Paver control method, paver control system, and paver

Abstract

The application belongs to the technical field of engineering machinery, and particularly relates to a paver control method, a paver control system and a paver. The paver control method comprises the following steps: obtaining construction parameters of a paving operation, and controlling the paver to work in preset state parameters according to the construction parameters; obtaining an engine load rate of the paver in real time, matching target state parameters capable of making the engine in a low fuel consumption working condition according to the engine load rate, and controlling the paver to work in the target state parameters; and correcting the preset state parameters according to the target state parameters. The application can correspondingly adjust the engine speed, the vibrating current and the vibrating current under the condition that the engine output torque meets the load requirement, reduce the engine fuel consumption, improve the economy, prevent the influence on normal vibrating and vibrating operations, and further correct the preset state parameters, so that the matching of the preset state parameters and the construction parameters is stronger, and the efficiency of the adjustment operation is improved.

Description

Technical Field

[0001] This invention belongs to the field of engineering machinery technology, specifically relating to paver control methods, paver control systems, and pavers. Background Technology

[0002] A paver is a common piece of road construction machinery. During operation, it uses a screed and other working mechanisms to spread road fill materials. Typically, existing pavers are set to a fixed engine speed, resulting in high fuel consumption and poor fuel economy. Therefore, some existing pavers have adopted methods to adjust the engine speed to reduce fuel consumption.

[0003] However, due to the complex impact of engine speed changes during actual construction, the existing solutions for adjusting engine speed are relatively simple. They typically calculate a preset speed value based on input parameters and control the engine to operate at that preset speed. This makes it difficult to adjust the speed based on the real-time status of the engine during operation and to correct the preset speed. As a result, the accuracy of engine speed adjustment is not high, and the fuel consumption reduction effect is not significant. Moreover, the existing solutions do not address the impact of engine speed changes on the working state of the tamping and vibration mechanisms. Therefore, the existing solutions still suffer from problems such as high engine fuel consumption, poor economy, low efficiency of engine speed adjustment, and impact on the working state of the tamping and vibration mechanisms. Summary of the Invention

[0004] In view of this, in order to improve at least one of the above-mentioned problems existing in the prior art, the present invention provides a paver control method, a paver control system, and a paver.

[0005] The first aspect of the present invention provides a paver control method, comprising:

[0006] Step S100: Obtain the construction parameters for the paving operation, and control the paver to work with the corresponding preset state parameters according to the construction parameters;

[0007] Step S200: Obtain the engine load rate of the paver in real time, match the target state parameters that enable the engine to operate under low fuel consumption conditions based on the engine load rate, and control the paver to operate under the target state parameters.

[0008] Step S300: Correct the preset state parameters according to the target state parameters;

[0009] The preset state parameters include preset engine speed, preset vibration current and preset vibration current, while the target state parameters include target engine speed, target vibration current and target vibration current.

[0010] In one feasible implementation, the construction parameters include paving width, paving thickness, paving speed, and material density;

[0011] Step S100: Obtain the construction parameters for the paving operation, and control the paver to operate with the corresponding preset state parameters according to the construction parameters, including:

[0012] Step S110: Obtain construction parameters;

[0013] Step S120: Determine the actual productivity of the engine based on the construction parameters and the actual productivity calculation formula;

[0014] Step S130: Compare the actual productivity with the available productivity of the engine at different speeds, and match the engine speed corresponding to the actual productivity as the preset engine speed.

[0015] Step S140: Determine the preset vibration current of the vibrating mechanism and the preset vibration current of the vibrating mechanism according to the construction parameters;

[0016] Step S150: Control the engine to operate at a preset engine speed, control the vibrating mechanism to operate at a preset vibrating current, and control the vibration mechanism to operate at a preset vibration current.

[0017] In one feasible implementation, step S200 involves: acquiring the paver's engine load rate in real time, matching target state parameters that enable the engine to operate under low fuel consumption conditions based on the engine load rate, and controlling the paver to operate under the target state parameters, including:

[0018] Step S210: Obtain the engine load rate of the paver in real time;

[0019] Step S220: Determine the actual output power of the engine based on the engine load rate and the maximum output power of the engine at the current speed;

[0020] Step S230: Based on the universal characteristic curve and the actual output power, match the engine speed that enables the engine to operate at the lowest fuel consumption condition, and use it as the target engine speed.

[0021] Step S240: Adjust the current engine speed to the target engine speed;

[0022] Step S250: Determine the target tamping current and target vibration current based on the quantitative relationship between the engine speed before adjustment and the target engine speed;

[0023] Step S260: Adjust the current vibration current to the target vibration current, and adjust the current vibration current to the target vibration current.

[0024] In one feasible implementation, step S220: determining the actual output power of the engine based on the engine load rate and the maximum output power of the engine at the current speed, including:

[0025] Step S221: Based on the engine's real-time engine load rate and the engine's maximum output power at the current speed, determine the actual output power corresponding to each engine load rate and form an actual output power range;

[0026] Step S230: Based on the universal characteristic curve matching and actual output power, match the engine speed corresponding to the engine operating at its lowest fuel consumption condition, and use this as the target engine speed, including:

[0027] Step S231: Based on the universal characteristic curve and each actual output power in the actual output power range, determine the corresponding low fuel consumption speed range of the engine.

[0028] Step S232: Determine the engine speed corresponding to the current real-time engine load rate in the low fuel consumption speed range, and use it as the target engine speed.

[0029] In one feasible implementation, step S240: adjusting the current engine speed to the target engine speed includes:

[0030] Step S241: Determine whether the current engine speed is greater than the target engine speed, and generate the first determination result;

[0031] If the first judgment result is yes, execute step S242: lower the current engine speed to the first preset value, and then execute step S243: determine whether the current engine speed is equal to the target engine speed, and generate the second judgment result;

[0032] If the second judgment result is yes, proceed to step S250;

[0033] If the second judgment result is negative, proceed to step S241;

[0034] If the first judgment result is negative, proceed to step S245: increase the current engine speed by the first preset value, and then proceed to step S243.

[0035] In one feasible implementation, step S250: determining the target tamping current and the target vibration current based on the quantitative relationship between the engine speed before adjustment and the target engine speed, including:

[0036] Step S251: Determine the adjustment coefficient of the target engine speed relative to the engine speed before adjustment;

[0037] Step S252: Determine the first correction factor for the vibration current and the second correction factor for the vibration current based on the adjustment factor;

[0038] Step S253: Determine the target tamping current and target vibration current based on the current tamping current, vibration current, first correction coefficient, and second correction coefficient.

[0039] In one feasible implementation, the adjustment factor is the ratio of the target engine speed to the engine speed before adjustment; the first correction factor and the second correction factor are equal and equal to the reciprocal of the adjustment factor.

[0040] In one feasible implementation, step S300: correcting the preset state parameters according to the target state parameters, including:

[0041] Step S310: Use the target engine speed as the corrected preset engine speed, the target vibration current as the corrected preset vibration current, and the target vibration current as the corrected preset vibration current.

[0042] Step S320: Store the corrected preset engine speed, the corrected preset vibration current, and the corrected preset vibration current.

[0043] The second aspect of the present invention provides a paver control system, comprising: an input operation device adapted to input construction parameters for paving operations; an engine controller adapted to communicate with the paver's engine for controlling engine operation; a vibration mechanism adapted to perform vibration operation; a vibration mechanism adapted to perform vibration operation; and a main controller communicatively connected to the input operation device, the engine controller, the vibration mechanism, and the vibration mechanism, wherein the main controller is adapted to acquire construction parameters and engine load rate, and control the operation of the engine, the vibration mechanism, and the vibration mechanism, thereby realizing the paver control method of any one of the first aspects of the present invention.

[0044] The third aspect of the present invention also provides a paver, including: the paver control system of any of the second aspects above.

[0045] A fourth aspect of the present invention also provides an electronic device, including a processor and a memory, wherein the memory stores a computer program suitable for execution in the processor. When the processor executes the computer program in the memory, it can implement the paver control method of any of the first aspects described above.

[0046] The fifth aspect of the present invention also provides a readable storage medium storing a computer program that, when executed by a processor, implements the paver control method of any of the first aspects described above.

[0047] The beneficial effects of the above-mentioned technical solution of the present invention are as follows:

[0048] During the operation of the paver, this invention adjusts the engine speed in real time according to the changes in engine load rate, and adjusts the vibration current and tamping current accordingly. After the adjustment operation, the preset state parameters are corrected. This allows the engine to operate in a low-fuel-consumption speed range while ensuring that the engine output torque meets the load requirements, thereby reducing fuel consumption, improving economy, and preventing interference with normal tamping and vibration operations. Furthermore, by correcting the preset state parameters, the matching with construction parameters is improved, which is beneficial to improving adjustment efficiency. Attached image description:

[0049] Figure 1 The diagram shown is a flowchart of a paver control method according to an embodiment of the present invention.

[0050] Figure 2 As shown Figure 1 A schematic diagram of the specific steps in step S100.

[0051] Figure 3 As shown Figure 1 A schematic diagram of a specific step in step S200.

[0052] Figure 4 As shown Figure 1 A schematic diagram of another specific step in step S200.

[0053] Figure 5 As shown Figure 1 A flowchart illustrating another specific step in step S200.

[0054] Figure 6 As shown Figure 3 A flowchart illustrating the specific steps of step S250.

[0055] Figure 7 As shown Figure 1 The flowchart of step S300 is shown in the figure.

[0056] Figure 8 The diagram shown is a schematic block diagram of a paver control system provided in one embodiment of the present invention.

[0057] Figure 9 The diagram shown is a schematic block diagram of a paver provided in one embodiment of the present invention.

[0058] Figure 10 The diagram shown is a schematic block diagram of another paver provided in one embodiment of the present invention. Detailed Implementation

[0059] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, top, bottom, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0060] Furthermore, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0061] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0062] Application Overview

[0063] A paver is a common piece of road construction machinery that spreads road fill material using a screed and other working mechanisms while in motion. Currently, existing pavers typically operate by setting a fixed engine speed, which results in high fuel consumption, poor fuel economy, and increased operating costs. Some existing pavers have adopted improvement solutions, such as adjusting the engine speed, in an attempt to reduce fuel consumption.

[0064] However, the impact of engine speed changes during actual construction is quite complex, and the existing solutions for adjusting engine speed are relatively simple. They typically calculate a preset speed value based on input parameters and control the engine to operate at that preset speed. This makes it difficult to adjust the speed based on the real-time status of the engine during operation and to correct the preset speed. As a result, the accuracy of engine speed adjustment is not high, and the effect of reducing fuel consumption is not significant. Moreover, the existing solutions do not address the impact of engine speed changes on the working state of the tamping and vibration mechanisms. Therefore, the existing solutions still suffer from problems such as high engine fuel consumption, poor economy, low efficiency of engine speed adjustment, and impact on the working state of the tamping and vibration mechanisms.

[0065] The following provides some embodiments of the paver control method, paver control system, paver, electronic equipment, and readable storage medium in the technical solution of the present invention.

[0066] An embodiment of the first aspect of the present invention provides a paver control method, such as... Figure 1 As shown, the paver control method includes:

[0067] Step S100: Obtain the construction parameters for the paving operation, and control the paver to work with preset state parameters according to the construction parameters;

[0068] Step S200: Obtain the engine load rate of the paver in real time, match the target state parameters that enable the engine to operate under low fuel consumption conditions based on the engine load rate, and control the paver to operate under the target state parameters.

[0069] Step S300: Correct the preset state parameters according to the target state parameters;

[0070] The preset state parameters include preset engine speed, preset vibration current and preset vibration current, while the target state parameters include target engine speed, target vibration current and target vibration current.

[0071] In the paver control method of this embodiment, in step S100, before the paver begins paving, preset state parameters corresponding to the paver are determined based on the input construction parameters for this paving operation. The paver is then controlled to start paving with these preset state parameters, achieving initialization control of the paver. Since the state parameters include engine speed, vibration current of the vibrating mechanism, and vibration current of the vibrating mechanism, the preset state parameters include preset engine speed, preset vibration current, and preset vibration current. In step S200, during the paver's paving operation, target state parameters that allow the engine to operate at low fuel consumption under the current engine load rate are matched based on the real-time acquired engine load rate index. These target state parameters include target engine speed, target vibration current of the vibrating mechanism, and target vibration current of the vibrating mechanism. By controlling the paver to operate with these target state parameters, real-time adjustments to the engine speed, vibration current, and vibration current are achieved, reducing fuel consumption while maintaining stable vibration and compaction operations. In step S300, after the aforementioned adjustment operation, the preset state parameters are corrected based on the target state parameters. This improves the accuracy of the preset state parameters and results in lower fuel consumption during the next paving operation under the same construction parameters.

[0072] It is understandable that during the paving operation, the vibration current and vibration current of the vibrating mechanism need to be matched with the engine speed. When the engine speed changes, the corresponding vibration frequency and vibration frequency will also change. If only the engine speed is adjusted without corresponding adjustment of the vibration current and vibration current, it will affect the normal vibration operation and vibration operation, and thus affect the paving operation quality.

[0073] The paver control method in this embodiment can adjust the engine speed in real time according to the changes in engine load rate during paver operation, and adjust the vibration current and tamping current accordingly. After the adjustment operation, the preset state parameters are corrected. It can keep the engine in a low-fuel-consumption speed range when the engine output torque meets the load requirements, so as to reduce fuel consumption and improve economy. After adjusting the engine speed, the vibration current and tamping current are adjusted accordingly to prevent the engine speed change from affecting the normal tamping and vibration operation, which is conducive to ensuring the quality of paving operation. Moreover, by correcting the preset state parameters, the matching with the construction parameters is better, which is conducive to improving the adjustment efficiency.

[0074] In a further embodiment of the present invention, a paver control method is provided, wherein the construction parameters include paving width, paving thickness, paving speed, and material density. For example... Figure 1 and Figure 2 As shown, based on the aforementioned paver control method, step S100 specifically includes:

[0075] Step S110: Obtain construction parameters;

[0076] Step S120: Determine the actual productivity of the engine based on the formula calculated from the paving width, paving thickness, paving speed, material density, and actual productivity.

[0077] Step S130: Compare the actual productivity with the available productivity of the engine at different speeds, and match the engine speed corresponding to the actual productivity as the preset engine speed.

[0078] Step S140: Determine the preset vibration current of the vibrating mechanism and the preset vibration current of the vibrating mechanism according to the construction parameters;

[0079] Step S150: Control the engine to operate at a preset engine speed, control the vibrating mechanism to operate at a preset vibrating current, and control the vibration mechanism to operate at a preset vibration current.

[0080] In this embodiment, based on the aforementioned embodiments, the specific method steps of step S100 are further described. Step S110 obtains the construction parameters for this paving operation, specifically including paving width B, paving thickness H, paving speed V, and material density ρ, as input values ​​for determining preset state parameters. Steps S120 and S130 determine the actual productivity of the paver based on the formula P1 = 60 × B × H × V × ρ, and compare the actual productivity P1 at each engine speed with the corresponding available productivity P2 to match the engine speed that meets the actual productivity, which is then used as the preset engine speed. Step S140 determines the required vibration current and vibration current for the vibration operation based on the construction parameters. Finally, step S150 starts the engine, vibration mechanism, and vibration mechanism with the preset engine speed, preset vibration current, and preset vibration current to begin the paving operation.

[0081] It can be understood that the vibration frequency A of the vibratory compaction mechanism is related to the paving width B, paving thickness H, and paving speed V in the construction parameters. The vibration current I1 = (I1max - I1min) × A + I1min, where I1max is the maximum control current of the vibratory compaction mechanism and I1min is the minimum control current. Therefore, the preset vibration current I1 can be determined. Similarly, the vibration frequency C of the vibratory compaction mechanism is also related to the paving width B, paving thickness H, and paving speed V. The vibration current I2 = (I2max - I2min) × C + I2min, where I2max is the maximum control current of the vibratory compaction mechanism and I2min is the minimum control current. Therefore, the preset vibration current I2 can be determined.

[0082] In a further embodiment of the present invention, a paver control method is provided, such as... Figure 1 and Figure 3 As shown, based on the aforementioned paver control method, step S200 specifically includes:

[0083] Step S210: Obtain the engine load rate of the paver in real time;

[0084] Step S220: Determine the actual output power of the engine based on the engine load rate and the maximum output power of the engine at the current speed;

[0085] Step S230: Based on the universal characteristic curve and the actual output power, match the engine speed that enables the engine to operate at the lowest fuel consumption condition, and use it as the target engine speed.

[0086] Step S240: Adjust the current engine speed to the target engine speed;

[0087] Step S250: Determine the target tamping current and target vibration current based on the quantitative relationship between the engine speed before adjustment and the target engine speed;

[0088] Step S260: Adjust the current vibration current to the target vibration current, and adjust the current vibration current to the target vibration current.

[0089] In this embodiment, the specific process of step S200 is further described based on the aforementioned embodiment. During the paving operation, in step S210, the engine load rate index of the paver is monitored in real time as a basis for subsequent adjustment of the engine speed. In step S220, according to the engine load rate formula Q = W1 / W2, where W1 represents the current actual output power of the engine and W2 represents the maximum output power of the engine at the current speed, since the maximum output power W2 can be determined by the current engine speed, the corresponding actual output power W1 can be calculated. In step S230, based on the universal characteristic curve and the actual output power of the engine, the engine speed corresponding to the lowest fuel consumption condition is matched, that is, at this engine speed, the engine output power can meet the requirements of the paving operation, and the engine is in the state of lowest fuel consumption. This engine speed is marked as the target engine speed. Then, in step S240, the engine speed is adjusted to the target engine speed to reduce fuel consumption. Subsequently, through steps S250 to S260, based on the changes in engine speed, i.e. the quantitative relationship between the engine speed before adjustment and the target engine speed, the corresponding target tamping current and target vibration current are determined. Then, the tamping mechanism and the vibration mechanism are adjusted accordingly to make the tamping mechanism work with the target tamping current and the vibration mechanism work with the corresponding target vibration current, so as to prevent the changes in engine speed from affecting the tamping and vibration operations.

[0090] It should be noted that the vibration frequency A of the tamping mechanism and the vibration frequency C of the vibrating mechanism are both related to the engine speed. When the engine speed is adjusted, the tamping frequency A and the vibration frequency C will change accordingly, which in turn will cause changes in the tamping current I1 and the vibration current I2. By adjusting the tamping current and the vibration current accordingly, the influence of the engine speed change on the tamping and vibration operations can be offset, so that the tamping mechanism and the vibrating mechanism can maintain their current working state.

[0091] In addition, in practical applications, since the paving speed is the same as the travel speed of the paver and is one of the construction parameters, the paving speed does not change during the paving operation. Therefore, after the engine speed is adjusted, the travel pump of the paver automatically adjusts its displacement to keep the paving speed constant and prevent it from affecting the quality of the paving operation.

[0092] Furthermore, such as Figure 1 and Figure 4 As shown, step S220 specifically includes:

[0093] Step S221: Based on the engine's real-time engine load rate and the engine's maximum output power at the current speed, determine the actual output power corresponding to each engine load rate and form an actual output power range;

[0094] The above step S230 specifically includes:

[0095] Step S231: Based on the universal characteristic curve and each actual output power in the actual output power range, determine the corresponding low fuel consumption speed range of the engine.

[0096] Step S232: Determine the engine speed corresponding to the current real-time engine load rate in the low fuel consumption speed range, and use it as the target engine speed.

[0097] In this embodiment, step S221 determines the actual output power corresponding to each engine load rate based on the real-time acquired engine load rate and the engine's maximum output power at the current speed. Multiple actual output powers are then categorized by displacement to form actual output power ranges, thus obtaining the range of engine load rate variation when the engine is operating at the current speed. Then, in step S231, each actual output power within the actual output power range is matched with the engine speed according to the universal characteristic curve to determine the engine's low fuel consumption speed range. This is the engine speed range that allows the engine to operate in a low fuel consumption state and corresponds to the aforementioned actual output power range, thereby obtaining the range of engine speed variation. Furthermore, in step S232, based on the engine's current real-time engine load rate, the corresponding engine speed is determined from the aforementioned low speed range as the target engine speed. Finally, in step S240, the engine speed is adjusted accordingly.

[0098] In this context, steps S221 and S231 can both be steps that last for a certain time interval. The time interval can be set according to the actual situation, thereby continuously monitoring and acquiring the real-time engine load rate within the time interval, and then determining the actual output power and the range of engine speed changes within the time interval. This can reduce the frequency of adjustment operations and improve adjustment efficiency to a certain extent.

[0099] Furthermore, such as Figure 1 , Figure 3 and Figure 5 As shown, step S240 specifically includes:

[0100] Step S241: Determine whether the current engine speed is greater than the target engine speed, and generate the first determination result;

[0101] If the first judgment result is yes, execute step S242: lower the current engine speed by the first preset value;

[0102] Then execute step S243: determine whether the current engine speed is equal to the target engine speed, and generate a second judgment result;

[0103] If the second judgment result is yes, proceed to step S250;

[0104] If the second judgment result is negative, proceed to step S241;

[0105] If the first judgment result is negative, proceed to step S245: increase the current engine speed by the first preset value, and then proceed to step S243.

[0106] In this embodiment, the specific process of adjusting the engine speed is further described in detail. Specifically, step S241 first determines the relationship between the current engine speed and the target engine speed. If the current engine speed is greater than the target engine speed, step S242 lowers the current engine speed by a first preset value. Then, step S243 is executed to determine whether the current engine speed is equal to the target engine speed. If the current engine speed is equal to the target engine speed, the adjustment is complete, and the subsequent step S250 can be executed. If the current engine speed is not equal to the target engine speed, the adjustment is incomplete, and step S241 is executed again to perform the adjustment operation based on the relationship. If the first determination result in step S241 is negative, step S245 raises the current engine speed by a first preset value. Then, step S243 is executed to confirm whether the adjustment is complete. If the adjustment is still incomplete, step S241 is executed again to perform the corresponding adjustment operation.

[0107] It should be noted that, to improve adjustment efficiency, a small fluctuation range can be set for the target engine speed during the comparison and judgment process. The fluctuation range is ±Δn, with the target engine speed as the benchmark. Values ​​within this fluctuation range can be considered equal to the target engine speed. Furthermore, the first preset value can be set according to actual conditions; for example, a smaller value can be used to improve the accuracy of each adjustment operation.

[0108] Furthermore, such as Figure 1 , Figure 3 and Figure 6 As shown, step S250 specifically includes:

[0109] Step S251: Determine the adjustment coefficient of the target engine speed relative to the engine speed before adjustment;

[0110] Step S252: Determine the first correction factor for the vibration current and the second correction factor for the vibration current based on the adjustment factor;

[0111] Step S253: Determine the target vibration current and target tamping current based on the current tamping current, the preset vibration current, the first correction coefficient, and the second correction coefficient.

[0112] In this embodiment, the specific process of determining the target vibration current and the target vibration current is further described in detail. Since changes in engine speed cause corresponding changes in the vibration frequency and the vibration frequency, step S251 is used to calculate the first correction coefficient K1 for the vibration current and the second correction coefficient K2 for the vibration current based on the adjustment coefficients before and after engine speed adjustment. Then, in step S252, the target vibration current is calculated using the current vibration current and the first correction coefficient, and the target vibration current is calculated using the current vibration current and the second correction coefficient. Specifically, the target vibration current I3 = I1 × K1, and the target vibration current I4 = I2 × K2. By calculating the first and second correction coefficients using the engine's adjustment coefficients, the obtained target vibration current and target vibration current match the changes in engine speed, making the adjustment operation more accurate.

[0113] Furthermore, the adjustment coefficient is the ratio of the target engine speed to the engine speed before adjustment; the first correction coefficient and the second correction coefficient are equal and equal to the reciprocal of the adjustment coefficient. That is, the first correction coefficient K1 = the second correction coefficient K2 = the engine speed before adjustment / the target engine speed. The first correction coefficient K1 and the second correction coefficient K2 obtained by the above calculation formula are inversely proportional to the engine speed adjustment coefficient. When the engine speed decreases, the tamping current and vibration current increase accordingly to offset the power decrease of the tamping mechanism and vibration mechanism caused by the decrease in engine speed, so as to keep the tamping mechanism and vibration mechanism in their original working state; similarly, when the engine speed increases, the tamping current and vibration current decrease accordingly to offset the power increase of the tamping mechanism and vibration mechanism caused by the increase in engine speed, so as to keep the tamping mechanism and vibration mechanism in their original working state.

[0114] It should be noted that in practical applications, due to the conversion efficiency issues of hydraulic components such as vibratory pumps and tamping pumps, a certain degree of error will occur during adjustment operations. A corresponding allowable error range can be set. As long as the adjustment result is within this allowable error range, the adjusted structure is considered to meet the requirements (for example, adjusting the tamping frequency to within the allowable error range of the original frequency is acceptable). Therefore, the phrase "keeping the tamping mechanism and the tamping mechanism in their original working state" in the above description means, in practical applications, keeping the tamping mechanism and the tamping mechanism approximately in their original working state, i.e., within the allowable error range of the original working state. Other adjustment operations in this invention (such as engine speed adjustment) are similar and will not be described further.

[0115] Specifically, the preset minimum vibration current ≤ target vibration current ≤ preset maximum vibration current, and the preset minimum vibration current ≤ target vibration current ≤ preset maximum vibration current. It is understood that in practical applications, the operating current of the vibration mechanism and the vibrating mechanism have upper and lower limits, specifically determined by the device model. Therefore, there are limitations on the preset maximum vibration current, minimum vibration current, maximum vibration current, and minimum vibration current. Thus, when calculating the target vibration current and target vibration current, the calculated values ​​cannot exceed the corresponding upper and lower limits. For example, when the calculated value of the target vibration current is greater than the preset maximum vibration current, the preset maximum vibration current is used as the target vibration current; when the calculated value of the target vibration current is less than the preset minimum vibration current, the preset minimum vibration current is used as the target vibration current. The calculation process for the target vibration current is similar and will not be elaborated here. This method ensures that both the target vibration current and the target vibration current are within the normal operating current range, preventing malfunctions due to excessive current or failure to meet normal operational requirements due to insufficient current.

[0116] In a further embodiment of the present invention, a paver control method is provided, such as... Figure 1 and Figure 7 As shown, based on the aforementioned paver control method, step S300 specifically includes:

[0117] Step S310: Use the target engine speed as the corrected preset engine speed, the target vibration current as the corrected preset vibration current, and the target vibration current as the corrected preset vibration current.

[0118] Step S320: Store the corrected preset engine speed, the corrected preset vibration current, and the corrected preset vibration current.

[0119] In this embodiment, after adjusting the engine speed, vibratory current, and vibration current, step S310 corrects the preset engine speed, preset vibratory current, and preset vibration current determined before the start of the paving operation, based on the target engine speed, target vibratory current, and target vibration current. Then, step S320 stores the correction result. When the paving operation is performed again with the same construction parameters, it can be directly used as the preset engine speed, preset vibratory current, and preset vibration current for the next paving operation, resulting in a stronger match with the construction parameters and higher accuracy. This is beneficial for further reducing fuel consumption during the paving operation and improving the efficiency of the adjustment operation.

[0120] In an embodiment of the second aspect of the present invention, a paver control system 100 is also provided, such as Figure 8As shown, the paver control system 100 includes an input operation device 11, an engine controller 12, a compaction mechanism 13, a vibration mechanism 14, and a main controller 15. When applied to the paver 200, the input operation device 11 is located on the paver body, such as in the cab, to facilitate the driver's input of paving operation parameters, including but not limited to paving width, paving thickness, paving speed, and material density. The engine controller 12 is adapted to communicate with the engine of the paver 200 to control engine operation. The compaction mechanism 13 is adapted to compact the paving material, and the vibration mechanism 14 is adapted to vibrate the paving material. The main controller 15 is communicatively connected to the input operation device 11, the engine controller 12, the vibration mechanism 13, and the vibration mechanism 14. The main controller 15 can obtain the construction parameters of the paving operation through the input operation device 11, obtain the engine load rate through the engine controller 12, and control the operation of the engine, the vibration mechanism 13, and the vibration mechanism 14 according to the construction parameters and the engine load rate. Specifically, the main controller 15 can determine the preset engine speed, the preset vibration current, and the preset vibration current according to the construction parameters, and can adjust the engine speed, the vibration current, and the vibration current according to the real-time engine load rate during the paving operation, thereby realizing the paver control method in any embodiment of the first aspect.

[0121] Furthermore, the input operation device 11 can be installed on the instrument control panel of the paver 200, for example, a display screen with input function can be used.

[0122] Furthermore, the main controller 15 may be a control module integrated into the on-board computer of the paver 200, or it may be an independent control element that communicates with the on-board computer of the paver 200.

[0123] Furthermore, the paver control system 100 in this embodiment also has all the beneficial effects of the paver control method in any of the above embodiments, which will not be repeated here.

[0124] A paver 200 is also provided in an embodiment of a third aspect of the invention. For example... Figure 8 and Figure 9 As shown, the paver 200 includes the paver control system 100 in any of the embodiments of the second aspect described above.

[0125] Furthermore, in practical applications, such as Figure 9 and Figure 10As shown, the paver 200 also includes a paver body 210, a paving operation mechanism 220, and an engine 230. In the paver control system 100, an input operation device 11 is located in the paver body 210, for example, in the driver's cab. The engine controller 12 is communicatively connected to the engine 230 of the paver 200. A compaction mechanism 13 and a vibration mechanism 14 are located on the paving operation mechanism 220 to perform compaction and vibration operations during the paving of the paving material. A main controller 15 is located on the paver body 210 and is used to control the operation of the paver control system 100, control the engine 230 and the compaction mechanism 13, and adjust the engine speed, compaction current, and vibration current to realize the paver control method in any embodiment of the first aspect. Specifically, the paving operation mechanism 220 can be in the form of a screed.

[0126] Furthermore, the paver 200 in this embodiment also has all the beneficial effects of the paver control system 100 in any embodiment of the second aspect and the paver control method in any embodiment of the first aspect, which will not be repeated here.

[0127] One embodiment of the present invention provides an electronic device. The electronic device includes a processor and a memory, wherein the memory stores a computer program suitable for execution in the processor. When the processor executes the computer program in the memory, it can implement the paver control method of any of the above embodiments. Furthermore, the electronic device may also be provided with a communication interface and a communication bus, and the processor, communication interface, and memory communicate with each other through the communication bus. The electronic device in this embodiment has all the beneficial effects of the paver control method of any of the above embodiments, which will not be elaborated further here.

[0128] In addition, one embodiment of the present invention provides a readable storage medium storing a computer program that, when executed by a processor, implements the paver control method of any of the above embodiments. Therefore, the readable storage medium in this embodiment possesses all the beneficial effects of the paver control method of any of the above embodiments, and will not be elaborated further here.

[0129] It should be noted that the computer program in the memory of the above embodiments can be implemented in the form of software functional units. When implemented in the form of software functional units and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the paver control method of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, mobile hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0130] The basic principles of the present invention have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in the present invention are merely examples and not limitations, and should not be considered as essential features of each embodiment of the present invention. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the present invention to the necessity of employing the aforementioned specific details.

[0131] The block diagrams of the devices, apparatuses, devices, and systems involved in this invention are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it. It should also be noted that in the apparatuses and devices of this invention, the components can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered equivalents of the invention.

[0132] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although several exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof. The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the invention. Therefore, the invention is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features of the invention herein.

[0133] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A paver control method, characterized in that, include: Step S100: Obtain the construction parameters for the paving operation, and control the paver to work with the corresponding preset state parameters according to the construction parameters; include: Step S110: Obtain the construction parameters, which include paving width, paving thickness, paving speed, and material density; Step S120: Determine the actual productivity of the engine based on the paving width, paving thickness, paving speed, material density, and the actual productivity calculation formula; Step S130: Compare the actual productivity with the available productivity of the engine at different speeds, and match the engine speed corresponding to the actual productivity as the preset engine speed of the engine; Step S140: Determine the preset vibration current of the vibration mechanism and the preset vibration current of the vibration mechanism according to the construction parameters. Step S150: Control the engine to operate at the preset engine speed, control the vibrating mechanism to operate at the preset vibrating current, and control the vibration mechanism to operate at the preset vibration current; Step S200: Real-time acquisition of the paver's engine load rate, matching the target state parameters that enable the engine to operate in a low fuel consumption condition based on the engine load rate, and controlling the paver to operate with the target state parameters; including: Step S210: Obtain the engine load rate of the paver in real time; Step S220: Determine the actual output power of the engine based on the engine load rate and the maximum output power of the engine at the current speed; Step S230: Based on the universal characteristic curve and the actual output power, match the engine speed that enables the engine to operate at the lowest fuel consumption condition, and use it as the target engine speed. Step S240: Adjust the current engine speed to the target engine speed; Step S250: Determine the target vibration current and the target tamping current based on the quantitative relationship between the engine speed before adjustment and the target engine speed; including: Step S251: Determine the adjustment coefficient of the target engine speed relative to the engine speed before adjustment; Step S252: Determine the first correction factor for the tamping current and the second correction factor for the vibration current based on the adjustment factor; Step S253: Determine the target vibration current and the target tamping current based on the current tamping current, the vibration current, the first correction coefficient, and the second correction coefficient; Step S260: Adjust the current vibration current to the target vibration current, and adjust the current vibration current to the target vibration current; Step S300: Correct the preset state parameters according to the target state parameters; The preset state parameters include preset engine speed, preset vibration current and preset vibration current, and the target state parameters include target engine speed, target vibration current and target vibration current.

2. The paver control method according to claim 1, characterized in that, Step S220: Determining the actual output power of the engine based on the engine load rate and the maximum output power of the engine at the current speed, including: Step S221: Based on the real-time engine load rate and the maximum output power of the engine at the current speed, determine the actual output power corresponding to each engine load rate, and form an actual output power range; Step S230: Based on the universal characteristic curve matching and the actual output power, match the engine speed corresponding to the engine operating at its lowest fuel consumption condition, as the target engine speed, including: Step S231: Determine the corresponding low fuel consumption speed range of the engine based on the universal characteristic curve and each actual output power in the actual output power range; Step S232: Determine the engine speed corresponding to the current real-time engine load rate of the engine in the low fuel consumption speed range, and use it as the target engine speed.

3. The paver control method according to claim 1, characterized in that, Step S240: Adjusting the current engine speed to the target engine speed includes: Step S241: Determine whether the current engine speed is greater than the target engine speed, and generate a first determination result; If the first judgment result is yes, execute step S242: lower the current engine speed by a first preset value, and then execute step S243: determine whether the current engine speed is equal to the target engine speed, and generate a second judgment result; If the second determination result is yes, proceed to step S250; If the second determination result is negative, proceed to step S241; If the first judgment result is negative, proceed to step S245: increase the current engine speed by a first preset value, and then proceed to step S243.

4. The paver control method according to claim 1, characterized in that, The adjustment coefficient is the ratio of the target engine speed to the engine speed before adjustment; The first correction factor and the second correction factor are equal, and are equal to the reciprocal of the adjustment factor.

5. The paver control method according to claim 1, characterized in that, Step S300: Correcting the preset state parameters according to the target state parameters includes: Step S310: Use the target engine speed as the corrected preset engine speed, the target vibration current as the corrected preset vibration current, and the target vibration current as the corrected preset vibration current. Step S320: Store the corrected preset engine speed, the corrected preset vibration current, and the corrected preset vibration current.

6. A paver control system, characterized in that, include: Input operation device (11), suitable for inputting construction parameters for paving operations; An engine controller (12) is adapted to communicate with the engine of a paver for controlling the operation of the engine; The vibration mechanism (13) is suitable for vibration operation; Vibration mechanism (14), suitable for vibration operation; The main controller (15) is communicatively connected to the input operation device (11), the engine controller (12), the tamping mechanism (13), and the vibration mechanism (14). The main controller (15) is adapted to acquire the construction parameters and engine load rate, and control the engine, the tamping mechanism (13), and the vibration mechanism (14) to work, thereby realizing the paver control method as described in any one of claims 1 to 5.

7. A paver, characterized in that, include: The paver control system as described in claim 6.

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