Electric balance control method, control device and crane

Abstract

An embodiment of the present invention provides a method, device, and crane for controlling electrical balance. The method includes: activating a temperature control device based on user operation and determining the operating status of the temperature control device; obtaining the actual power and target power of the temperature control device; obtaining the real-time current of the generator and calculating the actual power of the generator based on the real-time current and the rated voltage of the generator; calculating the corresponding rated power of the generator based on the operating status; calculating a power limit for the temperature control device based on the actual power and target power of the temperature control device and the actual power and rated power of the generator; and controlling the temperature control device to implement the power limit to achieve electrical balance in the crane. This process determines the operating status of the temperature control device, calculates the power limit of the temperature control device in the corresponding operating state, and implements the power limit, thereby achieving electrical balance in the crane, improving the cooling effect of the temperature control device, and saving cooling costs.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle air conditioning, and in particular to an electric balance control method, a control device and a crane. Background Art

[0002] At present, when a crane is performing lifting operations, its engine is in idling state for a long time. In the early stage of electric air conditioning operation, the power demand of the electric air conditioner and other electrical equipment of the crane will exceed the output power of the generator in the idling state, thereby destroying the electrical balance of the crane.

[0003] In existing technology, maintaining the crane's electrical balance is primarily achieved by increasing battery capacity. When the electric air conditioner is operating and the crane's generator output power exceeds the engine output power, the generator and battery combine to provide power to the crane's electrical equipment. The system detects the air conditioner's operating signal and increases the engine speed when the air conditioner is running, ensuring that the generator's output power meets the crane's output power requirements. By limiting the maximum output power, the air conditioner's maximum power requirement is reduced, ensuring that when the crane is idling, the generator's output power meets the power requirements of the air conditioner and the crane's electrical equipment. However, this method results in poor cooling performance and high cooling costs. Summary of the Invention

[0004] Based on this, the first aspect of the present invention provides a method for controlling electric balance, which effectively improves the cooling effect of a temperature control device and saves cooling costs. The method is applied to a crane, which includes a temperature control device, an engine, and a generator, including:

[0005] Starting the temperature adjustment device based on a user operation and determining an operating state of the temperature adjustment device, wherein the operating state includes a first operating state and a second operating state;

[0006] Obtaining actual power and target power of the temperature regulating device;

[0007] Obtain the real-time current of the generator and calculate the actual power of the generator based on the real-time current and the rated voltage of the generator;

[0008] Calculate the generator rated power corresponding to the generator based on the operating status;

[0009] Calculating a power limit of the temperature control device in an operating state based on the actual power of the temperature control device, the target power of the temperature control device, the actual power of the generator, and the rated power of the generator;

[0010] The thermostat is controlled to enforce power limits so that the crane reaches electrical balance.

[0011] In an embodiment of the present invention, when the operating state is the first operating state, calculating the generator rated power corresponding to the generator based on the operating state includes:

[0012] Get the engine speed of the engine;

[0013] calculating a generator speed of the generator based on the engine speed and a preset speed ratio;

[0014] Find the rated current of the generator corresponding to the generator speed in the preset table;

[0015] Calculate the generator rated power based on the rated current and the rated voltage of the generator.

[0016] In an embodiment of the present invention, calculating the power limit of the temperature control device in the operating state based on the actual power of the temperature control device, the target power of the temperature control device, the actual power of the generator, and the rated power of the generator includes:

[0017] determining whether the target power of the temperature regulating device is greater than the actual power of the temperature regulating device;

[0018] In a case where the target power of the temperature adjustment device is less than the actual power of the temperature adjustment device, the target power of the temperature adjustment device is used as the power limit;

[0019] When the target power of the temperature adjustment device is equal to the actual power of the temperature adjustment device, the actual power of the temperature adjustment device is used as the power limit;

[0020] When the target power of the temperature regulating device is greater than the actual power of the temperature regulating device, determining whether a first difference is greater than or equal to a second difference, wherein the first difference is a difference between the rated power of the generator and the actual power of the generator, and the second difference is a product of a difference between the target power of the temperature regulating device and the actual power of the temperature regulating device and a preset efficiency;

[0021] When the first difference is greater than or equal to the second difference, calculating the power limit based on the rated power of the generator, the actual power of the generator, the preset efficiency, and the actual power of the temperature regulating device;

[0022] When the first difference is smaller than the second difference, the actual power of the temperature control device is used as the power limit.

[0023] In an embodiment of the present invention, when the operating state is the second operating state, calculating the generator rated power corresponding to the generator based on the operating state includes:

[0024] The rated power of the generator is calculated based on the actual power of the temperature regulating device, the target power of the temperature regulating device, and the actual power of the generator.

[0025] In an embodiment of the present invention, calculating the power limit of the temperature control device in the operating state based on the actual power of the temperature control device, the target power of the temperature control device, the actual power of the generator, and the rated power of the generator includes:

[0026] Calculate the rated current of the generator based on the rated power of the generator;

[0027] Find the generator speed corresponding to the rated current in the preset table;

[0028] calculating an engine speed based on a generator speed and a preset speed ratio;

[0029] controlling the engine to execute the engine speed and updating the actual power of the temperature regulating device based on the engine speed;

[0030] The power limit is calculated based on the generator rated power, the generator actual power, the preset efficiency, and the actual power of the updated thermostat.

[0031] In an embodiment of the present invention, the following further comprises:

[0032] Calculate the actual generator power of the generator based on the various electrical equipment of the crane and the corresponding rated power;

[0033] When the operating state is the first operating state, the difference between the actual power of the generator and the rated power of the generator is used as the power limit;

[0034] The thermostat is controlled to enforce power limits so that the crane reaches electrical balance.

[0035] In an embodiment of the present invention, the following further comprises:

[0036] When the operating state is the second operating state, calculating the generator rated power of the generator according to the preset maximum power value of the temperature regulating device and the actual power of the generator;

[0037] Calculate the rated current of the generator based on the rated power of the generator;

[0038] Find the generator speed corresponding to the rated current in the preset table;

[0039] calculating an engine speed of the engine based on the generator speed;

[0040] Control the engine execution engine speed to make the crane achieve electrical balance.

[0041] A second aspect of the present invention provides an electric balance control device for use in a crane. The crane includes a temperature control device, an engine, and a generator, including:

[0042] an operating state determining module, configured to start the temperature adjustment device based on a user operation and determine an operating state of the temperature adjustment device, wherein the operating state includes a first operating state and a second operating state;

[0043] A data acquisition module is used to obtain the actual power and target power of the temperature adjustment device;

[0044] Generator actual power calculation module, used to obtain the real-time current of the generator and calculate the actual power of the generator based on the real-time current and the rated voltage of the generator;

[0045] A generator rated power calculation module, used to calculate the generator rated power corresponding to the generator based on the operating status;

[0046] a power limit calculation module, configured to calculate a power limit of the temperature regulating device in operation based on the actual power of the temperature regulating device, the target power of the temperature regulating device, the actual power of the generator, and the rated power of the generator;

[0047] The execution module is used for controlling the temperature regulating device to execute the power limit so that the crane reaches electrical balance.

[0048] A third aspect of the present invention provides a crane, comprising a processor and a memory, wherein the memory stores computer-executable instructions that can be executed by the processor, and the processor executes the computer-executable instructions to implement any of the above-mentioned electric balance control methods.

[0049] A fourth aspect of the present invention provides a machine-readable storage medium having instructions stored thereon, which, when executed by a processor, implement any one of the above-mentioned methods for controlling electrical balance.

[0050] Through the above technical solution, the temperature control device is activated based on user operation, and the operating state of the temperature control device is determined, where the operating state includes a first operating state and a second operating state; the actual power and target power of the temperature control device are obtained; the real-time current of the generator is obtained, and the actual power of the generator is calculated based on the real-time current and the rated voltage of the generator; the generator rated power corresponding to the generator is calculated based on the operating state; the power limit of the temperature control device in the operating state is calculated based on the actual power of the temperature control device, the target power of the temperature control device, the actual power of the generator, and the rated power of the generator; and the temperature control device is controlled to implement the power limit to achieve electrical balance of the crane. This process determines the operating state of the temperature control device and then determines the power limit in the corresponding operating state based on the actual power of the temperature control device, the target power of the temperature control device, the actual power of the generator, and the rated power of the generator. This allows the temperature control device to implement the power limit and achieve electrical balance of the crane, thereby improving the cooling effect of the temperature control device and saving cooling costs.

[0051] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following detailed description, they are used to explain the embodiments of the present invention, but do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0053] Figure 1 This is a flow chart of a method for controlling electrical balance provided by an embodiment of the present invention;

[0054] Figure 2 1 is a schematic structural diagram of an electric balance control device provided by an embodiment of the present invention;

[0055] Figure 3 It is a structural schematic diagram of a crane provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0056] The following describes the specific implementation of the embodiment of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the embodiment of the present invention and is not used to limit the embodiment of the present invention.

[0057] Based on this, the present invention provides a method for controlling an electric balance, which is applied to a crane. The crane includes a temperature regulating device, an engine, and a generator. Figure 1 A flow chart of a method for controlling an electric balance provided by an embodiment of the present invention is shown as follows: Figure 1 As shown, the method includes:

[0058] Step S101: starting a temperature adjustment device based on a user operation and determining an operating state of the temperature adjustment device, wherein the operating state includes a first operating state and a second operating state.

[0059] In actual use, the crane activates a temperature control device based on user operations and determines the operating state of the temperature control device based on the user operations. Specifically, the temperature control device includes an electric air conditioner, and the operating state of the temperature control device includes a first operating state and a second operating state. The first operating state is an energy-saving state of the electric air conditioner, and the second operating state is a comfortable state of the electric air conditioner.

[0060] Step S102: Acquire the actual power and target power of the temperature adjustment device.

[0061] In actual applications, the temperature control device starts executing the corresponding operating state based on user operations and outputs the actual power and target power of the temperature control device in real time. Specifically, the actual power of the temperature control device is the actual power of the temperature control device in the current operating state, and the target power is the power that the temperature control device expects to reach in the current operating state.

[0062] Step S103: obtaining the real-time current of the generator, and calculating the actual power of the generator according to the real-time current and the rated voltage of the generator.

[0063] In practical applications, the real-time current of the generator is obtained, which can be detected by a current sensor. The actual power of the generator is calculated based on the real-time current and the rated voltage of the generator.

[0064] Step S104: Calculate the generator rated power corresponding to the generator based on the operating status.

[0065] In actual applications, the generator rated power is calculated based on the determined operating state of the temperature control device. Specifically, when the operating state is the first operating state, the generator rated power is calculated based on the engine speed. When the operating state is the second operating state, the generator rated power is calculated based on the actual generator power, the target power of the temperature control device, and the actual power.

[0066] Step S105: Calculating the power limit of the temperature regulating device in the operating state based on the actual power of the temperature regulating device, the target power of the temperature regulating device, the actual power of the generator, and the rated power of the generator.

[0067] In actual applications, the power limit value under the corresponding operating state is calculated according to different operating states of the temperature control device and based on the actual power of the temperature control device, the target power of the temperature control device, the actual power of the generator and the rated power of the generator.

[0068] In actual application, when the operating state of the temperature control device is the first operating state, the target power demand of the temperature control device does not actively increase the engine speed. By adjusting the power limit of the temperature control device, the electric power of the temperature control device and other electrical equipment does not exceed the rated power of the generator at the current speed.

[0069] In practice, when the thermostat is in the second operating state, the engine speed is actively controlled based on the thermostat's target power. This speed control ensures that the generator's rated power meets the power requirements of the thermostat and other electrical equipment in the crane. To prevent engine speed fluctuations caused by the start and stop of other electrical equipment in the crane, the actual power generated is monitored in real time, ensuring the generator's rated power based on the thermostat's target power and actual power.

[0070] Step S106: Control the temperature regulating device to execute power limit so that the crane reaches electrical balance.

[0071] In practical applications, the temperature regulating device is controlled to execute power limit so that the crane reaches electrical balance under the corresponding operating state.

[0072] Through the above embodiment, a temperature control device is activated based on a user operation, and its operating state is determined, where the operating state includes a first operating state and a second operating state. The actual power and target power of the temperature control device are obtained. The real-time current of the generator is obtained and the actual power of the generator is calculated based on the real-time current and the rated voltage of the generator. The rated power of the generator corresponding to the generator is calculated based on the operating state. The power limit of the temperature control device in the operating state is calculated based on the actual power of the temperature control device, the target power of the temperature control device, the actual power of the generator, and the rated power of the generator. The temperature control device is controlled to implement the power limit to achieve electrical balance of the crane. This process determines the operating state of the temperature control device and then determines the power limit in the corresponding operating state based on the actual power of the temperature control device, the target power of the temperature control device, the actual power of the generator, and the rated power of the generator. This allows the temperature control device to implement the power limit, achieve electrical balance of the crane, improve the cooling effect of the temperature control device, and save cooling costs.

[0073] In one embodiment, when the operating state is the first operating state, step S104 includes:

[0074] Get the engine speed of the engine;

[0075] calculating a generator speed of the generator based on the engine speed and a preset speed ratio;

[0076] Find the rated current of the generator corresponding to the generator speed in the preset table;

[0077] Calculate the generator rated power based on the rated current and the rated voltage of the generator.

[0078] In practical applications, when the operating state of the temperature regulating device is the first operating state, the engine speed of the engine is acquired, and the generator speed of the generator is calculated according to the product of the engine speed and the preset speed ratio.

[0079] In practical applications, the preset table is a table that corresponds to the generator speed and the generator rated current. Based on the calculated generator speed, the corresponding generator rated current is found in the preset table, and the generator rated power is calculated by multiplying the generator rated current by the generator rated voltage.

[0080] According to the above embodiment, when the operating state of the temperature adjustment device is the first operating state, the rotation speed of the generator is calculated according to the rotation speed of the engine, and the rated power of the generator is calculated based on the rotation speed of the generator.

[0081] In one embodiment, step S105 includes:

[0082] determining whether the target power of the temperature regulating device is greater than the actual power of the temperature regulating device;

[0083] In a case where the target power of the temperature adjustment device is less than the actual power of the temperature adjustment device, the target power of the temperature adjustment device is used as the power limit;

[0084] When the target power of the temperature adjustment device is equal to the actual power of the temperature adjustment device, the actual power of the temperature adjustment device is used as the power limit;

[0085] When the target power of the temperature regulating device is greater than the actual power of the temperature regulating device, determining whether a first difference is greater than or equal to a second difference, wherein the first difference is a difference between the rated power of the generator and the actual power of the generator, and the second difference is a product of a difference between the target power of the temperature regulating device and the actual power of the temperature regulating device and a preset efficiency;

[0086] When the first difference is greater than or equal to the second difference, calculating the power limit based on the rated power of the generator, the actual power of the generator, the preset efficiency, and the actual power of the temperature regulating device;

[0087] When the first difference is smaller than the second difference, the actual power of the temperature control device is used as the power limit.

[0088] In actual application, when the temperature adjustment device is in the first operating state, it is determined whether the target power of the temperature adjustment device is greater than the actual power of the temperature adjustment device. If the target power is less than the actual power, the target power is used as the power limit of the temperature adjustment device.

[0089] In practical applications, when the target power is equal to the actual power, the actual power is used as the power limit of the temperature adjustment device.

[0090] In practical applications, when the target power is greater than the actual power, the difference between the generator's rated power and the generator's actual power is used as a first difference. The difference between the target power and the actual power of the temperature control device is calculated, and the product of this difference and a preset efficiency is used as a second difference. A determination is then made as to whether the first difference is greater than or equal to the second difference. If the first difference is greater than or equal to the second difference, the ratio of the first difference to the preset efficiency is calculated, and the sum of this ratio and the actual power of the temperature control device is used as the power limit of the temperature control device. If the first difference is less than the second difference, the actual power of the temperature control device is used as the power limit.

[0091] According to the above embodiment, when the operating state of the temperature adjustment device is the first operating state, the power limit of the temperature adjustment device is determined according to the relationship between the target power and the actual power of the temperature adjustment device.

[0092] In one embodiment, when the operating state is the second operating state, step S104 includes:

[0093] The rated power of the generator is calculated based on the actual power of the temperature regulating device, the target power of the temperature regulating device, and the actual power of the generator.

[0094] In actual application, when the operating state of the temperature control device is the second operating state, the difference between the target power and the actual power of the temperature control device is calculated, the product of the difference and the preset efficiency is calculated, and the sum of the product and the actual power of the generator is calculated, and the sum is used as the rated power of the generator.

[0095] In one embodiment, step S105 includes:

[0096] Calculate the rated current of the generator based on the rated power of the generator;

[0097] Find the generator speed corresponding to the rated current in the preset table;

[0098] calculating an engine speed based on a generator speed and a preset speed ratio;

[0099] controlling the engine to execute the engine speed and updating the actual power of the temperature regulating device based on the engine speed;

[0100] The power limit is calculated based on the generator rated power, the generator actual power, the preset efficiency, and the actual power of the updated thermostat.

[0101] In actual application, when the operating state of the temperature regulating device is the second operating state, the rated current of the generator is calculated according to the calculated rated power of the generator, and the generator speed is determined according to the rated current of the generator in a preset table.

[0102] In actual application, the ratio of the generator speed to the preset speed ratio is used as the engine speed. The engine is controlled to execute the engine speed, and the actual power of the temperature regulating device after the update is obtained according to the engine speed.

[0103] In practical applications, the difference between the rated power of the generator and the updated actual power of the generator is calculated, the ratio of the difference to the preset efficiency is calculated, and the sum of the ratio and the actual power of the temperature control device is calculated, and the sum is used as the power limit of the temperature control device.

[0104] According to the above embodiment, when the operating state of the temperature adjustment device is the second operating state, the speed that the engine can increase is determined by the rated power of the generator, thereby calculating the power limit of the temperature adjustment device.

[0105] In one embodiment, the method for controlling electrical balance further includes:

[0106] Calculate the actual generator power of the generator based on the various electrical equipment of the crane and the corresponding rated power;

[0107] When the operating state is the first operating state, the difference between the actual power of the generator and the rated power of the generator is used as the power limit;

[0108] The thermostat is controlled to enforce power limits so that the crane reaches electrical balance.

[0109] In practical applications, the actual power of the generator can also be calculated based on the rated power and operating status of each electrical equipment in the crane.

[0110] In practical applications, when the temperature control device is in the first operating state, the difference between the actual power of the generator and the rated power of the generator is used as the power limit of the temperature control device. The temperature control device is controlled to execute the power limit so that the crane reaches an electrical equilibrium state.

[0111] In one embodiment, the method further comprises:

[0112] When the operating state is the second operating state, calculating the generator rated power of the generator according to the preset maximum power value of the temperature regulating device and the actual power of the generator;

[0113] Calculate the rated current of the generator based on the rated power of the generator;

[0114] Find the generator speed corresponding to the rated current in the preset table;

[0115] calculating an engine speed of the engine based on the generator speed;

[0116] Control the engine execution engine speed to make the crane achieve electrical balance.

[0117] In actual application, when the operating state of the temperature regulating device is the second operating state, the rated power of the generator is calculated according to the preset maximum power value of the temperature regulating device and the actual power of the generator.

[0118] In practice, the generator rated current is calculated based on the generator rated power and rated voltage. The generator speed corresponding to the rated current is then searched in a preset table. The maximum engine speed that can be increased is calculated based on the generator speed and the generator speed ratio. The engine is then controlled to achieve this speed to achieve electrical balance in the crane.

[0119] Based on the above-mentioned electric balance control method, an embodiment of the present invention further provides an electric balance control device 200. Figure 2 This is a schematic diagram of the structure of an electric balance control device provided by an embodiment of the present invention. The device 200 includes:

[0120] An operating state determining module 201 is configured to start the temperature adjustment device based on a user operation and determine an operating state of the temperature adjustment device, wherein the operating state includes a first operating state and a second operating state;

[0121] The data acquisition module 202 is used to obtain the actual power and target power of the temperature adjustment device;

[0122] Generator actual power calculation module 203, used to obtain the real-time current of the generator and calculate the actual power of the generator based on the real-time current and the rated voltage of the generator;

[0123] A generator rated power calculation module 204 is configured to calculate the generator rated power corresponding to the generator based on the operating state;

[0124] A power limit calculation module 205 is configured to calculate a power limit of the temperature regulating device in operation based on the actual power of the temperature regulating device, the target power of the temperature regulating device, the actual power of the generator, and the rated power of the generator;

[0125] The execution module 206 is used to control the temperature regulating device to execute the power limit so that the crane reaches electrical balance.

[0126] The electric balance control device provided in the embodiment of the present invention can implement each process of the electric balance control method in the method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described here.

[0127] The embodiment of the present invention further provides a crane, see Figure 3As shown, the crane includes a processor 130 and a memory 131 . The memory 131 stores machine-executable instructions that can be executed by the processor 130 . The processor 130 executes the machine-executable instructions to implement the above-mentioned electric balancing control method.

[0128] Furthermore, Figure 3 The crane shown further includes a bus 132 and a communication interface 133 , and the processor 130 , the communication interface 133 and the memory 131 are connected via the bus 132 .

[0129] The memory 131 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk storage. The communication connection between the system network element and at least one other network element is achieved through at least one communication interface 133 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. may be used. The bus 132 may be an ISA bus, a PCI bus, or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 3 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0130] The processor 130 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by hardware integrated logic circuits in the processor 130 or by software instructions. The processor 130 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present invention can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in memory 131, and processor 130 reads information in memory 131 and, in conjunction with its hardware, completes the steps of the method of the aforementioned embodiment.

[0131] An embodiment of the present invention also provides a machine-readable storage medium, which stores machine-executable instructions. When the machine-executable instructions are called and executed by a processor, the machine-executable instructions prompt the processor to implement the above-mentioned electrical balance control method. The specific implementation can be found in the method embodiment and will not be repeated here.

[0132] An electric balance control method, control device, and crane provided in an embodiment of the present invention include a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the method in the previous method embodiment. For specific implementation, please refer to the method embodiment and will not be repeated here.

[0133] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described systems and devices can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0134] In addition, in the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0135] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a crane, or a network device, etc.) to execute all or part of the steps of the various embodiments of the method of the present invention. The aforementioned storage medium includes various media that can store program code, such as a USB flash drive, a mobile hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0136] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0137] Finally, it should be noted that the above embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above embodiments within the technical scope disclosed by the present invention, or replace some of the technical features therein with equivalents. Such modifications, changes or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A method for controlling electrical balance, characterized in that: Applied to a crane, the crane includes a temperature regulating device, an engine, and a generator, the method comprising: Starting the temperature adjustment device based on a user operation and determining an operating state of the temperature adjustment device, wherein the operating state includes a first operating state and a second operating state; Obtaining actual power and target power of the temperature regulating device; Obtaining the real-time current of the generator, and calculating the actual power of the generator according to the real-time current and the rated voltage of the generator; Calculating a generator rated power corresponding to the generator based on the operating state; calculating a power limit of the temperature regulating device in the operating state based on the actual power of the temperature regulating device, the target power of the temperature regulating device, the actual power of the generator, and the rated power of the generator; controlling the temperature regulating device to implement the power limit so that the crane reaches electrical balance; Wherein, when the operating state is the first operating state, calculating the generator rated power corresponding to the generator based on the operating state includes: obtaining an engine speed of the engine; calculating a generator speed of the generator according to the engine speed and a preset speed ratio; Searching a preset table for the rated current of the generator corresponding to the generator speed; calculating a generator rated power based on the rated current and the rated voltage of the generator; When the operating state is the second operating state, calculating the generator rated power corresponding to the generator based on the operating state includes: The generator rated power is calculated based on the actual power of the temperature adjustment device, the target power of the temperature adjustment device, and the generator actual power.

2. The method according to claim 1, characterized in that The calculating the power limit of the temperature regulating device in the operating state based on the actual power of the temperature regulating device, the target power of the temperature regulating device, the actual power of the generator, and the rated power of the generator includes: determining whether the target power of the temperature adjustment device is greater than the actual power of the temperature adjustment device; In a case where the target power of the temperature adjustment device is less than the actual power of the temperature adjustment device, using the target power of the temperature adjustment device as the power limit; In a case where the target power of the temperature adjustment device is equal to the actual power of the temperature adjustment device, using the actual power of the temperature adjustment device as the power limit; When the target power of the temperature regulating device is greater than the actual power of the temperature regulating device, determining whether a first difference is greater than or equal to a second difference, wherein the first difference is a difference between the rated power of the generator and the actual power of the generator, and the second difference is a product of a difference between the target power of the temperature regulating device and the actual power of the temperature regulating device and a preset efficiency; When the first difference is greater than or equal to the second difference, calculating the power limit based on the generator rated power, the generator actual power, the preset efficiency, and the actual power of the temperature regulating device; When the first difference is smaller than the second difference, the actual power of the temperature adjustment device is used as the power limit.

3. The method according to claim 1, characterized in that The calculating the power limit of the temperature regulating device in the operating state based on the actual power of the temperature regulating device, the target power of the temperature regulating device, the actual power of the generator, and the rated power of the generator includes: Calculating the rated current of the generator according to the rated power of the generator; Searching for the generator speed corresponding to the rated current in a preset table; calculating an engine speed based on the generator speed and the predetermined speed ratio; controlling the engine to execute the engine speed, and updating the actual power of the temperature regulating device based on the engine speed; The power limit is calculated based on the generator rated power, the generator actual power, a preset efficiency, and an updated actual power of the temperature regulating device.

4. The method according to claim 1, wherein Also includes: Calculating the actual generator power of the generator based on various electrical devices of the crane and corresponding rated powers; When the operating state is the first operating state, taking the difference between the actual power of the generator and the rated power of the generator as the power limit; The temperature regulating device is controlled to implement the power limit so that the crane reaches electrical balance.

5. The method according to claim 4, characterized in that Also includes: When the operating state is the second operating state, calculating the generator rated power of the generator according to the preset maximum power value of the temperature regulating device and the actual power of the generator; Calculating the rated current of the generator according to the rated power of the generator; Searching for the generator speed corresponding to the rated current in a preset table; calculating an engine speed of the engine based on the generator speed; The engine is controlled to execute the engine speed so that the crane reaches electrical balance.

6. An electric balance control device, characterized in that: Applied to a crane, the crane includes a temperature regulating device, an engine, and a generator, including: an operating state determining module, configured to start the temperature regulating device based on a user operation and determine an operating state of the temperature regulating device, wherein the operating state includes a first operating state and a second operating state; A data acquisition module, configured to acquire the actual power and target power of the temperature regulating device; A generator actual power calculation module is used to obtain the real-time current of the generator and calculate the actual power of the generator based on the real-time current and the rated voltage of the generator; A generator rated power calculation module, configured to calculate the generator rated power corresponding to the generator based on the operating state; a power limit calculation module, configured to calculate a power limit of the temperature regulating device in the operating state based on the actual power of the temperature regulating device, the target power of the temperature regulating device, the actual power of the generator, and the rated power of the generator; an execution module, configured to control the temperature regulating device to execute the power limit so as to enable the crane to achieve electrical balance; Wherein, when the operating state is the first operating state, calculating the generator rated power corresponding to the generator based on the operating state includes: obtaining an engine speed of the engine; calculating a generator speed of the generator according to the engine speed and a preset speed ratio; Searching a preset table for the rated current of the generator corresponding to the generator speed; calculating a generator rated power based on the rated current and the rated voltage of the generator; When the operating state is the second operating state, calculating the generator rated power corresponding to the generator based on the operating state includes: The generator rated power is calculated based on the actual power of the temperature adjustment device, the target power of the temperature adjustment device, and the generator actual power.

7. A crane, characterized in that: The crane includes a processor and a memory, wherein the memory stores computer-executable instructions that can be executed by the processor, and the processor executes the computer-executable instructions to implement the electric balancing control method according to any one of claims 1 to 5.

8. A machine-readable storage medium having instructions stored thereon, characterized in that: When the instructions are executed by a processor, the electric balance control method according to any one of claims 1 to 5 is implemented.

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