173 results about "Idle speed" patented technology

The invention relates to a transverse movement berthing control method considering main thrust idling, which comprises the following steps of: dividing transverse movement berthing control into a controller part and a thrust distribution part, designing a three-degree-of-freedom controller for ship movement by utilizing a nonlinear disturbance observer in the aspect of the controller, and calculating force and moment required for transverse movement of a ship; in the aspect of thrust distribution, the discontinuity of a main thrust idle speed area and rudder force is considered, a thrust action range is decomposed into nine action ranges according to the thrust state of double main thrusters, multi-domain switching logic is designed to complete thrust distribution of control force, and therefore closed-loop control over ship transverse moving berthing is achieved. A simulation result proves the effectiveness of the method.

The invention discloses a method for calculating road network traffic operation carbon emission by using vehicle trajectory data. The method comprises the following steps: firstly, segmenting vehicle GPS trajectory data according to timestamps and serial numbers to obtain a trajectory subset of each vehicle; determining a vehicle stop interval based on the minimum instantaneous speed threshold value, and dividing the trajectory data into driving sections to obtain a driving trajectory; constructing an urban road network model, calculating a spatial distance between a track and a road section, screening candidate road sections according to a shortest distance threshold value, obtaining a matched road section in combination with a minimum difference value of an azimuth angle, mapping track points to the road section, and obtaining re-expanded driving section track data; according to the timestamps and the road section serial numbers, segmenting according to the road section serial numbers to obtain each road section track subset; idle speed and normal driving intervals of a road section are identified through spatial-temporal clustering, a MOVES model database is introduced to perform classified calculation on carbon emissions of the corresponding intervals, the carbon emissions are summarized to obtain road section emissions, and road network traffic carbon emissions are summarized to obtain road network traffic carbon emissions. According to the method, macrotopography and microscopic real-time working condition data are fused, and a road section carbon emission measuring and calculating method is perfected.

The invention provides a vehicle travel calculation method and device, electronic equipment and a storage medium, and the method comprises the steps: marking a travel starting point and setting an activation state if a vehicle enters a travel starting stage; if the vehicle in the activated state is in a static state, determining idling duration based on time information of an idling starting point corresponding to a static moment and time information of a target track point corresponding to an idling judgment moment; if the idle speed lasting time meets the preset time condition, a track point between the idle speed starting point and a target track point serves as an idle speed track point, and whether the vehicle enters a travel ending stage or not is determined based on the actual driving speed at each speed calculation moment and the current state of the travel state; and if yes, marking the track point at the travel ending moment as a travel ending point, setting the travel state as an inactive state, and determining a vehicle travel result based on the travel starting point, the idle speed track point and the travel ending point. According to the invention, the accuracy of stroke calculation is improved.

The invention discloses a method for achieving starting and dynamic power output of a range extending system. The method comprises the following steps that 1, a BMS feeds back an electromagnetic SOC to a VCU in real time; 2) judging by the VCU; (3) a shutdown instruction is sent to the ECU; 4) the ECU controls the engine to stop and sends a stop instruction to the GCU; (5) the GCU controls the generator to stop; (6) a starting instruction is sent to the ECU; (7) the ECU sends a starting instruction to the GCU; (8) the GCU drags the engine at a constant speed; (9) the ECU judges whether an ignition instruction is sent or not according to the rotating speed, the oil temperature and the water temperature; (10) the GCU stops dragging; (11) the ECU controls the engine to enter an idle speed; and (12) the ECU sends a preparation completion instruction to the VCU, the situation that energy consumption is increased due to the fact that a traditional range extending system repeatedly switches on and off and frequently adjusts rotating speed gears in the battery charging process is optimized, when the working condition is stable, the battery is kept at a proper capacity, the stability of the battery is improved, and the service life of the battery is prolonged.

A transmission system selectively coupled to an engine crankshaft of an internal combustion engine arranged on a vehicle includes a transmission, an aftertreatment system, an accessory device and a controller. The aftertreatment system reduces emissions in an exhaust of the internal combustion engine. The accessory device is configured to provide power. The controller operates in an aftertreatment heat-up mode such that the aftertreatment system is heated up to an elevated temperature and emissions are thereby reduced based on the elevated temperature. The controller is configured to heat up the aftertreatment system to reach between one (1) and two (2) kilowatt hours (kWh) of enthalpy before two minutes at engine startup by (i) operating the internal combustion engine in cylinder deactivation mode (CDA); (ii) operating the internal combustion engine at an elevated idle speed; and (iii) operating the accessory device at a threshold power.

The invention discloses a gas engine cold start difficulty diagnosis method, system and device and a readable storage medium, and relates to the field of cold start fault detection, and the method specifically comprises the steps: determining an initial idle speed segment based on a real-time vehicle speed, a real-time engine rotation speed, a neutral gear signal and a clutch signal when the lowest environment temperature is detected to be smaller than a preset environment temperature threshold value; the initial idling segment is a working state when the vehicle is static and an engine is in an idling mode; in the initial idle speed segment, based on the maximum value of the engine rotating speed, the real-time engine rotating speed, the real-time gas rail pressure, the real-time gas rail temperature, the engine water temperature at the starting point of the initial idle speed segment, the real-time accelerator opening degree and the fault code, the cold start difficulty result of the gas engine is determined; the fault code is a corresponding fault code when the pressure of the intake manifold is smaller than a preset pressure threshold value of the intake manifold. According to the invention, specific faults of cold start difficulty can be identified efficiently and accurately.

Energy Management Device and Method for the Descent and Approach Phases of an Aircraft. The present invention proposes a method for establishing an effective energy dissipation strategy for the descent and approach phases of an aircraft, in the form of calculating an optimized descent and approach trajectory. This strategy aims to maximize the maintenance of idle speed while minimizing the use of airbrakes through more efficient decelerations. Figure for the abstract: Fig. 3

The utility model relates to the field of engines of automobiles or motorcycles, in particular to a self-locking structure, an automatic clutch engine and a motorcycle. The self-locking structure comprises an outer cover (11), a sliding sleeve (12) is connected to the outer cover (11) in a sliding mode, at least one set of pin holes (122) are formed in the sliding sleeve (12), pin hole sleeves (122c) are arranged outside the pin holes (122), centrifugal pins (122b) are arranged on the pin hole sleeves (122c), and the centrifugal pins (122b) are in sliding fit with the pin holes (122). Compared with the prior art, automatic locking and unlocking of the sliding sleeve and the shaft sleeve can be achieved only through small changes. When an engine is in an idling state or a low rotating speed state, automatic locking can be achieved, the sliding sleeve and the shaft sleeve are prevented from being forcibly clamped and damaged, the service life of the shaft sleeve and the sliding sleeve is prolonged through the design, the stability of equipment in the running process is improved, and the large actual popularization value is achieved.

This invention provides a fuel injection method for an engine, an engine, a vehicle, and a computer-readable storage medium, relating to the field of vehicle exhaust emission control technology. The fuel injection method provided by this invention includes the following steps: Before the engine reaches a stable idle speed, fuel is injected at a preset fuel pressure during the first intake stroke and the first compression stroke of each working cycle, wherein the fuel injection mass ratio of the first intake stroke to the first compression stroke is greater than 4:1, and the preset fuel pressure ranges from 20 to 50 MPa. When the engine speed is at a stable idle speed, fuel is injected during the second intake stroke and the second compression stroke of each working cycle at a preset fuel pressure, wherein the fuel injection mass ratio of the second intake stroke to the second compression stroke is greater than or equal to 4:1. This method ensures that the vehicle's exhaust emission level meets the requirements of Euro 6 emission standards without requiring a particulate filter, thus optimizing the engine's original emissions.

This application belongs to the field of aero-engine design and presents a design method for high-altitude starting fuel supply patterns based on the low-altitude starting fuel supply patterns. It involves first conducting high-altitude bench tests on the starter to obtain the power reduction characteristics of the starter at different altitudes. Then, based on the power balance equation, the acceleration time of the starter from rotor standstill to idle speed is determined. Finally, based on the acceleration time of the starter from rotor standstill to idle speed, the time allocation of the three starting stages of the starting process—starter engagement, starter disengagement, and engine starting—is performed to obtain the high-altitude starting fuel supply pattern. This method enables rapid and accurate design of the high-altitude fuel supply pattern, taking into account the engine's stability margin design in high-altitude areas, starter power characteristics, and the attenuation characteristics of starter power with increasing altitude, thus avoiding abnormal phenomena such as engine cold suspension and overheating. Furthermore, it can be based on ground starting data statistics, achieving better design compatibility and reducing debugging work.

This invention discloses a multi-objective optimization method for modifying the rear gear system of an engine using an attention-integrated mechanism, relating to the fields of engine NVH control and transmission system design technology. The method first constructs a multibody dynamics model of the engine's rear gear system, including idle speed, rated power point, and common operating speed conditions. The common operating speed conditions are selected as the global optimization benchmark, and a genetic algorithm is used to obtain the initial modification parameter combination. Then, an attention-integrated mechanism is introduced, dynamically and iteratively adjusting the weight coefficients of each operating condition based on the positive or negative state of the error improvement value, and performing a secondary verification of the initial modification parameters. If the weighted total improvement value after iteration is less than zero, negative screening is performed to eliminate the affected components. Finally, the optimization effect is verified by establishing a "dynamic force-vibration-noise" simulation chain. This invention effectively resolves the physical conflict between idling knocking and high-speed whistling by constructing a nonlinear decision model of "dynamic weight allocation + negative screening of operating conditions," achieving robust improvement in the NVH performance of the engine gear system across the entire operating range.

An energy-saving control method and apparatus for a battery electric vehicle, and a vehicle control unit, relating to the technical field of electric vehicles. The energy-saving control method comprises: when a vehicle is powered on, controlling a cooling fan and an electronic water pump to run at an idle speed for a target duration, and then stopping to perform a safety self-check; upon determining, on the basis of a water temperature signal, that a motor water temperature of a main drive motor has reached a minimum starting threshold of a motor cooling water circuit during a driving process of the vehicle, controlling the cooling fan to start, and adjusting operating speeds of the cooling fan and the electronic water pump on the basis of the motor water temperature. Controlling the cooling fan and the electronic water pump to run at an idle speed for a target duration and then stopping to perform a safety self-check, and then adjusting the operating speeds of the cooling fan and the electronic water pump on the basis of the water temperature of the motor, and thus ensuring the main drive motor and an all-in-one control unit run within a normal temperature range, solves the technical problems of complex operation and high costs in existing energy consumption reduction measures for battery electric vehicles, and improves the competitiveness of the vehicle market.

This invention relates to the field of accelerator technology for new energy vehicles, and discloses an idle speed anti-slip elastic positioning electronic accelerator pedal assembly, including a fixed base installed in the vehicle. An electronic control unit for intelligent control is disposed on the surface of the fixed base. A rotating shaft support is fixed to the surface of the fixed base, and a pedal arm is rotatably disposed on the surface of the rotating shaft support. A foot pedal surface is fixed to the surface of the pedal arm. In use, this invention employs a "lock-off when stationary, unlock-off when moving" control logic. Through active detection of the vehicle speed signal, the viscosity of the magnetorheological fluid increases when the vehicle speed is zero, applying locking damping to the pedal arm. This physically filters out minor interferences, avoiding unexpected starting problems when the vehicle is stationary, such as accidental touch by children, sensor signal jitter, or unintentional light touch by the driver. It can restrict the pedal arm at idle or stationary speeds, achieving the purpose of preventing idle speed slippage.

A vehicle control method and apparatus, relating to the field of electric vehicles, describes a method that, under engine idling speed, uses the speed signal collected by the generator resolver, combined with the engine ignition advance angle and the generator resolver angle, to determine the correspondence between the engine crankshaft angle and the generator resolver, generating a generator compensation torque phase waveform, and calculating the generator compensation torque based on the phase offset according to the delay calibration. Furthermore, with engine torque and generator speed fluctuations as the target, the generator compensation torque is adaptively optimized to obtain the final generator compensation torque. By applying the final compensation torque to the generator, the speed pulsation caused by the removal of the engine flywheel and torsional damper can be effectively reduced, thereby improving the overall vehicle NVH performance.

The present invention relates to an engine unit 21 and a saddle-ridden vehicle 1. The engine unit 21 comprises an engine 22, a motor 24, a first sensor 23, and a control portion 25. The motor 24 is connected to the engine 22. The motor 24 is configured to rotate the engine 22. The first sensor 23 detects a rotational speed G of the engine 22. The control portion 25 performs first assist control DA1 on the basis of the detection result of the first sensor 23. In the first assist control DA1, the control portion 25 causes the motor 24 to rotate the engine 22. When the rotational speed G is lower than a first threshold H1, the control portion 25 starts the first assist control DA1. The first threshold H1 is lower than an idle speed range J of the engine 22.

Embodiments of the present application disclose a control method and device, equipment and computer readable storage medium. The method comprises: detecting whether the vehicle demand power at the current time is greater than a preset power when the gear of the vehicle is in a non-running gear; if it is detected that the vehicle demand power at the current time is greater than the preset power, detecting whether the wheel end brake force at the current time is a preset idle speed wheel end brake force; and if it is detected that the wheel end brake force at the current time is the preset idle speed wheel end brake force, sending an instruction of increasing the target motor locked-rotor torque to the motor controller, so that the motor controller controls the target motor according to the instruction. The present application can control the instruction of increasing the target motor locked-rotor torque to be sent to the motor controller, so that the motor controller increases the locked-rotor torque of the target motor, reduces the gap between the driving gear of the target motor and other related gears, and thus reduces the probability of the gear knocking phenomenon caused by gear fluctuation.

The invention provides a vehicle braking method and a vehicle, and relates to the technical field of vehicle braking. The method comprises the steps that under the condition that a driver has a braking intention in a vehicle, the current vehicle speed of the vehicle is obtained; based on the current vehicle speed, a target braking strategy of the vehicle is determined, the target braking strategy is that a throttle valve of an engine in the vehicle is controlled to be closed, or the engine is controlled to output basic operation torque, and the basic operation torque is obtained based on the idle speed torque and the cruise torque of the engine; and controlling the vehicle to brake based on the target braking strategy. Based on the scheme, the use of brakes in the vehicle can be reduced.

Embodiments of the present application provide a kind of injection valve fault diagnosis method, device, equipment and storage medium, the method comprises: when vehicle is in preset state, the idle speed setting value and engine temperature of vehicle are acquired;The preset state includes: engine is empty load idle state, engine current no injection valve and oxygen sensor electric signal fault;According to the idle speed setting value and the engine temperature determine first speed threshold, second speed threshold and speed drop reference value;If the target injection valve quantity to be detected is one, then the drive signal of target injection valve is disconnected, and the detection minimum value of engine speed drop after the drive signal of target injection valve is disconnected is acquired;According to the detection minimum value, speed drop reference value, first speed threshold and second speed threshold, the fault diagnosis result corresponding to target injection valve is generated.The method of the present application embodiment can accurately locate injection valve fault, improves the diagnosis accuracy.

Method for operating a drive unit for a motor vehicle, wherein the drive unit has a drive unit and, when the drive unit is started, the actual speed of the drive unit is first set to an overshoot speed and subsequently to an idle speed of the drive unit, characterized in that the starting process includes towing the drive unit to a minimum speed, from which the drive unit automatically increases its actual speed up to the overshoot speed, wherein the overshoot speed and the idle speed are set to different values ​​in different operating modes of the drive unit.wherein the overshoot speed in a first of the operating modes is set to a first overshoot speed and in a second of the operating modes to a second overshoot speed different from the first overshoot speed, and wherein the idle speed in the first operating mode is set to a first idle speed and in the second operating mode to a second idle speed different from the first idle speed, wherein the second overshoot speed is chosen to be greater than the first overshoot speed by an overshoot speed difference and the second idle speed is chosen to be greater than the first idle speed by an idle speed difference, wherein the overshoot speed difference corresponds to the idle speed difference with a tolerance of at most 50%.

The invention provides a method and system for controlling a range extender, a medium and a product, and relates to the technical field of range extenders, the method is applied to a range-extended hybrid vehicle with the range extender, and the method comprises the steps that after a power clearing instruction of the range extender is received, the target torque of an engine is set to be zero; performing unauthorized control on the generator, setting the control mode of the generator as a rotating speed control mode, and dynamically adjusting the target rotating speed of the generator based on the bus electric signal of the output end of the generator controller in the rotating speed control mode; and in the process of implementing the unauthorized control, when the bus electric signal and the actual rotating speed of the engine meet a preset power clearing ending condition, the unauthorized control is ended, and the control mode of the generator controller is set to be an uncontrolled mode, so that the actual rotating speed of the engine is reduced to idle speed. According to the method, the control mode of the generator is adjusted according to the power clearing instruction, the target rotating speed of the generator is dynamically adjusted, and rapid power clearing of the range extender can be achieved.

The application discloses a control method of a vehicle emergency braking working condition, computer equipment and a vehicle, and relates to the technical field of engine control, wherein the control method comprises the following steps: determining that the vehicle enters the emergency braking working condition, increasing a preset idle speed of the engine to a first speed threshold, activating idle closed-loop control based on the current speed of the engine and the first speed threshold, obtaining an idle fire path torque under the emergency braking working condition based on the idle closed-loop control, and controlling the engine to output the idle fire path torque. The application can identify the emergency braking working condition of the vehicle, increase the preset idle speed of the engine to the first speed threshold, reduce the phenomenon that the load drag torque is large and the engine output torque is insufficient to meet the stable operation of the idle speed under the emergency braking working condition, reduce the probability of engine stall, and improve the user experience.

The utility model relates to a switch control device for an ignition system of engineering machinery and the ignition system comprising the switch control device. The ignition system comprises an ignition switch and a power switch, and the device comprises a pressure detection mechanism used for detecting the pressure value of at least one seat of the engineering machinery; the idle speed detection mechanism is used for detecting whether an engine of the engineering machinery is in an idle speed working condition or not; the first timer is configured to start timing based on detection results of the pressure detection mechanism and the idle speed detection mechanism; the first control loop is configured to turn off the ignition switch when the timing time of the first timer reaches a first duration; and the second control loop is configured to turn off the power switch when the timing time of the first timer reaches a second duration. The ignition control device can effectively prevent the problem of power shortage caused by continuous discharge of the storage battery in an unmanned use state, and avoids the trouble that the machine cannot be started for the second time due to the power shortage of the storage battery.

Information output device comprising: a detection unit (231) that detects a rotational speed of an engine (10) mounted in a vehicle (100); a storage unit (22) that stores historical information indicating a history of a state in which the rotational speed is lower than a rotational speed of the engine (10) at the time of idling; a memory control unit that causes the memory unit (22) to store the historical information; an output unit (234) which outputs the historical information stored in the storage unit (22); and a notification unit (233) that notifies that an exhaust pipe (20) of the vehicle (100) may be damaged if the past information meets a predetermined condition, wherein the notification unit (233) notifies a user that the exhaust pipe (20) of the vehicle (100) may be damaged when a cumulative time value in which the engine speed is lower than the idle speed in the past information read from the storage unit (22) exceeds a reference value.

The invention discloses a global tonnage modular electro-hydraulic decoupling hybrid power platform and a control method. The global tonnage modular electro-hydraulic decoupling hybrid power platform is suitable for 30-99 ton large hydraulic excavators. The system is composed of a power and transmission subsystem, an energy storage unit subsystem, a high-voltage electric drive subsystem and a low-voltage system subsystem. The flywheel end of the diesel engine is connected with the transfer case, the two-way driving main hydraulic pump and the ISG starting and generating all-in-one machine. Engine deep decoupling, independent electric driving walking and rotation, braking energy recovery, full-electric heat dissipation independent driving, DC-DC independent power supply, intelligent range extending energy complementing and electric transmission starting and stopping are achieved, a traditional hydraulic walking and rotation motor, a multi-way valve, a hydraulic heat dissipation pump and a motor are omitted, and a full-tonnage machine type is modularly adapted. The whole vehicle controller achieves multi-mode control and global energy scheduling, the comprehensive working condition fuel saving rate ranges from 25% to 35%, the high idle speed and transition fuel saving rate ranges from 35% to 45%, and the problems that existing hybrid power is large in coupling degree, heat dissipation depends on an engine and hydraulic pressure, energy is wasted, and global expansion cannot be achieved are solved.

The present invention relates to a method for restarting the internal combustion engine of a motor vehicle, in which the internal combustion engine is capable of being restarted according to a first, so-called autonomous restart mode when the instantaneous engine speed is above a first threshold (S1), and according to a second restart mode by driving a starting means when the instantaneous engine speed falls below a second threshold (S2). The method comprises the following successive steps: a shutdown command (E1) of the engine at a given instant; determination (E2) of the idle speed setpoint value at the instant of the engine shutdown command; and determination (E3) of the first and / or second threshold (S1, S2) as a function of said idle speed setpoint value at said instant of the shutdown command and an engine speed deviation. Figure 3

The invention discloses a motorcycle engine AMT (automated mechanical transmission) gear-shifting, cylinder-separating, fuel-cut and torque-reducing control method and system and a motorcycle, and the control method comprises the following steps: a gear-shifting and torque-reducing stage: detecting whether a whole vehicle sends a gear-shifting request, if so, entering a gear-shifting mode, determining a fuel-cut control strategy according to the current load and rotating speed of the engine, and starting a gear-shifting mode; controlling fuel cut-off of a cylinder of the engine according to the fuel cut-off control strategy; the fuel cut-off control strategy comprises the steps that if the engine is in the low-load working condition, fuel supply of the first air cylinder unit is cut off, and the second air cylinder unit is made to maintain basic power with the idling torque; if the engine is in the high-load working condition, fuel supply of the first air cylinder unit is cut off; then detecting whether the torque of the engine is reduced to a target value or not, if not, cutting off the fuel supply of the second cylinder unit when the engine enters the next working cycle, and recovering the fuel supply of the second cylinder unit after maintaining the fuel cut-off duration D; and in the gear shifting recovery stage, whether gear shifting is completed or not is detected, and if yes, fuel supply of the first air cylinder unit is recovered.

The application discloses an oil-electric hybrid forklift intelligent control method, system and equipment, comprising: obtaining the running state signal of the forklift, the signal at least including the parking brake state signal, the gear state signal, the multi-way valve operating device state signal, the running brake device state signal, the current working mode signal, the mast height signal, the power battery power signal and the forklift lifting weight signal; according to the running state signal and the preset control strategy, the working state of the engine and the motor is controlled to realize at least one function including the automatic start-stop function, the idle speed running function, the double working mode switching function and the mast lifting high position speed limiting and energy saving function. The scheme of the application significantly improves the comprehensive performance of the oil-electric hybrid forklift, avoids frequent start-stop of the engine, has the idle speed slow running, mast high position speed limiting and energy saving to the top function, improves the operation efficiency and safety, and gives consideration to high efficiency and environmental protection.

The invention relates to a method for operating an automatic transmission of a motor vehicle, in which the automatic transmission has at least one multi-plate shift element, wherein, when it is determined that a temperature (14) associated with the multi-plate shift element exceeds a first upper temperature threshold (T1), downshifts of the automatic transmission requested by means of the multi-plate shift element are prevented for a subsequent period of time and downshifts of the automatic transmission requested by means of the multi-plate shift element are carried out, and then, when it is determined that the temperature (14) associated with the multi-plate shift element exceeds a second upper temperature threshold (T2) higher than the first upper temperature threshold (T1), only such downshifts and downshifts of the automatic transmission to be carried out by means of the multi-plate shift element are executed.which are performed in a speed range close to idle speed, and all other downshifts and downshifts of the automatic transmission that are to be carried out by means of the multi-plate shift element are prevented.

The present application relates to the technical field of engine control, in particular to a judgment optimization method and device for residual exhaust gas causing gasoline engine idle speed jitter. Idle speed jitter information is collected and it is judged whether it meets the condition of gasoline engine idle speed jitter caused by combustion instability, if yes, it is judged whether the idle speed jitter is caused by residual exhaust gas according to the gasoline in-cylinder pressure characteristic curve and the maximum peak angle of explosion pressure, if yes, debugging is carried out by increasing the intake pressure of gasoline engine and synchronously retarding the ignition angle, and the optimization process is realized. The present application discriminates the type of idle speed jitter caused by combustion instability, analyzes the cylinder pressure characteristic curve, if the cylinder combustion speed of a gasoline cylinder presents the alternating phenomenon of "low-high-low-high", it can be judged that the residual exhaust gas amount is the key factor affecting the jitter, based on which debugging can be carried out by increasing the intake pressure and synchronously retarding the ignition angle, the judgment optimization method is simple, and the period of consumption is short.

The invention discloses a PI parameter scheduling method for improving engine torque control adaptability, and relates to the technical field of engine electric control. The method is technically characterized in that a basic proportional integral parameter mapping table is established by taking the target rotating speed and the actual load of the engine as core dimensions, all running scenes of the engine from idle speed to the highest rated rotating speed and from no load to full load are comprehensively covered, and the target rotating speed and the actual load of the engine are calculated by combining sub-scene calibration and environmental factor compensation correction of a cold engine stage and a hot engine stage. It is ensured that parameters can be accurately matched with dynamic differences such as frictional resistance of an engine, response characteristics of a supercharger and fuel oil atomization effects under different working conditions; and secondly, engine body working condition adaptation and real-time control state adaptation are separated through two-dimensional decoupling, smooth transition of parameters in the working condition switching process is achieved through a multi-stage collaborative algorithm of rough matching, fine interpolation, boundary correction and transition smoothing, and control unbalance caused by parameter sudden change is avoided.