Harvester transition efficiency improving system

Abstract

The utility model provides a harvester transition efficiency improving system. The harvester transition efficiency improving system comprises a working mode selection switch, a gear switch, a walking handle, a steering handle, a whole vehicle controller, a walking pump and a walking motor. The output ends of the working mode selection switch, the gear switch, the walking handle and the steering handle are respectively connected with the input end of the whole vehicle controller, and the output end of the whole vehicle controller is respectively connected with the walking pump and the walking motor; the working mode selection switch is used for sending a working mode selection switch signal to the vehicle control unit; the gear switch is used for sending a gear switch signal to the vehicle control unit; the walking handle is used for outputting a first voltage type analog quantity signal to the whole vehicle controller; the steering handle is used for outputting a second voltage type analog quantity signal to the vehicle control unit; the whole vehicle controller is used for outputting walking pump control current and walking motor control current; the walking pump is used for receiving walking pump control current; the walking motor is used for receiving the walking motor control current.

Description

Technical Field

[0001] This application relates to the field of harvester technology, and more specifically, to a harvester transfer efficiency improvement system. Background Technology

[0002] When harvesters are operating in the field, to ensure optimal work quality, operators generally operate at a lower speed. This allows more power to be distributed to the working components, ensuring optimal crop feeding and threshing and cleaning at the rated operating speed for best results. Therefore, harvesters require slower speeds, sufficient power, and appropriate rotational speeds during operation. After finishing their work, users need to move the harvester to the next work site as quickly as possible to minimize idle time and improve overall efficiency. This contradicts the need for slower operation.

[0003] Currently, in order to improve the overall operating efficiency of harvesters, the requirements of operating conditions or the relocation of harvesters can be considered during the design process.

[0004] However, if only the needs of the working conditions are considered, it will lead to a longer transfer time for the harvester and a lower transfer efficiency, which will greatly reduce the overall working efficiency of the harvester. If only the transfer situation is considered, it will lead to a significant reduction in the quality of the work, resulting in greater losses and reduced cleanliness of the harvester. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a harvester relocation efficiency improvement system, which can output the travel pump control current and travel motor control current through working mode selection switch signal, gear switch signal, first voltage type analog signal and second voltage type analog signal, so as to adjust the displacement of travel pump and travel motor, thereby adjusting the driving force and travel speed of harvester. This solves the contradiction between the working condition and the relocation condition of harvester, and realizes the balance between the working condition and the relocation condition. This allows the harvester to operate at the optimal travel speed and the best driving force during operation, improving the working effect of harvester, that is, improving the cleanliness of harvester and reducing harvester losses. During relocation, it can relocate at the fastest speed, reducing relocation time and improving relocation efficiency, thereby greatly improving the overall working efficiency of harvester.

[0006] In a first aspect, embodiments of this application provide a harvester relocation efficiency improvement system. The system includes a working mode selection switch, a gear switch, a travel handle, a steering handle, a vehicle controller, a travel pump, and a travel motor. The output terminals of the working mode selection switch, the gear switch, the travel handle, and the steering handle are respectively connected to the input terminal of the vehicle controller, and the output terminal of the vehicle controller is respectively connected to the travel pump and the travel motor. The working mode selection switch, the gear switch, the travel handle, the steering handle, the travel pump, and the travel motor are all electrically connected to the vehicle controller via hard wiring.

[0007] The working mode selection switch is used to send a corresponding working mode selection switch signal to the vehicle controller in response to the user's selection operation on the working mode selection switch; wherein, the working mode includes operation mode and transfer mode;

[0008] The gear position switch is used to send a gear position switch signal to the vehicle controller;

[0009] The travel handle is used to output a corresponding first voltage-type analog signal to the vehicle controller according to the first position of the travel handle.

[0010] The steering handle is used to output a corresponding second voltage-type analog signal to the vehicle controller according to the second position of the steering handle.

[0011] The vehicle controller is used to output a travel pump control current for the travel pump and a travel motor control current for the travel motor based on the working mode selection switch signal, the gear switch signal, the first voltage-type analog signal and the second voltage-type analog signal.

[0012] The walking pump is used to receive the walking pump control current;

[0013] The walking motor is used to receive the walking motor control current.

[0014] In one possible implementation, the system further includes a display screen; the display screen is connected to the vehicle controller CAN bus.

[0015] The vehicle controller is used to send the travel speed of the harvester to the display screen;

[0016] The display screen is used to receive driving speed.

[0017] In one possible implementation, the travel pump is used to output its own travel pump real-time current and travel pump displacement to the vehicle controller; wherein, the range of the travel pump real-time current is determined by the dead zone current and the maximum current.

[0018] In one possible implementation, the travel motor is used to output its own real-time travel motor current and travel motor displacement to the vehicle controller.

[0019] In one possible implementation, the vehicle controller is further configured to output a travel motor control current of the travel motor at a preset current change frequency; wherein the current change frequency is determined by the acceleration set by the user.

[0020] In one possible implementation, the output is the travel pump control current for the travel pump:

[0021] The first position of the walking handle is determined based on the first voltage-type analog signal;

[0022] In response to the first position being the middle position, the output of the travel pump control current for the travel pump is 0, so as to keep the harvester stationary;

[0023] In response to the first position being forward or backward, the current percentage for the control current of the walking pump is calculated based on the first voltage-type analog signal; wherein, the current percentage includes the current forward percentage and the current backward percentage;

[0024] The travel pump control current output to the travel pump is determined based on the current percentage.

[0025] In one possible implementation, calculating the current percentage for the travel pump control current based on the first voltage-type analog signal includes:

[0026] Calculate the difference between the real-time first voltage analog signal when the first position is forward and the first voltage analog signal when the first position is in the middle position, and calculate the forward percentage of the harvester based on the difference;

[0027] The difference between the first voltage analog signal when the first position is in the middle position and the real-time first voltage analog signal when the first position is in the backward position is calculated, and the backward percentage of the harvester is calculated based on the difference.

[0028] In one possible implementation, determining the travel pump control current output to the travel pump based on the current percentage includes:

[0029] Obtain the real-time current and displacement of the walking pump output;

[0030] Based on the current percentage, the dead zone current of the travel pump, the maximum current, and the displacement of the travel pump, the real-time current value output to the travel pump is calculated.

[0031] The travel pump control current output to the travel pump is adjusted based on the real-time current value.

[0032] In one possible implementation, the output of the travel motor control current for the travel motor includes:

[0033] Based on the relationship between the real-time current of the walking motor and the displacement of the walking motor, as well as the gear switch signal, the walking motor control current output to the walking motor is determined.

[0034] In one possible implementation, the vehicle controller is further configured to calculate the left-turn percentage and right-turn percentage of the harvester based on the second voltage-type analog signal, and adjust the steering of the harvester based on the left-turn percentage and the right-turn percentage.

[0035] This application provides a harvester relocation efficiency improvement system, which includes: a working mode selection switch, a gear switch, a travel handle, a steering handle, a vehicle controller, a travel pump, and a travel motor. The output terminals of the working mode selection switch, gear switch, travel handle, and steering handle are respectively connected to the input terminals of the vehicle controller, and the output terminals of the vehicle controller are respectively connected to the travel pump and the travel motor. The working mode selection switch, gear switch, travel handle, steering handle, travel pump, and travel motor are all electrically connected to the vehicle controller via hard wiring. The working mode selection switch is used to respond to the user's selection operation of the working mode selection switch by sending the corresponding working mode selection switch signal. The signal is sent to the vehicle controller; the gear position switch is used to send the gear position switch signal to the vehicle controller; the travel handle is used to output a corresponding first voltage-type analog signal to the vehicle controller according to the first position of the travel handle; the steering handle is used to output a corresponding second voltage-type analog signal to the vehicle controller according to the second position of the steering handle; the vehicle controller is used to output the travel pump control current for the travel pump and the travel motor control current for the travel motor based on the working mode selection switch signal, the gear position switch signal, the first voltage-type analog signal and the second voltage-type analog signal; the travel pump is used to receive the travel pump control current; the travel motor is used to receive the travel motor control current. This application outputs control current for the travel pump and the travel motor by using a working mode selection switch signal, a gear switch signal, a first voltage-type analog signal, and a second voltage-type analog signal. This adjusts the displacement of the travel pump and the travel motor, thereby adjusting the driving force and travel speed of the harvester. This resolves the contradiction between the harvester's working conditions and its relocation conditions, achieving a balance between the two. The harvester can operate at optimal speed and with the best driving force during operation, improving its work efficiency by increasing cleanliness and reducing losses. During relocation, it can be moved at the fastest speed, reducing relocation time and increasing relocation efficiency, thus significantly improving the overall operating efficiency of the harvester.

[0036] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1This is a flowchart of a harvester transfer efficiency improvement system according to an embodiment of this application;

[0039] Figure 2 This is a schematic diagram of the system composition of the harvester transfer efficiency improvement system. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the accompanying drawings in this application are for illustrative and descriptive purposes only and are not intended to limit the scope of protection of this application. Furthermore, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate operations implemented according to some embodiments of this application. It should be understood that the operations in the flowcharts may not be implemented in sequence, and steps without logical contextual relationships may be reversed or implemented simultaneously. In addition, those skilled in the art, guided by the content of this application, may add one or more other operations to the flowcharts, or remove one or more operations from the flowcharts.

[0041] Furthermore, the described embodiments are merely some, not all, of the embodiments of this application. The components of the embodiments of this application described and illustrated herein can typically be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0042] It should be noted that the term "comprising" will be used in the embodiments of this application to indicate the presence of the features declared thereafter, but does not exclude the addition of other features.

[0043] Considering that harvesters typically operate at lower speeds to ensure optimal harvesting quality, this allows for greater power distribution to the working components, ensuring optimal crop feeding and optimal speed for threshing and cleaning. Therefore, harvesters require slower speeds, sufficient power, and suitable rotational speeds during operation. After finishing their work, users need to move the harvester to the next work site as quickly as possible to minimize idle time and improve overall efficiency. This contradicts the need for slower operation.

[0044] Currently, to improve the overall operating efficiency of harvesters, the design process can consider the requirements of the operating conditions or the relocation of the harvester. However, if only the requirements of the operating conditions are considered, the relocation time of the harvester will be longer and the relocation efficiency will be lower, thus greatly reducing the overall operating efficiency of the harvester. If only the relocation situation is considered, the quality of the harvest will be greatly reduced, resulting in increased losses and reduced cleanliness of the harvester.

[0045] To address this issue, this application provides a harvester relocation efficiency improvement system. The outputs of the working mode selection switch, gear switch, travel handle, and steering handle are respectively connected to the inputs of the vehicle controller. The outputs of the vehicle controller are respectively connected to the travel pump and travel motor. Through the working mode selection switch signal, gear switch signal, first voltage-type analog signal, and second voltage-type analog signal, the system outputs control currents for the travel pump and travel motor to adjust their displacement. This, in turn, adjusts the harvester's driving force and travel speed, resolving the conflict between the harvester's operating conditions and relocation conditions. This achieves a balance between the two, allowing the harvester to operate at optimal speed and with optimal driving force during operation, improving its work efficiency (i.e., increasing cleanliness and reducing losses) and enabling rapid relocation, reducing relocation time and increasing efficiency. Therefore, the overall operating efficiency of the harvester is significantly improved.

[0046] Figure 1 This is a flowchart of a harvester transfer efficiency improvement system according to an embodiment of this application, as shown below. Figure 1 As shown, the harvester transfer efficiency improvement system 100 of this application embodiment includes a working mode selection switch 1, a gear switch 2, a travel handle 3, a steering handle 4, a vehicle controller 5, a travel pump 6, and a travel motor 7.

[0047] The outputs of the operating mode selection switch 1, gear switch 2, travel handle 3, and steering handle 4 are connected to the inputs of the vehicle controller 5, and the outputs of the vehicle controller 5 are connected to the travel pump 6 and travel motor 7, respectively. The operating mode selection switch 1, gear switch 2, travel handle 3, steering handle 4, travel pump 6, and travel motor 7 are electrically connected to the vehicle controller 5 via hard wiring. For example, ... Figure 2 As shown.

[0048] The working mode selection switch 1 is used to send the corresponding working mode selection switch signal to the vehicle controller 5 in response to the user's selection operation on the working mode selection switch 1; wherein, the working modes include operation mode and transfer mode.

[0049] Gear switch 2 is used to send the gear switch signal to the vehicle controller 5.

[0050] The travel handle 3 is used to output a corresponding first voltage-type analog signal to the vehicle controller according to the first position of the travel handle 3.

[0051] Steering handle 4 is used to output a corresponding second voltage-type analog signal to the vehicle controller according to the second position of steering handle 4.

[0052] The vehicle controller 5 is used to output the travel pump control current for the travel pump 6 and the travel motor control current for the travel motor 7 based on the working mode selection switch signal, gear switch signal, first voltage type analog signal and second voltage type analog signal.

[0053] The travel pump 6 is used to receive the control current of the travel pump.

[0054] The travel motor 7 is used to receive the control current of the travel motor.

[0055] The harvester transfer efficiency improvement system 100 provided in this application embodiment includes: a working mode selection switch 1, a gear switch 2, a travel handle 3, a steering handle 4, a vehicle controller 5, a travel pump 6, and a travel motor 7. The output terminals of the working mode selection switch 1, gear switch 2, travel handle 3, and steering handle 4 are respectively connected to the input terminals of the vehicle controller 5, and the output terminals of the vehicle controller 5 are respectively connected to the travel pump 6 and the travel motor 7. The working mode selection switch 1, gear switch 2, travel handle 3, steering handle 4, travel pump 6, and travel motor 7 are electrically connected to the vehicle controller 5 via hard wiring. The working mode selection switch 1 is used to respond to the user's selection operation on the working mode selection switch 1, and to select the corresponding working mode. The selector switch signal is sent to the vehicle controller 5; the gear switch 2 is used to send the gear switch signal to the vehicle controller 5; the travel handle 3 is used to output a corresponding first voltage-type analog signal to the vehicle controller according to the first position of the travel handle 3; the steering handle 4 is used to output a corresponding second voltage-type analog signal to the vehicle controller according to the second position of the steering handle 4; the vehicle controller 5 is used to output the travel pump control current for the travel pump 6 and the travel motor control current for the travel motor 7 based on the working mode selector switch signal, the gear switch signal, the first voltage-type analog signal and the second voltage-type analog signal; the travel pump 6 is used to receive the travel pump control current; the travel motor 7 is used to receive the travel motor control current. The harvester relocation efficiency improvement system of this application outputs the travel pump control current and travel motor control current through working mode selection switch signal, gear switch signal, first voltage type analog signal and second voltage type analog signal, so as to adjust the displacement of travel pump and travel motor, thereby adjusting the driving force and travel speed of harvester. It solves the contradiction between the working condition and the relocation condition of harvester, and realizes the balance between the working condition and the relocation condition. It enables harvester to operate at the optimal travel speed and the best driving force during operation, improves the working effect of harvester, that is, improves the cleanliness of harvester and reduces harvester loss. During relocation, it can relocate at the fastest speed, reduce relocation time and improve relocation efficiency, thereby greatly improving the overall working efficiency of harvester.

[0056] Furthermore, the harvester transfer efficiency improvement system 100 also includes a display screen; the display screen is connected to the vehicle controller 5CAN.

[0057] The vehicle controller 5 is used to send the harvester's travel speed to the display screen;

[0058] The display screen is used to receive the vehicle speed.

[0059] Furthermore, the travel pump 6 is used to output its own travel pump real-time current and travel pump displacement to the vehicle controller 5; wherein, the range of the travel pump real-time current is determined by the dead zone current and the maximum current.

[0060] Furthermore, the travel motor 7 is used to output its own real-time current and displacement to the vehicle controller 5.

[0061] Furthermore, the vehicle controller 5 is also used to output the travel motor control current of the travel motor at a preset current change frequency; wherein, the current change frequency is determined by the acceleration set by the user.

[0062] Furthermore, when outputting the travel pump control current for the travel pump 6, the first position of the travel handle 3 is determined based on the first voltage-type analog signal; in response to the first position being the neutral position, the output travel pump control current for the travel pump 6 is 0, so that the harvester is stationary; in response to the first position being forward or backward, the current percentage for the travel pump control current is calculated based on the first voltage-type analog signal; the travel pump control current output to the travel pump 6 is determined based on the current percentage. The current percentage includes the forward current percentage and the backward current percentage.

[0063] Furthermore, when calculating the current percentage for the control current of the walking pump based on the first voltage-type analog signal, the difference between the real-time first voltage-type analog signal when the first position is forward and the first voltage-type analog signal when the first position is in the middle position is calculated, and the forward percentage of the harvester is calculated based on the difference; the difference between the first voltage-type analog signal when the first position is in the middle position and the real-time first voltage-type analog signal when the first position is backward is calculated, and the backward percentage of the harvester is calculated based on the difference.

[0064] Furthermore, when determining the travel pump control current output to the travel pump 6 based on the current percentage, the real-time current and displacement of the travel pump 6 are obtained; based on the current percentage, the dead zone current, the maximum current, and the displacement of the travel pump, the real-time current value output to the travel pump 6 is calculated; and the travel pump control current output to the travel pump 6 is adjusted based on the real-time current value.

[0065] Furthermore, when outputting the travel motor control current for the travel motor 7, the travel motor control current output to the travel motor 7 is determined based on the relationship between the real-time current of the travel motor and the displacement of the travel motor, as well as the gear switch signal.

[0066] Furthermore, the vehicle controller 5 is also used to calculate the left turn percentage and right turn percentage of the harvester based on the second voltage-type analog signal, and adjust the steering of the harvester based on the left turn percentage and right turn percentage.

[0067] The following details the control process of the harvester transfer efficiency improvement system of this application:

[0068] The working mode selection switch 1 is used to respond to the user's selection operation on the working mode selection switch 1, determine the corresponding working mode, and send the corresponding working mode selection switch signal to the vehicle controller 5. Among them, the working modes include operation mode and transfer mode (i.e., transfer mode).

[0069] It should be noted that users can select the desired working mode by pressing the working mode selection switch 1. When working, select the working mode; when changing sites, select the relocation mode.

[0070] Gear position switch 2 is used to send a gear position switch signal to the vehicle controller 5 to adjust the speed gear of the harvester. The speed gears include first gear, second gear, and third gear. Specifically, gear position switch 2 refers to the first, second, and third gears on the gearbox.

[0071] The travel handle 3 is used to output a corresponding first voltage-type analog signal to the vehicle controller according to the first position of the travel handle 3. Different first positions of the travel handle 3 correspond to different first voltage-type analog signals.

[0072] It should be noted that the first position of the travel handle 3 includes forward, neutral, and backward, and the first position represents the real-time position of the travel handle 3. The voltage range of the first voltage-type analog signal can be 0.5V-4.5V. For example, 2.5V-4.5V can correspond to forward, 0.5V-2V to backward, and 2V-2.5V to neutral.

[0073] Specifically, the travel handle 3 is a handle that controls the vehicle to move forward and backward. The handle signal is a voltage-type analog signal of 0.5V-4.5V. Different voltages can be output at different handle positions, and different position information is sent to the controller through different voltages.

[0074] The steering handle 4 is used to output a corresponding second voltage-type analog signal to the vehicle controller according to the second position of the steering handle 4. Different second positions of the steering handle 4 correspond to different second voltage-type analog signals, and the second position represents the real-time position of the steering handle 4; the second position of the steering handle 4 includes left turn and right turn; the voltage range of the second voltage-type analog signal can be 0.5V-4.5V.

[0075] Specifically, the steering handle 4 is a handle for controlling the vehicle's steering. The steering signal can be a voltage-type analog signal of 0.5V-4.5V. Different voltages can be output at different handle positions, and different position information can be sent to the controller through different voltages.

[0076] The vehicle controller 5 is used to output the travel pump control current for the travel pump 6 and the travel motor control current for the travel motor 7 based on the working mode selection switch signal, gear switch signal, first voltage type analog signal and second voltage type analog signal.

[0077] It should be noted that the vehicle controller 5, as the control unit for the vehicle's movement, receives signals from the working mode selection switch 1, gear switch 2, travel handle 3 voltage and steering handle 4 voltage, and processes these signals to output control current for the travel pump 6 and travel motor 7.

[0078] The travel pump 6 receives the travel pump control current and adjusts its own travel pump displacement based on this current. It should be noted that adjusting the travel pump displacement via the travel pump control current ensures smooth acceleration and deceleration of the vehicle.

[0079] The travel motor 7 receives the travel motor control current and adjusts its own travel motor displacement based on the travel motor control current in a preset adjustment mode to adjust the driving force and travel speed of the harvester. The adjustment mode can be two-level multi-stage adjustment.

[0080] It is understandable that a larger drive motor displacement results in greater driving force and a slower driving speed; conversely, a smaller drive motor displacement results in less driving force and a faster driving speed. Therefore, by adjusting the drive motor displacement through multi-stage control of the drive motor current, a smooth adjustment of the drive motor displacement can be achieved, thereby smoothly regulating the vehicle's driving force and speed.

[0081] Furthermore, when outputting the travel pump control current for the travel pump 6, the first position of the travel handle 3 is determined based on the first voltage-type analog signal; in response to the first position being the middle position, the travel pump control current output for the travel pump 6 is 0, so that the harvester is stationary; in response to the first position being forward or backward, the current percentage of the harvester is calculated based on the first voltage-type analog signal; and the travel pump control current output to the travel pump 6 is determined based on the current percentage.

[0082] The current percentage includes current forward percentage and current backward percentage; the current percentage includes current forward percentage or current backward percentage; the first position corresponding to the current forward percentage is forward, and the first position corresponding to the current backward percentage is backward.

[0083] Specifically, the travel handle 3 sends different position information first voltage-type analog signals to the vehicle controller 5 through different voltages. The vehicle controller 5 calibrates the real-time first position of the travel handle 3 according to the position information corresponding to the first voltage-type analog signal, which is divided into three positions: forward, middle, and backward. According to the real-time position of the handle, when the handle is in the middle position, the output travel pump control current is 0, and the harvester is stationary; when the handle is in the forward position, the current percentage for the travel pump control current is calculated according to the first voltage-type analog signal.

[0084] Optionally, when calculating the current percentage for the control current of the walking pump based on the first voltage-type analog signal, the difference between the real-time first voltage-type analog signal when the first position is forward and the first voltage-type analog signal when the first position is in the middle position is calculated, and the forward percentage of the harvester is calculated based on the difference; the difference between the first voltage-type analog signal when the first position is in the middle position and the real-time first voltage-type analog signal when the first position is backward is calculated, and the backward percentage of the harvester is calculated based on the difference.

[0085] Specifically, when the first position of the travel handle 3 is forward, it indicates that the harvester is about to move forward. Therefore, the forward percentage is calculated based on the difference between the real-time voltage signal (i.e., the real-time first voltage analog signal when the first position is forward) and the median voltage signal (i.e., the stored first voltage analog signal when the first position is median). When the first position of the travel handle 3 is backward, it indicates that the harvester is about to move backward. The backward percentage is calculated based on the difference between the median voltage signal and the real-time voltage signal.

[0086] Furthermore, the travel pump 6 is used to output its own real-time current and travel pump displacement to the vehicle controller 5. The range of the real-time current of the travel pump 6 is determined by the dead zone current and the maximum current; the dead zone current represents the flow output of the travel pump 6 at the minimum opening, and the maximum current represents the flow output of the travel pump 6 at the maximum opening.

[0087] It should be noted that the walking pump 6 is controlled proportionally. The real-time current range of the walking pump 6 can be 200mA-640mA. At this time, the dead zone current is 200mA and the maximum current is 640mA. When the current is 200mA, the walking pump 6 is driven to output flow at the minimum opening. When the current is 600mA, the walking pump 6 is driven to output flow at the maximum opening.

[0088] Furthermore, when determining the travel pump control current output to the travel pump 6 based on the current percentage, the real-time current of the travel pump 6 and the travel pump displacement output by the travel pump 6 are obtained; based on the current percentage, the dead zone current of the travel pump 6, the maximum current, and the travel pump displacement, the real-time current value output to the travel pump 6 is calculated; and the travel pump control current output to the travel pump 6 is adjusted based on the real-time current value.

[0089] It should be noted that after calculating the current percentage, the corresponding travel pump control current is output based on the relationship between the real-time current of the travel pump 6 and the travel pump displacement. Specifically, the forward, neutral, and backward positions of the travel handle 3 are calibrated based on the first voltage-type analog signal of the travel handle 3. Then, the forward or backward current percentage of the harvester is calculated based on the real-time voltage signal and the neutral voltage signal of the handle. Based on the forward or backward current percentage, combined with the dead zone current and maximum current of the travel pump 6 and the travel pump displacement, the real-time output travel pump control current value is calculated.

[0090] Specifically, the logic for controlling the current output of the travel pump 6 is described as follows: When the travel handle 3 is pushed forward from the center position, the vehicle controller 5 outputs a gradually increasing forward drive current according to a set ramp, reaching its maximum when the travel handle 3 is pushed to the maximum. When the travel handle 3 returns to the center position from the forward position, the controller outputs a gradually decreasing forward drive current according to a set ramp, reaching its minimum when the travel handle 3 returns to the center position. When the travel handle 3 is pulled backward from the center position, the controller outputs a gradually increasing reverse drive current according to a set ramp, reaching its maximum when the travel handle 3 is pulled back to the maximum. When the handle returns to the center position from the reverse position, the controller outputs a gradually decreasing reverse drive current according to a set ramp, reaching its minimum when the handle returns to the center position. It should be noted that the aforementioned forward or reverse drive current is also the travel pump control current.

[0091] Therefore, when the vehicle controller 5 adjusts the control current of the travel pump 6, it controls the output control current of the travel pump 6 according to the position of the travel handle 3, thereby ensuring smooth acceleration and deceleration of the vehicle.

[0092] Furthermore, the travel motor 7 is used to output its own real-time current and travel motor displacement to the vehicle controller 5.

[0093] It should be noted that when outputting the travel motor control current for the travel motor 7, the travel motor control current output to the travel motor 7 is determined based on the relationship between the real-time current of the travel motor 7 and the displacement of the travel motor, as well as the gear switch signal.

[0094] In simple terms, combined with the gear switch 2, and based on the relationship curve between the displacement of the travel motor and the real-time current of the travel motor 7, the vehicle controller 5 outputs the corresponding travel motor control current for the travel motor 7, thereby controlling the motor displacement according to the travel motor control current. It can be added that the travel motor 7 is controlled by current. By controlling the travel motor control current to control the motor displacement, when the harvester requires greater driving force, the current is increased to ensure maximum driving force; when the harvester requires higher travel speed, the current is decreased to allow the motor to rotate at a faster speed, thus driving the vehicle at a faster speed.

[0095] Here, you can select a two-speed stepless adjustable walking motor 7. Under normal conditions, the walking motor displacement is set to 80mL per minute. When the harvester needs to travel at high speed, the motor displacement is adjusted to 63mL per minute. During the process of the walking motor displacement changing, the current adjustment is stepless, which can achieve a smooth transition of the motor displacement change and avoid strong jerking due to rapid changes.

[0096] Therefore, when the vehicle controller 5 adjusts the travel motor 7, it controls the motor displacement by controlling the travel motor control current, thereby achieving smooth adjustment of the travel motor displacement and smooth adjustment of the vehicle driving force and vehicle speed.

[0097] Furthermore, the vehicle controller 5 is also used to calculate the left and right turn percentages of the harvester based on the second voltage-type analog signal, and adjust the harvester's steering based on the left and right turn percentages. It should be noted that the steering handle 4 is the handle that controls the vehicle's steering. Different position information is sent to the vehicle controller 5 through different second voltage-type analog signals, and the vehicle controller 5 determines the left and right turn percentages of the handle based on the second voltage-type analog signal.

[0098] Furthermore, the system also includes a display screen. This display screen is connected to the vehicle controller 5CAN, meaning it communicates via the CAN bus. For example, ... Figure 2 As shown.

[0099] The vehicle controller 5 is used to send the harvester's travel speed to the display screen.

[0100] The display screen receives the vehicle's speed and displays a high-speed indicator when the speed is within a preset high-speed range and a low-speed indicator when the speed is within a preset low-speed range. Specifically, the display screen serves as the vehicle's information display terminal; it shows a high-speed indicator when traveling at high speed and a low-speed indicator when traveling at low speed.

[0101] Furthermore, the vehicle controller 5 is also used to output the travel motor control current of the travel motor 7 at a preset current change frequency. The current change frequency is determined by the acceleration set by the user.

[0102] Specifically, the speed of current change in the walking motor can be controlled according to user needs, based on a certain frequency of current change over time. The entire current change process can be set from 0.5s to 2.5s, meaning it changes once every 0.5s to 2.5s; this is the current change frequency. Users can set the acceleration according to their driving habits to determine the corresponding current change frequency, thus reasonably controlling the harvester's acceleration, which suits the driving habits of more people. It should be noted that the "ramp" mentioned in the above embodiment is also the current change frequency.

[0103] Therefore, the current change of the control walking motor 7 is adjusted according to the set slope, i.e., the current change frequency, to avoid sudden changes in the harvester speed.

[0104] In summary, the specific control logic of this application is as follows:

[0105] a. When the travel handle 3 is detected to be in the reverse position, regardless of whether it is in the operation mode or the transfer mode, and regardless of which gear switch 2 of the gearbox is in, the travel motor 7 is in the high displacement position by default, so that the harvester keeps traveling at a relatively low speed.

[0106] b. When the harvester is moving forward, in the working mode, regardless of which gear switch 2 of the gearbox is in, the travel motor 7 is in the high displacement position by default, so that the harvester keeps moving at a relatively low speed.

[0107] c. When the harvester is moving forward, in the transfer mode, when the gear switch 2 corresponding to the gearbox is in first gear or second gear, the travel motor 7 is in the high displacement position by default, so that the harvester keeps moving at a relatively low speed.

[0108] 4. When the harvester is moving forward, in the transfer mode, when the gear switch 2 corresponding to the gearbox is in the third gear and no steering signal is received from the steering handle 4, the travel motor 7 is controlled to be in the low displacement position, so that the harvester can travel at high speed and achieve the purpose of rapid transfer.

[0109] 5. When the harvester is moving forward, in walking mode, when the gear switch 2 corresponding to the gearbox is in the third gear, and at the same time receives a left or right turn signal from the steering handle 4, the walking motor 7 is controlled to change from the high displacement position to the low displacement position, so that the harvester can decelerate and avoid danger caused by high speed; when the turn signal ends, the walking motor 7 is controlled to change from the low displacement position to the high displacement position, so that the harvester can accelerate.

[0110] In summary, the output of the walking motor 7 is automatically selected according to the actual state of the harvester, and the changes in the travel speed of the harvester are flexibly controlled. Specifically, the displacement of the walking pump 6 and the walking motor is automatically adjusted according to the actual state, so as to ensure both the driving force and the travel speed of the harvester. By using a variable motor, for example, two-level multi-stage adjustment, and by using ramp control when the current is controlled, the comfort of speed control is improved.

[0111] In short, based on the gear position information, working mode, and steering signals of the gearbox gear switch 2, the motor displacement of the travel motor 7 is automatically adjusted so that the harvester can meet the high driving force in the working mode and the high-speed travel in the field transfer mode. The adjustment process is automatic and can achieve smooth adjustment.

[0112] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems and devices described above can be referred to the corresponding processes in the method embodiments, and will not be repeated here. In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed mutual coupling or direct coupling or communication connection can be through some communication interfaces; the indirect coupling or communication connection of devices or modules can be electrical, mechanical, or other forms.

[0113] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0114] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0115] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the deployment methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0116] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A harvester relocation efficiency improvement system, characterized in that, This includes a working mode selection switch, gear switch, travel handle, steering handle, vehicle controller, travel pump, and travel motor; The output terminals of the operating mode selection switch, the gear switch, the travel handle, and the steering handle are respectively connected to the input terminal of the vehicle controller via hard wires. The output terminals of the vehicle controller are respectively connected to the travel pump and the travel motor via hard wires. The operating mode selection switch, the gear switch, the travel handle, the steering handle, the travel pump, and the travel motor are respectively electrically connected to the vehicle controller via hard wires. The travel handle has a first position, and the steering handle has a second position. The first position is the neutral position, forward, or reverse.

2. The system according to claim 1, characterized in that, The working mode selection switch is used to send the corresponding working mode selection switch signal to the vehicle controller in response to the user's selection operation; wherein, the working mode includes operation mode and transfer mode; The gear position switch is used to send a gear position switch signal to the vehicle controller; The travel handle is used to output a corresponding first voltage-type analog signal to the vehicle controller according to the first position of the travel handle. The steering handle is used to output a corresponding second voltage-type analog signal to the vehicle controller according to the second position of the steering handle. The vehicle controller is used to output a travel pump control current for the travel pump and a travel motor control current for the travel motor based on the working mode selection switch signal, the gear switch signal, the first voltage-type analog signal and the second voltage-type analog signal. The walking pump is used to receive the walking pump control current; The walking motor is used to receive the walking motor control current.

3. The system according to claim 2, characterized in that, The system also includes a display screen; the display screen is connected to the vehicle controller via CAN. The vehicle controller is used to send the travel speed of the harvester to the display screen; The display screen is used to receive and display the driving speed.

4. The system according to claim 3, characterized in that, The travel pump is used to output its own travel pump real-time current and travel pump displacement to the vehicle controller; wherein, the range of the travel pump real-time current is determined by the dead zone current and the maximum current.

5. The system according to claim 2, characterized in that, The travel motor is used to output its real-time current and displacement to the vehicle controller.

6. The system according to claim 2, characterized in that, The vehicle controller is also used to output the travel motor control current of the travel motor at a preset current change frequency; wherein the current change frequency is determined by the acceleration set by the user.

7. The system according to claim 2, characterized in that, The vehicle controller outputs a travel pump control current for the travel pump: The first position of the walking handle is determined based on the first voltage-type analog signal; In response to the first position being the middle position, the output of the travel pump control current for the travel pump is 0, so as to keep the harvester stationary; In response to the first position being forward or backward, a current percentage for the control current of the walking pump is determined based on the first voltage-type analog signal; wherein, the current percentage includes the current forward percentage and the current backward percentage; The travel pump control current output to the travel pump is determined based on the current percentage.

8. The system according to claim 7, characterized in that, The vehicle controller determines the travel pump control current output to the travel pump based on the current percentage, including: Obtain the real-time current and displacement of the walking pump output; Based on the current percentage, the dead zone current of the travel pump, the maximum current, and the displacement of the travel pump, determine the real-time current value output to the travel pump. The travel pump control current output to the travel pump is adjusted based on the real-time current value.

9. The system according to claim 5, characterized in that, The vehicle controller outputs a travel motor control current for the travel motor, including: Based on the relationship between the real-time current of the walking motor and the displacement of the walking motor, as well as the gear switch signal, the walking motor control current output to the walking motor is determined.

10. The system according to claim 9, characterized in that, The vehicle controller is also used to adjust the steering of the harvester according to the second voltage-type analog signal.

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