Electric excavator, high-voltage power-on and power-off control method and system thereof and storage medium

Abstract

The invention provides an electric excavator, a high-voltage power-on and power-off control method and system thereof and a storage medium. The high-voltage power-on and power-off control method for the electric excavator comprises the steps that a main control object in the high-voltage power-on and power-off control process of the electric excavator is obtained; respectively defining each main control object as an object module, and configuring a unified standardized interface for each object module; all object modules needed in the high-voltage power-on and power-off control process of the electric excavator are called, and the corresponding high-voltage power-on and power-off control process of the electric excavator is achieved; and after the high-voltage power-on and power-off control process of the electric excavator is achieved, the current state of each object module is updated. According to the high-voltage power-on and power-off control method for the electric excavator, the use quality of the electric excavator can be improved by optimizing the high-voltage control process of the electric excavator.

Description

Technical Field

[0001] This invention relates to the field of excavator technology, and particularly to a high-voltage power-on / off control method for an electric excavator. The invention also relates to a high-voltage power-on / off control system for an electric excavator based on the aforementioned high-voltage power-on / off control method, a computer-readable storage medium capable of implementing the aforementioned high-voltage power-on / off control method, and an excavator using the aforementioned high-voltage power-on / off control method. Background Technology

[0002] In the field of new energy excavators, the power-on and power-off control logic of the high-voltage system is a crucial technical aspect. Specifically, as an emerging technological field, the power-on and power-off control logic of the high-voltage system in new energy excavators has not yet reached full technological maturity. In practical applications, this deficiency may lead to a series of unforeseen problems and challenges, such as instability in the control logic and slow response speed, thereby affecting the overall performance of the equipment and the user experience.

[0003] Furthermore, the high-voltage power-on / off control logic involves the coordinated operation of multiple systems and components, including the Battery Management System (BMS), Vehicle Control Unit (VCU), relays, contactors, and more. This high level of system complexity not only increases the system's failure rate but also raises the difficulty and cost of maintenance. In the event of a failure, specialized technicians and tools may be required for repairs, leading to extended maintenance time and increased costs.

[0004] More seriously, the complexity of high-voltage systems can also pose safety hazards. Improper design or operation during power-on and power-off processes can lead to accidents such as electric shock and fire. For example, the failure of a contactor or relay can cause excessive current or voltage, resulting in serious safety incidents, reducing the safety of the electric excavator, and thus hindering its overall performance. Summary of the Invention

[0005] In view of this, the present invention aims to propose a high-voltage power control method for electric excavators to improve the performance of electric excavators.

[0006] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0007] A method for controlling the high-voltage power supply and de-energization of an electric excavator, the method comprising:

[0008] Identify the main control objects in the high-voltage power-on / off control process of an electric excavator;

[0009] Each of the main control objects is defined as an object module, and a unified standardized interface is configured for each object module;

[0010] Call the various object modules required in the high-voltage power-on / off control process of the electric excavator to realize the corresponding high-voltage power-on / off control process of the electric excavator;

[0011] After implementing the high-voltage power-on / off control process of the electric excavator, update the current state of each object module.

[0012] Furthermore, the high-voltage power-on / off control process includes the pre-charging process, the high-voltage power-on process, and the high-voltage power-off process of the electric excavator.

[0013] Furthermore, the main controlled objects include relays, high-voltage power supplies, battery management systems, and vehicle controllers in the high-voltage circuit of the electric excavator.

[0014] Furthermore, when defining each of the main control objects as object modules, the name, current state, position, and series-parallel relationship of each of the main control objects are defined as attributes of the corresponding object modules.

[0015] Furthermore, when defining the name and current state of the main control object as attributes of the corresponding object module, the name and current state of the main control object are initialized.

[0016] Furthermore, the definition of the main control object as an object module also includes:

[0017] Establish a control list, which includes each of the object modules and the attributes of each of the object modules;

[0018] The control list specifies the object modules that need to be called during different high-voltage power-on / off control processes.

[0019] Furthermore, the step of calling the various object modules required in the high-voltage power-on / off control process of the electric excavator to implement the corresponding high-voltage power-on / off control process of the electric excavator includes:

[0020] Detect the attributes of each of the object modules required in the high-voltage power-on / off control process;

[0021] According to the control list, adjust the current state of each object module to the preset state in the corresponding high voltage power-on / off control process;

[0022] After the high-voltage power-on / off control process is completed, the current state of each object module is updated to the control list.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] The high-voltage power-on / off control method for electric excavators described in this invention optimizes the steps of the high-voltage power-on / off control process. It abstracts the main objects involved in the high-voltage power-on / off control process into object modules, transforming each main object involved in the high-voltage power-on / off control process into intuitive object modules. A unified and standardized interface is configured for each object module, facilitating the calling of each object module. Furthermore, the status of each object module is detected and updated in real time during the high-voltage control process, thereby simplifying the high-voltage control process and control logic of the excavator.

[0025] In addition, by establishing a control list, each object module and its attributes are configured in the control list, and the control list corresponds to the object modules that need to be called in the high voltage power-on and power-off control process. This makes the high voltage power-on and power-off control more intuitive, facilitates the maintenance and management of the attributes of each object module, and is beneficial for design and implementation.

[0026] In addition, the properties of each object module are monitored in real time during the high-voltage power-on and power-off process, and the current status of each object module is updated to the control list after each high-voltage power-on and power-off process is executed. This is conducive to monitoring the status of each object module through the control list, and controlling the high-voltage power-on and power-off process of the electric excavator according to the preset status through the control list. The steps are simple and intuitive, which is conducive to design and implementation.

[0027] The present invention also proposes a computer-readable storage medium storing a program or instructions, which, when executed by a processor, can realize the high-voltage power-on / off control method for an electric excavator as described above.

[0028] This invention also proposes a high-voltage power control system for an electric excavator, comprising:

[0029] The acquisition module is used to acquire the main control objects during the high-voltage power-on and power-off control process of the electric excavator;

[0030] The processing module is used to define each of the main controlled objects as an object module and configure a unified standardized interface for each of the object modules.

[0031] The calling module is used to call the required object modules during the high-voltage power-on and power-off process of the electric excavator to realize the corresponding high-voltage power-on and power-off control process of the electric excavator.

[0032] An update module is used to update the current state of each object module after the high-voltage power-on / off control process of the electric excavator is implemented.

[0033] The present invention also proposes an electric excavator, wherein the electric excavator is equipped with the electric excavator high-voltage power control system described above.

[0034] The electric excavator, the electric excavator high-voltage power-on / off control system, and the computer-readable storage medium described in this invention have the same beneficial effects as the prior art and the electric excavator high-voltage power-on / off control method described above, so they will not be described in detail here. Attached Figure Description

[0035] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0036] Figure 1 This is a flowchart of the high-voltage power-on / off control method for an electric excavator according to an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram illustrating the configuration of the high-voltage power control system for an electric excavator according to an embodiment of the present invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] 100. Control system; 101. Acquisition module; 102. First processing module; 103. Calling module; 104. Update module. Detailed Implementation

[0040] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0041] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0042] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0043] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0044] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0046] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0047] Example 1

[0048] This embodiment relates to a high-voltage power-on / off control method for electric excavators, aiming to improve the performance of electric excavators by optimizing the control steps of the high-voltage power-on / off process.

[0049] Before describing the high-voltage power-on / off control method for the electric excavator in this embodiment, it is necessary to briefly introduce the concepts involved in the high-voltage power-on / off control of the electric excavator. The electric excavator is a new energy power machine that operates through a motor. The control unit of the electric loader is the VCU (Vehicle Control Unit), and the high-voltage power-on / off control of the electric loader is based on commands from the VCU. When implementing the high-voltage power-on / off process of the electric excavator, the interaction and cooperation of various modules are achieved through a unified standardized interface, rather than directly manipulating physical connections.

[0050] Therefore, based on the above introduction, combined with Figure 1 As shown, in terms of overall design, the high-voltage power control method for the electric excavator in this embodiment includes the following steps:

[0051] Step S1: Obtain the main control objects in the high-voltage power-on / off control process of the electric excavator.

[0052] In step S1, the high-voltage power-on / off control process includes the pre-charging process, the high-voltage power-on process, and the high-voltage power-off process of the electric excavator. The main controlled objects include the relays, high-voltage power supply, battery management system, and vehicle controller in the high-voltage circuit of the electric excavator.

[0053] Step S2: Define each major control object as an object module and configure a unified standardized interface for each object module.

[0054] In step S2, when defining each main control object as an object module, the name, current state, position, and series / parallel relationship of each main control object are defined as attributes of the corresponding object module. When defining the name and current state of the main control object as attributes of the corresponding object module, the name and current state of the main control object are initialized. In this embodiment, defining the main control object as an object module further includes the following steps:

[0055] Step S21: Create a control list, which includes each object module and the attributes of each object module.

[0056] In step S21, a control list is established to configure each object module and its attributes. The control list corresponds to the object modules that need to be called during the high-voltage power-on / off control process, making the high-voltage power-on / off control more intuitive and easier to maintain and manage the attributes of each object module, which is beneficial for design and implementation.

[0057] Step S22: Set the object modules that need to be called during different high-voltage power-on and power-off control processes in the control list.

[0058] In step S22, when setting the object modules to be called in the high-voltage power-on / off control process, for example, the main control objects required in the existing high-voltage power-on / off control process of electric excavators can be set, and the calling relationship can be called according to the connection relationship of each main control object.

[0059] It is worth mentioning that the unified standardized port in this embodiment refers to the attributes and methods common to all object modules. The attributes include the name and state of each object module, the methods include initializing the name and state of each object module, and the states include turning on, turning off, and returning the current state of the object module.

[0060] Specifically, the standardized ports of each object module include input ports and output ports. Input ports may include, for example, status information acquisition ports, driver operation command interfaces, and higher-level status interaction interfaces. The status information acquisition port receives information from external input, while the driver operation command input comes from the driver's operation command input. Output ports may include, for example, object module action output execution ports and lower-level status interaction ports. The object module action output execution port outputs the action command to be executed by the object module, corresponding to the actual physical action command. Both the higher-level and lower-level status interaction ports exchange data based on the actual series-parallel hierarchical relationship of each major controlled object.

[0061] In addition, it should be noted in detail that the object module in this embodiment includes a fault judgment unit, a fault response judgment unit, a logical action judgment unit, and an object state update unit.

[0062] The fault diagnosis unit receives information from the status information acquisition port to identify faults. The fault response diagnosis unit receives information from the fault diagnosis unit and outputs corresponding action commands. The logical action diagnosis unit makes safe and compliant action commands based on the received action commands and the status of the superior object, and outputs them to the action output execution port of the object module. The fault response diagnosis unit can also directly receive commands from the fault diagnosis unit, and the logical action diagnosis module can also directly receive driver operation commands.

[0063] Step S3: Call the required modules for the high-voltage power-on / off control process of the electric excavator to realize the corresponding high-voltage power-on / off control process of the electric excavator.

[0064] In step S3, when calling each object module, a unified standardized interface is used. In this embodiment, step S3 further includes the following steps:

[0065] Step S31: Detect the properties of each object module required in the high voltage power-on / off control process.

[0066] In step S31, for example, the properties of each object module can be detected in real time during the high voltage power-on and power-off process to ensure that the conditions for the execution of critical operations are met.

[0067] Step S32: According to the control list, adjust the current state of each object module to the preset state in the corresponding high voltage power-on / off control process.

[0068] In step S32, when adjusting the current state of each object module to the preset state in the corresponding high-voltage power-on / off control process, it is necessary to follow the preset state. If there is an object module that is not in the preset state, the object module should be adjusted to the preset state first before the high-voltage power-on / off control is performed to ensure safe operation.

[0069] Step S33: After the high voltage power-on / off control process is completed, update the current status of each object module to the control list.

[0070] In steps S31, S32, and S33, the attributes of each object module are monitored in real time during the high-voltage power-on and power-off process, and the current status of each object module is updated to the control list after each high-voltage power-on and power-off process is executed. This facilitates monitoring the status of each object module through the control list and controlling the high-voltage power-on and power-off process of the electric excavator according to the preset status through the control list. The steps are simple and intuitive, which is conducive to design and implementation.

[0071] Step S4: After implementing the high-voltage power-on / off control process of the electric excavator, update the current state of each object module.

[0072] In step S4, when implementing the high-voltage power-on / off control process of the excavator, the current status of each object module can be continuously checked and updated to ensure that the conditions are met when performing critical operations and to prevent operations from being performed in an unsafe state.

[0073] Furthermore, when defining each major controlled object as an object module, some custom exception modules can also be defined to throw errors when they occur. These exception modules can contain specific error information related to the high-voltage system. Specifically, this specific error information could be, for example, that the control command exceeds the preset range, the control logic judgment cycle is too long, the controlled object behaves abnormally, or there is a conflict in the action logic of multiple objects.

[0074] The high-voltage power-on / off control method for electric excavators in this embodiment optimizes the control steps during the high-voltage power-on / off process. It abstracts each major control object into an object module, establishes a control list to intuitively represent the attributes of the object modules, and configures a unified standardized interface for each object module. During high-voltage power-on / off control, the corresponding module is called through the control list, which is intuitive and logically clear. Furthermore, the status of each object module is detected and updated in real time during the high-voltage control process. This simplifies the high-voltage control process and logic of the excavator, improves the safety of electric excavator use, and enhances its overall performance.

[0075] Example 2

[0076] This embodiment relates to a high-voltage power-on / off control system for an electric excavator (hereinafter referred to as control system 100). This control system 100 is based on the high-voltage power-on / off control method for electric excavators in Embodiment 1, and combines... Figure 2 As shown, in terms of overall structure, the control system 100 includes an acquisition module 101, a processing module 102, a calling module 103, and an update module 104.

[0077] The system comprises the following modules: **Acquisition Module:** Acquires the main control objects during the high-voltage power-on / off control process of the electric excavator. **Processing Module:** Defines each main control object as an object module and configures a standardized interface for each object module. **Invocation Module:** Invokes the required object modules during the high-voltage power-on / off control process of the electric excavator to implement the corresponding high-voltage power-on / off control procedures. **Update Module:** Updates the current state of each object module after the high-voltage power-on / off control process of the electric excavator has been implemented.

[0078] As set above, the control system 100 in this embodiment can obtain the main control objects based on the electric excavator high-voltage power-on / off control method in Embodiment 1, define each main control object as an object module, configure a unified standardized interface for each object module, call the corresponding object module during the high-voltage power-on / off process, and update the current state of each module after the corresponding high-voltage power-on / off control process is implemented.

[0079] It should be noted that the aforementioned acquisition module 101, processing module 102, calling module 103, and update module 104 can all be implemented using existing circuit modules with data storage, processing, and input / output capabilities. In addition to the modules mentioned above, the control system 100 typically also includes other modules such as data storage and data communication modules to temporarily store data information and other related processing information about the main controlled objects, object modules, and the current status of each module, as well as to enable communication and connection with other related modules.

[0080] The control system 100 of this embodiment, when used in specific applications, can be referred to the relevant description in Embodiment 1.

[0081] Furthermore, the control system 100 of this embodiment, by implementing the above-described control method, can optimize the control steps of the high-voltage power-on and power-off process of the electric excavator. By optimizing the method steps of the high-voltage power-on and power-off control of the electric excavator, the main objects involved in the high-voltage power-on and power-off control process of the electric excavator are abstracted into object modules, so that each main object involved in the high-voltage power-on and power-off control process is transformed into an intuitive object module, and a unified and standardized interface is configured for each object module, which facilitates the calling of each object module. In addition, the status of each object module is detected and updated in real time during the high-voltage control process, which helps to simplify the high-voltage control process and control logic of the excavator.

[0082] Example 3

[0083] This embodiment relates to an electric excavator, which uses the high-voltage power control method for electric excavators described in Embodiment 1.

[0084] In this embodiment, the high-voltage power-on / off control process of the electric excavator is controlled according to the high-voltage power-on / off control method for electric excavators in Embodiment 1. By applying the high-voltage power-on / off control method for electric excavators in Embodiment 1, the electric excavator in this embodiment can improve its operational safety and thus enhance its performance.

[0085] Example 4

[0086] This embodiment relates to a computer-readable storage medium storing a computer program, which, when executed by a processor, can implement the high-voltage power-on / off control method for an electric excavator in Embodiment 1.

[0087] In this embodiment, the computer-readable storage medium is generally exemplified by a memory. This computer-readable storage medium includes permanent and non-permanent, removable and non-removable media, and information storage can be achieved by any method or technology.

[0088] Furthermore, the aforementioned information may be computer-readable instructions, data structures, program modules, or other data. Examples of computer-readable 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 tape, disk storage, or other magnetic storage devices, or any other non-transfer medium that can be used to store information that can be accessed by a computing device.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for controlling the high-voltage power supply and de-energization of an electric excavator, characterized in that, The control method includes: Identify the main control objects in the high-voltage power-on / off control process of an electric excavator; Each of the main control objects is defined as an object module, and a unified standardized interface is configured for each object module; Call the various object modules required in the high-voltage power-on / off control process of the electric excavator to realize the corresponding high-voltage power-on / off control process of the electric excavator; After implementing the high-voltage power-on / off control process of the electric excavator, update the current state of each object module.

2. The high-voltage power control method for electric excavators according to claim 1, characterized in that: The high-voltage power-on / off control process includes the pre-charging process, the high-voltage power-on process, and the high-voltage power-off process of the electric excavator.

3. The high-voltage power control method for electric excavators according to claim 2, characterized in that: The main controlled objects include the relays, high-voltage power supply, battery management system, and vehicle controller in the high-voltage circuit of the electric excavator.

4. The high-voltage power control method for electric excavators according to claim 1, characterized in that: When defining each of the main control objects as object modules, the name, current state, position, and series-parallel relationship of each main control object are defined as attributes of the corresponding object module.

5. The high-voltage power control method for electric excavators according to claim 4, characterized in that: When defining the name and current state of the main control object as attributes of the corresponding object module, the name and current state of the main control object are initialized.

6. The high-voltage power control method for an electric excavator according to claim 4, characterized in that, The definition of the main controlled object as an object module also includes: Establish a control list, which includes each of the object modules and the attributes of each of the object modules; The control list specifies the object modules that need to be called during different high-voltage power-on / off control processes.

7. The high-voltage power control method for an electric excavator according to claim 6, characterized in that, The process of calling the various object modules required in the high-voltage power-on / off control process of the electric excavator to realize the corresponding high-voltage power-on / off control process of the electric excavator includes: Detect the attributes of each of the object modules required in the high-voltage power-on / off control process; According to the control list, adjust the current state of each object module to the preset state in the corresponding high voltage power-on / off control process; After the high-voltage power-on / off control process is completed, the current state of each object module is updated to the control list.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a program or instructions that, when executed by a processor, enable the implementation of the electric excavator high-voltage power-on / off control method according to any one of claims 1-7.

9. A high-voltage power control system for an electric excavator, characterized in that, include: The acquisition module is used to acquire the main control objects during the high-voltage power-on and power-off control process of the electric excavator; The processing module is used to define each of the main controlled objects as an object module and configure a unified standardized interface for each of the object modules. The calling module is used to call the required object modules during the high-voltage power-on and power-off process of the electric excavator to realize the corresponding high-voltage power-on and power-off control process of the electric excavator. An update module is used to update the current state of each object module after the high-voltage power-on / off control process of the electric excavator is implemented.

10. An electric excavator, characterized in that: The electric excavator is equipped with the high-voltage power control system for electric excavators as described in claim 9.

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