Control method, processor, construction vehicle, and storage medium for a construction vehicle

Abstract

The application relates to the field of engineering machinery, in particular to a control method for an engineering vehicle, a processor, an engineering vehicle and a storage medium. The method comprises the following steps: determining a corresponding relationship among a road surface slope, a vehicle speed and a vehicle tire pressure according to historical running parameters of the vehicle; in the driving process of the engineering vehicle, acquiring an actual slope of a current road surface, a current tire pressure and a current speed of the engineering vehicle; determining a slope level corresponding to the actual slope, and determining a corresponding target tire pressure and a safe speed according to the slope level and the corresponding relationship; in the case that the current speed is within the safe speed and the difference between the current tire pressure and the target tire pressure exceeds a preset range, adjusting the current tire pressure until the difference between the tire pressure of the engineering vehicle and the target tire pressure is within the preset range. The above technical scheme determines the corresponding relationship among the running parameters of the engineering vehicle, and adjusts the tire pressure according to the real-time driving condition of the engineering vehicle, thereby improving the climbing performance of the engineering vehicle.

Description

Technical Field

[0001] This application relates to the field of construction machinery, and more specifically, to a control method, processor, construction vehicle, and storage medium for construction vehicles. Background Technology

[0002] The working scenarios faced by engineering vehicles vary greatly depending on the construction site. For example, when engineering vehicles are working in the desert, the harsh road conditions, soft ground, and large ground deformation significantly reduce their climbing ability. Currently, to improve the climbing ability of engineering vehicles, operators typically manually release small amounts of air from the tires one at a time, repeatedly trying to change the tire pressure to enhance the vehicle's climbing ability. Summary of the Invention

[0003] The purpose of this application is to provide a control method, processor, engineering vehicle, and storage medium for improving the climbing ability of engineering vehicles.

[0004] To achieve the above objectives, this application provides a control method for engineering vehicles, the control method comprising:

[0005] Determine the relationship between road slope, vehicle speed, and vehicle tire pressure based on the vehicle's historical operating parameters;

[0006] During the operation of the engineering vehicle, the actual slope of the current road surface, the current tire pressure of the engineering vehicle, and the current speed of the vehicle are obtained.

[0007] Determine the slope level corresponding to the actual slope, and determine the corresponding target tire pressure and safe speed based on the slope level and the corresponding relationship;

[0008] If the current vehicle speed is within a safe speed range and the difference between the current tire pressure and the target tire pressure exceeds a preset range, adjust the current tire pressure until the difference between the tire pressure of the engineering vehicle and the target tire pressure is within the preset range.

[0009] In embodiments of this application, determining the correspondence between road surface slope, vehicle speed, and vehicle tire pressure based on the vehicle's historical operating parameters includes: acquiring the vehicle's historical operating parameters within a preset historical time period; filtering invalid data from the historical operating parameters, wherein invalid data refers to operating parameters that are determined to cause damage to the tires; setting multiple slope intervals and determining the slope level corresponding to each slope interval; determining a first historical operating parameter with a slope of the upper limit value for each slope interval, the first historical operating parameter including the vehicle's operating parameters at different vehicle speeds; and analyzing the first historical operating parameter to determine the correspondence between road surface slope, vehicle speed, and vehicle tire pressure.

[0010] In the embodiments of this application, analyzing the first historical operating parameters to determine the correspondence between road slope, vehicle speed, and vehicle tire pressure includes: setting multiple speed ranges; for the upper limit of each speed range, determining multiple first tire pressures of the engineering vehicle when the vehicle speed is at the upper limit, and obtaining the load-bearing capacity of the engineering vehicle; determining the standard tire pressure corresponding to the upper limit speed based on the load-bearing capacity; comparing each first tire pressure with the standard tire pressure to determine the tire pressures greater than the standard tire pressure among the multiple first tire pressures as a tire pressure set, wherein the tire pressure set includes multiple second tire pressures; determining the difference between each second tire pressure and the standard tire pressure, and determining the second tire pressure with the smallest difference as the optimal tire pressure of the engineering vehicle when it is at the upper limit of slope and the upper limit of speed; determining the optimal tire pressure as the optimal tire pressure of the speed range corresponding to the upper limit speed in the slope level corresponding to the upper limit slope, thereby determining the optimal tire pressure corresponding to each speed range in the slope level corresponding to the upper limit slope.

[0011] In embodiments of this application, the control method further includes: acquiring the actual slope of the current road surface and the current tire pressure and current speed of the engineering vehicle; determining the climbable slope range and the drivable speed range corresponding to the current tire pressure based on the current tire pressure and the corresponding relationship; determining the slope level of the actual slope based on the actual slope when the actual slope is outside the climbable slope range; determining the target tire pressure and safe speed corresponding to the actual slope based on the slope level and the corresponding relationship; and / or issuing an overspeed alarm when the actual slope is within the climbable slope range and the current speed is outside the drivable speed range.

[0012] In embodiments of this application, the engineering vehicle further includes an interactive device, and the control method further includes: receiving the slope to be climbed and the vehicle speed requirement input by the user through the interactive device; determining the slope level corresponding to the slope to be climbed based on the correspondence, and determining the corresponding target tire pressure according to the slope level and the vehicle speed requirement; adjusting the current tire pressure until the difference between the current tire pressure and the target tire pressure is within the preset range when the difference between the tire pressure and the target tire pressure of the engineering vehicle exceeds the preset range.

[0013] In embodiments of this application, the control method further includes: after determining the target tire pressure based on the gradient to be climbed and the speed requirement of the engineering vehicle input by the user, receiving a save command from the user through an interactive device; saving the current route as a fixed route according to the save command, and associating the target tire pressure determined based on the gradient to be climbed and the speed requirement input by the user with the fixed route; receiving the route name input by the user through the interactive device, naming and saving the fixed route.

[0014] In embodiments of this application, the control method further includes: during the operation of the engineering vehicle, obtaining the name of the target route selected by the user through an interactive device; obtaining the target fixed route corresponding to the target route name, and determining the tire pressure associated with the target fixed route; adjusting the current tire pressure of the engineering vehicle until the difference between the tire pressure of the engineering vehicle and the tire pressure associated with the target fixed route is within a preset range.

[0015] The second aspect of this application provides a processor configured to perform any of the above-described control methods for engineering vehicles.

[0016] A third aspect of this application provides an engineering vehicle that includes the processor described above.

[0017] In embodiments of this application, the engineering vehicle further includes an interactive device for acquiring user-inputted instructions.

[0018] A fourth aspect of this application provides a machine-readable storage medium storing instructions that, when executed by a processor, cause the processor to be configured to perform any of the above-described control methods for engineering vehicles.

[0019] The above technical solution analyzes historical operating parameters to determine the relationship between road slope, vehicle speed, and tire pressure. Based on the real-time driving conditions of the engineering vehicles, it automatically adjusts the tire pressure of the engineering vehicles according to the relationship, thereby improving the climbing performance and safety of the engineering vehicles and avoiding the need for manual adjustment of tire pressure.

[0020] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present application and form part of the specification. They are used together with the following detailed description to explain the present application, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 A flowchart illustrating a control method for an engineering vehicle according to an embodiment of this application is shown schematically.

[0023] Figure 2 A schematic diagram of the structure of an engineering vehicle according to an embodiment of this application is shown.

[0024] Figure 3 The diagram illustrates the internal structure of a computer device according to an embodiment of this application. Detailed Implementation

[0025] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0026] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0028] like Figure 1 As shown, a flowchart illustrating a control method for an engineering vehicle according to an embodiment of this application is schematically presented. Figure 1 As shown, a control method for engineering vehicles is provided, including the following steps:

[0029] Step 101: Determine the relationship between road slope, vehicle speed, and vehicle tire pressure based on the vehicle's historical operating parameters;

[0030] Step 102: During the operation of the engineering vehicle, obtain the actual slope of the current road surface, the current tire pressure of the engineering vehicle, and the current vehicle speed;

[0031] Step 103: Determine the slope level corresponding to the actual slope, and determine the corresponding target tire pressure and safe speed based on the slope level and the corresponding relationship;

[0032] Step 104: If it is determined that the current vehicle speed is within a safe speed range and the difference between the current tire pressure and the target tire pressure exceeds the preset range, adjust the current tire pressure until the difference between the tire pressure of the engineering vehicle and the target tire pressure is within the preset range.

[0033] The processor can acquire historical operating parameters of the engineering vehicle, including the road slope detected by the vehicle's road inclination sensor, the vehicle speed when traversing that slope, and the tire pressure. By analyzing these historical operating parameters, the processor can determine the correspondence between road slope, vehicle speed, and tire pressure. During the engineering vehicle's operation, the processor can acquire the actual road slope. For example, the processor can acquire the actual road slope using the vehicle's road inclination sensor, along with the vehicle's current tire pressure and speed. The processor can determine the slope level corresponding to the acquired actual slope and, based on the slope level and the correspondence between road slope, vehicle speed, and tire pressure, determine the target tire pressure and safe speed corresponding to the actual slope. If the current speed is within the safe speed range and the difference between the current tire pressure and the target tire pressure exceeds a preset range, the processor can adjust the current tire pressure to ensure that the difference between the current tire pressure and the target tire pressure falls within the preset range set by the processor. If the processor determines that the engineering vehicle is not within the safe speed range, the processor can activate the vehicle overspeed alarm and provide the user with a safe speed to prompt the user to adjust to the safe speed.

[0034] In one embodiment, determining the correspondence between road slope, vehicle speed, and vehicle tire pressure based on the vehicle's historical operating parameters includes: acquiring the vehicle's historical operating parameters within a preset historical time period; filtering invalid data from the historical operating parameters, wherein invalid data refers to operating parameters that are determined to cause damage to the tires; setting multiple slope intervals and determining the slope level corresponding to each slope interval; determining a first historical operating parameter with a slope upper limit for each slope interval, the first historical operating parameter including the vehicle's operating parameters at different vehicle speeds; and analyzing the first historical operating parameter to determine the correspondence between road slope, vehicle speed, and vehicle tire pressure.

[0035] The processor can determine the correlation between road slope, vehicle speed, and tire pressure based on the vehicle's historical operating parameters. The processor can acquire historical operating parameters for a preset historical time period. This preset time period can be determined by the user; for example, the user can select one month's worth of historical operating parameters. After acquiring the historical operating parameters for the preset time period, the processor can filter out invalid data. Since the correlation between road slope, vehicle speed, and tire pressure determined by the processor must ensure the safety of the engineering vehicle and prevent tire damage, the processor needs to identify and remove operating parameters that could damage the tires as invalid data. For example, assuming the historical tire pressure is 625 kPa, and the corresponding historical vehicle load capacity is k1, based on the wheel model and the factory-set operating parameters, the maximum vehicle speed under this condition should be 5 km / h. However, the historical vehicle speed corresponding to this tire pressure reached 6 km / h, meaning this historical operating parameter was obtained under speeding conditions; therefore, this data is deemed invalid. After filtering out invalid data from historical operating parameters, the processor can set multiple slope intervals and determine the corresponding slope level for each interval. Slope intervals can be confirmed using user-input data. For the upper limit of each slope interval, the processor can determine the first historical operating parameters corresponding to the slope at the upper limit. These first historical operating parameters include the vehicle's operating parameters at different speeds. For example, assuming the user uses 5° as the slope interval, the processor can divide the historical operating parameters according to 5°. The processor can then use 0-5° as one slope level, 5-10° as another, and so on. For each slope interval, the processor can determine the first historical operating parameters corresponding to the upper limit of that interval. For example, determining the first historical operating parameters corresponding to the upper limit of 5° in the 0-5° slope interval includes the vehicle's operating parameters at different speeds with a 5° slope. After obtaining the first historical operating parameters, the processor can analyze them to determine the correspondence between road surface slope, vehicle speed, and tire pressure.

[0036] In one embodiment, analyzing first historical operating parameters to determine the correspondence between road slope, vehicle speed, and vehicle tire pressure includes: setting multiple speed ranges; for the upper limit of each speed range, determining multiple first tire pressures for the engineering vehicle when the vehicle speed is at the upper limit, and obtaining the load-bearing capacity of the engineering vehicle; determining the standard tire pressure corresponding to the upper limit speed based on the load-bearing capacity; comparing each first tire pressure with the standard tire pressure to determine the tire pressures greater than the standard tire pressure among the multiple first tire pressures as a tire pressure set, wherein the tire pressure set includes multiple second tire pressures; determining the difference between each second tire pressure and the standard tire pressure, and determining the second tire pressure with the smallest difference as the optimal tire pressure for the engineering vehicle when it is at the upper limit of slope and the upper limit of speed; determining the optimal tire pressure as the optimal tire pressure for the speed range corresponding to the upper limit speed in the slope level corresponding to the upper limit slope, thereby determining the optimal tire pressure for each speed range in the slope level corresponding to the upper limit slope.

[0037] For any given gradient range, the processor determines the vehicle's first historical operating parameters when the road surface gradient reaches the upper limit of that gradient range. These first historical operating parameters include the vehicle's operating parameters at different speeds. Based on the obtained first historical operating parameters, the processor can set multiple speed ranges. For the upper limit of each speed range, the processor can determine multiple first tire pressures corresponding to the engineering vehicle at the upper speed limit and obtain the engineering vehicle's load-bearing capacity at the upper speed limit. For example, suppose the processor sets the speed range to 1 km / h. That is, the processor can set multiple speed ranges according to 0-1 km / h, 1-2 km / h, 2-3 km / h, and so on, and determine the upper limit of each speed range. For example, the upper limit of 0-1 km / h is 1 km / h, and the upper limit of 1-2 km / h is 2 km / h. After determining the upper limit of each speed range, the processor can determine multiple first tire pressures of the engineering vehicle when the vehicle speed is at the upper limit in the first historical operating parameters. The processor can also obtain the load-bearing capacity of the engineering vehicle and determine the standard tire pressure corresponding to the engineering vehicle at the upper limit of the speed based on the load-bearing capacity of the engineering vehicle. The processor can compare multiple first tire pressures at the vehicle speed upper limit with the standard tire pressure at the same speed upper limit from the first historical operating parameters. It selects a set of tire pressures higher than the standard tire pressure from the first tire pressures. The processor can then define the tire pressure data included in this set as second tire pressures and determine the difference between each second tire pressure and the standard tire pressure. The second tire pressure with the smallest difference is determined as the optimal tire pressure for the engineering vehicle at the upper limit of the slope range and the upper limit of the speed. This process is repeated to determine the optimal tire pressure corresponding to the upper limit of the speed range for each speed interval when the vehicle is at the upper limit of the slope range. The processor can then define the determined optimal tire pressure as the optimal tire pressure for the speed interval corresponding to the upper limit of the slope, thus determining the optimal tire pressure for each speed interval within the slope level corresponding to the upper limit of the slope, thereby obtaining the correspondence between road slope, vehicle speed, and vehicle tire pressure.

[0038] For example, suppose the processor analyzes the first historical operating parameters corresponding to the upper limit of 5° in the 0-5° slope range, and processes the multiple first tire pressures corresponding to the upper limit of 3 km / h in the 2-3 km / h range of the first historical operating parameters. The processor can determine the standard tire pressure corresponding to the vehicle at 3 km / h based on the vehicle's load-bearing capacity, and the multiple first tire pressures P1, P2, P3, and P4 corresponding to 3 km / h in the first historical operating parameters. By comparing each first tire pressure with the standard tire pressure, the processor determines that P1, P2, and P3 are second tire pressures greater than the standard tire pressure. The processor can determine the difference between each second tire pressure and the standard tire pressure. Assuming that the difference between P2 and the standard tire pressure is the smallest, the processor can determine P2 as the optimal tire pressure for the vehicle in the 2-3 km / h speed range within the slope level corresponding to the 0-5° road slope.

[0039] In one embodiment, the control method further includes: acquiring the actual slope of the current road surface and the current tire pressure and current speed of the engineering vehicle; determining the climbable slope range and the drivable speed range corresponding to the current tire pressure based on the current tire pressure and the corresponding relationship; determining the slope level of the actual slope based on the actual slope when the actual slope is outside the climbable slope range; determining the target tire pressure and safe speed corresponding to the actual slope based on the slope level and the corresponding relationship; and / or issuing an overspeed warning when the actual slope is within the climbable slope range and the current speed is outside the drivable speed range.

[0040] The processor can acquire the actual slope of the current road surface and the current tire pressure and speed of the construction vehicle. Based on the correlation between road slope, vehicle speed, and tire pressure, it determines the climbable slope range and drivable speed range corresponding to the current tire pressure. When the processor determines that the actual slope of the current road surface is outside the climbable slope range, it can determine the slope level of the actual slope and, based on the corresponding slope level and correlation, determine the target tire pressure and safe speed for the vehicle. If the processor determines that the actual slope of the current road surface is within the climbable slope range, it can detect the current vehicle speed. If the current speed is within the drivable speed range, the processor can determine that the current tire pressure of the construction vehicle meets the requirements of the current road slope and is within the safe speed range. If the processor determines that the current speed is outside the safe speed range, the processor can determine that the construction vehicle is speeding and can issue a speeding warning.

[0041] In one embodiment, the engineering vehicle further includes an interactive device, and the control method further includes: receiving the gradient to be climbed and the vehicle speed requirement input by the user through the interactive device; determining the gradient level corresponding to the gradient to be climbed based on the correspondence, and determining the corresponding target tire pressure according to the gradient level and the vehicle speed requirement; adjusting the current tire pressure until the difference between the current tire pressure and the target tire pressure is within the preset range if the difference between the tire pressure and the target tire pressure of the engineering vehicle exceeds the preset range.

[0042] The engineering vehicle may include an interactive device through which users can input relevant commands. During the operation of the engineering vehicle, the user can input the required gradient and vehicle speed via the interactive device. After the processor receives the input gradient and speed requirement from the user via the interactive device, the processor can determine the gradient range corresponding to the required gradient based on the correspondence between road surface gradient, vehicle speed, and tire pressure. This determines the gradient level corresponding to the gradient range, and based on the determined gradient level and the user-input speed requirement, the processor determines the target tire pressure for the engineering vehicle. For example, assuming the user inputs an 8° gradient and a vehicle speed requirement of 4 km / h via the interactive device, the processor can determine that 8° falls within the gradient level of 5-10°. Therefore, the processor can determine the gradient level corresponding to the 5-10° gradient and the target tire pressure for the engineering vehicle at a speed of 4 km / h based on the correspondence between road surface gradient, vehicle speed, and tire pressure. After the processor determines the target tire pressure, it can compare the target tire pressure with the current tire pressure of the construction vehicle. If the difference between the current tire pressure and the target tire pressure exceeds the preset range set by the processor, the processor can adjust the current tire pressure until the difference between the tire pressure of the construction vehicle and the target tire pressure is within the preset range set by the processor.

[0043] In one embodiment, the control method further includes: after determining the target tire pressure based on the gradient to be climbed and the actual speed of the engineering vehicle input by the user, receiving a save instruction from the user through an interactive device; saving the current route as a fixed route according to the save instruction, and associating the target tire pressure determined based on the gradient to be climbed and the speed requirement input by the user with the fixed route; receiving the route name input by the user through the interactive device, naming and saving the fixed route.

[0044] The processor receives the required gradient and actual vehicle speed from the user via an interactive device. After determining the target tire pressure based on these parameters, the user can also input a save command via the interactive device. Upon receiving this command, the processor saves the current route as a fixed route and associates the target tire pressure determined based on the user-input gradient and speed with this fixed route. The user can name the saved fixed route via the interactive device. After receiving the route name from the user, the processor names and saves the saved fixed route accordingly.

[0045] In one embodiment, the control method further includes: obtaining the name of the target route selected by the user through an interactive device during the operation of the engineering vehicle; obtaining the target fixed route corresponding to the target route name and determining the tire pressure corresponding to the target fixed route; adjusting the current tire pressure of the engineering vehicle until the difference between the tire pressure of the engineering vehicle and the tire pressure corresponding to the target fixed route is within a preset range.

[0046] During the operation of the construction vehicle, the processor can obtain the name of the target route selected by the user through an interactive device. Based on the target route name, the processor can obtain the corresponding fixed route and determine the tire pressure associated with that route. After obtaining the tire pressure associated with the target route, the processor can adjust the current tire pressure of the construction vehicle until the difference between the current tire pressure and the tire pressure associated with the target route is within a preset range. For example, since construction vehicles often travel on fixed routes during operations, the user can manually input the gradient and speed requirements of the fixed route through the interactive device. The processor can then determine the target tire pressure corresponding to that fixed route based on the user's input. The user can choose to memorize this fixed route, name and store it, and associate the target tire pressure with that route. When the construction vehicle reaches this fixed route, the user only needs to select the name of the fixed route through the interactive device, and the processor can adjust the tire pressure of the construction vehicle to the tire pressure associated with that route. This allows for convenient use by different users.

[0047] In one embodiment, such as Figure 2 As shown, a structural block diagram of an engineering vehicle 200 is provided, which includes a processor 201 for a control method of the engineering vehicle.

[0048] In one embodiment, such as Figure 2As shown, the engineering vehicle 200 also includes an interactive device 202 for acquiring user input commands. The user can input commands through the interactive device 202, and after acquiring the user input commands through the interactive device 202, the processor 201 can execute corresponding operations based on the user input commands.

[0049] In one embodiment, a processor is provided, configured to execute a control method for engineering vehicles according to any one of the foregoing.

[0050] The processor can acquire historical operating parameters of the engineering vehicle, including road slope detected by the vehicle's road inclination sensor, vehicle speed when traversing that slope, and tire pressure. It then analyzes these historical parameters to determine the correlation between road slope, vehicle speed, and tire pressure. Since the correlation determined by the processor must ensure the safety of the engineering vehicle and prevent tire damage, it can identify and remove operating parameters from the historical data that could damage the tires. After filtering out invalid data, the processor can set multiple slope ranges and determine the corresponding slope level for each range. The slope ranges can be confirmed using user input. For the upper limit of each slope range, the processor can determine the first historical operating parameter corresponding to the slope at the upper limit of the range. This first historical operating parameter includes the vehicle's operating parameters at different speeds. Based on the obtained first historical operating parameters, the processor can set multiple speed ranges. For the upper limit of each speed range, the processor can determine multiple first tire pressures corresponding to the construction vehicle at the upper speed limit and obtain the load-bearing capacity of the construction vehicle at the upper speed limit. The processor can determine the standard tire pressure corresponding to the construction vehicle at the upper speed limit based on the load-bearing capacity of the construction vehicle. The processor can compare the multiple first tire pressures at the upper speed limit in the first historical operating parameters with the standard tire pressure of the vehicle at the upper speed limit, select the second tire pressure that is greater than the standard tire pressure from the first tire pressures, and determine the difference between each second tire pressure and the standard tire pressure. The second tire pressure with the smallest difference is determined as the optimal tire pressure for the construction vehicle when it is at the upper limit of the slope range and the upper speed limit. This process is repeated to determine the optimal tire pressure corresponding to the upper speed limit of each speed range when the vehicle is at the upper speed limit of the slope range. The processor can determine the optimal tire pressure as the optimal tire pressure for the speed range corresponding to the maximum speed limit when the vehicle is at the slope level corresponding to the maximum slope value. This allows the processor to determine the optimal tire pressure for each speed range within the slope level corresponding to the maximum slope value, thus obtaining the correspondence between road slope, vehicle speed, and vehicle tire pressure.

[0051] After the processor determines the correspondence between road slope, vehicle speed, and tire pressure based on historical operating parameters, it can determine the target tire pressure and safe speed corresponding to the actual road slope obtained during the vehicle's operation. The target tire pressure and safe speed determined by this correspondence are then used to adjust the vehicle's climbing ability, ensuring it can safely improve its climbing capacity.

[0052] The above technical solution analyzes historical operating parameters to determine the optimal tire pressure for engineering vehicles under different slopes, and automatically adjusts the tire pressure of the engineering vehicles to meet the optimal tire pressure, thereby improving the climbing performance and climbing safety of the engineering vehicles and avoiding the need for manual adjustment of the tire pressure.

[0053] In one embodiment, a machine-readable storage medium is provided that stores instructions that, when executed by a controller, cause the controller to be configured to perform a control method for an engineering vehicle according to any one of the foregoing.

[0054] The memory may include non-permanent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0055] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 3 As shown. The computer device includes a processor A01, a network interface A02, memory (not shown), and a database (not shown) connected via a system bus. The processor A01 provides computing and control capabilities. The memory includes internal memory A03 and a non-volatile storage medium A04. The non-volatile storage medium A04 stores an operating system B01, a computer program B02, and a database (not shown). The internal memory A03 provides an environment for the operation of the operating system B01 and the computer program B02 stored in the non-volatile storage medium A04. The database stores relevant data about the engineering machinery and data input by the operators. The network interface A02 communicates with external terminals via a network connection. When the computer program B02 is executed by the processor A01, it implements a control method for engineering vehicles.

[0056] Figure 1 This is a flowchart illustrating a control method for an engineering vehicle in one embodiment. It should be understood that, although... Figure 1The steps in the flowchart are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order in which these steps are executed, and they can be performed in other orders. Figure 1 At least some of the steps in the process may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but may be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but may be executed in turn or alternately with other steps or at least some of the sub-steps or stages of other steps.

[0057] This application provides a device including a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, it performs the following steps: determining the correspondence between road slope, vehicle speed, and vehicle tire pressure based on the vehicle's historical operating parameters; during the operation of the engineering vehicle, acquiring the actual slope of the current road surface, the current tire pressure of the engineering vehicle, and the current vehicle speed; determining the slope level corresponding to the actual slope, and determining the corresponding target tire pressure and safe speed based on the slope level and the correspondence; and adjusting the current tire pressure until the difference between the tire pressure of the engineering vehicle and the target tire pressure is within the preset range, provided that the current vehicle speed is within the safe speed range and the difference between the current tire pressure and the target tire pressure exceeds a preset range.

[0058] In one embodiment, determining the correspondence between road slope, vehicle speed, and vehicle tire pressure based on the vehicle's historical operating parameters includes: acquiring the vehicle's historical operating parameters within a preset historical time period; filtering invalid data from the historical operating parameters, wherein invalid data refers to operating parameters that are determined to cause damage to the tires; setting multiple slope intervals and determining the slope level corresponding to each slope interval; determining a first historical operating parameter with a slope upper limit for each slope interval, the first historical operating parameter including the vehicle's operating parameters at different vehicle speeds; and analyzing the first historical operating parameter to determine the correspondence between road slope, vehicle speed, and vehicle tire pressure.

[0059] In one embodiment, analyzing first historical operating parameters to determine the correspondence between road slope, vehicle speed, and vehicle tire pressure includes: setting multiple speed ranges; for the upper limit of each speed range, determining multiple first tire pressures for the engineering vehicle when the vehicle speed is at the upper limit, and obtaining the load-bearing capacity of the engineering vehicle; determining the standard tire pressure corresponding to the upper limit speed based on the load-bearing capacity; comparing each first tire pressure with the standard tire pressure to determine the tire pressures greater than the standard tire pressure among the multiple first tire pressures as a tire pressure set, wherein the tire pressure set includes multiple second tire pressures; determining the difference between each second tire pressure and the standard tire pressure, and determining the second tire pressure with the smallest difference as the optimal tire pressure for the engineering vehicle when it is at the upper limit of slope and the upper limit of speed; determining the optimal tire pressure as the optimal tire pressure for the speed range corresponding to the upper limit speed in the slope level corresponding to the upper limit slope, thereby determining the optimal tire pressure for each speed range in the slope level corresponding to the upper limit slope.

[0060] In one embodiment, the control method further includes: acquiring the actual slope of the current road surface and the current tire pressure and current speed of the engineering vehicle; determining the climbable slope range and the drivable speed range corresponding to the current tire pressure based on the current tire pressure and the corresponding relationship; determining the slope level of the actual slope based on the actual slope when the actual slope is outside the climbable slope range; determining the target tire pressure and safe speed corresponding to the actual slope based on the slope level and the corresponding relationship; and / or issuing an overspeed warning when the actual slope is within the climbable slope range and the current speed is outside the drivable speed range.

[0061] In one embodiment, the engineering vehicle further includes an interactive device, and the control method further includes: receiving the gradient to be climbed and the vehicle speed requirement input by the user through the interactive device; determining the gradient level corresponding to the gradient to be climbed based on the correspondence, and determining the corresponding target tire pressure according to the gradient level and the vehicle speed requirement; adjusting the current tire pressure until the difference between the current tire pressure and the target tire pressure is within the preset range if the difference between the tire pressure and the target tire pressure of the engineering vehicle exceeds the preset range.

[0062] In one embodiment, the control method further includes: after determining the target tire pressure based on the gradient to be climbed and the speed requirement of the engineering vehicle input by the user, receiving a save instruction from the user through an interactive device; saving the current route as a fixed route according to the save instruction, and associating the target tire pressure determined based on the gradient to be climbed and the speed requirement input by the user with the fixed route; receiving the route name input by the user through the interactive device, naming and saving the fixed route.

[0063] In one embodiment, the control method further includes: during the operation of the engineering vehicle, obtaining the name of the target route selected by the user through an interactive device; obtaining the target fixed route corresponding to the target route name and determining the tire pressure associated with the target fixed route; adjusting the current tire pressure of the engineering vehicle until the difference between the tire pressure of the engineering vehicle and the tire pressure associated with the target fixed route is within a preset range.

[0064] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0065] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0066] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0067] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0068] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0069] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0070] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media 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 memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0071] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0072] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A control method for engineering vehicles, characterized in that, The control method includes: Determine the relationship between road slope, vehicle speed, and vehicle tire pressure based on the vehicle's historical operating parameters; During the operation of the engineering vehicle, the actual slope of the current road surface, the current tire pressure of the engineering vehicle, and the current vehicle speed are obtained. Determine the slope level corresponding to the actual slope, and determine the corresponding target tire pressure and safe speed based on the slope level and the correspondence. If it is determined that the current vehicle speed is within the safe vehicle speed range and the difference between the current tire pressure and the target tire pressure exceeds a preset range, the current tire pressure is adjusted until the difference between the tire pressure of the engineering vehicle and the target tire pressure is within the preset range. Determining the relationship between road slope, vehicle speed, and vehicle tire pressure based on historical vehicle operating parameters includes: Obtain the historical operating parameters of the vehicle within a preset historical time period; Filter out invalid data from the historical operating parameters, wherein the invalid data are operating parameters that are determined to cause damage to the tires; Set multiple slope ranges and determine the slope grade corresponding to each slope range; For the upper limit of each slope range, a first historical operating parameter is determined with the slope as the upper limit value. The first historical operating parameter includes the vehicle's operating parameters at different vehicle speeds. The first set of historical operating parameters are analyzed to determine the relationship between road slope, vehicle speed, and vehicle tire pressure. The analysis of the first historical operating parameters to determine the correspondence between road surface slope, vehicle speed, and vehicle tire pressure includes: Multiple speed ranges are set, and for the upper limit of each speed range, multiple first tire pressures of the engineering vehicle are determined when the vehicle speed is the upper limit of the speed range, and the load-bearing capacity of the engineering vehicle is obtained. Determine the standard tire pressure corresponding to the upper speed limit value based on the load-bearing capacity; Each first tire pressure is compared with the standard tire pressure to determine the vehicle tire pressures that are greater than the standard tire pressure among the plurality of first tire pressures as a tire pressure set, wherein the tire pressure set includes a plurality of second tire pressures; Determine the difference between each second tire pressure and the standard tire pressure, and determine the second tire pressure with the smallest difference as the optimal tire pressure for the engineering vehicle when it is at the upper limit of the slope and the upper limit of the speed. The optimal tire pressure is determined as the optimal tire pressure for the speed range corresponding to the speed limit value within the slope grade corresponding to the slope limit value, thereby determining the optimal tire pressure for each speed range within the slope grade corresponding to the slope limit value.

2. The control method for engineering vehicles according to claim 1, characterized in that, The control method further includes: Obtain the actual slope of the current road surface and the current tire pressure and current speed of the engineering vehicle; Based on the current tire pressure and the corresponding relationship, determine the climbability range and driving speed range corresponding to the current tire pressure; If the actual slope is outside the climbable slope range, the slope level of the actual slope is determined based on the actual slope. Determine the target tire pressure and safe speed corresponding to the actual slope based on the slope level and the corresponding relationship; and / or If the actual slope is within the climbable slope range and the current vehicle speed is outside the drivable speed range, an overspeed warning will be issued.

3. The control method for engineering vehicles according to claim 1, characterized in that, The engineering vehicle also includes an interactive device, and the control method further includes: The interactive device receives the user's input of the gradient to be climbed and the vehicle speed requirement of the engineering vehicle. Based on the correspondence, the slope grade corresponding to the slope to be climbed is determined, and the target tire pressure is determined according to the slope grade corresponding to the slope to be climbed and the vehicle speed requirement. If the difference between the current tire pressure and the target tire pressure exceeds a preset range, adjust the current tire pressure until the difference between the tire pressure of the engineering vehicle and the target tire pressure is within the preset range.

4. The control method for engineering vehicles according to claim 3, characterized in that, The control method further includes: After determining the target tire pressure based on the slope to be climbed input by the user and the speed requirement of the engineering vehicle, the user's save command is received through the interactive device; According to the save instruction, the current route is saved as a fixed route, and the target tire pressure determined according to the gradient to be climbed and the vehicle speed requirement input by the user is associated with the fixed route; The interactive device receives the route name input by the user, names the fixed route, and saves it.

5. The control method for engineering vehicles according to claim 4, characterized in that, The control method further includes: During the operation of the engineering vehicle, the name of the target route selected by the user is obtained through the interactive device; Obtain the target fixed route corresponding to the target route name, and determine the tire pressure associated with the target fixed route; Adjust the current tire pressure of the engineering vehicle until the difference between the tire pressure of the engineering vehicle and the tire pressure associated with the target fixed route is within the preset range.

6. A processor, characterized in that, It is configured to perform the control method for engineering vehicles according to any one of claims 1 to 5.

7. An engineering vehicle, characterized in that, The engineering vehicle includes the processor as described in claim 6.

8. The engineering vehicle according to claim 7, characterized in that, The engineering vehicles also include: An interactive device used to obtain instructions from the user.

9. A machine-readable storage medium storing instructions thereon, characterized in that, When executed by a processor, the instruction causes the processor to be configured to perform the control method for engineering vehicles according to any one of claims 1 to 5.

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