A power supply control system and method for diaphragm wall construction equipment

Abstract

This invention relates to the field of engineering machinery technology and discloses a power supply control system and method for continuous wall construction equipment. The system, used in the working environment of continuous wall construction equipment, includes: a high-voltage power distribution unit for determining the total operating power required for the current operation of the continuous wall construction equipment; the high-voltage power distribution unit is also used to control the on-board charger and / or power battery to perform a first power supply control operation on the motor controller based on the total operating power; the motor controller, under the power supply control of the high-voltage power distribution unit, is used to control the pump motor to provide power to the hydraulic system of the entire machine and to control the winch motor to provide power to the winch system; the motor controller is also used to detect the current state of the winch motor and, based on the current state of the winch motor and the total operating power, control the high-voltage power distribution unit to perform a second power supply control operation. Therefore, implementing this invention can improve the power supply efficiency and accuracy of continuous wall grabs, and is beneficial for reducing resource waste.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, and in particular to a power supply control system and method for continuous wall construction equipment. Background Technology

[0002] A diaphragm wall is a foundation engineering project where a trenching machine is used on the ground to excavate a narrow, deep trench along the perimeter of the deep excavation project, under the condition of mud slurry wall protection. After cleaning the trench, a steel cage is suspended in the trench, and then underwater concrete is poured using the tremie method to form a unit trench segment. This process is repeated segment by segment to build a continuous reinforced concrete wall underground, which serves as a water-stopping, retaining, maintenance, and load-bearing structure.

[0003] Currently, most continuous wall grabs on the market use engines as their power source. The engine burns fuel to generate kinetic energy, which drives a hydraulic pump. The hydraulic system uses components such as hydraulic pumps, valve groups, hydraulic motors, and hydraulic cylinders to realize the various functions of the entire machine. Among them, the hydraulic motor drives the winch to wind the wire rope, and the wire rope drives the working system to realize the lifting and lowering of the working system.

[0004] However, practice has shown that engines typically produce exhaust emissions during operation, requiring purification; and the braking system converts kinetic energy into heat energy, consuming energy for dissipation, which easily leads to energy waste. In other words, the traditional method of powering the continuous wall grab bucket with an engine not only provides kinetic energy but also requires adjustments based on environmental changes during power supply, easily resulting in resource waste. Therefore, proposing a new power supply scheme for continuous wall grab buckets to reduce resource waste is particularly important. Summary of the Invention

[0005] This invention provides a power supply control system and method for continuous wall construction equipment. Compared with the existing power supply method that uses an engine as the power source, the new power supply method can not only improve the power supply efficiency and accuracy of the continuous wall grab bucket, but also reduce resource waste.

[0006] To address the aforementioned technical problems, the first aspect of this invention discloses a power supply control system for a continuous wall construction equipment. The system is applied in the working environment of the continuous wall construction equipment, and the system includes:

[0007] A high-voltage power distribution unit is used to determine the total operating power required for the current operation of the continuous wall construction equipment.

[0008] The high-voltage power distribution unit is also used to control the on-board charger and / or the power battery in the battery management system to perform a first power supply control operation on the motor controller according to the overall operating power of the machine.

[0009] The motor controller is used, under the power supply control of the high-voltage power distribution unit, to control the pump motor to provide power to the hydraulic system of the continuous wall construction equipment, and to control the winch motor to provide power to the winch device of the continuous wall construction equipment.

[0010] The motor controller is also used to detect the current status of the hoist motor, and execute a second power supply control operation through the high-voltage power distribution unit based on the current status of the hoist motor and the overall operating power.

[0011] As an optional implementation, in the first aspect of the present invention, the high-voltage power distribution unit controls the on-board charger and / or the power battery in the battery management system to perform a first power supply control operation on the motor controller according to the overall operating power of the machine, specifically including:

[0012] Based on the overall operating power, the power source corresponding to the motor controller is determined. The power source includes the on-board charger, or the power source includes the on-board charger and the power battery in the battery management system.

[0013] When the power source includes the on-board charger, the first electrical energy received from the on-board charger is provided to the motor controller and the power battery.

[0014] When the power source includes the on-board charger and the power battery, the first electrical energy corresponding to the on-board charger and the second electrical energy received from the power battery are provided to the motor controller.

[0015] As an optional implementation, in the first aspect of the present invention, the method by which the high-voltage power distribution unit determines the power source corresponding to the motor controller based on the overall operating power specifically includes:

[0016] When the overall operating power of the machine is the first preset power, the on-board charger is determined as the power source corresponding to the motor controller;

[0017] When the overall operating power is the second preset power, the on-board charger and the power battery are determined as the power source corresponding to the motor controller, and the second preset power is greater than the first preset power.

[0018] As an optional implementation, in the first aspect of the present invention, the method by which the motor controller performs a second power supply control operation through the high-voltage power distribution unit based on the current state of the hoisting motor and the overall operating power of the machine specifically includes:

[0019] When the current state of the hoisting motor is the preset hoisting lifting state, the high-voltage power distribution unit is controlled to perform the operation of providing the first electrical energy corresponding to the on-board charger and the second electrical energy output by the power battery to the motor controller.

[0020] When the current state of the hoisting motor is the preset hoisting lowering state, determine whether the overall operating power is the first preset power;

[0021] When it is determined that the overall operating power of the machine is the first preset power, the hoist motor is controlled to perform the third power supply control operation.

[0022] As an optional implementation, in the first aspect of the present invention, the method by which the motor controller controls the hoist motor to perform a third power supply control operation specifically includes:

[0023] Control the hoist motor to enter the power generation state, and receive the initial energy output by the hoist motor in the power generation state;

[0024] The initial energy is converted from gravitational potential energy into electrical energy to obtain the target energy, and the target energy is provided to the high-voltage power distribution unit.

[0025] As an optional implementation, in the first aspect of the invention, the high-voltage power distribution unit is further configured to:

[0026] Receive the target energy output by the motor controller, and detect the first charging demand state of the power battery and the second charging demand state of the pump motor;

[0027] Based on the first charging demand state and the second charging demand state, the power supply object of the target energy is selected from the power battery and the pump motor;

[0028] The target energy output by the motor controller is provided to the power supply object.

[0029] As an optional implementation, in the first aspect of the invention, the high-voltage power distribution unit is further configured to:

[0030] The system receives a first DC voltage output from the on-board charger and directs the first DC voltage to a DC-DC conversion module, triggering the DC-DC conversion module to convert the first DC voltage into a second DC voltage. The first DC voltage is obtained by the on-board charger from converting the received AC voltage.

[0031] The system receives the second DC voltage output from the DC-DC conversion module and determines the second DC voltage as the basis for the high-voltage power distribution unit to perform the first power supply control operation.

[0032] A second aspect of this invention discloses a power supply control method for a diaphragm wall construction device, the method being applied in the working environment of the diaphragm wall construction device, and the method comprising:

[0033] The high-voltage power distribution unit determines the total operating power required for the current operation of the continuous wall construction equipment;

[0034] The high-voltage power distribution unit controls the on-board charger and / or the power battery in the battery management system to perform a first power supply control operation on the motor controller according to the overall operating power of the machine.

[0035] Under the power supply control of the high-voltage power distribution unit, the motor controller controls the pump motor to provide power to the hydraulic system of the continuous wall construction equipment, and controls the winch motor to provide power to the winch device of the continuous wall construction equipment.

[0036] The motor controller detects the current status of the hoist motor and, based on the current status of the hoist motor and the overall operating power, executes a second power supply control operation through the high-voltage power distribution unit.

[0037] As an optional implementation, in a second aspect of the invention, the high-voltage power distribution unit controls the on-board charger and / or the power battery in the battery management system to perform a first power supply control operation on the motor controller based on the overall operating power, including:

[0038] The high-voltage power distribution unit determines the power source corresponding to the motor controller based on the overall operating power. The power source includes the on-board charger, or the power source includes the on-board charger and the power battery in the battery management system.

[0039] When the power source includes the on-board charger, the high-voltage power distribution unit provides the first electrical energy received from the on-board charger to the motor controller and the power battery;

[0040] When the power source includes the on-board charger and the power battery, the high-voltage power distribution unit provides the motor controller with the first electrical energy corresponding to the on-board charger and the second electrical energy received from the power battery.

[0041] As an optional implementation, in a second aspect of the invention, the high-voltage power distribution unit determines the power source corresponding to the motor controller based on the overall operating power, including:

[0042] When the overall operating power is the first preset power, the high-voltage power distribution unit determines the on-board charger as the power source corresponding to the motor controller;

[0043] When the overall operating power is the second preset power, the high-voltage power distribution unit determines the on-board charger and the power battery as the power source corresponding to the motor controller, and the second preset power is greater than the first preset power.

[0044] As an optional implementation, in a second aspect of the invention, the motor controller performs a second power supply control operation through the high-voltage power distribution unit based on the current state of the hoist motor and the overall operating power, including:

[0045] When the current state of the hoisting motor is the preset hoisting lifting state, the motor controller controls the high-voltage power distribution unit to perform the operation of providing the first electrical energy corresponding to the on-board charger and the second electrical energy output by the power battery to the motor controller.

[0046] When the current state of the hoist motor is the preset hoisting lowering state, the motor controller determines whether the overall operating power is the first preset power;

[0047] When it is determined that the overall operating power of the machine is the first preset power, the motor controller controls the hoist motor to perform a third power supply control operation.

[0048] As an optional implementation, in a second aspect of the invention, the motor controller controls the hoist motor to perform a third power supply control operation, including:

[0049] The motor controller controls the hoist motor to enter the power generation state and receives the initial energy output by the hoist motor in the power generation state;

[0050] The motor controller converts the initial energy from gravitational potential energy into electrical energy to obtain the target energy, and then provides the target energy to the high-voltage power distribution unit.

[0051] As an optional implementation, in a second aspect of the invention, the method further includes:

[0052] The high-voltage power distribution unit receives the target energy output by the motor controller and detects the first charging demand state of the power battery and the second charging demand state of the pump motor.

[0053] The high-voltage power distribution unit selects the target energy source from the power battery and the pump motor based on the first charging demand state and the second charging demand state.

[0054] The high-voltage power distribution unit provides the target energy output by the motor controller to the power supply object.

[0055] As an optional implementation, in a second aspect of the invention, the method further includes:

[0056] The high-voltage power distribution unit receives the first DC voltage output by the on-board charger and directs the first DC voltage to the DC conversion module, triggering the DC conversion module to convert the first DC voltage into a second DC voltage. The first DC voltage is obtained by the on-board charger from the received AC voltage.

[0057] The high-voltage power distribution unit receives the second DC voltage output by the DC conversion module and determines the second DC voltage as the basis for the high-voltage power distribution unit to perform the first power supply control operation.

[0058] A third aspect of the present invention discloses another power supply control system for diaphragm wall construction equipment, the system comprising:

[0059] Memory containing executable program code;

[0060] A processor coupled to the memory;

[0061] The processor calls the executable program code stored in the memory to execute the power supply control method for the continuous wall construction equipment disclosed in the second aspect of the present invention.

[0062] The fourth aspect of the present invention discloses a computer storage medium storing computer instructions, which, when invoked, are used to execute the power supply control method for the continuous wall construction equipment disclosed in the second aspect of the present invention.

[0063] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0064] In this embodiment of the invention, the high-voltage power distribution unit is used to determine the total operating power required for the current operation of the continuous wall construction equipment; the high-voltage power distribution unit is also used to control the on-board charger and / or the power battery in the battery management system to perform a first power supply control operation on the motor controller according to the total operating power; the motor controller is used to control the pump motor to provide power to the hydraulic system of the continuous wall construction equipment and control the hoisting motor to provide power to the hoisting device of the continuous wall construction equipment under the power supply control of the high-voltage power distribution unit; the motor controller is also used to detect the current state of the hoisting motor and perform a second power supply control operation through the high-voltage power distribution unit according to the current state of the hoisting motor and the total operating power. It is evident that implementing this invention provides a highly efficient, automated power supply control system and method capable of simultaneously supplying power from multiple power sources, compared to existing power supply methods for continuous wall construction equipment. This not only reduces resource waste caused by exhaust gas emissions requiring purification and by energy consumption for heat dissipation, but also improves the power supply efficiency and accuracy for continuous wall construction equipment. Furthermore, the flexible selection of diverse power sources enhances the diversity and flexibility of power supply to the equipment, ensuring reliability and accuracy. This, in turn, improves the driving efficiency and accuracy of the continuous wall construction equipment, ultimately enhancing its operational efficiency. Attached Figure Description

[0065] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0066] Figure 1 This is a schematic diagram of the power supply control system of a continuous wall construction equipment disclosed in an embodiment of the present invention;

[0067] Figure 2 This is a schematic diagram of the system power supply direction during low-power operation of the whole machine, as disclosed in an embodiment of the present invention;

[0068] Figure 3 This is a schematic diagram of another system power supply direction during full-power operation of the entire machine, as disclosed in an embodiment of the present invention;

[0069] Figure 4 This is a schematic diagram of the power supply direction of a hoisting system during hoisting, as disclosed in an embodiment of the present invention;

[0070] Figure 5This is a schematic diagram of the working device of a continuous wall construction equipment disclosed in an embodiment of the present invention;

[0071] Figure 6 This is a schematic diagram of a winch lowering and the system power supply direction during the determination process disclosed in an embodiment of the present invention;

[0072] Figure 7 This is a schematic diagram of the power supply control device for a continuous wall construction equipment disclosed in an embodiment of the present invention;

[0073] Figure 8 This is a flowchart illustrating a power supply control method for a continuous wall construction equipment disclosed in an embodiment of the present invention;

[0074] Figure 9 This is a schematic diagram of the power supply control system of another continuous wall construction equipment disclosed in an embodiment of the present invention. Detailed Implementation

[0075] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0076] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or end that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or ends.

[0077] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0078] This invention discloses a power supply control system and method for continuous wall construction equipment. Compared with existing power supply methods for continuous wall construction equipment, it provides a highly efficient, automated power supply control system and method capable of simultaneously supplying power from multiple power sources. This not only reduces resource waste caused by exhaust gas emissions and heat dissipation, but also improves the power supply efficiency and accuracy of the continuous wall construction equipment. Furthermore, the flexible selection of diverse power sources enhances the diversity and flexibility of power supply to the continuous wall construction equipment, ensuring the reliability and accuracy of power supply. This, in turn, improves the driving efficiency and accuracy of the continuous wall construction equipment, thereby enhancing its working efficiency. Detailed descriptions follow.

[0079] Example 1

[0080] Please see Figure 1 , Figure 1 This is a schematic diagram of the power supply control system for a continuous wall construction equipment disclosed in an embodiment of the present invention. Figure 1 The described power supply control system for continuous wall construction equipment can be applied to the working scenarios of continuous wall construction equipment (such as continuous wall grab buckets). Optionally, the system can be integrated into the continuous wall construction equipment, or it can exist independently of the continuous wall construction equipment. It can also be a local server or cloud server used to process the power supply process of the continuous wall construction equipment, etc., and the embodiments of the present invention are not limited thereto. Figure 1 As shown, the power supply control system of the diaphragm wall construction equipment may include:

[0081] The high-voltage power distribution unit 101 is used to determine the total operating power required for the current operation of the continuous wall construction equipment.

[0082] The high-voltage power distribution unit 101 is also used to control the on-board charger and / or the power battery in the battery management system to perform the first power supply control operation on the motor controller 102 according to the overall operating power of the machine.

[0083] The motor controller 102 is used to control the pump motor to provide power to the hydraulic system of the continuous wall construction equipment under the power supply control of the high voltage power distribution unit 101, and to control the hoist motor to provide power to the hoisting device of the continuous wall construction equipment.

[0084] The motor controller 102 is also used to detect the current status of the hoist motor and, based on the current status of the hoist motor and the overall operating power, execute a second power supply control operation through the high-voltage power distribution unit 101.

[0085] In this embodiment of the invention, an on-board charger and a power battery are used as dual power sources. Under the power supply of the dual power sources, the pump motor is controlled to provide power to the hydraulic system of the whole machine, replacing the engine in the prior art. The winch motor is controlled to provide power to the winch device, replacing the hydraulic motor in the prior art. This can achieve precise power supply to the continuous wall grab bucket while reducing the waste of resources caused by exhaust gas emission and the energy consumption for heat dissipation due to the conversion of energy into heat energy.

[0086] Specifically, the overall operating power can be either a first preset power or a second preset power, with the second preset power being greater than the first preset power. The first preset power represents the power when the machine is operating at low power, and the second preset power represents the power when the machine is operating at full power. The current state of the hoist motor can include a preset hoisting rising state or a preset hoisting lowering state. The hoisting lowering state can include the state during hoisting and / or braking.

[0087] Optionally, the number of on-board chargers can be 5, 4, or any other pre-defined value. Optionally, the first power supply control operation can include the operation of the on-board charger supplying power to the motor controller 102, or the operation of the on-board charger and the power battery jointly supplying power to the motor controller 102. Optionally, the second power supply control operation can include the operation of controlling the on-board charger and the power battery to jointly supply power to the motor controller 102 through the high-voltage power distribution unit 101, or the operation of controlling the hoist motor to recharge the power battery and supply power to the pump motor through the high-voltage power distribution unit 101. This embodiment of the invention is not limited to this.

[0088] It is evident that implementation Figure 1The described power supply control system for the continuous wall construction equipment utilizes an on-board charger and a power battery within the battery management system as dual power sources. These dual power sources drive a hoist motor to power the hoisting device and a pump motor to power the entire hydraulic system, enabling rapid and accurate control of the continuous wall construction equipment. Compared to existing power supply methods for continuous wall construction equipment (i.e., using an engine as the power source, where the engine burns fuel to generate kinetic energy to drive a hydraulic pump, and the hydraulic system uses components such as hydraulic pumps, valve groups, hydraulic motors, and hydraulic cylinders to achieve various functions), this system provides a highly efficient, automated power supply control system and method capable of simultaneously supplying power from multiple power sources. This not only reduces resource waste caused by exhaust gas emissions and heat dissipation, but also improves the power supply efficiency and accuracy for the continuous wall construction equipment. Furthermore, the flexible selection of diverse power sources enhances the diversity and flexibility of power supply, ensuring the reliability and accuracy of power supply to the continuous wall construction equipment. This, in turn, improves the driving efficiency and accuracy of the continuous wall construction equipment, ultimately enhancing its operational efficiency.

[0089] In an optional embodiment, the high-voltage power distribution unit 101 may specifically include the following method for controlling the on-board charger and / or the power battery in the battery management system to perform the first power supply control operation on the motor controller 102 based on the overall operating power:

[0090] The power source corresponding to the motor controller 102 is determined based on the overall operating power of the machine.

[0091] When the power source includes an on-board charger, the first electrical energy received from the on-board charger is provided to the motor controller 102 and the power battery.

[0092] When the power source includes an on-board charger and a power battery, the first electrical energy corresponding to the on-board charger and the second electrical energy received from the power battery are provided to the motor controller 102.

[0093] In this embodiment of the invention, the power source includes an on-board charger, or the power source includes an on-board charger and a power battery in the battery management system.

[0094] In this embodiment of the invention, specifically, the first electrical energy corresponding to the on-board charger can be the electrical energy provided by the high-voltage direct current obtained by the conversion processing of the AC power output by the on-board charger through the DC conversion module in the power supply control system.

[0095] As can be seen, this optional embodiment can control the on-board charger and / or power battery to switch power sources based on the overall machine operating power through the high-voltage power distribution unit 101, so as to accurately determine the power source for the motor controller 102, and quickly and accurately control the power supply to the motor controller 102 based on the accurately determined power source. Compared with the existing method of using an engine to generate kinetic energy to drive a hydraulic pump by burning fuel, this reduces exhaust emissions and the conversion of kinetic energy into heat energy. This not only reduces resource waste, but also improves the power supply efficiency and accuracy of the continuous wall construction equipment, as well as the power supply flexibility and diversity of the continuous wall construction equipment, thereby improving the driving accuracy and driving efficiency of the subsequent continuous wall construction equipment.

[0096] In this optional embodiment, as an optional implementation method, the high-voltage power distribution unit 101 determines the power source corresponding to the motor controller 102 based on the overall operating power, specifically including:

[0097] When the overall operating power of the machine is the first preset power, the on-board charger is selected as the power source corresponding to the motor controller 102;

[0098] When the overall operating power is the second preset power, the on-board charger and the power battery are determined as the power source corresponding to the motor controller 102.

[0099] In this embodiment of the invention, optionally, the motor controller 102 may include a pump motor controller for controlling the pump motor, or it may include a winch motor controller for controlling the hoist motor. Optionally, the number of winch motors may be greater than one (e.g., two), and each winch motor corresponds to one winch motor controller. For example, assuming the power supply control system includes winch motor A and winch motor B, the winch motor controllers may include winch motor controller a corresponding to winch motor A and winch motor controller b corresponding to winch motor B.

[0100] For example, such as Figure 2 As shown, Figure 2 This is a schematic diagram of the system power supply direction during low-power operation of the entire machine, as disclosed in an embodiment of the present invention. Figure 2 As shown, under low-power operation of the entire unit, the high-voltage power distribution unit 101 (such as...) Figure 2 The PDU in the vehicle will connect the on-board charger (such as...) Figure 2 The converted electrical energy provided by the OBC (Operating Circuit Control Unit) is distributed to the motor controller 102 (e.g., ...). Figure 2 The pump motor controller, winch motor controller 1, and winch motor controller 2 are used to charge the power battery at the same time.

[0101] For example, such as Figure 3 As shown, Figure 3 This is a schematic diagram of another system power supply direction during full-power operation of the entire machine, as disclosed in an embodiment of the present invention. Figure 3 As shown, when the whole machine is running at full power, the high-voltage power distribution unit 101 supplies the converted electrical energy provided by the on-board charger and the electrical energy provided by the power battery to the motor controller 102.

[0102] As can be seen, this optional implementation can directly use the on-board charger as the power source for the motor controller 102 when the whole machine is operating at low power. When the whole machine is operating at full power, the on-board charger and the power battery are determined as the power source for the motor controller 102. This can improve the accuracy, flexibility and diversity of the power source for powering the motor controller 102. It is also beneficial to improve the accuracy and reliability of power supply to the motor controller 102 based on the on-board charger when the whole machine is operating at low power. Furthermore, it is beneficial to improve the power supply speed and efficiency of the motor controller 102 based on the dual power sources of the on-board charger and the power battery when the whole machine is operating at full power.

[0103] In another optional embodiment, the motor controller 102 performs a second power supply control operation through the high-voltage power distribution unit 101 based on the current state of the hoist motor and the overall operating power. Specifically, this operation may include:

[0104] When the current state of the hoisting motor is the preset hoisting lifting state, the high-voltage power distribution unit 101 controls the operation of supplying the first electrical energy corresponding to the on-board charger and the second electrical energy output by the power battery to the motor controller 102.

[0105] When the current state of the hoist motor is the preset hoisting lowering state, determine whether the overall operating power is the first preset power;

[0106] When it is determined that the overall operating power of the machine is the first preset power, the hoist motor is controlled to perform the third power supply control operation.

[0107] In this embodiment of the invention, optionally, the hoisting can occur when the whole machine is running at low power, when the whole machine is running at full power, or when it is running at other preset power. This embodiment of the invention does not limit the occurrence of the hoisting.

[0108] For example, such as Figure 4 As shown, Figure 4 This is a schematic diagram of the power supply direction of a hoisting system during hoisting, as disclosed in an embodiment of the present invention. Figure 4As shown, when the hoist is lifting, the high-voltage power distribution unit 101 controls the flow of electrical energy from the on-board charger and power battery to the motor controller 102, driving the hoist to rotate, thereby improving the working efficiency of the continuous wall construction equipment. Figure 5 As shown, Figure 5 This is a schematic diagram of the working device of a continuous wall construction equipment disclosed in an embodiment of the present invention, wherein the working device includes a hoisting device. Figure 5 The left-hand diagram shows the working device, while the right-hand diagram (the device indicated by the arrow) is a scaled-down view of the hoisting device included in the working device on the left.

[0109] As can be seen, this optional embodiment can control the high-voltage power distribution unit 101 to supply the first electrical energy corresponding to the on-board charger and the second electrical energy output from the power battery to the motor controller 102 when the hoist is being lifted. This can improve the driving control of the hoisting device by continuously supplying power to the motor controller 102 through the high-voltage power distribution unit 101, thereby improving the working efficiency of the working device. When the hoist is being lowered, it can determine whether the machine is currently in a low-power operation state. If so, it can control the hoisting motor to perform a third power supply control operation. This can improve the control accuracy and reliability of power generation through the hoisting motor when the hoist is being lowered and the machine is operating at low power, which is conducive to realizing the recycling of excess energy resources and thus reducing the waste of energy resources to a certain extent.

[0110] In this optional embodiment, as an optional implementation method, the motor controller 102 controls the hoist motor to perform the third power supply control operation in the following specific ways:

[0111] Control the winch motor to enter the power generation state and receive the initial energy output by the winch motor in the power generation state;

[0112] The initial energy is converted from gravitational potential energy to electrical energy to obtain the target energy, and the target energy is provided to the high-voltage power distribution unit 101.

[0113] In this embodiment of the invention, specifically, during the lowering and braking of the winch, the winch motor is in a state of reverse rotation with positive torque, entering a power generation state, and changing from a motor to a generator. At this time, the winch motor controller recovers the gravitational potential energy of the lowering winch and converts the gravitational potential energy into electrical energy, and provides the converted electrical energy to the high-voltage power distribution unit 101 for use.

[0114] As can be seen, this optional implementation can control the winch motor to enter the power generation state through the motor controller 102 during the lowering and braking of the winch, and receive the initial energy output by the winch motor in the power generation state. This can improve the accuracy and efficiency of the motor controller 102 in recovering the energy output by the winch motor, and convert the energy form of the initial energy from gravitational potential energy to electrical energy to obtain the target energy, and provide the target energy to the high-voltage power distribution unit 101. The conversion and output of the recovered energy by the motor controller 102 can improve the accurate and effective utilization of excess energy resources, thereby helping to reduce the waste of energy resources to a certain extent.

[0115] In this optional embodiment, the high-voltage power distribution unit 101 may also be used for:

[0116] Receive the target energy output from the motor controller 102, and detect the first charging demand state of the power battery and the second charging demand state of the pump motor.

[0117] Based on the first charging demand state and the second charging demand state, the target energy supply object is selected from the power battery and pump motor.

[0118] The target energy output by the motor controller 102 is provided to the object being powered.

[0119] In this embodiment of the invention, specifically, when the high-voltage power distribution unit 101 receives the target energy output by the hoist motor controller, it detects whether the power battery and pump motor have charging needs, and based on the detection results, flexibly selects the objects to be charged, and then distributes the target energy to the objects that need to be charged.

[0120] For example, when both the power battery and the pump motor have charging needs, the high-voltage power distribution unit 101 provides a portion of the target energy to the power battery and a portion of the target energy to the pump.

[0121] For example, such as Figure 6 As shown, Figure 6 This is a schematic diagram of a winch lowering and the system power supply direction during the specified timing, as disclosed in an embodiment of the present invention. Figure 6 As shown, when the winch is lowered and braked, the winch motor is in a state of reverse rotation with positive torque, entering the power generation state. At this time, the winch motor changes from a motor to a generator. The winch motor controller recovers the gravitational potential energy when the winch is lowered through the winch motor and converts the gravitational potential energy into electrical energy, which is then charged back to the power battery through the high-voltage power distribution unit 101. At the same time, some electrical energy is supplied to the pump motor.

[0122] As can be seen, this optional implementation can also receive the target energy output by the motor controller 102 through the high-voltage power distribution unit 101, and detect the charging demand status of the power battery and the pump motor. Then, based on the charging demand status, it can select the power supply object of the target energy from the power battery and the pump motor, which can improve the detection accuracy of the charging demand of the power battery and the pump motor, thereby improving the selection accuracy of the power supply object of the target energy. Then, the target energy output by the motor controller 102 is provided to the power supply object, which can improve the accuracy of the distribution of the target energy by the high-voltage power distribution unit 101, and improve the accuracy, flexibility and diversity of providing the target energy to the power battery and / or the pump motor.

[0123] In yet another optional embodiment, the high-voltage distribution unit 101 is further configured to:

[0124] The system receives the first DC voltage output from the on-board charger and directs the first DC voltage to the DC-DC conversion module, triggering the DC-DC conversion module to convert the first DC voltage into a second DC voltage. The first DC voltage is obtained by the on-board charger from converting the received AC voltage.

[0125] The system receives the second DC voltage output from the DC-DC conversion module and determines the second DC voltage as the basis for the high-voltage power distribution unit 101 to perform the first power supply control operation.

[0126] In this embodiment of the invention, specifically, 380V AC mains power is introduced from the power grid, distributed to the OBC via the AC distribution box, and the OBC converts the 380V AC power into 600V high-voltage DC power. This high-voltage DC power is input to the DC-DC converter module through the high-voltage distribution unit 101 for voltage regulation. Subsequently, the high-voltage distribution unit 101 is triggered to provide the regulated DC power to the motor controller 102 according to the overall power usage.

[0127] For example, such as Figure 7 As shown, Figure 7 This is a schematic diagram of the power supply control device for a continuous wall construction equipment disclosed in an embodiment of the present invention (the power supply control device can be understood as being related to...). Figure 1 The power supply control system (corresponding physical device) may include a PDU high-voltage distribution unit, a DC-DC converter module, a motor controller, a pump motor, and a hoist motor. The motor controller may include a pump motor controller and a hoist motor controller, with each hoist motor corresponding to one hoist motor controller. Figure 7The example shown uses two winch motors. The winch motor controllers include winch motor controller 1 and winch motor controller 2. Specifically, the first terminal of the PDU high-voltage power distribution unit is electrically connected to the first terminal of the OBC on-board charger; the second terminal of the PDU high-voltage power distribution unit is electrically connected to the power battery in the BMS battery management system; the third terminal of the PDU high-voltage power distribution unit is electrically connected to the DC-DC converter module; and the fourth terminal of the PDU high-voltage power distribution unit 101 is electrically connected to the first terminal of the pump motor controller, the first terminal of winch motor controller 1, and the first terminal of winch motor controller 2, respectively. The second terminals of winch motor controller 1 and winch motor controller 2 are each electrically connected to their respective winch motors. The second terminal of the pump motor controller is electrically connected to the first terminal of the pump motor; the third terminal of the pump motor controller is electrically connected to the AC voltage; the fourth terminal of the pump motor controller is electrically connected to the PTC thermistor; and the second terminal of the pump motor is electrically connected to the hydraulic pump system.

[0128] As can be seen, this optional embodiment can receive mains power from the grid through a current collector and distribute the mains power to the corresponding on-board charger via a junction box. This enables accurate power supply to the on-board charger, which serves as the power source for the power supply control system. The on-board charger converts the AC voltage received from the junction box into high-voltage DC power. Subsequently, the high-voltage distribution unit 101 uses a DC-DC conversion module to stabilize the high-voltage DC power before sending the stabilized DC voltage to the high-voltage distribution unit 101. This improves the accuracy and reliability of the power supply source for the high-voltage distribution unit 101, which supplies power to the motor controller 102.

[0129] Example 2

[0130] Please see Figure 8 , Figure 8 This is a flowchart illustrating a power supply control method for a continuous wall construction device disclosed in an embodiment of the present invention. Figure 8 The described power supply control method for diaphragm wall construction equipment can be applied to the working scenarios of diaphragm wall construction equipment (such as diaphragm wall grab buckets), such as... Figure 8 As shown, the power supply control method for this diaphragm wall construction equipment may include the following operations:

[0131] 201. The high-voltage power distribution unit determines the total operating power required for the current operation of the continuous wall construction equipment.

[0132] 202. The high-voltage power distribution unit controls the on-board charger and / or the power battery in the battery management system to perform the first power supply control operation on the motor controller according to the overall operating power of the machine.

[0133] 203. Under the power supply control of the high-voltage power distribution unit, the motor controller controls the pump motor to provide power to the hydraulic system of the continuous wall construction equipment, and controls the winch motor to provide power to the winch device of the continuous wall construction equipment.

[0134] 204. The motor controller detects the current status of the hoist motor and, based on the current status of the hoist motor and the overall operating power, executes the second power supply control operation through the high-voltage power distribution unit.

[0135] It is evident that implementation Figure 8 The described power supply control method for continuous wall construction equipment utilizes an on-board charger and a power battery in the battery management system as dual power sources. These dual power sources drive a hoist motor to power the hoisting device and a pump motor to power the entire hydraulic system, thus enabling rapid and accurate drive control of the continuous wall construction equipment. Compared to existing power supply methods for continuous wall construction equipment (i.e., using an engine as the power source, where the engine burns fuel to generate kinetic energy to drive a hydraulic pump, and the hydraulic system uses components such as hydraulic pumps, valve groups, hydraulic motors, and hydraulic cylinders to achieve various functions), this method provides a highly efficient, automated power supply control system and method capable of simultaneously supplying power from multiple power sources. This not only reduces resource waste caused by exhaust gas emissions and heat dissipation, but also improves the power supply efficiency and accuracy of the continuous wall construction equipment. Furthermore, the flexible selection of diverse power sources enhances the diversity and flexibility of power supply, ensuring the reliability and accuracy of power supply to the continuous wall construction equipment. This, in turn, improves the driving efficiency and accuracy of the continuous wall construction equipment, ultimately enhancing its working efficiency.

[0136] In an optional embodiment, the high-voltage power distribution unit in step 202 above, based on the overall operating power, controls the on-board charger and / or the power battery in the battery management system to perform a first power supply control operation on the motor controller, which may include:

[0137] The high-voltage power distribution unit determines the power source corresponding to the motor controller based on the overall operating power. The power source includes the on-board charger, or the power source includes the on-board charger and the power battery in the battery management system.

[0138] When the power source includes an on-board charger, the high-voltage power distribution unit will supply the first electrical energy received from the on-board charger to the motor controller and the power battery;

[0139] When the power source includes an on-board charger and a power battery, the high-voltage power distribution unit provides the first electrical energy corresponding to the on-board charger and the second electrical energy received from the power battery to the motor controller.

[0140] As can be seen, this optional embodiment can control the on-board charger and / or power battery to switch power sources based on the overall machine operating power through the high-voltage power distribution unit, thereby accurately determining the power source for the motor controller and quickly and precisely controlling the power supply to the motor controller based on the accurately determined power source. Compared with the existing method of using an engine to burn fuel to generate kinetic energy to drive a hydraulic pump, this reduces exhaust emissions and the conversion of kinetic energy into heat energy. This not only reduces resource waste but also improves the power supply efficiency and accuracy of the continuous wall construction equipment, as well as the flexibility and versatility of the power supply to the continuous wall construction equipment. This, in turn, helps to improve the driving accuracy and efficiency of the subsequent driving of the continuous wall construction equipment.

[0141] In this optional embodiment, as an optional implementation method, the high-voltage power distribution unit determines the power source corresponding to the motor controller based on the overall operating power, including:

[0142] When the overall operating power is the first preset power, the high-voltage power distribution unit determines the on-board charger as the power source corresponding to the motor controller;

[0143] When the overall operating power is the second preset power, the high-voltage power distribution unit determines the on-board charger and the power battery as the power source corresponding to the motor controller, and the second preset power is greater than the first preset power.

[0144] It is evident that this optional implementation method can directly use the on-board charger as the power source for the motor controller when the whole machine is operating at low power. When the whole machine is operating at full power, the on-board charger and the power battery are determined as the power source for the motor controller. This can improve the accuracy, flexibility, and diversity of the power source used to power the motor controller. It is also beneficial to improve the accuracy and reliability of power supply to the motor controller based on the on-board charger when the whole machine is operating at low power, and to improve the power supply speed and efficiency of the motor controller based on the dual power sources of the on-board charger and the power battery when the whole machine is operating at full power.

[0145] In another optional embodiment, the motor controller in step 204 above performs a second power supply control operation through the high-voltage power distribution unit based on the current state of the hoist motor and the overall operating power, which may include:

[0146] When the current state of the hoisting motor is the preset hoisting lifting state, the motor controller controls the high-voltage power distribution unit to perform the operation of providing the first electrical energy corresponding to the on-board charger and the second electrical energy output by the power battery to the motor controller.

[0147] When the current state of the hoist motor is the preset hoisting lowering state, the motor controller determines whether the overall operating power is the first preset power.

[0148] When the overall operating power of the machine is determined to be the first preset power, the motor controller controls the hoist motor to perform the third power supply control operation.

[0149] As can be seen, this optional embodiment can control the high-voltage power distribution unit to supply the first electrical energy corresponding to the on-board charger and the second electrical energy output from the power battery to the motor controller when the winch is being lifted. This can improve the driving control of the winch device by continuously supplying power to the motor controller through the high-voltage power distribution unit, thereby improving the working efficiency of the working device. When the winch is being lowered, it can determine whether the machine is currently in a low-power operation state. If so, it can control the winch motor to perform a third power supply control operation. This can improve the control accuracy and reliability of power generation through the winch motor when the winch is being lowered and the machine is operating at low power, which is conducive to realizing the recycling of excess energy resources and thus reducing the waste of energy resources to a certain extent.

[0150] In this optional embodiment, as an optional implementation, the motor controller controls the hoist motor to perform a third power supply control operation, including:

[0151] The motor controller controls the hoist motor to enter the power generation state and receives the initial energy output by the hoist motor in the power generation state;

[0152] The motor controller converts the initial energy from gravitational potential energy into electrical energy to obtain the target energy, and then provides the target energy to the high-voltage power distribution unit.

[0153] As can be seen, this optional implementation can control the winch motor to enter the power generation state through the motor controller during the lowering and braking of the winch, and receive the initial energy output by the winch motor in the power generation state. This can improve the accuracy and efficiency of the motor controller in recovering the energy output by the winch motor, and convert the energy form of the initial energy from gravitational potential energy to electrical energy to obtain the target energy, and provide the target energy to the high-voltage power distribution unit. The conversion and output of the recovered energy by the motor controller can improve the accurate and effective utilization of excess energy resources, thereby helping to reduce the waste of energy resources to a certain extent.

[0154] In this optional implementation, the method may further include:

[0155] The high-voltage power distribution unit receives the target energy output from the motor controller and detects the first charging demand state of the power battery and the second charging demand state of the pump motor.

[0156] The high-voltage power distribution unit selects the target energy source from the power battery and pump motor based on the first charging demand state and the second charging demand state.

[0157] The high-voltage power distribution unit provides the target energy output by the motor controller to the power supply object.

[0158] As can be seen, this optional implementation can also receive the target energy output by the motor controller through the high-voltage power distribution unit, and detect the charging demand status of the power battery and the pump motor. Then, based on the charging demand status, it can select the target energy supply object from the power battery and the pump motor, which can improve the accuracy of detecting the charging demand of the power battery and the pump motor, thereby improving the accuracy of selecting the target energy supply object. Then, the target energy output by the motor controller is provided to the supply object, which can improve the accuracy of the high-voltage power distribution unit in allocating the target energy, and improve the accuracy, flexibility and diversity of providing the target energy to the power battery and / or the pump motor.

[0159] In yet another optional embodiment, the method may further include:

[0160] The high-voltage power distribution unit receives the first DC voltage output by the on-board charger and sends the first DC voltage to the DC-DC conversion module, triggering the DC-DC conversion module to convert the first DC voltage into a second DC voltage. The first DC voltage is obtained by the on-board charger from converting the received AC voltage.

[0161] The high-voltage power distribution unit receives the second DC voltage output from the DC-DC conversion module and determines the second DC voltage as the basis for the high-voltage power distribution unit to perform the first power supply control operation.

[0162] As can be seen, this optional embodiment can receive mains power from the grid through a current collector and distribute the mains power to the corresponding on-board charger via a junction box. This enables accurate power supply to the on-board charger, which serves as the power source for the power supply control system. Furthermore, the on-board charger converts the AC voltage received from the junction box into high-voltage DC power. Subsequently, the high-voltage distribution unit uses a DC-DC conversion module to regulate the high-voltage DC power before sending the regulated DC voltage to the high-voltage distribution unit. This improves the accuracy and reliability of the power supply source for the high-voltage distribution unit used to power the motor controller.

[0163] Example 3

[0164] Please see Figure 9 , Figure 9 This is a schematic diagram of the power supply control system of another continuous wall construction equipment disclosed in an embodiment of the present invention. Figure 9 As shown, the power supply control system of the diaphragm wall construction equipment may include:

[0165] Memory 301 storing executable program code;

[0166] Processor 302 coupled to memory 301;

[0167] The processor 302 calls the executable program code stored in the memory 301 to execute the steps in the power supply control method for the continuous wall construction equipment described in Embodiment 1 or Embodiment 2 of the present invention.

[0168] Example 4

[0169] This invention discloses a computer storage medium storing computer instructions. When these computer instructions are invoked, they are used to execute the steps in the power supply control method for the continuous wall construction equipment described in Embodiment 1 or Embodiment 2 of this invention.

[0170] Example 5

[0171] This invention discloses a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform the steps in the power supply control method for the continuous wall construction equipment described in Embodiment 1 or Embodiment 2.

[0172] The system embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0173] Through the detailed description of the above embodiments, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, including read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0174] Finally, it should be noted that the power supply control system and method for continuous wall construction equipment disclosed in the embodiments of the present invention are merely preferred embodiments of the present invention and are only used to illustrate the technical solutions of the present invention, not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power supply control system for a continuous wall construction equipment, characterized in that, The system is applied in the working scenario of the continuous wall construction equipment, and the system includes: A high-voltage power distribution unit is used to determine the total operating power required for the current operation of the continuous wall construction equipment. The high-voltage power distribution unit is also used to control the on-board charger and / or the power battery in the battery management system to perform a first power supply control operation on the motor controller according to the overall operating power of the machine. The motor controller is used, under the power supply control of the high-voltage power distribution unit, to control the pump motor to provide power to the hydraulic system of the continuous wall construction equipment, and to control the winch motor to provide power to the winch device of the continuous wall construction equipment. The motor controller is also used to detect the current status of the hoist motor, and execute a second power supply control operation through the high-voltage power distribution unit based on the current status of the hoist motor and the overall operating power.

2. The power supply control system for the continuous wall construction equipment according to claim 1, characterized in that, The high-voltage power distribution unit controls the on-board charger and / or the power battery in the battery management system to perform the first power supply control operation on the motor controller according to the overall operating power of the machine. Specifically, this includes: Based on the overall operating power, the power source corresponding to the motor controller is determined. The power source includes the on-board charger, or the power source includes the on-board charger and the power battery in the battery management system. When the power source includes the on-board charger, the first electrical energy received from the on-board charger is provided to the motor controller and the power battery. When the power source includes the on-board charger and the power battery, the first electrical energy corresponding to the on-board charger and the second electrical energy received from the power battery are provided to the motor controller.

3. The power supply control system for the continuous wall construction equipment according to claim 2, characterized in that, The high-voltage power distribution unit determines the power source corresponding to the motor controller based on the overall operating power of the unit in the following specific ways: When the overall operating power of the machine is the first preset power, the on-board charger is determined as the power source corresponding to the motor controller; When the overall operating power is the second preset power, the on-board charger and the power battery are determined as the power source corresponding to the motor controller, and the second preset power is greater than the first preset power.

4. The power supply control system for the continuous wall construction equipment according to claim 3, characterized in that, The method by which the motor controller performs the second power supply control operation through the high-voltage power distribution unit based on the current state of the hoisting motor and the overall operating power of the machine specifically includes: When the current state of the hoisting motor is the preset hoisting lifting state, the high-voltage power distribution unit is controlled to perform the operation of providing the first electrical energy corresponding to the on-board charger and the second electrical energy output by the power battery to the motor controller. When the current state of the hoisting motor is the preset hoisting lowering state, determine whether the overall operating power is the first preset power; When it is determined that the overall operating power of the machine is the first preset power, the hoist motor is controlled to perform the third power supply control operation.

5. The power supply control system for the continuous wall construction equipment according to claim 4, characterized in that, The specific methods by which the motor controller controls the hoist motor to perform the third power supply control operation include: Control the hoist motor to enter the power generation state, and receive the initial energy output by the hoist motor in the power generation state; The initial energy is converted from gravitational potential energy into electrical energy to obtain the target energy, and the target energy is provided to the high-voltage power distribution unit.

6. The power supply control system for the continuous wall construction equipment according to claim 5, characterized in that, The high-voltage power distribution unit is also used for: Receive the target energy output by the motor controller, and detect the first charging demand state of the power battery and the second charging demand state of the pump motor; Based on the first charging demand state and the second charging demand state, the power supply object of the target energy is selected from the power battery and the pump motor; The target energy output by the motor controller is provided to the power supply object.

7. The power supply control system for the continuous wall construction equipment according to any one of claims 1-6, characterized in that, The high-voltage power distribution unit is also used for: The system receives a first DC voltage output from the on-board charger and directs the first DC voltage to a DC-DC conversion module, triggering the DC-DC conversion module to convert the first DC voltage into a second DC voltage. The first DC voltage is obtained by the on-board charger from converting the received AC voltage. The system receives the second DC voltage output from the DC-DC conversion module and determines the second DC voltage as the basis for the high-voltage power distribution unit to perform the first power supply control operation.

8. A power supply control method for diaphragm wall construction equipment, characterized in that, The method is applied to the working scenario of the continuous wall construction equipment, and the method includes: The high-voltage power distribution unit determines the total operating power required for the current operation of the continuous wall construction equipment; The high-voltage power distribution unit controls the on-board charger and / or the power battery in the battery management system to perform a first power supply control operation on the motor controller according to the overall operating power of the machine. Under the power supply control of the high-voltage power distribution unit, the motor controller controls the pump motor to provide power to the hydraulic system of the continuous wall construction equipment, and controls the winch motor to provide power to the winch device of the continuous wall construction equipment. The motor controller detects the current status of the hoist motor and, based on the current status of the hoist motor and the overall operating power, executes a second power supply control operation through the high-voltage power distribution unit.

9. A power supply control system for a continuous wall construction equipment, characterized in that, The system includes: Memory containing executable program code; A processor coupled to the memory; The processor calls the executable program code stored in the memory to execute the power supply control method for the continuous wall construction equipment as described in claim 8.

10. A computer storage medium, characterized in that, The computer storage medium stores computer instructions, which, when invoked, are used to execute the power supply control method for the continuous wall construction equipment as described in claim 8.

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