Vehicle system, work vehicle and program

Abstract

To provide a vehicle system capable of easily setting a plurality of engine speeds when operating an operation section.SOLUTION: A vehicle system includes a work vehicle and a terminal device enabling communication with the work vehicle. The work vehicle includes: an engine; an operation section that operates at an operating speed corresponding to engine speed; and a processing device that controls the operation section. The terminal device includes a setting input section to which set data is input. The processing device calculates a speed group comprising speeds comprising three or more stages that are set at an interval of predetermined rate, and selects the engine speed from the speed group.SELECTED DRAWING: Figure 11

Description

[Technical Field]

[0001] The present specification relates to a vehicle system, a work vehicle, and a program. [Background technology]

[0002] Conventionally, for example, a work vehicle is equipped with an engine, an operating unit that operates at an operating speed corresponding to the engine rotation speed, and a processing device that controls the operating unit (for example, Patent Document 1). However, there is a demand for easily setting multiple engine rotation speeds when operating the operating unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-103543 Summary of the Invention [Problem to be solved by the invention]

[0004] Therefore, an object of the present invention is to provide a vehicle system that can easily set the rotation speeds of multiple engines when operating operating units. [Means for solving the problem]

[0005] The vehicle system is A work vehicle, a terminal device capable of communicating with the work vehicle, The work vehicle is The engine and an operating unit that operates at an operating speed corresponding to the number of revolutions of the engine; a processing device that controls the operation unit, the terminal device includes a setting input unit to which setting data for setting a maximum rotation speed and a minimum rotation speed of the engine is input, The processing device includes: three or more level data are stored in advance; calculating a group of rotation speeds consisting of three or more rotation speed levels based on the setting data and the level number data; The engine speed is selected from the group of speeds.

[0006] In addition, the vehicle system A work vehicle, a terminal device capable of communicating with the work vehicle, The work vehicle is The engine and an operating unit that operates at an operating speed corresponding to the number of revolutions of the engine; a processing device that controls the operation unit, the terminal device includes a setting input unit to which setting data for setting either a maximum rotation speed or a minimum rotation speed of the engine is input, The processing device includes: three or more level data are stored in advance; calculating a group of rotation speeds consisting of three or more rotation speed levels based on the setting data and the level number data; selecting a rotation speed of the engine from the group of rotation speeds; The rotational speeds between the rotational speeds in the group of rotational speeds are rotational speeds that have a preset ratio with respect to the rotational speed of the setting data.

[0007] In addition, the vehicle system A work vehicle, a terminal device capable of communicating with the work vehicle, The work vehicle is The engine and an operating unit that operates at an operating speed corresponding to the number of revolutions of the engine; a processing device that controls the operation unit, the terminal device includes a setting input unit into which setting data for setting three or more levels is input, The processing device includes: calculating a group of rotation speeds consisting of three or more stages of rotation speeds based on the maximum rotation speed data, the minimum rotation speed data, and the setting data; The engine speed is selected from the group of speeds. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram of a vehicle system according to an embodiment; [Figure 2] FIG. 2 is a control block diagram of the processing apparatus according to the embodiment; [Figure 3] FIG. 1 is an overall view of a work vehicle according to the embodiment; [Figure 4] 1 is a flow chart of a work vehicle according to the embodiment (a: unloading work flow chart, b: loading work flow chart). [Figure 5] FIG. 10 is an explanatory diagram of a loading and unloading operation of the work vehicle according to the embodiment; [Figure 6] FIG. 10 is an explanatory diagram of a loading and unloading operation of the work vehicle according to the embodiment; [Figure 7] FIG. 10 is an explanatory diagram of a loading and unloading operation of the work vehicle according to the embodiment; [Figure 8] FIG. 2 is a control block diagram of the work vehicle according to the embodiment; [Figure 9] FIG. 2 is a control block diagram of a terminal device according to the embodiment; [Figure 10] FIG. 10 is a diagram showing a first display screen of the terminal device according to the embodiment. [Figure 11] FIG. 10 is an explanatory diagram of a first calculation and setting method for the rotation speed of the engine according to the embodiment; [Figure 12] FIG. 10 is a diagram showing a second display screen of the terminal device according to the embodiment. [Figure 13] FIG. 10 is an explanatory diagram of a second method for calculating and setting the rotation speed of the engine according to the embodiment; [Figure 14] FIG. 10 is a diagram showing a third display screen of the terminal device according to the embodiment. [Figure 15] FIG. 10 is an explanatory diagram of a third method for calculating and setting the rotation speed of the engine according to the embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0009] In each drawing, the dimensions of the components may be enlarged or reduced relative to the actual dimensions, for example, to facilitate understanding, and the dimensional ratios between the drawings may not be consistent. Note that in each drawing, for example, to facilitate understanding, some of the components may be omitted.

[0010] Terms including ordinal numbers such as "first" and "second" are used to describe various components, but these terms are used only to distinguish one component from another, and the components are not particularly limited by these terms. The number of components including ordinal numbers is not particularly limited, and may be, for example, one. Furthermore, the ordinal numbers used in the following specification and drawings may differ from the ordinal numbers described in the claims.

[0011] An embodiment of the vehicle system, work vehicle, and program will be described below with reference to Figures 1 to 15. Note that the following embodiment is provided as an example to aid in understanding the configuration of the vehicle system, work vehicle, and program, and does not limit the configuration of the vehicle system, work vehicle, and program.

[0012] 1, a vehicle system 100 according to this embodiment includes a work vehicle 1 and a terminal device 101 capable of communicating with the work vehicle 1. The work vehicle 1 includes a processing device (also referred to as a "vehicle processing device") 2, and the terminal device 101 includes a processing device (also referred to as a "terminal processing device") 102, and the processing devices 2, 102 can communicate with each other via communication means X1.

[0013] The communication means X1 is not particularly limited. For example, the communication means X1 may be a wireless communication means such as the Internet, Wi-Fi, Bluetooth (registered trademark), or a wireless LAN. Furthermore, for example, the communication means X1 may be a wired communication means such as a wired LAN or a communication cable.

[0014] 2, each processing device 2, 102 is a computer including, for example, a processor 3, a memory 4, and various interfaces 5. For example, the memory 4 stores a program 4a and a database 4b, the processor 3 executes the program 4a, and the various parts of the processing device 2, 102 are realized by the software and hardware working together.

[0015] The processor 3 is configured to be able to execute computer-executable instructions. The processor 3 is not particularly limited, and may be, for example, a central processing unit (CPU), a microprocessor (MPU), or the like.

[0016] The memory 4 is configured to be able to store computer data. The memory 4 includes not only a memory that temporarily stores data when the processor 3 executes processing, but also a storage that permanently stores data. The memory 4 is not particularly limited, and may be, for example, a semiconductor memory (various ROMs, various RAMs, etc.), an optical disk (CD, DVD, etc.), a magnetic disk (hard disk, MO, etc.), a magnetic tape, a storage medium using a flash memory (SD card, USB memory, etc.), etc.

[0017] As shown in FIG. 3, the work vehicle 1 may include, for example, a vehicle body 6 and a working device 1a connected to the vehicle body 6. The working device 1a may include, for example, as in this embodiment, a load receiving device 7 and a loading device 8 connected to the vehicle body 6 and configured to load and unload the load receiving device 7 between an on-vehicle position where it is placed on the vehicle body 6 (see FIG. 5(a)) and a final contact position where it is placed on the ground (see FIG. 7(b)). The vehicle body 6 may include, for example, as in this embodiment, a driver's cab 6a arranged at the front, a vehicle body frame 6b arranged at the rear, and a plurality of wheels 6c.

[0018] In the following description and drawings, the first direction D1 is also referred to as the front-to-rear direction (also referred to as the "first lateral direction") D1, the second direction D2 is also referred to as the left-to-right direction (also referred to as the "second lateral direction") D2, and the third direction D3 is also referred to as the up-down direction D3. In other words, each of the directions D1 to D3 is the direction seen from the perspective of a person (driver) sitting in the driver's seat in the driver's cab 6a of the work vehicle 1 when the work vehicle 1 is traveling.

[0019] Of the front-to-rear direction D1, the direction of the arrow in the figure is the front direction, and the direction opposite to the arrow direction in the figure is the rear direction. Furthermore, of the left-to-right direction D2, the direction of the arrow in the figure is the left direction, and the direction opposite to the arrow direction in the figure is the right direction. Furthermore, of the up-down direction D3, the direction of the arrow in the figure is the up direction, and the direction opposite to the arrow direction in the figure is the down direction.

[0020] The work vehicle 1 may, for example, as in this embodiment, be equipped with an engine 9 and a drive switching unit (also referred to as a "power take-off (PTO)") 10 that can switch the destination of the drive power of the engine 9. The drive switching unit 10 may be switchable, for example, between a first state (travelable state) in which the drive power of the engine 9 is transmitted to the wheels 6c, and a second state (workable state) in which the drive power of the engine 9 is transmitted to the cargo handling device 8.

[0021] The cargo receiving device 7 may, for example, as in this embodiment, include a body 7a on which another vehicle can be placed, and a tailgate 7b rotatably connected to the rear end of the body 7a. As a result, in this embodiment, the object to be transported by the work vehicle 1 is a car, and the work vehicle 1 is a car transport vehicle.

[0022] The loading device 8 may, for example, as in this embodiment, include an equipment frame 12 fixed to the vehicle body frame 6b, a lift frame 11 rotatably connected to the equipment frame 12 and thereby rotatable relative to the vehicle body 6, and a lift arm 13 rotatably connected to the equipment frame 12 and the lift frame 11, respectively.

[0023] The cargo handling device 8 may include, for example, a cylinder 14 connecting the device frame 12 and the lift arm 13, as in this embodiment. As a result, the cargo receiving device 7 and the lift frame 11 move relative to the vehicle body 6 as the cylinder 14 extends and retracts.

[0024] Although not particularly limited, for example, as in this embodiment, the cylinder 14 may be a hydraulic cylinder, and the cargo handling device 8 may include a hydraulic pump 8a and valves 8b (see FIG. 8), etc. As a result, the hydraulic pump 8a is operated by driving the engine 9, and the cylinder 14 expands and contracts as the multiple valves 8b are opened and closed.

[0025] Furthermore, the cargo handling device 8 may be provided with a slide mechanism 15 that slidably connects the cargo receiving device 7 to the lift frame 11, as in this embodiment. This allows the cargo receiving device 7 to slide on the lift frame 11, and the cargo receiving device 7 can be positioned at an inclined grounding position (see Figures 6(b) and 7(a)) where the rear end of the device 7 is in contact with the ground.

[0026] The slide mechanism 15 may, for example, as in this embodiment, include a circular chain 15a, a portion of which is fixed to the goods receiving device 7 and supported by the lift frame 11, and a motor 15b that rotates and moves the chain 15a. However, the slide mechanism 15 is not limited to this configuration, and may, for example, be a cylinder that connects the goods receiving device 7 and the lift frame 11.

[0027] Although not particularly limited, for example, as in this embodiment, the motor 15b may be a hydraulic motor, and the cargo handling device 8 may include a hydraulic pump 8a and valves 8b (see FIG. 8), etc. As a result, the hydraulic pump 8a is operated by the drive of the engine 9, and the motor 15b is rotated by opening and closing the multiple valves 8b.

[0028] Furthermore, the work vehicle 1 may be equipped with, for example, a vehicle body tilt angle detection unit 16 that detects the tilt angle θ1 of the vehicle body 6 with respect to the horizontal (see the dashed line in FIG. 3), as in this embodiment, and a lift tilt angle detection unit 17 that detects the tilt angle of the lift frame 11 with respect to the horizontal. Each tilt angle detection unit 16, 17 is not particularly limited, and may be, for example, a sensor that can detect the tilt angle of each unit 6, 11 with respect to the horizontal.

[0029] The lift tilt angle detection unit 17 may indirectly detect the tilt angle of the lift frame 11 by detecting the tilt angle of the lift arm 13, which has a correlation, as in this embodiment. However, the lift tilt angle detection unit 17 is not limited to such a configuration, and may, for example, directly detect the tilt angle of the lift frame 11.

[0030] Here, the operation of the cargo handling device 8, specifically the loading and unloading operation, will be described. First, the unloading operation of the loading and unloading operation will be described with reference to FIG. 4(a) and FIGS.

[0031] As shown in FIG. 5(a), when the cargo handling device 8 is in the initial state, the cargo receiving device 7 is located in an on-vehicle position where it is placed on the vehicle body 6. Then, in the first rear sliding step, the sliding mechanism 15 causes the cargo receiving device 7 to slide rearward (toward the right in each figure). As a result, as shown in FIG. 5(b), the cargo receiving device 7 is located in the first unloading position. Note that in the first rear sliding step, the cylinder 14 (not shown in FIG. 5) does not extend or retract.

[0032] Then, in the first unloading lifting step, the cylinder 14 extends, causing the lift frame 11 to rotate backward (clockwise in each figure). As a result, as shown in Figure 6(a), the load receiving device 7 is located at the second unloading position. Note that in the first unloading lifting step, the slide mechanism 15 does not operate.

[0033] Then, in the second rear sliding step, the goods receiving device 7 slides rearward by the slide mechanism 15. As a result, as shown in Fig. 6(b), the rear end of the goods receiving device 7 touches the ground, and the goods receiving device 7 is positioned at the first inclined grounding position. Note that in the second rear sliding step, the cylinder 14 does not extend or retract.

[0034] When the goods receiving device 7 is located at the first inclined ground position, the inclination angle of the goods receiving device 7 relative to the horizontal is the same as the inclination angle of the lift frame 11 relative to the horizontal. Specifically, in the second rear sliding step, the inclination angle of the goods receiving device 7 relative to the horizontal is the same as the inclination angle of the lift frame 11 relative to the horizontal.

[0035] Then, in the third rear sliding step, the goods receiving device 7 slides rearward by the slide mechanism 15. As a result, the goods receiving device 7 is positioned at the second inclined ground contact position, as shown in Fig. 7(a). Note that in the third rear sliding step, the cylinder 14 does not extend or retract.

[0036] In the third rear sliding step, the goods receiving device 7 slides rearward while its rear end slides on the ground, so that the goods receiving device 7 gradually moves away from the lift frame 11 from the rear side. As a result, in the third rear sliding step, the inclination angle of the goods receiving device 7 relative to the horizontal gradually becomes smaller than the inclination angle of the lift frame 11 relative to the horizontal. Therefore, when the goods receiving device 7 is located in the second inclined ground contact position, the inclination angle of the goods receiving device 7 relative to the horizontal is smaller than the inclination angle of the lift frame 11 relative to the horizontal.

[0037] Then, in the second unloading lifting step, the cylinder 14 extends, causing the lift frame 11 to rotate backward. As a result, the front end of the load receiving device 7 moves downward, and as shown in FIG. 7(b), it moves to the final ground contact position. When the load receiving device 7 is positioned at the final ground contact position, the front end of the load receiving device 7 is supported on the ground via the rear end of the lift frame 11, so the entire load receiving device 7 is supported on the ground. In this way, when the load receiving device 7 is positioned at the final ground contact position, other vehicles loaded on the load receiving device 7 can be unloaded from the load receiving device 7.

[0038] When the cargo receiving device 7 is located at a position between the first inclined ground position and the second inclined ground position, the rear end of the cargo receiving device 7 is in contact with the ground, so other vehicles on the cargo receiving device 7 can also be unloaded from the cargo receiving device 7. Therefore, the position of the cargo receiving device 7 when the unloading operation is completed may be a position between the first inclined ground position and the second inclined ground position.

[0039] In the second unloading lift process, the slide mechanism 15 does not operate. Also, even if command data is input to the vehicle input unit 22 (unloading input unit 22b) described later when the load receiving device 7 is positioned at the final grounding position, the vehicle processing device 2 does not extend the cylinder 14.

[0040] Next, the loading operation among the loading and unloading operations will be described with reference to FIG. 4(b) and FIGS. 5 to 7. FIG.

[0041] As shown in FIG. 7(b), when the cargo handling device 8 is in the initial state, the cargo receiving device 7 is located at the final ground contact position. This allows another vehicle to be loaded onto the cargo receiving device 7. Then, in the first loading lift process, the cylinder 14 contracts, causing the lift frame 11 to rotate forward (counterclockwise in each figure). As a result, as shown in FIG. 7(a), the cargo receiving device 7 touches the ground only at its rear end, and is located at the second inclined ground contact position. Note that the slide mechanism 15 does not operate in the first loading lift process.

[0042] Then, in the first forward sliding step, the sliding mechanism 15 slides the goods receiving device 7 forward (to the left in each figure). As a result, as shown in Figure 6(b), the goods receiving device 7 is positioned at the first inclined ground contact position. Note that in the first forward sliding step, the cylinder 14 does not extend or retract.

[0043] When the goods receiving device 7 is located at the second inclined ground position, the inclination angle of the goods receiving device 7 relative to the horizontal is smaller than the inclination angle of the lift frame 11 relative to the horizontal. In the first forward sliding process, the goods receiving device 7 slides forward while sliding its rear end on the ground, so that the goods receiving device 7 gradually approaches the lift frame 11 from the rear side.

[0044] As a result, in the first rear sliding step, the inclination angle of the goods receiving device 7 relative to the horizontal gradually increases. Therefore, when the goods receiving device 7 is located at the first inclined grounding position, the inclination angle of the goods receiving device 7 relative to the horizontal becomes the same as the inclination angle of the lift frame 11 relative to the horizontal.

[0045] When the cargo receiving device 7 is at a position between the first inclined ground contact position and the second inclined ground contact position, the rear end of the cargo receiving device 7 is in contact with the ground, so that other vehicles can be loaded onto the cargo receiving device 7. As a result, in the initial state of the cargo handling device 8 during loading work, the cargo receiving device 7 may be at a position between the first inclined ground contact position and the second inclined ground contact position.

[0046] Then, in the second forward sliding step, the goods receiving device 7 slides forward by the slide mechanism 15. As a result, the goods receiving device 7 is positioned at the first loading position, as shown in Fig. 6(a). Note that in the second forward sliding step, the cylinder 14 does not extend or retract.

[0047] Then, in the second loading lifting step, the cylinder 14 contracts, causing the lift frame 11 to rotate forward. As a result, the goods receiving device 7 is located at the second loading position, as shown in Fig. 5(b). Note that in the second loading lifting step, the slide mechanism 15 does not operate.

[0048] Then, in the third forward sliding step, the goods receiving device 7 slides forward by the slide mechanism 15. As a result, as shown in Fig. 5(a), the goods receiving device 7 is placed on the vehicle body 6, and the goods receiving device 7 is positioned at the on-vehicle position. Note that in the third forward sliding step, the cylinder 14 does not extend or retract.

[0049] Furthermore, as shown in FIG. 8, the work vehicle 1 may be equipped with, for example, a cargo receiving movement detection unit 18 that detects the amount of movement (slide amount) of the cargo receiving device 7, a first cargo receiving position detection unit 19 that detects the cargo receiving device 7 located at a first reference position, a second cargo receiving position detection unit 20 that detects the cargo receiving device 7 located at a second reference position, a third cargo receiving position detection unit 21 that detects the cargo receiving device 7 located at a third reference position, an input unit (also referred to as a "vehicle input unit") 22 into which various data are input, and an output unit (also referred to as a "vehicle output unit") 23 that outputs various data.

[0050] The goods movement detection unit 18 is not particularly limited, but may be, for example, a sensor (for example, an encoder) that detects the amount of rotation of the motor 15b or the amount of rotation of the sprocket wound around the chain 15a. The goods movement detection unit 18 may also be, for example, a sensor (for example, a proximity sensor or a photoelectric sensor) that detects the teeth on the outer periphery of the sprocket wound around the chain 15a.

[0051] The first reference position detected by the first goods receiving position detection unit 19 may be, for example, the front end position of the goods receiving device 7 shown in Fig. 5(a). The second reference position detected by the second goods receiving position detection unit 20 may be, for example, the middle position of the goods receiving device 7 shown in Fig. 5(b). The third reference position detected by the third goods receiving position detection unit 21 may be, for example, the rear end position of the goods receiving device 7 shown in Fig. 7(a). Although not particularly limited, each goods receiving position detection unit 19-21 may be, for example, various types of sensors (for example, proximity sensors, contact sensors, photoelectric sensors, etc.).

[0052] In this embodiment, the work vehicle 1 is equipped with both the goods receiving movement detection unit 18 and the first to third goods receiving position detection units 19 to 21, but is not limited to this configuration. The work vehicle 1 may be configured to be equipped with only the goods receiving movement detection unit 18, for example, or may be configured to be equipped with only the first to third goods receiving position detection units 19 to 21, for example.

[0053] The vehicle input unit 22 may include, for example, a loading input unit 22a to which instruction data for executing a loading operation is input, and an unloading input unit 22b to which instruction data for executing an unloading operation is input, as in the present embodiment. The vehicle input unit 22 also includes a speed change input unit 22e to which instruction data for changing the rotation speed of the engine 9 is input.

[0054] The speed change input unit 22e may include, for example, as in this embodiment, a high-speed input unit 22c to which instruction data for increasing the speed of rotation of the engine 9 (specifically, the operation of the cargo handling device 8) is input, and a low-speed input unit 22d to which instruction data for decreasing the speed of rotation of the engine 9 is input. Although not particularly limited, each of the input units 22a to 22e may be, for example, various switches, touch panels, etc.

[0055] The vehicle output unit 23 may include, for example, as in this embodiment, a display unit (e.g., an electronic bulletin board, a signal light) 23a that displays data, a sound output unit (e.g., a buzzer, a speaker) 23b that outputs the data as sound, and an external output unit 23c that outputs data to the outside (e.g., a terminal device 101, etc.).

[0056] The work vehicle 1 may be equipped with a rotation speed changer 24 that changes the rotation speed of the engine 9, as in the present embodiment, for example. The rotation speed changer 24 is not particularly limited, but may be, for example, an electronic governor. This makes it possible to control the rotation speed of the engine 9, for example, by controlling a signal (for example, voltage) to the electronic governor. Note that when the rotation speed of the engine 9 is controlled by the electronic governor, an interlock is configured so that the rotation speed of the engine 9 cannot be controlled by the accelerator inside the cab 6a.

[0057] The vehicle processing device 2 may include, for example, an acquisition unit 2a that acquires each piece of data from each unit 16 to 22, 101, a storage unit 2b that stores each piece of data, a calculation unit 2c that calculates each piece of data, and a control unit 2d that controls each unit 8, 23, 24. For example, the calculation unit 2c and the control unit 2d may be configured as a processor 3 (see FIG. 2), and the acquisition unit 2a and the storage unit 2b may be configured as a memory 4 (see FIG. 2).

[0058] As a result, the processor 3 executes the program 4a (see FIG. 2) stored in the memory 4, and the software and hardware work together to realize the units 2a to 2d of the vehicle processing device 2. Note that the vehicle processing device 2 may be configured, for example, by a software circuit, or may be configured, for example, by a hardware circuit, or may be configured, for example, by a combination of a software circuit and a hardware circuit.

[0059] The vehicle processing device 2 may be configured as a single device, or may be configured as multiple devices that can communicate with each other. Specifically, the units 2a to 2d of the vehicle processing device 2 may be provided in a single device, or may be distributed across multiple devices that can communicate with each other.

[0060] The vehicle processing device 2 calculates the tilt angle θ2 (lift frame ground angle θ2; see FIG. 3) of the lift frame 11 relative to the vehicle body 6 based on the angle detected by the vehicle body tilt angle detection unit 16 and the angle detected by the lift tilt angle detection unit 17. Since the lift frame ground angle θ2 correlates with the position of the goods receiving device 7, for example, in each lift process of the loading / unloading work, the vehicle processing device 2 may control the cylinder 14 (specifically, the valve 8b) based on the calculated lift frame ground angle θ2.

[0061] Furthermore, the vehicle processing device 2 may calculate the position of the goods receiving device 7 relative to the lift frame 11, for example, based on the detection of the goods receiving movement detection unit 18. Then, for example, in each sliding process of the loading / unloading work, the vehicle processing device 2 may control the motor 15b based on the calculated position of the goods receiving device 7.

[0062] In this embodiment, the hydraulic pump 8a is operated by driving the engine 9, and therefore the rotation speed of the hydraulic pump 8a is controlled by the rotation speed of the engine 9. As a result, the operating speed of the cylinder 14 changes depending on the hydraulic pressure (the rotation speed of the hydraulic pump 8a), and therefore the operating speed of the cylinder 14 is controlled by controlling the rotation speed of the engine 9.

[0063] In this embodiment, the hydraulic pump 8a is operated by the engine 9, and the motor 15b is operated by the hydraulic pump 8a. The rotation speed of the motor 15b is controlled by the rotation speed of the hydraulic pump 8a, specifically, the rotation speed of the engine 9. As a result, the slide movement speed of the goods receiving device 7 is controlled by controlling the rotation speed of the engine 9.

[0064] In this manner, in this embodiment, the cylinder 14 and the motor 15b are also referred to as the operating unit 1b because they operate at an operating speed (extension / contraction speed, rotation speed) according to the rotation speed of the engine 9. The vehicle processing device 2 controls the rotation speed change unit 24 to control the rotation speed of the engine 9, thereby controlling the operating speed (extension / contraction speed, rotation speed) of the operating unit 1b (cylinder 14 and motor 15b).

[0065] 9, the terminal device 101 may include, for example, an input unit (also referred to as a "terminal input unit") 103 to which data is input, and an output unit (also referred to as a "terminal output unit") 104 to which data is output. Although not particularly limited, the terminal device 101 may be, for example, a portable mobile terminal, a personal computer, a tablet computer, or the like.

[0066] The terminal input unit 103 includes a setting input unit 105 that can input data related to the maximum and minimum rotation speeds and the number of stages of the engine 9. The terminal output unit 104 may include, for example, as in this embodiment, a display unit 104a (e.g., an electronic bulletin board, indicator light) that displays data, a sound output unit 104b (e.g., a buzzer, speaker) that outputs the data as sound, and an external output unit 104c that outputs data to the outside (e.g., the work vehicle 1, etc.).

[0067] The terminal processing device 102 may include, for example, an acquisition unit 102a that acquires each piece of data from each unit 1, 103, a storage unit 102b that stores each piece of data, a calculation unit 102c that calculates each piece of data, and a control unit 102d that controls each unit 104. For example, the calculation unit 102c and the control unit 102d may be configured as a processor 3 (see FIG. 2), and the acquisition unit 102a and the storage unit 102b may be configured as a memory 4 (see FIG. 2).

[0068] As a result, the processor 3 executes the program 4a (see FIG. 2) stored in the memory 4, and the software and hardware work together to realize the units 102a to 102d of the terminal processing device 102. Note that the terminal processing device 102 may be configured, for example, by a software circuit, or may be configured, for example, by a hardware circuit, or may be configured, for example, by a combination of a software circuit and a hardware circuit.

[0069] Furthermore, the terminal processing device 102 may be configured as, for example, a single device, or may be configured as, for example, a plurality of devices that can communicate with each other. Specifically, the units 102a to 102d of the terminal processing device 102 may be provided in, for example, a single device, or may be provided as, for example, a plurality of devices that can communicate with each other.

[0070] Here, a description will be given of a calculation and setting method in the vehicle system 100 according to this embodiment. Note that the following content is provided as an example to help understand the calculation and setting method in the vehicle system 100, and is not intended to limit the calculation and setting method in the vehicle system 100.

[0071] In this embodiment, vehicle system 100 is equipped with first to third calculation and setting methods. However, the configuration is not limited to this, and vehicle system 100 may be configured to have, for example, only one of the first to third calculation and setting methods, or may be configured to have only two of the first to third calculation and setting methods, or may be configured to have an additional calculation and setting method different from the first to third calculation and setting methods.

[0072] <First calculation setting method> First, the first calculation and setting method will be described with reference to FIGS.

[0073] The first calculation / setting method is a method in which setting data for the "maximum number of rotations" and the "minimum number of rotations" are input to the setting input unit 105 of the terminal input unit 103. First, the setting data for the "maximum number of rotations" and the "minimum number of rotations" are input to the setting input unit 105 of the terminal input unit 103.

[0074] The method for inputting the setting data is not particularly limited, but for example, as shown in FIG. 10, the setting data may be input into the setting input unit 105 by moving the mouse pointer to the position of each of the maximum and minimum rotation speed boxes 105a, clicking the mouse, inputting the value to be set, and then moving the mouse pointer to the position of the "send setting" switch 105b and clicking the mouse.

[0075] The display method of the frame 105a is not particularly limited. The display of the "maximum rotation speed" and "minimum rotation speed" frames 105a may be, for example, rotation speed (unit: rpm) as shown in Fig. 10, or may be, for example, a control signal voltage (unit: mV) supplied to an electronic governor which is the rotation speed change unit 24, or may be, for example, a ratio (unit: %) to the maximum rotation speed which is a performance of the engine 9. In other words, the setting data for the rotation speed may be data of a parameter which has a correlation with the rotation speed.

[0076] Then, when setting data is input to the setting input unit 105, the terminal device 101 (specifically, the external output unit 104c) outputs the setting data to the work vehicle 1. As a result, the work vehicle 1 (specifically, the acquisition unit 2a) acquires the setting data.

[0077] The vehicle processing device 2 pre-stores three or more levels of step number data. The vehicle processing device 2 then calculates a rotation speed group consisting of three or more levels of rotation speed based on the setting data and the step number data. For example, in Figure 11, the step number data is "five levels," the "minimum rotation speed" of the setting data is "1,000 rpm," and the "maximum rotation speed" of the setting data is "2,000 rpm."

[0078] Therefore, in the calculated rotation speed group, the first speed rotation speed (minimum rotation speed) is 1,000 rpm, the second speed rotation speed is 1,250 rpm, the third speed rotation speed is 1,500 rpm, the fourth speed rotation speed is 1,750 rpm, and the fifth speed rotation speed (maximum rotation speed) is 2,000 rpm. Thus, in Figure 11, the calculated rotation speed group is a rotation speed group consisting of five speeds at equal intervals of 250 rpm.

[0079] 11, the rotational speeds (intervals) between the rotational speeds in the rotational speed group are equal to each other, but the present invention is not limited to this. The rotational speeds (intervals) between the rotational speeds in the rotational speed group may be configured to gradually increase, gradually decrease, or randomly increase or decrease.

[0080] <Second calculation setting method> Next, the second calculation and setting method will be described with reference to FIGS.

[0081] The second calculation / setting method is a method in which setting data of either the "maximum number of rotations" or the "minimum number of rotations" is input to the setting input unit 105 of the terminal input unit 103. First, setting data of either the "maximum number of rotations" or the "minimum number of rotations" is input to the setting input unit 105 of the terminal input unit 103.

[0082] The method for inputting the setting data is not particularly limited, but for example, as shown in FIG. 12, the user may move the mouse pointer to drop-down list 105c, click the mouse, and select the desired number of rotations (maximum number of rotations or minimum number of rotations), then move the mouse pointer to frame 105a, click the mouse, and input the value to be set, and then move the mouse pointer to "Send setting" switch 105b and click the mouse, thereby inputting the setting data into setting input unit 105.

[0083] The display method of the box 105a is not particularly limited. The display of the "rotation speed" box 105b may be, for example, the rotation speed (unit: rpm) as shown in Fig. 12, or may be, for example, a control signal voltage (unit: mV) supplied to an electronic governor that is the rotation speed change unit 24, or may be, for example, a ratio (unit: %) to the maximum rotation speed that is a performance of the engine 9. In other words, the setting data for the rotation speed may be data of a parameter that has a correlation with the rotation speed.

[0084] Then, when setting data is input to the setting input unit 105, the terminal device 101 (specifically, the external output unit 104c) outputs the setting data to the work vehicle 1. As a result, the work vehicle 1 (specifically, the acquisition unit 2a) acquires the setting data.

[0085] The vehicle processing device 2 pre-stores three or more levels of step number data. The vehicle processing device 2 then calculates a rotation speed group consisting of three or more levels of rotation speed based on the setting data and the step number data. For example, in FIG. 13, the step number data is "five levels" and the "minimum rotation speed" of the setting data is "1,000 rpm."

[0086] Here, the rotational speeds (intervals) between the rotational speeds in the rotational speed group are rotational speeds that are a preset ratio to the rotational speeds in the setting data. Although not particularly limited, for example, in FIG. 13, the following formula is used:

[0087] The number of revolutions between "N-speed revolutions" and "(N+1)-speed revolutions" = Number of rotations set in data x N x 10% Here, N is a natural number. For example, if N is 2, the rotation speed between the second speed and the third speed is 200 rpm (= the minimum rotation speed of the set data 1,000 rpm × 2 × 10%).

[0088] Therefore, in the calculated rotation speed group, the first speed rotation speed (minimum rotation speed) is 1,000 rpm, the second speed rotation speed is 1,100 rpm, the third speed rotation speed is 1,300 rpm, the fourth speed rotation speed is 1,600 rpm, and the fifth speed rotation speed is 2,000 rpm. Thus, in Figure 13, the calculated rotation speed group is a rotation speed group consisting of five speeds, each increasing by 100 rpm, which is 10% of the rotation speed of the set data.

[0089] 13, the rotation speeds (intervals) between the rotation speeds in the rotation speed group gradually increase, but the present invention is not limited to this. The rotation speeds (intervals) between the rotation speeds in the rotation speed group may be equal, may gradually decrease, or may increase or decrease randomly.

[0090] <Third calculation setting method> Next, the third calculation and setting method will be described with reference to FIGS.

[0091] The third calculation / setting method is a method in which setting data for the "number of stages" is input to setting input unit 105 of terminal input unit 103. Note that in the third calculation / setting method, setting data for the "maximum number of rotations" and the "minimum number of rotations" are input arbitrarily. Therefore, first, setting data is input to setting input unit 105 of terminal input unit 103.

[0092] The method for inputting the setting data is not particularly limited, but for example, as shown in FIG. 14, the setting data may be input into the setting input unit 105 by moving the mouse pointer to the position of the step number box 105a, clicking the mouse, inputting the value to be set, and then moving the mouse pointer to the position of the "send setting" switch 105b and clicking the mouse.

[0093] The method for inputting the optional setting data for the "maximum number of rotations" and "minimum number of rotations" is not particularly limited, but may be, for example, a method in which the mouse pointer is placed on the toggle switch 105d for the number of rotations to be input, the mouse is clicked, and then the mouse pointer is placed on the frame 105a for the number of rotations to be input, the mouse is clicked, and the desired value is input.

[0094] The display method of the frame 105a is not particularly limited. The display of the "maximum rotation speed" and "minimum rotation speed" frames 105a may be, for example, rotation speed (unit: rpm) as shown in Fig. 14, or may be, for example, a control signal voltage (unit: mV) supplied to an electronic governor that is the rotation speed change unit 24, or may be, for example, a ratio (unit: %) to the maximum rotation speed that is a performance of the engine 9. In other words, the setting data for the rotation speed may be data of a parameter that has a correlation with the rotation speed.

[0095] Then, when setting data is input to the setting input unit 105, the terminal device 101 (specifically, the external output unit 104c) outputs the setting data to the work vehicle 1. As a result, the work vehicle 1 (specifically, the acquisition unit 2a) acquires the setting data.

[0096] The vehicle processing device 2 pre-stores maximum rotation speed data and minimum rotation speed data. If the setting data does not include setting data for at least one of the maximum rotation speed and the minimum rotation speed, the vehicle processing device 2 calculates a rotation speed group consisting of three or more rotation speed levels based on the setting data and the pre-stored rotation speed data. On the other hand, if the setting data includes setting data for both the maximum rotation speed and the minimum rotation speed, the vehicle processing device 2 calculates a rotation speed group consisting of three or more rotation speed levels based on the setting data.

[0097] For example, in Fig. 15, the setting data does not include both maximum and minimum rotation speed setting data. The number of stages data in the setting data is "5 stages," the pre-stored minimum rotation speed data is "1,000 rpm," and the pre-stored maximum rotation speed data is "2,000 rpm."

[0098] Therefore, in the calculated rotation speed group, the first speed rotation speed (minimum rotation speed) is 1,000 rpm, the second speed rotation speed is 1,250 rpm, the third speed rotation speed is 1,500 rpm, the fourth speed rotation speed is 1,750 rpm, and the fifth speed rotation speed (maximum rotation speed) is 2,000 rpm. Thus, in Figure 15, the calculated rotation speed group is a rotation speed group consisting of five speeds at equal intervals of 250 rpm.

[0099] 15, the rotational speeds (intervals) between the rotational speeds in the rotational speed group are equal to each other, but the present invention is not limited to this. The rotational speeds (intervals) between the rotational speeds in the rotational speed group may be configured to gradually increase, gradually decrease, or randomly increase or decrease.

[0100] Also, in Figure 15, we have explained a case where the setting data does not include setting data for both the maximum rotation speed and the minimum rotation speed, but even if it includes setting data for at least one of the maximum rotation speed and the minimum rotation speed, the vehicle processing device 2 calculates the rotation speed group in the same way (see Figure 15).

[0101] 10 to 15, when setting data is input to the setting input unit 105, the vehicle processing device 2 calculates a group of rotation speeds consisting of three or more stages of rotation speeds based on the setting data. Therefore, multiple engine rotation speeds when operating the operating unit 1b (cylinder 14, motor 15b) can be easily set.

[0102] It should be noted that the terminal device 101 outputs error data when a rotation speed smaller than the idling rotation speed is input as the minimum rotation speed to the setting input unit 105. The output of the error data is not particularly limited, and may be, for example, a display on the display unit 104a indicating that an error has occurred, or may be, for example, an audible message from the sound unit 104b indicating that an error has occurred.

[0103] This makes it possible to prevent the calculated rotation speed group from including a rotation speed lower than the idling rotation speed, and therefore, for example, it is possible to prevent the engine 9 from stopping due to the selection of a rotation speed lower than the idling rotation speed.

[0104] Although not particularly limited, for example, the vehicle processing device 2 may output the idling rotation speed to the terminal device 101, and the terminal device 101 may compare the acquired idling rotation speed with the input minimum rotation speed, and if the minimum rotation speed is smaller than the idling rotation speed, the terminal device 101 may output error data.

[0105] Also, for example, the terminal device 101 may store the idling rotation speed, and the terminal device 101 may compare the stored idling rotation speed with the input minimum rotation speed, and if the minimum rotation speed is smaller than the idling rotation speed, the terminal device 101 may output error data.

[0106] Also, for example, the vehicle processing device 2 may compare the stored idling rotation speed with the acquired minimum rotation speed, and if the minimum rotation speed is smaller than the idling rotation speed, the vehicle processing device 2 may output error data to the terminal device 101, and the terminal device 101 may output the error data.

[0107] As shown in Figures 10, 12 and 14, for example, the vehicle processing device 2 may output the current value of each item to the terminal device 101, and the terminal device 101 may display the acquired current setting value of each item on the display unit 104a (see "Current Value" in Figures 10, 12 and 14).

[0108] Also, for example, the vehicle processing device 2 may output the settable range (limit value) of each item to the terminal device 101, and the terminal device 101 may display the acquired settable range (limit value) of each item on the display unit 104a (see "Settable range" in FIG. 10). Although not particularly limited, the limit value of the "minimum rotation speed" may be the idling rotation speed, or may be, for example, a rotation speed greater than the idling rotation speed.

[0109] Next, a method for changing the rotation speed of the engine 9 will be described, assuming that the group of rotation speeds shown in Fig. 11 is calculated and set.

[0110] First, when operation unit 1b performs the first operation, vehicle processing device 2 selects an engine speed from a group of speeds. Then, when instruction data is input to speed change input unit 22e, vehicle processing device 2 changes the speed selected from the group of speeds based on the input instruction data. As a result, by inputting instruction data to speed change input unit 22e, the engine speed can be changed, and the first operation of operation unit 1b can be performed at a desired operation speed.

[0111] For example, when command data is input to the high-speed input unit 22c, the engine speed may be increased by one from the current speed. Specifically, when the current speed is the second speed (1,250 rpm), the engine speed may be changed to the third speed (1,500 rpm) when command data is input to the high-speed input unit 22c.

[0112] Furthermore, for example, when command data is input to low-speed input unit 22d, the engine speed may be reduced by one revolution from the current revolution. Specifically, for example, when command data is input to low-speed input unit 22d when the current revolution is the fourth-speed revolution (1,750 rpm), the engine speed may be changed to the third-speed revolution (1,500 rpm).

[0113] However, the present invention is not limited to such a configuration, and for example, the speed change input unit 22e may receive instruction data to change the rotation speed to a desired rotation speed. Specifically, for example, when the current rotation speed is the fourth-speed rotation speed (1,750 rpm), if instruction data to change the rotation speed to the second-speed rotation speed is input to the speed change input unit 22e, the engine rotation speed may be changed to the second-speed rotation speed (1,250 rpm).

[0114] On the other hand, when operation unit 1b performs the second operation, vehicle processing device 2 sets the engine speed to a preset set speed, separate from the group of calculated speeds. This allows the engine speed to be maintained at the set speed, regardless of whether or not there is an input to speed change input unit 22e. Therefore, when operation unit 1b performs the second operation, it is possible to prevent the speed of engine 9 from changing.

[0115] Meanwhile, for example, in the work vehicle 1, due to its structure for traveling in the fore-and-aft direction D1, the strength in the fore-and-aft direction D1 is high, but the strength in the up-and-down direction D3 is low. As a result, although not particularly limited, in this embodiment, the first operation is each slide process in the loading / unloading work (specifically, the operation of the motor 15b), and the second operation is each lift process in the loading / unloading work (specifically, the operation of the cylinder 14).

[0116] Therefore, the set engine speed when the operation unit 1b performs the second operation is set to a value equal to or lower than the minimum engine speed of the calculated engine speed group. Although not particularly limited, for example, as in this embodiment, the set engine speed may be set to the idling speed (800 rpm).

[0117] As a result, when the operating unit 1b performs the second operation, the engine speed is maintained at a slow speed, so that the operating speed of the operating unit 1b can be slowed down when the operating unit 1b performs the second operation. Specifically, the extension / contraction speed can be slowed down when the cylinder 14 performs the extension / contraction operation. Therefore, for example, the second operation can be performed at a desired operating speed.

[0118] [1] As described above, the vehicle system 100, as in this embodiment, Work vehicle 1 and a terminal device 101 capable of communicating with the work vehicle 1, The work vehicle 1 is Engine 9 and an operating unit 1b that operates at an operating speed corresponding to the rotation speed of the engine 9; a processing device 2 that controls the operation unit 1b, The terminal device 101 includes a setting input unit 105 to which setting data for setting the maximum rotation speed and the minimum rotation speed of the engine 9 is input, The processing device 2 includes: three or more level data are stored in advance; calculating a group of rotation speeds consisting of three or more rotation speed levels based on the setting data and the level number data; The rotation speed of the engine 9 is selected from the group of rotation speeds. This configuration is preferable.

[0119] According to this configuration, a group of rotation speeds consisting of three or more stages of rotation speeds is calculated based on setting data that sets the maximum and minimum rotation speeds of the engine 9 and the stage number data that is stored in advance, which is input to the setting input unit 105. Then, since the rotation speed of the engine 9 is selected from the group of rotation speeds, it is possible to easily set multiple rotation speeds of the engine 9 when operating the operation unit 1b.

[0120] [2] Furthermore, the vehicle system 100, as in this embodiment, Work vehicle 1 and a terminal device 101 capable of communicating with the work vehicle 1, The work vehicle 1 is Engine 9 and an operating unit 1b that operates at an operating speed corresponding to the rotation speed of the engine 9; a processing device 2 that controls the operation unit 1b, The terminal device 101 includes a setting input unit 105 to which setting data for setting either the maximum rotation speed or the minimum rotation speed of the engine 9 is input, The processing device 2 includes: three or more level data are stored in advance; calculating a group of rotation speeds consisting of three or more rotation speed levels based on the setting data and the level number data; selecting a rotation speed of the engine 9 from the group of rotation speeds; The rotation speeds between the rotation speeds in the group of rotation speeds are rotation speeds at a preset ratio with respect to the rotation speed of the setting data. This configuration is preferable.

[0121] According to this configuration, a group of rotation speeds consisting of three or more stages of rotation speeds is calculated based on setting data that sets either the maximum rotation speed or the minimum rotation speed of the engine 9 and the pre-stored stage number data, which is input to the setting input unit 105. Then, since the rotation speed of the engine 9 is selected from the group of rotation speeds, it is possible to easily set multiple rotation speeds of the engine 9 when operating the operation unit 1b.

[0122] [3] Furthermore, the vehicle system 100, as in this embodiment, Work vehicle 1 and a terminal device 101 capable of communicating with the work vehicle 1, The work vehicle 1 is Engine 9 and an operating unit 1b that operates at an operating speed corresponding to the rotation speed of the engine 9; a processing device 2 that controls the operation unit 1b, The terminal device 101 includes a setting input unit 105 into which setting data for setting the number of stages of three or more is input, The processing device 2 includes: calculating a group of rotation speeds consisting of three or more stages of rotation speeds based on the maximum rotation speed data, the minimum rotation speed data, and the setting data; The engine speed 9 is selected from the group of speeds. This configuration is preferable.

[0123] According to this configuration, a group of rotation speeds consisting of three or more stages of rotation speeds is calculated based on the maximum rotation speed data, the minimum rotation speed data, and setting data for setting three or more stages input to the setting input unit 105. Then, the rotation speed of the engine 9 is selected from the group of rotation speeds, so that multiple rotation speeds of the engine 9 when operating the operating unit 1b can be easily set.

[0124] [4] In addition, in any one of the vehicle systems 100 described above in [1] to [3], as in this embodiment, The work vehicle 1 is equipped with a speed change input unit 22e to which instruction data for changing the rotation speed of the engine 9 is input, The operation unit 1b performs a plurality of operations including a first operation and a second operation, The processing device 2 includes: When the operation unit 1b performs the first operation, the rotation speed selected from the group of rotation speeds is changed based on the instruction data, while When the operation unit 1b performs the second operation, the rotation speed of the engine 9 is set to a preset rotation speed that is separate from the group of rotation speeds. This configuration is preferable.

[0125] According to this configuration, when the action unit 1b performs the first action, the rotation speed selected from the group of rotation speeds is changed based on the instruction data input to the speed change input unit 22e. As a result, by inputting instruction data to the speed change input unit 22e, the rotation speed of the engine 9 can be changed, and the first action of the action unit 1b can be performed at a desired action speed.

[0126] On the other hand, when operation unit 1b performs the second operation, the rotation speed of engine 9 is set to a preset rotation speed separate from the group of calculated rotation speeds. This makes it possible to maintain the rotation speed of engine 9 at the set rotation speed regardless of whether or not there is an input to speed change input unit 22e. Therefore, it is possible to prevent the rotation speed of engine 9 from changing when operation unit 1b performs the second operation.

[0127] [5] Furthermore, in the vehicle system 100 described above in [4], as in this embodiment, the set rotation speed is equal to or less than the minimum rotation speed of the group of rotation speeds; This configuration is preferable.

[0128] With this configuration, the set rotation speed is equal to or less than the minimum rotation speed of the group of rotation speeds, so that when the action unit 1b performs the second action, the rotation speed of the engine 9 is maintained at a slow rotation speed. This allows the action speed to be slowed down when the action unit 1b performs the second action.

[0129] [6] In addition, in any one of the vehicle systems 100 described above in [1] to [5], as in this embodiment, The terminal device 101 outputs error data when a rotation speed smaller than an idling rotation speed is input as the minimum rotation speed to the setting input unit 105. This configuration is preferable.

[0130] According to this configuration, error data is output when a rotation speed lower than the idling rotation speed is input as the minimum rotation speed to the setting input unit 105. This makes it possible to prevent rotation speeds lower than the idling rotation speed from being included in the group of calculated rotation speeds.

[0131] [7] Furthermore, as in this embodiment, the work vehicle 1 Used in any one of the vehicle systems 100 described above in [1] to [6], This configuration is preferable.

[0132] According to this configuration, the rotation speeds of the plurality of engines 9 when operating the operating unit 1b can be easily set.

[0133] [8] In addition, the program 4a, as in this embodiment, A program 4a for causing the terminal device 101 of any one of the vehicle systems 100 described above [1] to [6] to execute a data output method, The data output method includes a step of outputting the setting data to the work vehicle 1 when the setting data is input to the setting input unit 105. This configuration is preferable.

[0134] According to this configuration, the rotation speeds of the plurality of engines 9 when operating the operating unit 1b can be easily set.

[0135] The vehicle system 100, work vehicle 1, and program 4a are not limited to the configurations of the above-described embodiments, nor are they limited to the above-described effects. Furthermore, it goes without saying that various modifications can be made to the vehicle system 100, work vehicle 1, and program 4a without departing from the spirit of the present invention. For example, it goes without saying that one or more of the configurations, methods, etc. relating to the various modified examples described below may be selected arbitrarily and adopted in the configurations, methods, etc. relating to the above-described embodiments.

[0136] (A) In the vehicle system 100 according to the above embodiment, in the first calculation / setting method, setting data for setting the maximum and minimum rotation speeds of the engine 9 is input to the setting input unit 105, and the vehicle processing device 2 stores the step number data in advance and calculates the rotation speed group based on the setting data and the step number data. However, the vehicle system 100 is not limited to this configuration.

[0137] (A-1) For example, the configuration may be such that setting data for setting the maximum and minimum rotation speeds of the engine 9 is required to be input to the setting input unit 105, while setting data for setting the number of stages is optionally input to the setting input unit 105.

[0138] In such a configuration, the vehicle processing device 2 stores step number data (e.g., default value, current value) in advance, and if the setting data includes step number data, the vehicle processing device 2 calculates the rotation speed group based on the setting data, while if the setting data does not include step number data, the vehicle processing device 2 calculates the rotation speed group based on the setting data and the step number data stored in advance.

[0139] (A-2) Also, for example, not only the setting data for setting the maximum and minimum rotation speeds of the engine 9 but also the setting data for setting the number of stages may be input to the setting input unit 105, and the vehicle processing device 2 may calculate the rotation speed group based on the setting data.

[0140] (B) Furthermore, in vehicle system 100 according to the above embodiment, when operation unit 1b performs the first operation, vehicle processing device 2 changes the rotation speed selected from the group of rotation speeds based on instruction data input to speed change input unit 22e, while when operation unit 1b performs the second operation, vehicle processing device 2 sets the engine rotation speed to a preset rotation speed that is separate from the calculated group of rotation speeds. However, vehicle system 100 is not limited to this configuration.

[0141] For example, vehicle processing device 2 may be configured to change the rotation speed selected from the group of rotation speeds based on the instruction data input to speed change input unit 22e regardless of the type of operation of operation unit 1b. In other words, vehicle processing device 2 may be configured to change the rotation speed selected from the group of rotation speeds based on the instruction data input to speed change input unit 22e for all operations of operation unit 1b.

[0142] (C) Furthermore, in the vehicle system 100 according to the above embodiment, the work vehicle 1 is equipped with a speed change input unit 22e to which instruction data for changing the engine speed is input, and the vehicle processing device 2 changes the rotation speed selected from the calculated rotation speed group based on the instruction data input to the speed change input unit 22e. However, the vehicle system 100 is not limited to this configuration.

[0143] For example, the work vehicle 1 may be configured not to have a speed change input unit 22e. In such a configuration, when the operation unit 1b performs each operation, the vehicle processing device 2 may be configured to set the rotation speed from the calculated rotation speed group to an ordinal number that has been individually set in advance for each operation. In other words, the ordinal number of the rotation speed may be determined for each operation.

[0144] For example, the engine speed may be set in advance to the second-speed speed when operation unit 1b performs the first operation. With this configuration, for example, if the second-speed speed in the calculated speed group is 1,250 rpm, the engine speed when operation unit 1b performs the first operation will be 1,250 rpm, and if the second-speed speed in the calculated speed group is 1,500 rpm, the engine speed when operation unit 1b performs the first operation will be 1,500 rpm.

[0145] (D) Furthermore, in vehicle system 100 according to the above embodiment, the first operations in which the engine speed is changed by inputting instruction data to speed change input unit 22e are the slide steps (specifically, the operation of motor 15b) in the loading / unloading operation, and the second operations in which the engine speed is unchanged are the lift steps (specifically, the operation of cylinder 14) in the loading / unloading operation. However, vehicle system 100 is not limited to this configuration.

[0146] For example, the first operation may be each lifting process in the loading / unloading operation (specifically, the operation of the cylinder 14). Also, for example, the second operation may be each sliding process in the loading / unloading operation (specifically, the operation of the motor 15b).

[0147] Also, in each lifting process or each sliding process, the first half may be one of the first operation and the second operation, and the second half may be the other of the first operation and the second operation. Also, for example, when the operating unit 1b performs a reciprocating operation, the forward operation may be one of the first operation and the second operation, and the outward operation may be the other of the first operation and the second operation.

[0148] (E) In the vehicle system 100 according to the above embodiment, when the operation unit 1b performs the second operation, the vehicle processing device 2 sets the engine speed to a preset speed that is separate from the calculated speed group, and the preset speed is equal to or less than the minimum speed of the calculated speed group. However, the vehicle system 100 is not limited to this configuration. For example, the preset speed may be greater than the minimum speed of the calculated speed group.

[0149] (F) Furthermore, in vehicle system 100 according to the above embodiment, terminal device 101 is configured to output error data when a rotation speed lower than the idling rotation speed is input as the minimum rotation speed to setting input unit 105. However, vehicle system 100 is not limited to such a configuration.

[0150] For example, the terminal device 101 may be configured not to output error data when a rotation speed smaller than the idling rotation speed is input as the minimum rotation speed to the setting input unit 105. In such a configuration, the minimum rotation speed may be, for example, a rotation speed that is set in advance (for example, the idling rotation speed) instead of the rotation speed input to the setting input unit 105, or, for example, the current minimum rotation speed instead of the rotation speed input to the setting input unit 105.

[0151] (G) In addition, in the vehicle system 100 according to the above embodiment, the cargo handling apparatus 8 is configured to extend the cylinder 14 to lower the front end of the cargo receiving apparatus 7, thereby moving the cargo receiving apparatus 7 from the inclined landing position to the final landing position. In other words, the cargo handling apparatus 8 is configured to include a second unloading lift step in the unloading method. However, the vehicle system 100 is not limited to this configuration.

[0152] For example, the unloading method of the cargo handling device 8 may not include the second unloading lift step, i.e., the unloading method may end with the third rear slide step. Also, for example, the unloading method of the cargo handling device 8 may not include the third rear slide step and the second unloading lift step, i.e., the unloading method may end with the second rear slide step.

[0153] (H) In the vehicle system 100 according to the above embodiment, the work vehicle 1 is configured as a vehicle transporter. However, the vehicle system 100 is not limited to this configuration. For example, the cargo receiving device 7 may be a cargo box (container) and the work vehicle 1 may be a container transport vehicle. Also, for example, the work vehicle 1 may be configured as a dump truck, or may be configured as a concrete pump truck.

[0154] (I) Note that, for example, the order of execution of each process, such as operations, procedures, steps, and stages, in the systems, methods, programs, and devices shown in the claims, specifications, and drawings, can be realized in any order, as long as the output of a previous process is not used in a subsequent process. For example, even if the terms "first" and "next" are used for convenience, this does not mean that the processes must be executed in that order. [Explanation of symbols]

[0155] 1...work vehicle, 1a...working device, 1b...operating unit, 2...vehicle processing device, 2a...acquisition unit, 2b...storage unit, 2c...calculation unit, 2d...control unit, 3...processor, 4...memory, 4a...program, 4b...database, 5...interface, 6...vehicle body, 6a...operator's cab, 6b...vehicle body frame, 6c...wheels, 7...load receiving device, 7a...body, 7b...tailgate, 8...load handling device, 8a...hydraulic pump, 8b...valve, 9...engine, 10...drive switching unit, 11...lift frame, 12...device frame, 13...lift arm, 14...cylinder, 15...slide mechanism, 15a...chain, 15b...motor, 16...vehicle body inclination angle detection unit, 17...lift inclination angle detection unit, 18...load receiving movement detection unit, 19...first load receiving position detection unit, 20...second load receiving position detection unit, 21...third load Receiving position detection unit, 22... vehicle input unit, 22a... loading input unit, 22b... unloading input unit, 22c... high speed input unit, 22d... low speed input unit, 22e... speed change input unit, 23... vehicle output unit, 23a... display unit, 23b... sound output unit, 23c... external output unit, 24... rotation speed change unit, 100... vehicle system, 101... terminal device, 102... terminal processing device, 102a... acquisition unit, 102b... memory unit, 10 2c...Calculation unit, 102d...Control unit, 103...Terminal input unit, 104...Terminal output unit, 104a...Display unit, 104b...Sound output unit, 104c...External output unit, 105...Setting input unit, 105a...Frame, 105b...Switch, 105c...Drop-down list, 10d...Toggle switch, D1...Front-rear direction (first horizontal direction), D2...Left-right direction (second horizontal direction), D3...Up-down direction, X1...Communication means

Claims

1. A work vehicle, a terminal device capable of communicating with the work vehicle, The work vehicle is The engine and an operating unit that operates at an operating speed corresponding to the number of revolutions of the engine; a processing device that controls the operation unit, the terminal device includes a setting input unit to which setting data for setting a maximum rotation speed and a minimum rotation speed of the engine is input, The processing device includes: three or more level data are stored in advance; calculating a group of rotation speeds consisting of three or more rotation speed levels based on the setting data and the level number data; The vehicle system selects the engine speed from the group of speeds.

2. A work vehicle, a terminal device capable of communicating with the work vehicle, The work vehicle is The engine and an operating unit that operates at an operating speed corresponding to the number of revolutions of the engine; a processing device that controls the operation unit, the terminal device includes a setting input unit to which setting data for setting either a maximum rotation speed or a minimum rotation speed of the engine is input, The processing device includes: three or more level data are stored in advance; calculating a group of rotation speeds consisting of three or more rotation speed levels based on the setting data and the level number data; selecting a rotation speed of the engine from the group of rotation speeds; A vehicle system, wherein the rotation speeds between the rotation speeds in the group of rotation speeds are rotation speeds that have a preset ratio with respect to the rotation speed of the setting data.

3. A work vehicle, a terminal device capable of communicating with the work vehicle, The work vehicle is The engine and an operating unit that operates at an operating speed corresponding to the number of revolutions of the engine; a processing device that controls the operation unit, the terminal device includes a setting input unit into which setting data for setting three or more levels is input, The processing device includes: calculating a group of rotation speeds consisting of three or more stages of rotation speeds based on the maximum rotation speed data, the minimum rotation speed data, and the setting data; The vehicle system selects the engine speed from the group of speeds.

4. the work vehicle includes a speed change input unit to which instruction data for changing the engine speed is input, the action unit performs a plurality of actions including a first action and a second action; The processing device includes: When the operation unit performs the first operation, the rotation speed selected from the group of rotation speeds is changed based on the instruction data, while 4. The vehicle system according to claim 1, wherein when the operation unit performs the second operation, the engine speed is set to a preset set speed separate from the group of speeds.

5. 5. The vehicle system according to claim 4, wherein the set rotation speed is equal to or less than a minimum rotation speed of the group of rotation speeds.

6. 2. The vehicle system according to claim 1, wherein the terminal device outputs error data when a rotation speed lower than an idling rotation speed is input as the minimum rotation speed to the setting input unit.

7. A work vehicle used in the vehicle system according to any one of claims 1 to 3.

8. A program for causing the terminal device of the vehicle system according to any one of claims 1 to 3 to execute a data output method, The data output method is a program including a step of outputting the setting data to the work vehicle when the setting data is input to the setting input unit.

Images