A control method for a handrail box and an engineering vehicle

Abstract

This invention discloses a control method for armrest boxes and an engineering vehicle. The control method includes obtaining judgment information on whether several armrest boxes are raised based on information from seat switches and seat belt switches, as well as information on the raising of several armrest boxes; if all armrest boxes are raised, starting the engine and sending a lowering command to at least one armrest box; determining whether the engine is off based on a speed sensor; if the engine is off, sending a raise command to all armrest boxes; if the engine is not off, sending a raise or lowering command to at least one armrest box based on the received armrest box action signal, thus solving the problems of cumbersome operation and low comfort of armrest boxes.

Description

Technical Field

[0001] This invention relates to a control method for a handrail box and an engineering vehicle, belonging to the field of excavator technology. Background Technology

[0002] Common construction vehicles equipped with liftable grab handles on both sides require both grab handles to be lifted simultaneously before the vehicle can start. After starting, the grab handles must be lowered before hydraulic operations can commence. Construction vehicles, especially excavators, are indispensable in construction projects. However, damage or loosening of mechanical components such as linkages and supports in excavators can lead to abnormalities in the grab handle lifting operation. This results in cumbersome operation and low comfort. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a control method for the armrest box and an engineering vehicle, solving the technical problems of cumbersome operation and low comfort.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] In a first aspect, the present invention provides a method for controlling an armrest box, comprising:

[0006] Step 1: Based on the information from the seat switch and seat belt switch, obtain information on whether several armrest boxes are raised; if all armrest boxes are raised, start the engine, send a command to lower the armrest box to at least one side, and proceed to Step 2.

[0007] Step 2: Determine if the engine is off based on the speed sensor. If it is off, send a lift command to all armrest boxes; if it is not off, proceed to step 3.

[0008] Step 3: Based on the received motion signal of the armrest box, send a lift or lower command to at least one side of the armrest box.

[0009] In conjunction with the first aspect, further, based on the received motion signal from the armrest box, a raise or lower command is sent to at least one side of the armrest box, including:

[0010] Based on the received action signal of any armrest box, if the armrest box is in the lowered state, the controller sends a lift command to the armrest box on that side and cuts off the hydraulic action; if the armrest box on that side is in the raised state and the other armrest boxes are in the lowered state, the controller sends a lower command to the armrest box on that side; if all armrest boxes are in the raised state, the controller sends a lower command to all armrest boxes.

[0011] Furthermore, the action signal is to press and hold the safety lever switch on the armrest box for 2 seconds or more.

[0012] Furthermore, in step 1, when both the seat switch and the seatbelt switch are closed, and several armrest boxes are raised, the controller starts the engine;

[0013] If the armrest box is not raised, the controller sends a raising command to the armrest box.

[0014] Furthermore, the control method also includes: real-time detection of the vehicle's pressure data; when the vehicle's pressure data is detected to be at a non-working pressure and the engine is not turned off, the controller controls the stepper motor connected to the armrest box to lift at least one side of the armrest box and disconnect the hydraulic action.

[0015] Furthermore, when the vehicle's pressure data is detected to be at a non-working pressure for more than 18 seconds and the engine is not turned off, the controller lifts all armrest boxes by controlling the stepper motor connected to the armrest box, thus disconnecting the hydraulic action.

[0016] In a second aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the control method for an armrest box as described in any of the preceding claims.

[0017] Secondly, the present invention also provides an engineering vehicle, comprising:

[0018] Memory, used to store instructions;

[0019] A processor is configured to execute the instructions, causing the engineering vehicle to perform operations that implement the control method for a handrail box as described above.

[0020] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0021] The present invention provides a control method for the armrest box, which allows the driver to check the status of the armrest box before starting the vehicle and automatically lift the armrest box, ensuring safety while facilitating the driver's engine start operation;

[0022] The control method also includes real-time detection of the vehicle's pressure data. When the vehicle's pressure data is detected to be at a non-working pressure and the engine is not turned off, at least one armrest box is automatically lifted to cut off the hydraulic action, thereby preventing driver error due to fatigue and improving operational safety.

[0023] The engine is automatically turned off based on the speed sensor. If the engine is turned off, all armrest boxes are automatically raised, allowing the driver to get out of the vehicle without having to manually lift the armrest boxes, thus improving operating comfort. Attached Figure Description

[0024] Figure 1 This is a simplified layout diagram of the control system for an armrest box provided in an embodiment of the present invention;

[0025] Figure 2 This is an electrical schematic diagram of a control system for an armrest box provided in an embodiment of the present invention;

[0026] Figure 3 This is a flowchart of a control method for an armrest box provided by an embodiment of the present invention;

[0027] In the diagram: 1-Right safety lever switch, 2-Right proximity switch, 3-Right armrest box, 4-Right stepper motor, 5-Key switch, 6-Controller, 7-Pressure sensor, 8-Left safety lever switch, 9-Left proximity switch, 10-Left stepper motor, 11-Left armrest box, 12-Seat switch, 13-Seatbelt switch, 14-Speed ​​sensor Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0029] Example 1:

[0030] like Figure 1 , 2 The figures shown are a simplified layout diagram and an electrical schematic diagram of a control system for an armrest box provided in this embodiment. The control system includes a right armrest box 3, a left armrest box 11, and a controller 6, as well as a right safety bar switch 1, a right proximity switch 2, a right stepper motor 4, a key switch 5, a pressure sensor 7, a left safety bar switch 8, a left proximity switch 9, a left stepper motor 10, a seat switch 12, a seat belt switch 13, and a speed sensor 14, all of which are electrically connected to the controller 6.

[0031] The right safety bar switch 1 and the left safety bar switch 8 are respectively located on the safety handles in the right armrest box 3 and the left armrest box 11.

[0032] The right proximity switch 2 and the left proximity switch 9 are respectively located inside the right armrest box 3 and the left armrest box 11 and are physically connected to each other. When the right armrest box 3 is raised, the right proximity switch 2 is in the open state, and when the right armrest box 3 is lowered, the right proximity switch 2 is in the closed state; the logic of the left proximity switch 9 is the same.

[0033] The right armrest box 3 and the left armrest box 11 are installed on the left and right sides of the mechanical seat, and the key switch 5 is arranged in a position that is easy to operate on the engineering vehicle.

[0034] The right stepper motor 4 and the left stepper motor 10 are physically connected to the right armrest box 3 and the left armrest box 11, respectively, and are used to drive the armrest box to lift or lower.

[0035] Pressure sensor 7 is located inside the main pump of the machine to collect the pressure of the main pump and detect the pressure data of the whole vehicle in real time.

[0036] The seat switch 12 is located under the seat and can collect seat pressure. After receiving the seat pressure, the controller 6 controls the seat switch 12 to close.

[0037] The seat belt switch 13 is located inside the seat belt. After the seat belt is fastened, the seat belt switch 13 is closed.

[0038] The speed sensor 14 is mounted on the engine to collect engine speed information in real time.

[0039] Example 2:

[0040] This invention provides a control method for an armrest box, such as... Figure 3 The diagram shown is a flowchart of the control method, which includes the following steps:

[0041] The controller detects whether the seat switch 12 is closed to determine whether the driver is in the seat; it also detects whether the seat belt switch 13 is closed to determine whether the driver is wearing a seat belt.

[0042] The controller 6 detects the switching status of the left proximity switch 9 and the right proximity switch 2 to determine whether the left and right armrest boxes are raised.

[0043] After the vehicle is powered on, the controller 6 determines the status of the left and right armrest boxes. If only one armrest box is raised, the controller controls the stepper motor to raise the other armrest box.

[0044] Before the vehicle is started, the controller 6 detects that the driver is sitting in the seat, has fastened the seat belt, and that both armrests are raised before the vehicle is allowed to start.

[0045] After the vehicle is started, the controller 6 detects in real time whether there is a signal input of 2-3 seconds for the left safety lever switch 8 or the right safety lever switch 1, which is the action signal; if so, the controller 6 simultaneously controls the left stepper motor 10 and the right stepper motor 4 to drive the left armrest box 11 and the right armrest box 3 to fall; if not, there is no response.

[0046] Hydraulic operation is only permitted when both left and right armrest boxes are in the lowered position. To temporarily lift one armrest box and deactivate the hydraulic system, the driver simply needs to press and hold the corresponding safety lever switch. For example, to lift the left armrest box, the driver only needs to press and hold the left safety lever switch 8. Similarly, to lower the left armrest box 11, the driver only needs to press and hold the left safety lever switch 8. If the driver has simultaneously lifted both the left and right armrest boxes 11 and wants to lower them, they only need to press and hold either the left safety lever switch 8 or the right safety lever switch 1. The controller will then activate two stepper motors to lower both armrest boxes simultaneously.

[0047] When both the right armrest box 3 and the left armrest box 11 are in the lowered state, the pressure sensor 7 will detect the pressure data of the whole vehicle in real time. When the pressure is detected to be non-working pressure and the engine is running, it is determined that the driver has not performed hydraulic action for a long time. To ensure safety, the controller controls the stepper motor to lift the armrest boxes on both sides and disconnect the hydraulic action.

[0048] In this embodiment, it is preferable that when the pressure data of the whole vehicle is detected to be at a non-working pressure for more than 18 seconds and the engine is not turned off, the controller lifts all the armrest boxes by controlling the stepper motor connected to the armrest box and disconnects the hydraulic action.

[0049] When the driver performs the engine shutdown operation, the controller 6 detects that the engine is not in operation and at the same time detects the raised state of the left and right armrest boxes. If the armrests are in the lowered state at this time, the controller controls the stepper motor to raise the armrest boxes on both sides to facilitate the driver to get out of the vehicle.

[0050] Example 3:

[0051] This embodiment provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the armrest box control method described in Embodiment 2 above.

[0052] Example 4:

[0053] This embodiment provides an engineering vehicle, including:

[0054] Memory, used to store instructions;

[0055] A processor is configured to execute the instructions, causing the engineering vehicle to perform operations that implement the control method for a handrail box as described in Embodiment 2 above.

[0056] 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 control method for an armrest box, characterized in that, include: Step 1: Based on the information from the seat switch and seat belt switch, obtain information on whether several armrest boxes are raised; if all armrest boxes are raised, start the engine, send a command to lower the armrest box to at least one side, and proceed to Step 2. Step 2: Determine if the engine is off based on the speed sensor. If it is off, send a lift command to all armrest boxes; if it is not off, proceed to step 3. Step 3: Based on the received motion signal of the armrest box, send a lift or lower command to at least one armrest box; including: the controller, based on the received motion signal of any armrest box, if the armrest box on that side is in a lowered state, sends a lift command to that armrest box and cuts off the hydraulic action; if the armrest box on that side is in a raised state and the other armrest boxes are in a lowered state, sends a lower command to that armrest box; if all armrest boxes are in a raised state, sends a lower command to all armrest boxes. The control method further includes: real-time detection of the vehicle's pressure data; when the vehicle's pressure data is detected to be at a non-working pressure and the engine is not turned off, the controller controls the stepper motor connected to the armrest box to lift at least one side of the armrest box and disconnect the hydraulic action.

2. The control method according to claim 1, characterized in that, The action signal is to press and hold the safety lever switch on the armrest box for 2 seconds or more.

3. The control method according to claim 1, characterized in that, In step 1, when both the seat switch and the seat belt switch are closed, and several armrest boxes are raised, the controller starts the engine; If the armrest box is not raised, the controller sends a raising command to the armrest box.

4. The control method according to claim 1, characterized in that, When the vehicle's pressure data is detected to be at a non-working pressure for more than 18 seconds and the engine is not turned off, the controller lifts all armrest boxes by controlling the stepper motor connected to the armrest box, thus disconnecting the hydraulic action.

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

6. An engineering vehicle, characterized in that, include: Memory, used to store instructions; A processor is configured to execute the instructions, causing the engineering vehicle to perform operations that implement the control method for a handrail box as described in any one of claims 1-4.

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