256 results about "Idle speed" patented technology

The invention discloses a vehicle illegal driving detection method, device and equipment and a storage medium. The method comprises the following steps: acquiring real-time operation data of a to-be-detected vehicle and real-time positioning data of the to-be-detected vehicle; performing data preprocessing on the obtained real-time operation data and real-time positioning data of the to-be-detected vehicle to obtain standardized time sequence data of the to-be-detected vehicle; analyzing the standardized time sequence data of the to-be-detected vehicle according to a preset idle speed judgment rule and a preset oil pumping and leakage judgment rule, and judging whether the to-be-detected vehicle has an idle speed behavior or an oil pumping and leakage behavior or not; and carrying out violation confirmation on the to-be-detected vehicle with the idling behavior or the oil pumping and leakage behavior, and generating a vehicle violation brief report for the to-be-detected vehicle with the violation confirmation. According to the method, the standardized time sequence data are analyzed through the preset idle speed judgment rule and the preset oil pumping and leakage judgment rule, and the accuracy of illegal driving detection of the vehicle is effectively improved.

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.

The invention discloses a clutch mechanism and an unmanned aerial vehicle. The clutch mechanism comprises a shell; the connecting piece is arranged in the shell and used for being connected with an engine; the first rotor is provided with an inner cavity, and the first rotor is rotationally arranged in the shell and used for being connected with the paddle seat; the second rotor is located in the inner cavity of the first rotor and comprises a base and a plurality of friction plates, the base is connected with the connecting piece, the first ends of the friction plates are movably connected with the base, the second ends are provided with elastic pieces, the elastic pieces are used for making the second ends away from the inner wall of the first rotor, and the second ends can be attached to the inner wall of the first rotor to make the first rotor rotate. By means of the structure, power transmission is kept, and meanwhile it is ensured that the propellers can be kept static in the low-speed and idle-speed states and cannot interfere with a launcher.

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 relates to an engine low-pressure starting control method in a high-pressure oil pump fault mode, which is used for controlling the opening degree of a throttle valve and comprises the following steps of: calculating starting idle speed air quantity according to starting compensation air quantity and cooling machine compensation air quantity; the idle speed demand torque is calculated by multiplying the torque conversion coefficient of the air quantity; calculating an engine starting torque by adding an engine friction torque; calculating an expected throttle flow by multiplying the flow conversion coefficient of the torque; the initial throttle opening degree is obtained; the opening degree of the starting throttle valve is obtained according to the initial throttle valve opening degree and the opening degree of the starting throttle valve in the low-pressure mode; an oil injection mode is controlled, and a primary oil injection pulse represents a number-letter combination code through an index; and normalizing a letter part in the numeric-letter combination code by using binary numbers to generate a binary number code. Compared with the prior art, the engine is started in the fault mode, and limp home is achieved.

The invention provides a constant-power pump operation regeneration flow control method, system and equipment and a storage medium, and belongs to the field of engineering equipment power control. The constant-power pump operation regeneration flow control method comprises the steps that in response to operation equipment entering an operation regeneration state and meeting an operation regeneration rotating speed increasing working condition, flow adjustment is conducted on a constant-power pump, so that the flow of the constant-power pump is kept constant in the engine rotating speed increasing process; if the driver set rotating speed is smaller than or equal to the preset idle speed, the pump flow adjusting value is calculated through the pump torque, the pump pressure and the driver set rotating speed; if the driver set rotating speed is larger than the preset idle speed, the pump flow adjusting value is calculated through the current engine rotating speed. According to the operation regeneration flow control method, in the operation regeneration process, through the thought of constant flow control, power limitation adjustment on the constant-power pump is calculated, finally, the pump displacement is reduced, the hoisting speed is not suddenly changed, and the whole vehicle operation efficiency is guaranteed.

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.

Embodiments of the present application disclose a control method, device, equipment, and computer-readable storage medium. The method includes: when it is detected that the throttle pedal opening at the current moment is less than the preset opening, detecting whether the engine speed at the current moment is greater than the preset idle speed and detecting whether the generator is in a working state; if it is detected that the engine speed at the current moment is greater than the preset idle speed and the generator is in a working state, closing the throttle valve according to a first preset speed and controlling the engine to drive the generator to generate electricity until the engine speed is equal to the preset idle speed. The present application slowly closes the throttle valve according to the first preset speed, so that the gas pressure after the compressor of the turbocharger slowly decreases, avoiding the occurrence of supercharger surge, and controlling the engine to drive the generator to generate electricity, enabling the generator to absorb the residual power of the engine and improving the energy utilization efficiency of the engine.

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.

The technical scheme belongs to the technical field of automobile driven disc assemblies, and particularly relates to a built-in idling driven disc device which comprises an idling module used for being connected with a power source; the driven disc module is arranged on the idle speed module and can move along with the idle speed module; the idling module comprises a connecting part, a first connecting part, a second connecting part, a third connecting part, a fourth connecting part and a fourth connecting part, the transmission part is movably clamped outside the connecting part and can move along with the connecting part; the at least one idle speed spring is arranged between the connecting part and the transmission part and movably abuts against the connecting part and the transmission part at the same time; wherein the connecting part pushes the transmission part to move through the idling spring; at least one mounting groove I is concavely formed in the peripheral side of the connecting part, at least one mounting groove II is concavely formed in the inner side of the transmission part, the mounting groove I and the mounting groove II are matched to form a mounting position, and the idle spring is arranged in the mounting position.

An embodiment of the present invention provides a method and a device for allocating battery power during the idle speed of a fuel cell vehicle, relating to the technical field of new energy vehicles. The method includes: for a fuel cell vehicle, obtaining the state of charge of a power battery monitored by a vehicle control unit disposed in the fuel cell vehicle; when the fuel cell vehicle is in an idle speed working condition, formulating a relevant power allocation control strategy for the fuel cell and the power battery. In the formulated relevant power allocation control strategy for the fuel cell and the power battery, it is possible to determine according to the state of charge of the power battery: whether to use the power battery to allocate the fuel cell for power output, and the method for using the power battery to allocate the fuel cell for power output; managing the energy output of the fuel cell according to the power allocation control strategy, reducing the load of the fuel cell, preventing the fuel cell membrane from drying due to insufficient generation amount of reaction water, and improving the performance of the fuel cell.

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.

A control device, for a vehicle, include a determination unit configured to determine whether or not a traveling mode of the vehicle equipped with an engine as a traveling power source is switched to a circuit mode, and a switching unit configured to switch a target idle speed to a higher speed when the determination unit makes an affirmative determination than when the determination unit makes a negative determination.

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.

The invention discloses a vehicle low-temperature starting method based on electric energy distribution, which comprises the following steps: when a vehicle reaches a starting gear, determining the current real-time battery electric quantity percentage and judging the starting temperature, and if the starting temperature is lower than a temperature threshold, determining whether to start the vehicle according to the real-time battery electric quantity percentage; if it is determined that the vehicle is started, the first preheating time of a preheating grid before the engine is started is determined, or the second preheating time of the preheating grid before the engine is started and the third preheating time of a boiler are determined; controlling the first preheating time of intake preheating of the preheating grid, or controlling the second preheating time of intake preheating of the preheating grid and the third preheating time of boiler preheating; and after the preheating time is up, a starting motor relay is closed to start dragging the engine, and the vehicle is successfully started at low temperature after the rotating speed of the engine reaches the idle speed. According to the invention, the starting reliability of the vehicle in a low-temperature environment is obviously improved, the problem of starting difficulty caused by low temperature is reduced, the user experience is improved, and the normal use of the vehicle is ensured.

The present disclosure relates to a fixed displacement pump hydraulic system for a crane, a control method thereof, and a crane. The fixed displacement pump hydraulic system includes a first fixed displacement pump, a second fixed displacement pump, and an engine for driving the first and second fixed displacement pumps. The first fixed displacement pump provides pressurized oil to a working mechanism via a first hydraulic oil circuit, and the second fixed displacement pump provides pressurized oil to a working mechanism via a second hydraulic oil circuit. The fixed displacement pump hydraulic system also includes a control device configured to: when the crane is operating in a rated load idle state and the engine speed is less than the idle speed, unload the pressure in the first hydraulic oil circuit to shut off the first fixed displacement pump; and when the engine speed is equal to or greater than the idle speed, gradually increase the pressure in the first hydraulic oil circuit until the first fixed displacement pump reaches normal operation. By unloading the pressure in the first hydraulic oil circuit, the pressure in the hydraulic system can be reduced, thereby reducing the required engine output torque and preventing engine stall.

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.