JPH10337109A - Controller for working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the apparatus constitution for setting information about machine models as much as possible facilitate operations of an operator at the time of setting the information about the machine models. SOLUTION: This controller for a working machine is capable of successively displaying information about one machine model in information about the plural machine models stored in a memory 43a in a display means 18 by manually operating a changeover means JW, turning off a main key MW in the state of the displayed information about the one machine model thereof, turning off the power feed for feeding the power from a driving power source Bat to each part of the machine, then setting the displayed information about the machine model as the set information about the machine model and performing the control corresponding to the machine model to be an object of the control specified based on the set information about the machine model.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work machine control device provided with control means for specifying a model to be controlled based on set model information and executing control corresponding to the specified model. .

[0002]

2. Description of the Related Art In a working machine such as a combine machine, in order to realize a common control unit and a low cost, a control unit having a control configuration capable of supporting all of a plurality of models developed in a series is shared. However, when actually setting the model information to be controlled, while switching and displaying a plurality of model information on the display means with the changeover switch, while operating the model setting switch when the target model is displayed, The displayed model is set as set model information by an operation of turning off the main key for starting the engine (for example, see Japanese Patent Application Laid-Open No. 9-62311).

[0003]

However, in the above prior art, when the main key is turned off to set the displayed model, it is necessary to operate the model setting switch at the same time. There is a problem that the configuration is complicated and the setting operation of the model information is troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has as its object to simplify the apparatus configuration as much as possible in order to solve the above-mentioned disadvantages of the prior art, and to make it easy for an operator to set model information. The purpose is to facilitate operation.

[0005]

According to a first aspect of the present invention, one of the plurality of stored model information is sequentially displayed on the display means by manually operating the switching means, and the one model information is displayed. When the power supply that supplies power from the drive power supply to each machine section is turned off in this state, the displayed model information is set as the set model information, and the model to be controlled based on the set model information is set to the specified model information. The corresponding control is executed.

Therefore, in a state where the target model information is displayed by switching from a plurality of pre-stored model information, simply turning off a main key or the like in order to turn off the power supply from the driving power supply to each machine section. Since the model information is set in, the number of switches is reduced and the device configuration is simplified compared to the conventional case where the model setting switch must be operated at the same time when the main key is turned off. Therefore, the operation of the operator can be simplified.

According to a second aspect of the present invention, in the first aspect, the power supply is turned on when the switching means is in one of two different operation states, and the other power supply is turned on while the power supply is on. Activates the inspection mode when changes to,
In the inspection mode, setting of the set model information is performed by turning off the power supply while sequentially switching the switching means between the two operation states and displaying the model information.

Accordingly, for example, a special operation in which the normal control mode is activated simply by turning on the power supply, while the power supply is turned on and activated while switching the switching means between two different operation states. Since the model is set in the inspection mode activated by the procedure,
In a normal control mode or the like, there is no possibility that the model is set by erroneously operating a switch, and the model information can be accurately set. Thus, the preferred means of the present invention can be obtained.

According to a third aspect of the present invention, in the switching means of the second aspect, one of a state in which a pair of signal terminals connecting and disconnecting an information path in the control means is connected or separated. The inspection mode is activated when the power supply is turned on during the operation state and changes to another operation state while the power supply is on.

Therefore, the switching means is constituted by a jumper wire type or the like provided in the apparatus so that the setting operation of the model information cannot be performed unless a service person or the like is provided. When the switching means is constituted by the switch, the setting of the model information can be performed more accurately than when the driver or the like may erroneously perform the model setting operation. can get.

According to a fourth aspect, in the second or third aspect,
In the inspection mode, the switching unit is operated to switch to an input inspection state, an input inspection is performed on a sensor that detects an operation state of each part of the machine, and the output inspection state is
An output test is performed on an actuator for operating each part of the machine.

Therefore, the inspection mode can be switched by a single switching means, and the inspection of the sensor and the actuator can be performed together with the setting of the model information, whereby the preferred means of the second or third aspect is obtained.

According to a fifth aspect, any one of the first to fourth aspects is provided.
In the paragraph, the rotational speed of the power unit whose rotational speed is changed by the manual rotational speed adjusting unit is detected, and the indicating unit for instructing the detected rotational speed of the power unit on the rotational speed display unit moves along the set path. In the case, among the information on the plurality of appropriate rotation speeds provided for the plurality of models, the appropriate rotation speed of the model corresponding to the set model information is changed and set as the setting rotation speed to be set by the rotation speed adjusting means. In any of the set rotation speeds, by a reading display unit provided along the movement path of the instruction unit, whether the rotation speed of the power unit is the changed set rotation speed,
In addition, the moving position of the indicator with respect to the rotation speed of the power unit is adjusted so that the load of the power unit can be read as the rotation speed reduction amount from the changed set rotation speed.

[0014] Therefore, by operating the rotation speed adjusting means such as the accelerator lever while observing the position of the instructing portion which moves according to the rotation speed, the power device such as the engine can be favorably adjusted to the set rotation speed. Even when the set rotation speed is changed depending on the model, the same reading display unit can also be used to read whether the rotation speed is the set rotation speed or the load on the power unit. When a load indicator is provided separately from the device, the device configuration can be read in the display of the engine speed with a simple configuration, compared to the complicated and expensive device configuration. When changing the number of revolutions, a model that can respond to the same reading and displaying unit with a simple configuration that only adjusts the moving position of the indicating unit, and that corresponds to the set model information By changing the appropriate rotation speed as the above-mentioned set rotation speed, for example, the change of the set rotation speed accompanying the change of the model can be performed easily and without errors compared to a case where the information of the appropriate rotation speed of each model is directly input. Therefore, a suitable means according to any one of claims 1 to 4 can be obtained.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a combine as a working machine will be described below with reference to the drawings. As shown in FIG. 1, the combine is provided with a mowing unit 1 at a front portion of an airframe V having a pair of right and left crawler traveling devices 3, and a maneuvering unit 2 behind the mowing unit 1.
A threshing unit 4, a diesel engine 5 as a power unit, a transmission unit 6 for the crawler traveling device, and the like are provided.

The cutting unit 1 includes an ultrasonic sensor S0 for detecting the height of the cutting unit 1 from the ground, and turns on when the cut stalk is touched to detect that the cutting operation is being performed. A stock sensor S1 is provided. The information of the ultrasonic sensor S0 is used for cutting height control when cutting a grain culm, and the information of the stock sensor S1 is used as a condition when starting control for work.

As shown in FIG. 2, the control section 2 includes a control tower 10, a driving seat 11, and a left side of the driving seat 11 provided with a steering lever 8 and an instrument device 9 for controlling the steering of the machine body V and lifting and lowering of the reaping section 1. And an operation box 12 provided with an accelerator lever 7 and the like, a floor step 13 and the like.

Next, FIG. 3 shows a power transmission system. The output of the engine 5 is transmitted to the threshing unit 4 via the threshing clutch 21 and the traveling clutch 22 and the continuously variable transmission 23
Is transmitted to the mission unit 6 via the Part of the output transmitted to the mission unit 6 is transmitted to the reaping unit 1 via the reaping clutch 24. S2 is a threshing switch for detecting the on / off state of the threshing clutch 21, and S3 is a vehicle speed sensor provided in the transmission unit 6 for detecting a vehicle speed. or,
The transmission unit 6 is provided with a switching mechanism for switching the steering state to forward, reverse, and neutral states in conjunction with the stepless transmission 23 being operated to shift forward or backward. A neutral switch S4 for detecting the neutral state of the steering and a reverse switch S5 for detecting the reverse state are provided (see FIG. 7).

As shown in FIG. 4, the governor 2 of the engine 5
7 is returned to the starting position by a spring or the like (not shown), and is manually operated by the accelerator lever 7 provided on the control unit 2 in conjunction with the release wire 26. The accelerator lever 7 can be held at the current operating position by the friction holding mechanism 25. That is, the speed adjusting lever 28 is swung to a desired position by the accelerator lever 7 as a manual type rotational speed adjusting means, and the rotational speed (output) of the engine 5 is changed and adjusted. Normally, after operating the accelerator lever 7 to the starting position to start the engine 5,
While watching the display of the tachometer 17 described later, the user operates the output increasing side so as to reach the rated rotation speed which is the set rotation speed for work.

As shown in FIG. 7, a control device 43 is provided using a microcomputer. The control device 43 includes an ultrasonic sensor S0, a stock sensor S1,
Each detection information of the threshing switch S2, the vehicle speed sensor S3, the neutral switch S4, and the reverse switch S5 is input,
Further, detection information of a frequency detector 42 for detecting a power generation frequency (pulse signal) of the dynamo 41 is also input to the control device 43. Here, since the power generation frequency of the dynamo 41 corresponds to the rotational speed of the engine 5, the frequency detector 42 constitutes a rotational speed detecting means for detecting the rotational speed of the engine 5. The sensors S0 to S5 and 42 constitute a sensor SN for detecting the operating state of each part of the machine.

The control device 43 is provided with a nonvolatile memory 43a for storing information.
Information on a plurality of models of the combine and information on a rated speed as an appropriate speed for each model (for example, models 1, 2,
3 as 2700,
2900, 3000 rpm) and set model information set as described later among the plurality of models. That is, the memory 43a corresponds to a storage unit that stores a plurality of model information.

On the other hand, from the control device 43, the measuring device 9, the horn 14 for alarm, the LED display 18 as display means for displaying information, the cutting height comprising the solenoid valve for controlling the hydraulic circuit and the like. Each drive signal for the control actuator M1 and other actuators for vehicle speed control and threshing control (not shown) is output. Here, the cutting height control actuator M1 and the other control actuators constitute an actuator AK for operating various parts of the machine.

Then, the control device 43, based on the detection information of the sensors S0 to S5, 42, the set model information and other control information, etc., controls the instrument device 9 and the horn 1
4 and the actuators M1 for cutting height control and other actuators (not shown), such as vehicle speed control and threshing control, to execute various controls (cutting height control, vehicle speed control, threshing control, etc.). That is, the control device 43 configures a control unit that specifies a model to be controlled based on the set model information and executes control corresponding to the specified model. Although not described in detail, a control program for all models to be controlled is stored in the memory 43a in advance, and only a control program for the specified model is stored in another memory such as a RAM and used.

A drive power supply Bat composed of a battery is provided to supply power to each part of the machine, and power (power supply voltage) from the drive power supply Bat is supplied to the control device 43 via the main key MW. . Also, the driving power supply Ba
The power supplied from t is stored in a capacitor in advance, and a predetermined time (several seconds) after the main key MW is turned off, the fuel for the control device 43 and the engine 5 (not shown) is replaced with the drive power Bat. A timer power supply 19 for supplying a voltage to a solenoid circuit or the like for stopping the supply is provided. The driving power supply Bat is charged by the dynamo 41 while the engine 5 is operating.

As shown in FIG. 6, the meter device 9 is provided with a tachometer 17 for analog display of the engine speed by the movement of the indicator hand 17a, and various indicator lights. That is, 29 is a rice clogging warning light, 30 is a cutter clogging warning light, 31 is a blinker lamp, 32 is a water temperature warning light, 33
Is an oil warning light, 34 is a charging warning light, 35 is an hour meter, 36 is a remaining fuel amount display light, and 37 is a load warning light.

The control device 43 receives a signal from a jumper switch JW as a manually operated switching means. That is, the jumper switch JW is controlled by the control device 4 so as to be switchable between two different operation states.
3 is provided with a pair of signal terminals p1 and p2 that can be combined or separated so as to intermittently connect and disconnect the information path in 3, and the pair of signal terminals p1 and p2 are combined (inserted state).
And a state in which the pair of signal terminals are separated (a state in which the signal terminals are disconnected) corresponds to each of the two different operation states. In addition, this jumper switch J
W and the LED display 18 are installed inside the device,
It is provided on a circuit section on which the control device 43 is mounted.

The indicator needle 17 as an indicator for instructing the detected rotational speed with the change in the rotational speed of the engine 5 using the tachometer 17 and the control device 43.
The rotation speed display means 100 is provided so that a moves along a set path (in the figure, a left-right arcuate path).

The tachometer 17 has a reading display YH provided along the movement path of the pointer 17a for reading the position of the pointer 17a, and the number of revolutions of the engine 5 is set by the accelerator lever 7. It is provided so as to be able to freely read whether or not the rated rotation speed to be performed, and to be able to read the load of the engine 5 represented by the amount of reduction in the rotation speed from the rated rotation speed of the engine 5.

The reading and displaying section YH has a plurality of load display portions indicating the loads of the engine 5 in a plurality of stages. Specifically, it is in an appropriate load state (appropriate rotation area a in the figure) in which the amount of decrease in the number of revolutions of the engine 5 is smaller than the set value on the small side so as to represent three stages of loads in the high rotation area F for work. And an appropriate load display section 38 for displaying that the load reduction state is in the load caution state (caution rotation range b in the figure) between the small side set value and the large side set value. A load caution display unit 39 and a load alarm display unit 40 for displaying that the load is in a load alarm state (the alarm rotation range c in the figure) in which the amount of decrease in the number of revolutions is greater than the set value on the large side.
It consists of.

Each of the display sections is color-coded so as to be identifiable. Specifically, the appropriate load display section 38 is colored green, the load caution display section 39 is colored yellow, the load alarm display section 40 is colored red, and the rated rotation range d indicating the rated rotation range d within the appropriate rotation range a. The display 38a is formed in white. Thus, whether or not the engine speed is the rated speed or the load state can be quickly and visually recognized.

The load status of the engine 5 is controlled by the load warning light 37 and the horn 14 to indicate the proper load condition,
In order to selectively notify either the load caution state or the load alarm state, the control device 43 sets the load warning light 37 in the load caution state based on the detection information of the frequency detector 42. In the load alarm state, the load warning light 37 is flashed and the horn 14
Is operated intermittently, and the operation of the load warning light 37 and the horn 14 is stopped in an appropriate load state.

Using the control device 43, a plurality of proper rotation speeds (the rated rotation speed k of each model)
1, k2, k3), and a rotation speed changing means 101 configured to change and set, as the rated rotation speed, an appropriate rotation speed of a model corresponding to the set model information among the plurality of proper rotation speeds. I have.

The set rotation speed changing means 101 stores information on a threshold rotation speed corresponding to a boundary position between adjacent load display portions in the plurality of load display portions 38, 39, 40 for the plurality of models. And information on the threshold rotation speed of the model corresponding to the model information is selected from among the threshold rotation speeds for the plurality of models.

Specifically, in order to set the characteristic of the deflection angle of the pointer 17a in the models 1, 2 and 3 shown in the graphs 1, 2 and 3 in FIG.
In addition to the data of 1, k2, k3 and their allowable rotation speed Δk, the maximum rotation speed km and the low-speed rotation speed k common to each model
n, proper load display section 38 (area a) and load caution display section 3
The value kab1, kab2, kab3 for each model regarding the threshold rotation speed at the boundary with 9 (region b), the load caution display unit 3
Values kbc1 and kbc for each model about threshold rotation speed at the boundary between 9 (b region) and load warning display unit 40 (c region)
2, kbc3, and values kc1, kc2, k for each model regarding the lower limit rotation speed of the load alarm display section 40 (area c).
c3 is stored in the memory 43a of the control device 43.

The rotational speed display means 100 displays the rotational speed of the engine 5 by the reading display unit YH at any of the rated rotational speeds k1, k2, and k3 changed by the set rotational speed changing means 101. Can be read as the changed rated speed k1 or k2 or k3, and the load of the engine 5 can be read as the amount of decrease in the speed from the changed rated speed. On the basis of the information of the set rotation speed changing means 101, the pointer 17 for the rotation speed of the engine 5 is displayed.
It is configured to adjust the moving position of a.

In other words, the rotation speed display means 100 adjusts the moving position of the pointer 17a based on the information on the threshold rotation speed selected by the set rotation speed changing means 101 based on the model information, and a plurality of rotation speeds are displayed. Load display parts 38, 39,
According to 40, the load of the engine 5 is changed into a plurality of stages of loads (appropriate load state, load caution state, or load alarm state).
Is configured to be able to be read. Specifically, the pointer 17a moves along each of the graphs 1, 2, and 3 shown in FIG.
The stage of the load is read depending on which of (a region), the load caution display unit 39 (b region) and the load alarm display unit 40 (c region) is located.

Next, a mode switching function by the control device 43 and a function of setting model information will be described. That is, the control device 43 sets the jumper switch JW to 2
In one operation state of the two operation states (for example, a state in which a pair of signal terminals p1 and p2 are connected), the power supply for supplying power from the driving power supply Bat to each machine unit by the main key MW is turned on, and When the power supply is on, the inspection mode is activated as the jumper switch JW changes to another operation state (a state in which the pair of signal terminals p1 and p2 are disconnected).

In the inspection mode, the control device 43 sets the terminals p1 and p of the jumper switch JW.
2, an input inspection state in which an input inspection is performed on the sensor SN,
It is configured to be freely switchable to an output inspection state in which an output inspection for K is performed. Although not described in detail, in the input inspection state, for example, when the stock sensor S1 is swung by hand, the symbol (for example, S1) is displayed on the LED display 18.
Is displayed, and it can be confirmed that the stock sensor S1 is detecting and operating. In the output inspection state, for example, the cutting unit 1 is moved up and down, and at the same time, the symbol (for example, M1) of the cutting height control actuator M1 is displayed on the LED display 18 to confirm the operation of the cutting height control actuator M1. it can.

At the same time, each time the jumper switch JW is operated in the model setting mode in the inspection mode (for example, by pulling out and inserting the pair of signal terminals p1 and p2), the plurality of model information stored in the memory 43a is read. One of the model information is sequentially displayed on the LED display 18, and the power is turned off by turning off the main key MW in the model display state. Set as information. This model setting operation is executed within a predetermined time during which power is supplied from the timer power supply 19.

The control operation of the control device 43 will be specifically described based on the time chart shown in FIG. First,
The main key MW is turned on with the terminals p1 and p2 of the jumper switch JW connected, and the terminal p
When 1, p2 is omitted, the inspection mode is activated, and first, the sensor SN enters the input inspection state. And the terminal p
When an operation of pulling out by inserting 1 and p2 is performed, the state is switched to the output inspection state for the actuator AK. When the operation of disconnecting the terminals p1 and p2 is further repeated, one of the plurality of model information is displayed on the LED display 18.
When the main key MW is turned off in the model display state, the display model (model 2 in the figure) at that time is set as a control target model, and the set model information is stored in the memory 43a. Note that, when the operation of further removing the terminals p1 and p2 from the display state of the last model is performed, the state returns to the input inspection state for the sensor SN.

[Alternative Embodiment] In the above embodiment, the manually operated switching means JW is constituted by a switch which can be switched between two different operating states. However, the present invention is not limited to this.
For example, a simple push button switch may be used.

In the above embodiment, the display means 1 for displaying information is provided.
Although 8 is constituted by an LED display, it is not limited to this, and may be, for example, a liquid crystal display.

In the above embodiment, the manually operated switching means JW and the display means 18 for displaying information are provided inside the apparatus. However, the present invention is not limited to this. It may be provided on a panel or the like.

In the above embodiment, the rotation speed display means 100
Is configured using the tachometer 17 and the control device 43,
Information about the number of revolutions of the power unit (engine 5) is input to the control device 43 to perform electrical processing, and the control device 43 controls the driving of the indicator 17a of the tachometer 17 based on the processing result. As described above, the rotation speed display means 100
The present invention is not limited to such a configuration. For example, the indicator 17a may be driven by a signal obtained by converting a rotation speed detection signal from the frequency detector 42 by a hardware circuit.

In the above embodiment, the high rotation range F
Although the deflection angle of the pointing unit 17a is changed linearly (see FIG. 5), the present invention is not limited to this. For example, the deflection angle may be changed in an arc shape.

In the above-described embodiment, the reading display section YH reads the load of the power unit 5 in a plurality of stages (three stages) by dividing the display area. It is also possible to attach a scale with a number such as 1, 2, 3, etc., to the path on the low rotational speed side from the position, and to read as the load on the scale on which the pointer 17a is located increases as the number increases. .

The rotation speed display means 100 is not a tachometer 17 having an indicator needle 17a as an indicator but a liquid crystal or LE.
In a bar graph display device such as D, the tip of the lit bar (corresponding to the indicating unit) may move in a set direction according to a change in the number of revolutions.

The manual rotation speed adjusting means is not limited to the accelerator lever 7 and may be constituted by, for example, a volume. In this case, an electric signal from a volume or the like is input to the control device, and the control device drives the actuator to change the rotation speed of the power device.

The power unit is not limited to the diesel engine 5, but may be another internal combustion engine, an electric motor, a hydraulic motor, or the like.

The rotational speed detecting means is not limited to the frequency detector 42 for detecting the power generation frequency of the dynamo 41. For example, an electromagnetic force for applying a magnetic field to the flywheel ring gear of the engine 5 to detect a frequency corresponding to the number of teeth. A pickup type rotation speed sensor may be used.

[Brief description of the drawings]

FIG. 1 is a side view of a combine.

FIG. 2 is a plan view of a control unit.

FIG. 3 is a power transmission diagram of the combine.

FIG. 4 is an explanatory view of an operation unit of the engine.

FIG. 5 is a diagram showing a relationship graph between an engine speed and a deflection angle of a tachometer pointer.

FIG. 6 is a plan view showing an instrument device.

FIG. 7 is a block diagram showing a control configuration of the combine.

FIG. 8 is a time chart showing a control operation in an inspection mode.

[Explanation of symbols]

 Reference Signs List 5 power device 7 rotation speed adjusting means 17a indicating unit 18 display means 42 rotation speed detecting means 43 control means 43a storage means 100 rotation speed display means 101 setting rotation speed changing means AK actuator JW switching means p1, p2 signal terminal SN sensor YH reading Display

Claims (5)

[Claims] 1. A work machine control device provided with control means for specifying a model to be controlled based on set model information and executing control corresponding to the specified model, comprising: A storage unit for storing information, a manually operated switching unit, and a display unit for displaying information are provided. Each time the switching unit is operated, the control unit stores a plurality of information stored in the storage unit. One type information of the type information is sequentially displayed on the display means, and when the power supply for supplying electric power from the driving power supply to each part of the machine is turned off in the type display state, the displayed type information is displayed. Is set as the set model information. 2. The switching means is configured to be switchable between two different operation states, and the control means turns on the power supply when the switching means is in one of the two operation states. And when the power supply is turned on, the switching unit is changed to another operation state to start an inspection mode, and the setting model information is set in the inspection mode. The control device for a work machine according to claim 1. 3. The switching means is provided inside a device,
The control means has a pair of signal terminals that can be combined or separated to interrupt the information path, and a state in which the pair of signal terminals are coupled and a state in which the pair of signal terminals are separated, The control device for a work machine according to claim 2, wherein the control device is configured to correspond to each of the two different operation states. 4. A sensor for detecting an operation state of each part of the machine; and an actuator for operating each part of the machine, wherein the control means operates the switching means in the inspection mode by operating the switching means. The control device for a work machine according to claim 2, wherein the control device is configured to be switchable between an input inspection state in which an input inspection is performed and an output inspection state in which an output inspection is performed on the actuator. 5. A rotational speed detecting means for detecting a rotational speed of a power unit whose rotational speed is changed and adjusted by a manual rotational speed adjusting means, and detecting the rotational speed of the power unit in accordance with a change in the rotational speed of the power unit. A rotational speed display means configured to move an instructing section along a set path; and a reading display provided along the moving path of the instructing section for reading a position of the instructing section. The unit can freely read whether or not the rotation speed of the power device is a set rotation speed to be set by the rotation speed adjusting means, and, based on a decrease in the rotation speed from the set rotation speed of the power device, The load of the power unit represented is provided so as to be readable, and includes information on a plurality of appropriate rotation speeds for the plurality of models, and among the plurality of appropriate rotation speeds, an appropriate one of the models corresponding to the set model information. Times Setting rotation speed changing means for changing and setting the number as the setting rotation speed is provided, and the rotation speed displaying means is provided by the reading display unit for any of the setting rotation speeds changed by the setting rotation speed changing device. It can be read that the rotation speed of the power unit is the changed set rotation speed, and
Based on the information on the set rotation speed changing means, the instruction unit for the rotation speed of the power device so that the load on the power device can be read as the rotation speed reduction amount from the changed set rotation speed. The control device for a work machine according to any one of claims 1 to 4, wherein the control device is configured to adjust a moving position.