Method for Determining Information About a Change of a Mobile Gardening, Forestry, Construction or Soil-Working Device, Mobile Gardening, Forestry, Construction or Soil-Working Device and System

Abstract

A method determines information about a change of a mobile gardening, forestry, construction or soil-working device, wherein the gardening, forestry, construction or soil-working device has a motor drive system. The method includes: a) repeated detection of a characteristic variable of the motor drive system in respect of time, b) comparison of at least one first value of the detected characteristic variable or a variable based on it from a first time period and at least one second value of the detected characteristic variable or the variable based on it from a second time period with one another, and c) storage of the information about the change of the gardening, forestry, construction or soil-working device depending on a result of the comparison.

Claims

1. A method for determining information about a change of a mobile gardening, forestry, construction or soil-working device, wherein the gardening, forestry, construction or soil-working device has a motor drive system, the method comprising the steps of: a) repeatedly detecting a characteristic variable of the motor drive system in respect of time; b) comparing at least one first value of the detected characteristic variable or a variable based on it from a first time period and at least one second value of the detected characteristic variable or the variable based on it from a second time period with one another; and c) storing the information about the change of the gardening, forestry, construction or soil-working device depending on a result of the comparison.

2. The method according to claim 1, wherein the gardening, forestry, construction or soil-working device has a variable memory device and/or an event memory device, and wherein step a) comprises: storing the detected characteristic variable or a variable based on it in the variable memory device, and wherein step b) comprises: comparing at least the first value of the stored characteristic variable or the stored variable or a variable based on it and at least the second value of the stored characteristic variable or the stored variable or the variable based on it with one another, and/or wherein step c) comprises: storing the information in the event memory device.

3. The method according to claim 2, wherein the variable memory device is a non-volatile variable memory device, and/or wherein the event memory device is a non-volatile event memory device and/or is a ring memory.

4. The method according to claim 1, wherein the second time period is longer than the first time period, and/or wherein the second time period at least partially precedes the first time period.

5. The method according to claim 4, wherein the second time period is a total run time period apart from the first time period, and/or the second time period completely precedes the first time period.

6. The method according to claim 1, wherein the second time period has first time periods preceding a current, first time period, and/or wherein the second value is a mean value and/or an accumulated value of values of the detected characteristic variable or the variable based on it from the first time periods preceding the current, first time period.

7. The method according to claim 1, wherein step b) comprises: forming a ratio of at least the first value and at least the second value in relation to one another, and wherein step c) comprises: storing the information depending on whether the ratio is equal to or greater than a ratio maximum limit value or equal to or less than a ratio minimum limit value, wherein the ratio minimum limit value is less than the ratio maximum limit value.

8. The method according to claim 1, wherein step b) comprises: repeatedly comparing at least one, current, first value of the detected characteristic variable or the variable based on it from a current first time period and at least one, current, second value of the detected characteristic variable or the variable based on it from a current second time period with one another in respect of time, and wherein step c) comprises: storing the information about the change of the gardening, forestry, construction or soil-working device depending on a result of the repeated comparison in respect of time and whether information about a change of the gardening, forestry, construction or soil-working device had not been stored beforehand depending on the result of the preceding comparison.

9. The method according to claim 1, wherein the information comprises: a timestamp and/or an identifier identifying a type of the characteristic variable or the variable based on it.

10. The method according to claim 1, wherein the characteristic variable is a rotation speed, a temperature, a pressure, a voltage, a current, a duration, and/or a time point, and/or wherein the variable based on the characteristic variable is based on an intermediate variable based on the characteristic variable, wherein the intermediate variable is at least one starting stroke, at least one successful start, a mixture setting, a number of mixture adjustments, a number of interventions by a motor management system of the motor drive system, an ignition adjustment, at least one stopping operation, at least one acceleration, at least one deceleration, an environmental and/or operating condition, a tool identification process, an application identification process, and/or an interaction with an environment, and/or wherein the variable based on the rotation speed is starting strokes for each successful start and/or a ratio of an acceleration when a user-actuable motor operator control element for operating the motor drive system is actuated, and a deceleration when the motor operator control element is not actuated successively, in relation to one another.

11. The method according to claim 1, further comprising: detecting and/or storing the characteristic variable and/or a variable based on it, and/or storing the information depending on an operating state of the motor drive system.

12. The method according to claim 1, wherein the motor drive system is an internal combustion drive engine system and/or an electric motor drive system.

13. The method according to claim 1, wherein the gardening, forestry, construction or soil-working device is manually operated and/or controlled, and/or wherein the gardening, forestry, construction or soil-working device is a lawnmower, a scarifier, a grass trimmer, a circular trimmer, a brushcutter, a hedge clipper, a hedge cutter, a woodcutter, a saw, an angle grinder, a pole-mounted pruner, a lopper, an olive harvester, a leaf blower, a blower device, a suction device, a leaf vacuum, a shredder, a sweeping device, a sweeping roller, a sweeping brush, a pressure washer, a cleaning device, a soil-drilling device, a stonecutter, a rotovator or a sprayer.

14. The method according to claim 1, further comprising: wirelessly transmitting the stored information or information based on it from the gardening, forestry, construction or soil-working device to a diagnostic device.

15. A mobile gardening, forestry, construction or soil-working device for determining information about a change of the gardening, forestry, construction or soil-working device, comprising: a motor drive system of the gardening, forestry, construction or soil-working device, wherein the gardening, forestry, construction or soil-working device is configured to: repeatedly detect a characteristic variable of the motor drive system in respect of time, compare at least one first value of the detected characteristic variable or a variable based on it from a first time period and at least one second value of the detected characteristic variable or the variable based on it from a second time period with one another, and store the information about the change of the gardening, forestry, construction or soil-working device depending on a result of the comparison.

16. A system, comprising: a mobile gardening, forestry, construction or soil-working device according to claim 15; and a diagnostic device, wherein the gardening, forestry, construction or soil-working device is designed for transmitting the stored information or information based on it from the gardening, forestry, construction or soil-working device to the diagnostic device.

17. The system according to claim 16, wherein the transmitting is a wireless transmission.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0048] FIG. 1 schematically shows a system according to an embodiment of the invention having a mobile gardening, forestry, construction or soil-working device and a diagnosis device and an exemplary method for determination of information about a change of the mobile gardening, forestry, construction or soil-working device.

[0049] FIG. 2 schematically shows the details of the gardening, forestry, construction or soil-working device and the method of FIG. 1.

[0050] FIG. 3 schematically shows further details of the system, the gardening, forestry, construction or soil-working device and the method of FIG. 1.

[0051] FIG. 4 schematically shows a variation over time of a variable in the form of starting strokes for each successful start.

[0052] FIG. 5 schematically shows a variation over time of a variable in the form of a ratio of an acceleration and a deceleration in relation to one another.

DETAILED DESCRIPTION OF THE DRAWINGS

[0053] FIGS. 1 and 3 show a system 100. The system 100 has a mobile gardening, forestry, construction or soil-working device 1 for determination of information Info about a change VA in the gardening, forestry, construction or soil-working device 1, as shown in FIGS. 1 to 5.

[0054] The gardening, forestry, construction or soil-working device 1 has a motor drive system 2.

[0055] The gardening, forestry, construction or soil-working device 1 is designed for repeated detection of, in particular detects, a characteristic variable KG of the motor drive system 2; for comparison of, in particular compares, at least one first value W1 of the detected characteristic variable or a variable BG1 based on it from a first time period ZR1 and at least one second value W2 of the detected characteristic variable or the variable BG2 based on it from a second time period with one another; for storage of, in particular stores, the information Info about the change VA of the gardening, forestry, construction or soil-working device 1 depending on a result of the comparison.

[0056] FIGS. 1 to 3 show a method for the determination of the information about the change VA of the mobile gardening, forestry, construction or soil-working device 1. The method comprises the steps of: a) repeated detection of a characteristic variable KG of the motor drive system 2 in respect of time, in particular by means of the gardening, forestry, construction or soil-working device 1, b) comparison of at least the first value W1 of the detected characteristic variable or the variable BG1 based on it from the first time period ZR1 and at least the second value W2 of the detected characteristic variable or the variable BG2 based on it from a second time period ZR2 with one another, in particular by means of the gardening, forestry, construction or soil-working device 1, and c) storage of the information Info about the change VA of the gardening, forestry, construction or soil-working device 1 depending on a result of the comparison, in particular by means of the gardening, forestry, construction or soil-working device 1.

[0057] Specifically, the method comprises the step of: transmission of the stored information Info or information based on it from the gardening, forestry, construction or soil-working device 1, in particular to a diagnosis device 6.

[0058] The system 100 has the diagnosis device 6. The gardening, forestry, construction or soil-working device 1 is designed: for the transmission of, in particular transmits, the stored information Info or information based on it from the gardening, forestry, construction or soil-working device 1 to the diagnosis device 6.

[0059] Furthermore, the gardening, forestry, construction or soil-working device is manually operated and/or controlled, in particular hand-held.

[0060] In the exemplary embodiment shown, the gardening, forestry, construction or soil-working device 1 is a saw 1′. In alternative exemplary embodiments, the gardening, forestry, construction or soil-working device can be a lawnmower, a scarifier, a grass trimmer, a circular trimmer, a brushcutter, a hedge clipper, a hedge cutter, a woodcutter, an angle grinder, a pole-mounted pruner, a lopper, an olive harvester, a leaf blower, a blower device, a suction device, a leaf vacuum, a shredder, a sweeping device, a sweeping roller, a sweeping brush, a pressure washer, a cleaning device, a soil-drilling device, a stonecutter, a rotovator or a sprayer.

[0061] In addition, the motor drive system 2 has an internal combustion drive engine system and/or electric motor drive system 2′. In particular, the motor drive system 2 is the internal combustion drive engine system and/or electric motor drive system 2′.

[0062] The gardening, forestry, construction or soil-working device 1 further has a variable memory device 3 and/or an event memory device 4. Step a) comprises: storage of the detected characteristic variable or a variable ZG1, ZG2 based on it in the variable memory device 3. Step b) comprises: comparison of at least the first value W1 of the stored characteristic variable or the stored variable or a, in particular the, variable BG1 based on it and at least the second value W2 of the stored characteristic variable or the stored variable or the variable BG2 based on it with one another. Additionally or alternatively, step c) comprises: storage of the information Info in the event memory device 4.

[0063] Specifically, the variable memory device 3 is a non-volatile variable memory device 3′. Additionally or alternatively, the event memory device 4 is a non-volatile event memory device 4′ and/or has a ring memory 4″, in particular is the ring memory 4″.

[0064] In addition, the second time period ZR2 is longer than the first time period ZR1, in particular the second time period ZR2 is a total run time period GZR apart from the, in particular current, first time period ZR1. Additionally or alternatively, the second time period ZR2 at least partially, in particular completely, precedes the, in particular current, first time period ZR1.

[0065] Furthermore, the second time period ZR2 has first time periods ZR1′, in particular preceding the, in particular current, first time period ZR1. In particular, the second time period ZR2 is the first time periods ZR1′. Additionally or alternatively, the second value W2 is a mean value MW and/or an accumulated value of values W1′ of the detected characteristic variable or the variable BG1′ based on it from first time periods ZR1′, in particular preceding the, in particular current, first time period ZR1.

[0066] In addition, step b) comprises: forming a ratio VE of at least the first value W1 and at least the second value W2 in relation to one another, in particular by means of the gardening, forestry, construction or soil-working device 1. Step c) comprises: storage depending on whether the ratio VE is equal to or greater than a ratio maximum limit value VEmax or equal to or less than a ratio minimum limit value VEmin, in particular wherein the ratio minimum limit value VEmin is less than the ratio maximum limit value VEmax.

[0067] In FIGS. 4 and 5, the ratio VE is equal to or greater than the ratio maximum limit value VEmax. Therefore, it is stored.

[0068] Step b) further comprises: repeated comparison of at least one, in particular current, first value W1 of the detected characteristic variable or the variable BG1 based on it from an, in particular current, first time period ZR1 and at least one, in particular current, second value W2 of the detected characteristic variable or the variable BG2 based on it from an, in particular current, second time period ZR2 with one another in respect of time. Step c) comprises: storage of the information Info about the change VA of the gardening, forestry, construction or soil-working device 1 depending on a result of the repeated comparison in respect of time and whether information about a change of the gardening, forestry, construction or soil-working device had not been stored, in particular directly, beforehand depending on at least the result at least of the, in particular directly, preceding comparison.

[0069] That is to say, if after storage of the information for at least one execution of the method, in particular of step b) and/or step c), or one working cycle, a condition for storage is no longer met, renewed storage of the information is permitted again in subsequent or following executions of the method, in particular of step b) and/or step c), or working cycles.

[0070] In addition, the information Info comprises: a timestamp ZS and/or an identifier ID identifying a type of the characteristic variable or the variable BG based on it.

[0071] Furthermore, the characteristic variable KG has a rotation speed n, a temperature T, a pressure p, a voltage U, a current I, a duration and/or a time point. In particular, the characteristic variable is such a type of characteristic variable. Additionally or alternatively, the variable BG based on the characteristic variable KG is based on an intermediate variable ZG based on the characteristic variable KG. The intermediate variable ZG has at least one starting stroke A, at least one successful start ES, a mixture setting, a number of mixture adjustments, a number of interventions by a motor management system of the motor drive system, an ignition adjustment, at least one stopping operation, at least one acceleration BE, at least one deceleration VZ, an environmental and/or operating condition, a tool identification process, an application identification process and/or an interaction with an environment. In particular, the intermediate variable is such a type of intermediate variable. Further additionally or alternatively, the variable BG based on the characteristic variable KG, in particular the rotation speed n, has starting strokes for each successful start AES, as shown in FIG. 4, and/or a ratio VEBV of an acceleration BE, in particular when a user-actuable motor operator control element 5 for operating the motor drive system 2 is actuated, and a deceleration VZ, in particular when the motor operator control element 5 is not actuated successively, in relation to one another, as shown in FIG. 5. In particular, the variable based on it is such a type of variable.

[0072] In a properly functioning gardening, forestry, construction or soil-working device with low pressure injection, the starting strokes for each successful start AES move between 1.3 and 1.5. If the value is clearly above this, e.g. greater than or equal to 2, this indicates a change and therefore a problem. In a properly functioning gardening, forestry, construction or soil-working device without low-pressure injection, the values may also be considerably greater, in particular greater than 2, since in this case the advantage of low-pressure injection (pilot control of ignition/injection on the basis of temperature and ambient pressure) is lost.

[0073] In the event of a change of a gardening, forestry, construction or soil-working device from a properly functioning state, as shown on the left-hand side in FIG. 5, to a broken state, in particular on account of a broken bearing, as shown on the right-hand side in FIG. 5, the motor drive system, in particular the power unit, has to provide more power for the acceleration due to the increased friction. The duration of the acceleration is increased or extended. In association, the deceleration becomes steeper. Therefore, the ratio of the acceleration and the deceleration in relation to one another changes.

[0074] In addition, the method comprises: detection and/or storage of the characteristic variable KG and/or a, in particular the, variable ZG, BG based on it and/or storage of the information Info depending on an operating state of the motor drive system 2.

[0075] As is made clear by the exemplary embodiments shown and explained above, the invention provides an advantageous method for determination of information about a change of a mobile gardening, forestry, construction or soil-working device, an advantageous mobile gardening, forestry, construction or soil-working device for determination of information about a change of the gardening, forestry, construction or soil-working device, and an advantageous system having such a gardening, forestry, construction or soil-working device, wherein the method, the gardening, forestry, construction or soil-working device and the system each have improved properties.

[0076] The foregoing disclosure has been set forth merely to illustrate the invention and is not intended to be limiting. Since modifications of the disclosed embodiments incorporating the spirit and substance of the invention may occur to persons skilled in the art, the invention should be construed to include everything within the scope of the appended claims and equivalents thereof.