JP3904914B2 - Control device for work equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a control device for a farm work machine such as a combine or a tractor, a special work vehicle such as a crane truck, or various work machines such as a passenger car.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a farm machine such as a combiner has a fuel injection amount of an electronic governor that controls an output (load) of a sensor or a setter for transmitting a control amount signal as a control target to a control means, for example, an engine of a farm machine. A detection sensor (a rack position detection sensor for adjusting the position of the plunger for fuel injection), a vehicle height sensor for detecting the relative height of a pair of left and right traveling crawlers of the traveling portion with respect to the traveling machine body, and in response to the signal Sensors for detecting the operation amount of the controlled object, for example, input system devices such as a vehicle speed sensor for detecting the traveling speed of the agricultural working machine, and electromagnetics for adjusting the rack position of various actuators, for example, the fuel injection pump. A rack actuator such as a solenoid, and an output system device such as a hydraulic cylinder for adjusting the relative height of the traveling crawler. These respective output system devices are controlled by control means such as a microcomputer.
[0003]
Recently, a display device such as a liquid crystal display or a display instrument is provided in the vicinity of the operation unit of this type of farm work machine, and the operation status is displayed by displaying status information of each part of the farm work machine on these display devices. The operator can visually recognize (for example, the rotational speed and load of the engine, the vehicle speed, the amount of grain loaded in the grain tank, etc.).
[0004]
[Problems to be solved by the invention]
Conventionally, when diagnosing (inspecting) each output system device, the name of the output system device to be diagnosed is displayed on the screen of the liquid crystal display as described in, for example, Japanese Patent Laid-Open No. 10-23820. The control target (working machine such as a traveling unit or a working unit) that is displayed by a reporting unit such as a lamp or a buzzer, and that automatically operates the output system device and is driven by the output of the output system device. By checking the operation of each part) by an inspector such as an operator, the presence or absence of a failure of the output system device has been confirmed.
[0005]
For example, in a conventionally known combine, it is handled as an actuator for a cereal stock transporting device (device for transferring the stock of the harvested cereal stock to the feed chain) configured to be movable toward and away from the feed chain. When diagnosing a fault in the depth control motor, “Handling depth control motor” is displayed on the screen of the liquid crystal display, and the automatic depth control switch lamp is turned on. Then, by automatically operating the handling depth control motor, it is possible to determine whether or not the cereal stock transporter moves so as to move toward and away from the feed chain. The presence or absence of failure was confirmed.
[0006]
However, since the conventional configuration automatically operates the output system device to be diagnosed, it is difficult for an operator or other inspector to know when the control target driven by the output of the output system device starts to move. There was a problem. In addition, this problem may cause a risk that the control object operates without the inspector being aware of it, and should be improved in view of safety and the like.
[0007]
In order to perform failure diagnosis of output system equipment while alerting the inspector to this problem, the inspector operates the output system equipment to be diagnosed manually by operating a lever or switch. However, in this case, if the inspector inadvertently hits the lever, switch, etc., the control target related to the output system device is activated without the inspector being aware. There is still a room for improvement because there is still a risk that the controlled object will inadvertently operate.
[0008]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a control device that can safely perform failure diagnosis (inspection) of output system equipment.
[0009]
[Means for Solving the Problems]
  In order to solve this technical problem, the invention of claim 1 controls the input system devices such as sensors and setting devices provided in each part of the work machine, the output system devices such as actuators, and the control of each input / output system device. In a control device in a work machine provided with a control means for executing,Information on the normal mode for running on the road and performing various tasks is displayed.A plurality of operation means are provided near the screen of the display means, a position instruction means is provided on the screen, or both of them are provided, and the control means includes the operation means group and the position instruction means. Operate the output system equipment to be diagnosed in the fault diagnosis mode by manually operating at least two of the appropriate parts.During the operation, information on the output system device to be diagnosed is displayed on the screen of the display means, and an alarm buzzer connected to the control means notifiesIt is to control so that.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment embodying the present invention will be described with reference to the drawings (FIGS. 1 to 34) when applied to a combine as a work machine.
[0013]
1 to 31 show a first embodiment of the present invention. The combine traveling machine body 1 according to the first embodiment is configured to be movable up and down with respect to a pair of left and right traveling crawlers 2 and 2 via a traveling unit lifting and lowering driving means described later. As shown in FIG. 1, a threshing device 3 is mounted on the left side in the traveling direction of the traveling machine body 1. The pre-cutting processing device 4 disposed at the front portion of the traveling machine body 1 is supported by the traveling machine body 1 so as to be capable of moving up and down via a lifting frame 14, and between the lifting frame 14 and the traveling machine body 1. The hydraulic cylinder 9 for the cutting part as an actuator mounted on the actuator can be adjusted up and down.
[0014]
A clipper-type cutting blade device 5 is arranged at the lower part of the pre-cutting processing device 4, and a culm pulling device 6 for six strips is arranged at the front (see FIG. 3). Between the grain raising apparatus 6 and the front end of the feed chain 7 in the threshing apparatus 3, a grain conveying apparatus 8 is arranged, and the front part of the lower part of the grain raising apparatus 6 is directed in the traveling direction of the traveling machine body. The weeding body 10 which protrudes is attached. A driver's cab 11 is disposed at the front right side of the traveling machine body 1, and a grain tank 12 is disposed behind the driver's cab 11.
[0015]
As shown in FIG. 4, a part of the power from the engine 15 provided in the lower rear part of the cab 11 is transmitted through the auger clutch 16 to the bottom screw conveyor 17 in the grain tank 12 and the vertical and horizontal screws in the discharge auger 28. While the remaining power from the engine 15 is transmitted to the conveyors 18a and 18b, the hydraulic pump hydraulic motor type traveling drive unit 24, the handling cylinder 13 and the processing cylinder 20 of the threshing device 3, and the tang 21. Rotating and driving the first receiving screw conveyor 22a, the second receiving screw conveyor 22b, the feed chain 7, the whipping screw conveyor 23 to the grain tank 12, the peristaltic sorting mechanism 40, the waste cutter 27, etc. It is like that.
[0016]
The power to the pre-cutting processing device 4 is transmitted via the output shaft 26 from the travel drive unit 24 when synchronized with the traveling speed, and the branching power from the power branching mission 19 is transmitted via the one-way clutch 25 when not synchronized. Is transmitted.
[0017]
As shown in FIG.1 and FIG.2, the discharge | emission auger 28 for discharging | emitting the grain in the grain tank 12 outside the machine is the vertical cylinder 28a arrange | positioned in the rear end of the traveling body 1, and this vertical cylinder 28a. It consists of a horizontal cylinder 28b that is connected to the upper end so as to be vertically rotatable. A vertical screw conveyor 18a is housed in the vertical cylinder 28a, and a horizontal screw conveyor 18b is housed in the horizontal cylinder 28b.
[0018]
The vertical cylinder 28a is configured to be rotatable about a vertical axis by a drive motor 29 and a gear mechanism 30, and the horizontal cylinder 28b is an auger hydraulic cylinder 31 and a link mechanism 32 mounted between the vertical cylinder 28a. The vertical inclination angle can be changed.
[0019]
Then, the turning angle sensor 81 such as a rotary encoder provided in the drive motor 29 can detect the horizontal turning angle of the vertical cylinder 28 a and the horizontal turning position of the horizontal cylinder 28 b, and can be detected at the location of the auger hydraulic cylinder 31 or the link mechanism 32. A vertical rotation angle sensor 82 such as a potentiometer can be used to detect the vertical inclination angle of the horizontal cylinder 28b, and hence the height position of the discharge portion at the tip of the horizontal cylinder 28b.
[0020]
When the discharge auger 28 is not used, the middle part of the horizontal cylinder 28b is placed on a rest base 33 provided on the upper surface of the grain tank 12. A rest detector 34 such as a contact sensor for detecting whether or not the horizontal cylinder 28b is placed is attached to the rest base 33.
[0021]
Each of the left and right traveling crawlers 2 is wound around the outer periphery of a drive wheel 36 and a driven wheel 37 respectively disposed at the front and rear ends of the track frame 35 and a plurality of rolling wheels 38 disposed in the middle of the lower surface of the track frame 35. Each of the left and right track frames 35 and the traveling machine body 1 are connected to each other so that the traveling portion hydraulic cylinder 39a (39b) and the L-shaped front and rear levers provided at the front and rear positions of the track frame 35 are operated simultaneously. (Not shown) etc. are connected via a traveling part raising / lowering drive means.
[0022]
The left and right traveling unit hydraulic cylinders 39 a and 39 b are operated independently of each other so that the left and right traveling crawlers 2 can be raised and lowered independently with respect to the left and right of the traveling machine body 1.
[0023]
Therefore, when the piston rods of the hydraulic cylinders 39a, 39b for the left and right traveling parts are projected at the same time, the traveling machine body 1 moves upward (rises) from the left and right traveling crawlers 2, 2, and the traveling crawler 2 of the traveling machine body 1 , 2 relative height (vehicle height) increases. Conversely, when the piston rods are simultaneously retracted, the traveling machine body 1 approaches (lowers) the left and right traveling crawlers 2 and 2, and the relative height (vehicle height) of the traveling machine body 1 with respect to the traveling crawlers 2 and 2 is Lower.
[0024]
When the piston rod in the left traveling unit hydraulic cylinder 39a is protruded or the piston rod in the right traveling unit hydraulic cylinder 39b is retracted (or both operations are performed simultaneously), the right side The vehicle height of the traveling machine body 1 with respect to the traveling crawler 2 is lowered (the vehicle height of the traveling machine body 1 with respect to the left traveling crawler 2 is increased), and the traveling machine body 1 is inclined downwardly to the right.
[0025]
Conversely, when the piston rod in the right traveling unit hydraulic cylinder 39b is protruded, or when the piston rod in the left traveling unit hydraulic cylinder 39a is retracted (or both operations are performed simultaneously), The vehicle height of the traveling machine body 1 with respect to the left traveling crawler 2 is lowered (the vehicle height of the traveling machine body 1 with respect to the right traveling crawler 2 is increased), and the traveling machine body 1 is inclined downwardly to the left.
[0026]
A rotary encoder for detecting the relative height (vehicle height) of the traveling machine body 1 with respect to the left and right traveling crawlers 2 and 2 by detecting the protrusion amount of the piston rod of the hydraulic cylinders 39a and 39b for the left and right traveling units. The vehicle height sensors 41a and 41b are configured to interlock with each other via a connecting rod or a link mechanism (not shown) connected to the connecting rod. A tilt sensor 43 such as a pendulum type (gravity type) for detecting the left and right tilt angles of the traveling machine body 1 is disposed at an arbitrary position of the traveling machine body 1, for example, in the cab 11.
[0027]
In addition, as shown in FIG. 3, the ultrasonic sensors 44a and 44b for detecting the ground height between the pre-cutting processing device 4 and the field scene include a transmitter unit (horn unit) and a receiver unit of the receiver. Are arranged on brackets (not shown) provided on the back side of the grain raising device 6 on the left and right sides of the pre-cutting processing device 4.
[0028]
When the installation height of the ultrasonic sensors 44a and 44b and the installation height of the cutting blade device 5 are different, the ground height between the pre-cutting processing device 4 and the field scene is determined by a predetermined conversion from the detection values of the ultrasonic sensors 44a and 44b. You can ask for it.
[0029]
Further, the lifting position sensor 45 attached to the base end of the lifting frame 14 can determine the relative height between the traveling machine body 1 and the pre-cutting processing device 4 by detecting the rotation angle of the lifting frame 14. It is like that.
[0030]
As shown in FIG. 5, the hydraulic circuit for the hydraulic cylinders 9, 31, 39 a, 39 b is branched via a branch valve 47 that splits the pressure oil from the hydraulic pump 46. From the discharge path, pressure oil is fed to the first hydraulic circuit 48 to the auger hydraulic cylinder 31 and the left traveling section hydraulic cylinder 39a, and from the other discharge path, the cutting section hydraulic cylinder 9 and the right side The hydraulic oil is supplied to the second hydraulic circuit 49 for the traveling portion hydraulic cylinder 39b.
[0031]
The hydraulic circuits 48, 49 are connected to electromagnetic control valves 50, 51, 52, 53, check valves, relief valves, etc. for the respective hydraulic cylinders 9, 31, 39a, 39b.
[0032]
Next, the configuration of various operation levers and switches provided in the cab 11 will be described with reference to FIGS. 6 and 7. A steering round handle 58 for steering the traveling machine body 1 is attached to a handle shaft (not shown) protruding upward from the front column cover body 57 in front of the driver seat 56. On the right side surface of the front column cover body 57, an accelerator lever 59 that can be rotated in the front-rear direction is provided.
[0033]
A liquid crystal display device 60 is attached to the upper end portion of the front column cover body 57 so as to be positioned on the inner diameter side of a substantially semicircular handle wheel 58a in the steering round handle 58 in plan view.
[0034]
Since the liquid crystal display device 60 is fixed only to the front column cover body 57 and is not connected to the steering round handle 58, the liquid crystal display device 60 does not move even if the steering round handle 58 is rotated. There is no such thing. Further, since the upper surface (screen) of the liquid crystal display device 60 is positioned below the handle wheel 58a of the steering round handle 58, the liquid crystal display device 60 is not touched even if the steering round handle 58 is rotated. It is supposed not to.
[0035]
On the left side of the driver's seat 56, a long side column 61 is disposed in the front and rear, and a vehicle height adjusting lever 62 that can manually change and adjust the vehicle height of the traveling machine body 1 is provided at a front end portion of the side column 61. A vehicle height control changeover switch 63 for switching between automatic operation and manual operation in vehicle height control, and an inclination setting device 64 for setting the left and right inclination angle of the traveling machine body 1 are arranged.
[0036]
On the side column 61, the rear part of the vehicle height adjusting lever 62 and the like are set to a main transmission lever 65 for continuously changing the vehicle speed, and the output and the rotational speed of the traveling drive unit 24 are set and maintained within a predetermined range according to the working state. The auxiliary transmission lever 66 is arranged in parallel to the left and right, and each of the levers 65 and 66 is configured to be rotatable forward and backward.
[0037]
Further, on the side column 61, various switches such as a cutting automatic elevating switch 131 and the like are disposed on the right side of the auxiliary transmission lever 66, and on the rear part of the auxiliary transmission lever 66, a cutting operation for cutting operation is performed. A lever 67 and a threshing lever 68 for threshing work are arranged so as to be able to rotate back and forth.
[0038]
The harvesting lever 67 is configured such that when it is tilted forward, the harvesting switch 134 for performing the harvesting operation is turned off, and when it is tilted backward, the harvesting switch 134 is turned on and actuated. Similarly, the threshing lever 68 is configured such that when the threshing lever 68 is tilted forward, the threshing switch 135 for executing the threshing operation is turned off, and when it is tilted backward, the threshing switch 135 is activated.
[0039]
An auto lift switch 137 that forcibly raises the pre-cutting processing device 4 and an autoset switch that forcibly lowers the pre-cutting processing device 4 to a predetermined cutting height are provided on the right side surface of the grip 65a of the main transmission lever 65. 138. On the right side of the front side surface of the grip portion 65a, a cutting lift lever 139 for manually operating the lifting and lowering movement of the pre-cutting processing device 4 is arranged, and on the left side, the handling depth position of the cereal is manually set. A handle depth adjusting lever 140 that can be changed and adjusted is disposed.
[0040]
As shown in FIGS. 6 and 7, the liquid crystal display device 60 includes a liquid crystal panel 60b as a monochrome dot matrix type display means capable of displaying information such as characters, symbols and images, and a case 60a for housing the liquid crystal panel 60b. It is configured. The liquid crystal panel 60b may be a color type.
[0041]
On the outer peripheral side of the liquid crystal panel 60b on the surface of the case 60a, a work lamp 70 that is turned on when the power switch 142 for turning on and off the entire combiner is turned on and the left and right for switching the screen display, etc. Two switches 71, 72, 73, 74 are provided. Each of these switches 71 to 74 is a so-called push switch that generates one ON pulse signal when the switch is pressed once, and is of a non-locking type. Each of these switches 71 to 74 corresponds to the operating means in the present invention.
[0042]
In the case 60a, on the back side of the liquid crystal panel 60b, a CAN controller C5 that controls to display on the screen of the liquid crystal panel 60b image information corresponding to the mode being executed among the various combine modes. To be decorated.
[0043]
Next, the overall operation of the combine such as the vehicle speed, posture and height of the traveling machine 1, the discharge position of the discharge auger 28, and the like are controlled, and image information corresponding to the mode being executed (the state of the combine operation) is displayed on the liquid crystal panel 60b. The structure of the control means for controlling to display on the screen will be described.
[0044]
As shown in FIG. 8, an electronic control device 75 such as a microcomputer as a control means includes a plurality of (in the first embodiment, five) CAN controllers C1, C2, C3, C4, and C5, and a space between them. The CAN communication bus 76 is connected to each other. Each of the CAN controllers C1 and C5 includes a resistor (not shown) as a termination resistor that suppresses reflection of control data.
[0045]
Each of the CAN controllers C1 to C5 includes a CPU 77 for executing various arithmetic processes and controls, an EEPROM 78 as a nonvolatile memory for storing each control program to be described later, a RAM 79 for temporarily storing various data, a clock as a timer function, An input / output interface (not shown) that transmits data by connecting to various input and output devices is provided.
[0046]
In each of the EEPROMs 78 of the CAN controllers C1 to C5, corresponding application control programs (software) S1, S2, S3, S4, and S5 are stored (stored) in advance (see FIG. 8).
[0047]
The application control program S1 is a control program that activates various actuators (for example, the hydraulic cylinder 9 for the cutting part) of the threshing device 3 and the pre-cutting processing apparatus 4, and the application control program S2 is the hydraulic cylinder 9 for the cutting part and the traveling machine body. The left and right traveling unit hydraulic cylinders 39a, 39b are operated to provide a control program for controlling the cutting height of the pre-cutting processing device 4 and the attitude and vehicle height control of the traveling machine body 1.
[0048]
The application control program S3 is a control program for controlling the output of the engine 15, and the application control program S4 is a control program for controlling the operation of the drive motor 29 and the auger hydraulic cylinder 31 in the discharge auger 28.
[0049]
The application control program S5 manages and controls input / output of all input / output devices connected to the controllers C1 to C5, and displays image information corresponding to the mode being executed on the screen of the liquid crystal panel 60b. It is assumed that the control program controls the control.
[0050]
Each EEPROM 78 also stores in advance a communication control program necessary for CAN communication and an input / output control program for transmitting control data (information) between input / output devices. In contrast, the input / output control program is layered.
[0051]
As a guide, each CAN controller C1 to C5 is configured so that the harness length of the input / output system equipment is combined as short as possible to control them, and in each controller location (not shown) Stored in
[0052]
For example, the CAN controller C1 is installed on the lower surface side of the floor board in the cab 11 (see FIGS. 1 to 3). The input interface of the CAN controller C1 includes, as input system devices, a lift position sensor 45, a culm transport sensor 96 that detects whether or not the pre-harvest processing device 4 is transporting the chopped cereal, and the chopped cereal being transported Cedar length sensor 97, handling depth sensor 98, auger clutch motor switch 99, ultrasonic sensors 44a and 44b, vehicle speed sensor 100, second receiving screw conveyor rotation sensor 101, steering round handle limit The switches 102 and the like are connected to each other (see FIG. 9).
[0053]
The output interface of the CAN controller C1 includes, as output system devices, a control circuit unit 103 such as a relay unit in a handling depth control motor, a control circuit unit 104 such as a relay unit in an auger clutch motor, and an electromagnetic for driving a threshing clutch. Solenoids 105 and the like are connected to each other (see FIG. 9).
[0054]
The CAN controller C2 is installed at a location near the operator's cab 11 above the cutting pretreatment device 4 (see FIGS. 1 to 3). The input interface of the CAN controller C2 includes, as input system devices, a fuel sensor 106, an inclination sensor 43, vehicle height sensors 41a and 41b, a soot flow rate sensor 107 in a flown plate of the sorting device, and presence or absence of soot in each part of the sorting device籾 sensor 108 for detecting spillage, squeezing cutter clogging sensor 109, turning angle sensor 81, discharge auger tip operating unit 110 provided at the tip of the horizontal tube 28b for operating the horizontal turning of the discharge auger 28, and the vertical rotation angle sensor 82, an auger clutch sensor 111, a discharge auger overload sensor 112, a peristaltic sorting overload sensor 113, a handling cylinder rotation sensor 114, a processing cylinder rotation sensor 115, and the like are connected (see FIG. 10).
[0055]
The output interface of the CAN controller C2 includes, as output system devices, a peristaltic sorting drive motor 116, an FC clutch drive circuit unit 117, a drive motor 29 for horizontally turning the vertical cylinder 28a of the discharge auger 28, a discharge auger brake 118, an auger The electromagnetic solenoid 51a of the electromagnetic control valve 51 with respect to the hydraulic cylinder 31, the electromagnetic solenoid 52a of the electromagnetic control valve 52 with respect to the hydraulic cylinder 39a on the left side of the traveling machine body 1, and the electromagnetic with respect to the hydraulic cylinder 39b on the right side of the traveling machine body 1 An electromagnetic solenoid 53a of the control valve 53, an electromagnetic solenoid 50a of the electromagnetic control valve 50 with respect to the hydraulic cylinder 9 for cutting part, and the like are respectively connected (see FIG. 10).
[0056]
As shown in FIGS. 1 to 3, the CAN controller C <b> 3 is installed in the rear part of the driver seat 56 in the cab 11. An input interface of the CAN controller C3 includes, as input system equipment, an engine speed sensor 119, an engine oil amount sensor 120, an engine water temperature sensor 121, and a fuel injection pump rack with an electronic governor that controls the output (load) of the engine 15. A fuel injection pump rack position sensor 122 for detecting the position, an engine starter switch 123, an auger set position dial 124 for storing the horizontal turning position of the discharge auger 28 in advance, and a horizontal turning of the discharge auger 28 provided in the cab 11 Are connected to a discharge auger operation section 125, a cutting clutch motor limit switch 126, and the like (see FIG. 11).
[0057]
  The output interface of the CAN controller C3 includes, as output system equipment, a fuel injection pump rack actuator 127 for adjusting the rack position of the fuel injection pump so that the rotational speed of the engine 15 becomes a predetermined rotational speed, and an engine starter relay 128. And an alarm buzzer 129 as a notification means are connected to each other (see FIG. 11)..
[0058]
The CAN controller C4 is installed in the side column 61 of the cab 11 (see FIGS. 1 to 3). The input interface of the CAN controller C4 includes, as input devices, an accelerator lever sensor 59a for detecting the operation position of the accelerator lever 59, a vehicle height adjustment lever 62, a vehicle height control changeover switch 63, a tilt setting device 64, a depth of handling. Automatic control switch 130, automatic harvesting lifting / lowering switch 131, harvesting auto clutch switch 132 for automatically transmitting power to the harvesting pretreatment device 4 when the harvesting pretreatment device 4 is lowered to a predetermined harvesting height, harvesting switch 134, threshing Switch 135, sorting adjustment dial 136 for adjusting the grain sorting state in the sorting device, auto lift switch 137, auto set switch 138, cutting lift lever 139, handling depth adjusting lever 140, auxiliary transmission lever 66, traveling machine body Reverse switch 141 for moving 1 backward, Switch 142 and the like are connected (see FIG. 12).
[0059]
The output interface of the CAN controller C4 includes, as an output system device, a vehicle height control changeover switch lamp 143 that lights up when the vehicle height control is switched to automatic operation, and a handling that lights up when the handling depth control is switched to automatic operation. An automatic depth control switch lamp 144 or the like is connected (see FIG. 12).
[0060]
In the input interface of the CAN controller C5 built in the case 60a, a cursor up switch 71 for moving the cursor on the screen of the liquid crystal panel 60b upward, and a cursor down movement for moving the screen downward. A switch 72, first and second changeover switches 73, 74, and the like for switching the screen display of the liquid crystal panel 60b are connected (see FIG. 13).
[0061]
The output interface of the CAN controller C5 is connected with a liquid crystal panel 60b as display means, a work lamp 70 that is turned on when the power switch 142 is turned on and off for the entire combiner, and the like (FIG. 13).
[0062]
Next, the mode switching control by the CAN controller C5 will be described. As shown in FIG. 14, the combine mode (operation state) includes an initial mode M1, a normal mode M2 for running on the road and various operations, an alarm display mode M3 for notifying an abnormal state of each part of the combine, a detection error, and the like. There are roughly divided into an error display mode M5 for notifying the content of an error and an environment setting mode M4 for setting automatic traveling control and the like.
[0063]
The normal mode M2 includes a non-work mode M2a for running on the road and a work mode M2b for cutting and threshing, and a maintenance mode M6 that can be shifted only from the non-work mode M2a is also set (FIG. 15). reference).
[0064]
First, when the power switch 142 is turned on and operated, the initial mode M1 is activated and the initial image information shown in FIG. 16 is displayed on the screen of the liquid crystal panel 60b.
[0065]
Next, a preset time (10 seconds in the first embodiment) elapses in the EEPROM 78 of the CAN controller C5, or the rotation speed of the engine 15 is equal to or higher than the preset rotation speed (240 rpm in the first embodiment). Then, the mode automatically shifts to the non-working mode M2a in the normal mode M2 (see FIG. 15), and the display on the screen of the liquid crystal panel 60b changes from the initial image information to an image such as the engine speed and the remaining amount of fuel. Transition to information (image data corresponding to the non-working mode M2a) (see FIG. 17).
[0066]
In this case, on the screen of the liquid crystal panel 60b, as image information of the non-working mode M2a, a speedometer 85 indicating the traveling speed (vehicle speed) of the traveling machine body 1, a substantially L-shaped rotational speed graph 86 indicating the engine rotational speed, A tank monitor 87 that informs the amount of fir in the grain tank 12, a fuel meter 88 that informs the remaining amount of fuel, a sub-transmission monitor 89 that informs the setting state of the sub-transmission lever 66, and the speed setting state of the pre-cutting processing device 4 A cutting speed change monitor 90 for notifying and an integrated value monitor 91 for indicating a value obtained by integrating the operating time of the engine 15 and the like are displayed.
[0067]
During execution of the initial mode M1, when the threshing clutch for power transmission to the threshing device 3 is engaged, that is, when the threshing switch 135 is activated, the alarm buzzer is switched to an alarm display mode M3 described later. 129 is sounded, and the image information of the handling cylinder is switched and displayed on the screen of the liquid crystal panel 60b (see FIG. 21A). Although this does not mean that the handling cylinder is actually clogged, the operator can be notified that the threshing clutch is engaged by displaying the image information of the handling cylinder on the screen of the liquid crystal panel 60b instead. Thus, the engine is prevented from starting in this state.
[0068]
Then, when the threshing switch 135 is turned off, the alarm buzzer 129 stops ringing and shifts to the non-work mode M2a, and the display on the screen of the liquid crystal panel 60b returns to the image information of the non-work mode M2a (see FIG. 17). .
[0069]
As shown in FIG. 15, when the threshing switch 135 is turned on and operated during the execution of the non-work mode M2a in the normal mode M2, the operation mode M2b is entered, and the display of the screen showing the image information in FIG. And image information such as the remaining amount of fuel (image data corresponding to the work mode M2b) (see FIG. 18). The image information of the work mode M2b is different from the image information of the non-work mode M2a only in that a load graph 86 ′ indicating the engine load is displayed in the display area of the engine speed graph 86 indicating the engine speed. Others are the same as in the non-working mode M2a.
[0070]
Then, when the threshing switch 135 is turned off, the non-work mode M2a is entered, and the image information of the non-work mode M2a is switched and displayed on the screen of the liquid crystal panel 60b.
[0071]
During the execution of the normal mode M2 (non-work mode M2a or work mode M2b), when the cursor movement switch 71 provided on the liquid crystal display device 60 is pressed for an appropriate time (5 seconds in the first embodiment) or longer, the liquid crystal panel The display of the integrated value monitor 91 on the screen 60b is switched to the integrated value monitor 91 'for the cutting work time (see FIG. 19). The harvesting work time is obtained by integrating the time when the engine speed is equal to or lower than a preset engine speed (1000 rpm in the first embodiment) and the harvesting clutch is in the engaged state (the harvesting switch 134 is in the on state). , Substantially represents the time of cutting work. In this state, when the cursor downward movement switch 72 is pressed for an appropriate time or more, the integrated value of the mowing work time is reset to zero.
[0072]
Then, when the cursor up switch 71 is pressed again for an appropriate time (5 seconds in the first embodiment) or more, the display of the integrated value monitor 91 'for the cutting time on the screen returns to the integrated value monitor 91 for the engine operating time. . When the image information of the normal mode M2 is displayed on the screen of the liquid crystal panel 60b for the first time after the power is turned on, the engine operating time integrated value monitor 91 is always displayed on the screen.
[0073]
As shown in FIG. 14, in the normal mode M2, when abnormal data outside the control range allowed in each part of the combine occurs, the screen display of the liquid crystal panel 60b is changed from the image information of the normal mode M2 to the abnormality. Transition is made to the image information of the abnormal state related to the data (see FIGS. 20 to 22), that is, the image information of the alarm display mode M3. When various types of abnormal data occur, the work lamp 70 (see FIG. 7) provided in the case 60a of the liquid crystal display device 60 is turned on.
[0074]
The abnormality information in the first embodiment includes detailed information 151 (see FIG. 20A, etc.) indicating details of the contents of the abnormal state and the position where the abnormality occurred, and treatment information 152 (FIG. 20B, etc.) for this abnormal state. Both of these pieces of information are individually displayed on the screen of the liquid crystal panel 60b. The switching display of the both information 151 and 152 on the screen is executed by pressing the second switch 73.
[0075]
As shown in FIG. 20A and the like, the detailed information 151 includes easy-to-understand symbols and symbol information 153 such as an anomaly-occurring device, character information 154 indicating the name of the anomaly-generating device, and the like. It consists of a schematic diagram 155 of the entire combine as graphic information. Symbol and character information 153 and 154 are displayed on the left side of the screen, and a schematic diagram 155 of the combine is displayed on the right side of the screen.
[0076]
In addition, an arrow 156 extending from the symbol and character information 153 and 154 indicates a region corresponding to an abnormality occurrence position (a part where an abnormality occurrence device or the like is mounted) in the schematic diagram 155. Here, in the screen of FIG. 20 (a), detailed information on the culm clogging of the culm pulling device 6 is displayed, so the arrow 156 indicates the pre-cutting processing device 4 in which the culm pulling device 6 is disposed. Pointing to the area.
[0077]
With this configuration, even an operator who is not familiar with the structure of the combine can easily visually grasp the contents of the abnormal state and the position where the abnormality occurred, and the operator can save the trouble of reviewing the maintenance manual, for example. In addition, the repair of the position where the abnormality occurred can be performed quickly and accurately.
[0078]
The abnormal state to be notified in the alarm display mode M3 is high in danger, so an emergency state in which the engine 15 is forcibly stopped, an abnormal state in the work system typified by a clogged cylinder, and an engine system typified by an abnormal engine oil pressure. It is roughly divided into three abnormal states.
[0079]
For example, when abnormal data related to an emergency state (hereinafter referred to as emergency data) occurs, the image information of the emergency state (hereinafter referred to as emergency information) is switched and displayed on the screen of the liquid crystal panel 60b (see FIG. 20). The engine 15 is forcibly stopped.
[0080]
As an emergency state of the combine, the above-described cereal mashing device 6 cereal scum clogging, the cereal mashing clogging device 8 cereal scum clogging, the drainage cutter 27 clogging, and the binding device (not shown) binding string exhaustion When the detected emergency data is related to the culm pulling device 6 or the culm transporting device 8, the alarm buzzer 129 is sounded or stopped according to the on / off state of the cutting switch 134. When the emergency data is about the waste cutter 27 or the binding device (not shown), the alarm buzzer 129 is sounded or stopped according to the on / off state of the threshing switch 135.
[0081]
Further, when emergency data is detected, only emergency information related to the emergency data is displayed on the screen of the liquid crystal panel 60b, and even if other abnormal data is detected together, the other abnormal data is related. It does not switch to abnormality information. In this case, it is impossible to shift to another mode unless the power switch 142 is turned off once.
[0082]
With this control, for example, when there is a high risk that the combine will be damaged or failed, or when an emergency situation occurs that would seriously hinder operations such as harvesting, the operator will receive this emergency information for other purposes. Since it is possible to grasp prioritizing abnormal information, cutting and threshing can be performed safely.
[0083]
When a plurality of emergency data is detected, the emergency information related to the emergency data detected later is switched from the previous emergency information after the previous emergency state is resolved and displayed on the screen of the liquid crystal panel 60b. It is displayed.
[0084]
When work system abnormal data occurs, the image information of the abnormal state related to the work system abnormal data (see FIG. 21) is switched and displayed on the screen of the liquid crystal panel 60b instead of the image information of the normal mode M2. . Here, the abnormal state of the work system is a threshing relationship in the example of the combine. The handling cylinder 13 is clogged, the processing cylinder 20 is clogged, the second receiving screw conveyor 22b is clogged, and the peristaltic sorting mechanism 40 There are five modes of clogging and the full amount of rice in the grain tank 12.
[0085]
If only the abnormal state of the work system has occurred, the abnormal state is resolved, the alarm display mode M3 is restored to the normal mode M2, and the image information of the normal mode M2 is displayed on the screen of the liquid crystal panel 60b. Is displayed. At this time, the work lamp 70 (see FIG. 7) of the liquid crystal display device 60 is turned off.
[0086]
Even when a plurality of work system abnormal data are detected, as in the case of the emergency data described above, the abnormal information related to the work system abnormal data detected later has been resolved from the abnormal state of the previous work system. After that, it is switched from the abnormal information of the previous work system and displayed on the screen of the liquid crystal panel 60b.
[0087]
When engine system abnormal data occurs, the image information of the abnormal state related to the engine system abnormal data (see FIG. 22) is switched and displayed on the screen of the liquid crystal panel 60b instead of the image information of the normal mode M2. In addition, the alarm buzzer 129 sounds. Here, there are four types of abnormal states of the engine system: engine oil pressure abnormality, engine cooling water temperature abnormality, charging circuit related abnormality (charging abnormality), and air cleaner abnormality (clogging).
[0088]
When only an abnormal state of the engine system has occurred, by pressing the first changeover switch 73, various information is switched and displayed on the screen of the liquid crystal panel 60b between the alarm display mode M3 and the normal mode M2. It can be done.
[0089]
That is, when only an abnormal state of the engine system has occurred, when the first changeover switch 73 is pressed once, the mode shifts to the normal mode M2, and the screen display of the liquid crystal panel 60b is changed from the abnormal information of the engine system. Transition to the image information of the normal mode M2.
[0090]
In this case, the alarm buzzer 129 stops ringing as the first changeover switch 73 is pressed, and the “alarm” character mark 93 is displayed on the right side of the sub-shift monitor 89 on the screen showing the image information in the normal mode M2. It blinks (see FIG. 23). By blinking the warning sign 93, the operator can visually recognize that an abnormal state of the engine system has occurred even on the screen showing the image information of the normal mode M2, and can call the operator's attention.
[0091]
When the first changeover switch 73 is pressed again, the alarm display mode M3 is entered, engine abnormality information is switched and displayed on the screen of the liquid crystal panel 60b, and the alarm buzzer 129 sounds again.
[0092]
When the abnormal state of the engine system is resolved, the alarm display mode M3 returns to the normal mode M2, the alarm buzzer 129 is stopped, and the image information of the normal mode M2 is switched and displayed on the screen of the liquid crystal panel 60b. At this time, the work lamp 70 (see FIG. 7) of the liquid crystal display device 60 is turned off.
[0093]
When an abnormal state of the work system and an abnormal state of the engine system occur, or when only a plurality of abnormal states of the engine system occur, each abnormal state is sequentially forwarded by time (5 seconds in the first embodiment) as appropriate. Are switched and displayed on the screen of the liquid crystal panel 60b. When an abnormal state of the work system is confirmed, even if the first changeover switch 73 is pressed, the screen display on the liquid crystal panel 60b is not switched to the image information of the normal mode M2.
[0094]
By controlling in this way, even an operator who is not very familiar with the structure of the combine can accurately confirm all the abnormality information as a result of sequentially grasping the contents of the abnormality information and the position where the abnormality has occurred along with the switching display. . Therefore, there is no possibility of overlooking the occurrence of these abnormalities.
[0095]
In addition, even if the operator does not perform a switching operation such as a switch, the display of the screen of the liquid crystal panel 60b is automatically switched, so that the operator can operate the combine without having to worry about other things. It is possible to easily check the abnormal information that occurred.
[0096]
Further, the screen of the liquid crystal panel 60b is no longer displayed from the state in which the abnormal state has been eliminated, and the remaining abnormal information is sequentially switched and displayed every time as appropriate until all the abnormal states that have occurred are resolved. It is supposed to repeat. Therefore, the operator can easily grasp the state of elimination of the abnormal state.
[0097]
As shown in FIG. 14, when various errors such as detection errors of sensors and setting devices and operation errors of various actuators occur during execution of the normal mode M2 (non-work mode M2a or work mode M2b). In addition, the “error” character indicator 92 is blinkingly displayed on the right side of the auxiliary transmission monitor 89 on the screen of the liquid crystal panel 60b (see FIG. 24). By blinking the error indicator 92, the operator can quickly recognize that an error has occurred on the screen showing the image information of the normal mode M2.
[0098]
In this state, when the first changeover switch 73 is pressed for an appropriate time (5 seconds in the first embodiment) or longer, the display shifts to the error display mode M5, and the display on the screen of the liquid crystal panel 60b displays the content of the error that has occurred at this time. It changes to the image information shown (refer Fig.25 (a)-(d)). Thereby, since the operator can confirm the details of the error when he / she desires, the working efficiency is improved and the safety during the driving operation is also increased.
[0099]
Then, when the first changeover switch 73 is pressed once again or the error is resolved, the error display mode M5 returns to the normal mode M2, and the image information of the normal mode M2 is displayed on the screen of the liquid crystal panel 60b. Is displayed.
[0100]
When the second changeover switch 74 is pressed once during the execution of the normal mode M2, the screen shifts to the environment setting mode M4, and the display on the liquid crystal panel 60b changes from the image information of the normal mode M2 to the environment setting mode M4. Transition to image information (see FIG. 26). When the second changeover switch 74 is pressed again, the mode is switched to the normal mode M2, and the display on the liquid crystal panel 60b returns from the image information in the environment setting mode M4 to the image information in the normal mode M2. In the first embodiment, since the frequency of executing the environment setting mode M4 is low, a second changeover switch 74 is provided separately from the first changeover switch 73 so that the environment setting mode M4 is not inadvertently operated. It has become.
[0101]
Next, the control mode of the maintenance mode M6 will be described with reference to the inter-mode transition diagram of FIG. 15 and the screen diagrams of FIGS.
[0102]
As shown in FIG. 15, during the execution of the non-work mode M2a, the engine speed is equal to or lower than a preset speed (1500 rpm in the first embodiment) and the vehicle speed is stopped (the vehicle speed is 0. 1 in the first embodiment). 03 m / s or less), the two cursor movement switches 71 and 72 provided on the case 60a are simultaneously operated for an appropriate time (1 second in the first embodiment) at the same time, and then continuously operated. When the switches 71 to 74 are simultaneously operated for an appropriate period of time (5 seconds in the first embodiment) or longer, the operation shifts to the maintenance mode M6 with the sound of the alarm buzzer 129, and the screen in the liquid crystal panel 60b is selected in the maintenance mode M6. Menu image information (hereinafter referred to as selection menu information) is switched and displayed (see FIG. 27). The alarm buzzer 129 stops sounding when the screen is switched.
[0103]
In this maintenance mode M6, not only the failure diagnosis of each input / output system device (details will be described later) but also the control range of these devices can be set and changed. Therefore, the maintenance mode M6 must be followed unless the complicated procedure described above is followed. The setting is prevented from being changed due to mischief or erroneous operation. In the maintenance mode M6, the mode is set so that the mode cannot be shifted to other modes M1 to M5 unless the power switch 142 is turned off once.
[0104]
The maintenance mode M6 includes an initial setting mode for performing various settings such as a cutting height position when various sensors and CAN controllers C1 to C5 are replaced, and a checker as a failure diagnosis mode for diagnosing the presence or absence of a failure of an input / output system device. There are four modes: a mode, a reset mode for erasing past maintenance information, and an edit mode for rewriting the stored contents of the EEPROM 78 of each CAN controller C1 to C5.
[0105]
The screen of FIG. 27 showing the selection menu information includes character information 161 to 164 of “initial setting mode”, “checker mode”, “maintenance information reset” and “EEPROM edit”, and a cursor 160 indicating the character information to be selected. And are displayed.
[0106]
In addition, operation instruction indicators 165, 166, 167, and 168 indicating the functions of the switches 71, 72, 73, and 74 as operation means are displayed at four corners of the screen (operation instruction). (See FIGS. 26 and 31 for the label 168).
[0107]
Each of these operation instruction indicators 165 to 168 is a simplified representation of the operation content when the switches 71 to 74 corresponding to the display positions are pressed, with characters, figures, and the like. For example, referring to the screen of FIG. 27, when the cursor up switch 71 corresponding to the operation instruction indicator 165 (upward arrow) in the upper left corner of the screen is pressed, the cursor 160 moves upward in the screen, and the operation in the lower left corner is performed. When the cursor downward movement switch 72 corresponding to the instruction mark 166 (downward arrow) is pressed, the cursor 160 moves downward in the screen. In this case, no operation is performed even if the second changeover switch 74 is pressed, so that the operation instruction mark 168 for the second changeover switch 74 is not displayed.
[0108]
The character information 161 to 164 are displayed in reverse when they are pointed by the cursor 160. Then, for example, as shown in FIG. 27, the first change-over switch 73 corresponding to the operation instruction indicator 167 (character “decision”) at the lower right corner of the screen in the state where the character information 162 of “checker mode” is highlighted. When is pressed, the checker mode is selected (determined), and the display of the screen showing the selected menu information transitions to image information of the checker menu (hereinafter referred to as checker menu information) (FIGS. 28A to 28A). c)).
[0109]
The checker menu information is classified into thirteen items mainly according to control methods such as depth control and vehicle height level control. As shown in FIGS. Depending on the number of pixels that can be displayed on the screen of the liquid crystal panel 60b, the screen is displayed on one screen or divided into two or more (in the first embodiment, it is divided into three).
[0110]
The switching display of a plurality of menu information on the screen (see FIG. 28) is similar to the switch operation in the selection menu described above, by pressing the cursor downward movement switch 72 to move the cursor 160 downward in the screen. This is executed by pressing the first changeover switch 73 in a state where the character information 169 of “to next (or 1/3) screen” indicated by the cursor 160 is highlighted.
[0111]
The above items are headings (indexes) for input / output devices grouped according to control methods such as depth-of-handling control and vehicle height level control, and an operator or other inspector can check the characters of the devices to be diagnosed. This is a clue to find the display.
[0112]
Then, for example, as shown in FIG. 28 (a), when the first changeover switch 73 is pressed in a state where the character information of “auger control” is highlighted, the image information of the auger control menu is displayed on the screen of the liquid crystal panel 60b. Is switched and displayed (see FIG. 29).
[0113]
As image information of the auger control menu, character information 171 to 178 of input system devices among the devices to be diagnosed, that is, “discharge auger operation section” (171), “discharge auger tip operation section” (172), “auger set” "Position dial" (173), "turning angle sensor" (174), "vertical turning angle sensor" (175), "auger clutch motor switch" (176), "auger clutch sensor" (177), and "discharge auger" "Overload sensor" (178), character information 179 to 182 of output system equipment, that is, "auger clutch motor control circuit section" (179), "discharge auger brake" (180), "drive motor" (181), and "Auger electromagnetic solenoid" (182).
[0114]
The list of the character information groups 171 to 182 is displayed on one screen or divided into two or more according to the number of pixels that can be displayed on the screen of the liquid crystal panel 60b, as in the case of the checker menu information described above. This is divided into three in the first embodiment (see FIG. 29). Note that the switching display of a plurality of menu information on the screen (see FIG. 29) is executed in the same manner as the switch operation in the selection menu and checker menu described above.
[0115]
Next, for example, as shown in FIG. 29A, when the first selector switch 73 is pressed in a state where the character information 173 of the “auger set position dial” is highlighted, an auger set position which is one of the input system devices is displayed. The dial 124 is selected (determined), and the diagnostic information of the auger set position dial 124 is switched and displayed on the screen of the liquid crystal panel 60b (see FIG. 30).
[0116]
In this case, on the screen of the liquid crystal panel 60b, the diagnosis target device name 183 (“auger set position dial” in FIG. 30), the diagnosis result 184 such as the detected voltage and rotation speed, the normal control range, etc. And a detected CAN controller name ("Column Controller (C4)" in FIG. 30) are displayed.
[0117]
Further, only the operation instruction indicator 167 for the first changeover switch 73 among the operation instruction indicators 165 to 168 is displayed on the screen (see FIG. 30), and when the first changeover switch 73 is pressed, the liquid crystal panel 60b is displayed. The screen display returns to the selected menu information (see FIG. 27).
[0118]
By controlling in this way, even an inspector such as an operator who is not familiar with the structure of the combine, if the operation of the switches 71 to 74 is executed according to the display on the screen of the liquid crystal panel 60b, Since the list (related to the auger control in the first embodiment) can be displayed on the screen, the inspector can select the character information by a simple operation of selecting the device name character to be diagnosed from the list display. Can check the used equipment. Therefore, there is no problem that the installation position of the device to be diagnosed is unknown and cannot be inspected.
[0119]
In addition, since a list of input / output devices related to controls other than the auger control can be displayed on the screen of the liquid crystal panel 60b, there is a risk of inspection omission when checking all the input / output devices such as pre-operation inspection. Disappear.
[0120]
Further, when the character information in the list display (character information 173 of the “auger set position dial” in the first embodiment) is highlighted, the first changeover switch 73 is pressed, thereby the liquid crystal panel 60b. Since the diagnostic information of the device (auger set position dial 124 in the first embodiment) selected from the list display can be switched and displayed on the screen, an inspector such as an operator can select the selection from the contents of the diagnostic information. It is possible to easily grasp whether or not the device (the auger set position dial 124 in the first embodiment) is operating normally.
[0121]
In the screen of FIG. 30, the diagnosis result 184 is displayed as “0.00V”, and this value is the normal control range displayed in the remarks 185 of this screen (0.25V to 4.75V in the first embodiment). Thus, an inspector such as an operator can immediately confirm that the auger set position dial 124 is broken.
[0122]
Needless to say, failure diagnosis can be executed in the same manner for other input system devices such as the lift position sensor 45 and the cereal conveyance sensor 96.
[0123]
Next, an embodiment of failure diagnosis of the output system device will be described. Returning to the screen of FIG. 29C, when the first changeover switch 73 is pressed in a state where the character information 181 of “drive motor” is highlighted, the drive motor 29 that is one of the output system devices is selected ( The diagnosis information (see FIG. 31A) of the drive auger 29 is switched and displayed on the screen of the liquid crystal panel 60b.
[0124]
In this case, on the screen of the liquid crystal panel 60b, the diagnosis target device name 183 ("drive motor" in FIG. 31), the diagnosis result 184, and the operation procedure of each switch 71, 72, 74 at the time of failure diagnosis are displayed as diagnosis information. A remark 185 to be displayed and the name of the detected CAN controller (“decompression controller (C2)” in FIG. 31) are displayed.
[0125]
The display of the diagnosis result 184 here indicates the operating state of the output system device (the drive motor 29 in FIG. 31) during failure diagnosis. In addition, four operation instruction indicators 165 to 168 are also displayed on the screen (see FIG. 31).
[0126]
When diagnosing a failure of the drive motor 29 that is one of the output system devices, as shown in the remarks 185 explaining the operation procedure, press the “right” while pressing the “drive”, that is, the upper right corner of the screen If the up-cursor movement switch 71 for the operation instruction mark 165 in the upper left corner of the screen is pressed while the second changeover switch 74 for the operation instruction mark 168 is pressed, the diagnosis result is obtained if the drive motor 29 is operating normally. The character display of 184 is changed from “stop” to “turning right” (see FIG. 31B), and the vertical cylinder 28a and the horizontal cylinder 28b of the discharge auger 28 rotate about the vertical axis in the direction of arrow R shown in FIG. Turn to. While the two switches 71 and 74 are pressed simultaneously, the alarm buzzer 129 sounds.
[0127]
On the other hand, when “Left” is pressed while “Drive” is pressed, that is, when the cursor downward movement switch 72 for the operation instruction indicator 166 in the lower left corner of the screen is pressed while the second changeover switch 74 for the operation instruction indicator 168 is pressed. If the drive motor 29 is operating normally, the character display of the diagnosis result 184 is switched to “turning left” (see FIG. 31C), and the vertical cylinder 28a and the horizontal cylinder 28b of the discharge auger 28 are shown. It turns around the vertical axis in the direction of arrow L shown in FIG. Also in this case, the alarm buzzer 129 sounds while the two switches 72 and 74 are pressed simultaneously.
[0128]
Also in this case, when the first changeover switch 73 for the operation instruction indicator 167 at the lower right corner of the screen is pressed, the screen display of the liquid crystal panel 60b returns to the selection menu information (see FIG. 27).
[0129]
If the control is performed as described above, the output system device (the diagnosis target) (if the second switch 74 and the cursor up switch 71 or the cursor down switch 72 are not operated at the time of failure diagnosis of the output system device). In the first embodiment, the drive motor 29) does not operate, and as a result, the control target (the discharge auger 28 in the first embodiment) provided with this output system device does not operate. That is, even if an inspector such as an operator inadvertently hits one of the switches 71, 72, or 74, the control object does not operate. Therefore, the control object (first In the embodiment, the danger of the discharge auger 28) operating can be reliably prevented.
[0130]
In addition, since it is considered that the operation of simultaneously pressing the two switches 71 (or 72) and 74 is performed with both hands, the inspector may inadvertently hit a lever or a switch for an output system device other than the diagnosis target. The risk can be reduced, and the danger that another control object is activated before the inspector notices can be avoided.
[0131]
Further, when diagnosing the output system device, information (diagnosis information) of the output system device (the drive motor 29 in the first embodiment) to be diagnosed can be displayed on the screen of the liquid crystal panel 60b (see FIG. 31). The inspector such as the output system device (the drive motor 29 in the first embodiment) not only from the operation of the control target (the discharge auger 28 in the first embodiment) but also from the contents of the diagnostic information on the screen. Can easily grasp whether or not is operating normally.
[0132]
For example, if both of the two switches 71 (or 72) and 74 are pressed, a character “stop” is displayed in the column of the diagnosis result 184 on the screen of the liquid crystal panel 60b. Thus, the operator can grasp that the drive motor 29 is out of order. The fact of this failure can also be understood from the fact that the discharge auger 28 does not pivot.
[0133]
Moreover, although not illustrated here, even if the control target related to the output system device to be diagnosed is inside the traveling machine body 1, the operation cannot be seen directly (see the second embodiment described later). From the contents of the diagnostic information on the screen, it is possible to easily grasp whether or not the output system device is operating normally.
[0134]
In addition, the alarm buzzer 129 sounds while the two switches 71 (or 72) and 74 are pressed simultaneously, so that the operator's attention can be drawn and, for example, this combine is also activated for those around the combine. It is possible to safely execute the fault diagnosis of the output system device by informing that it is in a state.
[0135]
Needless to say, failure diagnosis can be performed in the same manner for other output system devices such as the handling depth control motor control circuit unit 103 and the peristaltic sorting drive motor 116. Further, the combination of switches to be pressed for the operation of each output system device is not limited to the above-described embodiment, and the number of switches may be three or more.
[0136]
32 to 34 show a second embodiment showing an embodiment of failure diagnosis. Here, in the second embodiment, those having the same configuration and operation as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.
[0137]
In the second embodiment, instead of the four switches 71 to 74 serving as the operation means described above, a touch panel 190 serving as a position instruction means is disposed on the screen of the liquid crystal panel 60b.
[0138]
This touch panel 190 is a conventionally known resistance type, and between a transparent panel substrate made of a glass plate or a synthetic resin plate and a transparent film made of a synthetic resin, ITO (Indium Tin Oxide) or the like A pair of transparent electrode layers made of are arranged so as to be spaced at an appropriate interval through a resistance film (not shown). From the surface of the touch panel 190, image information displayed on the screen of the liquid crystal panel 60b can be seen.
[0139]
When the operator presses a portion of the surface of the touch panel 190 corresponding to the operation instruction markers 165 to 168 on the screen of the liquid crystal panel 60b with a finger or the like, the touch panel 190 detects the pressed position and displays the pressed position information. The information is transmitted to the CAN controller C5 via the flexible wiring board, and the contents (for example, moving the cursor upward of the screen, etc.) such as operation instruction indicators 165 to 168 corresponding to the pressed position are executed.
[0140]
Hereinafter, an embodiment of failure diagnosis in the second embodiment will be described using an auger clutch motor as an example.
[0141]
On the screen of the liquid crystal panel 60b on which the image information of the auger control menu is displayed (see FIG. 29B), the character information of the “clutch motor control circuit unit” corresponding to the control circuit unit 104 such as a relay unit in the auger clutch motor When the part corresponding to the operation instruction mark 167 in the lower right corner of the screen is pressed with a finger or the like in the state where 179 is highlighted, the control circuit part 104 of the auger clutch motor is selected (determined). The diagnostic information (see FIG. 32) of the control circuit unit 104 is switched and displayed on the screen of the liquid crystal panel 60b.
[0142]
In this case, on the screen of the liquid crystal panel 60b, the diagnosis target device name 183 (in FIG. 32 to FIG. 34, “auger clutch motor” provided with the control circuit unit 104), diagnosis result 184, failure diagnosis Remarks 185 indicating the operation procedure of appropriate parts 165, 166, and 168 of touch panel 190 and the detected CAN controller name ("decompression controller (C2)" in FIGS. 32 to 34) are displayed. Note that the display of the diagnosis result 184 here also indicates the operating state of the output system device during the failure diagnosis, as in the failure diagnosis of the output system device in the first embodiment.
[0143]
Four operation instruction indicators 165 to 168 are also displayed on the screen (see FIGS. 32 to 34). The display of the operation instruction indicator 165 in the upper left corner of the screen is “ON”, the display of the operation instruction indicator 166 in the lower left corner is “OFF”, the display of the operation instruction indicator in the lower right corner 167 is “RETURN”, The display of the operation instruction mark 168 at the corner is “drive”.
[0144]
When a failure diagnosis of the control circuit unit 104 of the auger clutch motor is performed, as shown in the remarks 185 explaining the operation procedure, “ON” is pressed while “DRIVE” is pressed. When the part corresponding to the operation instruction mark 165 is pressed while the part corresponding to the sign 168 is pressed, if the control circuit unit 104 is operating normally, the character display of the diagnosis result 184 changes from “stop” to “input”. The operation is switched to “side drive” (see FIG. 33), and the auger clutch motor drives the auger clutch 16 to enter and operate. The alarm buzzer 129 sounds while the two label corresponding parts are pressed simultaneously.
[0145]
On the other hand, when “Cut” is pressed while “Drive” is pressed, that is, when a part corresponding to the operation instruction mark 166 is pressed while pressing a part corresponding to the operation instruction mark 168 of the touch panel 190, the control circuit unit If 104 is operating normally, the character display of the diagnosis result 184 is switched to “cut-off side drive” (see FIG. 34), and the auger clutch motor is driven to turn off the auger clutch 16. Also in this case, the alarm buzzer 129 sounds while the two label corresponding parts are pressed simultaneously.
[0146]
When the part corresponding to the operation instruction indicator 167 in the lower right corner of the screen is pressed on the touch panel 190, the screen display of the liquid crystal panel 60b returns to the selection menu information (see FIG. 27).
[0147]
With the control as described above, even when an operator such as an operator inadvertently touches the touch panel 190 when diagnosing the output system device, the output system device to be diagnosed (control of the auger clutch motor in the second embodiment) The circuit unit 104) does not operate, and as a result, the controlled object (the auger clutch 16 in the second embodiment) driven by the output of the output system device does not operate, so that the inspector notices as in the case of the first embodiment. The danger that the controlled object (the auger clutch 16 in the second embodiment) will be activated before it can be reliably prevented.
[0148]
In addition, it is considered that the operation of simultaneously pressing two label-corresponding parts on the touch panel 190 is often performed with both hands, as in the case of the first embodiment. The risk of inadvertently hitting the levers and switches for the system equipment can be reduced, and the danger that another control object will operate without the inspector's knowledge can be avoided.
[0149]
Further, when diagnosing the output system device, information (diagnosis information) of the output system device to be diagnosed (the control circuit unit 104 of the auger clutch motor in the second embodiment) can be displayed on the screen of the liquid crystal panel 60b (FIG. 32 to 34), even if the control object related to the output system device is inside the traveling machine 1 such as the auger clutch 16, for example, the operation cannot be seen directly. From the contents of the information, it is possible to easily grasp whether or not the output system device (the control circuit unit 104 of the auger clutch motor in the second embodiment) is operating normally.
[0150]
In addition, the alarm buzzer 129 sounds while the two label corresponding parts of the touch panel 190 are simultaneously pressed, so that the operator can be alerted as in the case of the first embodiment, for example, around the combine The person in the station can be informed that this combine is in operation and can safely diagnose the failure of the output system equipment.
[0151]
As described above, also in the case of the second embodiment, it is possible to obtain the same operational effects as those of the first embodiment.
[0152]
In the second embodiment, it goes without saying that the failure diagnosis as described above can be executed for other output system devices such as the handling depth control motor control circuit unit 103 and the peristaltic sorting drive motor 116. Moreover, the combination of the pressing parts of the touch panel that are pressed for the operation of each output system device is not limited to the above-described embodiment, and the number of pressing parts of the touch panel may be three or more. . The touch panel as the position instruction means may be an electrostatic type or an optical type.
[0153]
It goes without saying that the present invention is not limited to the above-described embodiment, and can be widely applied to various agricultural machines, special working vehicles such as crane trucks, and various working machines such as passenger cars.
[0154]
Further, the present invention includes both the operation means such as the plurality of switches 71 to 74 in the first embodiment and the position instruction means such as the touch panel 190 in the second embodiment, thereby diagnosing the failure of the output system device. At this time, the output system device to be diagnosed may be operated by pressing at least one of the operation means and at least one position on the position indicating means.
[0155]
The communication bus (line) in the present invention may use not only a CAN (Controller Area Network) protocol but also a LAN (Local Area Network) protocol. The present invention can be applied not only to the above-mentioned CAN communication environment but also to a control system in a LAN communication environment. However, data communication using the CAN communication protocol facilitates exchange of control data between the controllers. In addition, it is possible to smoothly detect a communication error state and perform error processing during that time. Note that there may be a plurality of controllers as control means, or a single controller. The display device of the present invention is not limited to the liquid crystal display device 60 using the liquid crystal panel 60b, and may be a CRT display, an EL display, or the like.
[0156]
【The invention's effect】
According to the first aspect of the present invention, in order to operate the output system device to be diagnosed in the failure diagnosis mode, when a plurality of operation means are provided near the screen of the display means, at least two of the operation means groups are included. Must be operated manually.
[0157]
Further, when the position indicating means is provided on the screen of the display means, at least two places in the position indicating means must be manually operated, and both the operation means group and the position indicating means are provided. In such a case, it is necessary to manually operate at least one of the operating means group and at least one place on the position indicating means.
[0158]
Therefore, even if an inspector such as an operator inadvertently hits any one of the operation means group or the position instruction means, each part of the work machine (control target) driven by the output of the output system device does not operate. Therefore, there is an effect that it is possible to surely prevent the danger that each part of the working machine operates without the inspector being aware.
[0159]
In addition, since each manual operation is considered to be performed with both hands, it is possible to reduce the risk that the inspector will inadvertently hit the levers and switches for the output system equipment other than the diagnosis target. There is also an effect that it is possible to avoid the danger that another control object is activated.
[0160]
  MoreWhen the operation control of the output system device to be diagnosed is executed, the information on the output system device is displayed on the screen of the display means. From the content of the information on this screen, the inspector There is an effect that it is possible to easily grasp whether or not is operating normally.
[0161]
  And,in frontWhile performing each manual operationAlarm buzzerIn this case, the operator's attention can be alerted, and for example, a person around the work implement can be informed that the work implement is in an operating state, and the failure diagnosis of the output system device can be executed safely. Play.
[Brief description of the drawings]
FIG. 1 is a left side view of a combine.
FIG. 2 is a right side view of the combine.
FIG. 3 is a front view of the combine.
FIG. 4 is a skeleton diagram of a power transmission system.
FIG. 5 is a hydraulic circuit diagram.
FIG. 6 is a schematic plan view of a cab.
FIG. 7 is an enlarged plan view showing a steering round handle and a liquid crystal display device.
FIG. 8 is a functional block diagram of the entire control device.
FIG. 9 is a functional block diagram of a CAN controller C1.
FIG. 10 is a functional block diagram of a CAN controller C2.
FIG. 11 is a functional block diagram of a CAN controller C3.
FIG. 12 is a functional block diagram of a CAN controller C4.
FIG. 13 is a functional block diagram of a CAN controller C5.
FIG. 14 is a transition diagram of each mode.
FIG. 15 is a transition diagram of a normal mode.
FIG. 16 is a diagram showing a screen showing image information in an initial mode.
FIG. 17 is a diagram showing a screen showing image information in a non-working mode.
FIG. 18 is a diagram of a screen showing image information in a work mode.
FIG. 19 is a diagram of a screen in a normal mode in which an integrated value of the cutting work time is displayed.
FIGS. 20A and 20B are diagrams showing a screen showing the culm clogging information of the culm pulling device in the emergency information, where FIG. 20A is detailed information and FIG. 20B is treatment information.
FIGS. 21A and 21B are diagrams illustrating screens showing handling cylinder clogging information among work system abnormality information, where FIG. 21A is detailed information and FIG. 21B is treatment information;
FIGS. 22A and 22B are diagrams showing engine oil pressure abnormality information among engine system abnormality information, where FIG. 22A is detailed information and FIG. 22B is treatment information;
FIG. 23 is a diagram of a normal mode screen on which an alarm sign is displayed.
FIG. 24 is a diagram of a screen in a normal mode on which an error sign is displayed.
FIGS. 25A and 25B are diagrams showing image information in an error display mode, where FIG. 25A is a working depth sensor, FIG. 25B is a fuel sensor, FIG. 25C is a fuel injection pump rack actuator, and FIG. It is a sensor.
FIG. 26 is a diagram showing a screen showing image information in an operation switch setting mode.
FIG. 27 is an enlarged plan view of the liquid crystal display device in a state where selection menu information in the maintenance mode is displayed on the screen.
FIGS. 28A to 28C are diagrams showing checker menu information.
FIGS. 29A to 29C are views showing screens showing image information of an auger control menu.
FIG. 30 is a diagram of a screen showing diagnostic information of an auger set position dial.
FIGS. 31A to 31C are screen diagrams showing diagnosis information of a drive motor.
FIG. 32 is an enlarged plan view of the liquid crystal display device in a state where diagnosis information of the auger clutch motor is displayed on the screen in the second embodiment.
FIG. 33 is a diagram of a screen showing diagnosis information of an auger clutch motor.
FIG. 34 is a diagram of a screen showing diagnosis information of an auger clutch motor.
[Explanation of symbols]
C1-C5 CAN controller
S1-S5 application control program
M1 initial mode
M2 normal mode
M3 alarm display mode
M4 environment setting mode
M5 error display mode
M6 maintenance mode
1 Traveling aircraft
2,2 Traveling crawler
3 Threshing device
4 Cutting pre-treatment device
15 engine
28 discharge auger
56 Driver's seat
57 Front column cover
58 Steering round handle
60 Liquid crystal display devices
60a case
60b Liquid crystal panel as display means
70 work lamp
71 Cursor up switch
72 Cursor down switch
73 1st changeover switch
74 Second changeover switch
75 Controller
77 CPU
78 EEPROM

Claims (1)

In a control device for a work machine comprising input system equipment such as sensors and setting devices provided in each part of the work machine, output system equipment such as an actuator, and control means for executing control of each input / output system equipment ,
A plurality of operation means are provided near the screen of the display means for displaying information on the normal mode for running on the road and various work , or a position indicating means is provided on the screen, or both of them are provided.
The control means manually operates at least two of the appropriate parts of the operation means group and the position instruction means to operate the output system device to be diagnosed in the failure diagnosis mode . wherein the screen of the display unit, the displays an information of diagnostic object of the output system equipment, the control device in the working machine and controlling the so that be notified by the alarm buzzer connected to said control means.

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