WO2020020944A1

WO2020020944A1 - Method for adjusting a work tool

Info

Publication number: WO2020020944A1
Application number: PCT/EP2019/069911
Authority: WO
Inventors: Marek Lajda; Christoph HOHBEIN
Original assignee: Prüfrex engineering e motion gmbh & co. kg
Priority date: 2018-07-27
Filing date: 2019-07-24
Publication date: 2020-01-30
Also published as: DE102018212548A1

Abstract

The invention relates to a method (34) for adjusting a work tool, in particular a hand-held work tool (2). A data connection (38) is established between the work tool (2) and an external device (20), and an operating parameter (46) of the work tool (2) is transmitted to the external device (20). An adjustment value (52) for the work tool (2) is determined by the external device (20). The invention also relates to a use of an external device (20) for adjusting a work tool, in particular a hand-held work tool (2).

Description

description

Procedure for setting an implement

The invention relates to a method for adjusting an implement. The implement is, for example, hand-held and in particular a chainsaw or a power cutter. The invention further relates to the use of an external device.

Tools such as chainsaws or lawn mowers are usually driven by a motor. For example, an electric motor is selected as the motor. This has a comparatively low noise emission, and is comparatively little maintenance and maintenance intensive. Efficiency is also comparatively high. However, if the implement is to be self-sufficient, it is necessary to carry batteries or the like that have self-discharge. It is therefore necessary to monitor the batteries in order to be able to operate the implement over a comparatively long period of time.

An alternative to this is to use an internal combustion engine. Refilling a fuel can be accomplished comparatively quickly in this case. It is also possible to store work tools driven in this way over a comparatively long period of time. To reduce manufacturing costs, the internal combustion engines usually have a carburetor. At comparatively low temperatures, which occur in particular in mountainous areas, however, the fuel condenses out and is deposited on the walls of a combustion chamber of the internal combustion engine, which must be taken into account by adjusting the carburetor. However, such a setting is not reliable at comparatively high ambient temperatures. It is therefore necessary to adapt the carburetor to the corresponding environmental conditions. If the tool is also to be used by inexperienced users, it is therefore necessary to run the carburetor at least semi-automatically, which leads to increased manufacturing costs. In order to achieve a comparatively high level of efficiency and also to increase operational reliability, it is also necessary to change the ignition times, that is to say the times at which the fuel-air mixture is ignited, which is located in the combustion chamber of the internal combustion engine. For example, an increase in engine speed is to be expected, particularly if the ignition timing is shifted “early”. The ignition times are usually stored in a map. As a result, it is necessary for the implement to have a memory with the characteristic diagram and for the control electronics to have sufficient hardware resources in order to dynamically read out the corresponding values from the characteristic diagram. As a result, manufacturing costs and also a susceptibility to errors and a weight of the implement are increased.

The invention is based on the object of specifying a particularly suitable method for setting an implement and a particularly suitable use of an external device, expediently reducing production costs and / or error susceptibility, and in particular increasing comfort for a user.

With regard to the method, this object is achieved according to the invention by the features of claim 1 and with respect to the use by the features of claim 10. Advantageous further developments and refinements are the subject of the respective subclaims.

The procedure is used to set an implement. The implement expediently has a motor, by means of which a tool is driven, such as a rotating knife. The implement is, for example, a sweeper, a lawn mower or a scarifier. The implement is preferably designed to be portable and, for example, a brushcutter, a cutting wheel fer / angle grinder, a chainsaw, a drill or a hedge trimmer, the tool being adapted accordingly.

The motor is an electric motor, for example. In this case, the working device expediently comprises a battery which is regulated by means of electronics. The electronics are used in particular to control and / or regulate a charging current and / or a discharge, expediently on the electric motor. In this case, the electronics are expediently set by means of the method. Alternatively or in combination with this, the electronic motor is regulated / controlled. Depending on the setting, a speed and / or an applied torque is set, for example.

Alternatively, the engine is an internal combustion engine. The internal combustion engine suitably comprises a carburetor, by means of which an air-fuel treatment takes place. In this way, the manufacturing costs are reduced on the one hand and the robustness is increased on the other. For example, the internal combustion engine is operated according to the 2-stroke or 4-stroke method. For example, the internal combustion engine comprises several cylinders, for example 2 cylinders. However, the internal combustion engine is particularly preferably a single-cylinder (internal combustion) engine. For example, the internal combustion engine is on

Single-cylinder internal combustion engine, which suitably works in the two-stroke process. In this way it is possible to manufacture the internal combustion engine comparatively inexpensively. The internal combustion engine expediently comprises an ignition system. The method preferably serves to set the ignition system. In other words, the method is a method for setting an ignition system of an internal combustion engine.

The method expediently serves for repeated setting of the implement, in particular after its manufacture and / or delivery. In particular, the process is controlled by a user, in particular “in the field”, that is to say independently of a workshop. In other words, the method is workshop-independent and / or production-independent. The method is also advantageously started by a user. With others The method is at least partially carried out by the user or can be carried out by the user.

The method provides that a data connection is first established between the working device and an external device. The external device in particular has a computing device, for example a processor and / or a microchip. The external device is, for example, a computer, a tablet, a smartphone or a smart watch. The external device and the working device expediently form a system.

In a further step, an operating parameter is transmitted from the working device to the external device. The operating parameter is, for example, a current parameter of the implement, which signals its operating state, for example. For example, the operating parameter corresponds to a standby mode of the implement and is expediently only transmitted when the implement is in the standby mode. Alternatively, the operating parameter signals a current speed and / or setting of a certain part of the implement. For example, the operating parameter was already implemented a period of time ago and is stored in a memory of the implement.

In a further step, a setting value for the working device is determined by means of the external device, the setting value being determined in particular as a function of the operating parameter. The setting value expediently serves to influence / set a component of the working device, for example the internal combustion engine, such as the ignition system and / or the carburetor, or the electronics. When the setting is used, the behavior of the implement is changed. In particular, the setting value is determined as a function of the transmitted operating parameter. In particular, the set value as a function of the operating parameter is stored in the external device and / or the set value is calculated as a function of the operating parameter. In particular, the external device has appropriate software and / or hardware for this. Since the setting value is determined using the implement, only minimal hardware resources are required for the implement, which is why manufacturing costs are reduced. In particular, a processor and / or a memory of the working device are only adapted to comparatively low requirements, whereas the comparatively complex determination of the setting value is carried out using the external device. This also enables a comparatively complicated calculation of the setting value, so that a comparatively high degree of efficiency can be achieved.

The weight of the implement is also reduced, which increases comfort. Furthermore, it is possible to design the external device, and in particular a user interface part, to be comparatively comfortable, since there are other restrictions with regard to size and weight than with the working device. Comfort for the user is thus further increased.

In addition, changing the determination of the setting value, for example a calculation rule for determining the setting value, is simplified, in particular by means of an update of the external device, whereas the working device does not have to be moved. If the external device is a smartphone or the like, it is thus possible to transmit the update by means of a mobile radio network and / or to bring the smartphone to a workshop, whereas the working device does not have to be moved. The susceptibility to errors is also reduced, in particular if the implement is exposed to vibrations, as is the case, for example, with a chainsaw. Damage to the unit for determining the setting value is thus excluded, in particular in the event of a vibration or the like.

The setting value is determined by means of the method, the working device having a different operating behavior as a function of the setting value, and the external device advantageously being operated by a user (user / user). By means of the method, it is also possible to set a plurality of work tools by means of a single external device, for example always the same setting value or different setting values can be used for different implements. With a "fleet" of work tools, adjustment and maintenance are simplified, which increases comfort. For example, the setting value is the mixing ratio of an air-fuel mixture, by means of which the internal combustion engine is operated.

For example, the operating parameter corresponds to a service (status) of the implement, a number of operating hours that have already taken place, that is to say a previous operating time, or comprises at least one of these. It is therefore possible to take into account the service status / operating time and any associated restrictions, such as wear, when determining the setting value. Since the operating parameter is transmitted to the external device, it can also be evaluated using the external device. "Fleet management" is simplified in particular if a setting value is determined for several tools using the external device. For example, the operating parameter or an evaluation based thereon is forwarded to an external server so that an extended evaluation can take place. The current position of the implement / external device is expediently also transmitted to the external server, so that an evaluation is improved.

For example, the operating parameter includes a current software version of the implement and / or information regarding the hardware installed in the implement. This means that knowledge of the structure and performance of the implement is available in the external device, which is why the setting value can be determined accordingly. The external device is preferably adapted in such a way that it can determine the setting value in accordance with a large number of software versions / installed hardware. In other words, the external device, in particular software present thereon, is suitable for different determinations of the setting value, in particular provided and set up.

In particular, the external device has a display. For example, the setting value is output on the display. For example, the setting value just a single value, especially a number or number. However, the setting value is particularly preferably an instruction, suitably a video, or is output with it. In particular, the setting value is designed / output interactively. The setting value / instructions expediently instruct the user to set the implement in accordance with the setting value. The setting value is thus output, for example, as step-by-step instructions. Appropriately, each time the step has been carried out, the user confirms this on the external device and the next step is then displayed.

In particular, the setting value is used to give instructions on how to set a carburetor of the internal combustion engine, if it is present. In particular, the operating parameter is a speed, for example an idling speed or a maximum speed. The operating parameter is preferably transmitted a number of times and the setting value or different setting values are determined a number of times. In particular, the idle speed is first set using the first setting value, and the operating parameter is, for example, the idle speed. A further operating parameter is then transmitted, for example a maximum speed, and the setting value is a setting of a further screw of the carburetor. Due to the output by means of the display, it is also possible for a comparatively unneeded user to set the implement correctly, so that it is convenient. Alternatively or particularly preferably in combination, the setting value is transmitted to the implement by means of the data connection. In other words, the set value is stored in the implement and the implement is expediently set to the set value. In particular, the set value is written into a memory of the implement, and the implement is already set to the set value in this way. For example, an ignition timing is changed in this way. In particular, the setting value is a map in which ignition times are stored as a function of a speed and / or other parameters. For example, the map shows the Motor operated, for example the internal combustion engine or any electronics by means of which the battery is controlled / regulated. For example, the setting value is used to set an at least semi-automatic carburetor. Due to the transmission to the working device, comfort for a user is further increased.

In a further embodiment, the operating parameter is, for example, an update or comprises an update. As an alternative to this, the operating parameter is not suitable, in particular is not provided and is not set up to include an update. In other words, the operating parameter is expediently not updateable and suitably only corresponds to a change in a parameter that is already stored in the implement. If an update is available, this is expediently transmitted in addition to the operating parameter from the external device to the working device. In particular, the update is transmitted if a software version of the implement is out of date or if the update is a newer version than the software version already on the implement. The operating parameter preferably includes the version number of the software stored on the implement.

In particular, the setting value is determined as a function of an environmental condition. For example, a temperature is used as the environmental condition. Alternatively or in combination, the environmental condition is the height within which the implement is located. In particular, ambient air is thinner at a comparatively high altitude, so that the ignition ratio of an air-fuel mixture is changed. For example, the environmental condition is determined by means of a sensor of the working device, the measurement data, in particular the environmental condition, being transmitted to the external device by means of the data connection. Alternatively, the environmental condition is determined by the external device itself. For example, the environmental condition is measured directly. Alternatively, this is determined indirectly. In particular, a GPS signal is used here, on the basis of which the height is expediently determined. Alternatively or particularly preferably in combination with this, the setting value is determined as a function of a user input, also referred to as a user input. The user input is expediently carried out by means of the external device, which comprises a suitable input device for this. In particular, the external device comprises a touchpad, a touchscreen, or a touch-sensitive screen. A desired profile is preferably entered as user input. The profile is used in particular to set a maximum and / or nominal output, so that a certain fuel consumption or the like is also selected implicitly. Alternatively or in combination, the user input relates to a choice of a fuel, for example a specific one

Ethanol content. It is therefore not necessary to equip the implement, in particular the internal combustion engine and / or the ignition system, with a corresponding sensor. A lever or the like for selecting the type of fuel on the implement is also not required, in particular if the setting value is transmitted to the implement.

In a further alternative, the user input relates, for example, to the type of wood that is being processed, in particular if the implement is a chainsaw. A maximum speed and / or a torque is expediently set here, so that a cut is improved, with a cut being reduced. It is thus also possible for an unversed user to process the wood according to the respective properties, whereby the quality of the processed product is increased.

In a further alternative, the user input corresponds, for example, to a desired area of use or a desired function of the implement. If, for example, the working device is an angle grinder / angle grinder, user input defines, for example, whether this should be used for grinding, for cutting, for brushing, for polishing, for sawing, for planing or for grinding. The setting value is used, for example, to use the external device to indicate which attachment / tool, for example which cutting disc, is to be used, and in particular how the attachment also referred to as a tool to be assembled. Furthermore, the external device is preferably used to indicate which attachment / extension must be purchased for this, provided that it is not already available. For example, a link or the like to an online shop is issued. The display of the external device preferably also shows how the working device is to be used to carry out the function, that is to say in particular with what pressure the working device is to be operated. As an alternative or particularly preferred combination for outputting the setting value by means of the external device, the setting value or at least part of the setting value is transmitted to the external device. In this case, for example, a speed / torque to be applied in the desired function by means of the implement is set, in particular a maximum speed / maximum torque in each case.

If the implement is a drill, for example, the set value is used to indicate whether it should be used as a screwdriver, drill or stir bar, especially for cement or paint. The speed / torque / operated time / applied force (pressure) differ depending on the area of application, which are expediently transmitted to the implement by means of the setting value. In summary, in the previous embodiments the operating parameter is in particular a parameter set by means of which the speed / torque and / or the time period during which the engine is operating and / or the force applied and / or an applied force is provided by means of the working device / Pressure is set. Here, for example, a fixed speed / torque / duration / pressure is specified or a maximum speed / maximum torque / maximum duration / maximum pressure. For example, a gearbox or the like is additionally set here if the working device is equipped for this. For example, an impact function of the implement is additionally activated or deactivated by means of the setting value.

If the implement is, for example, a polishing machine, the setting value corresponds in particular to the polishing disc and / or polishing paste currently to be used. Here, in particular, by means of the display of the external device which polishing paste is to be used and which pressure is to be applied by means of the polishing machine. For example, a link or the like is output using the display, which leads to an online shop from which the required materials can be ordered. Preferably, the duration that the polishing machine is to be used with this polishing paste is also output. Preferably, after the period of time has elapsed, the implement or, in particular, the possible motor is stopped. Comfort for the user is thus further increased. The time period thus corresponds in particular to the setting value or to a part of the setting value which is transmitted to the implement.

After the time period has elapsed, the polishing paste to be used in particular, which in particular has a finer grain, is indicated by means of the display. Thus, even inexperienced users can see how the implement should be used to achieve a suitable work result, especially if several work steps are to be carried out. The speed / torque / time duration / pressure to be used is preferably transmitted in addition to the implement. In a further development, for example, after the actual function of the working device begins, that is, preferably after the start of the operation of the motor, for example, after the start of operation as a drill, polishing machine, ...

, which monitors the force applied, that is to say in particular the contact pressure by means of which the implement is actuated by a user. A suitable sensor, that is to say in particular a pressure sensor, of the working device is expediently used for this. The contact pressure / force is transmitted to the external device in particular as a renewed operating parameter. Depending on this, a new setting value is determined, for example, a speed that deviates from the previous speed due to an excessive pressure applied by the user. This setting value is transmitted to the implement, so that it is operated with the changed speed / torque, which is, however, set to the current pressure applied. In this case, the method is preferably continuously repeated. repeated, in particular the exchange of the operating parameter and the setting value, preferably as long as the motor of the implement is being operated. The working device is thus preferably regulated to the applied pressure, the external device being used for the regulation.

The operating parameters are preferably output by means of the external device after it has preferably been transmitted to the external device. Here, the display of the external device is used in particular, if it is available. The display is preferably a component of the touch-sensitive display (touchscreen). Based on the output, it is possible for a user to check whether the operating parameter on the basis of which the setting value is determined is actually realized. This makes it possible to check whether the setting value is determined on the basis of correct operating parameters. It is also possible for a user to check wear or the like in this way.

For example, the operating parameter is compared with a target value.

The target value is expediently stored in the external device, so that a memory requirement in the working device is reduced. In particular, the setting value is determined depending on the comparison. Alternatively or in combination, wear of the implement is determined on the basis of the comparison. It is thus possible to determine an impending failure of the implement or an impending necessary maintenance. In addition, the comparison enables the setting of the working device to be checked, in particular as soon as the setting value has been determined and / or the working device has been set to the setting value, for example automatically or on the part of the user. In other words, the correct setting can be checked for the setting value. For this purpose, the operating parameter is expediently transmitted again after the implement has been set to the set value. Since the comparison is carried out by means of the external device, it is not necessary for the working device to have such a memory and such a computing unit, which is why the working device can be manufactured more cost-effectively and is lighter and more robust. If the external device is a smartphone, for example, is a such a memory and / or arithmetic unit already exist, which is why no additional manufacturing costs are required. A comparatively simple change of the target value is also possible, in particular by means of an update, for example by means of a mobile radio network or WLAN.

For example, the data connection is created using a cable. However, the data connection is particularly preferably wireless. Contamination of a possible socket for establishing the cable connection is thus prevented, and the data connection can also be established with a soiled implement. For example, a WLAN standard or an NFC standard is used here. The Bluetooth standard is particularly preferably used. This enables an exchange of a comparatively large amount of data with reduced energy consumption. This means that it is also possible to create the data connection with the external device without a workshop, for example in the area of application of the working device. All that is required for this is that the implement has a communication module that meets the Bluetooth standard. Due to the use of this standard, it is possible to use the implement with a number of different external devices, regardless of their respective manufacturer.

For example, the implement is blocked if an error occurs during the data connection, for example when the operating parameter is transmitted. The implement is preferably blocked if an error occurs when determining the setting value. The implement is suitably blocked if an error occurs when the setting value is transferred to the implement. If the error occurs, safe operation of the implement is not possible. Because of the blocking, operation of the implement is therefore not possible unless it is ensured that the implement is functioning properly, for example the communication module for communicating with the external device, or that the setting value has been correctly transmitted. In particular, the device is already locked during manufacture, and the device can only be unlocked if an error-free data connection is established with the external device. In particular, the production of Data connection adapted a certain area of a memory, in particular a so-called "flag" is set. The implement can only be operated if this has been done. In this way, security is increased. In particular, the external device is authenticated by means of the working device. Thus, it is only possible to determine the setting value using the correct external device. For this purpose, for example, the external device is registered in a first work step, for example during manufacture or handover from a manufacturer. Authentication takes place only when this registered external device is used, and the operating parameter is transmitted to the external device. In particular, it is only possible to transmit the set value to the working device via the data connection, provided the external device is authenticated. The authentication is expediently carried out by means of the data connection. If the external device is not authenticated, the work device is also blocked, for example, and / or this is treated as an error.

In one development, for example, the working device is blocked if authentication of the user by means of the external device is unsuccessful. In other words, it is first necessary for the user to authenticate himself with the external device, for example by entering a code or by capturing biometric data, for example a fingerprint. In a further alternative, authentication is carried out using a GPS signal. Authentication is only possible or has already been carried out if the external device and / or the working device are in a specific, predefined area. Only when the user has appropriately authenticated the external device is it possible, in particular, to use the working device as intended and / or to establish the data connection to the working device. Alternatively or in combination with this, the operating parameters are only then transmitted from the working device to the external device. If the authentication has not yet taken place, it is preferably not possible to transmit the setting value to the implement. Theft protection is therefore implemented due to the authentication, which is why Work equipment cannot be used if this is not done by the user himself.

An external device is expediently used for setting a working device, a data connection being established between the working device and the external device. Due to the use of the external device, a hardware requirement for the working device is reduced. The implement is conveniently hand-held. Due to the reduced hardware requirements, the weight of the hand-held implement is reduced, which increases comfort.

The implement is, for example, hand-held or not hand-held. The implement preferably comprises a (drive) motor, which is, for example, an internal combustion engine (one and two cylinders) or an electric motor.

The working device suitably comprises a control unit (central unit), preferably with an ECU and a non-volatile data memory and / or with an ignition module / ignition system and a non-volatile data memory. For example, the data connection is based on electromagnetic waves (radio technology) and is therefore a radio connection. Alternatively, the data connection is wired. For example, the data connection is bidirectional.

The control unit and or other components of the working device are supplied with energy, for example, by means of a battery or a generator, which is driven in particular by means of the internal combustion engine, if any. For example, the data connection is created automatically or depending on an action by a user. The external device is, for example, a computer, in particular a PC or notebook. Alternatively, the external device is a so-called "mobile device", such as a smartphone, a tablet or a

SmartWatch. To determine the setting value, in particular (measurement) data from one or more sensors are used, which are installed, for example, in the working device or the external device. For example, the sensor is a speed sensor, a throttle valve potentiometer or a temperature sensor. The further developments and advantages described in connection with the method can also be applied analogously to the use and vice versa. An exemplary embodiment of the invention is explained in more detail below with reference to a drawing. In it show:

1 schematically simplified a portable implement,

2 shows a method for setting the portable implement,

Fig. 3 shows an alternative embodiment of the portable implement.

Corresponding parts are provided with the same reference symbols in all the figures. In Figure 1, a portable implement 2 is shown schematically simplified in the form of a chainsaw. The chain saw 2 has a tool 4 with a saw chain 6 which is coupled to a centrifugal clutch 8. The centrifugal clutch 8 is coupled on the input side to a single-cylinder internal combustion engine 10 which works according to the two-stroke method (two-stroke method). The internal combustion engine 10 has a carburetor 12 and an ignition system 14, by means of which an ignition of a spark plug (not shown in more detail) is controlled. The internal combustion engine 10 further comprises a control unit 16, by means of which the carburetor 12 and the ignition system 14 are adjusted. For this purpose, the ignition system 14 and the carburetor 12 are coupled to the control unit 16 in terms of signal technology. The internal combustion engine 10 further comprises a communication module 18, which is signal-technically coupled to the control unit 16. The communication module 18 works according to the Bluetooth standard.

In addition, FIG. 1 shows an external device 20 in the form of a smartphone, which comprises a touch screen 22. The touchscreen 22 is a combined display and an input device. In addition, the external device 20 has a GPS sensor 24 and a memory 26 for a target value 28 or a plurality of such target values 28. The external device 20 also includes electronics 30, the one Computing unit, not shown, in the form of a microprocessor and further memory units and a communication unit. The communication unit also works according to the Bluetooth standard. FIG. 2 shows a method 32 for operating the portable working device 2 and the external device 20. In a first step 34, the portable implement 2 is started. For this purpose, for example, a switch is actuated manually and the control unit 16 is energized by means of a battery (not shown in more detail). The external device 20 is also put into an operating mode if this is not already the case. In addition, a method 34 for setting the implement 2 is started. In a second step 36, a data connection 38 is created between the communication module 18 of the working device 2 and the electronics 30 of the external device 20. The Bluetooth standard is used for the data connection 38.

If an error occurs in the data connection 38, a third work step 40 is carried out and the implement 2 is blocked. In this case, the ignition system 14 is set by means of the control unit 16 in such a way that the creation of an ignition point and thus activation of the spark plug is prevented. If the carburetor 12 is at least semi-automatic, it is also set such that no air-fuel mixture is generated. As a result, the centrifugal clutch 8 and thus also the tool 4 are prevented from being driven.

If the error does not occur, a fourth work step 42 is carried out and the external device 20 is authenticated. It is checked whether a key of the external device 20 corresponds to a key stored in the control unit 16. The key has been stored, for example, during manufacture and / or in a specialist workshop in the working device 2. If the authentication fails, the third work step 40 is also carried out and the implement 2 is blocked.

If the authentication is successful, a fifth work step 44 is carried out and an operating parameter 46 from the work device 2 to the external device. advises 20 transmitted via the data link 38. The operating parameters 46 is, for example, a speed by means of which the single-cylinder internal combustion engine 10 is currently rotating or an idling speed by means of which the

Single-cylinder internal combustion engine 10 rotated when method 32 was last executed. Alternatively, the operating parameter 46 is a temperature of the

Single-cylinder internal combustion engine 10 or the operating state of the working device 2.

In a sixth step 48, the operating parameters 46 are output by means of the touchscreen 22 of the external device 20 and are thus identified to a user. In a subsequent seventh work step 50, a setting value 52 is determined by means of the external device 20, namely the electronics 30. For this purpose, a user input is used, for example, which the user made by means of the touch screen 22, in particular in response to the display of the operating parameter 46. In particular, what is the type of fuel that is filled into a fuel tank (not shown in detail) of the portable implement 2 is queried is. They also ask for a desired work profile, for example whether maximum performance or maximum efficiency is to be achieved. Furthermore, the operating parameter 46 is compared with the target value 28 stored in the memory 26. In addition, the GPS sensor 24 is used to determine a current height of the external device 20 and thus also of the working device 2, which is located in the vicinity of the external device 20. In other words, the environmental conditions for determining the setting value 52 are taken into account. In summary, both the user input and the comparison of the operating parameter 46 with the target value 28 and the ambient conditions are used to determine the setting value 52. This takes place, for example, at least in part by means of a formula, or the setting value 52 is stored in the external device 20 as a function of the parameters mentioned. The setting value 52 includes, for example, a map for setting the ignition system 14 and a setting of the carburetor 12. In a subsequent eighth working step 54, the setting value 52 or at least a part thereof is transmitted to the working device 2 by means of the data connection 38. In particular, the map for generating the ignition times is transmitted to the ignition system 14 and any map that is already present is overwritten. Thus, the ignition times are created in accordance with the filled fuel and the height within which the implement 2 is operated. In addition, a ninth work step 56 is carried out essentially at the same time, and the setting value 52, which corresponds to the setting of the carburetor 12, is output by means of the touchscreen 22, that is to say the display of the external device 20. Here, an interactive video is played, by means of which the

User is instructed to adjust the carburetor 12. In a tenth step 58, the carburetor 12 is manually set by the user in accordance with the interactive video. If this has been carried out, an eleventh work step 60 is carried out, and the implement 2, in particular the

Single cylinder internal combustion engine 10, operated. For this purpose, for example, a maximum speed is increased so that the centrifugal clutch 8 is engaged and the tool 4 can be operated.

In summary, operating characteristics and parameters (setting value 52) of the implement 2 are set for the respective application via an end user device (external device 20). The user connects to the working device 2 via the external device 20, which is, for example, a smartphone or a smartwatch. The user can select and set profiles (setting value 52) stored in the external device 20 and set the working device 2 accordingly. For example, consumption-optimized or performance-optimized machine use can be selected. Furthermore, it is possible to use the external device 20 to select the type of fuel used, which in turn has an influence on, for example, an alpha-n characteristic. A high percentage of ethanol in the fuel causes a different air-fuel ratio and a different ignition and start curve. Without any change, the type of wood to be processed and the desired speed limitation are queried. Based on the selection of the user, the setting value 52 (for example ignition curve, alpha-n map, speed limitation) is determined, which is stored, for example, in the external device 20, in particular in hardware or software. The setting value 52 is written into any data memory of the working device 2 by means of the data connection 38, in particular via the communication module 18. The setting value 52 expediently serves as the basis for the machine behavior, and the setting value 52 is preferably queried permanently from this memory during operation. The external device 20 preferably has the GPS sensor 24, ie the possibility of GPS location, and / or an Internet access, for example by means of a mobile radio standard, such as 3G or UMTS. In this case, the setting value 52 is preferably determined as a function of the altitude and or temperature, that is to say from ambient conditions, the altitude and / or temperature being determined by means of the GPS sensor 24 or a query via the Internet. The external device 20 (smartphone, smartwatch) also expediently offers the possibility of storing application and operating profiles, for example maps for conventional or bio-fuel. These can preferably be selected by means of the user input, expediently by means of the graphical selection of the user (quasi as a display for selecting the fuel type, height, etc.). Because of the method 34 for setting the implement 2, inexpensive control units 16, for example simple microcontrollers, can continue to be used. In addition, no further sensors or input or adjustment options are required within the implement 2, which reduces manufacturing costs.

In other words, in the method 34 for setting the implement 2, in particular the data connection 38 is first established between the external device 20 (terminal) and the control unit 16 of the implement 2. In particular, the operating parameters 46 stored in a data memory (not shown in more detail) are subsequently queried. The operating parameter 46 is in particular an operating characteristic value, for example a map or an ignition timing. Following this is the read operating parameters 46 shown on the display 22 of the external device 20. It is also possible for the user to select the selected fuel type, for example E 10, E 25, E 85. In addition, the user is able to select a specific profile, in particular a user profile, for example a so-called ECO mode or a power mode. It is also possible to personalize the profile in particular. The location is also queried by means of the GPS sensor 24 and any weather data. The setting value 52 is determined and selected on the basis of this data. In particular, the setting value 52 is called up from a database in which settings calculated or measured for the individual use cases are stored as a function of the respective boundary conditions.

Subsequently, the setting value 52 is sent to the working device 2 by means of Bluetooth and any existing settings in a memory of the control unit 16 of the working device 2 are overwritten. In this case, the values and curves (ignition curve, alpha-n map, speed limitation, etc.) necessary for operation are expediently stored in the memory and are read out by the control unit 16 for operating the single-cylinder internal combustion engine 10. When this has taken place, the completion is reported to the external device 20 in particular by means of the data connection 38 and is output by means of the display 22. For example, the control unit 18 is then restarted so that the setting value 52 can be used. Following this, the implement 2 with the new setting value 52 is used and in particular started. In summary, communication preferably takes place between the working device 2, in particular the control unit 16, and the external device 20, in particular software, the operating parameter 46 in particular being read out, for example the ignition timing, live performance data, such as a rotational speed , has a throttle valve position, temperatures, and / or fault conditions or is formed by means of these. The operating parameters 46 are used on the external device 20 for calculation and / or adjustment algorithms and thus the setting value 52 is created. This is expediently transmitted to the implement 2 and the latter is set thereon. So be Based on the result of the algorithms, certain parameters in the implement 2 are automatically changed without the user / user having to do anything. This enables a dynamic adaptation of the operating behavior of the working device 2 with the aid of the computing power and the memory of the external device 20.

For example, the control unit 16, that is to say the central processing unit of the implement 2, reads the operating parameter 46 (e.g. ignition timing, injection time) from a characteristic value matrix (characteristic diagram) stored in a non-volatile memory. Preferably, the permanently measured operating data (e.g. current speed, throttle valve position, temperatures) are also stored in this memory. The data stored in this memory are in particular the operating parameter 46, or the operating parameter 46 is formed at least by means of a number of these data.

The external device 20 is preferably suitable, in particular provided and set up, using the electronics 30 and the communication module 18 to read and write the memory of the working device 2 and thus to read out the operating parameters 46 and to write the setting value 52 therein and thus to change it , For example, the current speed, the throttle valve position and / or the temperatures are only read out, whereas, for example, the ignition timing and / or the injection time can both be read out and changed. The setting value 52 is preferably determined by using the computing power of the external device 20 by means of certain calculation algorithms in the software of the external device 20. The setting value 52 determined from the calculations is, for example, the target value 58 and is expediently compared with the operating parameter 46 , which is therefore an actual parameter. If there is a difference in the comparison, for example, the setting value 52 is transmitted to the implement 2 and the implement 2 is set accordingly. The implement 2 is thus dynamically adapted to the circumstances, with more algorithms and plausibility processes being taken into account can, as if carried out by means of the control unit 16 of the working device 2. In other words, the arithmetic operations are shifted to the external device 20, that is to say, for example, the smartphone, the tablet, the notebook or the smartwatch.

When determining the setting value 52, the user input that the user enters into the external device 20, for example at the beginning of the work or while working, is also taken into account in particular. The type of fuel, the type of wood or the like is suitably entered here. Furthermore, user input is used, for example, to personalize and / or select certain modes, such as, for example, a consumption-optimized eco-mode or a performance-optimized, enriched mode, in particular if the single-cylinder internal combustion engine 10 is based on injection technology instead of the carburetor 12.

Targeted activities of the user can be requested by means of the external device 20 by means of an interactive user program. Since the operating parameter 46 is transmitted, the current state of the implement 2 is known, and any change in the state is thus related to an activity (e.g.

Accelerating) of the user. Here, it is possible to request the user by means of the external device 20 so that a program, for example a speed curve, or a setting for determining the power of the working device 2, for a standard-compliant acceleration of the working device 2 from idling to the high speed range, can be carried out for a function-compliant function of the tool clutch (centrifugal clutch 8) or for an interactive setting for the carburetor 12.

FIG. 3 shows a modification of the portable implement 2, which is designed as a drilling machine. The portable working device 2 comprises an electric motor 62 which is powered by a battery 64. The setting of the electric motor 62 and the charging and discharging of the battery 64 are controlled and / or regulated by means of the control unit 16. Furthermore, the communication Module 18 is available, by means of which the data connection 38 to the external device 20 can be established. The external device 20 is not modified.

The tool 4 is driven by means of the electric motor 62 and is detachably fastened to the part of the portable working device 2 which comprises the electric motor 62. It is thus possible to use different tools 4, such as a drill, by means of which woodworking can take place. Another tool 4, which is also designed as a drill, makes it possible to drill holes in concrete. There are also other tools 4, each of which is a drill for different materials. Further tools 4 are also available, by means of which a screw connection can be made. For this purpose, the tools 4 are designed according to the screws and, for example, implemented as Phillips or slotted screw inserts (bits). Another of the tools 4 corresponds to a stir bar, so that cement or paint can be circulated by means of the latter.

The method 32, which is shown in FIG. 2, is again used to operate this portable working device 2. Here, too, the portable working device 2 is started in the first working step 34, and in the second working step 36 the data connection 38 is established between the communication module 18 and the external device 20. If the error occurs in the data connection 38, the third work step 40 is carried out again and the implement 2 is blocked. In this case, the battery 64 is separated from the electric motor 20 by means of the control unit 16, so that it cannot be operated.

Otherwise, the fourth work step 42 and thus the authentication of the external device 20 are carried out, the third work step 40 again being carried out in the event of an error. Otherwise, the operating parameter 46 is in turn transmitted from the working device 2 to the external device 20 in the fifth working step 44, which corresponds to a standby mode of the working device 2. In other words, the operating parameter 46 signals that the implement 2 is in the stand-by mode. The operating parameter 46 also contains which tool 4 is used last has been. The operating parameter 46 also contains the performance data of the electric motor 62 and the software version of the control unit 16.

In the sixth working step 48, a part or more parts, like all parts, of the operating parameter 46 are output and the user is thus informed which tool 4 was last used. The user then indicates which tool 4 is currently installed, provided this has been changed, or confirms that the same tool 4 is still installed. For example, the operating parameter 46 corresponds to the use of the portable implement 2 as a screwdriver, a Phillips screw insert being used as the tool 4. In the meantime, however, another tool 4 has been installed, which is a wood screwdriver. This is entered by the user on the touch screen 22. In the subsequent seventh work step 50, the setting value 52 is determined by means of the external device 20. In particular, a maximum speed and a maximum torque that can be applied by means of the electric motor 62 and for which the current tool 4 is suitable are determined. A maximum force to be applied by the user and a handling of the portable implement 2 are also determined as the setting value 52 as the setting value 52. In the eighth work step 54, the part of the setting value 52 which corresponds to the maximum torque / maximum speed is transmitted to the implement 2. Depending on this, the control unit 16 is set so that only the maximum speed / maximum torque is realized when the portable working device 2 is operated by means of the electric motor 62. In the ninth work step 56, the part of the setting value 52 that demonstrates the handling of the portable working device 2 to the user is output by means of the touch screen 22. The tenth work step 58 is omitted in this example, and the eleventh work step 60 is subsequently carried out and the implement 2 is operated as a drill.

The force exerted on the implement 2 by the user is monitored in particular below, in particular by means of a corresponding pressure sensor. This value is expediently carried out in a subsequent work step transmitted as an operating parameter 46 to the external device 20. Depending on this, the speed / torque / time duration for the operation of the working device 2 is determined as a new setting value 52 by means of the external device 20, so that a desired work result is realized. The new setting value 52 is transmitted to the working device 2, so that the current supply to the electric motor 60 is adjusted accordingly. Alternatively or in combination with this, for example, an acoustic or visual signal is output as a new setting value 52 by means of the external device 20 if a force that is too great or too little is exerted. The user is thus instructed to adjust the force accordingly.

In a further embodiment, the portable implement 2 is designed as a grinder / angle grinder or polishing machine. Here, the tool 4 is adapted accordingly and is preferably always detachably attached to a further component of the portable device 2, which has the electric motor 62.

In summary, in particular, automatic / autonomous communication takes place between the working device 2 and the external device 20 through independent reading and writing of the memory of the working device 2 by the external device 20. In particular, the resources of the external device 20, in particular computing power and memory instead of a microprocessor of the working device 2.

For example, the operating parameters 46 are processed by means of the external device 20 and only this operating parameters 46 adapted in this way are used to create the setting value 52. In other words, a calculation algorithm is applied to the operating parameter 46. The target value 28, which is for example a normal state, is preferably stored in the memory 26. The setpoint value 28 is preferably compared with the operating parameter 46. For example, the user input is also taken into account here. A method 34 is preferably used to perform a self-diagnosis, which is controlled in particular by means of the external device 20. For example, a deliberately falsified setting value 52 (feedforward control used, for example, by adjusting the ignition timing, the injection time), and the subsequent reaction of the implement 2 is checked, in particular by means of the operating parameters 6 and 40. In other words, in particular a subsequent measurement and evaluation of the speed responses takes place. This enables automatic calibration up to performance optimization.

Alternatively or in combination with this, method 34 is used to carry out service programs which are controlled by means of external device 20. In particular, depending on the user input, in particular the selection of the profile, a characteristic curve or a characteristic diagram is changed, which is thus in particular the setting value 52. The setting value 52 is used, in particular, to adjust the carburetor or change the injection control, depending on the fuel tank. The setting value 52 thus always calibrates the implement 2, which is carried out, for example, on a regular basis. In particular, an instantaneous power, a consumption, a CO 2 emission and / or an efficiency is determined on the basis of the operating parameter 46 by means of the external device 20 and is displayed to the user.

On the basis of the comparison with the target value 28, wear and a necessary maintenance are determined, in particular if the setting value 52 is used to make a subsequent correction. In this case, in particular the operating parameters 46 retrieved by means of the external device 20 are stored and used for maintenance. The external device 20 expediently functions here as a digital checkbook. In addition, a safety shutdown of the working device 2 is also possible if this shows an abnormal behavior, which is determined in particular by means of the comparison.

In summary, in addition to the processing of mathematical algorithms and operations, certain operating parameters 46, that is to say in particular actual states such as a rotational speed, a throttle valve position, a temperature, a rotational speed curve over a few revolutions, are also compared with setpoint values stored in the external device 20 28, which are therefore standard values. The target values 28 are preferably available as a table for normal operating behavior. If the operating parameters 46 read out from the memory of the working device 2 deviate to a certain extent from these stored target values 28, this indicates an abnormal operating behavior of the machine. This can be communicated directly to the user either by overwriting the target values 28, in particular the operating characteristic values, or as an error (message) / information. For example, there is an indication of a possibly clogged air filter or necessary maintenance

Process 34 suitably personalizes working device 2 and thus blocks use, unless external device 20 has been used and authenticated. In particular, an initial key is first exchanged, a specific value being expediently written into a memory of the working device 2 by means of the external device 20. If this does not take place, the implement 2 is preferably stopped, for example after a certain number of revolutions. For this purpose, a sector of the working device 2 is preferably described once or regularly by the external device 20 for blocking use. If there are no values in this sector in a certain period of time after the start, for example a few seconds, the implement 2 is automatically switched off. Thus, the implement 2 is only released if there is one

("Paired") external device 20 into operation.

For example, the data link 38 is permanent. In this way, continuous monitoring of the operating parameters 46 by means of the external device 20 is made possible. In this way, performance and efficiency of mixture formation and combustion can be monitored. It is also possible to monitor the idle speed and the high speed range. The operating parameters 46 are temporarily stored in the control unit 16 and / or in the ignition system 16, for example, and are only transmitted and evaluated after the data connection 38 has been established and / or the electronics 30 or suitable software have been started. As a result, the implement 2 is monitored by means of the external device 20 and it is detected whether the carburetor 12 is set correctly or the implement 2 is running in accordance with the standards. In particular, the operating parameters 46 are compared with the target values 28. It is expediently checked whether the idling speed is in the specified range, whether the idling speed is stable, whether the idling pattern of the implement 2 is correct, whether the throttle response from idling is correct, whether the starting behavior of the implement 2 is within the normal range, whether the centrifugal clutch 8 engages in the desired speed range, whether the working speed is in the specified range, and whether the implement 2 reaches the specified final speed. The operating parameters 46 and the target values 28 are adapted accordingly. As an alternative or in combination with this, in particular a power measurement of the working device 2 takes place, with first an acceleration into the final speed (high speed) and then a downward rotation into idle. The operating parameter 46 is output in particular by means of the display 22 (touchscreen) and the user is thus informed about the state of the implement 2. A request can also be made to set the carburetor 12. If, even with an adequate setting, the comparison with the target values 28 is incorrect, ie the standard values are not reached, a recommendation for cleaning the air filter is issued, for example, or a recommendation to visit a workshop. The method 34 is thus beneficial to environmental protection, the consumption of gasoline and the longevity of the implement 2.

In particular, the carburetor 12 is set on the basis of the setting value 52. If the carburetor 12 is designed purely mechanically, the individual setting values 52 are output, for example, only by means of the touch screen 22. If the carburetor 12 is at least partially electronic, the setting value 52 is transmitted to the implement 2, for example by means of the data connection 38, and the carburetor 12 is set automatically.

For example, the carburetor 12 is set interactively by means of the setting value 52. In this way, the setting process can be carried out comparatively easily and quickly even by an unversed user. The setting value 52 is for example, as an interactive photo series with corresponding detailed images of the carburetor 12 and instructions such as the instantaneous speed on the touchscreen 22 of the external device 20. To adjust the carburetor 12, the implement 2, in particular the single-cylinder internal combustion engine 10, is idling, which is transmitted as operating parameters 46. By means of the setting value 52, the user is asked to turn an LA / T screw in the appropriate direction until the idling speed is, for example, 500 rpm above the nominal idling speed. The current speed is always transmitted as operating parameters 46 to the external device 20 and output by means of the touch screen 22. When the desired speed is reached, the speed is shown in green on the display, for example. Following this, the animation prompts the user, for example, to turn the L screw until the speed increases and the highest speed is found. Here, too, the current speed is transmitted to the external device 20 as the operating parameter 46. If, for example, the speed exceeds a limit, for example 3800 rpm at 3300 rpm nominal idling speed, the user is asked to correct the speed again with the LA / T screw to 500 rpm above the speed specification. The process is repeated until the highest speed is found. The user is then asked to turn the L-screw in the opposite direction until the idle speed drops by a certain value, in particular 500 rpm. The LA / T screw is then set to the nominal idle speed.

Following this, the user is asked, for example, by means of the setting value 52 output via the touch screen 22, to give full throttle for a certain period of time, such as 10 seconds, and then to let the implement 2 turn again. The external device 20 is used to analyze which final speed the working device 2 has reached and whether the mixture is correctly set for the high-speed range. After this process is considered new Setting value 52 shows in which direction and how many revolutions the user has to turn the H-screw. This process is repeated until the position of the H screw corresponds to the desired setting.

The setting process is now complete. For example, one of the operating parameters 46 is then compared with the target value 28 in order to check whether the performance parameters of the implement 2 correspond to the standard values and the setting of the carburetor 12 was successful. For example, there is an additional setting value 52, by means of which it is possible to set the carburetor 12 to a basic state. In this way it is comparatively easy to reset the implement 2 when the carburetor 12 is adjusted, and the single-cylinder internal combustion engine 10 can always be started, albeit with reduced efficiency.

If necessary, a speed limitation and / or the ignition characteristic of the ignition system 14 is varied during the adjustment of the carburetor 12 by means of the adjustment value 52, wherein a suitable additional adjustment value 52 is expediently used. This enables a more precise setting. In an alternative to this, the carburetor 12 is configured electronically and has at least one electromagnetic valve which engages in the fuel path of the carburetor 12. The control of the electromagnetic valve takes place, for example, by means of the control unit 16, in particular the setting value 52, which was determined by means of the external device 20, is used. In particular, the setting of the electromagnetic valve is changed and the response of the single-cylinder internal combustion engine 10 is then transmitted to the external device 20 as an operating parameter 46. The user is asked, for example, by means of the touchscreen 22 to operate the implement 2 and operate it, for example, in idle (idle), at full load or in the high-rev range. Here, the reaction of the implement 2 is transmitted as operating parameters 46 to the external device 20 and there a mixed map determined as a setting value 52, which is written back to the control unit 16. In summary, the data connection 38 is first established between the working device 2 and the external device 20. Subsequently, the external device 20 prompts the user to start the working device 2, in particular the single-cylinder internal combustion engine 10, in idle mode to let. Following this, the ignition system 14 is continuously adjusted by means of the external device 20, so that the mixture is enriched. In this way, the mixture is adjusted to an optimal ratio with the aid of the speed level that is set. The data obtained in this way are written back into the mixture characteristic map of the ignition system 14 as the setting value 52.

In a further step, the user is asked, for example, to go full throttle from idle. The speed increase is analyzed as operating parameter 46 in external device 20 and further conclusions are drawn about the mixture composition. For example, the mixture ratio changes during acceleration, which is done, for example, electrically by means of an actuator. The process is in particular repeated several times, and the data obtained in this way are written back into the mixture characteristic map of the ignition system 14 as a setting value 52.

In a further step, the user is expediently asked to go full throttle for a few seconds. The high-speed range of the working device 20 is analyzed as an operating parameter 46 by means of the external device 20. By adjusting the mixture ratio, the maximum speed of the implement 2 can be set very precisely, as is customary in the conventional carburetor 12. The data obtained in this way are written back as a set value 52 into the mixture map of the ignition system 14. And the process ends and the user is informed. The invention is not restricted to the exemplary embodiment described above. Rather, other variants of the invention can also be derived from this by the person skilled in the art without departing from the subject matter of the invention. In particular, all in connection with the implementation Individual features described in the game can also be combined with one another in other ways without departing from the subject matter of the invention.

LIST OF REFERENCE NUMBERS

2 portable tools

4 tools

6 saw chain

8 centrifugal clutch

10 single-cylinder internal combustion engine

12 carburetors

14 ignition system

16 control unit

18 communication module

20 external device

22 touchscreen

24 GPS sensor

26 memory

28 target value

30 electronics

32 procedure

34 Procedure for setting the implement 36 second work step

38 Data connection

40 third step

42 fourth step

44 fifth step

46 Operating parameters

48 sixth step

50 seventh step

52 set value

54 eighth step

56 ninth step

58 tenth step

60 eleventh step

62 electric motor 64 battery

Claims

Expectations

1. Method (34) for setting a, in particular hand-held, implement (2), in which

- A data connection (38) is established between the working device (2) and an external device (20),

- An operating parameter (46) is transmitted from the working device (2) to the external device (20), and

- A setting value (52) for the implement (2) is determined by means of the external device (20).

2. The method (34) according to claim 1,

characterized,

that the setting value (52) is output by means of a display (22) of the external device (20).

3. The method (34) according to claim 1 or 2,

characterized,

that the setting value (52) is transmitted to the implement (2) by means of the data connection (38).

4. The method (34) according to claim one of claims 1 to 3,

characterized,

that the setting value (52) is determined as a function of an ambient condition.

5. The method (34) according to claim 1 to 4,

characterized,

that the setting value (52) is determined as a function of a user input.

6. The method (34) according to any one of claims 1 to 5,

characterized that the operating parameter (46) is output by means of the external device (20).

7. The method (34) according to any one of claims 1 to 6,

characterized,

that the operating parameter (46) is compared with a target value (28) that is stored in the external device (20).

8. The method (34) according to any one of claims 1 to 7,

characterized,

that a Bluetooth standard is used for the data connection (38).

9. The method (34) according to any one of claims 1 to 8,

characterized,

that the working device (2) is blocked if an error occurs in the data connection (38) and / or that the external device (20) is authenticated.

10. Use of an external device (20) for setting a, in particular hand-held, working device (2), a data connection (38) being established between the working device (2) and the external device (20).