Self-adaptive adjustment control system and method for carriage capacity of dump truck

Abstract

The invention provides a self-adaptive adjustment control system and method for the carriage capacity of a dump truck, and belongs to the technical field of carriage capacity adjustment. The self-adaptive adjustment control system comprises a front suspension cylinder pressure sensor, a rear suspension cylinder pressure sensor, sensing equipment, a lifting oil cylinder, an adjustable baffle and an electronic control unit; the front suspension cylinder pressure sensors are arranged on left and right suspension cylinders at the front end of a vehicle, and the rear suspension cylinder pressure sensors are arranged on left and right suspension cylinders at the rear end of the vehicle and used for acquiring pressure values of the front and rear suspension cylinders; the sensing equipment is arranged at a roof position and is used for acquiring a material boundary position in a carriage; the lifting oil cylinder is connected with the electronic control unit and is used for lifting the adjustable baffle; the adjustable baffles are arranged on the left side and the right side of the compartment respectively and used for adjusting the capacity of the compartment. According to the invention, the self-adaptive adjustment of the carriage capacity is realized under the condition of no parking, and the carrying efficiency and the transportation safety are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of carriage capacity adjustment, and particularly relates to a self - adaptive adjustment control system and method for the carriage capacity of a dump truck. Background Art

[0002] The statements in this part only provide background technical information related to the present invention, and do not necessarily constitute prior art.

[0003] The mining dump truck is the main equipment for large - scale open - pit mine transportation, usually used for the stripping and transportation of earth and rock on the surface of the ore layer and the transportation of related ores. Since the density of earth and rock is generally 1.6 - 1.8 tons per cubic meter, and the density of ores varies greatly. For example, the density of coal is 0.65 - 0.85 tons per cubic meter, the density of chalcopyrite is 4.1 - 4.3 tons per cubic meter, and the density of tenorite is 5.8 - 6.4 tons per cubic meter. Due to the different densities of various materials, the volume of materials under the same weight is also different.

[0004] To solve this problem, most of the existing technologies adopt the solution of customized carriages, using the form of one material corresponding to one transport carriage. The customized carriages result in multiple optional configurations of carriages with different specifications for mining dump trucks of the same load capacity. If a vehicle wants to transport materials with different densities, it must replace the carriage. If the corresponding capacity carriage is not replaced in time, it may also cause safety accidents due to overloading or low transport efficiency due to insufficient transport quality. For example, when using a sand and gravel carriage to transport materials with a larger density, it may cause safety accidents due to overloading, or when using a sand and gravel carriage to transport materials with a smaller density such as coal, it may cause low transport efficiency due to insufficient transport quality.

[0005] Furthermore, to meet the load requirements of mining dump trucks, the carriages are usually designed to be relatively large, with a capacity ranging from dozens of cubic meters to 140 or 150 cubic meters, and their own weight is also dozens of tons. Usually, large lifting equipment and professional equipment maintenance personnel are required to complete the replacement work in 3 - 5 days. For newly purchased carriages, on - site welding work is also required, which will further extend the replacement time. Therefore, the existing technology also has the problem of consuming a lot of manpower and time for capacity adjustment. Summary of the Invention

[0006] To overcome the above - mentioned deficiencies of the existing technology, the present invention proposes a self - adaptive adjustment control system and method for the carriage capacity of a dump truck, which can realize the self - adjustment of the carriage capacity of the dump truck according to the ore density. When the density of the transported material changes, there is no need to stop and replace the carriage, thus avoiding vehicle safety accidents or low transport efficiency caused by untimely replacement of the cargo box due to the change of the transported material.

[0007] To achieve the above object, one or more embodiments of the present invention provide the following technical solutions: In a first aspect, an automatic adjustment control system for the loading capacity of a dump truck carriage is disclosed, including: A front suspension cylinder pressure sensor, a rear suspension cylinder pressure sensor, a sensing device, a lifting cylinder, an adjustable baffle, and an electronic control unit; The front suspension cylinder pressure sensor is arranged on the left and right suspension cylinders at the front end of the vehicle, and the rear suspension cylinder pressure sensor is arranged on the left and right suspension cylinders at the rear end of the vehicle. Both the front suspension cylinder pressure sensor and the rear suspension cylinder pressure sensor are connected to the electronic control unit through shielded cables for obtaining the pressure values of the front and rear suspension cylinders; The sensing device is arranged at the roof position for obtaining the position of the material boundary inside the carriage; The fixed end of the lifting cylinder is arranged on the left and right sides of the basic carriage, and its movable end is arranged on the left and right sides of the adjustable baffle. The electronic control unit controls the solenoid valve on the hydraulic pump to extend and retract the lifting cylinder of the adjustable baffle, so as to lift and lower the adjustable baffle; One adjustable baffle is arranged on each of the left and right sides of the carriage for adjusting the loading capacity of the carriage.

[0008] In a further technical solution, the automatic adjustment control system for the loading capacity of the dump truck carriage further includes: a function selection knob, which is arranged inside the cab and connected to the electronic control unit for adjusting the functions of the locked and automatic gears.

[0009] In a further technical solution, the automatic adjustment control system for the loading capacity of the dump truck carriage further includes: an audible and visual alarm, which includes an in-vehicle audible and visual alarm arranged in the cab and an external vehicle audible and visual alarm arranged on the left and right sides at the front end of the basic carriage outside the vehicle. The in-vehicle audible and visual alarm is used to remind the driver and passengers of the loading state of the carriage, and the external vehicle audible and visual alarm is used to remind the loading personnel of the loading state of the carriage.

[0010] In a further technical solution, the automatic adjustment control system for the loading capacity of the dump truck carriage further includes: an angle sensor, which is arranged at a position parallel to the horizontal ground relative to the whole machine platform.

[0011] In a second aspect, an automatic adjustment control method for the loading capacity of a dump truck carriage is disclosed, including: The electronic control unit controls the lifting cylinder to contract along the inclined direction of the cylinder to the shortest state of the cylinder, and lowers the adjustable baffle to be flush with the upper edge of the basic carriage; The electronic control unit collects the pressure values of the front suspension cylinder pressure sensor and the rear suspension cylinder pressure sensor, and obtains the real-time weight of the goods in the carriage through an internal conversion formula; at the same time, the sensing device obtains the distance between the edge of the goods in the carriage and the upper edge of the adjustable baffle in real time; Control the lifting oil cylinder of the adjustable baffle to lift the adjustable baffle according to the distance and the real-time weight of the goods in the carriage, and adjust the carriage capacity.

[0012] A further technical solution is that the real-time weight of the goods in the carriage is obtained through an internal conversion formula, specifically:

[0013] Wherein, 、 、 、 are the pressures of the four suspension cylinders at the front left, front right, rear left, and rear right respectively; 、 are the internal cross-sectional areas of the front suspension cylinder and the rear suspension cylinder respectively; 、 are the correction coefficients of the front and rear suspension cylinders respectively; is the total correction coefficient.

[0014] A further technical solution is to judge whether to adjust the lifting oil cylinder according to the distance between the edge of the goods in the carriage and the adjustable baffle; If the distance from the edge of the goods to the upper edge of the adjustable baffle is greater than the preset distance value, the system remains unchanged and there is no action; If the distance from the edge of the goods to the upper edge of the adjustable baffle is less than the preset distance value, the electronic control unit controls the lifting of the adjustable baffle lifting oil cylinder to keep the upper edge of the adjustable baffle always higher than the edge of the goods, and the distance between the edge of the goods and the adjustable baffle is greater than the preset distance value.

[0015] A further technical solution is to adjust the lifting oil cylinder until the load weights feedback by the front and rear suspension cylinder pressure sensors reach the system weight preset value.

[0016] A further technical solution is that when the carriage load reaches the system weight preset value, the electronic control unit controls the internal and external vehicle sound and light alarms in the vehicle to alarm, respectively prompting the driver and the external loading personnel that the vehicle has reached the rated load.

[0017] A further technical solution is that when an angle sensor is added in a sloped loading environment, the real-time loading mass of the carriage is calculated as:

[0018] Wherein, 、 、 、 are the pressures of the four suspension cylinders at the front left, front right, rear left, and rear right respectively; 、 are the internal cross-sectional areas of the front suspension cylinder and the rear suspension cylinder respectively; 、 are the correction coefficients of the front and rear suspension cylinders respectively; is the total correction coefficient; α and β are the measured angle values of the X-axis and Y-axis of the biaxial angle sensor.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a self-adaptive adjustment control system for the carriage capacity of a dump truck, which can realize the self-adjustment of the carriage capacity of the dump truck according to the ore density. When the density of the transported material changes, there is no need to stop and replace the carriage, thus avoiding vehicle safety accidents or low transportation efficiency caused by untimely replacement of the cargo box due to the change of the transported material. The present invention calculates the load of the carriage in real time through the front and rear suspension cylinder pressure sensors and the internal calculation formula, and adaptively adjusts the height of the baffle according to the load and the distance between the cargo edge and the upper edge of the carriage, so as to realize the increase or decrease of the carriage capacity within a certain range.

[0020] The present invention can switch the carriage capacity adapted to the transported material at any time without manual or parking adjustment, thus greatly improving the transportation efficiency and safety of the vehicle.

[0021] This control system and control method have not been used in the existing dump trucks of domestic and foreign manufacturers. It can adjust the volume of the cargo box at any time according to the change of the density of the transported material within the vehicle load range, thus greatly improving the transportation efficiency and safety of the vehicle.

[0022] The advantages of the additional aspects of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The specification drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0024] Figure 1 It is a schematic structural diagram of the self-adaptive adjustment control system for the carriage capacity of the dump truck described in Embodiment 1 of the present invention.

[0025] Figure 2 It is a flowchart of the self-adaptive adjustment control method for the carriage capacity of the dump truck described in Embodiment 2 of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0026] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention.

[0028] In the case of no conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0029] Explanation of related terms: Dump truck for mining: The dump truck for mining belongs to a kind of non-road mining transport vehicle and is widely used in the surface stripping and ore transportation work of large open-pit sand and gravel mines, metal mines, and coal mines.

[0030] Carriage capacity adaptive adjustment system: The carriage capacity will be adaptively controlled according to the density of the carried material, so as to adjust the carriage capacity by itself on the premise of ensuring the vehicle's total transportation weight.

[0031] Control strategy: The control strategy refers to a series of plans, measures, and actions taken to achieve the goal of adaptive adjustment of the carriage capacity.

[0032] Embodiment 1 The existing dump truck structures all adopt the form of one kind of material corresponding to one kind of carrying carriage. Whether it is a traditional rigid mining truck or a wide-body dump truck, when the same vehicle needs to change the carried material, especially when the density of the material changes greatly, it is necessary to replace the vehicle's cargo box. Because the load capacity of the vehicle is fixed, when changing from a material with a higher density to a material with a lower density, it is usually necessary to replace the carriage with a larger capacity, and vice versa. When using a carriage with a larger capacity to carry materials with a large density, there are often safety hazards caused by vehicle overload. On the contrary, when using a carriage with a smaller capacity to carry materials with a small density, the transportation efficiency will be reduced, and the economy will be greatly discounted. The dump trucks for mining are generally quite large, and it is time-consuming and laborious to replace the carriage frequently.

[0033] In one or more embodiments, a control system for adaptive adjustment of the dump truck carriage capacity is disclosed, aiming to perform self-adjustment and related control of the carriage capacity without stopping, so as to improve the transportation efficiency of the mining party. At the level of the main engine factory, there is no need to carry out customized carriage design and manufacturing according to the density of different ores, thus greatly improving the standardization level of the product, improving the product quality, and reducing the production cost.

[0034] A control system for adaptive adjustment of the dump truck carriage capacity, as Figure 1 shown, specifically includes: Function selection knob 1, vehicle internal audible and visual alarm 2, front suspension cylinder pressure sensor 3, sensing device 4, vehicle external audible and visual alarm 5, adjustable baffle lifting oil cylinder 6, adjustable baffle 7, rear suspension cylinder pressure sensor 8, basic carriage 9, and electronic control unit ECU; The function selection knob 1 is set inside the cab and is connected to the electronic control unit ECU. Its functions include two gear functions: locking and automatic. Both the vehicle internal sound and light alarm 2 and the vehicle external sound and light alarm 5 are connected to the electronic control unit ECU. The vehicle internal sound and light alarm 2 is set inside the cab to remind the driver and passengers of the loading status of the carriage. The vehicle external sound and light alarm 5 is set on the left and right sides at the front end of the basic carriage outside the vehicle to remind the loading personnel of the loading status of the carriage. For the front suspension cylinder pressure sensors 3, one pressure sensor is set on each of the left and right front suspension cylinders of the vehicle and is connected to the electronic control unit through a shielded cable to obtain the front suspension cylinder pressure value. The sensing device 4 is set at the roof position and is connected to the electronic control unit ECU through a data transmission device to obtain the position of the material boundary inside the carriage and get the distance between the edge of the material inside the carriage and the upper edge of the adjustable baffle. In this embodiment, the sensing device 4 uses a 3D point cloud camera. For the adjustable baffle lifting cylinder 6, the fixed end is set on the left and right sides of the basic carriage, and its movable end is fixedly connected to the left and right sides of the adjustable baffle. It receives the control signal of the electronic control unit ECU through the solenoid valve on the connected hydraulic pump to obtain the lifting instruction, and is used to lift the adjustable baffle 7 within a certain range to adjust the capacity of the carriage. There is one adjustable baffle 7 on each of the left and right sides of the carriage. Its function is to cooperate with the adjustable baffle lifting cylinder 6 to increase or decrease the capacity of the carriage within a certain range. For the rear suspension cylinder pressure sensors 8, one pressure sensor is set on each of the left and right rear suspension cylinders of the vehicle. The sensor is fixed on the upper part of the rear suspension cylinder, and the detection part is communicated with the inner cavity of the suspension cylinder and is connected to the electronic control unit through a shielded cable to obtain the rear suspension cylinder pressure value. The basic carriage 9 is an inadjustable capacity carriage part with the minimum capacity calculated according to the material with the highest vehicle load density.

[0035] In this embodiment, the front suspension cylinder pressure sensors 2 and the rear suspension cylinder pressure sensors 5 are used to detect the pressure of the front and rear suspension cylinders. Through the algorithms set in the system and the physical structure dimensions of the front and rear suspension cylinders, the mass of the goods in the carriage can be detected in real time. This method is only applicable when the vehicle is on a straight road. Optionally, in a loading environment with a slope, an angle sensor can be added to detect the body state. The angle sensor is set at a position parallel to the horizontal ground such as the whole machine platform to improve the detection accuracy.

[0036] In this embodiment, the method for detecting the material boundary of the carriage is the method of using a 3D point cloud camera installed on the roof for detection. Optionally, other optoelectronic induction methods can also be used. For example, an infrared sensor can be set at the preset height of the adjustable baffle. When the edge of the material blocks the infrared transmission path, the distance between the edge of the goods and the adjustable baffle can also be obtained.

[0037] In this embodiment, when the vehicle reaches the maximum carrying mass, an audible and visual alarm inside and outside the cab will be used to remind the vehicle driver and external loading personnel to make function selections and stop loading. Optionally, the control system further includes a terminal device. The real-time loading status of the vehicle is transmitted to the terminal device through 4G or 5G wireless communication means, enabling the vehicle driver and external loading personnel to obtain the real-time status of the vehicle.

[0038] This embodiment provides a control system for self-adjusting the carriage capacity without stopping the vehicle, thereby improving the transportation efficiency of the mining party and reducing potential safety hazards. At the original equipment manufacturer level, there is no need to customize the carriage design and manufacturing according to the density of different ores, thus greatly improving the standardization level of the product, enhancing product quality, and reducing production costs.

[0039] Embodiment 2 In one or more embodiments, a control method for self-adaptive adjustment of the dump truck carriage capacity is disclosed. As Figure 2 shown, it specifically includes: Step S0: Determine whether it is necessary to change the density of the transported material. If not, the function selection knob 1 in the cab remains locked; if so, before the next loading, rotate the function selection knob 1 in the cab to the AUTO automatic mode and proceed to step S1. Step S1: The electronic control unit ECU controls the adjustable baffle lifting oil cylinder 6 to contract, causing the adjustable baffle 7 to lower to the same level as the upper edge of the basic carriage 9. At this time, the entire carriage capacity is the lowest. Step S2: The electronic control unit ECU collects the pressure values of the front suspension cylinder pressure sensor 3 and the rear suspension cylinder pressure sensor 8, and obtains the real-time weight of the goods in the carriage through an internal conversion formula. The internal conversion formula is specifically:

[0040] Among them, and and and are the pressures of the four suspension cylinders on the left front, right front, left rear, and right rear (looking forward from the rear of the vehicle body), respectively; and are the internal cross-sectional areas of the front suspension cylinder and the rear suspension cylinder, respectively; and are the correction coefficients of the front and rear suspension cylinders, respectively; is the total correction coefficient.

[0041] Meanwhile, the 3D point cloud camera 4 monitors the distance between the edge of the goods in the carriage and the adjustable baffle 7 in real time; Step S3: Determine whether to adjust the adjustable baffle lifting oil cylinder 6 according to the distance between the edge of the goods in the carriage and the adjustable baffle 7; If the distance from the edge of the goods to the adjustable baffle is greater than the preset distance value, the system remains unchanged and there is no action; If the distance from the edge of the goods to the adjustable baffle is less than the preset distance value, go to step S4; Step S4: The electronic control unit ECU controls the adjustable baffle lifting oil cylinder 6 to lift; so that the upper edge of the adjustable baffle is always higher than the edge of the goods, and the distance between the edge of the goods and the adjustable baffle is greater than the preset distance value, until the load weights feedback by the front and rear suspension cylinder pressure sensors reach the system weight preset value; Step S5: The electronic control unit ECU controls the internal and external vehicle sound and light alarms 2 and 5 to alarm, respectively prompting the driver and external loading personnel that the vehicle has reached the rated load; the function selection knob is turned to the locking mode, and the external loading personnel should stop the loading work. Without changing the density of the transported material, the function selection knob 1 can always be kept in the locked state until the transported material of the vehicle changes again, and the above operations are repeated.

[0042] In this embodiment, the entire control system only requires the driver and passengers to intervene in the function selection. When the driver and passengers receive the instruction to change the type of transported material, before the next loading of the whole vehicle, the carriage capacity lock position can be adjusted to the automatic adjustment position through the function selection knob inside the cab. The subsequent capacity adjustment is controlled by the vehicle electronic control unit ECU and the internal control method. The ECU collects the pressure values of the front and rear suspension cylinders and the internal conversion relationship between the pressure and the cargo box mass, and detects the loading mass of the cargo box in real time. It also detects the height of the edge of the goods in the cargo box from the upper edge of the carriage in real time through the 3D point cloud camera installed on the top of the cargo box. When the vehicle has not reached the rated load and the distance from the edge of the material to the upper edge of the carriage is less than the system preset value, the system automatically increases the carriage capacity until the vehicle reaches the maximum allowable load weight. The system uses the internal and external sound and light alarm mechanisms to remind the driver and passengers and external loading personnel that the vehicle is fully loaded.

[0043] In this embodiment, the adaptive control system and control method accurately regulate the relationship between the carriage capacity and the carriage load through relevant pressure and image real-time detection devices, achieving the purpose of not needing to replace the carriage when changing the density of the transported material. The control system and control strategy disclosed in the present invention have not been used by domestic and foreign manufacturers, and can automatically adjust the volume of the cargo box according to the change of the density of the transported material within the vehicle load range at any time, thus greatly improving the transportation efficiency and transportation safety of the vehicle.

[0044] Optionally, when an angle sensor is added, the real-time loading mass of the carriage is calculated as follows:

[0045] Wherein, 、 、 、 are the pressures of the four suspension cylinders at the left front, right front, left rear, and right rear respectively (looking forward from the rear of the vehicle body); 、 are the inner cross-sectional areas of the front suspension cylinder and the rear suspension cylinder respectively; 、 are the correction factors of the front and rear suspension cylinders respectively; is the total correction factor; α and β are the measured angle values of the X-axis and Y-axis of the biaxial angle sensor.

[0046] Optionally, when an infrared sensor is set at the preset height of the adjustable baffle, in step S2, the infrared sensor obtains that the edge of the goods blocks the infrared transmission path, so as to realize the subsequent electronic control unit ECU to control the adjustable baffle to lift until the total vehicle load reaches the system preset value.

[0047] In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0048] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An adaptive adjustment control system for the carriage capacity of a dump truck, characterized in that Including: Front suspension cylinder pressure sensor, rear suspension cylinder pressure sensor, sensing device, lifting cylinder, adjustable baffle and electronic control unit; The front suspension cylinder pressure sensor is arranged on the left and right suspension cylinders at the front end of the vehicle, and the rear suspension cylinder pressure sensor is arranged on the left and right suspension cylinders at the rear end of the vehicle. Both the front suspension cylinder pressure sensor and the rear suspension cylinder pressure sensor are connected to the electronic control unit through shielded cables for obtaining the pressure values of the front and rear suspension cylinders; The sensing device is arranged at the roof position for obtaining the boundary position of the materials inside the carriage; The fixed end of the lifting cylinder is arranged on the left and right sides of the basic carriage, and its movable end is fixedly connected to the left and right sides of the adjustable baffle. It receives the control signal of the electronic control unit ECU through the solenoid valve on the connecting hydraulic pump to obtain the lifting instruction for lifting and lowering the adjustable baffle; One adjustable baffle is arranged on each of the left and right sides of the carriage for adjusting the capacity of the carriage.

2. The self-dumping truck carriage capacity adaptive adjustment control system according to claim 1, characterized in that, Also including: Function selection knob, which is arranged inside the cab and connected to the electronic control unit for adjusting the functions of two gears of locking and automatic.

3. The self-unloading truck carriage capacity adaptive adjustment control system according to claim 1, characterized in that Also including: Acoustic and optical alarm, which includes an in-vehicle acoustic and optical alarm arranged in the cab and an external vehicle acoustic and optical alarm arranged at the left and right sides of the front end of the basic carriage outside the vehicle. The in-vehicle acoustic and optical alarm is used to remind the driver and passengers of the loading state of the carriage, and the external vehicle acoustic and optical alarm is used to remind the loading personnel of the loading state of the carriage.

4. The self-dumping truck carriage capacity adaptive adjustment control system according to claim 1, characterized in that, Also including: Angle sensor, which is arranged at a position parallel to the horizontal ground such as on the whole machine platform.

5. A control method for adaptively adjusting the carriage capacity of a dump truck, characterized in that, Including: The electronic control unit controls the lifting cylinder to contract along the inclined direction of the cylinder to the shortest state of the cylinder, and lowers the upper edge of the adjustable baffle to be flush with the upper edge of the basic carriage; The electronic control unit collects the pressure values of the front suspension cylinder pressure sensor and the rear suspension cylinder pressure sensor, and obtains the real-time weight of the goods in the carriage through the internal conversion formula; at the same time, the sensing device obtains the distance between the goods edge in the carriage and the adjustable baffle in real time; According to the distance and the real-time weight of the goods in the carriage, control the lifting cylinder of the adjustable baffle to lift the adjustable baffle to adjust the capacity of the carriage.

6. The self-dumping truck carriage capacity adaptive adjustment control method according to claim 5, wherein, The real-time weight of the goods in the carriage obtained through the internal conversion formula is specifically: Among them, , , , are the pressures of the four suspension cylinders of the left front, right front, left rear, and right rear respectively; , are the internal cross-sectional areas of the front suspension cylinder and the rear suspension cylinder respectively; , are the correction coefficients of the front and rear suspension cylinders respectively; is the total correction coefficient.

7. A method for adaptively adjusting and controlling the compartment capacity of a dump truck according to claim 5, characterized in that, Judge whether to adjust the lifting cylinder according to the distance between the goods edge in the carriage and the adjustable baffle; If the distance from the goods edge to the adjustable baffle is greater than the preset distance value, the system remains unchanged and there is no action; If the distance from the goods edge to the adjustable baffle is less than the preset distance value, the electronic control unit controls the lifting cylinder of the adjustable baffle to lift, keeping the upper edge of the adjustable baffle always higher than the goods edge, and the distance between the goods edge and the adjustable baffle is greater than the preset distance value.

8. A self-unloading truck carriage capacity adaptive adjustment control method according to claim 7, characterized in that, Adjust the lifting cylinder until the load weight feedback by the front and rear suspension cylinder pressure sensors reaches the preset system weight value.

9. A self-dumping truck carriage capacity adaptive adjustment control method according to claim 7, characterized in that, When the load weight of the carriage reaches the preset system weight value, the electronic control unit controls the in-vehicle acoustic and optical alarm and the external vehicle acoustic and optical alarm of the vehicle to alarm, respectively reminding the driver and the external loading personnel that the vehicle has reached the rated load.

10. A self-dumping truck carriage capacity adaptive adjustment control method according to claim 5, characterized in that, When adding an angle sensor in a sloped loading environment, the real-time loading mass of the carriage is calculated as: Among them, , , , are the pressures of the four suspension cylinders of the left front, right front, left rear, and right rear respectively; , are the internal cross-sectional areas of the front suspension cylinder and the rear suspension cylinder respectively; , are the correction factors of the front and rear suspension cylinders respectively; is the total correction factor; α and β are the measured angle values of the X-axis and Y-axis of the biaxial angle sensor.

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