A method for controlling the on / off switching of a battery relay in engineering machinery, an electronic terminal, and a storage medium.

Abstract

This invention discloses a method, electronic terminal, and storage medium for controlling the on / off state of a battery relay in construction machinery. The method includes: determining the operating state of the construction machinery based on collected engine speed information; if the operating state is in operation, or in a stopped state and simultaneously powered on without receiving a delayed disconnection command from the battery relay, determining the current battery depletion state based on the current battery voltage; if the current battery depletion state is not due to a lack of battery depletion, controlling the battery relay to remain closed. This invention can protect the safety of the entire vehicle and the durability of the battery, and facilitates battery power supply.

Description

Technical Field

[0001] This invention belongs to the field of engineering machinery technology, and specifically relates to a method for controlling the on / off state of a battery relay in engineering machinery, an electronic terminal, and a storage medium. Background Technology

[0002] In existing technologies, there are generally four methods for preventing battery drain in automobiles. The first is to design a battery drain protector, which adds a voltage detection module, a vibration detection module, and a Bluetooth detection module, and controls the on / off state of the battery relay based on the status changes of these three modules. The second is to design a battery drain protection system that automatically starts the engine to charge the battery if the vehicle is in a locked / dormant state, the battery is in a state of impending drain, the gear is in P or N, and the engine fuel level is greater than or equal to a preset value. The third is to add a battery relay that automatically disconnects when the driver locks the vehicle and leaves, stopping power supply to electrical devices. The fourth is to design an algorithm model for battery drain protection that determines the effectiveness of radio frequency interference signals; if the transmitted radio frequency interference signal is effective, it minimizes battery drain.

[0003] In the above methods, the vehicle is stopped, the doors are closed, and the car is locked with a key, which shuts off the power relay to cut off power to the entire vehicle. For construction machinery products, adding vibration sensors and Bluetooth modules would increase costs, frequent engine self-starts would increase fuel consumption, and radio frequency interference signals are not the main cause of battery depletion. Although the above patents can all protect the battery, they all immediately disconnect the battery relay when the machine is stopped. This method has two problems: first, it does not consider the battery status under normal machine operation; second, immediately shutting off the relay may affect the safety of the entire machine and cannot meet the needs of customers using construction machinery in some special operating scenarios. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a method for controlling the on / off state of a battery relay in engineering machinery, an electronic terminal and a storage medium, which can control the on / off state of the battery relay in a targeted manner according to actual working conditions and customer needs.

[0005] To achieve the above objectives, the present invention is implemented using the following technical solution:

[0006] In a first aspect, the present invention provides a method for controlling the on / off state of a battery relay for construction machinery, comprising: determining the operating state of the construction machinery based on collected engine speed information;

[0007] If the operating state of the construction machinery is in operation, or if the operating state of the construction machinery is in shutdown state and is simultaneously powered on and has not received a battery relay delay disconnection command, then the current battery depletion state is determined based on the current battery voltage value.

[0008] If the battery is currently in a state of low charge, then control the battery relay to disconnect after a delay;

[0009] If the battery is currently in a non-discharged state, then the battery relay is kept closed.

[0010] In conjunction with the first aspect, it further includes,

[0011] If the construction machinery is in a stopped state and is also not powered on, the battery relay will be immediately disconnected.

[0012] In conjunction with the first aspect, further, if the operating state of the construction machinery is a stopped state and simultaneously a powered-on state, when a delayed disconnection command for the battery relay is received, the battery relay is controlled to disconnect after a delay.

[0013] In conjunction with the first aspect, the delay time for the battery relay to disconnect is further defined by the instrument of the construction machinery. When the instrument of the construction machinery is not set with the delay time, the default delay time is read from the storage area.

[0014] In conjunction with the first aspect, further, when the delay time is preset through the instrument of the engineering machinery, the delay time is positively correlated with the current voltage value of the battery, and its expression is:

[0015]

[0016] Among them, T length V represents the delay time. value T1 represents the current battery voltage, and T2 and T3 represent the set delay times, where T1 < T2 < T3.

[0017] In conjunction with the first aspect, further, the current state of battery depletion is determined based on the current battery voltage value, including:

[0018] If the current voltage of the battery is lower than the set threshold, it indicates that the battery is currently in a state of being undercharged; otherwise, it indicates that the battery is currently in a state of not being undercharged.

[0019] In a second aspect, the present invention provides an electronic terminal, comprising:

[0020] First judgment module: used to judge the operating status of the construction machinery based on the collected engine speed information;

[0021] The second judgment module is used to determine the current battery depletion state based on the current battery voltage value if the operating state of the construction machinery is in operation, or the operating state of the construction machinery is in shutdown state and is simultaneously powered on and has not received a battery relay delay disconnection command.

[0022] Control execution module: If the current state of the battery is low-charge, control the battery relay to disconnect after a delay; if the current state of the battery is not low-charge, control the battery relay to remain closed.

[0023] Thirdly, the present invention provides an electronic terminal, including a processor and a memory connected to the processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, it implements the steps of the method described in any one of the first aspects.

[0024] Fourthly, a computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the steps of the method described in any of the first aspects.

[0025] Fifthly, an engineering machine includes the electronic terminal described in the second or third aspect.

[0026] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The method provided by the embodiments of the present invention determines the operating status of construction machinery based on the collected engine speed information. By considering the operating status of construction machinery, it avoids the adverse consequences caused by the immediate disconnection of the battery in special scenarios. At the same time, it determines whether the battery is depleted or not based on the current voltage value of the battery. Taking into account the power-on status and the delayed disconnection command of the battery relay, it considers multiple scenarios such as safety, practicality, and (protecting the battery) preventing the driver from forgetting to turn off the vehicle's electrical equipment, and adapts to the corresponding battery relay on / off control method. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the battery power supply system provided in an embodiment of the present invention;

[0028] Figure 2 This is a control flowchart for the on / off switching of the battery relay provided in an embodiment of the present invention. Detailed Implementation

[0029] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments and specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations thereof. In the absence of conflict, the embodiments and technical features in the embodiments can be combined with each other.

[0030] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0031] Example 1:

[0032] Figure 2 This is a flowchart illustrating the on / off control method of a battery relay for engineering machinery according to Embodiment 1 of the present invention. This flowchart only shows the logical sequence of the method described in this embodiment. Provided there are no conflicts, different methods may be used in other possible embodiments of the present invention. Figure 2 Complete the steps shown or described in the order indicated.

[0033] See Figure 2 The method in this embodiment specifically includes:

[0034] Engine speed information is collected to determine the operating status of the construction machinery. If the engine speed is zero, it indicates that the construction machinery is in a stopped state; otherwise, it indicates that the construction machinery is in a running state.

[0035] If the construction machinery is in a stopped state, the power-on status is further collected to determine the closed state of the key switch. If it is not in a powered state, it indicates that the key switch is in an open state, and the driver needs to disconnect the power. The battery relay should be disconnected immediately. Otherwise, it indicates that the key switch is in a closed state, and the battery relay is controlled to open and close according to the battery relay delay disconnect command and the current battery voltage value.

[0036] If the construction machinery is in operation, the battery relay can be switched on and off based on the current battery voltage.

[0037] The current battery voltage value can be used to determine the current state of the battery. If the current state of the battery is indeed low, the battery relay is controlled to disconnect after a delay; if the current state of the battery is not low, the battery relay is controlled to remain closed.

[0038] Taking a certain brand of car as an example, the driver first judges the operating status of the car, then judges the power-on status of the car and whether the driver needs the battery relay to disconnect in a delayed manner, and finally determines the control method of the battery relay based on the collected battery voltage value.

[0039] See Figure 1 A certain construction machinery is equipped with electrical equipment and switching devices. The electrical equipment includes a main controller, instruments, a switch panel, an ECU, a horn, and work lights, all powered by a 24V battery (the protection range is not limited to 24V). The switching devices include a main power switch, a key switch, a work light switch, and a battery relay. When the main power switch is closed, a circuit is established at the battery end; when the key switch is closed, a circuit is established at the main controller, switch panel, instruments, and air conditioning unit; and when the work light switch is closed, a circuit is established at the cab work lights and outdoor work lights. If the battery relay is in a normally closed state when the battery voltage is within the normal range and the set delay time is normal, opening the switch will directly disconnect the battery circuit. The on / off signal for the battery relay is provided by the main controller, and the battery relay is initially in a closed state.

[0040] The battery relay on / off control method provided in this invention considers various scenarios, including safety, practicality, and preventing drivers from forgetting to turn off vehicle electrical equipment (to protect the battery). It adapts the battery relay on / off function to different scenarios, as detailed below:

[0041] From a safety perspective, considering the safety issues caused by abnormal battery charging during the operation of construction machinery, when the construction machinery is in operation, the current battery voltage value is obtained and compared with a preset threshold. If the current battery voltage value is lower than the preset threshold, it indicates that the battery is currently low on charge. This fault can be indicated on the construction machinery's instrument panel, and a delay time for the battery relay to disconnect can be set via the instrument panel (if no delay time is set, the default delay time can be read from the storage area). Finally, after the delay time expires, the battery relay disconnects, and the construction machinery stops operating. If the current battery voltage value is not lower than the preset threshold, it indicates that the battery is not low on charge, and the battery relay remains closed. When the construction machinery is in operation and the current battery voltage value is lower than the preset threshold (i.e., the battery is low on charge), the battery relay disconnects after a delay. This protects the battery and also gives the driver sufficient time to drive out of the danger zone, complete the task, stop the machine for inspection, and resolve any short circuits.

[0042] From a practical standpoint, taking a driver operating a vehicle at night without lighting as an example, when the vehicle is stopped but still powered on and receives a command to delay disconnect the battery relay, the battery relay is controlled to disconnect after a delay. This control method allows for illumination using the exterior work lights while ensuring that the vehicle's power is cut off within a specified time.

[0043] In addition, it should be considered that if the construction machinery is in operation but not powered on, the battery relay should be immediately disconnected.

[0044] From the perspective of protecting the battery, drivers often forget to turn off electrical equipment in the vehicle, leading to severe battery depletion. Therefore, the control method provided in this embodiment of the invention determines the current battery depletion state based on the current battery voltage value when the vehicle is in a stopped state but simultaneously powered on and has not received a battery relay delay disconnection command. If the current battery voltage value is lower than a preset threshold (i.e., the battery is currently depleted), a low battery voltage fault can be indicated on the instrument panel, and the delay time for the battery relay to disconnect can be set on the instrument panel (if no delay time is set, the default delay time is read from the storage area). After the delay time expires, the battery relay disconnects, and the vehicle stops running. If the current battery voltage value is compared with and exceeds the preset threshold, the battery relay remains closed.

[0045] Furthermore, the preset delay time is positively correlated with the current battery voltage value, and its expression is:

[0046]

[0047] Among them, T length V represents the delay time. value This is the current battery voltage, in volts (V).

[0048] T1, T2, and T3 are the set delay times, where T1 < T2 < T3. It should be noted that the cutoff points of 11.5V and 23.5V in the above formula are only examples and can be changed according to actual design needs.

[0049] Example 2:

[0050] This invention provides an electronic terminal, comprising:

[0051] First judgment module: used to judge the operating status of the construction machinery based on the collected engine speed information;

[0052] The second judgment module is used to determine the current battery depletion state based on the current battery voltage value if the operating state of the construction machinery is in operation, or the operating state of the construction machinery is in shutdown state and is simultaneously powered on and has not received a battery relay delay disconnection command.

[0053] Control execution module: If the current state of the battery is low-charge, control the battery relay to disconnect after a delay; if the current state of the battery is not low-charge, control the battery relay to remain closed.

[0054] The electronic terminal provided in this embodiment of the invention can execute the on / off control method of the engineering machinery battery relay provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0055] Example 3:

[0056] This invention also provides an electronic terminal, including: a processor and a memory connected to the processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the steps of the method described in Embodiment 1 are performed; thus, it has the corresponding functional modules and beneficial effects of performing the method.

[0057] Example 4:

[0058] This invention also provides a computer-readable storage medium storing a computer program thereon, characterized in that the program is executed by a processor to perform the steps of the method described in Embodiment 1, and has the corresponding functional modules and beneficial effects of executing the method.

[0059] Example 5:

[0060] This invention also provides an engineering machine, including the electronic terminal described in Embodiment 2 or Embodiment 3.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for controlling the on / off switching of a battery relay in engineering machinery, characterized in that, include: The operating status of the construction machinery is determined based on the collected engine speed information; If the construction machinery is in operation, then the current battery charge level is determined based on the current battery voltage. If the construction machinery is in a stopped state and simultaneously powered on, and has not received a battery relay delay disconnect command, then the current battery depletion state is determined based on the current battery voltage value. If the battery is currently in a state of low charge, then control the battery relay to disconnect after a delay; If the current state of the battery is not low, then the battery relay is kept closed. The delay time for the battery relay to disconnect is preset by the instrument of the construction machinery. When the instrument of the construction machinery is not set with the delay time, the default delay time is read from the storage area. When the delay time is preset via the instruments of the engineering machinery, the delay time is positively correlated with the current voltage value of the battery, and its expression is: ， in, T length V represents the delay time. value The current battery voltage value is T1, T2, and T3 are the set delay times. <T2<T3。 2. The on / off control method for a battery relay according to claim 1, characterized in that, It also includes the option to immediately disconnect the battery relay if the construction machinery is in a stopped state and simultaneously not powered on.

3. The on / off control method for a battery relay according to claim 1, characterized in that, If the construction machinery is in a stopped state but is also powered on, when a delayed disconnect command for the battery relay is received, the battery relay is controlled to disconnect after a delay.

4. The on / off control method for a battery relay according to claim 1, characterized in that, Determine the current discharged state of the battery based on its current voltage value, including: If the current voltage of the battery is lower than the set threshold, it indicates that the battery is currently in a state of being undercharged; otherwise, it indicates that the battery is currently in a state of not being undercharged.

5. An electronic terminal, characterized in that, include: First judgment module: used to judge the operating status of construction machinery based on the collected engine speed information; The second judgment module is used to determine the current low-charge state of the battery based on the current voltage value of the battery if the operating state of the engineering machinery is the running state. If the construction machinery is in a stopped state and simultaneously powered on, and has not received a battery relay delay disconnect command, then the current battery depletion state is determined based on the current battery voltage value. Control execution module: If the current state of the battery is low charge, control the battery relay to open after a delay; if the current state of the battery is not low charge, control the battery relay to remain closed. The delay time for the battery relay to disconnect is preset by the instrument of the construction machinery. When the instrument of the construction machinery is not set with the delay time, the default delay time is read from the storage area. When the delay time is preset via the instruments of the engineering machinery, the delay time is positively correlated with the current voltage value of the battery, and its expression is: ， in, T length V represents the delay time. value The current battery voltage value is T1, T2, and T3 are the set delay times. <T2<T3。 6. An electronic terminal, characterized in that, The method includes a processor and a memory connected to the processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the steps of the method as described in any one of claims 1 to 4 are performed.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the steps of the method according to any one of claims 1 to 4.

8. An engineering machinery, characterized in that, Includes the electronic terminal as described in claim 5 or 6.

Images