Engine surge control method and device, electronic equipment and storage medium

Abstract

The invention discloses an engine surge control method and device, electronic equipment and a storage medium. The engine surge control method comprises the steps that the current working state of the supercharger is an enabling state, the average value of absolute values of supercharger outlet pressure band-pass filtering results is compared with a surge threshold value, and whether surge happens to the supercharger or not is judged; the driving delay time of the current anti-surge valve is recognized, predicted values of the key characteristic quantity after the driving delay time of the current anti-surge valve are predicted according to the current engine working condition parameters, and the predicted values comprise a supercharger pressure ratio predicted value and an air inlet flow predicted value; and the working state of the current anti-surge valve is an enabling state, and whether the current anti-surge valve is opened or not is comprehensively judged according to the pressure ratio predicted value of the supercharger, the difference value between the rear pressure of the supercharger and the pressure of the intake manifold and the opening degree of an accelerator pedal. The anti-surge valve is controlled to be opened and closed at a proper time, so that surge of the supercharger is avoided.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of engine air path control, and in particular to an engine surge control method, device, electronic device, and storage medium. Background Art

[0002] As carbon emission regulations become increasingly stringent, to maximize the potential of internal combustion engines, more and more manufacturers are using turbochargers with higher boost capabilities. This significantly increases the pressure ratio before and after the turbocharger, further increasing the risk of surge. Supercharger surge can damage components such as the supercharger blade bearing, resulting in a decrease in engine power output and fuel economy. It can also cause abnormal engine noise and vibration, causing discomfort to the driver. Therefore, how to control the corresponding components to avoid surge and reduce its impact on engine energy consumption, noise, vibration, and harshness has become a very challenging task.

[0003] Current engine surge control methods primarily rely on pressure and temperature sensors upstream and downstream of the supercharger. However, if these sensors are damaged or not equipped on the engine, these methods are essentially ineffective. They also fail to consider the impact of the delay characteristics of surge control components on surge control. They also fail to consider the impact of changes in supercharger surge characteristics due to component aging, manufacturing errors, and other factors on surge control. In summary, the main problem with existing engine surge control methods is that they cannot control the opening and closing of the anti-surge valve at the appropriate time, which can easily cause the supercharger to surge. Summary of the Invention

[0004] The present invention provides an engine surge control method, device, electronic equipment and storage medium, which prevent a supercharger from surging by controlling an anti-surge valve to open and close at an appropriate time.

[0005] According to one aspect of the present invention, an engine surge control method is provided, the engine surge control method comprising:

[0006] Based on the configuration and effective status of the sensors in the engine and the effective status of the anti-surge valve, it is comprehensively determined whether the current working status of the supercharger and the anti-surge valve is in the enabled state;

[0007] The current working state of the supercharger is an enabled state, comparing the average absolute value of the supercharger outlet pressure bandpass filtering result with the surge threshold value, and determining whether the supercharger surge occurs;

[0008] Identifying a current anti-surge valve actuation delay time, and predicting, based on current engine operating parameters, predicted values of key characteristic quantities after the current anti-surge valve actuation delay time, the predicted values including a predicted value of a supercharger pressure ratio and a predicted value of an intake air flow rate;

[0009] The current working state of the anti-surge valve is an enabled state, and whether the current anti-surge valve is open is comprehensively determined based on the predicted value of the supercharger pressure ratio, the difference between the pressure after the supercharger and the intake manifold pressure, and the accelerator pedal opening;

[0010] If a surge condition still occurs after the anti-surge valve is identified as being opened, the corresponding coefficient in the anti-surge valve characteristic correction table under the surge condition is updated; the actual delay time of the anti-surge valve is calculated based on the anti-surge valve driving time and the flow characteristic value measured by the flow sensor, and the corresponding coefficient in the corresponding delay time correction table is updated.

[0011] Optionally, the comprehensively determining whether the current working states of the supercharger and the anti-surge valve are in the enabled state based on the configuration and effectiveness state of the sensors in the engine and the effectiveness state of the anti-surge valve includes:

[0012] If the sensor of the current supercharger surge detection-related signal is valid, and the engine speed or the current supercharger speed is within a preset range, the current supercharger operating state is enabled; if not, the current supercharger operating state is disabled;

[0013] If the sensor of the signal involved in the current anti-surge valve enable control is valid and the current anti-surge valve is in a normal working state, the current working state of the anti-surge valve is enabled; if not, the current working state of the anti-surge valve is disabled.

[0014] Optionally, the predicting of the predicted value of the key characteristic quantity after the current anti-surge valve driving delay time according to the current engine operating condition parameters includes:

[0015] A basic value of a driving delay time of the anti-surge valve and a correction coefficient are obtained by mapping the current pressure at the inlet and outlet of the supercharger and the intake flow rate, and the driving delay time of the anti-surge valve is obtained by multiplying the basic value of the driving delay time and the correction coefficient;

[0016] According to the driving delay time of the anti-surge valve, the throttle opening, the current pressures at the inlet and outlet of the supercharger, and the intake flow rate, a supercharger pressure ratio prediction value and an intake flow rate prediction value are respectively mapped to obtain a supercharger pressure ratio prediction value and an intake flow rate prediction value.

[0017] Optionally, the current working state of the supercharger is an enabled state, and comparing the average absolute value of the supercharger outlet pressure bandpass filtering result with a surge threshold value, and determining whether the supercharger surge occurs includes:

[0018] Confirm whether the current operating condition of the turbocharger is in the surge high confidence window;

[0019] Filtering the outlet pressure of the supercharger through a bandpass filter to obtain a bandpass filtering result;

[0020] Accumulating absolute values of the band-pass filtering results when the supercharger is within a surge high confidence window and calculating an average value of the absolute values;

[0021] An average of the absolute values is compared with a pressure fluctuation threshold to determine whether surge occurs in the supercharger.

[0022] Optionally, the current working state of the anti-surge valve is an enabled state, and comprehensively determining whether the current anti-surge valve is open based on the predicted value of the supercharger pressure ratio, the difference between the supercharger post-pressure and the intake manifold pressure, and the accelerator pedal opening includes:

[0023] If the currently predicted supercharger pressure ratio prediction value is greater than the product of a value obtained by mapping the anti-surge protection characteristic table according to the intake air flow prediction value and a correction coefficient obtained by mapping the anti-surge characteristic correction table according to the current operating condition, the current anti-surge valve is opened;

[0024] If the difference between the pressure after the supercharger and the intake manifold pressure is greater than a pressure difference threshold value obtained by performing a specific mapping based on the current operating conditions, the current anti-surge valve is opened;

[0025] If the engine currently reaches a preset level of load dump, the current anti-surge valve opens.

[0026] Optionally, if it is identified that a surge condition still occurs after the anti-surge valve is opened, updating a corresponding coefficient in the anti-surge valve characteristic correction table under the surge condition includes:

[0027] If the current anti-surge valve is driven to open and it is detected that the supercharger is currently surging, the corresponding coefficient in the anti-surge valve characteristic correction table is reduced.

[0028] Optionally, the calculating the actual delay time of the anti-surge valve according to the anti-surge valve driving time and the flow characteristic value measured by the flow sensor, and updating the corresponding coefficient in the corresponding delay time correction table includes:

[0029] If it is detected that the anti-surge valve drive is opening, the actual delay time of the anti-surge valve is calculated based on the drive opening time point and the flow mutation time point measured by the subsequent flow sensor. If the difference between the actual delay time of the anti-surge valve and the theoretical delay time obtained by checking the delay time table between the current pressure difference at the inlet and outlet of the supercharger and the intake flow is greater than the threshold, the corresponding value in the delay time correction coefficient table is updated.

[0030] According to another aspect of the present invention, an engine surge control device is provided, the engine surge control device comprising: a surge control enabling module, a surge detection module, a key feature quantity prediction module, an anti-surge valve control module, and a surge characteristic learning module;

[0031] The surge control enabling module is used to comprehensively determine whether the surge detection module and the anti-surge valve control module are currently in an enabled state based on the configuration and effective state of the sensors in the engine and the effective state of the anti-surge valve;

[0032] The surge detection module is in an enabled state, and is used to compare an average of absolute values of band-pass filtered results of the supercharger outlet pressure with a surge threshold value, and determine whether the supercharger is surging;

[0033] The key characteristic quantity prediction module is used to identify the current anti-surge valve driving delay time and predict the predicted value of the key characteristic quantity after the current anti-surge valve driving delay time based on the current engine operating condition parameters, the predicted value including the supercharger pressure ratio predicted value and the intake air flow predicted value;

[0034] The anti-surge valve control module is in an enabled state, and is used to comprehensively determine whether the anti-surge valve is currently open based on the predicted value of the supercharger pressure ratio, the difference between the supercharger post-pressure and the intake manifold pressure, and the accelerator pedal opening;

[0035] The surge characteristic learning module is used to update the corresponding coefficient in the anti-surge valve characteristic correction table under the surge condition if it is identified that the surge condition still occurs after the anti-surge valve is opened; calculate the actual delay time of the anti-surge valve based on the anti-surge valve driving time and the flow characteristic value measured by the flow sensor, and update the corresponding coefficient in the corresponding delay time correction table.

[0036] According to another aspect of the present invention, an electronic device is provided, comprising:

[0037] one or more processors;

[0038] a memory for storing one or more programs;

[0039] When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any embodiment of the present invention.

[0040] According to another aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the method according to any embodiment of the present invention is implemented.

[0041] The technical solution of the embodiment of the present invention comprehensively determines whether the current working state of the supercharger and the anti-surge valve is in the enabled state according to the configuration and effective state of the sensors in the engine and the effective state of the anti-surge valve, thereby avoiding the occurrence of control method failure caused by damage to the relevant pressure and temperature sensors upstream and downstream of the supercharger or the non-configuration of the engine model; by identifying that the surge condition still occurs after the anti-surge valve is opened, the corresponding coefficient in the anti-surge valve characteristic correction table under the surge condition is updated; according to the anti-surge valve driving time and the flow sensor measured The flow characteristic value is used to calculate the actual delay time of the anti-surge valve, and the corresponding coefficient in the corresponding delay time correction table is updated, taking into account the impact of the delay lag characteristics of the surge control component on the surge control; taking into account the impact of changes in the supercharger surge characteristics caused by component aging and failure, manufacturing errors, etc. on the surge control, thereby controlling the anti-surge valve to switch at the appropriate time to avoid the supercharger from surging; when the supercharger operating condition is about to enter the surge area, the anti-surge valve is opened to quickly reduce the supercharger pressure ratio and effectively prevent the occurrence of supercharger surge. In summary, the present invention solves the problem in the prior art that the anti-surge valve cannot be controlled to switch at the appropriate time, which easily causes the supercharger to surge.

[0042] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 is a flow chart of an engine surge control method provided according to an embodiment of the present invention;

[0045] Figure 2 is a structural diagram of a four-cylinder hydrogen fuel engine provided according to an embodiment of the present invention;

[0046] Figure 3 2 is a schematic structural diagram of an engine surge control device provided according to an embodiment of the present invention;

[0047] Figure 4 is a schematic diagram of an implementation of a surge control enabling module provided according to an embodiment of the present invention;

[0048] Figure 5is a schematic diagram of an implementation of a key feature quantity prediction module provided according to an embodiment of the present invention;

[0049] Figure 6 is a schematic diagram of an implementation of a surge detection module provided according to an embodiment of the present invention;

[0050] Figure 7 is a schematic diagram of an anti-surge valve control module provided according to an embodiment of the present invention;

[0051] Figure 8 is a schematic diagram of a surge characteristic learning module provided according to an embodiment of the present invention;

[0052] Figure 9 is a structural diagram of an electronic device provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0053] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts should fall within the scope of protection of the present invention.

[0054] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof 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 necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0055] Figure 1 is a flow chart of an engine surge control method provided according to an embodiment of the present invention, with reference to Figure 1 The engine surge control method of this embodiment is applicable to various types of engines, including spark-ignition and compression-ignition engines, stoichiometric and lean-burn engines, and single-fuel and multi-fuel engines. This method can be executed by an engine surge control device provided by an embodiment of the present invention. This device can be implemented using software and / or hardware and can generally be integrated into an electronic device.

[0056] Figure 2 This is a structural diagram of a four-cylinder hydrogen fuel engine provided according to an embodiment of the present invention, with reference to Figure 2 The air in the environment passes through the temperature and pressure sensor 110 and the intake air flow sensor 120 upstream of the supercharger 010, and then passes through the supercharger 010, is cooled by the intake intercooler 015, flows through the pressure sensor 130 and the intake throttle valve 013 downstream of the supercharger 010, and is discharged from the engine through the exhaust intercooler 016 and the exhaust gas recirculation valve 014. After passing through the intake manifold sensor 140, it is mixed with the hydrogen injected by the hydrogen fuel nozzle 020 and enters the engine cylinder through the intake valve 019 during the intake stroke; at the same time, the ignition device 018 ignites before and after the piston reaches the top dead center during the engine compression stroke, ignites the mixture in the cylinder to perform work, thereby pushing the piston to drive the crankshaft to output torque; during the exhaust stroke, the gas in the cylinder enters the exhaust pipe through the exhaust valve 017, and its temperature can be measured by the exhaust temperature sensor 150. The gas in the exhaust pipe continues forward, with part of it entering the EGR duct (referring to the section of the duct from the exhaust temperature sensor 150 to the exhaust gas intercooler 016), and part of it continuing forward to push the turbine 011 and then continue forward. For the above-mentioned hydrogen fuel engine with intake port injection, under conditions such as rapid deceleration, the intake throttle 013 will close quickly, causing the ratio of the downstream pressure to the upstream pressure of the supercharger 010 to increase rapidly, and the intake flow rate to decrease rapidly, causing the supercharger 010 to enter the surge region, which is very likely to cause surge. To prevent this from happening, the anti-surge valve 012 can be opened when the supercharger 010 is about to enter the surge region, quickly reducing the pressure ratio of the supercharger 010. This can effectively prevent the occurrence of surge in the supercharger 010.

[0057] Continue to refer Figure 1 The engine surge control method specifically includes the following steps:

[0058] S110 , comprehensively determining whether the current working states of the supercharger and the anti-surge valve are in an enabled state based on the configuration and effective state of the sensors in the engine and the effective state of the anti-surge valve.

[0059] Specifically, based on the valid status of signals such as engine speed, supercharger speed (this variable can be directly measured or indirectly calculated based on other variables), supercharger inlet temperature, supercharger inlet pressure, supercharger outlet pressure, intake flow, whether the corresponding sensors are configured and the fault status, and the effective status of the anti-surge valve, it is comprehensively determined whether the surge detection function of the current supercharger and the control function of the anti-surge valve are enabled.

[0060] The above steps can confirm the configuration status of the corresponding sensors, remove the signals of the faulty sensors, and retain the signals of the normal sensors. This can avoid the occurrence of control method failure caused by damage to the relevant pressure and temperature sensors upstream and downstream of the supercharger or the model not being configured.

[0061] S120: The current working state of the supercharger is enabled. The average absolute value of the supercharger outlet pressure bandpass filtering result is compared with the surge threshold value to determine whether the supercharger surges.

[0062] Specifically, the supercharger outlet pressure within the surge high confidence window is passed through a bandpass filter, and the absolute value of the result is averaged. This average is then compared with the surge threshold to determine whether the supercharger is experiencing surge. The supercharger outlet pressure can generally be calculated based on the intake air intercooler pressure or directly sampled from a sensor.

[0063] S130: Identify the current anti-surge valve driving delay time, and predict key characteristic values after the current anti-surge valve driving delay time based on current engine operating parameters, the predicted values including the supercharger pressure ratio prediction value and the intake air flow prediction value.

[0064] Specifically, the current anti-surge valve driving delay time is calculated by multiplying the basic value of the delay time obtained by looking up the table based on the current supercharger inlet and outlet pressure and the intake standard volume flow rate, and the delay time correction coefficient obtained by looking up the table based on the operating conditions. The predicted values of key characteristic quantities after the driving delay time are predicted based on the current engine operating parameters, such as engine speed, intake flow rate, accelerator pedal opening, etc. The predicted values of the key characteristic quantities include the supercharger pressure ratio prediction value and the intake flow rate prediction value.

[0065] S140: The current working state of the anti-surge valve is enabled. Whether the current anti-surge valve is open is comprehensively determined based on the predicted value of the supercharger pressure ratio, the difference between the pressure after the supercharger and the intake manifold pressure, and the accelerator pedal opening.

[0066] Specifically, whether the current anti-surge valve drive is open is comprehensively determined based on the predicted value of the supercharger pressure ratio, the predicted value of the intake flow, the difference between the pressure after the supercharger and the intake manifold pressure or the difference between the manifold pressure and the pressure after the supercharger, the accelerator pedal opening, and the enabling status of the anti-surge valve.

[0067] S150. If a surge condition still occurs after the anti-surge valve is identified as open, the corresponding coefficient in the anti-surge valve characteristic correction table under the surge condition is updated; the actual delay time of the anti-surge valve is calculated based on the anti-surge valve driving time and the flow characteristic value measured by the flow sensor, and the corresponding coefficient in the corresponding delay time correction table is updated.

[0068] Specifically, if it is detected that surge still occurs after the anti-surge valve is driven to open, the corresponding value in the anti-surge valve characteristic correction table of the above working condition is updated; secondly, the actual delay time of the anti-surge valve is calculated based on the anti-surge valve driving time and the flow characteristic value measured by the flow sensor, and the corresponding coefficient in the corresponding delay time correction table is updated.

[0069] The above steps take into account the impact of the delay hysteresis characteristics of the surge control components on the surge control; and take into account the impact of changes in the surge characteristics of the supercharger due to component aging failure, manufacturing errors, etc. on the surge control, thereby controlling the anti-surge valve to open and close at the appropriate time to avoid supercharger surge.

[0070] The technical solution of the embodiment of the present invention comprehensively determines whether the current working state of the supercharger and the anti-surge valve is in the enabled state according to the configuration and effective state of the sensors in the engine and the effective state of the anti-surge valve, thereby avoiding the occurrence of control method failure caused by damage to the relevant pressure and temperature sensors upstream and downstream of the supercharger or the non-configuration of the engine model; by identifying that the surge condition still occurs after the anti-surge valve is opened, the corresponding coefficient in the anti-surge valve characteristic correction table under the surge condition is updated; according to the anti-surge valve driving time and the flow sensor measured The flow characteristic value is used to calculate the actual delay time of the anti-surge valve, and the corresponding coefficient in the corresponding delay time correction table is updated, taking into account the impact of the delay lag characteristics of the surge control component on the surge control; taking into account the impact of changes in the supercharger surge characteristics caused by component aging and failure, manufacturing errors, etc. on the surge control, thereby controlling the anti-surge valve to switch at the appropriate time to avoid the supercharger from surging; when the supercharger operating condition is about to enter the surge area, the anti-surge valve is opened to quickly reduce the supercharger pressure ratio and effectively prevent the occurrence of supercharger surge. In summary, the present invention solves the problem in the prior art that the anti-surge valve cannot be controlled to switch at the appropriate time, which easily causes the supercharger to surge.

[0071] Optionally, based on the configuration and effectiveness status of sensors in the engine and the effectiveness status of the anti-surge valve, comprehensively determining whether the current working status of the supercharger and the anti-surge valve is in the enabled state includes:

[0072] If the sensor of the current supercharger surge detection-related signal is valid, and the engine speed or the current supercharger speed is within the preset range, the current supercharger working state is enabled; otherwise, the current supercharger working state is disabled;

[0073] If the sensor of the signal involved in the current anti-surge valve enable control is valid and the current anti-surge valve is in normal working state, the current working state of the anti-surge valve is enabled; if not, the current working state of the anti-surge valve is disabled.

[0074] Specifically, if the intake air flow sensor is valid, the engine speed is greater than the speed threshold, or the current supercharger speed is within a reasonable range, the current supercharger surge detection function is enabled; otherwise, it is disabled. If the current supercharger surge detection function is enabled, the accelerator pedal position sensor signal is valid, the pressure sensor downstream of the supercharger is valid, the intake manifold sensor signal is valid, and the current anti-surge valve is in normal operation, the current anti-surge valve control function is enabled; otherwise, it is disabled.

[0075] Optionally, predicting the predicted value of the key characteristic quantity after the current anti-surge valve driving delay time according to the current engine operating condition parameters includes:

[0076] The basic value of the anti-surge valve driving delay time and the correction coefficient are obtained by mapping the current supercharger inlet and outlet pressures and the intake air flow respectively, and the driving delay time of the anti-surge valve is obtained by multiplying the basic value of the driving delay time and the correction coefficient;

[0077] According to the anti-surge valve driving delay time, throttle opening, current supercharger inlet and outlet pressures, and intake flow rate, the supercharger pressure ratio prediction value and intake flow rate prediction value are mapped respectively.

[0078] Specifically, a basic delay value is obtained by looking up the table according to the supercharger inlet pressure, the supercharger outlet pressure, and the standard volume flow of the intake air, and a correction coefficient is obtained by looking up the table according to the supercharger inlet pressure and the supercharger outlet pressure. The above basic delay value is multiplied by the delay correction coefficient to obtain the driving delay time of the anti-surge valve; according to the driving delay time of the anti-surge valve, the accelerator pedal opening, the intake flow rate, the supercharger inlet pressure, and the supercharger outlet pressure, the supercharger pressure ratio prediction value is obtained by long short-term memory network (LSTM) mapping, and the intake flow prediction value is obtained by long short-term memory network (LSTM) mapping.

[0079] Optionally, the current working state of the supercharger is an enabled state, and comparing the average absolute value of the supercharger outlet pressure bandpass filtering result with the surge threshold value, and determining whether the supercharger surge occurs includes:

[0080] Confirm whether the current operating condition of the turbocharger is in the surge high confidence window;

[0081] The outlet pressure of the supercharger is filtered by a band-pass filter to obtain a band-pass filtering result; the absolute values of the band-pass filtering results of the supercharger in the surge high confidence window are accumulated and the average value of the absolute values is calculated;

[0082] The average of the absolute values is compared with the pressure fluctuation threshold to determine whether the supercharger surge occurs.

[0083] Specifically, the supercharger's operation is premised on the supercharger being in the enabled state. First, the system checks whether the supercharger's current operating condition is within the surge high-confidence window. This determination is based on the current supercharger's pressure ratio being greater than the product of a pressure ratio threshold value mapped to a surge valve characteristic table based on the current intake standard volume flow rate, multiplied by a correction factor mapped to an anti-surge characteristic correction table based on the current operating conditions. Secondly, the supercharger outlet pressure is filtered using a bandpass filter. Thirdly, the absolute values of the bandpass filtering results within the surge high-confidence window are accumulated and averaged. Finally, this average value is compared with a pressure fluctuation threshold to determine whether the supercharger is experiencing surge.

[0084] Optionally, the current working state of the anti-surge valve is an enabled state, and comprehensively determining whether the current anti-surge valve is open based on the predicted value of the supercharger pressure ratio, the difference between the supercharger post-pressure and the intake manifold pressure, and the accelerator pedal opening includes:

[0085] If the currently predicted supercharger pressure ratio prediction value is greater than the product of the value obtained by mapping the anti-surge protection characteristic table according to the intake flow prediction value and the correction coefficient obtained by mapping the anti-surge characteristic correction table according to the current operating conditions, the current anti-surge valve is opened;

[0086] If the difference between the pressure after the supercharger and the intake manifold pressure is greater than the pressure difference threshold obtained by specific mapping based on the current operating conditions, the current anti-surge valve opens;

[0087] If the engine currently reaches a preset level of load dump, the current anti-surge valve opens.

[0088] Specifically, the anti-surge valve operates only when its enable state is enabled. First, there are three main methods for determining the conditions for opening the anti-surge valve. The specific methods used are determined based on the engine sensor configuration and sensor validity status. The anti-surge valve opens if any one of these conditions is met. First, if the currently predicted supercharger pressure ratio is greater than the product of the value mapped from the anti-surge protection characteristic table based on the intake flow prediction value and the correction factor mapped from the surge characteristic correction table based on the current operating conditions; second, if the difference between the supercharger post-pressure and intake manifold pressure exceeds the pressure differential threshold determined by a specific mapping based on the current operating conditions; and third, if the engine currently experiences a certain degree of load drop.

[0089] Optionally, if a surge condition still occurs after the anti-surge valve is identified as open, the corresponding coefficients in the anti-surge valve characteristic correction table under the surge condition are updated to include:

[0090] If the current anti-surge valve is driven to open and it is detected that the supercharger is currently surging, the corresponding coefficient in the anti-surge valve characteristic correction table is reduced.

[0091] Optionally, calculating the actual delay time of the anti-surge valve according to the anti-surge valve driving time and the flow characteristic value measured by the flow sensor, and updating the corresponding coefficient in the corresponding delay time correction table includes:

[0092] If it is detected that the anti-surge valve drive is opening, the actual delay time of the anti-surge valve is calculated based on the drive opening time point and the flow mutation time point measured by the subsequent flow sensor. If the difference between the actual delay time of the anti-surge valve and the theoretical delay time obtained by looking up the delay time table between the current pressure difference at the inlet and outlet of the supercharger and the intake flow is greater than the threshold, the corresponding value in the delay time correction coefficient table is updated.

[0093] Figure 3 is a schematic structural diagram of an engine surge control device provided according to an embodiment of the present invention, with reference to Figure 3 , the device can be configured in an electronic device, the engine surge control device includes: a surge control enabling module 81, a surge detection module 82, a key feature quantity prediction module 83, an anti-surge valve control module 84 and a surge characteristic learning module 85;

[0094] The surge control enabling module 81 is used to comprehensively determine whether the current surge detection module 82 and the anti-surge valve control module 84 are in the enabled state according to the configuration and effective state of the sensors in the engine and the effective state of the anti-surge valve;

[0095] The surge detection module 82 is in an enabled state and is used to compare the average absolute value of the supercharger outlet pressure bandpass filtering result with the surge threshold value and determine whether the supercharger is surging;

[0096] The key characteristic quantity prediction module 83 is used to identify the current anti-surge valve driving delay time and predict the key characteristic quantity predicted value after the current anti-surge valve driving delay time based on the current engine operating parameters. The predicted value includes the supercharger pressure ratio prediction value and the intake air flow prediction value.

[0097] The anti-surge valve control module 84 is in an enabled state. The anti-surge valve control module 84 is used to comprehensively determine whether the current anti-surge valve is open based on the predicted value of the supercharger pressure ratio, the difference between the supercharger pressure and the intake manifold pressure, and the accelerator pedal opening;

[0098] The surge characteristic learning module 85 is used to update the corresponding coefficient in the anti-surge valve characteristic correction table under the surge condition if it is identified that the surge condition still occurs after the anti-surge valve is opened; calculate the actual delay time of the anti-surge valve based on the anti-surge valve driving time and the flow characteristic value measured by the flow sensor, and update the corresponding coefficient in the corresponding delay time correction table.

[0099] The above-mentioned engine surge control device can execute the engine surge control method provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the engine surge control method.

[0100] Continue to refer Figure 3 Optionally, the surge control enabling module 81 is used to comprehensively determine whether the current surge detection module 82 and the anti-surge valve control module 84 are in the enabled state according to the configuration and effective state of the sensors in the engine and the effective state of the anti-surge valve. The determination includes: if the sensor of the signal involved in the current surge detection module 82 is effective, and the engine speed or the current supercharger speed is within a preset range, then the current surge detection module 82 is enabled; if not, then the current surge detection module 82 is not enabled; if the sensor of the signal involved in the current anti-surge valve control module 84 is effective, and the current anti-surge valve is in a normal working state, then the current anti-surge valve control module 84 is enabled; if not, then the current anti-surge valve control module 84 is not enabled.

[0101] Continue to refer Figure 3 Optionally, the surge detection module 82 is in an enabled state. The surge detection module 82 is configured to compare an average value of the absolute value of the band-pass filtering result of the supercharger outlet pressure with a surge threshold value, and determine whether the supercharger has experienced surge, including: confirming whether the current operating condition of the supercharger is within a surge high confidence window; filtering the supercharger outlet pressure through a band-pass filter to obtain a band-pass filtering result; accumulating the absolute values of the band-pass filtering results of the supercharger within the surge high confidence window and calculating the average value of the absolute values; and comparing the average value of the absolute values with a pressure fluctuation threshold value to determine whether the supercharger has experienced surge.

[0102] Continue to refer Figure 3 Optionally, the key feature quantity prediction module 83 is used to identify the current driving delay time of the anti-surge valve, and predict the predicted value of the key feature quantity after the current driving delay time of the anti-surge valve according to the current engine operating parameters, including: mapping the current supercharger outlet and inlet pressures and the intake flow to obtain the basic value and correction coefficient of the driving delay time of the anti-surge valve, and multiplying the basic value of the driving delay time and the correction coefficient to obtain the driving delay time of the anti-surge valve; mapping the anti-surge valve driving delay time, throttle opening, the current supercharger outlet and inlet pressures, and the intake flow to obtain the supercharger pressure ratio prediction value and the intake flow prediction value.

[0103] Continue to refer Figure 3Optionally, the anti-surge valve control module 84 is in an enabled state, and the anti-surge valve control module 84 is used to comprehensively determine whether the current anti-surge valve is open based on the supercharger pressure ratio prediction value, the difference between the supercharger post-pressure and the intake manifold pressure, and the accelerator pedal opening, including: if the current predicted supercharger pressure ratio prediction value is greater than the product of the value mapped to the anti-surge protection characteristic table according to the intake flow prediction value and the correction coefficient mapped to the anti-surge characteristic correction table according to the current operating condition, then the current anti-surge valve is opened; if the difference between the supercharger post-pressure and the intake manifold pressure is greater than the pressure difference threshold obtained by specific mapping according to the current operating condition, then the current anti-surge valve is opened; if the engine currently reaches a preset degree of load drop, then the current anti-surge valve is opened.

[0104] Continue to refer Figure 3 Optionally, the surge characteristic learning module 85 is configured to update a corresponding coefficient in the anti-surge valve characteristic correction table under the surge condition if the surge condition still occurs after the anti-surge valve is opened, including: if the anti-surge valve is currently driven to be open and surge is detected in the current supercharger, reducing the corresponding coefficient in the anti-surge valve characteristic correction table;

[0105] Continue to refer Figure 3 Optionally, the surge characteristic learning module 85 is used to calculate the actual delay time of the anti-surge valve based on the anti-surge valve driving time and the flow characteristic value measured by the flow sensor, and update the corresponding coefficient in the corresponding delay time correction table, including: if it is detected that the anti-surge valve is driven to open, then the actual delay time of the anti-surge valve is calculated based on the driving opening time point and the subsequent flow mutation time point measured by the flow sensor; if the difference between the actual delay time of the anti-surge valve and the theoretical delay time obtained by looking up the delay time table between the pressure difference at the inlet and outlet of the current supercharger and the intake flow is greater than a threshold, then the corresponding value in the delay time correction coefficient table is updated.

[0106] Figure 4 Schematic diagram of a surge control enabling module implementation method provided according to an embodiment of the present invention, reference Figure 4The calculation logic of the surge detection module enable flag 301 is that the following conditions are met at the same time, and through an open delay module, the conditions must be met as follows: 1) The RS trigger module output is 1, its set condition is that the engine speed 201 is greater than the speed threshold 401, and its reset condition is that the engine speed 201 is less than the speed threshold 402; 2) The intake flow signal valid flag 216 is 1; 3) The engine speed valid flag 217 is 1; 4) The turbocharger inlet temperature valid flag 218 or the ambient temperature valid flag 219 is 1; 5 ) The effective flag bit 221 of the supercharger inlet pressure or the effective flag bit 222 of the ambient pressure is 1; 6) The effective flag bit 224 of the intake intercooler pressure is 1; The calculation logic of the anti-surge valve control module enable flag bit 302 is that the following conditions are met at the same time, and through an opening delay module, the conditions that must be met are as follows: 1) The surge detection module enable flag bit 301 or the accelerator pedal opening effective flag bit 225 or the difference between the supercharger post-pressure and the intake manifold pressure effective flag bit 226 is 1; 2) The anti-surge valve normal working flag bit 215 is 1.

[0107] Figure 5 is a schematic diagram of an implementation of a key feature quantity prediction module provided according to an embodiment of the present invention, with reference to Figure 5 The calculation process of the driving delay time 208 of the anti-surge valve is as follows: according to the supercharger inlet pressure 204, the supercharger outlet pressure 205, and the intake standard volume flow rate 228, a delay basic value 229 is obtained by looking up the table 405; according to the supercharger inlet pressure 204 and the supercharger outlet pressure 205, a correction coefficient 230 is obtained by looking up the table 406; the above delay basic value 229 is multiplied by the delay correction coefficient 230 to obtain the driving delay time of the anti-surge valve; according to the driving delay time 208 of the anti-surge valve, the accelerator pedal opening 211, the intake flow rate 206, the supercharger inlet pressure 204, and the supercharger outlet pressure 205, a supercharger pressure ratio prediction value 209 is obtained by mapping through the long short-term memory network (LSTM) 407, and an intake flow prediction value 210 is obtained by mapping through the long short-term memory network (LSTM) 408; the intake standard volume flow rate 228 can be corrected by the intake flow rate 206 according to pressure and temperature to obtain the volume flow rate under standard temperature and pressure conditions.

[0108] Figure 6 is a schematic diagram of an implementation of a surge detection module according to an embodiment of the present invention, with reference to Figure 6 and Figure 4The surge detection module operates under the following conditions: 1) The supercharger outlet pressure 205 is divided by the supercharger inlet pressure 204 to obtain the supercharger pressure ratio; 2) The values obtained by looking up the surge valve characteristic table 409 and the surge valve characteristic correction table 410 based on the supercharger speed 202 and the intake standard volume flow rate 228 are multiplied together to obtain a detection threshold; 3) When the supercharger pressure ratio exceeds the above detection threshold, an absolute value average calculation module is triggered. When the above conditions are not met and the time threshold 412 has passed, the average calculation module stops calculating and outputs the result; 4) The input of the average calculation module is the result obtained by passing the supercharger outlet pressure 205 through the FIR bandpass filter 411; 5) When the above average output value exceeds the surge detection pressure fluctuation threshold 413, the supercharger is deemed to be surging, and the surge occurrence flag 303 is set. The surge detection pressure fluctuation threshold 413 can be a fixed value or can be obtained by looking up the table based on the operating conditions.

[0109] Figure 7 is a schematic diagram of an anti-surge valve control module provided according to an embodiment of the present invention, with reference to Figure 7 and Figure 4 The prerequisite for the operation of the anti-surge valve control module is that the anti-surge valve control module enable flag 302 is 1. If any of the following conditions are met, the anti-surge valve can be opened: 1) The predicted pressure ratio surge control enable 414 is 1, and the supercharger pressure ratio prediction value 209 is greater than the product of the values obtained by looking up the tables 419 and 410 according to the supercharger speed prediction value 231 and the intake flow prediction value 210; 2) The pressure difference surge control enable 415 is 1, and the difference between the intake manifold pressure and the supercharger after-pressure is greater than 2) Difference 212 is greater than a threshold value obtained by looking up table 418 based on supercharger speed 202 and intake standard volume flow rate 228; 3) Load dump surge control enable 416 is 1, and the result of a recurrent neural network (RNN) based on engine speed 201, supercharger speed 202, intake flow rate 206, and accelerator pedal opening 211 is 1; the surge control enable flags 414, 415, and 416 can be determined based on the engine model sensor configuration and sensor validity status. It should be noted that: Figure 7 The predicted value of the turbocharger speed 231 can also be calculated based on Figure 5 The supercharger pressure ratio prediction value 209 and the intake air flow prediction value 210 are obtained by the calculation method of FIG.

[0110] Figure 8 is a schematic diagram of a surge characteristic learning module provided according to an embodiment of the present invention, with reference to Figure 8The specific calculation process is as follows: 1) If the surge occurrence flag 303 and the anti-surge valve opening command 304 are both 1, the corresponding area value in table 410 is multiplied by or subtracted by a step value less than 1 based on the current supercharger speed 202 and the intake standard volume flow rate 228. 2) Based on the anti-surge valve opening command 304, the supercharger speed 202, the supercharger inlet pressure 204, and the intake flow rate 206, a flow anomaly detection module is used to obtain the abnormal flag and the actual delay time value. When the abnormal flag is 1 and the difference between the actual delay time value and the anti-surge valve driving delay time basic value 229 is greater than a threshold, the result obtained by dividing the actual delay time value by the anti-surge valve driving delay time basic value 229 is updated to the value of the corresponding area in table 406 determined based on the supercharger inlet pressure 204 and the supercharger outlet pressure 205.

[0111] Figure 9 A schematic diagram of the structure of an electronic device 1 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0112] like Figure 9 As shown, electronic device 1 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to at least one processor 11. The memory stores a computer program that can be executed by the at least one processor, and processor 11 can perform various appropriate actions and processes according to the computer program stored in read-only memory (ROM) 12 or the computer program loaded from storage unit 18 into random access memory (RAM) 13. Various programs and data required for the operation of electronic device 1 can also be stored in RAM 13. Processor 11, ROM 12, and RAM 13 are connected to each other via bus 14. Input / output (I / O) interface 15 is also connected to bus 14.

[0113] Multiple components in electronic device 1 are connected to I / O interface 15, including an input unit 16, such as a keyboard, mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, optical disk, etc.; and a communication unit 19, such as a network card, modem, wireless communication transceiver, etc. Communication unit 19 allows electronic device 1 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0114] The processor 11 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any other suitable processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the engine surge control method.

[0115] In some embodiments, the engine surge control method may be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed onto the electronic device 1 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the engine surge control method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the engine surge control method in any other suitable manner (e.g., via firmware).

[0116] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0117] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0118] In the context of the present invention, computer-readable storage media can be tangible media that can contain or store a computer program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Computer-readable storage media can include but are not limited to electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, computer-readable storage media can be machine-readable signal media. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0119] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0120] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0121] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0122] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0123] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. An engine surge control method, characterized in that: include: Based on the configuration and effective status of the sensors in the engine and the effective status of the anti-surge valve, it is comprehensively determined whether the current working status of the supercharger and the anti-surge valve is in the enabled state; The current working state of the supercharger is an enabled state, comparing the average absolute value of the supercharger outlet pressure bandpass filtering result with the surge threshold value, and determining whether the supercharger surge occurs; Identifying a current anti-surge valve actuation delay time, and predicting, based on current engine operating parameters, predicted values of key characteristic quantities after the current anti-surge valve actuation delay time, the predicted values including a predicted value of a supercharger pressure ratio and a predicted value of an intake air flow rate; The current working state of the anti-surge valve is an enabled state, and whether the current anti-surge valve is open is comprehensively determined based on the predicted value of the supercharger pressure ratio, the difference between the pressure after the supercharger and the intake manifold pressure, and the accelerator pedal opening; If a surge condition still occurs after the anti-surge valve is identified as being opened, the corresponding coefficient in the anti-surge valve characteristic correction table under the surge condition is updated; the actual delay time of the anti-surge valve is calculated based on the anti-surge valve driving time and the flow characteristic value measured by the flow sensor, and the corresponding coefficient in the corresponding delay time correction table is updated.

2. The method according to claim 1, characterized in that The comprehensive determination of whether the current working states of the supercharger and the anti-surge valve are in the enabled state based on the configuration and effective state of the sensors in the engine and the effective state of the anti-surge valve includes: If the sensor of the current supercharger surge detection-related signal is valid, and the engine speed or the current supercharger speed is within a preset range, the current supercharger operating state is enabled; if not, the current supercharger operating state is disabled; If the sensor of the signal involved in the current anti-surge valve enable control is valid and the current anti-surge valve is in a normal working state, the current working state of the anti-surge valve is enabled; if not, the current working state of the anti-surge valve is disabled.

3. The method according to claim 1, characterized in that The predicted value of the key characteristic quantity predicted based on the current engine operating condition parameters after the current anti-surge valve driving delay time includes: A basic value of a driving delay time of the anti-surge valve and a correction coefficient are obtained by mapping the current pressure at the inlet and outlet of the supercharger and the intake flow rate, and the driving delay time of the anti-surge valve is obtained by multiplying the basic value of the driving delay time and the correction coefficient; According to the driving delay time of the anti-surge valve, the throttle opening, the current pressures at the inlet and outlet of the supercharger, and the intake flow rate, a supercharger pressure ratio prediction value and an intake flow rate prediction value are respectively mapped to obtain a supercharger pressure ratio prediction value and an intake flow rate prediction value.

4. The method according to claim 1, wherein The current working state of the supercharger is an enabled state, and the average absolute value of the supercharger outlet pressure bandpass filtering result is compared with the surge threshold value, and determining whether the supercharger surge occurs includes: Confirm whether the current operating condition of the turbocharger is in the surge high confidence window; Filtering the outlet pressure of the supercharger through a bandpass filter to obtain a bandpass filtering result; Accumulating absolute values of the band-pass filtering results when the supercharger is within a surge high confidence window and calculating an average value of the absolute values; An average of the absolute values is compared with a pressure fluctuation threshold to determine whether surge occurs in the supercharger.

5. The method according to claim 1, wherein The current working state of the anti-surge valve is an enabled state, and comprehensively determining whether the current anti-surge valve is open based on the predicted value of the supercharger pressure ratio, the difference between the supercharger post-pressure and the intake manifold pressure, and the accelerator pedal opening includes: If the currently predicted supercharger pressure ratio prediction value is greater than the product of a value obtained by mapping the anti-surge protection characteristic table according to the intake air flow prediction value and a correction coefficient obtained by mapping the anti-surge characteristic correction table according to the current operating condition, the current anti-surge valve is opened; If the difference between the pressure after the supercharger and the intake manifold pressure is greater than a pressure difference threshold value obtained by performing a specific mapping based on the current operating conditions, the current anti-surge valve is opened; If the engine currently reaches a preset level of load dump, the current anti-surge valve opens.

6. The method according to claim 1, characterized in that If the surge condition still occurs after the anti-surge valve is opened, updating the corresponding coefficients in the anti-surge valve characteristic correction table under the surge condition includes: If the current anti-surge valve is driven to open and it is detected that the supercharger is currently surging, the corresponding coefficient in the anti-surge valve characteristic correction table is reduced.

7. The method according to claim 1, characterized in that The method of calculating the actual delay time of the anti-surge valve according to the anti-surge valve driving time and the flow characteristic value measured by the flow sensor, and updating the corresponding coefficient in the corresponding delay time correction table includes: If it is detected that the anti-surge valve drive is opening, the actual delay time of the anti-surge valve is calculated based on the drive opening time point and the flow mutation time point measured by the subsequent flow sensor. If the difference between the actual delay time of the anti-surge valve and the theoretical delay time obtained by checking the delay time table between the current pressure difference at the inlet and outlet of the supercharger and the intake flow is greater than the threshold, the corresponding value in the delay time correction coefficient table is updated.

8. An engine surge control device, characterized in that: include: Surge control enabling module, surge detection module, key characteristic quantity prediction module, anti-surge valve control module and surge characteristic learning module; The surge control enabling module is used to comprehensively determine whether the surge detection module and the anti-surge valve control module are currently in an enabled state based on the configuration and effective state of the sensors in the engine and the effective state of the anti-surge valve; The surge detection module is in an enabled state, and is used to compare an average of absolute values of band-pass filtered results of the supercharger outlet pressure with a surge threshold value, and determine whether the supercharger is surging; The key characteristic quantity prediction module is used to identify the current anti-surge valve driving delay time and predict the predicted value of the key characteristic quantity after the current anti-surge valve driving delay time based on the current engine operating condition parameters, the predicted value including the supercharger pressure ratio predicted value and the intake air flow predicted value; The anti-surge valve control module is in an enabled state, and is used to comprehensively determine whether the anti-surge valve is currently open based on the predicted value of the supercharger pressure ratio, the difference between the supercharger post-pressure and the intake manifold pressure, and the accelerator pedal opening; The surge characteristic learning module is used to update the corresponding coefficient in the anti-surge valve characteristic correction table under the surge condition if it is identified that the surge condition still occurs after the anti-surge valve is opened; calculate the actual delay time of the anti-surge valve based on the anti-surge valve driving time and the flow characteristic value measured by the flow sensor, and update the corresponding coefficient in the corresponding delay time correction table.

9. An electronic device, characterized in that: include: one or more processors; a memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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