JPH0789784B2 - Input check device for work vehicle - Google Patents

Description

TECHNICAL FIELD The present invention relates to an input check device for checking an input of a detection means such as a sensor, and more specifically, to a depth of cut control and a cutting height by a group of detection means. The present invention relates to an input check device for a work vehicle equipped with each automatic control system for performing automatic control such as height control.

(B) Conventional technology In general, a work vehicle, such as a combine, has an automatic cutting height control that appropriately controls the ground height of the mowing section to avoid complicated operations by the operator during mowing work, and a shallow handling during threshing. Automatic control of the depth of handling, which controls the deep handling appropriately, and automatic control of the direction in which the traveling machine body is automatically steered along the grain row of grain are performed.

And, in order to perform each of these automatic controls, in the automatic cutting height control, the cutting height main switch, cutting height sensor, etc.
For automatic handling depth control, the handling depth sensor and the handling depth main sensor, which consist of the tip sensor and the stock sensor, and for the automatic direction control, the trimmed side sensor, the uncut side sensor, etc. Each switch is equipped.

(C) Problems to be Solved by the Invention In the above-mentioned conventional combine, when checking the input signals from the sensors and switches of each control system described above at the time of maintenance or shipping, Each sensor, switch, etc. is touched and inspected, but it is often impossible to determine which of the same control group is in a line with many sensors, switches, so the inspection work of the control system is very troublesome. In addition, there is a risk that it will not be performed reliably.

Therefore, the sensors and switches of each control group are individually operated by hand, and the buzzer sounds shortly when the input signal from the sensors and switches is normal.
It is conceivable to check the inputs of the sensors and switches in each control system, but this method also makes it possible to know which control system switch was checked while checking the inputs of many sensors and switches one by one. Gone
There is a risk that the sensors and switches of the same control system may be overlooked, and due to the lack of input check, defective sensors and the like may be shipped in the control system before shipment.

Therefore, according to the present invention, in the input check of individual sensors and switches, a single sound is emitted by a buzzer or the like in a normal case, and further, all the sensors and switches in the same control system perform input check. In this case, a display means such as a pilot lamp is arranged so that all of the sensors and switches in the control system can be recognized as being good, thereby providing an input check device that solves the above-mentioned problems. That is the purpose.

(D) Means for Solving the Problem The present invention has been made in view of the above circumstances, and for example, as shown in FIG. 1, a group of detection means (for example, 41, 46,
47, 49), in the working vehicle 1 equipped with each automatic control system for performing automatic control such as depth control, input check means 60 operated by operating the input check switch 56, and each automatic control. When the input means of the detection means (41, 46, 47, 49) is provided with a display means such as a pilot lamp (31) for each system, the detection means (41, 46, 47,4
When a change in any of the input signals from 9) is detected manually, a single sound is emitted by a buzzer or the like, and a group of detection means (41, 46,
47, 49) turn on the pilot lamp (31) related to the automatic control system when all the input check results are good.
It is characterized by being configured to display.

(E) Operation Based on the above-described configuration, when the input check of the detection means of each automatic control system is performed at the time of shipping or maintenance of the work vehicle 1, the operator turns on the input check switch 56 to operate the input check means 60. In this state, for example, it is checked that a single sound is emitted by manually operating a group of detection means 41, 46, 47, 49 ... Of the automatic depth control system, and individual detection means 41, 46, 47, 49 are checked. Make sure that… is normal.

Then, if all of the group of detection means 41, 46, 47, 49 ... Are checked and the input check results are all good, the pilot lamp 31 corresponding to the handling depth automatic control system is turned on and the operator detects the detection means. After the individual checks of 41, 46, 47 and 49, it is confirmed that the pilot lamp 31 is turned on and that there is no omission of the check of the handling depth automatic control system. Furthermore, similar input checks are performed in other automatic control systems.

(F) Example Hereinafter, an example of the present invention will be described with reference to the drawings.

As shown in FIGS. 6 and 7, the combine 1 has a traveling machine body 3 supported by a crawler 2 driven by a sprocket S, and one side of the traveling machine body 3 has a rear body. The engine 4 is mounted on the vehicle, the driver's seat 5 is arranged in the front, and the Glen tank 6 is installed between them, and the automatic threshing device 7 is provided on the other side of the traveling machine body 3.
Are arranged. Further, a pretreatment unit 8 is disposed in front of the traveling machine body 3 so as to be able to move up and down, and a mission case 9 is mounted below the traveling machine body 3 below the traveling machine body 3.

The driver's seat 5 is mounted on the fuselage frame 3a on the driver's seat frame.
A step surface 11 is fixed to a front portion on the frame 10, and a seat 13 is installed on a rear portion of the frame 10 via a seat frame. Further, an operation console 15 is erected above the front part of the driver's seat frame 10, and an upper surface of the operation console 15 is an operation panel 16.

Then, the operation panel 16 is provided with FIGS.
As shown in the figure, the monolever 17 is erected, and the side clutch lever 18 is rotatably installed.
Vehicle speed memory switch 19, Cutting height setting potentiometer 20, Cutting height position main switch 21, Handling depth manual switch 22, Handling depth automatic main switch 23, Direction automatic split switch 25, Direction automatic main switch 26, Horn / alarm stop A button 27, a flasher switch 29, a light switch 30, a working indicator lamp system 32 including various pilot lamps such as a deep pilot lamp 31, a direction pilot lamp 34, and a starter switch 33 are provided. Further, a hydraulic lever 36 and an FR stepless speed change lever 37 are arranged on a side operation panel 35 installed adjacent to the inside of the body of the driver's seat 5.

Further, as shown in FIG. 4 to FIG. 6, in the traveling machine body 3, various sensors such as the paddy sensors 39, 39, the handling depth sensor 40, the handling depth main sensor 41, and the pretreatment lift are provided at various places. Various switches such as a rotary switch 42, a traveling FR rotary switch, a reaping clutch switch, a working machine clutch switch, and a pedal clutch switch 55, a lever potentiometer, and a control unit are provided.

Further, as shown in FIG. 1, a CPU 45 of a microcomputer (hereinafter referred to as a microcomputer) 43 mounted on the traveling machine body 3 includes a handling depth automatic switch 46, a tip sensor 47 forming a handling depth sensor 40, and a stock source. Sensor 49, handling depth main sensor 41, mowing clutch switch 51, traveling FR rotary switch F
The side switch 52, the R side switch 53, the pedal clutch switch 55, the input check switch 56, etc. are connected through the input interface 57, and the output interface 59 is used to control the solenoid valves and the operating depth of each device. Each pilot lamp, such as the pilot lamp 31 and the direction pilot lamp 34, is connected.

Further, the CPU 45 is provided with an input check means 60, which operates when the input check switch 56 is turned on, and a group of detection means of each automatic control, for example, in the automatic handling depth control, the handling depth main. Sensor 41, automatic handling depth switch 46, tip sensor 47, stock sensor 49 and the like to determine the input signal respectively stored in the memory 61, the detection means 41,46,47, a group of these. When the input check results of 49 etc. are all good, the deep pilot lamp 31 is lit and displayed.

Next, the operation of this embodiment will be described with reference to FIGS. 3 (a) and 3 (b).
A description will be given according to the flowchart shown in FIG.

When the input check switch 56 is off, automatic control such as automatic depth control (S1) and automatic direction control (S2) is performed. When performing an input check at the time of shipping or maintenance of the combine 1 to confirm the quality of each automatic control system, first, the input check switch 56 is turned on. As a result, the input check is started (S3), and for example, a group of detection means provided in the handling depth automatic control system (the handling depth main sensor).
41, automatic handling depth switch 46, tip sensor 47, stock sensor 49
Etc.) is turned on / off or off / on, and the signal is input to the input check means 60. At this time, when the input check means 60 detects a change in the input signal from the on / off or off / on detection means, the input check means 60 beeps a single tone (S4), and the input from the detection means. A buzzer notifies the operator that the signal has changed. Furthermore, the memory 61 indicates that the detection means is normal.
Will be stored in (S5).

Then, when the input check of the detection means of the handling depth automatic control system is continued and it is determined that all of the group of detection means are normal (S6), the handling depth pilot lamp 31 is turned on and displayed (S7). ). Then, if all the detection means of another group of other automatic control systems, for example, the direction automatic control system are input checked and determined to be normal (S8), the direction pilot lamp 34
Is lit and displayed (S9).

In this way, the input check of a group of detection means of each automatic control system is sequentially performed, and the quality thereof is confirmed.

(G) Effect of the Invention As described above, according to the present invention, the input check switch 56 is operated to activate the input check means 60, and the detection means constituting each automatic control system is touched by hand. When the input signal to the input check means is changed, when the signal is normally transmitted to the input check means, the input check means is configured to emit a single sound to notify the operator, so that the checker detects it. Movement of means, ON signal and OF
It is possible to check all the functions such as F signal finely and confirm whether or not there is an abnormality in each detection means, and furthermore, a group of detection means that constitutes each automatic control system (for example, automatic handling depth control system). When the input check results of (41, 46, 47, 49 ...) Are all good, the automatic control system is configured so that the display means such as the pilot lamp (31) is turned on and displayed. It is possible to confirm the quality of each system as one group, and it is possible to surely check all the inputs without failing to check each detection means of the automatic control system and to simplify the work.

[Brief description of drawings]

FIG. 1 is a diagram showing a system configuration according to the present invention, FIG. 2 is a diagram showing switches and pilot lamps arranged on an operation panel, and FIGS. 3 (a) and 3 (b) are flow charts showing the operation of the present invention. 3 (c) is a flowchart showing the automatic handling depth control, and FIGS. 4, 5, and 6 are perspective views showing the sensors and switches arranged on the traveling machine body. FIG. 7 is an overall side view of the combine to which the present invention can be applied. 1 ... Work vehicle (combine), 31,34 ... Display means (handling pilot lamp, direction pilot lamp), 4
1,46,47,49 …… A group of detection means (main depth sensor,
Automatic depth control switch, tip sensor, stock sensor), 56 ...
Input check switch, 60 Input check means.

Claims (1)

[Claims] 1. A working vehicle comprising an automatic control system for automatically controlling a depth of handling and the like by a group of detection means, wherein an input check switch and an operating state are set when the input check switch is turned on. When it is detected that any one of the input signals from the detection means constituting each of the automatic control systems is changed manually, a single tone is emitted, and the changed input is stored in the memory to be normal.
Further, when all the input signals from the group of detection means constituting the predetermined automatic control system are changed and stored in the memory indicating that they are normal, the input check means for outputting a check good signal and the check of the input check means Based on a good signal
An input check device for a work vehicle, comprising: a display unit provided for each of the automatic control systems for displaying that the predetermined automatic control system is normal.