70 results about "Fuel quality" patented technology

An aircraft-based fuel quality monitoring and alerting system is disclosed herein. The aircraft-based fuel quality monitoring and alerting system can include a first sensor configured to output a signal associated with contamination of fuel entering an aircraft through a first fuel inlet. The system can further include a processor configured to determine a first contamination level of the fuel based on the signal and an alerting system configured to deliver an alert if the first contamination level is outside a predetermined range.

The embodiment of the invention provides an engine control method and device, a vehicle and a storage medium, and the method comprises the steps that the running state of the vehicle is monitored, a state monitoring result is obtained, and the state monitoring result is used for representing whether the knocking phenomenon occurs in the current running state of the vehicle or not; in response to the state monitoring result that the knocking phenomenon occurs in the current running state of the vehicle, the fuel quality of fuel currently used by the vehicle, the current running parameters and running state parameters of an engine and a first control parameter are obtained, the fuel quality is used for reflecting the combustion capacity of the fuel in multiple dimensions, and the fuel quality is used for reflecting the combustion capacity of the fuel in multiple dimensions; the running state parameters are used for reflecting running conditions of the engine; adjusting a first control parameter currently used by the engine based on the fuel oil quality and the operation parameter operation state parameter to obtain a target control parameter; and controlling the engine to operate based on the target control parameter. The technical problem that in the related technology, the stability of controlling operation of the engine is poor is solved.

The invention discloses a method and a system for measuring an electrode constant of an oil conductivity valuing device, relates to the technical field of measurement, and breaks through the limitation of roughly taking an average value of an area of a polar plate traditionally by constructing an actual conductance cell model and defining parameter information, accurately deduces a conductance cell constant, and reversely calculates an effective relative area to determine the electrode constant. According to the method, the coaxial annular structure characteristics are attached, the influence of the edge effect and electric field line diffusion is avoided, and electrode constant calculation is more scientific and rigorous. Therefore, the accuracy of the constant value of the oil conductivity standard substance is guaranteed, a reliable reference is provided for verification and calibration of an oil conductivity meter, an effective oil conductivity measurement result is ensured, the electrostatic accident risk is reduced from the source, and the oil fuel quality and safety management and control are enhanced. The problems that an existing coaxial annular cylinder type electrode conductance cell is not strict in constant calculation and low in standard value credibility are effectively solved, and the electrode constant measurement accuracy of the oil conductivity valuing device is remarkably improved.

The invention discloses a working condition prediction method and device for an engine in a vehicle, a storage medium and the vehicle. The method comprises the steps that in the running process of a vehicle, first state information of the vehicle, second state information of an engine in the vehicle, environment information and fuel gas quality information are obtained, the first state information is used for representing the running state of the vehicle at the current moment, and the second state information is used for representing the running state of the vehicle at the current moment; the second state information is used for representing the operation performance of the engine at the current moment; on the basis of the first state information, the second state information, the environment information and the fuel gas quality information, characteristic information of the engine is determined, and the characteristic information is used for representing the running state of the engine at the current moment and the running state of the engine at the future moment; and analyzing the feature information by using a working condition prediction model, and predicting a target working condition of the engine at a future moment. The technical problem of low engine control measurement accuracy is solved.

The invention discloses a joint simulation solving method for a fuel oil thermal management system, and the method comprises the steps: determining a heat sink model through a thermophysical parameter iteration process on an Aspen Plus platform, and calculating the thermophysical parameters of each heat sink along with the changes of temperature and pressure; in the MATLAB / Simulink platform, the storage temperature T0 and the storage pressure P0 are determined according to the physical property of the fuel oil, the mass flow of the fuel oil is solved in a circulating mode through the heat source temperature iteration process, and the heat absorbed by the fuel oil at the FADEC system, the fuel oil pump, the airborne equipment and the engine heat source and the outlet fuel oil temperature are calculated in combination with a heat source module; the heat exchanger adjusts the flow of the consumable heat sink through the heat sink flow iteration process to reduce the fuel oil to the initial temperature T0; the joint simulation platform finally solves various performance evaluation indexes of the system according to feedback results of thermophysical property parameter iteration, heat source temperature iteration and heat sink flow iteration, the coupling mechanism between the heat exchanger module and the heat sink is clarified, and the problems that a traditional modeling method is single and poor in accuracy are solved.

The invention relates to the technical field of fuel ratio regulation and control, in particular to a fuel self-adaptive ratio regulation and control method for a waste multi-fuel combustion boiler, which comprises the following steps of: obtaining combustion characteristic parameters of various fuels, calculating combustion performance values of the various fuels, grouping and dividing the fuels according to the combustion performance values, and regulating and controlling the fuel ratio of the waste multi-fuel combustion boiler. Calculating a difference value of two groups of fuel combustion performance mean values to obtain an initial performance difference value, determining a fuel proportioning parameter according to the initial performance difference value, monitoring and analyzing temperature data and waste gas emission amount data in a boiler operation process, calculating a temperature fluctuation value and a waste gas emission fluctuation value to obtain a combustion quality influence coefficient, and calculating a combustion quality influence coefficient according to the temperature fluctuation value and the waste gas emission fluctuation value; collecting a steam pressure oscillogram and feed water flow in equipment operation parameters, calculating a steam pressure fluctuation value and a feed water flow fluctuation value to obtain an equipment operation influence coefficient, performing weighted fusion on the combustion quality influence coefficient and the equipment operation influence coefficient to obtain a comprehensive influence value, and performing calibration analysis on an initial performance difference value according to the comprehensive influence value; therefore, the self-adaptive regulation and control of the fuel ratio parameters are realized.

The invention discloses a variable-speed regulation electric centrifugal pump with flow feedback and a flow control method thereof, and belongs to the technical field of aero-engine control. The electric centrifugal pump comprises a permanent magnet synchronous motor, a centrifugal pump body, an equal pressure difference adjusting valve, a metering valve, a linear variable differential transformer and a motor controller. And the motor controller receives a fuel mass flow instruction of the engine controller and a metering valve opening signal fed back by the LVDT, outputs a motor control instruction and adjusts the rotating speed of the centrifugal pump to change the outlet pressure of the centrifugal pump. The constant-pressure-difference regulating valve senses the pressure change, drives the valve core of the metering valve to move, and changes the opening degree of the metering hole, so that the fuel flow is regulated; the LVDT detects the opening degree in real time and feeds back the opening degree, and flow closed-loop control is formed. According to the invention, on-demand supply of pump outlet pressure is realized through variable-speed regulation, accurate metering and feedback of flow are realized through the synergistic effect of the equal-pressure-difference regulating valve and the metering valve, pressure loss caused by a traditional throttle valve is eliminated, and the system efficiency is remarkably improved.

The invention relates to the technical field of knock control, and discloses an intelligent control system and method for engine knock and preignition, and the method comprises the following steps: collecting engine knock signal data and preignition signal data, and carrying out the signal processing of the knock signal data and the preignition signal data, the method comprises the following steps: generating knock intensity data and preignition intensity data, and during engine knock and preignition identification, setting multi-stage identification thresholds including a basic threshold, a dynamic self-learning threshold and a temperature compensation threshold, and updating the thresholds in real time by utilizing a self-learning algorithm, so that the engine knock and preignition identification accuracy is improved. The method can effectively adapt to sensor signal characteristic change caused by engine wear, fuel quality difference and environment change, solves the problems of misjudgment and missed judgment caused by a fixed recognition threshold value, ensures the accuracy and reliability of knock and preignition recognition, reduces control errors, and improves the reliability of knock and preignition recognition. And the dynamic property, the economical efficiency and the driving smoothness of the engine are effectively improved.

A system for determining properties of fuel supplied to an internal combustion (IC) engine and for adjusting operations of the IC engine based on the determined properties. The system includes an air-flow throttle configured to control the air supplied to the IC engine; a fuel-flow throttle configured to control the fuel supplied to the IC engine; an engine exhaust oxygen sensor and controller configured to receive readings from and control operation of the throttles. The controller is configured to perform a fuel-air determination program where the controller determines a percent-error air-to-fuel ratio (AF) based on a true AF ratio compared to an ideal AF ratio. The controller is configured to perform a fuel property determination and adjustment program in which the controller is configured to adjust operations of the IC engine based on a fuel property value determined using the percent-error AF ratio.

This invention provides a boiler energy-saving operation method based on intelligent algorithms. Addressing the pain points of traditional boilers that rely on manual experience for adjustment and struggle to adapt to dynamic operating conditions, it constructs a collaborative mechanism encompassing data perception, intelligent prediction, multi-objective optimization, and closed-loop control. Boiler operating parameters are collected by multi-dimensional sensors, pre-processed, and input into an LSTM-GBDT hybrid model to achieve high-precision thermal efficiency prediction. The DDPG reinforcement learning algorithm is then used to solve for the globally optimal operating parameters under safety and process constraints. Finally, closed-loop dynamic adjustment is achieved through a DCS system. This method overcomes the limitations of manual experience, transforming from single-parameter control to full-process collaborative optimization. It can adapt to load fluctuations and fuel quality changes, effectively improving boiler thermal efficiency and reducing fuel consumption while ensuring safe operation, and simultaneously reducing manual maintenance intensity, demonstrating strong industrial application value.

The present application belongs to the field of engine fuel control technology, and particularly relates to a fuel information processing method, an engine management device, a medium and a controller; by partitioning calibration of engine working conditions and combining preset reference physical quantity threshold conditions, the detection and response information of the control unit on the knocking phenomenon of poor oil products is used to realize the processing of fuel quality information under preset working conditions, and then the discrimination of fuel information is improved by combining the collection and processing of fuel filling information, and further the running state of the engine is improved by comprehensively processing the working condition information and adjusting the ignition angle; the method and product of the present application can meet the on-board diagnostic (OBD) capability, improve the adaptability of the engine to oil products, maintain a high fuel economy level and engine safety level, and can upgrade the control strategy on the basis of the existing hardware to improve the noise, vibration and harshness (NVH) performance of the vehicle and the robustness of the engine.

The invention belongs to the technical field of blast furnace ironmaking, and particularly discloses a solid fuel replacement and hydrogen-rich injection method in a hydrogen-rich carbon cycle oxygen blast furnace mode. According to the method, the quantitative replacement relation between the decarburized gas injection amount and the coke consumption reduction amount is established, a composite injection plan of'gas first and powder second and cooperative climbing 'is implemented, and hydrogen-rich gas enhanced injection is planned, so that the solid fuel consumption and the carbon emission are systematically reduced. The method specifically comprises the following three steps: establishing a fuel replacement reference, implementing decarburized gas dominant replacement and pulverized coal collaborative replacement in stages, planning hydrogen-rich gas injection reinforcement, and controlling key injection parameters and crude fuel quality at the same time. According to the method, the coke ratio is reduced by more than or equal to 60kg / t, the solid fuel consumption is reduced by more than or equal to 15%, the CO2 emission is reduced by more than 2%, the operation path is clear and controllable, the furnace condition is stable and smooth, the technical extensibility is high, and the method is suitable for industrial application of a large blast furnace HyCROF mode.

The invention relates to the technical field of oil quality analysis, and particularly discloses an oil quality analysis method based on automobile emission data, which comprises the following steps: S1, setting a driving state, acquiring emission data of standard fuel oil, and establishing a standard data set; s2, the vehicle driving process is divided into time periods before and after refueling, the speed of the time periods after refueling is monitored in real time, a change curve is generated, and the standard total emission amount and the oil quality coefficient are obtained according to the standard data set; s3, same speed monitoring and emission amount calculation are carried out in the previous time period, and a first coefficient is obtained; meanwhile, measuring the post-period emission amount, and calculating a second coefficient; s4, combining the two coefficients to obtain an actual oil product coefficient, and comparing the actual oil product coefficient with a standard oil product quality coefficient so as to judge whether the oil product has a quality problem or not; the fuel oil quality is effectively monitored and guaranteed, and the method has important significance on vehicle performance maintenance, emission control and environmental protection.

The application discloses a liquid fuel distribution groove, wherein an external fuel passage and an internal fuel passage are respectively separated by a blocking boss and a blocking area; a first fuel supply pipe can supply fuel to the internal fuel passage and the external fuel passage simultaneously; a second through hole is only in fluid communication with the external fuel passage; fuel supplied by the first fuel supply pipe flows into the internal fuel passage through a first through hole and flows forward through each atomizer connecting pipe distributed in a circumferential direction; fuel flowing into the external fuel passage through the first through hole flows reversely and finally flows into a second fuel supply pipe through the second through hole. The liquid fuel distribution groove can adjust fuel temperature simultaneously in the process of supplying fuel to a liquid fuel atomizer, plays a preheating or cooling role, and can also adjust fuel quality, and has simple structure and low manufacturing cost.

The utility model relates to high pressure fuel test technical field, and disclose a kind of high pressure fuel test equipment, including workbench, support leg, the bottom of the workbench is fixedly installed with two groups of mutually parallel support leg, the bottom of the support leg is fixedly installed with rubber antiskid pad, the corner of the one side of workbench top is fixedly installed with fuel tank, the one side of the top of fuel tank is fixedly installed with fuel delivery structure, the side of fuel delivery structure is fixedly installed with connecting pipe, the other end is fixedly connected with fuel mass flowmeter, the other corner of the one side of fuel tank is provided with fuel backflow structure in the top of workbench, the top of fuel tank is provided with fuel extraction structure corresponding to fuel backflow side, the utility model can accurately simulate various dynamic conditions of high pressure fuel system in actual operation, such as fuel injection process under different pressure, temperature, flow conditions.

A method for controlling multiple fuel injectors for a vehicle may include determining a total fuel mass for a combustion stage in a cylinder. The method may further include determining a first injection mass for a first fuel injector and a second injection mass for a second fuel injector. The sum of the first injection mass and the second injection mass is equal to the total fuel mass. The first and second fuel injectors are configured to deliver fuel to the cylinder. A first minimum mass per pulse of the first fuel injector is greater than a second minimum mass per pulse of the second fuel injector. The method may further include controlling the first and second fuel injectors at least partially based on the first and second injection masses.

The application discloses a residual oil alkali metal treatment-catalytic cracking combined processing method, which comprises the following steps: (1) mixing residual oil raw materials and alkali metals into a reactor to perform reaction; (2) performing solid-liquid separation on the material after the reaction in step (1) to obtain a solid-phase product and generated oil; and (3) feeding the generated oil obtained in step (2) into a catalytic cracking device, and performing fractionation on the material after the reaction to obtain dry gas, liquefied gas, catalytic cracking gasoline, catalytic cracking light diesel oil, catalytic cracking heavy distillate oil and coke. The method can produce high-quality low-sulfur gasoline fraction, has a long running cycle, does not need high-temperature and high-pressure conditions and has low hydrogen consumption, thereby effectively improving fuel quality, reducing device running cost, realizing energy saving and consumption reduction.

A system for determining a characteristic of fuel supplied to an internal combustion (IC) engine and for adjusting operation of the IC engine based on the determined characteristic. The system includes: an air flow throttle configured to control air supplied to the IC engine; a fuel flow throttle valve configured to control fuel supplied to the IC engine; an engine exhaust oxygen sensor; and a controller configured to receive readings from the throttle valve and control operation of the throttle valve. The controller is configured to execute a fuel-air determination procedure, wherein the controller determines a percentage error air-fuel ratio (AF) based on a comparison of a real AF ratio to an ideal AF ratio. The controller is configured to execute a fuel characteristic determination and adjustment procedure, wherein the controller is configured to adjust operation of the IC engine based on a fuel characteristic value determined using a percentage error AF ratio.

The application discloses a kind of oil storage equipment. Including oil storage tank, oil guide assembly, oil tank and sampling device. Oil storage tank is equipped with oil storage cavity. Oil guide assembly includes first oil guide pipe, second oil guide pipe and third oil guide pipe. One end of first oil guide pipe is provided with first oil guide port. One end of second oil guide pipe is provided with second oil guide port. One end of third oil guide pipe is provided with third oil guide port. Along the depth direction of oil storage cavity, first oil guide port is arranged above second oil guide port, and third oil guide port is arranged between first oil guide port and second oil guide port. Oil guide pipe is fixedly arranged on oil storage tank and communicates with oil storage cavity. Sampling device is connected with oil guide assembly to guide oil out of oil guide assembly. The oil storage equipment can obtain fuel oil at different depths in the oil storage tank for sampling analysis according to the external environmental characteristics of the oil storage tank, which is beneficial to improve the reliability of long-term fuel quality of the oil storage tank.

The invention discloses a boiler multi-source fuel blending method which is used for solving the problems that due to the fact that an existing fuel quality detection scheme is low in detection time efficiency, blending adjustment of multi-source fuel cannot be conducted in real time, the combustion efficiency of a boiler is reduced, pollutant emission exceeds the standard, and even a hearth is coked or extinguished due to heat value unbalance. The method comprises the following steps: acquiring element composition of the multi-source fuel through LIBS, and determining calorific value data corresponding to the multi-source fuel according to the element composition; according to the obtained element composition, position information and weight data of the multi-source fuel, constructing full-flow dynamic flow track data; determining an optimal flow set value of each coal feeding mechanism based on a multi-objective optimization algorithm according to the dynamic flow track data and the heat value data; and according to the optimal flow set value, a blending control strategy corresponding to each coal feeding mechanism is generated, and the blending control strategy is issued to each coal feeding mechanism, so that each coal feeding mechanism adjusts the rotating speed and the baffle opening degree according to the blending control strategy.

The invention discloses an aviation fuel oil supervision method and system based on multi-information fusion, and belongs to the technical field of aviation fuel oil measurement and control, a plurality of fuel quantity sensors are arranged in a fuel oil tank, and the fuel oil volume and the fuel oil quality of the fuel oil tank are measured based on a plurality of detected oil immersion heights. Specifically, the method comprises the following steps: collecting detection data of an oil quantity sensor, and preprocessing the data; based on three-dimensional space conversion, the height coordinate of the intersection point of the center position of the fuel tank and the fuel surface is obtained, and then the height of the ith fuel quantity sensor at the center position of the fuel tank is obtained. And calculating the final value of the oil immersion height detected by the ith oil quantity sensor, filtering the data based on the confidence coefficient, and calculating the volume V and the mass M of the fuel oil based on the effective final value of the oil immersion height. According to the invention, more advanced and high-reliability fuel oil measurement data are obtained based on data processing of a plurality of fuel quantity sensors, and the practicability is better.

The invention relates to the technical field of fuel sampling, and discloses a fuel abnormal sampling point determination method and system, and the method comprises the steps: determining a plurality of fuel sampling points, obtaining a plurality of lower calorific value measurement values in a time period corresponding to the fuel sampling points, analyzing all the lower calorific value measurement values, and determining a plurality of sampling fluctuation characteristics of the fuel sampling points; according to the lower calorific value measured value and the sampling fluctuation characteristics, the abnormal performance degree of the fuel sampling point is calculated; according to the multiple sampling loss rates of the time interval, the sampling process loss fluctuation degree of the fuel sampling point is obtained; the fuel abnormal sampling metric value of the fuel sampling point is calculated based on the abnormal performance degree and the sampling process loss fluctuation degree, the fuel abnormal sampling point is determined, the fluctuation characteristic of the fuel low calorific value measurement data and the sampling process loss condition are comprehensively considered, multi-dimensional quantitative evaluation is achieved, the determination precision of the fuel abnormal sampling point is guaranteed, and the fuel abnormal sampling point is determined. The abnormity identification accuracy is improved, and a reliable basis is provided for fuel quality management.

A system for determining properties of fuel supplied to an internal combustion (IC) engine and for adjusting operations of the IC engine based on the determined properties. The system includes an air-flow throttle configured to control the air supplied to the IC engine; a fuel-flow throttle configured to control the fuel supplied to the IC engine; an engine exhaust oxygen sensor and controller configured to receive readings from and control operation of the throttles. The controller is configured to perform a fuel-air determination program where the controller determines a percent-error air-to-fuel ratio (AF) based on a true AF ratio compared to an ideal AF ratio. The controller is configured to perform a fuel property determination and adjustment program in which the controller is configured to adjust operations of the IC engine based on a fuel property value determined using the percent-error AF ratio.

The application provides a self-resetting new energy sealed ship high-pressure oil injector safety valve, and relates to the technical field of new energy engines.The safety valve shell is internally slidably installed with a safety sealing block, the safety sealing block is provided with an annular buffer sheet on the side surface, the annular buffer sheet is provided with buffer channels, the buffer channels are arranged in a ring shape with the annular buffer sheet as the center, the annular buffer sheet is provided with an annular centrifugal sheet on the side surface, the annular centrifugal sheet is fixedly installed with an oil dirt filter screen on the surface, and the safety valve shell is provided with a pressure buffer mechanism below.The pressure buffer mechanism comprises the annular buffer sheet and the annularly arranged buffer channels, can efficiently shunt and depressurize the high-pressure oil liquid in the initial opening of the safety valve, and can disperse the concentrated flow into multiple streams to greatly weaken the initial impact force when the pipeline pressure of the ship range increasing engine suddenly rises due to the fuel quality difference, injector failure and the like and the high-pressure oil liquid impacts.

The present application relates to the technical field of temperature control, and an embodiment thereof provides a method, device and equipment for reducing the number of general overtemperature times of the wall temperature of an intermediate superheater. The method for reducing the number of general overtemperature times of the wall temperature of the intermediate superheater comprises the following steps: determining factors affecting the wall temperature of the intermediate superheater, wherein the factors include the unit load change rate, fuel quality, boiler pressure, feed water flow and ash deposition condition; establishing a mapping relationship between each factor and the wall temperature of the intermediate superheater according to historical sample data, to obtain a plurality of mapping relationships; determining the factor having the greatest impact on the wall temperature of the intermediate superheater from the factors according to the plurality of mapping relationships; and determining the value of the factor having the greatest impact, to reduce the number of general overtemperature times of the wall temperature of the intermediate superheater. The embodiment provided by the present application can quickly determine the factors affecting the temperature of the intermediate superheater.

The present invention relates to the field of blast furnace fuel quality control and efficient utilization in the field of metallurgical production, and specifically to a method for predicting the proportion of weakly caking coal in stamped coke. The method comprises the following steps: 1) sample preparation: randomly selecting N samples, where N is greater than or equal to 7; 2) X-ray diffraction measurement: performing XRD analysis on the N samples obtained in step 1) to obtain X-ray diffraction spectra; 3) data peak decomposition: performing peak decomposition on the XRD spectra obtained in step 2) to obtain the XRD diffraction peak 002; 4) characterization of the coke microstructure: quantitatively characterizing the microstructure using the microstructure parameter d002, where d002 is the distance between single aromatic layers of the coke microstructure; and 5) statistical calculation: calculating the d002 data of each sample, and calculating its average value E and standard deviation σ, which are used to predict and determine the proportion of weakly caking coal in stamped coke. The method provides guidance to steel companies in selecting and purchasing stamped coke according to their needs based on the above aspects.

The present application is suitable for the technical field of vehicle fuel state and pollutant emission data monitoring, and provides a vehicle-mounted fuel quality monitoring and emission abnormality display system and method. An on-board controller records signal values of a first oxygen sensor before and after refueling in a normal driving process. When a difference value exceeds a standard range, a "fuel may be contaminated" fault code is reported. When a second oxygen sensor signal value exceeds a range, a "exhaust emission exceeds a standard" fault code is reported. When a fuel water content sensor signal value exceeds a range, a "fuel water content exceeds a standard" fault code is reported. When a knock sensor signal value exceeds a range, a "poor fuel quality" fault code is reported. Information about the above conditions is uploaded to a display unit, and the display unit displays an abnormality prompt. Problems such as vehicle failure and substandard emission caused by fuel quality are effectively solved, and monitoring and early warning of fuel quality and vehicle emission data are realized.

The invention discloses a control method and device for a valve in a vehicle, a storage medium and the vehicle. The method comprises the steps that working condition information and fuel gas quality information of an engine in a vehicle are obtained, the working condition information is used for representing the running state of the engine, and the fuel gas quality information is used for representing the combustion sufficiency degree of fuel in the engine in the running state; based on the working condition information and the fuel gas quality information, a first moment and a second moment corresponding to the engine are determined, the first moment is used for representing the moment when a valve in the engine is triggered to execute lift operation, and the second moment is used for representing the moment when the valve is triggered to execute closing operation; based on the first moment and the second moment, a control strategy of the valve is determined, and the control strategy is used for representing a rule for controlling execution of the valve; and according to the control strategy, the valve is controlled to execute lift operation at the first moment and execute closing operation at the second moment. The technical problem of low valve control accuracy in the vehicle is solved.

The invention discloses an evaluation method and device for the stable combustion capacity of a boiler, electronic equipment and a storage medium. Through fuel quality control and pulverized coal fineness optimization, establishment of stable combustion basic conditions and combination of a progressive load regulation and control strategy, the boiler can still maintain stable combustion under low load, and combustion interruption or flameout caused by load reduction is avoided; the problems that in the prior art, low-load stable combustion capacity evaluation is not systematic, combustion state monitoring is not comprehensive, and a load adjusting strategy is not scientific can be effectively solved, and the method has good application prospects and popularization value.

The invention provides an intelligent advantage-seeking ignition control method oriented to a complex fuel oil environment. The method comprises the steps that real-time operation parameters of an engine are obtained, and self-learning enabling conditions are judged; when the enabling condition is met, forward self-learning optimization is executed with the basic ignition angle or the conservative ignition angle under the EGR working condition as the starting point; monitoring a knock signal in real time in the optimizing process, and dynamically adjusting an ignition angle according to the knock intensity; independently learning areas, and updating the ignition angle compensation value of each area in real time; the ignition angle instruction is corrected through anti-oscillation and protection mechanisms such as partition delaying and signal filtering and is output to an actuator; meanwhile, the refueling working condition is recognized, and self-adaptive resetting of the self-learning value is achieved. Through closed-loop self-learning, detonation dynamic feedback, zoning fine control and EGR collaborative strategies, the method can adapt to fuel quality fluctuation and engine aging, and the dynamic property, fuel economy and emission compliance of the engine are remarkably improved, and particularly the method is suitable for scenes with large fuel quality fluctuation and complex working conditions.