Excavator control method and system, electronic equipment and storage medium

Abstract

The invention discloses an excavator control method and system, electronic equipment and a storage medium, and belongs to the technical field of mechanical control technologies. The excavator comprises a main fuel container, a standby fuel container, a container switching device and an engine, and the excavator control method comprises the steps that after a power-on signal is received, the temperature of fuel in the main fuel container is obtained; if the temperature of the fuel in the main fuel container is higher than or equal to the first preset temperature, a container switching device is controlled to conduct a pipeline between the main fuel container and the engine, so that the engine works through the fuel in the main fuel container; and if the temperature of the fuel in the main fuel container is lower than the first preset temperature, the container switching device is controlled to conduct a pipeline between the standby fuel container and the engine, so that the engine works through the fuel in the standby fuel container. Interference of a low-temperature environment on starting of the excavator can be avoided, and the use cost of the excavator is reduced.

Description

Technical Field

[0001] The present application relates to the field of mechanical control technology, and in particular to an excavator control method, system, electronic device and storage medium. Background Art

[0002] When working in high-cold areas, excavators often encounter extreme low temperatures, which can make it difficult to start the engine. In low-temperature environments, ordinary diesel is easy to solidify, blocking the fuel system and affecting the normal start of the engine. In order to solve this problem, it is usually necessary to use low-temperature diesel. However, long-term use of low-temperature diesel will significantly increase operating costs, because the cost of low-temperature diesel is usually higher and the fuel consumption may be greater.

[0003] Therefore, how to avoid the interference of low temperature environment on the start-up of the excavator and reduce the use cost of the excavator is a technical problem that technical personnel in this field currently need to solve. Summary of the invention

[0004] The purpose of this application is to provide an excavator control method, system, electronic device and storage medium, which can avoid the interference of low temperature environment on the start-up of the excavator and reduce the use cost of the excavator.

[0005] In order to solve the above technical problems, the present application provides an excavator control method, the excavator includes a main fuel container, a backup fuel container, a container switching device and an engine, the container switching device is used to switch the container that provides fuel to the engine, the number of containers that provide fuel to the engine at the same time is 1, the freezing point of the fuel in the main fuel container is higher than the freezing point of the fuel in the backup fuel container, the excavator control method includes:

[0006] After receiving the power-on signal, obtaining the temperature of the fuel in the main fuel container;

[0007] If the temperature of the fuel in the main fuel container is higher than or equal to the first preset temperature, the container switching device is controlled to connect the pipeline between the main fuel container and the engine, so that the engine uses the fuel in the main fuel container to work;

[0008] If the temperature of the fuel in the main fuel container is lower than the first preset temperature, the container switching device is controlled to connect the pipeline between the backup fuel container and the engine, so that the engine can operate using the fuel in the backup fuel container.

[0009] Optionally, after controlling the container switching device to connect the pipeline between the standby fuel container and the engine, the method further includes:

[0010] Obtaining the temperature of the coolant inside the engine;

[0011] If the temperature of the coolant inside the engine is higher than a second preset temperature, the container switching device is controlled to connect the pipeline between the main fuel container and the engine, so that the engine uses the fuel in the main fuel container to work.

[0012] Optionally, during the process of the engine operating using the fuel in the main fuel container, the process further includes:

[0013] If an engine shutdown command is received, the container switching device is controlled to connect the pipeline between the spare fuel container and the engine, and the engine is controlled to stop working after a preset delay, so that the fuel in the engine is replaced by the fuel in the spare fuel container.

[0014] Optionally, before obtaining the temperature of the fuel in the main fuel container, the method further includes:

[0015] Determining whether the ambient temperature at the location of the excavator is lower than a third preset temperature;

[0016] If yes, proceed to the step of obtaining the temperature of the fuel in the main fuel container;

[0017] If not, the container switching device is controlled to connect the pipeline between the main fuel container and the engine, so that the engine can work with the fuel in the main fuel container.

[0018] Optionally, the container switching device includes an oil inlet switching solenoid valve and an oil return switching solenoid valve;

[0019] Accordingly, controlling the container switching device to conduct the pipeline between the main fuel container and the engine includes:

[0020] Control the oil inlet switching solenoid valve to connect the oil inlet pipeline between the main fuel container and the engine;

[0021] Control the oil return switching solenoid valve to conduct the oil return pipeline between the main fuel container and the engine;

[0022] Accordingly, controlling the container switching device to conduct the pipeline between the standby fuel container and the engine includes:

[0023] Control the oil inlet switching solenoid valve to connect the oil inlet pipeline between the backup fuel container and the engine;

[0024] The oil return switching solenoid valve is controlled to conduct the oil return pipeline between the backup fuel container and the engine.

[0025] Optionally, the excavator includes a plurality of spare fuel containers, and the freezing points of the fuel in any two spare fuel containers are different;

[0026] Accordingly, controlling the container switching device to conduct the pipeline between the main fuel container and the engine includes:

[0027] The ambient temperature of the location of the excavator is obtained, and a target spare fuel container is selected according to the ambient temperature; wherein the freezing point of the fuel in the target spare fuel container is lower than the ambient temperature.

[0028] Optionally, also include:

[0029] determining a current operating condition of the excavator;

[0030] Determining a container corresponding to the current operating condition according to a correspondence between the operating condition and the fuel type;

[0031] The container switching device is controlled to conduct the pipeline between the container corresponding to the current working condition and the engine, so that the engine uses the fuel in the container corresponding to the current working condition to work.

[0032] The present application also provides an excavator control system, the excavator comprising a main fuel container, a backup fuel container, a container switching device and an engine, the container switching device is used to switch the container that provides fuel to the engine, the number of containers that provide fuel to the engine at the same time is 1, the freezing point of the fuel in the main fuel container is higher than the freezing point of the fuel in the backup fuel container, the excavator control system comprises:

[0033] A temperature detection module, used for obtaining the temperature of the fuel in the main fuel container after receiving a power-on signal;

[0034] a first control module, configured to control the container switching device to connect the pipeline between the main fuel container and the engine if the temperature of the fuel in the main fuel container is higher than or equal to the first preset temperature, so that the engine uses the fuel in the main fuel container to work;

[0035] The second control module is used to control the container switching device to connect the pipeline between the backup fuel container and the engine if the temperature of the fuel in the main fuel container is lower than the first preset temperature, so that the engine can work with the fuel in the backup fuel container.

[0036] The present application also provides a storage medium on which a computer program is stored, and when the computer program is executed, the steps of the above-mentioned excavator control method are implemented.

[0037] The present application also provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above-mentioned excavator control method when calling the computer program in the memory.

[0038] The excavator used in the present application includes a main fuel container, a backup fuel container, a container switching device and an engine, and the freezing point of the fuel in the main fuel container is higher than the freezing point of the fuel in the backup fuel container. After receiving the power-on signal, the temperature of the fuel in the main fuel container is detected; if the temperature of the fuel in the main fuel container is higher than or equal to the first preset temperature, the present application will switch to the main fuel container, so that the engine uses the fuel in the main fuel container; if the temperature of the fuel in the main fuel container is lower than the first preset temperature, the system will switch to the backup fuel container, so that the engine uses the fuel in the backup fuel container. The present application switches the container that provides fuel to the engine according to the temperature of the fuel in the main fuel container, which can avoid the interference of the low temperature environment on the start-up of the excavator and reduce the use cost of the excavator. The present application also provides an excavator control system, a storage medium and an electronic device, which have the above-mentioned beneficial effects and are not repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 A flow chart of an excavator control method provided in an embodiment of the present application;

[0041] Figure 2 A schematic structural diagram of a cold start device for an excavator provided in an embodiment of the present application;

[0042] Figure 3 A schematic diagram of a control flow of a cold start device for an excavator provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] See below Figure 1 , Figure 1 A flowchart of an excavator control method provided in an embodiment of the present application.

[0045] Specific steps may include:

[0046] S101: after receiving a power-on signal, obtaining the temperature of the fuel in the main fuel container;

[0047] The excavator includes a main fuel container, a backup fuel container, a container switching device and an engine, and the container switching device is used to switch the container that provides fuel to the engine.

[0048] The main fuel container and the backup fuel container are connected to the container switching device through pipelines, respectively, and the container switching device is further connected to the engine through pipelines. The container switching device selectively conducts the pipeline between the main fuel container or the backup fuel container and the engine according to the control signal, ensuring that the number of containers providing fuel to the engine at the same time is 1, so that the engine can use the fuel in the main fuel container or the backup fuel container as needed.

[0049] The above fuel can be diesel, gasoline, kerosene, etc. The freezing point of the fuel in the main fuel container is higher than the freezing point of the fuel in the backup fuel container. The combination of fuels in the main fuel container and the backup fuel container can include at least the following:

[0050] (1) Main fuel container: No. 0 diesel (freezing point about 0°C); backup fuel container: No. -20 diesel (freezing point about -20°C);

[0051] (2) Main fuel container: No. 0 diesel (freezing point about 0°C); backup fuel container: No. -35 diesel (freezing point about -35°C);

[0052] (3) Main fuel container: ordinary gasoline (freezing point about -40°C); backup fuel container: aviation kerosene (freezing point about -47°C).

[0053] In this embodiment, a temperature sensor may be provided in the main fuel container. After receiving a power-on signal, the temperature of the fuel in the main fuel container may be acquired by using the temperature sensor.

[0054] This embodiment does not limit the number of main fuel containers and spare fuel containers; as a feasible implementation, there may be one main fuel container and at least one spare fuel container in the excavator. The main fuel container and spare fuel container are containers for storing fuel, such as oil tanks, fuel barrels, etc.

[0055] As for Figure 1In the further introduction of the corresponding embodiment, before obtaining the temperature of the fuel in the main fuel container, it is also possible to determine whether the ambient temperature of the location of the excavator is lower than the third preset temperature; if so, the step of obtaining the temperature of the fuel in the main fuel container is entered; if not, the container switching device is controlled to conduct the pipeline between the main fuel container and the engine, so that the engine uses the fuel in the main fuel container to work. The temperature of the coolant inside the engine is higher than the third preset temperature.

[0056] S102: If the temperature of the fuel in the main fuel container is higher than or equal to the first preset temperature, controlling the container switching device to connect the pipeline between the main fuel container and the engine, so that the engine uses the fuel in the main fuel container to work;

[0057] If the temperature of the fuel in the main fuel container is higher than or equal to the first preset temperature, the container switching device is controlled to conduct the pipeline between the main fuel container and the engine, so that the engine uses the fuel in the main fuel container to work. This can ensure that under suitable temperature conditions, the engine uses the main fuel with lower cost and has better economy. The above-mentioned first preset temperature is higher than the freezing point of the fuel in the main fuel container.

[0058] S103: If the temperature of the fuel in the main fuel container is lower than the first preset temperature, the container switching device is controlled to connect the pipeline between the backup fuel container and the engine, so that the engine can operate using the fuel in the backup fuel container.

[0059] If the temperature of the fuel in the main fuel container is lower than the first preset temperature, the container switching device is controlled to connect the pipeline between the backup fuel container and the engine, so that the engine uses the fuel in the backup fuel container to work. In this way, it can be ensured that under low temperature conditions, the engine uses the backup fuel with a lower freezing point, avoiding starting difficulties and pipeline blockage caused by fuel solidification.

[0060] The excavator used in this embodiment includes a main fuel container, a backup fuel container, a container switching device and an engine, and the freezing point of the fuel in the main fuel container is higher than the freezing point of the fuel in the backup fuel container. After receiving the power-on signal, the temperature of the fuel in the main fuel container is detected; if the temperature of the fuel in the main fuel container is higher than or equal to the first preset temperature, this embodiment will switch to the main fuel container, so that the engine uses the fuel in the main fuel container; if the temperature of the fuel in the main fuel container is lower than the first preset temperature, the system will switch to the backup fuel container, so that the engine uses the fuel in the backup fuel container. This embodiment switches the container that provides fuel to the engine according to the temperature of the fuel in the main fuel container, which can avoid the interference of the low temperature environment on the start-up of the excavator and reduce the use cost of the excavator.

[0061] As for Figure 1 Further introduction to the corresponding embodiment, after the excavator is started, the temperature of the fuel in the main fuel container and the backup fuel container will rise, so after controlling the container switching device to connect the pipeline between the backup fuel container and the engine, the following operations can also be performed: obtaining the temperature of the coolant inside the engine; if the temperature of the coolant inside the engine is higher than the second preset temperature, controlling the container switching device to connect the pipeline between the main fuel container and the engine, so that the engine uses the fuel in the main fuel container to work. The second preset temperature is usually set higher than the freezing point of the fuel in the main fuel container to ensure that the main fuel is in a liquid state when entering the engine, thereby ensuring the normal operation of the engine.

[0062] As for Figure 1 According to a further description of the corresponding embodiment, in the process of the engine using the fuel in the main fuel container to work, it also includes:

[0063] If an engine shutdown command is received, the container switching device is controlled to connect the pipeline between the spare fuel container and the engine, and the engine is controlled to stop working after a preset delay, so that the fuel in the engine is replaced by the fuel in the spare fuel container.

[0064] After receiving the engine shutdown command, the above process first controls the container switching device to connect the pipeline between the spare fuel container and the engine, so that the engine uses the fuel in the spare fuel container for a period of time before shutdown. After a preset delay, the control system controls the engine to stop working to ensure that the fuel in the engine is replaced by the fuel in the spare fuel container, avoiding problems caused by the solidification of the main fuel at low temperatures.

[0065] As for Figure 1 As further described in the corresponding embodiment, the container switching device includes an oil inlet switching solenoid valve and an oil return switching solenoid valve.

[0066] Accordingly, the process of controlling the container switching device to conduct the pipeline between the main fuel container and the engine in this embodiment includes: controlling the oil inlet switching solenoid valve to conduct the oil inlet pipeline between the main fuel container and the engine; controlling the oil return switching solenoid valve to conduct the oil return pipeline between the main fuel container and the engine;

[0067] Correspondingly, the process of controlling the container switching device to connect the pipeline between the standby fuel container and the engine in this embodiment includes: controlling the oil inlet switching solenoid valve to connect the oil inlet pipeline between the standby fuel container and the engine; controlling the oil return switching solenoid valve to connect the oil return pipeline between the standby fuel container and the engine.

[0068] As a feasible implementation, the excavator includes a plurality of spare fuel containers, and the freezing points of the fuel in any two spare fuel containers are different;

[0069] Correspondingly, the process of controlling the container switching device to connect the pipeline between the main fuel container and the engine includes: obtaining the ambient temperature of the location of the excavator, and selecting a target backup fuel container according to the ambient temperature; wherein the freezing point of the fuel in the target backup fuel container is lower than the ambient temperature.

[0070] As for Figure 1 Further introduction to the corresponding embodiment, different working conditions have their most suitable fuels. During the operation of the excavator, the current working condition of the excavator can also be determined; the container corresponding to the current working condition can be determined according to the corresponding relationship between the working condition and the fuel type; the container switching device can be controlled to conduct the pipeline between the container corresponding to the current working condition and the engine, so that the engine can work with the fuel in the container corresponding to the current working condition. The above method can optimize engine performance, reduce operating costs, and meet environmental protection and safety requirements.

[0071] The process described in the above embodiment is explained below through an embodiment in actual application.

[0072] When the excavator is working in a high-cold area, when the ambient temperature is too low, it will cause difficulty in starting the engine, and low-temperature diesel must be used. However, using low-temperature diesel during operation will result in excessively high costs. This solution uses dual fuel tanks to store diesel of different grades, and switches the oil circuit when the engine is started and working according to the ambient temperature, which not only solves the problem of engine starting difficulty, but also reduces the cost of use.

[0073] See also Figure 2 , Figure 2 A schematic structural diagram of a cold start device for an excavator provided in an embodiment of the present application, showing a normal temperature grade diesel tank, a low temperature grade diesel tank, an oil inlet switching solenoid valve, an oil return switching solenoid valve, an engine, a controller, and a fuel temperature sensor TF. A1, A2, and A3 represent interfaces of the oil inlet switching solenoid valve, and B1, B2, and B3 represent interfaces of the oil return switching solenoid valve.

[0074] This embodiment adopts a dual fuel tank structure. The diesel in the low temperature diesel tank enters the engine through the A1 and A3 ports of the fuel inlet switching solenoid valve, and returns to the low temperature diesel tank through the B3 and B2 ports of the fuel return switching solenoid valve; the diesel in the normal temperature diesel tank enters the engine through the A2 and A3 ports of the fuel inlet switching solenoid valve, and returns to the normal temperature diesel tank through the B3 and B1 ports of the fuel return switching solenoid valve. The controller controls the fuel inlet switching solenoid valve and the fuel return switching solenoid valve according to the fuel temperature sensor TF and the engine data.

[0075] See also Figure 3 , Figure 3 A control flow diagram of a cold start device for an excavator provided in an embodiment of the present application is shown below:

[0076] After the excavator is powered on, the controller determines whether the ambient temperature is lower than the set value a. If it is higher than or equal to the set value a, it ends directly. If it is lower than the preset value a, it determines whether the fuel temperature is lower than the set value b.

[0077] If it is higher than or equal to the set value b, it ends directly. If it is lower than the set value b, the controller controls the oil inlet switching solenoid valve and the oil return switching solenoid valve to work so that the engine oil inlet and return are switched to the low temperature grade diesel tank.

[0078] Start the engine. While the engine is running, determine whether the engine water temperature (i.e. the temperature of the coolant inside the engine) is higher than the preset value c. If it is lower than or equal to the preset value c, continue to wait. If it is higher than the preset value c, the oil inlet switching solenoid valve and the oil return switching solenoid valve stop working.

[0079] When the controller receives the engine shutdown command, the oil inlet switching solenoid valve works, and after a preset time interval, the oil inlet switching solenoid valve stops working and the engine stops running.

[0080] The excavator has a delayed shutdown function, and switches the oil circuit when receiving a shutdown command. If the fuel in the engine is normal temperature grade diesel, in order to facilitate the next start, the pipeline and the diesel inside the engine need to be replaced with low temperature grade diesel. When receiving the engine shutdown command, the oil inlet switching solenoid valve can be controlled to switch the oil circuit. After the switch, the engine will run for a preset time to complete the fuel replacement in the fuel pipeline, and then shut down.

[0081] In this embodiment, other containers may be used to replace the oil tank, other types of fuel may be used, and more than two circuits may be switched.

[0082] This embodiment provides a solution for configuring two tanks with different grades of diesel at the same time, provides a method for using the oil circuit switching device of the oil inlet and return solenoid valves, and a logic control method for automatic switching of the two-grade diesel. This embodiment uses two tanks to automatically switch the oil inlet and return lines of the engine, and uses different grades of diesel in different situations, which eliminates the trouble of replacing different grades of diesel in the tanks and does not increase the cost of use, thereby solving the problem of difficulty in starting the engine at low temperature.

[0083] An excavator control system provided in an embodiment of the present application includes a main fuel container, a backup fuel container, a container switching device and an engine, wherein the container switching device is used to switch the container that provides fuel to the engine, and the number of containers that provide fuel to the engine at the same time is 1, and the freezing point of the fuel in the main fuel container is higher than the freezing point of the fuel in the backup fuel container. The excavator control system includes:

[0084] A temperature detection module, used for obtaining the temperature of the fuel in the main fuel container after receiving a power-on signal;

[0085] a first control module, configured to control the container switching device to connect the pipeline between the main fuel container and the engine if the temperature of the fuel in the main fuel container is higher than or equal to the first preset temperature, so that the engine uses the fuel in the main fuel container to work;

[0086] The second control module is used to control the container switching device to connect the pipeline between the backup fuel container and the engine if the temperature of the fuel in the main fuel container is lower than the first preset temperature, so that the engine can work with the fuel in the backup fuel container.

[0087] The excavator used in this embodiment includes a main fuel container, a backup fuel container, a container switching device and an engine, and the freezing point of the fuel in the main fuel container is higher than the freezing point of the fuel in the backup fuel container. After receiving the power-on signal, the temperature of the fuel in the main fuel container is detected; if the temperature of the fuel in the main fuel container is higher than or equal to the first preset temperature, this embodiment will switch to the main fuel container, so that the engine uses the fuel in the main fuel container; if the temperature of the fuel in the main fuel container is lower than the first preset temperature, the system will switch to the backup fuel container, so that the engine uses the fuel in the backup fuel container. This embodiment switches the container that provides fuel to the engine according to the temperature of the fuel in the main fuel container, which can avoid the interference of the low temperature environment on the start-up of the excavator and reduce the use cost of the excavator.

[0088] Furthermore, it also includes:

[0089] The temperature detection module is further used to obtain the temperature of the coolant inside the engine after controlling the container switching device to conduct the pipeline between the spare fuel container and the engine;

[0090] The first control module is also used to control the container switching device to connect the pipeline between the main fuel container and the engine if the temperature of the coolant inside the engine is higher than a second preset temperature, so that the engine can work using the fuel in the main fuel container.

[0091] Furthermore, it also includes:

[0092] A shutdown control module is used to control the container switching device to connect the pipeline between the backup fuel container and the engine when the engine is working with the fuel in the main fuel container, and to control the engine to stop working after a preset delay, so as to replace the fuel in the engine with the fuel in the backup fuel container if an engine shutdown command is received.

[0093] Furthermore, it also includes:

[0094] The temperature detection module is further used to determine whether the ambient temperature of the location of the excavator is lower than a third preset temperature before obtaining the temperature of the fuel in the main fuel container; if so, enter the step of obtaining the temperature of the fuel in the main fuel container;

[0095] The first control module is also used to control the container switching device to connect the pipeline between the main fuel container and the engine if the ambient temperature is higher than or equal to a third preset temperature, so that the engine can work using the fuel in the main fuel container.

[0096] Further, the container switching device includes an oil inlet switching solenoid valve and an oil return switching solenoid valve;

[0097] Correspondingly, the process of the first control module controlling the container switching device to conduct the pipeline between the main fuel container and the engine includes: controlling the oil inlet switching solenoid valve to conduct the oil inlet pipeline between the main fuel container and the engine; controlling the oil return switching solenoid valve to conduct the oil return pipeline between the main fuel container and the engine;

[0098] Correspondingly, the process in which the second control module controls the container switching device to connect the pipeline between the backup fuel container and the engine includes: controlling the oil inlet switching solenoid valve to connect the oil inlet pipeline between the backup fuel container and the engine; controlling the oil return switching solenoid valve to connect the oil return pipeline between the backup fuel container and the engine.

[0099] Furthermore, the excavator includes a plurality of spare fuel containers, and the freezing points of the fuel in any two spare fuel containers are different;

[0100] Correspondingly, the process in which the first control module controls the container switching device to connect the pipeline between the main fuel container and the engine includes: obtaining the ambient temperature of the location of the excavator, and selecting a target backup fuel container according to the ambient temperature; wherein the freezing point of the fuel in the target backup fuel container is lower than the ambient temperature.

[0101] Furthermore, it also includes:

[0102] The switching module is used to determine the current working condition of the excavator; it is also used to determine the container corresponding to the current working condition based on the correspondence between the working condition and the fuel type; it is also used to control the container switching device to conduct the pipeline between the container corresponding to the current working condition and the engine, so that the engine uses the fuel in the container corresponding to the current working condition to work.

[0103] Since the embodiments of the system part correspond to the embodiments of the method part, please refer to the description of the embodiments of the method part for the embodiments of the system part, which will not be repeated here.

[0104] The present application also provides a storage medium on which a computer program is stored, and when the computer program is executed, the steps provided in the above embodiment can be implemented. The storage medium may include: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0105] The present application also provides an electronic device, which may include a memory and a processor, wherein a computer program is stored in the memory, and when the processor calls the computer program in the memory, the steps provided in the above embodiment may be implemented. Of course, the electronic device may also include various network interfaces, power supplies and other components.

[0106] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of this application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of this application.

[0107] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. A method for controlling an excavator, characterized in that: The excavator comprises a main fuel container, a backup fuel container, a container switching device and an engine, the container switching device is used to switch the container that provides fuel to the engine, the number of containers that provide fuel to the engine at the same time is 1, the freezing point of the fuel in the main fuel container is higher than the freezing point of the fuel in the backup fuel container, and the excavator control method comprises: After receiving the power-on signal, obtaining the temperature of the fuel in the main fuel container; If the temperature of the fuel in the main fuel container is higher than or equal to a first preset temperature, the container switching device is controlled to connect the pipeline between the main fuel container and the engine, so that the engine uses the fuel in the main fuel container to work; If the temperature of the fuel in the main fuel container is lower than the first preset temperature, the container switching device is controlled to connect the pipeline between the backup fuel container and the engine, so that the engine can operate using the fuel in the backup fuel container.

2. The excavator control method according to claim 1, characterized in that: After controlling the container switching device to conduct the pipeline between the standby fuel container and the engine, the method further includes: Acquiring the temperature of the coolant inside the engine; If the temperature of the coolant inside the engine is higher than a second preset temperature, the container switching device is controlled to connect the pipeline between the main fuel container and the engine, so that the engine uses the fuel in the main fuel container to work.

3. The excavator control method according to claim 1, characterized in that: In the process of the engine operating using the fuel in the main fuel container, the process further includes: If an engine shutdown command is received, the container switching device is controlled to connect the pipeline between the spare fuel container and the engine, and the engine is controlled to stop working after a preset delay, so that the fuel in the engine is replaced by the fuel in the spare fuel container.

4. The excavator control method according to claim 1, characterized in that: Before obtaining the temperature of the fuel in the main fuel container, the method further includes: Determining whether the ambient temperature at the location of the excavator is lower than a third preset temperature; If yes, proceed to the step of obtaining the temperature of the fuel in the main fuel container; If not, the container switching device is controlled to connect the pipeline between the main fuel container and the engine, so that the engine can work with the fuel in the main fuel container.

5. The excavator control method according to claim 1, characterized in that: The container switching device includes an oil inlet switching solenoid valve and an oil return switching solenoid valve; Accordingly, controlling the container switching device to conduct the pipeline between the main fuel container and the engine includes: Control the oil inlet switching solenoid valve to connect the oil inlet pipeline between the main fuel container and the engine; Control the oil return switching solenoid valve to conduct the oil return pipeline between the main fuel container and the engine; Accordingly, controlling the container switching device to conduct the pipeline between the standby fuel container and the engine includes: Control the oil inlet switching solenoid valve to connect the oil inlet pipeline between the backup fuel container and the engine; The oil return switching solenoid valve is controlled to conduct the oil return pipeline between the backup fuel container and the engine.

6. The excavator control method according to claim 1, characterized in that: The excavator comprises a plurality of spare fuel containers, and the freezing points of the fuel in any two spare fuel containers are different; Accordingly, controlling the container switching device to conduct the pipeline between the main fuel container and the engine includes: The ambient temperature of the location of the excavator is obtained, and a target spare fuel container is selected according to the ambient temperature; wherein the freezing point of the fuel in the target spare fuel container is lower than the ambient temperature.

7. The excavator control method according to claim 1, characterized in that: Also includes: determining a current operating condition of the excavator; Determine the container corresponding to the current working condition according to the corresponding relationship between the working condition and the fuel type; The container switching device is controlled to conduct the pipeline between the container corresponding to the current working condition and the engine, so that the engine uses the fuel in the container corresponding to the current working condition to work.

8. An excavator control system, characterized in that: The excavator comprises a main fuel container, a backup fuel container, a container switching device and an engine, wherein the container switching device is used to switch the container that provides fuel to the engine, the number of containers that provide fuel to the engine at the same time is 1, the freezing point of the fuel in the main fuel container is higher than the freezing point of the fuel in the backup fuel container, and the excavator control system comprises: A temperature detection module, used for obtaining the temperature of the fuel in the main fuel container after receiving a power-on signal; a first control module, configured to control the container switching device to connect the pipeline between the main fuel container and the engine if the temperature of the fuel in the main fuel container is higher than or equal to a first preset temperature, so that the engine uses the fuel in the main fuel container to work; The second control module is used to control the container switching device to connect the pipeline between the backup fuel container and the engine if the temperature of the fuel in the main fuel container is lower than the first preset temperature, so that the engine can work with the fuel in the backup fuel container.

9. An electronic device, characterized in that: The method comprises a memory and a processor, wherein a computer program is stored in the memory, and when the processor calls the computer program in the memory, the steps of the excavator control method according to any one of claims 1 to 7 are implemented.

10. A storage medium, characterized in that: The storage medium stores computer executable instructions, and when the computer executable instructions are loaded and executed by the processor, the steps of the excavator control method according to any one of claims 1 to 7 are implemented.

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