Specially equipped vehicles

Abstract

To provide a specially-equipped vehicle which enables easy adjustment of a magnitude of a driving force of an accessory.SOLUTION: A specially-equipped vehicle includes an accessory which receives power from a power source to operate and further includes: a start operation unit 17 for starting the accessory; an increase / decrease control unit 23 which may increase or decrease a start output value of the accessory so as to change the start output value of the accessory when the start operation part 17 is operated to start the accessory into a target output value; and a control unit 15 having a storage part 14 which stores the start output value of the accessory. The control unit 15 starts the accessory at the start output value stored in the storage part 14 when the start operation part 17 is operated to start the accessory.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a specially equipped vehicle that is equipped with an attached object that operates by receiving power from a power source. [Background technology]

[0002] The specially equipped vehicle is equipped with a power take-off device that can connect or disconnect the engine and mounted equipment, a variable resistance volume that adjusts the engine speed that serves as the power source for driving the mounted equipment when the power take-off device is connected, and a control unit that controls the operation of the engine so that the engine speed corresponds to the operating position of the volume when rotated.

[0003] Depending on the operating position of the volume, the next time the mounted equipment is started, the engine speed may become high, which may damage the actuator that drives the mounted equipment. Therefore, when starting the mounted equipment, the control unit determines whether the operating position of the volume is an operating position that exceeds the engine's upper limit for starting, and if it does, starts the engine at the upper limit for starting (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-229857 Summary of the Invention [Problem to be solved by the invention]

[0005] However, if the previous work was completed with the volume control position still above the upper startup limit, when adjusting the engine speed the next time, it was necessary to return the volume control to a predetermined value or below (below the upper startup limit), which was a cumbersome operation.

[0006] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a specially equipped vehicle that allows for easy adjustment of the magnitude of the driving force of an attached object. [Means for solving the problem]

[0007] The specially equipped vehicle of the present invention is a specially equipped vehicle equipped with a mounted object that operates by receiving power from a power source, and is equipped with a start operating unit for starting the mounted object, an increase / decrease operating unit that can increase / decrease the start output value of the mounted object when operating the start operating unit to start the mounted object so that the start output value of the mounted object becomes a target output value, and a control unit having a memory unit that stores the start output value of the mounted object, and is characterized in that when operating the start operating unit to start the mounted object, the control unit starts the mounted object with the start output value stored in the memory unit.

[0008] According to the above configuration, even if the previous work was completed with the output value increased or decreased relative to the starting output value using the increase / decrease control unit, when the mounted object is started during the next work, it will be started with the starting output value stored in the memory unit, so adjustment from the starting output value to the target output value can be easily made.

[0009] Furthermore, in the specially equipped vehicle of the present invention, the start operating unit is provided with a selection operating unit that selects from a plurality of operating modes that have different control over the operation of the mounted object, the memory unit is configured to be able to store a start output value for each operating mode, and the control unit may be configured to retrieve from the memory unit a start output value that corresponds to the operating mode selected by the selection operating unit and start the mounted object with the retrieved start output value.

[0010] As described above, when starting the mounted equipment, one operation mode can be selected from among a plurality of operation modes using the selection operation unit, and the starting output value corresponding to the selected operation mode can be retrieved from the memory unit, and the mounted equipment can be started using the retrieved starting output value.

[0011] The specially equipped vehicle of the present invention may also include a setting change operation unit for changing the setting of the starting output value for each of the operation modes.

[0012] As described above, the setting change operation unit can be used to change the setting of the starting output value for each operation mode. [Effects of the Invention]

[0013] The present invention provides a specially equipped vehicle that can easily adjust the magnitude of the driving force of the mounted equipment, since the mounted equipment is started with the starting output value stored in the memory unit when the mounted equipment is started. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a schematic side view of a sprinkler vehicle, which is an example of a specially equipped vehicle of the present invention. [Figure 2] The control panel is shown in (a) a front view and (b) a side view. [Figure 3] FIG. 2 is a front view of the meter panel in a vehicle speed synchronization mode. [Figure 4] FIG. 10 is a front view of the meter panel when an error occurs. DETAILED DESCRIPTION OF THE INVENTION

[0015] A sprinkler truck 1 as a specially equipped vehicle according to one embodiment of the present invention will be described below with reference to Figure 1. The sprinkler truck 1 can be used, for example, to run on a highway to sprinkle water. The sprinkler truck 1 includes a driver's cab 2 equipped with an engine E / G, which is a driving source for running the vehicle, and a sprinkler device 3, which is an attachment mounted on a vehicle body (not shown).

[0016] The sprinkler device 3 comprises a tank 4 that is long in the front-to-rear direction and is mounted on the rear of the vehicle body and that holds water to be sprayed, a sprinkler pump P that draws in the water in the tank 4 and pressurizes it, a front water-spraying nozzle (not shown) and a rear water-spraying nozzle 5 that spray water by pressurizing it through piping (not shown) when the sprinkler pump P is driven, and an electric motor M that serves as a power source that is provided independently of the engine E / G and that rotates the sprinkler pump P.

[0017] The sprinkler pump P is equipped with a pump rotation speed sensor 6 that detects the rotation speed. Rotation speed information from this pump rotation speed sensor 6 is input to a controller 7. The controller 7 controls the drive of the electric motor M based on operation information from an operation panel 8A of a control panel 8 provided in the operator's cab 2 and information from an ECU 9, which will be described later. The controller 7 also constantly monitors the entire system of the sprinkler device 3, and if any abnormality is detected, takes action such as issuing an alarm or stopping the system.

[0018] An ECU (engine control unit) 9 is connected between the engine E / G and an accelerator pedal 10. The ECU controls the operation of the engine E / G based on opening information of the accelerator pedal 10 and speed information from a vehicle speed sensor 11. Reference numeral 12 in Fig. 1 denotes front wheels, and 13 denotes rear wheels.

[0019] As shown in FIGS. 2(a) and 2(b), the operation panel 8 includes a box 8B with an opening at the front thereof and a built-in control unit 15 having a memory unit 14, and an operation panel 8A that covers the opening of the box 8B. The operation panel 8A is disposed near a meter panel 16 (see FIG. 3) provided in the driver's cab 2. Specifically, as shown in FIG. 2(a), the operation panel 8A includes a start operation unit 17 for starting the electric motor M to start the sprinkler pump P of the sprinkler device 3. The start operation unit 17 includes selection operation units 18, 19, and 20 for selecting from a plurality of operation modes that differ in control of the operation of the electric motor M. The operation panel 8A also includes a lane width setting operation unit 21 for selecting the road width to be sprinkled on the road, a screen display switching operation unit 22, a rotary encoder-type rotation operation unit 23 as an increase / decrease operation unit for adjusting the amount of water sprinkled, a Back switch 24 used when a warning or error occurs, and an Enter switch 25 for confirming the selection made using the various operation units. As will be described later, the Enter switch 25 is also used when a warning or error occurs. The operation section of the operation panel 8A can be operated not only while the vehicle is stopped, but also while the vehicle is moving.

[0020] The selection operation units 18, 19, and 20 are composed of three push-button switches for selecting one of three operation modes (vehicle speed synchronization mode, constant pump rotation mode, and manual operation mode), and are arranged side by side on the left side of the upper part of the operation panel 8A. The left switch 18 is a vehicle speed synchronization switch that synchronizes with the vehicle speed to maintain a constant water spray volume per unit area. The center switch 19 is a constant pump rotation switch that maintains the pump rotation at a set rotation speed regardless of the engine speed (vehicle speed). The right switch 20 is a manual switch that is used in an emergency, such as when an abnormality occurs in the pump rotation speed sensor 6. Pressing this switch 20 drives the electric motor M to rotate the watering pump P at the output value set by the rotation operation unit 23; feedback control to maintain the rotation speed of the watering pump P at the set target rotation speed is not performed.

[0021] When any of the three push-button switches 18, 19, 20 is pressed, the control unit 15 retrieves from the memory unit 14 the starting output value corresponding to the pressed operating mode, and starts the electric motor M with the retrieved starting output value. Therefore, even if the output value during the previous watering operation was increased or decreased relative to the starting output value using the rotation operation unit 23 described below and the operation was completed, when the electric motor M is started during the next operation, the electric motor M is started with the starting output value stored in the memory unit 14, making it easy to adjust the starting output value to the target output value.

[0022] The lane width setting operation unit 21 is composed of three push-button switches 26, 27, and 28 for selecting the lane width of the road, and is arranged side by side in the vertical center of the operation panel 8A. The left switch 26 is a 1-lane switch used when sprinkling water on one lane of the road. The switch 27 in the horizontal center is a 2-lane switch used when sprinkling water on two lanes of the road. The right switch 28 is a 3-lane switch used when sprinkling water on three lanes of the road. In this embodiment, the width over which water is sprinkled or the amount of water to be sprayed (the discharge rate of the spray pump P) is changed by selecting a lane. However, the operation unit may be configured with switches (operating units) that can freely set the actual sprinkling width to any width or change the amount of water to be sprayed (the discharge rate of the spray pump P) to any amount.

[0023] The screen display switching operation unit 22 is composed of a push-button switch located at the lower left end. Each time the switch is pressed, the operation mode is switched sequentially between operation mode and setting mode. After switching to setting mode, when the desired operation mode is selected, the setting change operation unit changes the setting of the starting output value of the electric motor M corresponding to the rotation speed of the sprinkler pump P of the sprinkler device 3. Specifically, by pressing the screen display switching operation unit 22 to switch to setting mode, and selecting the operation mode for which the starting output value of the electric motor M is to be changed (the above-mentioned vehicle speed synchronization mode, constant pump rotation mode, or manual operation mode), the water discharge rate is changed by rotating the rotor 23A of the rotation operation unit 23 (described later) clockwise to increase the water discharge rate, or by rotating it counterclockwise to decrease the water discharge rate. After the change, by pressing the Enter switch 25, the starting output value of the electric motor M corresponding to the changed water discharge rate is stored in the memory unit 14 within the operation panel 8. Here, the values ​​to be set for each of the above-mentioned three operation modes in setting mode are: for vehicle speed synchronization mode, the water spray rate per unit area (L / m 2), the pump constant speed mode is the starting output value of the electric motor M relative to the rotation speed (rpm) of the watering pump P, and the manual operation mode is the starting output value of the electric motor M relative to the rotation speed (rpm) of the watering pump P. If the starting output value of the electric motor M for each of these three operating modes is set, the next time watering is performed, by pressing either switch 19 or 20, whichever is the two switches out of the three push-button switches 18, 19, and 20, the starting output value of the electric motor M set for the selected operating mode will be retrieved, and the electric motor M will start at the retrieved starting output value. In the case of switch 18 which operates in the vehicle speed synchronization mode, by pressing switch 18 and then pressing lane width setting operation unit 21, the starting output value of electric motor M set in the selected operating mode is retrieved, and electric motor M is started at the retrieved starting output value, but if lane width setting operation unit 21 is not present, by pressing switch 18, as with the two switches 19 and 20, the starting output value of electric motor M set in the selected operating mode is retrieved, and electric motor M is started at the retrieved starting output value.

[0024] The rotary operation unit 23 is an increase / decrease operation unit capable of increasing / decreasing the starting output value and target (desired) output value of the electric motor M. Specifically, it is configured as a rotary type including a rotor 23A that can be rotated clockwise (right-handed) or counterclockwise (left-handed) and a rotary encoder (not shown) attached to the rotary shaft (not shown) of the rotor 23A to detect the direction and amount of rotation of the rotary shaft. When the rotary operation unit 23 is rotated clockwise, it increases the starting output value of the electric motor M, thereby increasing the water discharge rate. When the rotary operation unit 23 is rotated counterclockwise, it decreases the starting output value, thereby decreasing the water discharge rate. The rotary operation unit 23 is configured as a rotary type, allowing for quick and accurate adjustment of the discharge rate. Furthermore, while conventional variable resistor-type potentiometers require the potentiometer to be returned to 0 and then increased to the desired output value, the present invention allows for easy adjustment of the desired output value from the starting output value by simply rotating the rotary operation unit 23 clockwise or counterclockwise.

[0025] More specifically, when a warning or error occurs, the controller 7 displays a display confirmation window 29 for a warning / error occurrence information screen on the display screen 16A of the meter panel 16, as shown in Fig. 6. When the display confirmation window 29 is displayed, pressing the Enter switch 25 on the operation panel 8A displays a warning / error occurrence information screen (not shown), and pressing the Back switch 24 on the operation panel 8A closes the display confirmation window 29. Even when an error occurs, it may be possible to sprinkle water in constant pump rotation mode or manual mode depending on the location of the fault. In such a case, the switch for the mode that allows sprinkling water (e.g., 19A or 20A) among the light-emitting diodes 18A, 19A, and 20A provided on the switches can be made to flash to alert the operator.

[0026] To explain the case of sprinkling water in the vehicle speed synchronization mode, the power is turned on and the display screen 16A (see FIG. 3) of the meter panel 16 is displayed. Next, by pressing the vehicle speed synchronization switch 18, the currently set water sprinkling amount (for example, 0.080 L / m) is displayed on the display screen 16A. 2 ) is displayed on the water sprinkling rate setting display section 16a, and the lane width currently set on the display screen 16A (for example, 1 lane) is displayed on the lane width setting display section 16b. The display screen 16A also has a vehicle speed synchronization display section 16c and a vehicle speed display section 16d. The display screen 16A also displays the water level and date in the tank 4. At this time, the control section 15 reads the starting output value of the electric motor M (water sprinkling rate 0.080 L / m) stored in the memory section 14. 2) is extracted (read). When any one of the three lane width setting switches 26, 27, 28 is pressed, electric motor M is driven at a starting output value to rotate sprinkler pump P. Next, by rotating rotor 23A clockwise or counterclockwise to set the target (desired) water sprinkler volume, electric motor M is driven at an output value corresponding to the set water sprinkler volume. To stop the water sprinkler pump P, press vehicle speed synchronization switch 18 again after setting is complete to enter standby mode and stop the water sprinkler pump P. Furthermore, when setting is complete and sprinkler truck 1 is driven to perform water sprinkler operation, controller 7 controls the drive of electric motor M to adjust the rotation speed of water sprinkler pump P so that the water sprinkler volume corresponding to the vehicle speed detected by vehicle speed sensor 11, i.e., the volume of water sprinkled per unit area, remains constant. The output value of electric motor M for the set water spray amount is stored in memory unit 14. Therefore, unless operation panel 8A is powered off, when watering for the second or subsequent times, simply pressing vehicle speed synchronization switch 18 will drive electric motor M at the target output value, rotate watering pump P, and start watering at the same water spray amount as the first time. Watering ends when operation panel 8A is powered off. When operation panel 8A is powered on and vehicle speed synchronization mode is selected for the next watering operation, electric motor M is driven at the starting output value stored in memory unit 14 to rotate watering pump P. The starting output value of electric motor M may be set to 0. In this case, the water spray amount will also be 0.

[0027] To explain the case of watering in the constant pump rotation mode, the power is turned on and the display screen 16A of the meter panel 16 is displayed. Next, when the constant pump rotation switch 19 is pressed, the control unit 15 retrieves (reads) the starting output value of the electric motor M stored in the memory unit 14 and drives the electric motor M at the starting output value to rotate the watering pump P. Next, the rotating body 23A is rotated to set the target (desired) output value of the electric motor M. Note that if the starting output value of the electric motor M is set to 0, the watering pump P does not rotate, and the rotating body 23A is rotated to set the starting output value of the electric motor M from 0 to the target output value. After setting the target output value of the electric motor M, the watering truck 1 is driven to perform watering work. While the watering truck 1 is running, the electric motor M is driven at the target output value to rotate the watering pump P. Note that if the constant pump rotation switch 19 is pressed again after setting the target output value of the electric motor M, the watering truck 1 enters standby mode and the watering pump P stops.

[0028] To explain the case of watering in the manual operation mode, the power is turned on and the display screen 16A of the meter panel 16 is displayed. Next, when the manual switch 20 is pressed, the control unit 15 retrieves (reads) the starting output value of the electric motor M stored in the memory unit 14 and drives the electric motor M at the starting output value to rotate the watering pump P. Next, the rotating body 23A is rotated to set the target (desired) output value of the electric motor M. Note that if the starting output value of the electric motor M is set to 0, the watering pump P does not rotate, and the rotating body 23A is rotated to set the starting output value of the electric motor M from 0 to the target output value. After setting the target output value of the electric motor M, the watering truck 1 is driven to perform watering work. While the watering truck 1 is running, the electric motor M is driven at the target output value to rotate the watering pump P. Note that if the manual switch 20 is pressed again after setting the target output value of the electric motor M, the watering truck 1 enters standby mode and the watering pump P stops.

[0029] The present invention can be modified in various ways without departing from the spirit and scope of the invention. The specific configurations of the various parts are not limited to those of the above-described embodiment. For example, the present invention can be applied to special-purpose vehicles, not limited to sprinkler trucks, but also to tank trucks capable of carrying liquids such as gasoline, diesel, and kerosene, dump trucks, garbage trucks, concrete pump trucks, aerial work vehicles, vehicle transporters, powder and granular material transporters, tailgate lifters, and the like.

[0030] In the above embodiment, an electric motor is used as the power source for the mounted object, but the engine E / G, which is the driving source for traveling, may also be used to drive the sprinkler pump P. In this case, the idling speed of the engine E / G may be set to the starting speed that starts the sprinkler pump P in all modes.

[0031] Furthermore, in the above embodiment, the start operating unit 17 is composed of selection operating units 18, 19, and 20 for selecting multiple operating modes, but it may also be an operating unit (power switch) for turning the power on, a PTO switch for switching the on / off operation of the PTO clutch, a switch for operating mounted equipment (for example, a switch for operating one of the booms of a concrete pump truck), etc.

[0032] Furthermore, although the above embodiment has three operation modes, it may have two operation modes or any number of operation modes greater than or equal to four.

[0033] Furthermore, in the above embodiment, the three operation modes are selected using the three selection operation units 18, 19, and 20, but it is also possible to configure the three operation modes to be selectable using one operation unit.

[0034] In the above embodiment, the selection operation units 18, 19, 20 and the setting change operation unit (screen display switching operation unit 22) are configured as push buttons, but they may also be of a rotary, slide, lever, or other type.

[0035] In the above embodiment, the increase / decrease operation unit is configured as a rotary type, but it may also be configured as a push button type, a slide type, a lever type, etc. In the case of a rotary type, it may also be a variable resistance type volume.

[0036] In addition, in the above embodiment, the amount of water sprayed was adjusted by controlling the drive of the electric motor M, but the amount of water sprayed may also be adjusted by a proportional valve (which can change the amount of fluid passing through depending on a signal).

[0037] Furthermore, in the above embodiment, the starting output value of the electric motor M is increased or decreased according to the amount of rotation of the rotating body 23A, but the degree of increase or decrease in the starting output value of the electric motor M may be changed according to the rotation speed or rotation acceleration of the rotating body 23A. In other words, the degree of increase or decrease is changed to be greater as the rotation speed or rotation acceleration of the rotating body 23A is faster. [Explanation of symbols]

[0038] 1...watering vehicle, 2...operator's cab, 3...watering device (mounted equipment), 4...tank, 5...rear water discharge nozzle, 6...pump rotation speed sensor, 7...controller, 8...operation panel, 8A...operation panel, 8B...box, 9...ECU (engine control unit), 10...accelerator pedal, 11...vehicle speed sensor, 14...memory unit, 15...control unit, 16...meter panel, 16A...display screen, 16a...watering amount setting display unit, 16b...lane width setting display unit, 16c...vehicle speed synchronization display unit, 16d...vehicle speed display unit, 1 7...Start operation unit, 18...Switch, 18...Vehicle speed synchronization switch, 19...Pump constant rotation switch, 20...Manual switch, 18, 19, 20...Selection operation unit, 21...Lane width setting operation unit, 22...Screen display switching operation unit (setting change operation unit), 23...Rotation operation unit (increase / decrease operation unit), 23A...Rotating body, 24...Back switch, 25...Enter switch, 26, 27, 28...Lane width setting switch, 29...Display confirmation window, E / G...Engine, M...Electric motor, P...Sprinkler pump

Claims

1. A specially equipped vehicle equipped with a mounted object that operates by receiving power from a power source, A control unit is provided with a start operation unit for starting the mounted equipment, an increase / decrease operation unit that can increase / decrease the start output value of the mounted equipment when operating the start operation unit to make the start output value of the mounted equipment a target output value, and a memory unit that stores the start output value of the mounted equipment, the increase / decrease operation unit is a rotary encoder type rotation operation unit, and is configured so that when rotated in one direction, the starting output value increases, and when rotated in the other direction, the starting output value decreases; A specially equipped vehicle characterized in that, when the control unit operates the start operating unit to start the mounted object, the control unit starts the mounted object with the start output value stored in the memory unit, and increases or decreases the target output value of the mounted object depending on the rotation direction and amount of rotation of the rotation operating unit.

2. The specially equipped vehicle according to claim 1, characterized in that the start-up operation unit is provided with a selection operation unit for selecting from a plurality of operation modes with different control over the operation of the mounted object, the memory unit is configured to be able to store a start-up output value for each of the operation modes, and the control unit retrieves from the memory unit a start-up output value corresponding to the operation mode selected by the selection operation unit and starts the mounted object with the retrieved start-up output value.

3. 3. The specially equipped vehicle according to claim 2, further comprising a setting change operation unit for changing the setting of the starting output value for each of the operation modes.

4. The start operation unit includes a selection operation unit for selecting a plurality of operation modes with different control over the operation of the mounted object, the memory unit is configured to be able to store a start output value for each of the operation modes, and the control unit retrieves from the memory unit a start output value corresponding to the operation mode selected by the selection operation unit and starts the mounted object with the retrieved start output value, 2. The specially equipped vehicle according to claim 1, wherein the control unit notifies an operator of an operable operation mode among a plurality of operation modes when an error occurs after starting the mounted object.

5. A specially equipped vehicle as described in Claim 4, characterized in that the selection operation unit is provided with a flashing light-emitting diode, and when the error occurs, the control unit flashes the light-emitting diode of the selection operation unit, which operates an operable operating mode out of a plurality of operating modes, to alert the worker.

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