single-cylinder engine, and their functions and implementation processes will not be repeated here one by one.
[0134] On the third aspect, an embodiment of the present application provides a control device for an optical single-cylinder machine. The control device for the optical single-cylinder machine can be a personal computer (PC), a laptop computer, a server, or other device with a signal processing function.
[0135] Reference Figure 4 , Figure 4 Schematic diagram of the hardware structure of the control device of the optical single-cylinder engine involved in the embodiment of the present application. In the embodiment of the present application, the control device of the optical single-cylinder engine may include a processor, a memory, a communication interface and a communication bus.
[0136] The communication bus may be of any type and is used to interconnect the processor, memory, and communication interface.
[0137] Communication interfaces include input / output (I / O) interfaces, physical interfaces, and logical interfaces, which are used to interconnect components within the optical single-cylinder engine's control device, as well as interfaces used to interconnect the optical single-cylinder engine's control device with other devices (such as other computing devices or user devices). Physical interfaces can include Ethernet interfaces, fiber optic interfaces, ATM interfaces, etc.; user devices can include displays, keyboards, etc.
[0138] The memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), etc.
[0139] The processor may be a general-purpose processor, which may call the control program of the optical single-cylinder machine stored in the memory and execute the control method of the optical single-cylinder machine provided in the embodiment of the present application. For example, the general-purpose processor may be a central processing unit (CPU). The method executed when the control program of the optical single-cylinder machine is called may refer to the various embodiments of the control method of the optical single-cylinder machine of the present application, and will not be repeated here.
[0140] Those skilled in the art will understand that Figure 4 The hardware structure shown in the figure does not constitute a limitation to the present application and may include more or fewer components than shown in the figure, or a combination of certain components, or a different arrangement of components.
[0141] In a fourth aspect, an embodiment of the present application also provides a readable storage medium.
[0142] The control program of the optical single-cylinder engine is stored on the readable storage medium of the present application, wherein when the control program of the optical single-cylinder engine is executed by the processor, the steps of the control method of the optical single-cylinder engine are implemented.
[0143] Among them, the method implemented when the control program of the optical single-cylinder engine is executed can refer to the various embodiments of the control method of the optical single-cylinder engine of this application, and will not be repeated here.
[0144] It should be noted that the serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.
[0145] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for enabling a terminal device to execute the methods described in each embodiment of the present application.
[0146] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A control method for an optical single-cylinder machine, characterized in that: The control method of the optical single-cylinder machine includes: Real-time collection of startup data or first operating data of the optical single-cylinder engine, wherein the startup data includes a cylinder pressure value and an exhaust temperature value, and the first operating data includes a cylinder pressure value, a cylinder pressure change rate, and an exhaust temperature value; acquiring a control signal sent by a logic control circuit in an automatic fuel injection control system according to the startup data or the operation data; According to the control signal, the optical single-cylinder engine is controlled to be in the automatic fuel injection mode or not in the automatic fuel injection mode.
2. The control method of the optical single-cylinder machine according to claim 1, characterized in that: The control signal includes a first control signal and a second control signal; and according to the control signal, controlling the optical single-cylinder engine to be in an automatic fuel injection mode on state or in an automatic fuel injection mode off state includes: If the control signal is the first control signal, power is supplied to close the electromagnetic relay inside the optical single-cylinder engine, so that the optical single-cylinder engine is in an automatic fuel injection mode; Alternatively, if the control signal is the second control signal, the power is cut off to disconnect the electromagnetic relay inside the optical single-cylinder engine, so that the optical single-cylinder engine is not in the automatic injection mode.
3. The control method of the optical single-cylinder machine according to claim 1, characterized in that: The acquiring, according to the startup data or the operation data, a control signal sent by a logic control circuit in the automatic control fuel injection system comprises: acquiring a control signal sent by a logic control circuit in an automatic fuel injection control system according to the startup data and a first preset limit condition; Alternatively, a control signal sent by a logic control circuit in an automatic fuel injection control system is obtained according to the operating data and the second preset limit condition.
4. The control method of the optical single-cylinder machine according to claim 3, characterized in that: The acquiring, according to the startup data and the first preset limit condition, a control signal sent by a logic control circuit in the automatic control fuel injection system comprises: If the cylinder pressure value is less than the first preset cylinder pressure limit value, and the exhaust temperature value is less than the first preset temperature limit value, the obtained control signal sent by the logic control circuit in the automatic control injection system is the first control signal; If the cylinder pressure value is less than the first preset cylinder pressure limit value, or the exhaust temperature value is less than the first preset temperature limit value, the acquired control signal sent by the logic control circuit in the automatic control injection system is the second control signal.
5. The control method of the optical single-cylinder machine according to claim 3, characterized in that: The step of obtaining a control signal sent by a logic control circuit in an automatic fuel injection control system according to the operating data and the second preset limit condition includes: If the cylinder pressure value is less than a second preset cylinder pressure limit value, the exhaust temperature value is less than a second preset temperature limit value, and the cylinder pressure change rate is less than a first preset cylinder pressure change rate limit value, then the obtained control signal sent by the logic control circuit in the automatic control injection system is the first control signal; If the cylinder pressure value is greater than the second preset cylinder pressure limit, the exhaust temperature value is greater than the second preset temperature limit, or the cylinder pressure change rate is greater than the first preset cylinder pressure change rate limit, then the control signal sent by the logic control circuit in the automatic control injection system is the second control signal.
6. The control method of the optical single-cylinder machine according to claim 2, characterized in that: After the optical single-cylinder engine is in the automatic oil injection mode, the method further includes: collecting second operating data, the second operating data including a cylinder pressure value, a cylinder pressure change rate, and an exhaust temperature value; If the cylinder pressure value is greater than a second preset cylinder pressure limit value, the exhaust temperature value is greater than a second preset temperature limit value, or the cylinder pressure change rate is greater than a first preset cylinder pressure change rate limit value, then the obtained control signal sent by the logic control circuit in the automatic control injection system is the second control signal; According to the second control signal, the automatic fuel injection mode is turned off.
7. The control method of the optical single-cylinder machine according to claim 2, characterized in that: After the optical single-cylinder engine is in the automatic oil injection mode, the further step includes: Performing abnormality detection on the signal acquisition system of the optical single-cylinder engine; If it is determined that the signal acquisition system of the optical single-cylinder engine is abnormal, the automatic fuel injection mode of the optical single-cylinder engine is directly turned off.
8. A control device for an optical single-cylinder machine, characterized in that: The control device of the optical single-cylinder machine includes: An acquisition module, configured to acquire startup data or operating data of the optical single-cylinder engine in real time, wherein the startup data includes cylinder pressure value and exhaust temperature value, and the operating data includes cylinder pressure value, cylinder pressure change rate and exhaust temperature value; An acquisition module, configured to acquire a control signal sent by a logic control circuit in an automatic control fuel injection system according to the startup data or the operation data; The control module is used to control the optical single-cylinder engine to be in the automatic fuel injection mode or not in the automatic fuel injection mode according to the control signal.
9. A control device for an optical single-cylinder machine, characterized in that: The control device of the optical single-cylinder machine includes a processor, a memory, and a control program of the optical single-cylinder machine stored on the memory and executable by the processor, wherein when the control program of the optical single-cylinder machine is executed by the processor, the steps of the control method of the optical single-cylinder machine as described in any one of claims 1 to 7 are implemented.
10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a control program for the optical single-cylinder engine, wherein when the control program for the optical single-cylinder engine is executed by the processor, the steps of the control method for the optical single-cylinder engine according to any one of claims 1 to 7 are implemented.