JP3540967B2 - Combine display device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is an image display means for displaying notification information to be notified to an operator as image information, a display control means for managing the notification information, and controlling the notification information to be displayed on the image display means, Is providedCombineRelated to a display device.
[0002]
[Prior art]
In the display device of the work vehicle, for example, as shown in Japanese Patent Application Laid-Open No. 10-42674, in a combine for harvesting and harvesting, which is an example of a work vehicle, after a worker starts an engine of a diesel type or the like, Before traveling, it is necessary to raise the engine speed to the working speed, so that the engine speed information is displayed on the image display means such as an LCD display as notification information as a bar graph image, The operator can manually adjust the rotation speed adjusting means such as an accelerator lever while viewing the image display of the rotation speed so that the engine rotation speed can be changed and adjusted to the working rotation speed. After the engine speed is adjusted, when the operator switches to a working unit driving state in which the power of the engine is transmitted to a working unit such as a threshing unit in order to shift to work traveling, the image display means is displayed. Indicates information other than the engine speed, for example, load information of the engine that fluctuates with the work as notification information.
[0003]
[Problems to be solved by the invention]
In the above-described conventional technology, for example, when the worker determines that the output of the engine is insufficient or excessive during the operation, the operator stops the traveling of the work vehicle and attempts to change and adjust the rotation speed of the engine. For example, the means is in a state in which the load information of the engine is displayed, and therefore, there is a problem that the engine speed cannot be appropriately changed and adjusted while watching the image display of the engine speed.
In view of this, it is conceivable to provide a manual switch or the like for switching the display for displaying information on the engine speed on the image display means. In this case, the display state of the image display means is operated by operating the manual switch or the like each time. Has to be switched, and there is a disadvantage that an operator's operation load increases.
[0004]
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to solve the above-mentioned disadvantages of the related art while avoiding an increase in an operator's operation load, while providing information information to be notified to an operator. Is displayed on the image display means for displaying the information of the engine speed appropriately as image information.
[0005]
[Means for Solving the Problems]
According to claim 1,Drive state detection means for detecting whether the threshing unit provided in the combine is in a drive state,Rotation number detecting means for detecting the rotation number of the engine whose rotation number is changed and adjusted by the manual rotation number adjusting means,CombineTraveling state detecting means for detecting whether or not the vehicle is traveling,The display control means, based on the information of the drive state detection means, when the threshing unit is in a non-driving state, displays the engine speed information on the image display means, the threshing unit in the driving state In some cases, the load information of the engine is configured to be displayed on the image display means, andIn the running state detecting meansCombineWhen it is detected that the vehicle is not running, when it is detected that the rotation speed of the engine has changed by a predetermined rotation speed or more based on the detection information of the rotation speed detection means, the rotation speed of the engine is determined. The number information is displayed on the image display means as the notification information.
Therefore,CombineWhile the vehicle is stopped, if the engine speed is changed by the manual speed adjustment means by more than the set speed, the change in the engine speed is detected, and the engine speed information is displayed. Since an image is displayed on the image display means, for example, in the case of operating a manual switch for display switching to display information on the engine speed on the image display means, for example, As compared with the disadvantage that the operation burden increases, the information on the engine speed can be appropriately displayed on the image display means while avoiding the disadvantage.
[0006]
Furthermore, threshing sectionIn a non-drive state in which the engine is not driven by the power of the engine, the engine speed information is displayed on the image display means,Threshing sectionIn the driving state in which the engine is driven by the power of the engine, the load information of the engine is displayed on the image display means.Threshing sectionIn a non-driving state, the engine speed can be appropriately changed and adjusted to the working speed while watching the image display of the engine speed displayed on the image display means, and the engine speed is adjusted. After going,Threshing sectionTo the driving state and display the load information of the engine that fluctuates with the work as an image so that the load state of the engine can be checked accurately.it can.
[0007]
Claim 2According toClaim 1, A main switch that can be switched between an off state in which power supply from the battery to the vehicle body is turned off, an on state in which power supply from the battery to the vehicle body is turned on, and an operation state of a starting device that starts the engine. Is provided, the display control means, after the main switch is switched from the off state to the on state, until the operating state of the starting device is switched to the image display means,CombineOperating time information and the batteryStorageThe battery information indicating the state is displayed.
Therefore, after the main switch is switched from the off state in which the power supply from the battery to each part of the vehicle body is turned off to the on state in which the power supply from the battery to each part of the vehicle body is turned on, the operation state of the starting device for starting the engine is changed. Until it is switched, the image display meansCombineOperating time information and batteryStorageThe battery information indicating the state is displayed.CombineBattery lifeStorageAfter confirming that the battery is sufficiently charged by displaying the status, the engine can be started, so thatClaim 1Is obtained.
[0008]
Claim 3According to Claim 1Or Claim 2, The display control means is configured to display the engine speed information as numerical information.
Therefore, since the engine speed can be accurately displayed by the numerical information, the engine speed can be displayed in a non-numeric image, such as a bar graph image in which the engine speed is displayed by the tip position of the bar. 2. The engine speed can be changed and adjusted more accurately while watching the numerical display of the number.Or Claim 2Is obtained.
[0009]
Claim 4According to claims 1 toThreeIn any one of the first to third aspects, there is provided a rotation speed display unit configured to move an instruction unit for instructing the detected rotation speed along a change in the rotation speed of the engine along a set path, and the display control unit Is configured to display the engine speed information on the engine speed display unit based on the detection information of the engine speed detection unit.
Therefore, the so-called analog-type rotation speed display means is configured such that an indicator such as an indicator hand that moves along a set path in accordance with a change in the rotation speed of the engine indicates the detected rotation speed of the engine. Since the rotation speed is displayed, even when the information on the engine rotation speed is not displayed on the image display means, the state of the engine rotation speed can be quickly grasped by the analog rotation speed display means, Thus, claims 1 to3The preferred means of any one of the above is obtained.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
[First Embodiment]
Hereinafter, the present inventionCombineFirst Embodiment of Display ApparatusToDescription will be given based on the drawings.
As shown in FIG. 1 to FIG. 3, the combine harvester is mounted on a front portion of a body V equipped with a pair of right and left crawler traveling devices 30 in a state where the harvester can be vertically oscillated around a horizontal axis X by a harvester lifting cylinder 5. 1, a control unit 31, a threshing unit 2 for threshing and sorting the harvested grain culm, a tank 3 for storing grains supplied from the threshing unit 2, and a tank 3 in the tank 3. An unloader 32 for discharging the grains for discharging the grains is mounted..
[0011]
As shown in FIG. 2, the cutting unit 1 includes a weeding tool 33 attached to the tip, a grain culling raising device 34, a cutting blade 35 for cutting the root of the raised grain culm, and a cut grass culm. An auxiliary transport device 37 for collecting and transporting rearward, a vertical transport device 36 for receiving the harvested culm at the tip end side and transferring it to the feed chain 52 of the threshing unit 2 are provided. Further, an ultrasonic sensor S6 for detecting the height of the cutting unit 1 with respect to the ground, and a stock sensor S2 for turning on when the grain stem touches to detect that the cutting operation is being performed are provided. Then, based on the information of the ultrasonic sensor S6, the cutting height control for controlling the operation of the cutting and lifting cylinder 5 is executed such that the ground height of the cutting unit 1 is maintained at the target set height. A cutting clog detection switch S14 for detecting clogging of the grain stalk is provided in the grain stalk transport path of the auxiliary transport device 37, the vertical transport device 36, and the like (see FIG. 12).
[0012]
The vertical transport device 36 (in FIG. 2, there is a portion that is partially different from FIG. 1 in order to explain the function of the vertical transport device 36) sandwiches and transports the root side of the cereal stem. It is composed of a stock feeder 36a, a tip feeder 36b for locking and transferring the tip side of the grain stem and a tip guide plate 36c, and is supported so as to be swingable about the same axis as the swing axis X of the cutting unit 1. At the same time, a swing depth is provided by a handling depth motor M1 so as to be freely adjustable. Thereby, the holding position of the grain culm received from the auxiliary transport device 37 is changed in the culm length direction so that the handling depth in the threshing unit 2 can be adjusted. It is configured. Also, in the conveying path of the harvested grain culm, it is juxtaposed at intervals in the culm length direction on the lower side in the conveying direction from the handling depth adjustment point by the handling depth motor M1 and swings when the grain culm contacts. And a pair of switch-type head sensors S8a and S8b that are turned on.
Then, the state in which the tip of the grain stem is located between the pair of head sensors S8a and S8b (the state in which the stock sensor S8b is on and the head sensor S8a is off) is set as a proper handling depth state, and A handling depth control for controlling the operation of the handling depth motor M1 is performed so that the handling depth state is maintained.
[0013]
As shown in FIG. 3, the position of the airframe V in the horizontal direction of the airframe V with respect to the grain stalk row introduced between the plurality of weeding tools 33 is provided on the second weeding tool 33 from the left as viewed from the front of the body. A pair of left and right direction sensors S1 provided with a detection bar that swings toward the rear side of the fuselage in contact with the grain culm in order to detect the stalk.
Then, based on the information from the pair of direction sensors S1, the left and right steering for turning on / off the power transmission to the left and right crawler traveling devices 30 so that the traveling machine V automatically travels along the planted grain culm. Direction control for controlling the operation of the steering cylinders 9L and 9R (see FIG. 12) for operating the clutches (not shown), respectively, is executed. That is, since the machine body V turns to the side of the left and right crawler traveling devices 30 to which power transmission is cut off, if the machine body V is displaced from the proper position, the vehicle V is moved to the crawler traveling device 30 on the opposite side to the displacement. The driving direction is corrected by operating the steering cylinders 9L and 9R so as to cut off the power transmission.
[0014]
Each of the left and right crawler traveling devices 30 is provided with a left and right track frame 30d provided with a driving sprocket 30a, a tension wheel 30b, and a plurality of driven wheels 30c. Separately, a rolling cylinder 30e for raising and lowering is provided, and the body V is provided with a rolling sensor S4 for detecting the inclination of the body with respect to the horizontal plane.
Then, horizontal control for controlling the operation of the left and right rolling cylinders 30e is performed based on the information of the rolling sensor S4 so that the body attitude is maintained at a predetermined attitude such as a horizontal attitude regardless of the state of the ground. .
[0015]
The unloader 32 has a discharge port 32a with a downward attitude at the distal end, and is supported by the support portion 32b in a state where the base end side is vertically swingable about the horizontal axis Z, and is used for vertically swinging the same. An unloader hydraulic cylinder 62 is provided, and the support portion 32b is pivotally supported by the body V in a state in which the support portion 32b can be turned around the vertical axis Y, and a turning motor M3 for turning the turn is provided. . Further, an unloader position sensor S3 composed of a potentiometer is provided to detect the turning position of the support portion 32b. FIG. 3 shows a state in which the unloader 32 has been moved to the storage home position during a mowing operation or the like.
Then, unloader control for controlling the operation of the unloader 32 is executed based on information such as the unloader position sensor S3 and a limit switch (not shown) for detecting a limit position of the ascending operation and the turning operation in the left-right direction. .
[0016]
As shown in FIG. 4, the threshing unit 2 includes a handling room A for accommodating the handling drum 51, a feed chain 52 for transporting grain culms supplied from the reaping unit 1, a torsion 53 and a swing sorting plate 54. The apparatus B is provided with a first port 55 for collecting grains and a second port 56 for collecting a mixture of grains and straw (second). Then, of the processed products threshed in the handling room A, the single-grained products are leaked to the sorting device B from the receiving net 57 provided at the lower part of the handling room A, and the other processed products are received by the receiving net 57. From the rear end to the sorting device B.
The second product collected at the second port 56 is configured to be returned to the start end side of the swing sorting plate 54 by a screw type second transfer device 63, and the second transfer device 63 Is provided with a second rotation sensor S16 for detecting the number of rotations. Further, on the rear side of the threshing unit 2, a waste straw cutter unit 64 for cutting the waste discharged from the threshing unit 2 is provided, and a cutter clogging detection switch S15 for detecting clogging of the waste straw cutter is provided. (See FIG. 1).
[0017]
As shown in FIG. 2, the feed chain 52 has a holding rail 52 a opposed to the feed chain 52 in a state where the holding rail 52 a is pressed and urged toward the feed chain 52. Is configured to be conveyed while nipping and holding. However, the holding rail portion located on the front side of the handling room A is configured to be movable to an upper position separated from the feed chain 52 by the rail lifting motor M2 or the like.
Thereby, together with the normal state in which threshing is performed while holding and transporting the cut grain culm in the lateral side of the handling room A, and when the culm length of the cut grain culm is extremely short, all the culms of the grain culm are transferred to the handling room A. It is configured such that rail control for driving the rail raising motor M2 and the like can be executed so as to be turned on.
[0018]
The swinging sorting plate 54 of the sorting device B includes a grain pan 58 located above the tongue 53, a chaff sheave 59 located behind it, a grain sheave 61 located below it, and the like. The chaff sheave 59 is composed of a plurality of strip-shaped members juxtaposed in the processing object transfer direction, and the interval between adjacent strip-shaped members (chaff opening) is changed by the chaff opening adjustment motor M4. Have been. S10 is a sheave sensor that detects the thickness of the processed material on the swing sorting plate 54.
The toumi 53 is for blowing off the straw debris on the oscillating sorting plate 54, and the processing on the oscillating sorting plate 54 is performed by opening and closing the fan case cover 53 a on the rear side with the toumi wind power adjusting motor M <b> 5. The wind force exerted on the object (Tumi wind force) is configured to be changed. In other words, the larger the degree of opening of the cover, the smaller the wind force on the front side, and the smaller the wind power.
[0019]
Threshing control for controlling the operation of the chaff opening adjustment motor M4 and the turtle wind adjustment motor M5 in accordance with the amount of material leaked from the handling room A so that the sorting process in the sorting device B is properly performed. Be executed. Here, when the traveling speed increases, the amount of cut corn culm supplied to the handling room A increases, and the amount of the processed material leaking from the handling room A increases. Therefore, it is determined based on the information of the vehicle speed sensor S7 described later. The larger the amount of cereal stalk supplied to the handling room A, the greater the degree of chaff opening and the degree of turtle wind are controlled.
[0020]
Next, a power transmission system is shown in FIG. The output of the engine E mounted on the machine body V is transmitted to the threshing unit 2 via the threshing clutch 37, and is also transmitted to the transmission unit 40 of the crawler traveling device 30 via the traveling clutch 38 and the continuously variable transmission 39. You. The output transmitted to the transmission unit 40 is transmitted to the crawler traveling device 30 via an auxiliary transmission (not shown) provided in the transmission unit 40, and transmitted to the reaping unit 1 via the reaping clutch 47. S9 is a threshing switch for detecting the on / off state of the threshing clutch 37, S7 is a vehicle speed sensor for detecting a running speed based on the number of revolutions input to the transmission unit 40, and S5 is an electromagnetic pickup type engine. It is a rotation speed sensor. Further, a speed change motor M6 for performing a speed change operation of the continuously variable transmission 39, a hydraulic clutch for speed change of the auxiliary transmission, and the like (not shown) are provided.
As described above, the rotation speed detecting means for detecting the rotation speed of the engine E is constituted by the engine speed sensor S5, and the running state detecting means for detecting whether or not the combine is running is performed by the vehicle speed sensor S7. The driving state detecting means for detecting whether or not the threshing unit 2 as a working unit is in a driving state is configured by the threshing switch S9.
[0021]
Since the engine speed decreases as the load on the engine E increases, the load on the engine E is determined based on the amount of decrease in the engine speed from the engine speed at no load (reference speed). In order to use the capability of E as effectively as possible, it is determined based on the information of the engine speed sensor S5 under the condition that the running speed detected by the vehicle speed sensor S7 does not exceed the set upper limit speed. Vehicle speed control for controlling the operation of the speed change motor M6 is executed so that the engine load is maintained in an appropriate range.
[0022]
As shown in FIG. 6, the output of the engine E is changed by swinging the governing lever 76 of the governor 75. The speed control lever 76 is urged by a spring or the like (not shown) toward a start position shown in the figure, and is linked to an accelerator lever 78 provided on the control section 31 by a release wire 77. Are provided, and a potentiometer-type accelerator position sensor S17 for detecting the operation position of the accelerator lever 78 is provided. The accelerator lever 78 is configured to be operable between a start position on the low rotation side and a maximum rotation speed position. The accelerator lever 78 is operated to the start position when the engine is started. The ascending operation is performed to a rated rotational speed position (work rotational speed position) set on a lower rotational speed side than the rotational speed position. That is, the accelerator lever 78 constitutes a manual rotation speed adjusting means for changing and adjusting the rotation speed of the engine E. The fuel injection amount supplied to the engine E is adjusted based on the detection information of the accelerator position sensor S17, and the engine speed is controlled to the speed corresponding to the operation position of the accelerator lever 78. ing.
[0023]
Next, input means for inputting information such as a start command of the above-described various controls (cutting height control, depth control, direction control, horizontal control, unloader control, rail control, threshing control, etc.) and control target values, A description will be given of various information display means.
As shown in FIG. 7, a basic switch module MU1 (see FIG. 8) including, in order from the side near the seat, a start switch and an adjustment volume for each of the above controls, on the left side of the seat 31A of the control unit 31, A horizontal control switch module MU3 (see FIG. 10) provided with a start switch for horizontal control, a manual operation switch, and the like is arranged. Further, a manual shift lever 7 for shifting the running speed is provided with a grip 7A. It is provided so as to be located above the switch module MU1. The speed change motor M6 is driven in accordance with the operation of the manual speed change lever 7.
On the other hand, on the right front side of the seat 31A, there is provided an entry / exit section 31B, and on the rear right side of the seat, an unloader switch module MU2 (see FIG. 9) including a switch for operating the unloader 32 is arranged. I have.
[0024]
On the right front side of the maneuvering section 31, a cross-operation type of maneuvering height steering configured to serve as a mowing elevating lever for manually raising and lowering the mowing section 1 and a steering lever for manually turning the traveling body V left and right. A lever 8 is provided. That is, when the cutting height steering lever 8 is pivoted rearward, the cutting unit 1 is raised, and when the cutting height steering lever 8 is pivoted forward, the cutting unit 1 is lowered, and the cutting height steering lever 8 is pivoted to the left. When operated, the aircraft turns left, while when swinging to the right, the aircraft turns right. In order to detect the amount of swing operation of the cutting height steering lever 8 in each direction of the cutting elevation and the steering operation, a cutting elevation sensor S12 and a steering operation detection sensor S13 each constituted by a potentiometer. (See FIG. 13).
A display module MU4 (see FIG. 11) for displaying various information is provided on the left front panel of the control unit 31.
[0025]
As shown in FIG. 8, the basic switch module MU1 includes an operation unit 41 for threshing and handling depth control, an operation unit for vehicle speed control 42, an operation unit for direction control 43, and an operation unit for cutting height control. 44, a rail control operation unit 45, and a spare operation unit 46 are provided. The spare operation unit 46 is used as an operation unit when control other than the above is added.
[0026]
The threshing and handling depth control operation unit 41 includes a handling depth control start switch 41a configured as an illuminated push button switch, and a crop for selecting one crop condition from wheat, rice, and wet. A switching volume 41b, a chaff volume 41c for adjusting the opening degree of the chaff, and a toumi volume 41d for adjusting the wind power of the toumi are integrally formed. Here, in the one crop condition, as the chuff volume 41c is turned to the open side, the control state of the chaff opening degree with respect to the grain culm supply amount is changed to the open side as a whole, and the tofu volume 41d is turned to the strong side. As a result, the control state of the wind power of the turtle with respect to the supply amount of the cereal stem is changed and adjusted as a whole to the strong side. Further, by selecting the crop condition, the control state of the chaff opening degree is changed and adjusted as a whole to the open side in the order of wheat, rice, and wetness, and the control state of the turtle wind is changed and adjusted as a whole to the strong side.
[0027]
The vehicle speed control operation unit 42 is integrally formed with a vehicle speed control start switch 42a configured as an illuminated push button switch and a vehicle speed limit volume 42b for setting an upper limit vehicle speed.
The direction control operation unit 43 is integrally formed with a direction control start switch 43a configured as an illuminated push button switch and a turning force switching volume 43b for adjusting the turning force. Here, when the turning force switching volume 43b is turned to the large side, the ratio of the on-time to the off-time (the duty ratio) of the steering cylinders 9L and 9R driven by the duty is changed to the large side, and the turning force is increased. When it is turned to the small side, the duty ratio is changed to the small side, and the turning force is reduced.
The cutting height control operation unit 44 is integrally formed with a cutting height control start switch 44a configured as an illuminated push button switch and a cutting height adjustment volume 44b for setting a target cutting height. ing.
The rail control operation unit 45 is integrally formed with a start switch 45a for turning on / off the rail control and a rail control lamp 45b for displaying the on / off state of the rail control.
FIG. 8 exemplifies a case (with a click) in which each switching by the chaff volume 41c, the toumi volume 41d, the vehicle speed limiting volume 42b, the turning force switching volume 43b, and the cutting height adjusting volume 44b can be adjusted in seven stages.
[0028]
As shown in FIG. 9, the unloader switch module MU2 includes an automatic / stop switch 50a for starting or stopping automatic operation of the unloader 32, which is configured as an illuminated push button switch, and an illuminated push button switch. A manual operation switch 50d constituted by a tank overhanging open switch 50b and a tank overhanging close switch 50c, a cross operation key for manually operating the unloader 32 to ascend, descend, right turn and left turn, and a target of the unloader 32 A stop position selection volume 50e for selecting a stop position from the left side of the body, the rear side of the body, and the right side of the body is integrally formed.
[0029]
As shown in FIG. 10, the horizontal control switch module MU3 includes an automatic switch 60a for activating the horizontal control configured as an illuminated push button switch and a illuminated push button switch to increase the horizontal control mode. A horizontal mode changeover switch 60b for switching between a reference and a lowering reference, a reverse aircraft lift switch 60c configured as an illuminated push button switch, and a cross operation key configured to raise, lower, raise and lower the attitude of the fuselage. A manual operation switch 60d for operating in each state and a horizontal adjustment volume 60e for setting a target tilt state when the horizontal control is activated (automatic mode) are integrally formed.
[0030]
As shown in FIG. 11, the display module MU4 includes a pointer-type fuel meter 70a, a pointer-type tachometer 70b, a water temperature meter 70c, and a fir meter in the tank 3, which indicate the remaining amount of fuel in a fuel tank (not shown). And a main LCD 70e for displaying image information such as various messages and graphs. Further, left and right turn signal lamps 70f, charging (charge) 70g4, brake 70g3, oil 70g2, There are provided various alarm lamps for checking 70g1, and an auxiliary transmission lamp 70h for displaying whether the switching state of the auxiliary transmission device is high speed, standard, lodging, or neutral. A rotational speed display configured such that the pointer sb as an instruction unit for instructing the detected rotational speed with a change in the rotational speed of the engine E moves along a set path by the pointer-type tachometer 70b. Means KH are constituted.
In the figure, a bar graph showing the load level of the engine is shown on the upper side of the main LCD 70e, and a bar graph showing the amount of the processed material on the swing sorting plate 54 of the threshing unit 2 detected by the sheave sensor S10. The lower ones are shown as examples.
A check switch 71 and a display changeover switch 72 are provided on the right side of the display module MU4. These switches 71 and 72 are turned on only when pushed, but not pushed. Are configured as push-button switches that are turned off.
[0031]
Then, as shown in FIGS. 12 and 13, a central control unit CU that centrally executes control of the entire combine, a reaping unit 1, a threshing unit 2, and a tank unit (configured by the tank 3 and the unloader 32). In addition, a plurality of terminal control units LU (LU1 to LU5) and modules MU (MU1 to MU4) which are distributed and arranged in each unit of the body such as the main unit 4 and the like via the high-speed communication line T1 and the low-speed communication line T1. The central control unit CU includes a plurality of controls (the above-described depth control, threshing control, vehicle speed control, direction control, cutting height control, rail control, unloader control, and horizontal control) for operating the combine. Control, etc.).
[0032]
Sensors SW for detecting control information and actuators AK for work are connected to any of the plurality of terminal control units LU, and input / output signals to / from the connected terminal control units LU. Is configured.
The actuators AK include the hydraulic cylinders and electric motors and the like for operating the working devices provided in each part of the machine body. The sensors SW include switches and the like that detect various control information as binary information of ON / OFF. Become.
[0033]
Specifically, as illustrated in FIG. 12, a drive signal for the handling depth motor M1 is output from a terminal control unit LU3 arranged in the reaping unit 1, and the direction sensor is provided to the terminal control unit LU3. S1, the stock sensor S2, the tip sensors S8a and S8b, and the detection signals of the cutting jam detection switch S14 are input.
A drive signal is output from the terminal control unit LU4 arranged in the threshing unit 2 to the rail lifting motor M2, the chaff opening degree adjustment motor M4, and the toumi wind power adjustment motor M5, and to the terminal control unit LU4, The detection signal of the cutter clogging detection switch S15 is input.
[0034]
A drive signal for the speed change motor M6 is output from one terminal control unit LU2 among the two terminal control units LU1 and LU2 arranged in the main unit 4, and the threshing switch is provided to the terminal control unit LU2. S9 and a signal from a sub-transmission switch (not shown) for changing the transmission state of the sub-transmission are input, and the other terminal control unit LU1 is configured as a terminal control unit dedicated to hydraulic output, and this terminal control unit Each drive signal for each solenoid for driving the mowing lift cylinder 5, the steering cylinders 9L and 9R, the rolling cylinder 30e, and the unloader hydraulic cylinder 62 is output from the LU1.
A drive signal for the turning motor M3 is output from the terminal control unit LU5 disposed in the tank unit, and the terminal control unit LU5 is provided with a fir sensor S11 for detecting the amount of grains stored in the tank 3. The detection signal has been input.
[0035]
Terminal control units (hereinafter referred to as high-speed terminal units) LU1 to LU5 for inputting / outputting a signal requiring high-speed communication processing for driving the actuators AK are connected to the central control unit CU via a high-speed communication line T1. On the other hand, the switch modules MU1 to 3 and the display module MU4 to and from which signals that do not require high-speed communication processing are input and output are connected to the central control unit CU by a low-speed communication line T2.
Then, the central control unit CU performs multiplex communication with each of the high-speed terminal units LU1 to LU5 connected to the high-speed communication line T1 by the polling selecting method for designating each address, while performing the multiplex communication. It is configured to execute a high-speed communication process with the device.
[0036]
As shown in FIG. 13, the central control unit CU is provided with a microcomputer CPU for control processing, a communication driver DR for high-speed communication, and a communication driver DR 'for low-speed communication.
The control microcomputer CPU receives an analog input signal from an analog sensor that detects continuously changing information such as a potentiometer, and a pulse input signal from a pulse sensor that detects the number of revolutions and the like. At the same time, a drive signal for an engine stop solenoid SOL for stopping fuel supply to the engine E and stopping the engine, and a drive signal for a buzzer 48 and a warning lamp 49 for warning are output.
As the analog input signal, detection signals from the unloader position sensor S3, the rolling sensor S4, the ultrasonic sensor S6, the sheave sensor S10, the cutting and lifting detection sensor S12, the steering operation detection sensor S13, and the accelerator position sensor S17. The detection signals from the vehicle speed sensor S7 and the second rotation sensor S16 are input as the pulse input signal, and further, an off state in which power supply from a battery (not shown) to various parts of the vehicle body is turned off, A signal from a power-on main switch MW that can be switched between an ON state in which power is supplied to each part of the vehicle body from an ON state and an operating state of a starting device (constituted by a cell motor (not shown)) for starting the engine E is output. Has been entered.
[0037]
The control microcomputer CPU includes a built-in memory RAM such as a control data storage RAM, and is connected to a nonvolatile memory MEM such as an EEPROM. The memory RAM includes detection data of sensors and the like. The input data of the switches of the switch modules MU1 to MU3, the drive data for the actuators AK, and the like are stored. The nonvolatile memory MEM stores various types of error information generated during machine operation (self-diagnosis described later). Data) are stored.
[0038]
The microcomputer CPU of the central control unit CU has a serial communication interface function as a standard function. On the other hand, as shown in FIG. 14 and FIG. The controller 29 for signal processing is similarly constituted by a one-chip microcomputer or the like having a serial communication interface function as a standard function. The central control unit CU directly communicates with each of the modules MU1 to MU4 via the low-speed communication line T2 by using both the serial communication interface functions provided in the central microcomputer CPU and the controller 29 of each module. It is configured to execute a low-speed communication process between them.
More specifically, the central control unit CU sequentially designates the addresses set for the modules MU1 to MU4 and sequentially receives data (such as manual switches and adjustments) from the modules MU1 to MU4 by the polling selecting method. The input of the data for the respective modules MU1 to MU4 (the display data of each lamp and the display unit) is performed.
[0039]
As shown in FIG. 15, in the display module MU4, each detection signal from the fuel (fuel) sensor, the water temperature sensor, the engine speed sensor S5, the oil switch, and the output voltage of the alternator are input to the controller 29. Then, based on these input signals and the display data transmitted from the central control unit CU, the controller 29 controls the fuel meter 70a, the tachometer 70b, the water temperature meter 70c, the fir LCD 70d, the main LCD 70e, the sub shift lamp 70h, The display operation of the check lamp 70g1 is performed. The controller 29 transmits detection information from the engine speed sensor S5, the fuel sensor, the water temperature sensor, and the like in response to a transmission request from the central control unit CU.
On the other hand, the left and right turn signal lamps 70f are turned on by turning on the respective turn signal switches, the charge lamp 70g4 is turned off by the output voltage from the alternator, the brake lamp 70g3 is turned on by the turn on operation of the brake switch, and the oil lamp 70g2 Lights up when the oil switch is turned on.
Further, each information of the check switch 71 and the display changeover switch 72 is also input to the controller 29. It should be noted that the display changeover switch 72 is used for operating time information (hereinafter, referred to as an hour meter) of the machine and for the battery.StorageIt is used to switch the display contents of the main LCD 70e so that battery information (specifically, battery voltage) indicating the state is displayed for a predetermined time (for example, 5 seconds) (see FIG. 16A). .
[0040]
Image display means GH for displaying notification information to be notified to an operator as image information is configured by the main LCD 70e, and controls the notification information so that the notification information is displayed on the main LCD 70e. The display control means CU is configured by the central control unit CU. Then, when the vehicle speed sensor S7 detects that the combine is not running, the central control unit CU determines the rotation speed of the engine E based on the detection information of the engine rotation speed sensor S5. When it is detected that the engine speed has changed by more than a set rotation speed (for example, 10 rpm), the main LCD 70e is configured to display the rotation speed information of the engine E as the notification information. Specifically, as shown in FIG. 16B, the central control unit CU is configured to display the information on the number of revolutions of the engine E as numerical information. Further, the central control unit CU is configured to display the rotation speed information of the engine E on the tachometer 70b based on the detection information of the engine rotation speed sensor S5.
[0041]
Further, when the threshing unit 2 is in the non-driving state based on the information of the threshing switch S9, the central control unit CU displays the rotation speed information of the engine E on the main LCD 70e. Is in a driving state, the load information of the engine E is configured to be displayed on the main LCD 70e, and after the main switch MW is switched from the off state to the on state, the starting device (cell motor) The main LCD 70e is configured to display the hour meter and the battery information until the main LCD 70e is switched to the operation state of (1).
[0042]
When executing each control, the central control unit CU transmits each input of sensors SW and switches transmitted from each of the high-speed terminal units LU1 to 5 and each of the modules MU1 to 4 via the communication lines T1 and T2. Based on the data, the proper drive contents for the actuators AK are determined, and the proper drive contents are transmitted as drive data to the high-speed terminal LU connected to the actuators AK via the communication line T1, and the actuators AK are transmitted. Is connected to the high-speed terminal unit LU to output a drive signal to the actuators AK based on the received drive data.
[0043]
For example, specifically describing the case of the cutting height control, the central control unit CU communicates with the basic switch module MU1 to activate the cutting height control start switch 44a provided in the cutting height control operation unit 44. When it is determined to be on, the cutting height is maintained at the target height based on the target height information input by the cutting height adjustment volume 44b and the ground height information of the ultrasonic sensor S6. The appropriate driving content for the cutting and lifting cylinder 5 is determined, and the proper driving content is transmitted as control data to the high-speed terminal unit LU1 to which the cutting and lifting cylinder 5 is connected. Then, the high-speed terminal unit LU1 outputs a HIGH signal from one of the port output terminals a and b of the gate array GA2 and outputs a LOW signal from the other according to the received control data to switch one of the solenoids L1 and L2. By driving, the mowing lift cylinder 5 is moved up and down.
[0044]
Further, the central control unit CU performs the lamp control based on the input data of the sensors SW and the switches transmitted from the high-speed terminal units LU1 to 5 and the modules MU1 to 4 via the communication lines T1 and T2. The proper display contents to be displayed on various display means such as a display and an LCD display are determined, and the proper display contents are transmitted as display data to each of the modules MU1 to MU4 via the communication line T1. 4 are configured to output drive signals to the display means based on the display data received from the central control unit CU.
[0045]
More specifically, the case of the cutting height control will be described. When the central control unit CU confirms the ON state of the starting switch 44a of the cutting height control based on the data received from the basic switch module MU1, the central control unit CU issues a command to the basic switch module MU1. Then, while transmitting command data for turning on the start switch 44a configured as an illuminated switch, the display module MU4 transmits a display command for displaying a cut height control start message on the main LCD 70e. Then, the basic switch module MU1 turns on the cutting height control start switch 44a according to the lighting command data received from the central control unit CU, and the display module MU4 operates according to the display command received from the central control unit CU. A message of "cutting height automatic [on]" is displayed on the main LCD 70e for a predetermined time (for example, 5 seconds).
When the cutting height control start switch 44a is turned off, a message of "cutting height automatic [off]" is displayed on the main LCD 70e for a predetermined time (for example, 5 seconds). The value of the target cutting height changed by the cutting height adjustment volume 44b based on the communication between the central control unit CU and the display module MU4 also when the target height information is changed by operating the 44b. Is displayed on the main LCD 70e as a bar graph.
[0046]
Next, a control operation by the central control unit CU will be described based on flowcharts shown in FIGS.
In the main flow (FIG. 20), the main switch MW is operated from the off state to the on state to be turned on, and power is supplied to the central control unit CU (at this time, each of the high-speed terminal units LU1 to LU5 and When the control is started, the on / off state of the check switch 71 is detected. If the check switch 71 is on, the mode is started to the fine adjustment mode. On the other hand, if the check switch 71 is off, the normal mode is started. If the check switch 71 is turned on and off in this normal mode, the self-diagnosis mode is started if the check switch 71 changes to the on state. .
[0047]
In the fine adjustment mode, the actual operation state of each machine part is detected from the detection information of each sensor in association with the detection information of each sensor when the machine parts such as the mowing unit 1 and the threshing unit 2 are in the reference state. Information of a reference value to be obtained (referred to as fine adjustment data) is stored in the memory MEM.
Specifically, fine adjustment data as exemplified below is stored.
(1) The value detected by each direction sensor S1 at that time, with the state where each of the left and right direction sensors S1 has returned to the aircraft lateral direction position as a reference state
(2) The detection value of the cutting elevation sensor S12 when the cutting unit 1 is raised to the upper limit position as a reference state.
(3) Detection value of the unloader position sensor S3 when the unloader 32 is turned to the home position as a reference state as a reference state
(4) The detection value of the rolling sensor S4 when the aircraft V is set in the horizontal state as the reference state
[0048]
In the normal mode, as shown in FIG. 21, a communication control process for communicating with each of the high-speed terminal units LU1 to 5 and each of the modules MU1 to MU4, a management process of the broadcast information, a display control process, and A work control process for executing a plurality of controls is performed. In this work control processing, the actual operation state of each part of the machine is obtained based on the detection information of each sensor and the information of the stored fine adjustment data, and the actual operation state of the actuators AK is determined based on the information of the actual operation state. Control the operation.
[0049]
In the display control process, as shown in FIGS. 22 to 23, first, it is determined whether or not alarm information with a high degree of urgency to be notified has occurred. There are two types of alarm information according to the degree of urgency.
FIG. 18 shows first alarm information having a higher degree of urgency. (A) “Cut clogging” indicating that clogging of the grain stalk in the cutting unit 1 is detected by the cutting clogging detection switch S14. (B) indicates "cutter jam" indicating that the clogging of the straw is detected by the cutter jam detection switch S15, and (c) indicates the second conveying device 63 by the second rotation sensor S16. "No. 2 clogging" indicating that the clogging of the second product is detected in (2), and (D) indicates that the full state of the grain in the storage tank 3 is detected by the fir sensor S11. (E) indicates that the detection state of the tip sensors S8a and S8b is abnormal due to the attachment of straw waste and the like, and indicates that an inspection is required. Indicates overload status "Please deceleration" as to load warning, or a respective display of "Please deceleration" as sheave alarm indicating that processing amount detected by the Shibusensa S10 it is is excessive.
FIG. 19 shows the second alarm information having a lower urgency. FIG. 19A shows “out of fuel” indicating that the remaining fuel amount detected by the fuel sensor is small, and FIG. Each of "battery insufficiency" indicating that the battery, which is a battery, is in an insufficient state, and "(overheat)" indicating that the engine E is overheated is detected by the water temperature sensor. It is.
[0050]
When the first alarm information is generated, the first alarm information is continuously displayed on the main LCD 70e until the abnormality is eliminated, and the alarm buzzer 48 and the alarm lamp 49 are continuously operated. Although not shown, at the same time, in each of the cases shown in FIGS. 18 (a), (b) and (c), the operation of stopping the engine E is executed in the work control process together with the above-mentioned alarm display.
When the second alarm information is generated in a state where the first alarm information is not generated, the second alarm information is repeatedly displayed on the main LCD 70e at a set time interval for a predetermined time until the abnormality is eliminated. (For example, display every 30 seconds for 3 seconds), and at the same time as displaying the second alarm, the alarm buzzer 48 and the alarm lamp 49 are operated.
[0051]
When the alarm information has not been generated, it is determined whether or not the self-diagnosis data has been generated. As the self-diagnosis data, as illustrated in FIG. 17, detection errors of the volumes and sensors (for example, when values become impossible or values do not change at all), actuators such as motors, etc. Is managed and displayed (for example, when the operation is locked or does not operate at all). In FIG. 17, (a) is a "crop selection SW failure" representing a failure of the crop switching volume 41b, (b) is a "vehicle speed limitation VR failure" representing a failure of the vehicle speed limitation volume 42b, and (c) is the sheave sensor. (D) shows an example in which "Sheve sensor failure" indicating a failure in S10 is displayed, and "(Chaff motor failure)" indicates a failure in the chaff opening adjustment motor M4.
Other than the above, self-diagnosis data includes “fine adjustment data error”, “model data error”, “unloader storage position error”, “chaff fully open value error”, “chaff fully closed value error”, “toumi fully open value error” , "Torumi fully closed value error", "Unloader sensor failure", "Unloader motor failure", "Unloader manual switch failure", "Chaff sensor failure", "Tumi sensor failure", "Tumi motor failure", "Chaff adjustment volume failure", "Toumi adjustment volume failure", "engine rotation input error", "acceleration output error", "deceleration output error", "electric brake error", "direction right output error", "direction left output error", etc. are managed. Is displayed.
[0052]
When the self-diagnosis data is generated, the check lamp 70g1 is turned on, and it is determined whether the check switch 71 is turned on, except when the self-diagnosis data is already displayed. I do. When the check switch 71 is turned on, the self-diagnosis data is displayed on the main LCD 70e. Then, when the check switch 71 is turned on again while the self-diagnosis data is being displayed, the check lamp 70g1 is turned off, the display of the self-diagnosis data is turned off, and the display is returned to the normal display state.
[0053]
In the normal display state, the main LCD 70e displays the hour meter and the battery voltage information after the main switch MW is operated from off to on until the engine E is started. After the engine E is started, the engine speed is displayed on the main LCD 70e until the threshing unit 2 is driven, and the load level and the sheave level are displayed on the main LCD 70e as the threshing unit 2 is driven. To be displayed. During the display of the load level and the sheave level, the vehicle speed sensor S7 detects that the combine is not running, and furthermore, that the rotation speed of the engine E has changed by more than a set rotation speed (for example, 10 rpm). When detected, the display of the load level and the sheave level is switched to the display of the engine speed. At this time, the tachometer 70b displays the rotation speed information of the engine E based on the detection information of the engine rotation speed sensor S5.
[0054]
In the self-diagnosis mode, as shown in FIG. 24, the information of the self-diagnosis data stored in the memory MEM is read and displayed on the main LCD 70e. When the check switch 71 is pressed, the self-diagnosis mode ends.
[0056]
[Another embodiment]
Next, another embodiment will be described.
the aboveFirst embodimentIn the above, the manual rotation speed adjusting means is constituted by the accelerator lever 78, but may be constituted by other means such as a manual volume.
[0057]
the aboveFirst embodimentIn the above, the image display means GH is configured by the LCD display 70e, but may be configured by another image display device (for example, a CRT display device).
[0058]
the aboveFirst embodimentIn the embodiment, the rotation speed detecting means is configured by the electromagnetic pickup type engine rotation speed sensor S5, but may be configured by another engine rotation speed sensor.
[0059]
the aboveFirst embodimentIn the embodiment, the traveling state detecting means is constituted by the vehicle speed sensor S7, but may be constituted by, for example, a neutral switch for detecting the neutral state of the continuously variable transmission 39.
[0061]
the aboveFirst embodimentIn the above, the display control unit CU is configured to display the rotation speed information of the engine E as numerical information. Alternatively, the rotation control information of the engine E may be displayed as a bar graph image, for example. .
[Brief description of the drawings]
FIG. 1 is an overall side view of a combine.
FIG. 2 is a front side view of the combine.
FIG. 3 is a schematic plan view of the combine.
FIG. 4 is a longitudinal sectional side view of a threshing unit.
FIG. 5 is a power transmission diagram of the combine.
FIG. 6 is a diagram showing an engine speed change adjusting means;
FIG. 7 is a plan view of a control unit.
FIG. 8 is a front view of a basic switch module.
FIG. 9 is a front view of the unloader switch module.
FIG. 10 is a front view of the horizontal control switch module.
FIG. 11 is a front view of a display module.
FIG. 12 is a block diagram showing the entire control configuration of the combine;
FIG. 13 is a circuit block diagram showing a main part of a combine control configuration.
FIG. 14 is a block diagram showing a control configuration of a switch module.
FIG. 15 is a block diagram showing a control configuration of a display module.
FIG. 16 is a diagram of a display screen in a normal display state.
FIG. 17 is a diagram of a display screen displaying self-diagnosis data.
FIG. 18 is a diagram of a display screen displaying alarm information.
FIG. 19 is a diagram of a display screen displaying alarm information.
FIG. 20 is a flowchart showing a control operation.
FIG. 21 is a flowchart showing a control operation.
FIG. 22 is a flowchart showing a control operation.
FIG. 23 is a flowchart showing a control operation.
FIG. 24 is a flowchart showing a control operation.
[Explanation of symbols]
2Threshing section
78 Speed adjustment means
CU display control means
E engine
GH image display means
KH RPM display means
MW main switch
S5 Revolution detection means
S7 running state detecting means
S9 Drive state detection means
sb indicator

Claims (4)

Image display means for displaying notification information to be notified to an operator as image information,
A display device of a combine provided with a display control unit that manages the notification information and controls the notification information to be displayed on the image display unit,
Drive state detection means for detecting whether the threshing unit provided in the combiner is in a drive state, and rotation number detection means for detecting the rotation number of the engine whose rotation number is changed and adjusted by manual rotation number adjustment means; Traveling state detecting means for detecting whether the combine is traveling or not,
The display control means, based on the information of the drive state detection means, when the threshing unit is in a non-drive state, displays the engine speed information on the image display means, the threshing unit is in the drive state In some cases, the load information of the engine is displayed on the image display means, and when the traveling state detection means detects that the combine is stopped, the rotation speed detection is performed. Based on the detection information of the means, when it is detected that the number of revolutions of the engine has changed by a set number of revolutions or more, it is configured to display the number of revolutions of the engine on the image display means as the notification information. Combine display device. A main switch is provided which can be switched between an off state in which power supply from the battery to each part of the vehicle body is turned off, an on state in which power supply from the battery to each part of the vehicle body is turned on, and an operation state of a starting device for starting the engine. The display control means, after the main switch is switched from the off state to the on state, until the operating state of the starting device is switched to the image display means, operating time information of the combine , The display device for a combine according to claim 1, wherein the display device is configured to display battery information indicating a storage state of the battery. The combine display device according to claim 1 or 2, wherein the display control means is configured to display information on the number of revolutions of the engine as numerical information. A rotation speed display means configured to move an instruction unit for instructing the detected rotation speed along a change in the rotation speed of the engine along a set path is provided,
Wherein the display control means, based on detection information of the rotation speed detection means, the rotational speed information of the engine in any one of claims 1 to 3 which is constructed so as to be displayed on the rotational speed display means The display device of the combine as described.

Images