1361 results about "Fuel injection" patented technology

A combustor includes a combustion liner that defines a combustion chamber and an outer sleeve spaced apart from the combustion liner, such that an annulus is defined between the combustion liner and the outer sleeve. The combustor further includes a fuel injection assembly having a boss coupled to at least one of the combustion liner and the outer sleeve. The boss includes an inner flange coupled to the combustion liner, an outer flange, and a body extending between the outer flange and the inner flange. The boss defines a cooling circuit having a post-impingement plenum defined in the inner flange between an inner wall of the inner flange and an impingement plate in cooling proximity to the inner wall; and a plurality of film cooling channels that are defined in the inner flange and fluidly couple the post-impingement plenum to the combustion chamber.

The application provides an integrated flame stabilizer with a tail edge cavity, which comprises a flame stabilizer, an oil injection rod, a cooling gas inlet pipe and a tail edge wing plate arranged at the rear side of the flame stabilizer, and a stable backflow ignition area is formed in the downstream area of the flame stabilizer; a plurality of cooling channels are arranged on the rear side plate of the flame stabilizer between the two tail edge wing plates, and the airflow direction at the outlet of the cooling channels is inclined to the flow direction, so that a cooling vortex is formed in the tail edge cavity, the flame stabilizer and the backflow ignition area are spaced from each other, the flame stabilizer and the downstream backflow ignition area are isolated from each other to reduce the thermal load of the components such as the flame stabilizer and the fuel injection pipe, the ablation and coking problems are avoided, meanwhile, the flame stabilizing function of the flame stabilizer is not damaged, and the influence on the backflow ignition area behind the stabilizer is small.

A fuel injection system for an engine of a vehicle includes a throttle body and an elastomeric injection manifold coupled to the downstream end of the throttle body. The injection manifold defines a fuel injector socket. The fuel injection system also includes a fuel injector receivable by the fuel injector socket of the injection manifold and a fuel rail fluidly coupled to the fuel injector. The fuel rail supplies fuel to the fuel injector.

Embodiments of the present application disclose a fuel injection parameter adjustment method, device, equipment and storage medium. The fuel injection parameter adjustment method comprises: determining that a vehicle enters a series-parallel hybrid working condition; recording a set of initial fuel injection parameters of an engine; performing fuel injection parameter self-learning, obtaining a plurality of sets of test fuel injection parameters based on the set of initial fuel injection parameters; sequentially using the plurality of sets of test fuel injection parameters to run the engine, and calculating a plurality of test fuel consumptions of the vehicle; wherein each set of test fuel injection parameters corresponds to a test fuel consumption; the running time of each set of test fuel injection parameters is a first self-learning time; based on comparing the plurality of test fuel consumptions, determining an optimal self-learning result from the plurality of sets of test fuel injection parameters; and replacing the initial fuel injection parameters with the self-learning result.

The invention discloses a dual-fuel engine combustion control method based on hydrogen-ammonia energy ratio and gas distribution overlap angle regulation and control, which comprises the following steps: 1) fuel ratio control: acquiring current operation state parameters of an engine, determining a target AER according to preset mapping, regulating ammonia gas supply quantity and hydrogen supply quantity to enable the actual AER to reach the target AER, and controlling the fuel ratio; the AER is adaptively set according to engine load and combustion stability conditions; 2) valve timing control: adjusting the opening time of an intake valve or the closing time of an exhaust valve through a variable valve timing mechanism so as to change a valve timing overlap angle VOA, wherein the VOA is set to be a negative value, a small overlap angle or a positive overlap angle according to the working condition of an engine; (3) injection time sequence optimization is conducted, specifically, the injection time of ammonia gas and the in-cylinder direct injection time of hydrogen are controlled respectively, and coordinated optimization of a fuel injection strategy and valve timing is achieved; and 4) closed-loop steady-state control: monitoring a combustion state and an emission index in real time, comparing the combustion state and the emission index with a threshold value to serve as a feedback signal, and correcting the target AER and VOA settings in time. According to the dual-fuel engine combustion control method based on regulation and control of the hydrogen-ammonia energy ratio and the gas distribution overlapping angle, the energy ratio of hydrogen fuel and ammonia fuel and the overlapping opening angle of an intake valve and an exhaust valve are dynamically adjusted under different working conditions, so that the combustion reaction rate and temperature are coordinated, and the stable and efficient combustion process is achieved; and harmful emissions of NOx, unburned ammonia and the like are obviously reduced.

Disclosed are an apparatus for a simulation test of diesel engine fuel spray in an alpine environment and a test method, the apparatus comprising a fuel storage and pretreatment device, a fuel injection system, an optical visualization system, an environment chamber, and a spray pretreatment system. In alpine environmental conditions, the apparatus can achieve high-pressure injection of liquid, separate injected atomized mist into fine droplets and impinge same on a wall surface by means of a multi-droplet generation apparatus and a wall surface apparatus, and observe and record the whole process by means of an optical visualization path. According to the present invention, the problem of difficulty in distinguishing droplets due to the coalescence of spray into a sheet is avoided, the costs of a traditional spray and droplet test solution can be significantly reduced, and the problem of a high level of dependence on a control program in a constant volume vessel solution is solved. According to the present invention, simulation of spray test in an alpine environment is possible, and the test apparatus has a simple structure. Moreover, it is possible to conduct regular research on free spray, multi-droplet wall impingement, spray wall impingement, and development characteristics thereof under conditions such as different altitudes and different temperatures.

The invention relates to the technical field of vehicles, and discloses an engine intelligent layered thermal management system and method based on multivariable predictive control, and the system comprises a thermal management execution module, an information sensing module and an intelligent control module; the information sensing module is used for collecting real-time information and sending the real-time information to the intelligent control module; the information sensing module comprises a plurality of sensors and a communication interface, the plurality of sensors at least cover a temperature sensor, a pressure sensor and a flow sensor, and the communication interface is used for obtaining engine torque, rotating speed, fuel injection amount, boost pressure and vehicle speed information; the intelligent control module receives the real-time information sent by the information sensing module, performs thermal load prediction and multi-target optimization calculation to obtain an optimal control sequence, and sends the optimal control sequence to the thermal management execution module; and the thermal management execution module receives the optimal control sequence and calls an execution element to execute a thermal management action.

A fuel pre-heating component in a gas turbine engine includes a component housing extending around a central axis from a first end to a second end, wherein the component housing includes walls that define an inner chamber, a heating element positioned inside the inner chamber, and a plurality of internal fuel channels disposed within the component housing and configured to be heated by the heating element.

The invention relates to the technical field of engine control, in particular to an engine combustion control method, device and system based on double oil sprayers and a computer program product. Comprising the steps that when an engine enters a lean-burn working condition and meets a self-learning condition, self-learning of the injection starting angle and the excess air coefficient of an auxiliary oil injector is conducted; ignition advance angle self-learning of the auxiliary fuel injector is carried out; and fuel injection control over the auxiliary fuel injector is conducted on the basis of the injection starting angle, the excess air coefficient and the ignition advance angle obtained through self-learning. And when refined fuel oil control is carried out to achieve the optimal fuel consumption of the engine, the lowest NOx emission requirement under the lean-burn working condition of the engine is met.

The invention provides a turbine engine starting processing method and system and a storage medium, and the method comprises the steps: obtaining the rotating speed of a high-pressure rotor, and dividing the high-pressure rotor into a cold operation stage, an ignition stage, an acceleration stage and a slow transition stage which are executed in sequence according to the rotating speed of the high-pressure rotor; a corresponding self-adaptive control process is executed in each stage of the ignition stage, the acceleration stage and the slow transition stage, the self-adaptive control process comprises the steps that environment parameters and stage identification are obtained, and the environment parameters comprise the environment temperature, the flight height and the flight Mach number; processing the environment parameters by using the comprehensive correction logic to obtain a comprehensive environment correction coefficient; determining a target fuel control quantity based on the stage identifier and the comprehensive environment correction coefficient; target fuel injection pressure and target ignition parameters are determined based on the stage identifier, the environment temperature and the flight height; and starting control is executed based on the target fuel control quantity, the target fuel injection pressure and the target ignition parameters. The starting success rate and reliability of the engine can be improved.

A fuel injection valve includes a needle (20) (valve body), a fixed core (13), a movable core (30), a main body (12) (retainer), a non-magnetic member (14) (retainer), and a stopper member (60). The movable core has an inner core (32) that contacts the stopper member, and an outer core (31) that is press-fitted into an outer peripheral surface of the inner core. The outer core has, in a moving direction of the movable core, a press-fit portion (311) that is press-fitted into the outer peripheral surface of the inner core, and a non-press-fit portion (312) that is not press-fitted into the outer peripheral surface of the inner core and is adjacent to the press-fit portion in the moving direction. Between the inner peripheral surface of the main body and the non-magnetic member and the outer peripheral surface of the movable core, the smallest gap in the press-fit portion is larger than the smallest gap in the non-press-fit portion.As a result, variation in fuel injection quantity can be reduced while simultaneously adopting a core boost structure.

The invention discloses a low-temperature starting control method and system for an aero-engine, and the method comprises the following steps: S1, collecting the operation parameters and basic total fuel injection quantity of the engine, the operation parameters comprising the environment temperature of the engine; s2, determining injection parameters of a combustion improver according to the collected environment temperature, and performing combustion improver injection, wherein the injection parameters of the combustion improver comprise the injection starting time and the injection duration of the combustion improver; and S3, secondary injection parameters of fuel oil are determined according to the collected environment temperature, and fuel oil injection is conducted. According to the invention, direct starting of the aero-engine in a low-temperature environment of-50 DEG C can be realized under the condition of starting without the help of an external auxiliary combustion-supporting structure through cooperation of secondary injection of the combustion improver and the fuel oil, so that on one hand, the structural arrangement of the aero-engine can be simplified; and on the other hand, the use scene of the aero-engine can be expanded to a great extent.

The invention discloses a combustion chamber fuel injection and oil-gas mixing system suitable for a low-temperature environment, and belongs to the field of combustion chambers of gas turbines, the combustion chamber fuel injection and oil-gas mixing system comprises a flame tube, a centrifugal nozzle and a two-stage cyclone which are coaxially arranged, after fuel is atomized through the centrifugal nozzle and enters, the fuel is further atomized through rotational flow of an inner ring of the two-stage cyclone and enters the flame tube, and the fuel is injected into the combustion chamber through the centrifugal nozzle. External high-pressure air is swirled through the outer ring of the two-stage swirler to form swirling air, and internal fuel spray is crushed, atomized and mixed; a venturi tube is arranged at the end, close to the flame tube, of the inner ring of the two-stage cyclone, vortex generators are evenly arranged on the inner wall of the expansion section of the venturi tube in the circumferential direction, and oil mist with the small and even particle size is formed after the atomized mist is acted. Through multi-stage rotational flow, oil mist with fine and uniform granularity is formed, the atomization effect is optimized, and the fuel oil atomization quality and combustion stability in a low-temperature environment are improved.

A mobile fusion device (MFD) comprises three main sections: the MFD reactor (467), MFD support sub-systems (468), and the MFD support and fuel injection sub-systems (469), which are indicated by broken lines in Figure 1 The MFD reactor (467) is where the Deuterium and Tritium fuel is heated to high enough temperatures and densities and confinement times that fusion occurs, releasing neutrons that are absorbed in and heats up the 17Li-83Pb breeder blanket where more Tritium fuel is bred and where heat is transferred to Helium coolant. The MFD support sub-systems (468) houses auxiliary power units that generate electricity to power the electrical sub-systems of the MFD, and houses the MFD control computer, and where the Helium coolant is cryogenically cooled and purified, and where the 17Li-83Pb breeder blanket fluid is purified by separating and storing Deuterium fuel and Tritium fuel and Helium coolant, and where a Helium heat exchanger is located. The MFD support and fuel injection sub-systems (469) houses Deuterium and Tritium neutral beam injection plasma heating systems and a Deuterium and Tritium fuel gas puffer system and a Deuterium and Tritium fuel storage and pellet manufacturing system, and where the 17Li-83Pb breeder blanket fluid is purified by separating and storing Deuterium fuel and Tritium fuel and Helium coolant, and where a Helium heat exchanger is located, and where the Helium coolant is cryogenically cooled and purified, and houses auxiliary power units that generate electricity to power the electrical sub-systems of the MFD. The MFD is housed within a multi-layered pressurised outer containment pod MLP, which has a multi-layered pressurised rear access hatch MLH. The MFD is mounted on a sliding raft SR for ease of access.

A fuel nozzle for a turbine engine. The fuel nozzle has a premixer body, vortex generator, air injection orifice, and fuel injection orifice. The premixer body defines a primary flow path. The air injection orifice is provided in the premixer body and located downstream of the vortex generator. The fuel injection orifice is provided in the premixer body and opens into the primary flow path.

The invention provides a separation control method and device and a storage medium. The method comprises the steps that a gear shifting request sent by a gearbox control unit is received; the current fuel injection amount is detected; if it is detected that the current fuel injection amount is smaller than the preset fuel injection amount, the current remaining fuel amount and the current engine rotating speed are obtained; based on the current residual fuel quantity and the current engine rotating speed, the target moment is determined, and the target moment is the moment when the engine torque is reduced to the first preset engine torque; and the target interaction information is sent to the gearbox control unit, the target interaction information comprises the target moment, and the target moment is used for the gearbox control unit to control the clutch to be separated. According to the embodiment of the invention, the target moment is determined through the current residual fuel quantity and the current engine rotating speed, so that the problem of improper separation time caused by clutch separation based on the output torque under the condition that the output torque is inaccurate is avoided, and the accuracy of the clutch separation time is improved.

The invention provides an oil injection prediction control method and device and electronic equipment, and relates to the technical field of vehicle control. The method comprises the steps that working condition data of a vehicle in a preset collection period are obtained, the working condition data comprise torque of an engine and receding angle data of all combustion cylinders, and the receding angle data comprise the number of times and duration of receding angles of the combustion cylinders in different ranges; dividing the torque of the engine into a plurality of working condition gradients, and determining an influence weight corresponding to each working condition gradient; the operation duration of the torque of the vehicle in each working condition gradient in the current collection period is determined; for each combustion cylinder, determining an oil injection correction factor of the combustion cylinder according to the operation duration of the torque at different working condition gradients, the influence weight of each working condition gradient and the retreating angle data of the combustion cylinder; and correcting the oil injection quantity of each combustion cylinder according to the oil injection correction factor of each combustion cylinder so as to control the actual oil injection quantity of the combustion cylinder.

The application discloses a fuel injection control method and device, electronic equipment and storage medium. The fuel injection control method comprises the following steps: after the accelerator pedal is stepped on, determining the engine torque demand according to the current working state of the engine and the stepping amount of the accelerator pedal, and determining the required intake air amount and the required fuel amount of the engine according to the engine torque demand; determining the current throttle opening of the engine according to the required intake air amount, and after the current fuel injection pulse width of the fuel injector is determined according to the required fuel amount, controlling the throttle valve to hit the target position corresponding to the current throttle opening, and controlling the fuel injector to open to the current fuel injection pulse width; acquiring the current fuel injection rail pressure, and determining the fuel injection mass flow of the engine by querying the fuel injection mass flow calculation MAP according to the current fuel injection pulse width and the current fuel injection rail pressure; and inputting the fuel injection mass flow into the engine model to output the current air-fuel ratio. The application realizes real-time adjustment of the fuel injection mass flow.

An exhaust gas recirculation mixer according to certain embodiments includes a chamber through which a first fluid is operable to flow in a downstream direction toward a mixing passage. The chamber is fluidically connected with the mixing passage via a first nozzle, and the mixing passage extends along a longitudinal axis defining the downstream direction and an upstream direction opposite the downstream direction. The exhaust gas recirculation mixer further includes a second nozzle and a fuel nozzle. The second nozzle extends into the mixing passage and is configured to direct a second fluid toward the mixing passage. The second nozzle comprises a second nozzle outlet portion circumferentially surrounded by the first nozzle. The fuel nozzle comprises a fuel nozzle outlet portion configured to inject fuel into the chamber in a fuel injection direction, and the fuel nozzle outlet portion is positioned upstream of the first nozzle.

The invention discloses an engine multi-vehicle-type adaptive NVH quality optimization method and system, and belongs to the technical field of automobile engine debugge.The method comprises the steps that after an engine is installed on a to-be-adapted vehicle, vehicle working condition data are collected in real time, the vehicle working condition data comprises a vehicle speed, an accelerator opening degree, an engine rotating speed, a gear, a hydraulic torque converter locking state and an engine oil temperature signal; the vehicle working condition data is compared with the working condition of the engine noise sensitive working condition, and whether the engine noise sensitive working condition is entered or not is recognized; when the engine has the noise sensitive working condition, an NVH control strategy embedded in an engine electronic control unit is activated; the NVH control strategy comprises adjustment of an engine ignition angle and oil injection parameters; the engine is controlled according to the ignition angle optimization control instruction and the oil injection parameter optimization instruction; and when the vehicle runs out of the working condition of the noise sensitive working condition of the engine or gear shifting is completed, the conventional combustion control logic is recovered. And the rising rate of the pressure in the cylinder is effectively reduced, so that the structural knocking noise within the range of 150-600Hz is inhibited.

An internal combustion engine includes a fuel tank, a fuel injection valve, a fuel passage, a shut-off valve disposed in the fuel passage, and a pressure sensor that detects a passage fuel pressure that is a pressure of fuel in a portion of the fuel passage between the shut-off valve and the fuel injection valve. The controller outputs a valve closing signal to the shut-off valve, and executes a determination process of determining whether the shut-off valve is stuck open based on a decrease amount of the passage fuel pressure that occurs until an elapsed period after the valve closing signal is output reaches a predetermined specified period. The controller excludes, from the elapsed period, a period in which a fuel cutoff process for stopping fuel injection by the fuel injection valve during operation of the internal combustion engine is executed.

The invention relates to an intelligent valve terminal control method and system for electronic injection of an aero-engine, and the method comprises the steps: obtaining multi-source state data in the operation of the engine, and carrying out the preprocessing to form a high-dimensional time sequence feature vector; a deep learning inference model is utilized to accurately identify a current working condition and predict a future evolution trend; generating an optimal fuel injection strategy based on a model predictive control and reinforcement learning mixed strategy; on-line self-adaptive correction is carried out by monitoring a comparison result of an actual response and an expected output, and an optimization instruction sequence is generated; and finally, converting the signal into a multi-channel synchronous pulse width modulation driving signal, and accurately controlling the coordinated action of a plurality of fuel injection valves. Intelligent and fine control over fuel injection is achieved, the combustion efficiency, the dynamic response speed and the operation stability of the engine are effectively improved, meanwhile, emission is reduced through multi-target optimization, and the problems that in the prior art, control lags behind, multi-valve cooperation precision is insufficient, and working condition adaptability is poor are solved.

The invention discloses a combined air inlet two-stage combustion six-stroke engine, and relates to the field of power energy. In order to overcome the defects that in the prior art, a six-stroke engine is insufficient in gas inlet in the secondary combustion stage, poor in oil-gas mixing quality and low in combustion efficiency, according to the technical scheme, the six-stroke engine comprises a combustion chamber assembly, a fuel injector, a transmission mechanism and a gas distribution mechanism; the gas distribution mechanism comprises a gas inlet pipeline, an exhaust pipeline, a gas storage cavity, a gas inlet pipeline valve, a scavenging duct and a scavenging duct one-way valve, the working cycle of the engine comprises two times of gas inlet and two times of oil injection combustion acting, and the gas storage cavity releases gas to supplement fresh air in the combustion chamber in the second time of gas inlet. The combustion chamber assembly comprises a cylinder, a piston and a cylinder cover, the piston reciprocates in the cylinder, and the cylinder and the cylinder cover are closed to form a combustion chamber. The invention is suitable for improving the heat efficiency and output performance of the engine, especially for an internal combustion engine power system requiring multiple combustion work.

The invention provides a vehicle control method and device, electronic equipment and a vehicle, and is applied to the technical field of vehicle intelligent control. The method comprises the steps that in response to a received starting instruction of an engine, the rail pressure of a fuel injection metering valve, fuel supply data and the rotating speed of the engine are obtained; whether a fuel injection metering valve is blocked or not is determined according to the rail pressure and the fuel supply data; executing a self-cleaning strategy of the oil injection metering valve in response to determining that the oil injection metering valve is stuck and the rotating speed of the engine is smaller than or equal to the preset rotating speed; according to the self-cleaning strategy of the oil injection metering valve, the working frequency of a valve element of the oil injection metering valve is reduced, and the movement amplitude of the valve element is increased. The clamping stagnation risk caused by fuel oil impurities is reduced, meanwhile, abrasion caused by long-time low-frequency long-stroke work of the oil injection metering valve is effectively avoided, and the service life of the oil injection metering valve is prolonged.

The invention discloses a vehicle engine control method and device and a vehicle, belongs to the technical field of vehicle control, and aims to solve the technical problems that the pressure in an air inlet pipe of an existing engine system is rapidly increased to be very high when a user loosens an accelerator, and noise exists during pressure relief. The method comprises the steps that in response to release of an accelerator pedal of a vehicle, whether an engine is in a fuel cut-off forbidding working condition or not is judged; if yes, the throttle valve is controlled to be closed after being delayed for a first preset duration and / or closed at a preset speed, the fuel injection quantity of the engine is reduced, and the engine charges a battery; and if not, the throttle valve is controlled to increase the opening degree and / or keep the opening degree of the throttle valve to be maximum, and oil injection to the engine is stopped. According to the method, when a user loosens an accelerator, the pressure in the air inlet pipe can be stably reduced, noise generated during pressure relief is eliminated, meanwhile, redundant power generated during pressure relief can be utilized, and the fuel economy is improved while the customer experience is improved.

The invention relates to cleaning equipment for a fuel oil injection pipe, the cleaning equipment comprises a cleaning table, a cleaning cavity is formed in the middle position of the top of the cleaning table, and supporting frames are installed at the tops of the two ends of the cleaning table. A first electric telescopic rod in the cleaning assembly drives a first cleaning brush and a second cleaning brush to synchronously brush the inner wall and the outer wall of the fuel oil injection pipe body, and a movable pipe in the flushing assembly is matched to drive a nozzle to flush the fuel oil injection pipe body, so that oil stains and impurities are effectively removed; and a heating rod, an upper heating cover and a lower heating cover in the drying assembly are combined to efficiently dry the cleaned fuel injection oil pipe body, it is ensured that the interior of the oil pipe is dry and free of residues, and secondary pollution is avoided.

The invention relates to the technical field of automobile superchargers, and particularly discloses a turbocharger overspeed protection system which is characterized in that an air mass flow meter is connected to the air inlet end of an air compressor, a turbine is connected to the exhaust end of an engine, and the turbine is connected with the air compressor through a transmission shaft; the waste gas bypass mechanism is arranged at the air inlet end and the exhaust end of the turbine in parallel. The rotating speed sensor is used for detecting the rotating speed of the transmission shaft. Based on a safety overspeed area range preset by an electronic control unit, the fuel injection quantity of an engine and the opening degree of a waste gas bypass mechanism are dynamically adjusted according to data parameters fed back by a first detection unit, an air mass flow meter and a rotating speed sensor; namely, the exhaust state of the engine is actively intervened by regulating and controlling the oil injection quantity and precisely distributing waste gas, so that the energy for driving the turbine is indirectly controlled, the rotating speed of the turbocharger is always within a safe set range, and the running reliability and stability of the turbocharger are improved.

The invention discloses an aircraft high-altitude operation data calibration method based on a ground test, and the method comprises the following steps: S1, simulating all altitude environments, and selecting different working conditions; s2, calibrating operation data under different altitude environments and different working conditions; wherein in the step S2, the operation data comprises the fuel injection quantity, when the fuel injection quantity is calibrated, the working condition is selected, the optimal fuel injection quantity is set as an initial value under the 0-altitude environment, then adjustment is conducted on the basis of the initial value, and the fuel injection quantity under the same working condition at all the altitudes is determined according to the change condition of the aircraft power. The calibration process is relatively simple, the adjustment basis is reliable, the adjustment efficiency is high, the result is reliable, and the high-altitude flight reliability of the aircraft can be ensured.

The invention discloses a hydrogen injection control method of a hydrogen engine and related equipment, relates to the field of fuel injection and control of the hydrogen engine, and mainly aims to solve the problem of insufficient control precision of hydrogen injection control of the existing hydrogen engine. The method comprises the steps that the initial adjustment hydrogen injection amount is calculated based on operation condition data of an engine; introducing a short-term correction coefficient and a long-term correction coefficient to compensate the initial adjustment hydrogen injection amount so as to determine a target hydrogen injection amount; and determining a hydrogen spraying control instruction based on the target hydrogen spraying amount and the density correction coefficient. The method is used for the hydrogen injection control process of the hydrogen engine.

The invention relates to a cooperative control method and system for lean-burn emission of a marine low-zero carbon fuel engine. The method comprises the steps that real-time in-cylinder pressure and temperature data are collected, and an in-cylinder pressure curve and an in-cylinder temperature curve are obtained through time sequence alignment, filtering denoising and interpolation fitting processing; extracting time sequence data based on the curve, calculating average effective pressure and peak temperature in a cylinder to determine a current load interval, and marking a risk tag sequence; calculating the generation rate of the nitrogen oxides and the particulate matters by matching with reaction condition parameters, and extracting reverse variation characteristics to obtain strong mutual exclusion correlation of the nitrogen oxides and the particulate matters; and based on the associated starting model, predicting and controlling the output oil injection quantity and the air inflow adjusting quantity, calculating the transient time sequence lag quantity through a dynamic lag model, and after superposition, calibrating through a combustion phase matching algorithm to generate an oil injection timing and air inlet valve opening control instruction after transient adjustment. The method is adaptive to the combustion characteristics of low-zero-carbon fuel, emission contradictions are accurately captured, transient emission peak values are avoided, and multi-pollutant collaborative control is achieved.