Control methods, control devices, and processors for electric air compressors

Abstract

This invention provides a control method, control device, and processor for an electric air compressor, belonging to the field of engineering machinery technology. The control method for the electric air compressor is applied to a new energy crane. The new energy crane includes an electric air compressor and an air storage device connected to the electric air compressor. The electric air compressor compresses gas, and the air storage device stores the compressed gas. The control method includes: determining the operating state of the new energy crane, wherein the operating state includes a traveling state and a stationary / lifting state; acquiring the air pressure value of the air storage device; and controlling the operating state of the electric air compressor according to the operating state, the air pressure value, and a preset air pressure threshold. The preset air pressure threshold includes a first preset lower limit threshold corresponding to the traveling state and a second preset lower limit threshold corresponding to the stationary / lifting state, wherein the second preset lower limit threshold is lower than the first preset lower limit threshold. This invention can extend the service life of the electric air compressor.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, and more specifically to a control method, control device and processor for an electric air compressor. Background Technology

[0002] Existing new energy cranes typically include an electric air compressor and an air storage device. The electric air compressor is controlled by a pressure sensor that detects the pressure in the air storage device. When the pressure is lower than the set start-up pressure, the electric air compressor starts; when it is higher than the set stop-up pressure, the electric air compressor stops. According to relevant regulations, the set start-up pressure of the electric air compressor for new energy cranes is usually relatively high during operation, which may cause frequent start-ups and stops, affecting the service life of the electric air compressor. Summary of the Invention

[0003] The purpose of this invention is to provide a control method, control device, processor, and new energy crane for electric air compressors, so as to solve the problem of affecting the service life of electric air compressors in the prior art.

[0004] To achieve the above objectives, a first aspect of the present invention provides a control method for an electric air compressor, applied to a new energy crane. The new energy crane includes an electric air compressor and an air storage device connected to the electric air compressor. The electric air compressor is used to compress gas, and the air storage device is used to store the gas compressed by the electric air compressor. The control method includes:

[0005] Determine the operating status of the new energy crane, which includes the crane's traveling status and its stationary lifting status;

[0006] Obtain the gas pressure value of the gas storage device;

[0007] The working state of the electric air compressor is controlled according to the operating status, air pressure value and preset air pressure threshold. The preset air pressure threshold includes a first preset lower limit threshold corresponding to the driving state and a second preset lower limit threshold corresponding to the parking and lifting state. The second preset lower limit threshold is less than the first preset lower limit threshold.

[0008] In this embodiment of the invention, the working state of the electric air compressor is controlled according to the working state, air pressure value and preset air pressure threshold, including: when the working state is the driving state, comparing the air pressure value with a first preset lower limit threshold; and when the air pressure value is less than the first preset lower limit threshold, controlling the electric air compressor to start.

[0009] In this embodiment of the invention, the working state of the electric air compressor is controlled according to the working state, air pressure value and preset air pressure threshold, including: when the working state is a parking and lifting state, comparing the air pressure value with a second preset lower limit threshold; when the air pressure value is less than the second preset lower limit threshold, controlling the electric air compressor to start.

[0010] In this embodiment of the invention, the preset air pressure threshold also includes a preset upper limit threshold; the control method further includes: comparing the air pressure value with the preset upper limit threshold; and controlling the electric air compressor to shut down when the air pressure value is greater than the preset upper limit threshold.

[0011] In this embodiment of the invention, the new energy crane includes a brake and a power take-off (PTO). The brake is used to send a braking signal, and the PTO is used to send a power take-off signal. Determining the operating state of the new energy crane includes: when the braking signal and the PTO signal are received, determining the operating state as a stopped and lifting state; when the braking signal and the PTO signal are not received, determining the operating state as a traveling state.

[0012] In this embodiment of the invention, the new energy crane includes a power take-off (PTO) for sending a power take-off signal; determining the operating state of the new energy crane includes: acquiring the speed of the new energy crane; when a power take-off signal is received and the speed is determined to be zero, determining the operating state as a parking and lifting state; when no power take-off signal is received and the speed is determined to be greater than zero, determining the operating state as a traveling state.

[0013] In this embodiment of the invention, the first preset lower threshold value ranges from 0.8MPa to 0.9MPa, and the second preset lower threshold value ranges from 0.5MPa to 0.6MPa.

[0014] In this embodiment of the invention, the preset upper limit threshold ranges from 1 MPa to 1.2 MPa.

[0015] A second aspect of the present invention provides a processor configured to execute the control method for an electric air compressor as described above.

[0016] A third aspect of the present invention provides a control device for an electric air compressor, comprising: an air pressure detection device; and the processor described above.

[0017] A fourth aspect of the present invention provides a new energy crane, comprising: an electric air compressor for compressing gas; an air storage device connected to the electric air compressor for storing the gas compressed by the electric air compressor; and a control device for the electric air compressor as described above.

[0018] The above technical solution determines the operating status of the new energy crane (traveling status and stationary lifting status) and then obtains the air pressure value of the air storage device. Based on the operating status, air pressure value, and preset air pressure thresholds, the working status of the electric air compressor is controlled. The preset air pressure thresholds include a first preset lower limit threshold for the traveling status and a second preset lower limit threshold for the stationary lifting status, with the second preset lower limit threshold being lower than the first preset lower limit threshold. Since the new energy crane operates mostly in the stationary lifting status, the above technical solution sets different preset air pressure thresholds (including the first and second preset lower limits) for different operating statuses of the new energy crane. Furthermore, the second preset lower limit threshold for the stationary lifting status is set to be lower than the first preset lower limit threshold for the traveling status. This reduces the frequent start-stop phenomenon caused by excessively high set starting pressures in existing technologies, thus extending the service life of the electric air compressor.

[0019] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 The schematic diagram illustrates a flow chart of a control method for an electric air compressor according to an embodiment of the present invention;

[0022] Figure 2 This schematic diagram illustrates the control components of a control method for an electric air compressor according to an embodiment of the present invention.

[0023] Figure 3 The schematic diagram illustrates a flow chart of a vehicle control method according to an embodiment of the present invention;

[0024] Figure 4 The schematic diagram illustrates a flowchart of a parking and lifting control method according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures

[0026] 1. Air pressure signal 2. Handbrake signal

[0027] 3 Power take-off signal 4 Vehicle speed signal

[0028] 5. Vehicle controller 6. Electric air compressor Detailed Implementation

[0029] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0032] Figure 1 The diagram illustrates a flow chart of a control method for an electric air compressor according to an embodiment of the present invention. Figure 1 As shown, in this embodiment of the invention, a control method for an electric air compressor is provided, applied to a new energy crane. The new energy crane includes an electric air compressor and an air storage device connected to the electric air compressor. The electric air compressor is used to compress gas, and the air storage device is used to store the gas compressed by the electric air compressor. Taking the application of this control method to a processor as an example, the control method may include the following steps:

[0033] Step S102: Determine the operating status of the new energy crane, which includes the crane traveling status and the parking and lifting status.

[0034] Step S104: Obtain the gas pressure value of the gas storage device.

[0035] Step S106: Control the working state of the electric air compressor according to the working status, air pressure value and preset air pressure threshold. The preset air pressure threshold includes a first preset lower limit threshold corresponding to the driving state and a second preset lower limit threshold corresponding to the parking and lifting state. The second preset lower limit threshold is less than the first preset lower limit threshold.

[0036] It can be understood that the operating state of the new energy crane refers to its specific working state, which can include a traveling state and a stationary lifting state. The traveling state means the new energy crane is in motion, and the stationary lifting state means the new energy crane is in a non-traveling state and is in a lifting state. The air storage device is a device used to store the gas compressed by the electric air compressor, and can include an air tank or air cylinder. The air pressure value of the air storage device can be detected by air pressure sensors or other air pressure detection equipment. The preset air pressure threshold is a pre-set pressure threshold for the compressed gas in the air storage device. Understandably, different operating states correspond to different preset air pressure thresholds. The first preset lower limit threshold is a pre-set minimum pressure threshold for the air storage device corresponding to the new energy crane being in the traveling state when the electric air compressor is turned on. That is, when the new energy crane is in the traveling state, if the air pressure value of the air storage device is less than this first preset lower limit threshold, the electric air compressor is turned on. The second preset lower threshold is a pre-set minimum pressure threshold for activating the air storage device corresponding to the electric air compressor when the new energy crane is in a parking and lifting state. That is, when the new energy crane is in a parking and lifting state, if the air pressure in the air storage device is less than this second preset lower threshold, the electric air compressor will be activated. The second preset lower threshold is less than the first preset lower threshold, meaning the pressure threshold for activating the electric air compressor in the parking and lifting state is less than the pressure threshold for activating the electric air compressor in the traveling state. The operating state of the electric air compressor can specifically include an on state and a off state.

[0037] Specifically, the processor can determine the operating status of the new energy crane (including traveling status and stationary lifting status), which can be determined through corresponding vehicle speed signals and / or power take-off signals, or obtained through user input of the operating status. Furthermore, the processor can acquire the air pressure value of the air storage device, which can be detected through air pressure sensors or other air pressure detection equipment. Thus, the processor can control the operating status of the electric air compressor based on the operating status of the new energy crane, the air pressure value of the air storage device, and preset air pressure thresholds. The preset air pressure thresholds include a first preset lower limit threshold corresponding to the traveling status and a second preset lower limit threshold corresponding to the stationary lifting status. The second preset lower limit threshold is lower than the first preset lower limit threshold. For example, the processor can input the operating status and air pressure value into a preset model, which can determine the operating status (on or off) of the electric air compressor based on the input (operating status and air pressure value) and the preset air pressure thresholds, and then control the electric air compressor based on this operating status.

[0038] The aforementioned control method for electric air compressors determines the operating state of the new energy crane (traveling state and stationary lifting state), and then obtains the air pressure value of the air storage device. Based on the operating state, air pressure value, and preset air pressure thresholds, the operating state of the electric air compressor is controlled. The preset air pressure thresholds include a first preset lower limit threshold corresponding to the traveling state and a second preset lower limit threshold corresponding to the stationary lifting state, with the second preset lower limit threshold being lower than the first preset lower limit threshold. Since the new energy crane operates mostly in the stationary lifting state, the above technical solution sets different preset air pressure thresholds (including the first and second preset lower limits) for different operating states of the new energy crane. Furthermore, the second preset lower limit threshold corresponding to the stationary lifting state is set to be lower than the first preset lower limit threshold corresponding to the traveling state. This reduces the phenomenon of frequent start-stop of the electric air compressor caused by excessively high set starting pressure, thus extending the service life of the electric air compressor.

[0039] In one embodiment, controlling the working state of the electric air compressor based on the operating state, air pressure value, and preset air pressure threshold includes: when the operating state is a driving state, comparing the air pressure value with a first preset lower limit threshold; and controlling the electric air compressor to start when the air pressure value is less than the first preset lower limit threshold.

[0040] Specifically, when the operating state of the new energy crane is determined to be the traveling state, the air pressure value of the air storage device can be compared with the first preset lower limit threshold corresponding to the traveling state. If the air pressure value is less than the first preset lower limit threshold, the electric air compressor can be controlled to start to fill the air storage device (e.g., air storage tank) with compressed gas; otherwise, the electric air compressor is not controlled to start.

[0041] In one embodiment, controlling the working state of the electric air compressor based on the operating state, air pressure value, and preset air pressure threshold includes: when the operating state is a parking and lifting state, comparing the air pressure value with a second preset lower limit threshold; and controlling the electric air compressor to start when the air pressure value is less than the second preset lower limit threshold.

[0042] Specifically, when the operating state of the new energy crane is determined to be the parking and lifting state, the air pressure value of the air storage device can be compared with the second preset lower limit threshold corresponding to the parking and lifting state. If the air pressure value is less than the second preset lower limit threshold, the electric air compressor can be controlled to start to fill the air storage device (e.g., air storage tank) with compressed gas; otherwise, the electric air compressor is not controlled to start.

[0043] In one embodiment, the preset air pressure threshold further includes a preset upper limit threshold; the control method for the electric air compressor further includes: comparing the air pressure value with the preset upper limit threshold; and controlling the electric air compressor to shut down when the air pressure value is greater than the preset upper limit threshold.

[0044] It is understandable that the preset upper limit threshold is the maximum pressure threshold of the air storage device corresponding to the shutdown of the electric air compressor, and the preset upper limit threshold can be the same for different operating states.

[0045] Specifically, after the processor controls the electric air compressor to start, it can continue to acquire the air pressure value of the air storage device and compare the air pressure value of the air storage device with a preset upper limit threshold. If the air pressure value is greater than the preset upper limit threshold, it can control the electric air compressor to shut down, that is, control the electric air compressor to stop filling the air storage device (such as an air storage cylinder) with compressed gas; otherwise, it will not control the electric air compressor to shut down.

[0046] In one embodiment, the new energy crane includes a brake and a power take-off (PTO), the brake being used to send a braking signal and the PTO being used to send a power take-off signal; determining the operating state of the new energy crane includes: when both the braking signal and the PTO signal are received, determining the operating state as a stopped and lifting state; when neither the braking signal nor the PTO signal is received, determining the operating state as a traveling state.

[0047] It is understandable that the braking signal is the braking signal, and the force take-off signal is the signal indicating the lifting action.

[0048] Specifically, after receiving the braking signal from the brake and the power take-off signal from the power take-off unit, the processor can determine that the operating state of the new energy crane is the parking and lifting state. If it does not receive the braking signal from the brake and the power take-off signal from the power take-off unit, it can determine that the operating state of the new energy crane is the traveling state.

[0049] In one embodiment, the new energy crane includes a power take-off (PTO) for sending a power take-off signal; determining the operating state of the new energy crane includes: acquiring the speed of the new energy crane; when a power take-off signal is received and the speed is determined to be zero, determining the operating state as a parking and lifting state; when no power take-off signal is received and the speed is determined to be greater than zero, determining the operating state as a traveling state.

[0050] Specifically, the processor can obtain the speed of the new energy crane. When it receives the power take-off signal from the power take-off unit and determines that the speed is zero, the processor can determine that the operating state of the new energy crane is the parking and lifting state. If it does not receive the power take-off signal and determines that the speed is greater than zero, it can determine that the operating state of the new energy crane is the traveling state.

[0051] In one embodiment, the first preset lower threshold value ranges from 0.8 MPa to 0.9 MPa, and the second preset lower threshold value ranges from 0.5 MPa to 0.6 MPa.

[0052] In one embodiment, the preset upper limit threshold ranges from 1 MPa to 1.2 MPa.

[0053] A specific embodiment of the present invention provides a control method for an electric air compressor, which is applied to a new energy crane. Its control components can be as follows: Figure 2 As shown, it mainly includes air pressure signal 1, handbrake signal 2 (i.e., braking signal), power take-off signal 3, vehicle speed signal 4, vehicle controller 5, and electric air compressor 6.

[0054] Among them, air pressure signal 1 is used to detect the air pressure in the air storage tanks of the new energy crane and feed it back to the vehicle controller 5 as a signal for starting and stopping the electric air compressor 6. Handbrake signal 2 is used to detect whether the new energy crane is in a driving or stopped state and feeds it back to the vehicle controller 5. Power take-off signal 3 is used to detect whether the new energy crane is in a lifting operation state and feeds it back to the vehicle controller 5. Vehicle speed signal 4 is used to detect whether the new energy crane is in a driving state and feeds it back to the vehicle controller 5. The vehicle controller 5 is used to determine the various signals and control the start and stop of the electric air compressor 6. The electric air compressor 6 serves as the air source for the new energy crane, supplying air to the various air storage tanks of the new energy crane.

[0055] Specifically, the control mode of the electric air compressor 6 can be divided into trolley control and parking / lifting control. The operating state of the new energy crane is determined by the various signals mentioned above, and the start and stop control of the electric air compressor 6 is performed according to the corresponding operating conditions. The working process is as follows:

[0056] 1. Driving control

[0057] In this state, there is no handbrake or power take-off signal, and the vehicle speed signal is greater than 0. When the air pressure signal is less than the set value A (e.g., 0.8 MPa), the vehicle controller 5 controls the electric air compressor 6 to start, charging the air tanks of the new energy crane. When the air pressure in the air tanks rises to the system set value B (e.g., 1.0 MPa), the electric air compressor 6 is controlled to stop running. Figure 3 As shown.

[0058] 2. Parking crane load control

[0059] In this state, there are handbrake and power take-off signals, and the vehicle speed signal is equal to 0. When the air pressure signal is less than the set value C (e.g., 0.55MPa), the vehicle controller 5 controls the electric air compressor 6 to start, filling the air tanks of the new energy crane with air. When the air pressure in the air tanks rises to the system set pressure B (e.g., 1.0MPa), the electric air compressor 6 is controlled to stop running. Figure 4 As shown.

[0060] In this embodiment, by distinguishing between the traveling and parking / lifting conditions of the new energy crane, the start and stop control of the electric air compressor is performed, and different start pressures (the above-mentioned set values ​​A and C) are set for the traveling and parking / lifting conditions, which can reduce the number of start-stop cycles of the electric air compressor and extend its service life and maintenance cycle.

[0061] This invention provides a processor configured to execute the control method for an electric air compressor as described above.

[0062] This invention provides a control device for an electric air compressor, comprising: an air pressure detection device; and the processor described in the above embodiments.

[0063] It can be understood that the air pressure detection equipment is a detection device used to detect the air pressure value of the air storage device, and it communicates with the processor to realize the transmission of data such as air pressure value.

[0064] This invention provides a new energy crane, comprising: an electric air compressor for compressing gas; an air storage device connected to the electric air compressor for storing the gas compressed by the electric air compressor; and a control device for the electric air compressor as described in the above embodiments.

[0065] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0066] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0067] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0068] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0069] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0070] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0071] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0072] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0073] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A control method for an electric air compressor, characterized by, The application is applied to a new energy crane, the new energy crane comprises an electric air compressor, a gas storage device connected with the electric air compressor, and a power take-off device, the electric air compressor is used for compressing gas, the gas storage device is used for storing the compressed gas of the electric air compressor, and the power take-off device is used for sending a power take-off signal, and the control method comprises the following steps: determining the working state of the new energy crane, wherein the working state comprises a traveling state and a parking state with a load; obtaining the gas pressure value of the gas storage device; controlling the working state of the electric air compressor according to the working state, the gas pressure value, and a preset gas pressure threshold, wherein the preset gas pressure threshold comprises a first preset lower threshold corresponding to the traveling state and a second preset lower threshold corresponding to the parking state with a load, and the second preset lower threshold is smaller than the first preset lower threshold; wherein the step of controlling the working state of the electric air compressor according to the working state, the gas pressure value, and the preset gas pressure threshold comprises: comparing the gas pressure value with the first preset lower threshold when the working state is the traveling state; controlling the electric air compressor to start when the gas pressure value is smaller than the first preset lower threshold; comparing the gas pressure value with the second preset lower threshold when the working state is the parking state with a load; controlling the electric air compressor to start when the gas pressure value is smaller than the second preset lower threshold; the step of determining the working state of the new energy crane comprises: obtaining the vehicle speed of the new energy crane; determining that the working state is the parking state with a load when the power take-off signal is received and the vehicle speed is determined to be zero; determining that the working state is the traveling state when the power take-off signal is not received and the vehicle speed is determined to be greater than zero.

2. The control method according to claim 1, characterized by the preset gas pressure threshold further comprises a preset upper threshold; the control method further comprises: comparing the gas pressure value with the preset upper threshold; controlling the electric air compressor to stop when the gas pressure value is greater than the preset upper threshold.

3. The control method according to claim 1, characterized by, the new energy crane comprises a brake used for sending a brake signal; the step of determining the working state of the new energy crane comprises: determining that the working state is the parking state with a load when the brake signal and the power take-off signal are received; determining that the working state is the traveling state when the brake signal and the power take-off signal are not received.

4. The control method according to claim 1, characterized by, the value range of the first preset lower threshold comprises 0.8 MPa to 0.9 MPa, and the value range of the second preset lower threshold comprises 0.5 MPa to 0.6 MPa.

5. The control method according to claim 2, characterized by, the value range of the preset upper threshold comprises 1 MPa to 1.2 MPa.

6. A processor, comprising: a processor configured to execute the control method for the electric air compressor according to any one of claims 1 to 5.

7. A control device for an electric air compressor, characterized by comprises: a gas pressure detection device; and a processor according to claim 6. comprises:

8. A new energy crane, characterized in that, an electric air compressor used for compressing gas; a gas storage device connected with the electric air compressor and used for storing the compressed gas of the electric air compressor; ​ A power take-off for transmitting a power take-off signal; and The control device for the electric air compressor according to claim 7.

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