AGRICULTURAL WORKING MACHINE AND METHOD FOR OPERATING AN AGRICULTURAL WORKING MACHINE

Description

[0001] The present invention relates to an agricultural working machine according to the preamble of claim 1 and to a method for operating an agricultural working machine according to the preamble of claim 8.

[0002] Agricultural machines are operated in conjunction with implements, for example, in soil cultivation, for sowing and planting, for applying pesticides or fertilizers, and for spreading liquid manure or solid manure. Some components of the implements are often hydraulically driven or operated by hydraulic cylinders. The necessary hydraulic supply pressure is provided by the agricultural machine, which has a hydraulic control system that controls valves. Hydraulic lines lead from the hydraulic valves to attachment areas on the machine, in which machine connections are arranged, each pair of which is assigned to a hydraulic valve. The implement has mating connections with which the implement can be connected to the machine connections to control a hydraulically operated adjustment element.An operating unit, which includes input and output devices and is connected to the control system via signals, is used to operate the control system.

[0003] It is necessary to coordinate the functions of the machine connections and the input devices of the control unit. To avoid malfunctions in the implement, a clear assignment of the interface, i.e., the hydraulic or electrical machine connections, to the individual input devices located on the operator's platform is essential. After connecting the implement, the operator must be absolutely certain that activating a specific input device on the control unit on the implement will trigger a specific adjustment function.

[0004] An agricultural work machine with a hydraulic control system that controls valves of the work machine, each of which is assigned a pair of machine connections to which at least one working device with mating connections for controlling a hydraulically actuated adjustment element can be connected, as well as with an operating unit that includes input and output means and is signal-connected to the control system, is known from EP 2 574 798 A2 and US 6,061,617 A. Other agricultural work machines are known, for example, from US 2002 / 157712 A1 and EP 2 803 254 A1.

[0005] The object of the present invention is to further develop an agricultural working machine with a hydraulic control system whose operation is simpler and more convenient, whereby assignment errors can be reliably avoided.

[0006] This object is achieved according to the invention by the features of device claim 1 and method claim 8.

[0007] Advantageous developments of the invention are the subject of the dependent claims. According to claim 1, an agricultural work machine is proposed with a hydraulic control system that controls valves of the work machine. Machine connections are assigned to the valves of the work machine in the attachment spaces of the work machine. At least one implement with mating connections for controlling a hydraulically actuated adjustment element of the implement can be connected to the machine connections. The work machine comprises an operating unit having input and output means. The operating unit is connected to the control system via signaling. The term "input means" encompasses any form of manually operable operating element that is configured to transmit a control command to the control system.The input means can thus comprise a console with one or more levers and / or switches and / or a keyboard, as well as, for example, a display device which has a separate keypad or is touch-sensitive. To improve and simplify operation, the hydraulic control system is designed such that a hydraulic function of the at least one connected implement, which can be executed by the adjusting element, and at least one control element of the control unit is directly assigned to each valve, wherein these assignments are stored in a data memory of the work machine so that they can be retrieved. The assignments specific to the implements can be stored in the data memory in the form of simple tables. It is also conceivable to store this data in a database stored in the data memory.The retrievable assignment of a control element to a valve reduces the workload for the operator, as they do not have to make the assignment themselves. In addition, the risk of incorrect operation is reduced, as each valve is already assigned a hydraulic function to be performed. The corresponding assignments for the connected implement are retrieved by entering or selecting the implement class. In this way, a hierarchical structure can be stored in the data memory, which branches off from a higher-level generic term to different work tasks. The generic terms characterize various areas of application in which the agricultural machine and the attached implement are used. Examples of generic terms that could be considered are arable farming, feed production, transport, or similar.The work tasks lead to further differentiation beneath a generic term. Work equipment classes are found beneath the respective work task. For further refinement, work equipment types can be listed manufacturer-specifically within the list of work equipment classes. The retrieval or suggestion of the function assignment of the valves of the work machine as well as the assignment of the operating elements can take place in conjunction with the input of a work task and / or a work equipment. For this purpose, different assignment profiles can be stored for the different work tasks or work equipment classes, which are suggested to the operator based on an input made. The advantage here is that the output medium, which can in particular be designed as a screen or a display terminal, can show the operator which function is controlled by which operating element.

[0008] According to the invention, the control system is designed to make the assignments depending on the functional characteristics of the connected implement. The functional characteristics of an implement represent the various hydraulic functions to which a specific control element of the control unit can be assigned. Individual hydraulic functions therefore only require two switching positions, which can advantageously be represented by a control element designed as a switch or the like. An example of this is the folding and unfolding of an implement for switching between field and road travel. In contrast, changing the working width or changing the pressure of a traction amplifier of the implement requires at least step-by-step or continuous adjustment, which can be more advantageously implemented by a slide or rotary control or the like.The control of an adjustment element of the implement, which results in a pivoting or rotating movement around an axis, can be carried out particularly well by an operating lever with several degrees of freedom, such as a joystick.

[0009] The control system can be configured to manipulate the stored assignments of a connected work device through inputs transmitted from the control unit to a control device. This allows an operator to individually adapt and save a previously stored assignment to their needs. Preferably, the adapted assignments can be individually saved in the data storage device so that they can be retrieved at a later time if necessary. These individually adapted assignments are particularly preferably personalized. This is advantageous when different operators use the work machine.

[0010] In a preferred embodiment, the control unit can be configured to visualize the hydraulic function assignment made by the control system using a symbol. The hydraulic function is represented by a unique symbol. The symbol can be designed based on the function, so that the operator can deduce the function assigned to the valve from the representation of the symbol.

[0011] In particular, the control unit can be configured to visualize a subfunction assigned to the respective control element using a symbol. The term subfunction describes a single, specific activation of the adjustment element or the associated valve by the control system, triggered by actuation of the control element or one of the control elements. The symbol assigned to the subfunction allows the operator to see at a glance which control element controls which subfunction of the implement. This effectively counteracts incorrect operation.

[0012] Furthermore, the control system can be configured to assign a hydraulic function to a valve and at least one control element to a valve based on inputs received by the control unit. This allows the operator to override an assignment selected based on the type or model of the implement. This may be necessary if the actual assignment of the machine connections and the mating connections does not correspond to the selected assignment.

[0013] According to the invention, the control system is configured to execute specific sequences stored in the data memory for a work implement model of the connected work implement, which define agricultural process steps through time- and / or distance-dependent power curves. Sequences are preferably used for frequently recurring process steps that require adjustment of the operating parameters of the work implement. Such sequences are used, for example, when driving on the headland to automate the sequence of process steps. For this purpose, various sequences can be stored in the form of general templates that are valid for at least one work implement model. The time- and / or distance-dependent power curves describe the control of the adjustment elements of the work implement during the individual process steps.

[0014] According to the invention, the control system is configured to manipulate the time- and / or distance-dependent power curves of a stored sequence through inputs received from the control unit. This allows the operator to adapt a sequence stored as a template to an actual sequence of process steps. In the simplest case, only the execution times of the power curves are adapted to the individual operating situation of the work machine and implement. Furthermore, adjustments to the power curves are just as conceivable as the addition of further time- and / or distance-dependent power curves.

[0015] According to the invention, the control system is configured to record a sequence for a work piece of equipment based on inputs transmitted by the control unit and store it in the data memory for retrieval. This allows the operator to create new, customized sequences for a specific work piece of equipment and store them in the data memory for retrieval.

[0016] A further development provides that the control system is configured to open a dialog when a connected implement is selected by input via the control unit. This dialog outputs the stored assignments for the connected implement via the control unit's output device for verification. This allows the operator to compare the actual pin assignment with the stored assignment of functions according to the selection made. This allows for a simple verification of the correctness of the pin assignment before the operator must confirm the selected assignments.

[0017] A preferred embodiment provides that the control system is configured to initiate a dialog based on an input made via the operating unit, through which the implement class of the connected implement is individually recorded and the assignment of a hydraulic function to a valve as well as the assignment of at least one control element to this valve is carried out. This configuration offers the operator greater flexibility. In this way, for implements for which there are no suitable assignments of at least one hydraulic function directly to a valve, such an assignment can be created by the operator, which can then be stored in the data memory for retrieval.

[0018] Furthermore, the present invention relates to a method for operating an agricultural working machine with a hydraulic control system, by means of which valves of the working machine are controlled, each of which is assigned a pair of machine connections, to which at least one working device with counter connections for controlling a hydraulically actuated adjusting element is connected, as well as with an operating unit which comprises input and output means and which is signal-connected to the control system, wherein by selecting an working device, a hydraulic function of the at least one connected working device, which is carried out by the adjusting element, as well as at least one operating element of the operating unit are directly assigned to a valve, wherein these assignments are retrieved from a data memory of the working machine,wherein the control system makes the assignments depending on the functional characteristics of the connected implement, wherein the control system executes specific sequences stored in the data memory for an attachment model of the connected implement, which define agricultural process steps through time- and / or path-dependent performance curves, wherein the control system manipulates the time- and / or path-dependent performance curves of a stored sequence through inputs received from the control unit, wherein the control system records a sequence for an implement based on inputs transmitted by the control unit and stores it in the data memory for retrieval.

[0019] The present invention is explained in more detail below with reference to an embodiment shown in the drawings.

[0020] They show: Fig. 1: a schematic view of an agricultural work machine designed as a tractor; Fig. 2: a schematic representation of a display on a control unit of the work machine relating to the assignment of hydraulic functions; Fig. 3: a schematic representation of a display on the control unit of the work machine relating to the assignment of control elements; Fig. 4: a schematic representation of a display on the display relating to an automated sequence.

[0021] Fig. 1shows a schematic representation of an agricultural work machine 1 designed as a tractor 2, which in its rear area accommodates an agricultural implement 3, such as a plough, a haymaking machine or a mower, in a manner known per se. In an analogous manner, an agricultural implement 3 can also be attached to the front and / or side of the agricultural work machine 1. As a rule, the agricultural work machine 3 can be picked up by the tractor 2 either via a so-called towing eye 4 or the three-point attachment 5, whereby the agricultural work machine 1 can have a towing eye 4 and a corresponding three-point attachment 5 at the front and / or rear, depending on the level of equipment. Furthermore, the implement 3 can be connected to the tractor by means of a drawbar, a drawbar coupling (piton fix), a ball head coupling, a hitch hook or the like.The work tools 3 to be arranged on the work machine 1 perform a wide variety of work functions, wherein the working elements of the work tools 3 required to perform these work functions are driven hydraulically and / or electrically and / or mechanically. The required drive energy is provided by supply lines 6 - 8 from the respective work machine 1. In a manner known per se, the transmission of mechanical drive energy can be achieved by coupling a drive line 6 on the work tool side to the respective power take-off shaft 9 of the work machine 1. Electrical energy is generally transmitted between the work machine 1 and the work tool 3 via electrical lines 7. Hydraulic drive energy is generally transmitted via several hydraulic lines 8 between machine connections of the work machine 1 and corresponding mating connections of the work tool 3 assigned to the work machine 1.To simplify the coupling process of the hydraulic lines 8 with the working machine 1, the working machine 1 has a, in . Fig. 1 A first coupling part 10, shown only schematically, is connected to the work machine 1 and can be coupled to a second coupling part 11 assigned to the work device 3 and accommodating all hydraulic lines 8 of the work device 3. The first coupling part 10 and the second coupling part 11 form a coupling for connecting the hydraulic lines 8. The number of hydraulic lines 8 to be connected varies depending on the type and range of functions of the work device 3.

[0022] The tractor 1 has a driver's cab 12, on which a display 14 provided with switches 13a or buttons, with slide or rotary controls 13b, and an operating element 13 designed as a joystick 15 are arranged. These operating elements 13, the switches 13a, the slide or rotary controls 13b, the display 14, and the joystick 15 form input and output means 16 of an operating unit 17. The operating unit 17 can comprise further operating elements 13, which are arranged, for example, in consoles of the driver's cab 12. The input and output means 16 are connected to a hydraulic control system. The hydraulic control system comprises a control device 18, a device interface 19 for controlling the adjustment functions of the control device 18, a data memory 20, and a pressure medium source 21.The control device 18 is connected to the pressure medium source 21 via a hydraulic line 24 and preferably consists of a block of several hydraulic directional control valves that are electromagnetically pilot-controlled. The control system further comprises a control device 22, which may also include the data memory 20, as shown in FIG. Fig. 1 The control device 22 is connected to the operating unit 17 by at least one signal line 23.

[0023] The control system controls adjustment elements of the respective connected implement 3, designed as hydraulic cylinders, to perform different functions. This requires a clear assignment of the hydraulic directional control valves of the control device 18 to the adjustment elements of the implement 3, which results from the assignment of the hydraulic lines 8 when coupling the coupling parts 10 and 11 to the hydraulic lines 24.

[0024] In addition, each directional control valve of the control device 18 is assigned at least one of the operating elements 13 of the operating unit 17 in order to enable control of the adjustment element assigned to the respective directional control valve of the control device 18 by an operator of the tractor 2. The type and number of operating elements 13 assigned to the respective directional control valve can depend on the functional features of the implement 3. For a functional feature of the implement 3 that provides only two positions of the adjustment element, it is expedient to assign the operating elements 13a designed as switches or buttons. In contrast, changing the working width or changing the pressure of a traction amplifier of the implement 3 requires at least a step-by-step adjustment, which can be more advantageously implemented using a slide or rotary control 13 or the like.The control of an adjustment element of the working device 3, which results in a pivoting or rotating movement about an axis, can be carried out particularly well by an operating lever with several degrees of freedom, such as the joystick 15.

[0025] The coupling part 10 of the tractor 2 forms a system boundary for the control device 22. The control device 22 receives no information from the implement 3 about which functions of the connected implement 3 are controlled by a respective directional control valve of the control device 18. To overcome this system boundary, the hydraulic control system is designed such that a hydraulic function and at least one control element of the control unit 17 are directly assigned to each directional control valve of the control device 18, wherein these assignments can be stored as retrievable data records in the data memory 20 of the work machine 1. The data records are stored in a database stored in the data memory 20.

[0026] The following assumes an operating situation in which the implement 3 has already been connected to the tractor 2 once. This means that a retrievable data set is available for the implement 3, which contains at least the assignments. The operator connects the implement 3 to the tractor 2. In doing so, the hydraulic machine connections and the hydraulic counter-connections are connected to each other. The operator then enters into a dialogue with the control device 18 of the hydraulic control system via the control unit 17.

[0027] The operator selects the connected implement 3 from an overview of various data sets for different implements within the same implement class, which can be shown on the display 14. Each data set comprises specific information about the respective assignment of a hydraulic function to a directional control valve of the control device 18 as well as the at least one control element 13 and the directional control valve. By selecting the specific data set already stored for the connected implement 3 or the assignments stored therein, the operator can be prompted in a further dialog step to verify these assignments by confirming the correct hydraulic connection of the implement 3 to the work machine 1.

[0028] In addition to the assignments, further information or data for the implement can be stored. This data includes stored sequences specific to implement 3, which define agricultural process steps through time- and / or distance-dependent power curves. Furthermore, the information can also include specific engine transmission settings for the operation of the respective implement 3 in conjunction with the work machine 1, which are transmitted to a suitable control unit.

[0029] The control system is configured to manipulate the stored assignments of a connected implement 3 based on inputs transmitted by the control unit 17. This allows the operator to make adjustments to the assignments as needed. This allows the individual assignments of the hydraulic function to a directional control valve of the control device 18, as well as to the at least one control element 13 and the directional control valve, to be individually adjusted and saved. This adjustment can also be user-specific by storing an individual profile for each operator.

[0030] In addition, the control system is configured to record assignments for a working implement 3 in the database of the data storage device 20, which is connected to the work machine 1 for the first time. To do this, the operator enters into a guided dialog with the control system using the control unit 17. In a first dialog step, the operator is prompted to determine the work implement class, i.e. the type of connected work implement 3. Based on this information, possible hydraulic functions of the work implement 3 are derived from those stored in the database. This is explained using a plow used for soil cultivation as the work implement 3, which is connected to the work machine 1. By selecting a higher-level generic term, a distinction is made between possible areas of application of the work implement 3. Examples of generic terms that can be considered are arable farming, fodder production, and transport.In the case of the plow as an implement, this falls under the category of arable farming. Below these categories, various work tasks are branched out, which are specific to each category. Within the category of arable farming, work tasks can be defined as soil cultivation, sowing and planting, plant protection and fertilization, slurry and manure spreading, and harvesting. In the case of the plow, the operator selects soil cultivation as the work task in the next dialog step.

[0031] Below the work task, implement classes are defined which list the type of implements that can be used to perform the respective work task. The soil tillage implement class includes, for example, plough, cultivator, disc harrow, seedbed combination, deep loosener or PTO-driven soil tillage implements as implements. In a further dialog step, the plough is selected as the implement class. The selection of the implement class determines the available hydraulic functions of the connected implement 3, which are stored for this implement class. These are at least the hydraulic functions that can generally be performed by the selected implement 3. In a further dialog step, the operator assigns the respective hydraulic function to one of the directional control valves of the control device 18.Subsequently, in a subsequent dialog step, the operator assigns the control element 13 to be actuated to control the respective directional control valve of the control device 18 to a respective hydraulic function. The assignments of hydraulic function to a directional control valve and of the control element to the hydraulic function are stored in the database located in the data memory 20 and can be retrieved for this implement 3. If the implement 3 designed as a plow is reconnected to the work machine 1 at a later time, the operator selects the corresponding implement 3 again. The assignments made at an earlier time are shown to the operator on the display 14 of the control unit. For commissioning, the operator only has to confirm the correctness of the assignments or adjust them if necessary, as already described above.

[0032] The above exemplary lists of generic terms, work tasks and work equipment classes are not to be understood as exhaustive.

[0033] The representation in Fig. 2 shows a schematic representation of a display on the display 14 of the control unit 17 of the work machine 1, which concerns the assignment of hydraulic functions. Fig. 2illustrates the visualization of an assignment made by or selected by the operator between one of the directional control valves of the control device 18 and hydraulic functions to be performed by a controllable adjustment element of the implement 3, as shown on the display 14. Reference numerals 30 and 34 denote symbols shown on the display which characterize the respective hydraulic function. Symbol 30 describes the hydraulic function of actuating a pivoting rear flap of a tipping trailer by a hydraulically actuated adjustment element. Symbol 34 describes the hydraulic function of changing the tipping angle of the loading area by a hydraulically actuated adjustment element.

[0034] Symbols 31 and 35 visualize the directional control valve of the hydraulic control device 18 assigned to the respective hydraulic function. Symbol 31 designates the directional control valve whose control leads to a change in the tipping angle of the tipping trailer. Symbol 35 designates the directional control valve whose control leads to an actuation of the corresponding adjustment element. Reference numerals 32 and 36 designate symbols of the control elements 13 assigned to the respective directional control valves of the hydraulic control device 18. For each of the directional control valves visualized by symbols 31 and 35, an associated flow indicator 33 or 37 is shown on the display 14, which represents the flow rate of the hydraulic oil flows. For this purpose, graphic display elements 33a, 33b and 37a, 37b are shown, which visualize the respective flow rate for the two flow directions of the respective hydraulic valve of the corresponding adjustment element.

[0035] The representation in Fig. 3 shows a schematic representation of the display on the display 14 of the control unit 17 of the work machine 1 concerning the assignment of control elements 13. Fig. 3illustrates the visualization of the assignment between a hydraulic sub-function and an associated control element 13. Reference numerals 39a and 39b denote the symbols that visualize the hydraulic sub-functions for opening and closing the pivoting rear flap of the tipping trailer, respectively. These sub-functions are effected by the corresponding control of the associated directional control valve, which controls the hydraulic flow to the adjustment element on the tipping trailer. Reference numerals 39c and 39d denote the symbols that visualize the hydraulic sub-functions for adjusting the tipping angle for raising or lowering the loading area of ​​the tipping trailer. Each of the hydraulic sub-functions visualized by symbols 39a to 39d is assigned an operating element 13, which in the illustrated embodiment are designed as function keys 38a to 38d.This visualization of the control-related relationships helps to avoid incorrect operation.

[0036] Fig. 4shows a partial view of an automatically executable sequence shown on the display 14 of the control unit 17, which is assigned to the working device 3. The sequence contains the information about the assignment of hydraulic functions to a directional control valve of the control device 18 as well as the control element 13 to the respective hydraulic function. As already described above, the working device 3 is designed, by way of example, as a tipping trailer. In step 1, the hydraulic sub-function of pivoting the rear flap, visualized by the symbol 39a, is represented by an automated actuation of the function key 38a. The duration of this actuation is shown by a time indication on the display 14. In step 2, the hydraulic sub-function of raising the loading area, represented by the symbol 39b, is reproduced by the automatic actuation of the function key 38b.In step 3, the hydraulic subfunction of lowering the loading area of ​​the tipping trailer, visualized by symbol 39c, is represented by an automated actuation of function key 38c. In the following step, the hydraulic subfunction of closing the rear flap, represented by symbol 39d, is represented by the automated actuation of the function key 38d assigned to this function. List of reference symbols 1 Work machine 33a Display element 2 tractor 33b Display element 3 Work equipment 34 Symbol Function 4 tow bar 35 Symbol directional control valve 5 Three-point attachment 36 Symbol control element 6 Powertrain 37 Flow display 7 Electrical line 37a Display element 8 hydraulic line 37b Display element 9 PTO 38a Function key 10 First coupling part 38b Function key 11 Second coupling part 38c Function key 12 Driver's cab 38d Function key 13 Control element 39a Symbol subfunction 13a Switch 39b Symbol subfunction 13b rotary control 39c Symbol subfunction 14 Display 39d Symbol subfunction 15 joystick 16 Input and output devices 17 Control unit 18 Control device 19 Device interface 20 Data storage 21 Pressure medium source 22 Control device 23 Signal line 24 hydraulic line 30 symbol 31 Symbol directional control valve 32 Symbol control element 33 Flow display

Claims

1. An agricultural working machine (1, 2) with a hydraulic control system which controls valves of the working machine (1, 2) which are associated with respective machine connections (10), to which at least one implement (3) with mating connections (11) can be attached in order to control a hydraulically actuated adjusting element, as well as with an operating unit (17) which comprises input means and output means (16) and which is connected to the hydraulic control system for the purposes of signalling, wherein the hydraulic control system is constructed in a manner such that a hydraulic function of the at least one attached implement (3) which can be executed by the adjusting element, as well as at least one operating element (13) of the operating unit (17) is directly allocated to a respective valve, wherein these allocations are stored in a data memory (20) of the working machine (1, 2) in a retrievable manner, wherein the control system is configured to implement the allocations as a function of functional features of the attached implement (3), wherein the control system is configured to execute sequences which are specific to an implement model of the attached implement (3) stored in the data memory (20) and which define agricultural process steps by time-dependent and / or path-dependent performance profiles, wherein the control system is configured to manipulate the time-dependent and / or path-dependent performance profiles of a stored sequence by inputs which are received from the operating unit (17), characterized in that the control system is configured to delineate a sequence for an implement (3) with the aid of inputs transmitted via the operating unit (17) and to store it in the data memory (20) in a retrievable manner.

2. The agricultural working machine (1, 2) according to claim 1, characterized in that the control system is configured to manipulate the stored allocations for an attached implement (3) by inputs which are transmitted from the operating unit (17) to a control device (22).

3. The agricultural working machine (1, 2) according to one of the preceding claims, characterized in that the operating unit (17) is configured to visualise the respective allocation of the hydraulic function implemented by the control system with a symbol (30, 34).

4. The agricultural working machine according to one of the preceding claims, characterized in that the operating unit (17) is configured to visualise a sub-function allocated to the respective operating element (13, 15) with a symbol (39a, 39b, 39c, 39d).

5. The agricultural working machine (1, 2) according to one of the preceding claims, characterized in that the control system is configured to carry out an allocation of a hydraulic function to a valve and of at least one operating element (13, 15) to a valve as a function of inputs received via the operating unit (17).

6. The agricultural working machine (1, 2) according to one of the preceding claims, characterized in that in the case of selection of an attached implement (3) via an input by means of the operating unit (17), the control system is configured to open a dialogue which outputs the stored allocations for the attached implement (3) via the output means (16) of the operating unit (17) for the purposes of verification.

7. The agricultural working machine (1, 2) according to one of the preceding claims, characterized in that the control system is configured to open a dialogue via an input transacted by means of the operating unit (17), by means of which the implement classification of the attached implement (3) is individually detected and the allocation of a hydraulic function to a valve as well as the allocation of at least one operating element (13, 13a, 13b, 15) to this valve is carried out.

8. A method for operating an agricultural working machine (1, 2) with a hydraulic control system via which valves of the working machine (1, 2) are controlled, which are associated with respective machine connections (10), to which at least one implement (3) with mating connections (11) is connected in order to control a hydraulically actuated adjusting element, as well as with an operating unit (17) which comprises input means and output means (16) and which is connected to the control system for the purposes of signalling, wherein, by selecting an implement (3), a hydraulic function of the at least one attached implement (3) which is executed by the adjusting element, as well as at least one operating element (13, 13a, 13b, 15) of the operating unit (17), is directly allocated to a respective valve, wherein these allocations are retrieved from a data memory (20) of the working machine (1, 2), wherein the control system implements the allocations as a function of functional features of the attached implement (3), wherein the control system executes sequences which are specific for an implement model of the attached implement (3) stored in the data memory (20) and which define agricultural process steps by time-dependent and / or path-dependent performance profiles, wherein the control system manipulates the time-dependent and / or path-dependent performance profiles of a stored sequence by inputs which are received from the operating unit (17), characterized in that the control system delineates a sequence for an implement (3) with the aid of inputs transmitted via the operating unit (17) and stores it in the data memory (20) in a retrievable manner.