Loader operation control method, system and equipment and storage medium

Abstract

The invention discloses a loader operation control method, system and device and a storage medium, and relates to the field of engineering machinery, the method comprises the following steps: collecting operation data of a loader in a historical operation period, and obtaining battery residual electric quantity and engine post-processing system state parameters in real time; calculating the average power of a plurality of operation periods according to the operation data; determining operation parameters of the range extender according to the average power and the current battery remaining capacity; determining an operation condition curve according to the state parameters of the engine post-processing system; and the loader is controlled to operate according to the operating parameters of the range extender and the operating condition curve, and the operating parameters of the range extender are monitored in real time and dynamically adjusted, so that the system can prevent an engine from operating under an unsuitable working condition, and carbon deposition and faults of a post-processing system are reduced. By optimizing the power output and the operation working condition of the range extender, the system can ensure that the loader can efficiently operate under different electric quantities and working conditions.

Description

Technical Field

[0001] The present invention relates to the field of construction machinery, and particularly to a method, a system, a device and a storage medium for controlling the operation of a loader. Background Art

[0002] The operating scenarios of loaders are complex and changeable, and the working conditions faced are diverse. Under different working conditions, the equipment frequently performs various operations, resulting in a significant increase in the charge and discharge times of the battery. Moreover, the switching of working conditions is often very drastic, and the equipment needs to adapt to different operating intensities and modes in a short time, which causes large fluctuations in the load of the engine and makes it difficult to maintain the fuel combustion efficiency at the optimal state, thereby resulting in unsatisfactory fuel consumption performance and a large gap from the ideal situation. Summary of the Invention

[0003] The main object of the present invention is to provide a method, a system, a device and a storage medium for controlling the operation of a loader. By monitoring the operating parameters of the range extender in real time and dynamically adjusting them, the system can avoid the engine from operating under unsuitable working conditions and reduce carbon deposition and failures of the aftertreatment system. By optimizing the power output and operating conditions of the range extender, the system can ensure that the loader can operate efficiently under different battery levels and working conditions.

[0004] To achieve the above object, the embodiments of the present application provide the following technical solutions:

[0005] According to the first aspect of the embodiments of the present application, a method for controlling the operation of a loader is provided, and the method includes:

[0006] Collect the operation data of the historical operation cycles of the loader, and obtain the remaining battery power and the state parameters of the engine aftertreatment system in real time;

[0007] Calculate the average power of several operation cycles according to the operation data;

[0008] Determine the operation parameters of the range extender according to the average power and the current remaining battery power;

[0009] Determine the operation condition curve according to the state parameters of the engine aftertreatment system;

[0010] Control the operation of the loader according to the operation parameters of the range extender and the operation condition curve.

[0011] Optionally, determining the operation parameters of the range extender according to the average power and the current remaining battery power includes:

[0012] Judge the current battery state in which the current remaining battery power is located according to a preset power threshold interval; the preset power threshold interval is divided according to a preset power threshold;

[0013] Determine the operating parameters of the range extender according to the average power and the current power state; the operating parameters include an operating mode and / or an output power value.

[0014] Optionally, if the preset power threshold interval is in the first interval, the determining the operating parameters of the range extender according to the average power and the current power state includes:

[0015] If the average power is greater than or equal to a first preset power threshold, the output power value of the range extender is determined to be the average power;

[0016] If the average power is less than the first preset power threshold, the operating mode of the range extender is determined to be the pure electric mode.

[0017] Optionally, if the preset power threshold interval is in the second interval, the determining the operating parameters of the range extender according to the average power and the current power state includes:

[0018] If the average power is greater than or equal to the first preset power threshold, the output power value of the range extender is determined to be the average power;

[0019] If the average power is less than the first preset power threshold, the output power value of the range extender is determined to be the first preset power threshold.

[0020] Optionally, if the preset power threshold interval is in the third interval, the determining the operating parameters of the range extender according to the average power and the current power state includes:

[0021] If the average power is greater than or equal to a second preset power threshold, the output power value of the range extender is determined to be the sum of the average power and a preset power increment;

[0022] If the average power is less than the second preset power threshold, the output power value of the range extender is determined to be the larger value between the average power and the preset power increment.

[0023] Optionally, the engine after-treatment system state parameters include the selective catalytic reduction after-treatment temperature and the carbon loading; the determining the operating condition curve according to the engine after-treatment system state parameters includes:

[0024] If the selective catalytic reduction after-treatment temperature is less than or equal to a set temperature threshold, the operating condition curve is a first operating condition curve, and the first operating condition curve represents that the nitrogen oxide emissions are within a set low emission range;

[0025] If the selective catalytic reduction post-treatment temperature is greater than the set temperature threshold and the carbon loading is less than or equal to the set carbon loading threshold, the operating condition curve is the second operating condition curve, and the second operating condition curve indicates that the fuel consumption is within the set fuel consumption range;

[0026] If the selective catalytic reduction post-treatment temperature is greater than the set temperature threshold and the carbon loading is greater than the set carbon loading threshold, the operating condition curve is the third operating condition curve, and the third operating condition curve indicates that the exhaust gas temperature is within the set high temperature range and the nitrogen oxide emissions are within the set high emission range.

[0027] Optionally, the operating data of the loader's historical operation cycles includes vehicle speed, working mode, and motor torque; calculating the average power of several operation cycles based on the operating data includes:

[0028] Identifying several working stages in several operation cycles of the loader based on the operating data;

[0029] For each operation cycle, calculating the sum of the power consumptions of each working stage within the operation cycle as the total power consumption of the operation cycle;

[0030] Accumulating the total power consumptions of several operation cycles to obtain the total power consumption of several operation cycles;

[0031] Obtaining the total time of several operation cycles based on the accumulated value of the start to end time of all operation cycles;

[0032] Calculating the average power of several operation cycles by dividing the total power consumption of several operation cycles by the total time of several operation cycles.

[0033] According to the second aspect of the embodiments of the present application, a loader operation control system is provided, and the system includes:

[0034] A data monitoring module for collecting the operating data of the loader's historical operation cycles and obtaining the remaining battery power and the state parameters of the engine post-treatment system in real time;

[0035] An average power calculation module for calculating the average power of several operation cycles based on the operating data;

[0036] An operating parameter determination module for determining the operating parameters of the range extender based on the average power and the current remaining battery power;

[0037] An operating condition curve determination module for determining the operating condition curve based on the state parameters of the engine post-treatment system;

[0038] An operation control module for controlling the operation of the loader based on the operating parameters of the range extender and the operating condition curve.

[0039] According to a third aspect of the embodiments of the present application, an electronic device is provided, including: a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor runs the computer program, it is configured to implement the method described in the first aspect above.

[0040] According to a fourth aspect of the embodiments of the present application, a computer-readable storage medium is provided, on which computer-readable instructions are stored. The computer-readable instructions can be executed by a processor to implement the method described in the first aspect above.

[0041] In summary, the embodiments of the present application provide a loader operation control method, system, device, and storage medium. By collecting the operation data of the loader's historical operation cycles, the remaining battery power and the status parameters of the engine aftertreatment system are obtained in real time; the average power of several operation cycles is calculated according to the operation data; the operation parameters of the range extender are determined according to the average power and the current remaining battery power; the operation condition curve is determined according to the status parameters of the engine aftertreatment system; the loader operation is controlled according to the operation parameters of the range extender and the operation condition curve. By real-time monitoring and dynamically adjusting the operation parameters of the range extender, the system can avoid the engine running under unsuitable conditions, reduce carbon deposition and faults of the aftertreatment system. By optimizing the power output and operation conditions of the range extender, the system can ensure that the loader can operate efficiently under different battery levels and working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0043] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0044] Figure 1 It is a schematic flowchart of a loader operation control method provided by the embodiments of the present application;

[0045] Figure 2 It is a schematic diagram of the operation condition curve provided by the embodiments of the present application;

[0046] Figure 3 Schematic diagram of the loader operation control system provided by the embodiment of the present application;

[0047] Figure 4 Shows the structural diagram of an electronic device provided by the embodiment of the present application;

[0048] Figure 5 Shows the diagram of a computer-readable storage medium provided by the embodiment of the present application.

[0049] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0051] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0052] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0053] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0054] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0055] Figure 1 The figure shows a loader operation control method provided by an embodiment of the present application. The method includes:

[0056] Step 101: Collect operation data of the loader's historical operation cycles, and obtain the remaining battery power and the status parameters of the engine aftertreatment system in real time;

[0057] Step 102: Calculate the average power of several operation cycles according to the operation data;

[0058] Step 103: Determine the operation parameters of the range extender according to the average power and the current remaining battery power;

[0059] Step 104: Determine the operation condition curve according to the status parameters of the engine aftertreatment system;

[0060] Step 105: Control the operation of the loader according to the operation parameters of the range extender and the operation condition curve.

[0061] In a possible implementation manner, the operation data of the loader's historical operation cycles includes vehicle speed, working mode, and motor torque. In step 102, the calculating the average power of several operation cycles according to the operation data includes:

[0062] Identify several working stages in several operation cycles of the loader according to the operation data; for each operation cycle, calculate the sum of the power consumptions of each working stage within the operation cycle as the total power consumption of the operation cycle; accumulate the total power consumptions of several operation cycles to obtain the total power consumption of several operation cycles; obtain the total time of several operation cycles according to the accumulated value of the start to end time of all operation cycles; and obtain the average power of several operation cycles by dividing the total power consumption of several operation cycles by the total time of several operation cycles.

[0063] By collecting and analyzing detailed data on the historical operation cycles of the loader (including vehicle speed, working mode, and motor torque), the system can accurately identify different working stages in each operation cycle (such as starting, loading, transporting, unloading, etc.) and calculate the power consumption at each stage. This helps to more accurately calculate the total power consumption and total time of several operation cycles, thereby obtaining the average power. This precise calculation can provide a more scientific basis for the power output of the range extender, ensuring efficient operation under different working conditions. Based on the calculated average power, the system can dynamically adjust the operating parameters of the range extender according to the current remaining battery charge (SOC) and the status parameters of the engine aftertreatment system. By precisely calculating the average power, the system can better match the power output of the range extender with the actual operation requirements, reducing operation interruptions and equipment failures caused by insufficient or excessive power. This helps to improve the overall operation efficiency and extend the service life of the equipment.

[0064] In a possible implementation manner, in step 103, determining the operating parameters of the range extender according to the average power and the current remaining battery charge includes:

[0065] Judging the current power state of the current remaining battery charge according to a preset power threshold interval; the preset power threshold interval is divided according to a preset power threshold; determining the operating parameters of the range extender according to the average power and the current power state; the operating parameters include an operating mode and / or an output power value.

[0066] In a possible implementation manner, if the preset power threshold interval is in the first interval, the determining the operating parameters of the range extender according to the average power and the current power state includes:

[0067] If the average power is greater than or equal to a first preset power threshold, the output power value of the range extender is determined to be the average power; if the average power is less than the first preset power threshold, the operating mode of the range extender is determined to be the pure electric mode.

[0068] In a possible implementation manner, if the preset power threshold interval is in the second interval, the determining the operating parameters of the range extender according to the average power and the current power state includes:

[0069] If the average power is greater than or equal to the first preset power threshold, the output power value of the range extender is determined to be the average power; if the average power is less than the first preset power threshold, the output power value of the range extender is determined to be the first preset power threshold.

[0070] In a possible implementation manner, if the preset power threshold interval is in the third interval, the determining the operating parameters of the range extender according to the average power and the current power state includes:

[0071] If the average power is greater than or equal to the second preset power threshold, the output power value of the range extender is determined as the sum of the average power and the preset power increment; if the average power is less than the second preset power threshold, the output power value of the range extender is determined as the larger value between the average power and the preset power increment.

[0072] By dynamically adjusting the operating parameters of the range extender (including the operating mode and the output power value) according to the remaining battery charge (SOC) and the average power, it is ensured that the range extender can provide an appropriate power output under different power states, while meeting the operation requirements, improving fuel economy and reducing emissions. By precisely adjusting the operating parameters of the range extender, the system can better match the power output of the range extender with the actual operation requirements, reduce operation interruptions and equipment failures caused by insufficient or excessive power, improve the overall operation efficiency, and extend the service life of the equipment. By presetting the power threshold range, the system can select different operating strategies according to the range where the current remaining battery charge is located, ensuring efficient operation under different power states. Especially when the power is low, it can quickly charge to maintain the normal operation of the equipment. Through this precise calculation and dynamic adjustment strategy, the loader can operate efficiently and economically under different working conditions, while meeting environmental protection requirements and extending the service life of the equipment.

[0073] In a possible implementation manner, the engine aftertreatment system state parameters include the selective catalytic reduction aftertreatment temperature and the carbon loading; in step 104, the determining the operating condition curve according to the engine aftertreatment system state parameters includes:

[0074] 1. If the selective catalytic reduction aftertreatment temperature is less than or equal to the set temperature threshold, the operating condition curve is the first operating condition curve, and the first operating condition curve represents that the nitrogen oxide emissions are within the set low emission range;

[0075] 2. If the selective catalytic reduction aftertreatment temperature is greater than the set temperature threshold and the carbon loading is less than or equal to the set carbon loading threshold, the operating condition curve is the second operating condition curve, and the second operating condition curve represents that the fuel consumption is within the set fuel consumption range;

[0076] 3. If the selective catalytic reduction aftertreatment temperature is greater than the set temperature threshold and the carbon loading is greater than the set carbon loading threshold, the operating condition curve is the third operating condition curve, and the third operating condition curve represents that the exhaust gas temperature is within the set high temperature range and the nitrogen oxide emissions are within the set high emission range.

[0077] By monitoring the status parameters of the engine after-treatment system (selective catalytic reduction after-treatment temperature and carbon loading), the system can select an appropriate operating condition curve based on these parameters to ensure effective control of nitrogen oxide (NOx) and particulate matter (PM) emissions under different operating conditions and meet strict environmental protection standards. By selecting an appropriate operating condition curve, the system can optimize fuel consumption, reduce unnecessary fuel waste, and lower operating costs while ensuring compliance with emission standards. By avoiding the engine operating under unsuitable conditions, carbon deposition and faults in the after-treatment system can be reduced, and the service life of the equipment can be extended.

[0078] In summary, through precise calculation of the average power and dynamic adjustment of the operating parameters of the range extender, the system can achieve efficient utilization of fuel under different operating conditions. For example, when the battery power is sufficient, the pure electric mode is preferentially used, and when the power is insufficient, the output power of the range extender is reasonably adjusted to ensure that the fuel consumption is within the optimal range. This not only reduces fuel consumption but also lowers operating costs. By selecting an appropriate operating condition curve according to the status parameters of the engine after-treatment system, the system can effectively control NOx and PM emissions under different operating conditions.

[0079] For example, when the SCR after-treatment temperature is low, the L1 operating condition is selected to ensure that NOx emissions are within the low-emission range; when the carbon loading is high, the L3 operating condition is selected to increase the passive regeneration rate, reduce carbon deposition, and ensure compliance with environmental protection standards. By real-time monitoring and dynamic adjustment of the operating parameters of the range extender, the system can avoid the engine operating under unsuitable conditions, reduce carbon deposition and faults in the after-treatment system. For example, when the carbon loading is high, the L3 operating condition is selected to increase the exhaust gas temperature, eliminate carbon as soon as possible, delay the triggering moment of active regeneration, reduce the maintenance cost of the after-treatment system, and extend the service life of the equipment. By optimizing the power output and operating conditions of the range extender, the system can ensure that the loader can operate efficiently under different battery powers and operating conditions. For example, when the battery power is low, the range extender can quickly charge to ensure continuous operation of the equipment; when the operating conditions change, the system can real-time adjust the operating parameters, reduce operation interruptions caused by mismatched operating conditions, and improve the overall operation efficiency.

[0080] The following will introduce in detail how the loader intelligently adjusts its power output and operating conditions during different operation stages to optimize fuel consumption, emissions, and battery management.

[0081] The first stage: work cycle judgment and average power calculation.

[0082] The operations of a loader usually include stages such as starting and moving forward, loading, transporting, unloading, and reversing back to the starting point. These stages constitute a complete work cycle. The computer of the loader calculates how much electricity (or fuel) is consumed on average per cycle, that is, the average power P. Work cycle judgment is carried out according to the operating characteristics of the loader, including starting and moving forward, loading, transporting, unloading, and reversing back to the starting point, and the average power P is calculated based on the current n cycles; if a complete cycle is not completed within time t, the average power P is calculated according to time t. The system calculates the average power P according to the current number of cycles, that is, the power consumed per unit time on average by the loader when completing this cycle.

[0083] The work cycle specifically includes the following five parts:

[0084] 1. Accelerate from a standstill, and the vehicle speed increases from 0 to greater than 0. If the vehicle speed of the loader increases from 0 to greater than 0 starting from a stationary state, it is recognized as the starting and moving forward stage;

[0085] 2. Decelerate to a stop when the lifting motor needs to work (torque is greater than 0): the torque of the lifting motor is greater than 0, and then decelerate until the vehicle speed is 0. If the torque of the loader's motor is greater than 0 and the vehicle speed gradually decelerates to 0, it is recognized as the loading stage;

[0086] 3. Repeat acceleration and deceleration, while the lifting motor continues to work: the vehicle speed increases from 0 to greater than 0 and then returns to 0, during which the lifting motor continuously outputs torque. If the lifting motor continuously outputs torque during the period when the vehicle speed of the loader increases from 0 to greater than 0 and then returns to 0, it is recognized as the transporting stage;

[0087] 4. In a stationary state, the torque of the lifting motor gradually decreases to 0: the vehicle speed is 0, and the torque of the lifting motor decreases to 0. If the loader unloads the material and the torque of the motor decreases to 0 when the vehicle speed is 0, it is recognized as the unloading stage;

[0088] 5. The motor rotates in the reverse direction, accelerates from a standstill to a moving state again, and then decelerates to a stop: the motor speed is negative, the vehicle speed increases from 0 to greater than 0 and then returns to 0. If the loader reverses back to the starting position after unloading, and the vehicle speed increases from 0 to greater than 0 and then returns to 0 when the motor speed is negative, it is recognized as the reversing back to the starting point stage.

[0089] The second stage: Selection of power output value.

[0090] As a power generation system for range-extended electric vehicles, the range extender can achieve different operating modes under different SOC values by combining factors such as the overall vehicle power demand and different SOC values of the power battery. Among them, SOC is an indicator to measure the battery charge state, which represents the ratio of the remaining battery capacity to its rated capacity, usually expressed as a percentage. Figure 2The fuel consumption lines and high-altitude wiring under different working conditions are shown, where L1, L2, and L3 represent different high-altitude wiring respectively, while P1 and P2 represent different power levels.

[0091] Select the power output of the range extender (an auxiliary power device that can provide additional power when the battery power is insufficient) according to the remaining battery power. Specifically, the following several schemes are included:

[0092] 1. When the battery power (SOC) is greater than a certain threshold: SOC > S1 (for example, 70%): The range extender outputs at an average power P.

[0093] If P < P1 ( Figure 2 where the fuel consumption below P1 is shown to be poor in ), the engine shuts down and switches to pure electric mode. In this way, when the power demand is large with sufficient power, it outputs according to the demand power; if the demand power is small, to ensure economy, it runs in pure electric mode.

[0094] 2. When the battery power is between two thresholds: When S2 (for example, 30%) < SOC < S1: The range extender outputs at an average power P. If P < P1, then it outputs P1.

[0095] At this time, the SOC is in an intermediate state, and the power balance is maintained as much as possible without using the pure electric mode. If the working demand is low, the engine efficiency can be improved by increasing the power output above P1, and the excess power is used to charge the battery.

[0096] 3. When the battery power is less than the threshold: When SOC < S2: The range extender outputs at an average power P + Δp (for example, 20 kW).

[0097] If P < P2 (for example, 10% larger than P1), then the larger value between P2 and P + Δp is output. This is because at this time the battery SOC is at a low level, and the battery needs to be charged as soon as possible to keep the SOC in the intermediate state to reserve power for high-power output.

[0098] When the power demand is large, the system outputs according to the demand power; if the demand power is small, to ensure economy, it runs in pure electric mode. The excess power generated by the range extender is used to charge the battery to maintain the power balance.

[0099] The third stage: Selection of the operating condition curve.

[0100] The SCR system of the loader's engine is used to reduce harmful gas emissions. After determining the power output, the system will select the specific operating conditions according to the post-treatment temperature of the engine's SCR (Selective Catalytic Reduction) and the carbon loading status, etc.:

[0101] 1. When the SCR post-treatment temperature is lower than a certain threshold: When the SCR temperature < T (e.g., 200 °C), it operates in L1 (a working condition with lower NOx emissions) to avoid exceeding the emission standard. The operating condition is the intersection of the selected power line and L1.

[0102] 2. When the SCR post-treatment temperature is higher than T: When the SCR temperature > T:

[0103] ① If the carbon loading > m (e.g., 60% of the regeneration carbon loading), it operates in L3 working condition (higher exhaust temperature, higher NOx emissions) to increase the passive regeneration rate, eliminate carbon as soon as possible, and delay the trigger time of active regeneration.

[0104] ② If the carbon loading < m, it operates in L2 working condition (best economy) with the goal of optimal economy.

[0105] If the temperature of the SCR system is lower than 200 degrees, the loader will select a working state (L1) with less emissions. If the temperature of the SCR system is higher than 200 degrees, the loader will select a working state according to the carbon loading (the amount of carbon accumulation in the engine). If the carbon loading is high, the loader will select a working state (L3) with a higher temperature and more emissions, so as to remove carbon deposits faster. If the carbon loading is low, the loader will select a working state (L2) that is the most fuel-efficient.

[0106] During the operation of the loader, due to the diversity and frequent changes of working conditions, the charge and discharge times of the battery increase accordingly, which has a significant impact on fuel consumption. Figure 2 In the figure, between the high-altitude wiring L3 and L2, the fuel consumption line shows the fuel consumption at different power levels. When the power demand is low, the fuel consumption performance is poor because the fuel burns incompletely when the engine operates at low load, resulting in a decrease in energy conversion efficiency. As the power demand increases, the fuel consumption gradually decreases until it reaches a relatively economical operating range.

[0107] The L1 working condition curve usually corresponds to a low-emission operation mode. In this working condition, the loader operates at a lower NOx emission level to meet environmental protection requirements. This mode may be used in environmentally sensitive areas or under specific regulatory requirements to reduce the impact on the environment. The L1 working condition curve may be associated with lower engine speeds and loads to optimize emission control and keep the engine operating in the clean combustion area.

[0108] The L2 operating condition curve represents the economic operation mode, aiming to achieve the best fuel efficiency. This operating condition curve reduces fuel consumption by optimizing the operating parameters of the engine, such as speed, load, and fuel supply, while maintaining sufficient power output. Under the L2 operating condition, the loader may operate in the high-efficiency region of the engine to achieve the best fuel economy. This mode is suitable for operating conditions where the load changes little and long-term stable operation is required.

[0109] The L3 operating condition curve is usually used for operating conditions with high power requirements, such as heavy-duty operations or situations that require quick response. Under this operating condition, the loader may operate at a higher engine speed and load to provide the maximum power output. The L3 operating condition curve may be associated with higher NOx emissions and fuel consumption, but this mode can provide the necessary power support when quick completion of job tasks is needed. In addition, the L3 operating condition curve may also involve a fast charging strategy to quickly restore the battery power and reserve energy for subsequent high power requirements.

[0110] L1, L2, and L3 are all preset operating condition curves. Through these curves, the loader can maintain a steady-state operating condition during operation, improve economy, reduce battery charge and discharge, reduce energy loss, and take into account emissions, carbon deposition, and fuel consumption at the same time.

[0111] In summary, the embodiment of the present application provides a method for controlling the operation of a loader. By collecting the operation data of the historical operation cycle of the loader, the remaining battery power and the state parameters of the engine after-treatment system are obtained in real time; the average power of several operation cycles is calculated according to the operation data; the operation parameters of the range extender are determined according to the average power and the current remaining battery power; the operating condition curve is determined according to the state parameters of the engine after-treatment system; the operation of the loader is controlled according to the operation parameters of the range extender and the operating condition curve. By real-time monitoring and dynamically adjusting the operation parameters of the range extender, the system can avoid the engine from operating under unsuitable operating conditions, reduce carbon deposition and the failure of the after-treatment system. By optimizing the power output and operating conditions of the range extender, the system can ensure that the loader can operate efficiently under different battery powers and operating conditions.

[0112] Based on the same technical concept, the embodiment of the present application also provides a loader operation control system, as Figure 3 shown, the system includes:

[0113] A data monitoring module 301, configured to collect the operation data of the historical operation cycle of the loader, and obtain the remaining battery power and the state parameters of the engine after-treatment system in real time;

[0114] An average power calculation module 302, configured to calculate the average power of several operation cycles according to the operation data;

[0115] An operating parameter determination module 303, configured to determine the operating parameters of the range extender according to the average power and the current remaining battery power;

[0116] An operating condition curve determination module 304, configured to determine an operating condition curve according to the state parameters of the engine aftertreatment system;

[0117] An operating control module 305, configured to control the operation of the loader according to the operating parameters of the range extender and the operating condition curve.

[0118] An embodiment of the present application further provides an electronic device corresponding to the method provided in the foregoing embodiment. Please refer to Figure 4 , which shows a diagram of an electronic device provided in some embodiments of the present application. The electronic device 20 may include: a processor 200, a memory 201, a bus 202, and a communication interface 203. The processor 200, the communication interface 203, and the memory 201 are connected through the bus 202; a computer program that can run on the processor 200 is stored in the memory 201, and when the processor 200 runs the computer program, it executes the method provided in any of the foregoing embodiments of the present application.

[0119] Among them, the memory 201 may include a high-speed random access memory (RAM: Random Access Memory), and may also include a non-volatile memory, such as at least one disk memory. The communication connection between the system network element and at least one other network element is realized through at least one physical port (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. can be used.

[0120] The bus 202 may be an ISA bus, a PCI bus, an EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. Among them, the memory 201 is used to store a program, and after the processor 200 receives an execution instruction, it executes the program. The method disclosed in any of the foregoing embodiments of the present application can be applied to the processor 200 or implemented by the processor 200.

[0121] The processor 200 may be an integrated circuit chip with the ability to process signals. In the implementation process, each step of the above method may be completed by the integrated logic circuit of the hardware in the processor 200 or the instructions in the form of software. The above-mentioned processor 200 may be a general-purpose processor, including a central processing unit (CPU for short), a network processor (NP for short), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as being executed and completed by the hardware decoding processor, or executed and completed by a combination of the hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory 201, and the processor 200 reads the information in the memory 201 and combines its hardware to complete the steps of the above method.

[0122] The electronic device provided in the embodiments of the present application and the method provided in the embodiments of the present application are based on the same inventive concept and have the same beneficial effects as the method adopted, run or implemented by it.

[0123] The embodiments of the present application also provide a computer-readable storage medium corresponding to the method provided in the foregoing embodiments. Please refer to Figure 5 , which shows that the computer-readable storage medium is an optical disc 30, on which a computer program (i.e., a program product) is stored. When the computer program is run by a processor, it will execute the method provided in any of the foregoing embodiments.

[0124] It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical and magnetic storage media, which will not be elaborated here one by one.

[0125] The computer-readable storage medium provided in the above embodiments of the present application and the method provided in the embodiments of the present application are based on the same inventive concept and have the same beneficial effects as the method adopted, run or implemented by the application program stored therein.

[0126] It should be noted that the above embodiments are illustrative of the present application rather than restrictive thereof, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in the claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present application can be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a unit claim listing several devices, several of these devices may be embodied by the same item of hardware. The use of the words first, second, and third, etc. does not denote any order. These words can be interpreted as names.

[0127] As described above, the above are only preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the said claims.

[0128] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural transformations made by using the content of the specification and drawings of the present invention under the concept of the present invention, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A method for controlling the operation of a loader, characterized in that, The method includes: Collecting the operation data of the loader's historical operation cycles, and obtaining the remaining battery power and the status parameters of the engine after-treatment system in real time; Calculating the average power of several operation cycles according to the operation data; Determining the operation parameters of the range extender according to the average power and the current remaining battery power; Determining the operation condition curve according to the status parameters of the engine after-treatment system; Controlling the operation of the loader according to the operation parameters of the range extender and the operation condition curve.

2. The method according to claim 1, wherein Determining the operation parameters of the range extender according to the average power and the current remaining battery power, including: Judging the current power state of the current remaining battery power according to the preset power threshold interval; the preset power threshold interval is divided according to the preset power threshold; Determining the operation parameters of the range extender according to the average power and the current power state; the operation parameters include the operation mode and / or the output power value.

3. The method according to claim 2, characterized in that, If the preset power threshold interval is in the first interval, the determining the operation parameters of the range extender according to the average power and the current power state includes: If the average power is greater than or equal to the first preset power threshold, the output power value of the range extender is determined as the average power; If the average power is less than the first preset power threshold, the operation mode of the range extender is determined as the pure electric mode.

4. The method according to claim 3, characterized in that, If the preset power threshold interval is in the second interval, the determining the operation parameters of the range extender according to the average power and the current power state includes: If the average power is greater than or equal to the first preset power threshold, the output power value of the range extender is determined as the average power; If the average power is less than the first preset power threshold, the output power value of the range extender is determined as the first preset power threshold.

5. The method according to claim 2, wherein If the preset power threshold interval is in the third interval, the determining the operation parameters of the range extender according to the average power and the current power state includes: If the average power is greater than or equal to the second preset power threshold, the output power value of the range extender is determined as the sum of the average power and the preset power increment; If the average power is less than the second preset power threshold, the output power value of the range extender is determined as the larger value between the average power and the preset power increment.

6. The method according to claim 1, wherein The status parameters of the engine after-treatment system include the selective catalytic reduction after-treatment temperature and the carbon loading; the determining the operation condition curve according to the status parameters of the engine after-treatment system includes: If the selective catalytic reduction after-treatment temperature is less than or equal to the set temperature threshold, the operation condition curve is the first condition curve, and the first condition curve represents that the nitrogen oxide emission is within the set low emission range; If the selective catalytic reduction after-treatment temperature is greater than the set temperature threshold and the carbon loading is less than or equal to the set carbon loading threshold, the operation condition curve is the second condition curve, and the second condition curve represents that the fuel consumption is within the set fuel consumption range; If the selective catalytic reduction post-treatment temperature is greater than the set temperature threshold and the carbon loading is greater than the set carbon loading threshold, the operating condition curve is the third operating condition curve, and the third operating condition curve characterizes that the exhaust gas temperature is within the set high temperature range and the nitrogen oxide emission is within the set high emission range.

7. The method according to claim 1, wherein The operation data of the loader's historical operation cycles includes vehicle speed, working mode, and motor torque; the calculation of the average power of several operation cycles based on the operation data includes: Identifying several working stages in several operation cycles of the loader according to the operation data; For each operation cycle, calculating the sum of the power consumptions of each working stage within the operation cycle as the total power consumption of the operation cycle; Accumulating the total power consumptions of several operation cycles to obtain the total power consumption of several operation cycles; Obtaining the total time of several operation cycles according to the accumulated value of the start to end time of all operation cycles; Calculating the average power of several operation cycles by dividing the total power consumption of several operation cycles by the total time of several operation cycles.

8. A loader operation control system, characterized in that, The system includes: A data monitoring module for collecting the operation data of the loader's historical operation cycles and obtaining the remaining battery power and the status parameters of the engine post-treatment system in real time; An average power calculation module for calculating the average power of several operation cycles according to the operation data; An operating parameter determination module for determining the operating parameters of the range extender according to the average power and the current remaining battery power; An operating condition curve determination module for determining the operating condition curve according to the status parameters of the engine post-treatment system; An operating control module for controlling the operation of the loader according to the operating parameters of the range extender and the operating condition curve.

9. An electronic device, comprising: A memory, a processor, and a computer program stored on the memory and executable on the processor, wherein when the processor runs the computer program, it is executed to implement the method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, A computer-readable instruction is stored thereon, and the computer-readable instruction can be executed by the processor to implement the method according to any one of claims 1-7.

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