Input system for work vehicle and work vehicle

Abstract

To easily input a pass code in an input screen of the pass code of a working vehicle.SOLUTION: An input system 90 for a work vehicle includes a display device 23, a collective switch apparatus 40 provided with a plurality of switches, and a vehicle body controller 60, and when an input operation to the display device 23 is acceptable, the vehicle body controller 60 accepts an operation to a switch SW of the collective switch apparatus 40 as an input operation of a numerical value assigned to the switch, and displays, on the display device 23, a collective switch image in which the assigned numerical value is arranged at a position corresponding to the switch SW.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to an input system for a work vehicle and a work vehicle. [Background technology]

[0002] When a work vehicle such as a wheel loader is started, a passcode entry screen is displayed on a display device located in the driver's cab. The operator enters the passcode by operating a dial-type jog dial located near the driver's seat. When entering the passcode, the operator turns the jog dial clockwise or counterclockwise to increase or decrease the number and enter the desired number.

[0003] Patent Document 1 discloses a jog dial arranged in the driver's cab of a work vehicle.

[0004] Patent Document 2 discloses a collective switch device in which a group of frequently used switches are arranged in a concentrated manner in the driver's cab of a wheel loader. [Prior art documents] [Non-patent literature]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2024-035410 [Patent Document 2] International Publication No. 2019 / 064387 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in order to input a passcode using the jog dial, the operator must rotate the jog dial, which makes inputting the passcode time-consuming.

[0007] The present disclosure has been made in consideration of the above, and aims to make it possible to easily input a passcode on a passcode input screen for a work vehicle. [Means for solving the problem]

[0008] According to the present disclosure, there is provided an input system for a work vehicle comprising a display device, a collective switch device provided with a plurality of switches, and a controller, wherein when the controller is capable of accepting input operations on the display device, it accepts operations on the switches of the collective switch device as input operations of numerical values ​​assigned to the switches, and displays on the display device a collective switch image in which the numerical values ​​assigned to the switches are positioned corresponding to the switches.

[0009] According to the present disclosure, there is provided a work vehicle including the above-described work vehicle input system and a work implement. [Effects of the Invention]

[0010] According to the present disclosure, a passcode can be easily entered on a passcode input screen for a work vehicle. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a right side view showing the overall configuration of a wheel loader, which is an example of a work vehicle according to an embodiment. [Figure 2] FIG. 2 is a schematic diagram showing an example of the interior of a driver's cab. [Figure 3] FIG. 3 is a plan view showing an example of a jog dial. [Figure 4] FIG. 4 is a plan view showing an example of a collective switch device. [Figure 5] FIG. 5 is a block diagram showing an example of the configuration of the aggregation switch device. [Figure 6] FIG. 6 is a block diagram showing an example of the configuration of a work vehicle including an input system for the work vehicle. [Figure 7] FIG. 7 is a block diagram showing an example of the configuration of the display controller. [Figure 8]FIG. 8 is a diagram showing an example of a passcode input screen. [Figure 9] FIG. 9 is a flowchart showing an example of the switch control process. [Figure 10] FIG. 10 is a block diagram illustrating a computer system according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings, taking a wheel loader as an example of a work vehicle.

[0013] [Embodiment] (Work vehicle) Fig. 1 is a right side view showing the overall configuration of a wheel loader, which is an example of a work vehicle according to an embodiment. In the following description, "front" and "rear" refer to the front and rear of a vehicle body 3. That is, the right side of Fig. 1 is the "front" and the left side is the "rear." In addition, "right," "left," "up," and "down" in the following description are based on the direction as seen from the driver's cab when looking forward.

[0014] As shown in Fig. 1, the wheel loader 1 comprises a work implement 2, a vehicle body 3, front wheels 4, and rear wheels 5. The wheel loader 1 is self-propelled by the rotational driving of the front wheels 4 and rear wheels 5. The wheel loader 1 uses the work implement 2 to perform a desired task.

[0015] The work implement 2 is a mechanism driven by hydraulic oil pressurized by a hydraulic pump (not shown). The work implement 2 is disposed in front of the vehicle body 3. The work implement 2 has a bucket 2a, a boom 2b, a boom cylinder 2c, and a bucket cylinder 2d. The bucket 2a is attached to the tip of the boom 2b. The bucket 2a is lifted as the boom 2b rises. The boom 2b is attached to the front of the front vehicle body 3a, which will be described later. The boom cylinder 2c drives the boom 2b with pressurized oil discharged from the hydraulic pump. The bucket cylinder 2d drives the bucket 2a with pressurized oil discharged from the hydraulic pump.

[0016] The vehicle body 3 comprises a front vehicle body 3a and a rear vehicle body 3b. The front vehicle body 3a and the rear vehicle body 3b are connected to each other so that they can swing left and right. The front vehicle body 3a is provided with a work implement 2 and front wheels 4. The rear vehicle body 3b is provided with rear wheels 5.

[0017] The rear body 3b includes a rear frame 6, a cab 7, a hydraulic oil tank 8, an engine compartment 9, and a cooling compartment 10. The rear frame 6 is a frame that forms the skeleton of the rear body 3b. The rear frame 6 supports the rear wheels 5, the cab 7, the hydraulic oil tank 8, the engine in the engine compartment 9, the cooling unit in the cooling compartment 10, etc.

[0018] A driver's cab is provided inside the cab 7. Various operating members and control panels are provided in the cab 7. Hydraulic oil for driving the work equipment 2 and the like is stored in the hydraulic oil tank 8. A hydraulic pump supplies the hydraulic oil in the hydraulic oil tank 8 to the work equipment 2 and the like. In the embodiment, the wheel loader 1 has the cab 7 that forms an internal driver's cab with the driver's seat surrounded by glass and pillars. The wheel loader 1 may also be equipped with a canopy-type cab without glass. A forward working light 51 is provided above the cab 7 or the like to brightly illuminate the road ahead during night work, etc.

[0019] Fig. 2 is a schematic diagram showing an example of the interior of a driver's cab. A driver's seat (not shown) is located inside the cab. A steering wheel 21 is located in front of the driver's seat, and a display device 23 is located in front of that. On the other hand, various operating devices including a collective switch device 40 for operating the work equipment are located to the right of the driver's seat.

[0020] The display device 23 is a monitor arranged so that the operator can check it. The display device 23 displays various images. For example, when the wheel loader 1 is started, the display device 23 displays a passcode input screen 200 (see FIG. 8).

[0021] (Jog dial) 3 is a plan view showing an example of the jog dial 30. The jog dial 30 accepts input operations for various screens displayed on the display device 23. The jog dial 30 is disposed, for example, on the right front side of the armrest 20 on the right side of the driver's seat. The jog dial 30 is provided with a button 31, a button 32, a button 33, a button 34, and a dial 35.

[0022] Buttons 31, 32, 33, and 34 can be pressed in the depth direction perpendicular to the plane of the paper in FIG. 3. Button 31 is located at the top left of dial 35. Button 31 is, for example, a return key. Button 32 is located at the top right of dial 35. Button 32 is, for example, a menu key. Button 33 is located at the bottom left of dial 35. Button 33 is, for example, a first shortcut key. Button 34 is located at the bottom right of dial 35. Button 34 is, for example, a second shortcut key.

[0023] The dial 35 is cylindrical. The dial 35 can be pressed along its central axis. When pressed, the dial 35 functions as, for example, a confirmation key. The dial 35 can be tilted in the longitudinal and lateral directions of the vehicle body around the central axis. When tilted up and down or left and right, the dial 35 functions as an operating lever for a work equipment lever. The dial 35 can be rotated clockwise and counterclockwise around a central axis perpendicular to the paper surface in FIG. 3. For example, by turning the dial 35 clockwise or counterclockwise by a predetermined angle A°, a desired number can be input by increasing or decreasing the number from "0" to "9" by one. For example, by tilting the dial 35 left and right around the central axis in FIG. 3, the input position in the passcode input area 201 shown in FIG. 8 can be moved left and right.

[0024] For example, if the corresponding number at the start of numeric input is "0," and the dial 35 is rotated clockwise by 5×A°, "5" is input, and if it is rotated counterclockwise by 2×A° from there, "3" is input. For example, if the corresponding number at the start of numeric input is "0," and the dial 35 is rotated counterclockwise by A°, "9" is input, and if it is rotated clockwise by A° from there, "0" is input.

[0025] (collective switch device) Fig. 4 is a plan view showing an example of the collective switch device 40. Fig. 5 is a block diagram showing an example of the configuration of the collective switch device 40. As shown in Fig. 4, the collective switch device 40 is disposed, for example, on a pillar 24, which is one of the components of the cab 7. As shown in Fig. 5, the collective switch device 40 has a control unit 41, a drive signal output unit 42, a network-side signal output unit 43, a network-side signal input unit 44, switches SW1 to SW12, and indicators L1 to L12.

[0026] The switches SW1 to SW12 and the indicators L1 to L12 will be described with reference to FIGS.

[0027] A plurality of switches are provided in the collective switch device 40. The collective switch device 40 is provided with switches SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, and SW12. When there is no particular need to distinguish between the switches SW1 to SW12, they will be described as switches SW.

[0028] In the example shown in Figure 4, two switches SW are arranged horizontally and six vertically. Switches SW1, SW2, SW3, SW4, SW5, and SW6 are aligned in order from top to bottom. Switches SW7, SW8, SW9, SW10, SW11, and SW12 are aligned in order from top to bottom. Switch SW7 is located to the right of switch SW1, switch SW8 is located to the right of switch SW2, switch SW9 is located to the right of switch SW3, switch SW10 is located to the right of switch SW4, switch SW11 is located to the right of switch SW5, and switch SW12 is located to the right of switch SW6.

[0029] The arrangement of the switches SW is not limited to the above. The switches SW may be arranged in a row of 12 in the vertical or horizontal direction. The switches SW may be arranged in a row of 4 in the horizontal direction or 3 in the vertical direction. Such an arrangement of the switches SW is determined according to the shape of the pillar 24 on which the switches SW are arranged.

[0030] Indicators L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, and L12 are provided on the outer edge of each of switches SW1 to SW12, in other words, along the outer edge that is the long side when the collective switch device 40 is viewed from the front. Indicators L1 to L12 are formed of LEDs. Indicators L1 to L12 indicate the operating status of the function assigned to the corresponding switch SW1 to SW12.

[0031] The indicator L1 includes indicators L1a, L1b, and L1c. The indicators L2 to L12 are similarly configured.

[0032] In the embodiment, the switches SW1 to SW12 are, for example, position-holding switches (alternate switches). The switches SW1 to SW12 may also be self-resetting switches (momentary switches). The switch operating unit SW may be, for example, a membrane switch. The switch operating unit SW may also be a toggle switch, a push-button switch, or a dial switch.

[0033] The collective switch device 40 may be a graphical user interface (GUI) using a touch panel instead of the mechanical switches SW1 to SW12.

[0034] The switch SW1 is a switch for switching the brightness of the display device 23.

[0035] The switch SW2 is a switch that turns on and off a front working light 51 (directly connected device 111) that is provided at the front part above the cab 7 and that illuminates the front working area of ​​the wheel loader 1.

[0036] Switch SW3 is unassigned.

[0037] The switch SW4 is a switch for turning on and off the function of the work machine 2 to perform automatic excavation.

[0038] The switch SW5 is a switch for turning on and off a function for automatically controlling the attitude of the boom 2b of the work implement 2.

[0039] The switch SW6 is a switch for turning on and off a function for automatically controlling the attitude of the bucket 2a of the work machine 2.

[0040] Switch SW7 is a switch that turns on and off the heating wire on the rear window of the driver's cab.

[0041] The switch SW8 is a switch for turning on and off a rear working light (directly connected device 113) (not shown) that is provided at the upper rear of the cab 7 and illuminates the rear working area of ​​the wheel loader 1.

[0042] The switch SW9 is a switch for turning on and off a rotating light (directly connected device 112) (not shown) that uses red or yellow light to notify the outside of a predetermined state.

[0043] The switch SW10 is a switch that turns on and off the traction control function.

[0044] The switch SW11 is a forward / reverse switching enable switch.

[0045] The switch SW12 is a switch that turns on and off the travel damper function.

[0046] In the embodiment, each switch SW provided on the collective switch device 40 has a function that can be turned on and off without screen transitions on the display device 23. The switches SW provided on the collective switch device 40 are not assigned functions that are urgently required when the operator is performing excavation and loading operations by operating the work implement levers for moving the work implement 2, or when the operator is performing traveling operations by operating the accelerator, brake, or steering 21 (not shown). The switches SW provided on the collective switch device 40 are arbitrarily operated when the wheel loader 1 is stopped, depending on the result of determining that the function is required at that time. Functions that do not require speed or urgency are assigned to the switches SW provided on the collective switch device 40. The 12 switches provided on the collective switch device 40 are merely an example, and are not limited to these.

[0047] Functions that require speed or urgency may be assigned as functions that are executed by pressing, touching, or other operations on the switches SW provided on the collective switch device 40. For example, in order to stop a work vehicle in an emergency, when any of the switches SW is operated, a drive signal may be output to a relay switch for cutting off a power supply line to a battery (not shown), and the relay switch may be driven to stop the work vehicle. Alternatively, when any of the switches SW is operated in an emergency to stop the work vehicle, a switch state signal may be transmitted to the vehicle body controller 60 via the in-vehicle network N, and the vehicle body controller 60 may stop fuel injection from a fuel injection device (not shown) to the engine, for example, to stop the work vehicle.

[0048] When the passcode input screen 200 is displayed, switches SW2 through SW6 and switches SW8 through SW12 function as numeric keys to allow input of numbers from "0" to "9." "1" is assigned to switch SW2. "2" is assigned to switch SW3. "3" is assigned to switch SW4. "4" is assigned to switch SW5. "5" is assigned to switch SW6. "6" is assigned to switch SW8. "7" is assigned to switch SW9. "8" is assigned to switch SW10. "9" is assigned to switch SW11. "0" is assigned to switch SW12. For example, by pressing switches SW2, SW3, and SW4 in this order on the passcode input screen 200, "123" is input.

[0049] The indicators L1 to L12 are LEDs, etc. The indicators L1 to L12 light up or blink the LEDs to display the current operating status of the functions corresponding to the operation of the switches SW1 to SW12.

[0050] The control unit 41, the drive signal output unit 42, the network side signal output unit 43, and the network side signal input unit 44 will be described with reference to FIG.

[0051] The control unit 41 is, for example, a microcomputer. A drive signal output unit 42, a network-side signal output unit 43, a network-side signal input unit 44, switches SW1 to SW12, and indicators L1 to L12 are connected to the control unit 41. The control unit 41 reads information stored or held in a memory (not shown), and lights or flashes indicators L1 to L12 in response to the operation of the switch operation unit SW.

[0052] The control unit 41 determines whether the switch operation unit SW has been operated or which switch of the switch operation unit SW has been operated, and outputs a command signal to the drive signal output unit 42 or the network side signal output unit 43.

[0053] When the control unit 41 determines based on the signal from the display controller 80 that the passcode input screen 200 is being displayed, it outputs a command signal to the network-side signal output unit 43 .

[0054] In the embodiment, when the passcode input screen 200 is displayed on the display device 23, the control unit 41 causes only indicator Lb to flash among the indicators L corresponding to the switches SW to which numerical values ​​are assigned. When the passcode input screen 200 is displayed on the display device 23, the control unit 41 causes indicators L2 to L6 and indicators L8 to L12 to flash. For example, when the passcode input screen 200 is displayed on the display device 23, the control unit 41 may turn on indicators L2 to L6 and indicators L8 to L12.

[0055] A signal line S that connects directly connected device 111, directly connected device 112, and directly connected device 113 via relay switch 101, relay switch 102, and relay switch 103 is connected to drive signal output unit .

[0056] The drive signal output unit 42 outputs drive signals that turn on and off the respective relay switches 101, 102, and 103 based on command signals received from the control unit 41. The drive signal output unit 42 generates drive signals corresponding to the operation of the switch operation unit SW for the directly connected devices 111, 112, and 113.

[0057] The drive signal is, for example, a voltage signal applied to the solenoids of the relay switch 101, the relay switch 102, and the relay switch 103. The drive signal may be a control signal that drives the relay switch 101, the relay switch 102, and the relay switch 103.

[0058] An in-vehicle network N is connected to the network-side signal output unit 43 and the network-side signal input unit 44 .

[0059] Based on the command signal received from the control unit 41, the network side signal output unit 43 outputs a switch state signal corresponding to an operation other than the operation of the switch operation unit SW for the directly connected device 111, the directly connected device 112, and the directly connected device 113 to the vehicle controller 60 and the display controller 80 via the in-vehicle network N.

[0060] When the passcode input screen 200 is displayed, the network-side signal output unit 43 outputs a switch state signal corresponding to an operation on a switch assigned as a numeric keypad, among the switches of the switch operation unit SW, to the display controller 80 via the in-vehicle network N. In other words, when the passcode input screen 200 is displayed, the network-side signal output unit 43 does not output a switch state signal corresponding to an operation other than an operation on the switch operation unit SW for the directly connected device 111, the directly connected device 112, and the directly connected device 113 to the vehicle body controller 60 via the in-vehicle network N. Furthermore, when the passcode input screen 200 is displayed, the network-side signal output unit 43 does not output an operation of the switch operation unit SW for the directly connected device 111, the directly connected device 112, and the directly connected device 113 to the drive signal output unit 42.

[0061] The network-side signal input unit 44 receives a signal input from the in-vehicle network N and inputs a command signal to the control unit 41. The command signal based on the signal input from the in-vehicle network N includes a control signal for driving and operating the directly connected device 111, the directly connected device 112, and the directly connected device 113, and a control signal for updating various setting information and the like in the collective switch device 40.

[0062] The collective switch device 40 configured in this manner is connected to the vehicle body controller 60 and the display controller (controller) 80 via the in-vehicle network N. The collective switch device 40 is connected to predetermined directly connected devices 111, 112, and 113 via relay switches 101, 102, and 103, respectively.

[0063] For example, the directly connected devices 111, 112, and 113 are a front work light 51 as a work light, a rear work light, a fog lamp, or a rotating light (not shown) as a warning light or auxiliary light. The rotating light and the fog lamp are installed, for example, above the cab 7. The rear work light is disposed, for example, at the rear end outside the cooling compartment 10.

[0064] (Vehicle controller) 6 is a block diagram showing an example of the configuration of a work vehicle including an input system for the work vehicle. The collective switch device 40, vehicle body controller 60, display controller 80, sensor group 71, and actuator group 72 are connected to an on-board network N such as a CAN.

[0065] The vehicle body controller 60 includes a numerical calculation device (processor) such as a CPU (Central Processing Unit). The vehicle body controller 60 is a controller that controls a driving unit in the vehicle body, for example, the tilt angle of a swash plate of a swash plate-type hydraulic pump driven by an engine. The sensor group 71 includes an engine rotation sensor, a vehicle speed sensor, etc.

[0066] (Display Controller) 7 is a block diagram showing an example of the configuration of a display controller 80. The display controller 80 includes a numerical calculation device (processor) such as a CPU.

[0067] When the display controller 80 is capable of accepting input operations on the display device 23, it accepts the operation on the switch SW of the collective switch device 40 as an input operation of the number assigned to the switch SW, and displays on the display device 23 a numeric keypad image 202, which is a collective switch image in which the numbers assigned to the switch SW are arranged in positions corresponding to the switch SW.

[0068] A case where an input operation to the display device 23 can be accepted is a case where the work vehicle is in an activated state. A case where an input operation to the display device 23 can be accepted is a case where the passcode input screen 200 is displayed on the display device 23. A case where an input operation to the display device 23 can be accepted is a case where the passcode can be input to the passcode input screen 200 displayed on the display device 23.

[0069] In the embodiment, the display controller 80 blinks the indicator L corresponding to the switch SW to which a numerical value is assigned when the passcode input screen 200 is displayed on the display device 23. When the passcode input screen 200 is displayed on the display device 23, the display controller 80 blinks the indicators L2 to L6 and the indicators L8 to L12.

[0070] In an embodiment, when the display controller 80 accepts an operation on the switch SW of the collective switch device 40 as an input operation of a numerical value assigned to the switch SW, it invalidates the acceptance of any operation on the switch SW other than an input operation of a numerical value assigned to the switch SW.

[0071] In the embodiment, when the passcode input screen 200 is displayed on the display device 23, the display controller 80 enables both the operation of inputting a number by operating the jog dial 30 and the operation of inputting a number by using the switch SW of the collective switch device 40.

[0072] The display controller 80 includes a display control unit 81 and an input operation receiving unit 82.

[0073] The display control unit 81 displays various operation screens including a passcode input screen 200 on the display device 23. When displaying the passcode input screen 200 on the display device 23, the display control unit 81 displays a collective switch image in which numerical values ​​assigned to positions corresponding to the switches SW are arranged.

[0074] 8 is a diagram showing an example of a passcode input screen 200. The passcode input screen 200 displays a passcode input area 201 and a numeric keypad image 202 indicating a numeric keypad assigned to the collective switch device 40.

[0075] The numeric keypad image 202 displays the assigned numbers at the positions of the switches SW to which numeric values ​​are assigned as numeric keys in the collective switch device 40. For example, the "5" assigned to the switch SW6 is displayed at the position corresponding to the bottom left switch SW6. For example, the "0" assigned to the switch SW12 is displayed at the position corresponding to the bottom right switch SW12.

[0076] The display control unit 81 displays a setting screen on the display device 23 for setting whether to enable or disable the function of using the collective switch device 40 as a numeric keypad. For example, when the numeric keypad image 202 is not displayed on the passcode input screen 200 of the display device 23, the function of using the collective switch device 40 as a numeric keypad is disabled. For example, when the numeric keypad image 202 is displayed on the passcode input screen 200 of the display device 23, input using the jog dial 30 may be set to be enabled or disabled.

[0077] The input operation receiving unit 82 receives input operations for various operation screens displayed on the display device 23. For example, the input operation receiving unit 82 receives a passcode input operation for the passcode input screen 200 using the jog dial 30. For example, the input operation receiving unit 82 receives a passcode input operation for the passcode input screen 200 using the collective switch device 40 as a numeric keypad.

[0078] When a passcode input screen is displayed on the display device 23, the input operation reception unit 82 receives an operation on the switch SW of the collective switch device 40 as an input operation of a numerical value assigned to the switch SW. When the input operation reception unit 82 detects from the switch state signal that switch SW2 has been operated, it receives the operation as an input operation of "1." When the input operation reception unit 82 detects from the switch state signal that switch SW3 has been operated, it receives the operation as an input operation of "2." When the input operation reception unit 82 detects from the switch state signal that switch SW4 has been operated, it receives the operation as an input operation of "3." When the input operation reception unit 82 detects from the switch state signal that switch SW5 has been operated, it receives the operation as an input operation of "4." When the input operation reception unit 82 detects from the switch state signal that switch SW6 has been operated, it receives the operation as an input operation of "5." When the input operation reception unit 82 detects from the switch state signal that switch SW8 has been operated, it receives the operation as an input operation of "6." When the input operation receiving unit 82 detects from the switch state signal that switch SW9 has been operated, it receives this as an input operation of "7." When the input operation receiving unit 82 detects from the switch state signal that switch SW10 has been operated, it receives this as an input operation of "8." When the input operation receiving unit 82 detects from the switch state signal that switch SW11 has been operated, it receives this as an input operation of "9." When the input operation receiving unit 82 detects from the switch state signal that switch SW12 has been operated, it receives this as an input operation of "0." For example, the operation of switch SW includes pressing or touching.

[0079] In the embodiment, when a number is input into a passcode input area 201 using the switch SW of the collective switch device 40, the input operation receiving unit 82 automatically moves the input position to the adjacent input area 201 to the right after the number is input into one input area 201.

[0080] In an embodiment, when the input operation receiving unit 82 receives an operation on the switch SW of the collective switch device 40 as an input operation of a numerical value assigned to the switch SW, it invalidates the reception of any operation on the switch SW other than an input operation of a numerical value assigned to the switch SW.

[0081] In the embodiment, when the passcode input screen 200 is displayed on the display device 23, the input operation receiving unit 82 receives an operation on the jog dial 30 as a numeric value input operation.

[0082] In the embodiment, when a numerical value is input into the passcode input section 201 using the dial 35 of the jog dial 30, the input operation receiving unit 82 moves the input position in the input section 201 left or right by tilting the dial 35 left or right. By moving the input position in the input section 201, the input operation receiving unit 82 determines the numerical value for the previous input position.

[0083] In the embodiment, the input operation receiving unit 82 causes the dial 35 to function as a confirmation key when pressed after numerical values ​​have been entered into all of the passcode input areas 201, in other words, after the passcode input has been completed.

[0084] In the embodiment, when a passcode input screen 200 is displayed on the display device 23 and a numerical value is assigned to the switch SW of the collective switch device 40, the input operation receiving unit 82 outputs an operation sound linked to the operation on the switch SW.

[0085] In the embodiment, the input operation receiving unit 82 can be set to enable or disable the acceptance of an operation on the switch SW of the collective switch device 40 as an input operation of a numerical value assigned to the switch SW. The input setting information is stored in a storage unit (not shown).

[0086] FIG. 10 is a block diagram showing a computer system according to an embodiment. The vehicle body controller 60 and the display controller 80 comprise a computer system 1000. The computer system 1000 includes a processor 1001 such as a CPU, a main memory 1002 including a nonvolatile memory such as a read-only memory (ROM) and a volatile memory such as a random access memory (RAM), a storage 1003, and an interface 1004 including an input / output circuit. The functions of the vehicle body controller 60 and the display controller 80 described above are stored as a program in the storage 1003. The processor 1001 reads the program from the storage 1003, loads it into the main memory 1002, and executes the above-described processing in accordance with the program. The program may be distributed to the computer system 1000 via a network.

[0087] The input system 90 of the work vehicle includes at least the display device 23, the collective switch device 40, and the display controller 80. The input system 90 of the work vehicle may further include a jog dial 30.

[0088] (Switch control process of collective switch device) Next, an example of the switch control process by the control unit 41 will be described with reference to the flowchart shown in Fig. 9. Fig. 9 is a flowchart showing an example of the switch control process.

[0089] The control unit 41 determines whether or not a passcode has been entered (step ST11). For example, if an operation for entering a passcode, such as an operation to start the wheel loader 1, is detected, the control unit 41 determines that a passcode has been entered. For example, if a passcode entry screen is displayed, the control unit 41 determines that a passcode has been entered. If the control unit 41 determines that a passcode has been entered (Yes in step ST11), the control unit 41 proceeds to step ST12. If the control unit 41 does not determine that a passcode has been entered (No in step ST11), the control unit 41 returns to start.

[0090] If it is determined that a passcode has been input (Yes in step ST11), the control unit 41 assigns a numeric keypad operation to the collective switch operation (step ST12).

[0091] The control unit 41 determines whether or not the passcode input is complete (step ST13). For example, when an operation to complete the passcode input is detected, the control unit 41 determines that the passcode input is complete. When the control unit 41 determines that the passcode input is complete (Yes in step ST13), the control unit 41 proceeds to step ST14. When the control unit 41 does not determine that the passcode input is complete (No in step ST13), the control unit 41 executes the process of step ST13 again.

[0092] When it is determined that the passcode input has been completed (Yes in step ST13), the control unit 41 cancels the ten-key assignment to the collective switch operation (step ST14).

[0093] (effect) As described above, in the embodiment, when passcode input screen 200 is displayed on display device 23, an operation on switch SW of collective switch device 40 is accepted as an input operation of a numerical value assigned to the switch SW, and a collective switch image in which the numerical values ​​assigned to the positions corresponding to the switch SW are arranged can be displayed on display device 23. According to the embodiment, collective switch device 40 can be used as a numeric keypad on passcode input screen 200, making it possible to easily input a passcode.

[0094] In the embodiment, when an input operation on the display device 23 can be accepted, an operation on the jog dial 30 can be accepted as an input operation of a numerical value.

[0095] In the embodiment, the indicator L can be made to blink when a numerical value is assigned to the switch SW of the collective switch device 40. According to the embodiment, it is possible to notify that the collective switch device 40 is being used as a numeric keypad.

[0096] In the embodiment, when a numerical value is assigned to the switch SW of the collective switch device 40, an operation sound can be output in response to an operation on the switch SW. According to the embodiment, it is possible to notify that the collective switch device 40 is being used as a numeric keypad.

[0097] In the embodiment, it is possible to set whether to enable or disable acceptance of an operation on the switch SW of the collective switch device 40 as an input operation of a numerical value assigned to the switch SW.

[0098] In the embodiment, when an operation on the switch SW of the collective switch device 40 is accepted as an input operation of a numerical value assigned to the switch SW, acceptance of operations on the switch SW other than the input operation of the numerical value assigned to the switch SW can be disabled. According to the embodiment, it is possible to reduce the occurrence of incorrect input on the passcode input screen 200 when the collective switch device 40 is used.

[0099] In the embodiment, the numerical values ​​assigned to the switches SW of the collective switch device 40 are numerical values ​​from 0 to 9. According to the embodiment, it is possible to easily input a passcode on the passcode input screen 200.

[0100] [Variations] In the above-described embodiments, the work vehicle is not limited to a wheel loader, but may be other work vehicles such as a bulldozer, a hydraulic excavator, or a dump truck. [Explanation of symbols]

[0101] 1...wheel loader, 2...work implement, 2a...bucket, 2b...boom, 2c...boom cylinder, 2d...bucket cylinder, 3...body, 3a...front body, 3b...rear body, 4...front wheel, 5...rear wheel, 6...rear frame, 7...cab, 8...hydraulic oil tank, 9...engine compartment, 10...cooling compartment, 12...ladder, 20...armrest, 21...steering, 23...display device, 24...pillar, 30...jog dial, 40...collective switch device, 41...control unit, 42...drive signal output unit, 43...network side signal output unit, 44...network side signal input unit, 60...body controller, 71...sensor group, 72...actuator group, 80...display controller, 90...input system, 101...relay switch, 102...relay switch, 103...relay switch 1 11...directly connected device, 112...directly connected device, 113...directly connected device, 200...passcode input screen, 201...passcode input area, 202...numeric keypad image, L1...indicator, L2...indicator, L3...indicator, L4...indicator, L5...indicator, L6...indicator, L7...indicator, L8...indicator, L9...indicator, L10...indicator, L11...indicator, L12...indicator, N...in-vehicle network, S...signal line, SW...switch operation unit, SW1...switch, SW2...switch, SW3...switch, SW4...switch, SW5...switch, SW6...switch, SW7...switch, SW8...switch, SW9...switch, SW10...switch, SW11...switch, SW12...switch.

Claims

1. a display device; a collective switch device provided with a plurality of switches; A controller; Equipped with The controller When an input operation on the display device is acceptable, an operation on the switch of the collective switch device is accepted as an input operation of a numerical value assigned to the switch, and a collective switch image in which the numerical value assigned to the switch is arranged at a position corresponding to the switch is displayed on the display device. Work vehicle input system.

2. Jog dial, Equipped with the controller accepts an operation on the jog dial as a numeric input operation when the controller is capable of accepting an input operation on the display device; The input system for a work vehicle according to claim 1 .

3. the collective switch device includes an indicator arranged corresponding to the switch; the collective switch device flashes the indicator when a numerical value is assigned to the switch of the collective switch device; The input system for a work vehicle according to claim 1 .

4. the controller outputs an operation sound linked to an operation of the switch when a numerical value is assigned to the switch of the collective switch device. The input system for a work vehicle according to claim 1 .

5. the controller is capable of setting whether to enable or disable acceptance of an operation on the switch of the collective switch device as an input operation of a numerical value assigned to the switch. The input system for a work vehicle according to claim 1 .

6. when the controller accepts an operation on the switch of the collective switch device as an input operation of a numerical value assigned to the switch, the controller invalidates acceptance of any operation on the switch other than an input operation of a numerical value assigned to the switch. The input system for a work vehicle according to claim 1 .

7. The numerical values ​​assigned to the switches of the collective switch device are numerical values ​​from 0 to 9. The input system for a work vehicle according to claim 1 .

8. The case where an input operation on the display device is acceptable means a case where a passcode can be input on a passcode input screen displayed on the display device. The input system for a work vehicle according to claim 1 .

9. The case where an input operation to the display device can be accepted means that the work vehicle is in an activated state. The input system for a work vehicle according to claim 1 .

10. An input system for a work vehicle according to any one of claims 1 to 9; A work machine, A work vehicle equipped with:

Images