Method for Operating a Construction-Material And/or Viscous-Material Pump for Conveying Construction Material And/or Viscous Material, and Construction-Material And/or Viscous-Material Pump for Conveying Construction Material And/or Viscous Material

Abstract

A method operates a construction material and/or viscous-material pump having: at least one conveying cylinder, the conveying cylinder being designed to receive and discharge construction material and/or viscous material; and at least one conveying piston, the conveying piston being disposed in the conveying cylinder for movement in order to draw construction material and/or viscous material into the conveying cylinder and to displace drawn-in construction material and/or viscous material out of the conveying cylinder. The method includes: conveying construction material and/or viscous material, by movement of the conveying piston in order to draw in and displace construction material and/or viscous material; sensing a position variable during the movement, the position variable characterizing a position of the conveying piston along its stroke in the conveying cylinder; sensing a conveying variable during the movement, the conveying variable being of a different type than the position variable and characterizing the conveying of construction material and/or viscous material by the pump; and determining a profile of a subsequent movement of the conveying piston by linking the sensed position variable and the sensed conveying variable to each other; and controlling the subsequent movement in accordance with the determined profile.

Claims

1-15. (canceled)

16. A method for operating a construction material and/or thick matter pump for conveying construction material and/or thick matter, wherein the construction material and/or thick matter pump comprises: at least one conveying cylinder, the conveying cylinder being configured to receive and discharge the construction material and/or thick matter, and at least one conveying piston, the conveying piston being arranged movably in the conveying cylinder in order to take in the construction material and/or thick matter into the conveying cylinder and in order to displace taken-in construction material and/or thick matter out of the conveying cylinder, the method comprising: conveying the construction material and/or thick matter by movement of the conveying piston in order to take in and displace the construction material and/or thick matter; detecting at least one position variable during the movement, the position variable characterizing a position of the conveying piston along its stroke in the conveying cylinder; detecting at least one conveying variable during the movement, the conveying variable being distinct from the position variable and characterizing the conveying of the construction material and/or thick matter by way of the construction material and/or thick matter pump; determining a profile of a subsequent movement of the conveying piston by linking the detected position variable and the detected conveying variable with one another; and controlling the subsequent movement in accordance with the determined profile.

17. The method as claimed in claim 16, wherein the conveying variable characterizes an introduction of energy from the conveying piston into the construction material and/or thick matter.

18. The method as claimed in claim 17, wherein the conveying variable characterizes a pressure acting on the construction material and/or thick matter in the conveying cylinder, and/or the conveying variable characterizes an excitation of at least one part of the construction material and/or thick matter pump caused by the introduction of energy from the conveying piston into the construction material and/or thick matter.

19. The method as claimed in claim 17, the method further comprising: determining a displacement start position, at which the conveying piston starts to displace taken-in construction material and/or thick matter out of the conveying cylinder, by linking the detected position variable during the displacement, or to the determining displacement start position, and the detected conveying variable that characterizes the introduction of energy from the conveying piston into construction material and/or thick matter during the displacement, or to the determining displacement start position, with one another, and determining the profile on the basis of the determined displacement start position.

20. The method as claimed in claim 19, the method further comprising: determining a degree of filling of the conveying cylinder with the construction material and/or thick matter based on the determined displacement start position; determining the profile of a subsequent movement for the intake based on the determined degree of filling; and controlling the subsequent movement for the intake in accordance with the determined profile.

21. The method as claimed in claim 20, the method further comprising: ascertaining a duration for a preceding movement for the intake causing the determined displacement start position and/or the determined degree of filling; determining a conveying rate by linking the determined displacement start position and/or the determined degree of filling and the ascertained duration with one another; and determining the profile of a subsequent movement for the intake on the basis of the determined conveying rate.

22. The method as claimed in claim 21, the method further comprising: decreasing a speed and/or increasing a standstill duration of the profile from a preceding intake to a subsequent intake until the displacement start position no longer approaches an intake end position and/or the degree of filling and/or the conveying rate no longer increase(s), and/or increasing a speed and/or decreasing a standstill duration of the profile from a preceding intake to a subsequent intake until the displacement start position moves away from an intake end position and/or the degree of filling and/or the conveying rate decrease(s).

23. The method as claimed in claim 19, the method further comprising: determining the profile of a subsequent movement from an intake end position to a displacement start position, on the basis of the determined displacement start position; and controlling the subsequent movement to the displacement start position in accordance with the determined profile.

24. The method as claimed in claim 23, the method further comprising: determining the profile such that the conveying piston accelerates from the intake end position, and subsequently decelerates before the displacement start position.

25. The method as claimed in claim 20, the method further comprising: ascertaining a duration for a preceding movement for the intake and/or for the determined subsequent movement for the intake and/or for a preceding movement to the displacement start position and/or for the determined subsequent movement to the displacement start position; determining a remaining duration for a subsequent movement for the displacement and/or to a displacement end position, by linking the ascertained duration and a specified cycle and/or stroke duration and/or a specified conveying rate with one another; determining the profile of the subsequent movement for the displacement on the basis of the determined remaining duration; and controlling the subsequent movement for the displacement in accordance with the determined profile.

26. The method as claimed in claim 17, the method further comprising: determining the profile of a subsequent movement for the displacement by linking the detected position variable during the movement for the displacement and the detected conveying variable that characterizes the introduction of energy from the conveying piston into the construction material and/or thick matter during the movement for the displacement with one another such that an excitation of at least one part of the construction material and/or thick matter pump caused by the introduction of energy from the conveying piston into construction material and/or thick matte is reduced or prevented; and controlling the subsequent movement for the displacement in accordance with the determined profile.

27. The method as claimed in claim 16, wherein the construction material and/or thick matter pump has an adjustable line switch, and the conveying variable characterizes a position of the adjustable line switch.

28. The method as claimed in claim 27, the method further comprising: determining the profile of a subsequent movement for the displacement to a displacement end position and/or for the intake from the displacement end position and/or for the intake to an intake end position and/or for the displacement from the intake end position, by linking the detected position variable and the detected conveying variable that characterizes the position of the line switch with one another such that the subsequent movement of the conveying piston and a subsequent adjustment of the line switch are synchronized; and controlling the subsequent movement to the displacement end position and/or from the displacement end position and/or to the intake end position and/or from the intake end position in accordance with the determined profile.

29. The method as claimed in claim 26, further comprising: selecting an optimization target from a set of several selectable optimization targets; and determining the profile in accordance with the selected optimization target.

30. A construction material and/or thick matter pump for conveying construction material and/or thick matter, comprising: at least one conveying cylinder, the conveying cylinder being configured to receive and discharge the construction material and/or thick matter; at least one conveying piston, the conveying piston being arranged movably in the conveying cylinder in order to take in the construction material and/or thick matter into the conveying cylinder and in order to displace taken-in construction material and/or thick matter out of the conveying cylinder, wherein the construction material and/or thick matter pump is configured to convey the construction material and/or thick matter by movement of the conveying piston in order to take in and displace construction material and/or thick matter; at least one travel sensor device, the travel sensor device being configured to detect at least one position variable during the movement, the position variable characterizing a position of the conveying piston along its stroke in the conveying cylinder; at least one conveying sensor device, the conveying sensor device differing from the travel sensor device and being configured to detect at least one conveying variable during the movement, the conveying variable being distinct from the position variable and characterizing the conveying of the construction material and/or thick matter by way of the construction material and/or thick matter pump; and a determining device, the determining device being configured to determine a profile of a subsequent movement of the conveying piston by linking the detected position variable and the detected conveying variable with one another; and a control device, the control device being configured to at least control the subsequent movement of the at least one conveying piston in accordance with the determined profile.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0049] FIG. 1 shows a schematic circuit diagram of a construction material and/or thick matter pump according to the invention for conveying construction material and/or thick matter.

[0050] FIG. 2 shows a schematic view of the construction material and/or thick matter pump of FIG. 1.

[0051] FIG. 3 shows a flow diagram of a method according to the invention for operating the construction material and/or thick matter pump of FIG. 1 for conveying construction material and/or thick matter.

[0052] FIG. 4 shows a schematic view of a movement of a conveying piston in a conveying cylinder of the construction material and/or thick matter pump of FIG. 1 for displacing taken-in construction material and/or thick matter out of the conveying cylinder, a graph of a conveying variable that characterizes a pressure acting on construction material and/or thick matter in the conveying cylinder, a graph of a profile of a subsequent movement of the conveying piston, and a graph of a conveying variable that characterizes a position of a line switch of the construction material and/or thick matter pump of FIG. 1 of the method of FIG. 3.

[0053] FIG. 5 shows a schematic view of a movement of the conveying piston for taking construction material and/or thick matter into the conveying cylinder, a graph of a profile of a preceding movement of the conveying piston, and a graph of the conveying variable that characterizes the position of the line switch of the method of FIG. 3.

[0054] FIG. 6 shows a schematic view of the movement of the conveying piston for taking construction material and/or thick matter into the conveying cylinder, a graph of the profile of subsequent movement of the conveying piston, and a graph of the conveying variable that characterizes the position of the line switch of the method of FIG. 3.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

[0055] FIGS. 1 and 2 show a construction material and/or thick matter pump 1 for conveying construction material and/or thick matter DS. The construction material and/or thick matter pump has at least one conveying cylinder 2a, 2b, at least one conveying piston 3a, 3b, at least one travel sensor device 4a, 4b, at least one conveying sensor device 5′, 5″, a determining device 6, and a control device 7. The conveying cylinder 2a, 2b is configured to receive and discharge construction material and/or thick matter DS. The conveying piston 3a, 3b is arranged movably in the conveying cylinder 2a, 2b in order to take in construction material and/or thick matter DS into the conveying cylinder 2a, 2b and in order to displace taken-in construction material and/or thick matter DS out of the conveying cylinder 2a, 2b. The construction material and/or thick matter pump 1 is configured to convey construction material and/or thick matter DS by the conveying piston 3a, 3b in order to take in and displace construction material and/or thick matter DS. The travel sensor device 4a, 4b is configured to detect at least one position variable PGa, PGb during the movement. The position variable PGa, PGb characterizes a position PGa, PGb of the conveying piston 3a, 3b along its stroke HU in the conveying cylinder 2a, 2b. Conveying sensor device 5′, 5″ differs from the travel sensor device 4a, 4b. The conveying sensor device 5′, 5″ is furthermore configured to detect at least one conveying variable FG′, FG″ during the movement. The conveying variable FG′, FG″ is distinct from the position variable PGa, PGb. Furthermore, the conveying variable FG′, FG″ characterizes the conveying of construction material and/or thick matter DS by means of the construction material and/or thick matter pump 1. The determining device 6 is configured to determine a profile PR of a subsequent movement of the conveying piston 3a, 3b by linking the detected position variable PGa, PGb and the detected conveying variable FG′, FG″ with one another. The control device 7 is configured at least to control the subsequent movement in accordance with the determined profile PR.

[0056] FIGS. 1 to 4 and 6 show a method for operating the construction material and/or thick matter pump 1 for conveying construction material and/or thick matter DS. The construction material and/or thick matter pump 1 has the at least one conveying cylinder 2a, 2b and the at least one conveying piston 3a, 3b. The conveying cylinder 2a, 2b is configured to receive and discharge, in particular receives and discharges, construction material and/or thick matter DS. The conveying piston 3a, 3b is arranged movably in the conveying cylinder 2a, 2b in order to take in construction material and/or thick matter DS into the conveying cylinder 2a, 2b and in order to displace taken-in construction material and/or thick matter DS out of the conveying cylinder 2a, 2b. The method has the steps: Conveying construction material and/or thick matter DS by movement of the conveying piston 3a, 3b in order to take in and displace construction material and/or thick matter. Detecting the at least one position variable PGa, PGb during the movement, in particular by means of the at least one travel sensor device 4a, 4b. The position variable PGa, PGb characterizes the position POa, POb of the conveying piston 3a, 3b along its stroke HU in the conveying cylinder 2a, 2b. Detecting the at least one conveying variable FG′, FG″ during the movement, in particular by means of the at least one conveying sensor device 5′, 5″. The conveying variable FG′, FG″ is distinct from the position variable PGa, PGb. Furthermore, the conveying variable FG′, FG″ characterizes the conveying of construction material and/or thick matter DS by means of the construction material and/or thick matter pump 1. Determining the profile PR of the subsequent movement of the conveying piston 3a, 3b by linking the detected position variable PGa, PGb and the detected conveying variable FG′, FG″ with one another, in particular by means of the determining device 6. At least controlling the subsequent movement in accordance with the determined profile PR, in particular by means of the control device 7.

[0057] In the exemplary embodiment shown, the construction material and/or thick matter pump 1 has at least one drive cylinder 10a, 10b, at least one drive piston 11a, 11b and at least one piston rod 12a, 12b. The drive cylinder 10a, 10b is configured to receive, in particular receives, hydraulic liquid HF. The drive piston 11a, 11b is arranged movably in the drive cylinder 10a, 10b. The piston rod 12a, 12b is fastened to the drive piston 11a, 11b for movement coupling with the conveying piston 3a, 3b.

[0058] Furthermore, in the exemplary embodiment shown, the position variable PGa, PGb is a position of the drive piston 11a, 11b. In alternative exemplary embodiments, the position variable may be a, in particular the, position of the conveying piston or of the piston rod.

[0059] Furthermore, in the exemplary embodiment shown, the construction material and/or thick matter pump 1 has at least one drive motor device 13 and at least one drive pump device 14 for moving the conveying piston 3a, 3b, in particular move.

[0060] In detail, the drive motor device 13 is configured to drive or move, in particular drives or moves, the drive pump device 14. Furthermore, the drive pump device 14 is configured to pump or move, in particular pumps or moves, hydraulic liquid HF with a pressure, in particular a drive pressure, p, and is thus configured to move, in particular moves, the drive piston 11a, 11b, in particular in the drive cylinder 10a, 10b, and is thus configured to move, in particular moves, the piston rod 12a, 12b, and is thus configured to move, in particular moves, the conveying piston 3a, 3b.

[0061] Furthermore, the control device 7 is configured to control, in particular controls, the drive motor device 13 and the drive pump device 14 in order to control the subsequent movement in accordance with the determined profile, as shown in FIG. 3.

[0062] In the exemplary embodiment shown, the construction material and/or thick matter pump 1 has, in particular exactly, two conveying cylinders 2a, 2b, in particular exactly, two conveying pistons 3a, 3b and, in particular exactly, two travel sensor devices 4a, 4b, and in particular, in particular exactly, two drive cylinders 10a, 10b, in particular exactly, two drive pistons 11a, 11b and, in particular exactly, two piston rods 12a, 12b. In alternative exemplary embodiments, the construction material and/or thick matter pump may have only a single conveying cylinder, only a single conveying piston and only a single travel sensor device, and in particular only a single drive cylinder, only a single drive piston and only a single piston rod, or at least three conveying cylinders, at least three conveying pistons and at least three travel sensor devices, and in particular at least three drive cylinders, at least three drive pistons and at least three piston rods.

[0063] Furthermore, in the exemplary embodiment shown, the construction material and/or thick matter pump 1 has an oscillation line 15 for hydraulic liquid HF. The drive pump device 14 and the drive cylinders 10a, 10b form, via the oscillation line 15, a drive circuit for hydraulic liquid HF. In other words: the drive cylinders 10a, 10b are connected by means of the oscillation line 15 for a flow of hydraulic liquid HF, in particular between the drive cylinders 10a, 10b. By means of the oscillation line 15, the drive pistons 11a, 11b and thus the piston rods 12a, 12b and thus the conveying pistons 3a, 3b are coupled to one another at least temporarily, in particular continuously over time, in particular in antiphase, in particular in 180-degree antiphase, or for opposite movement.

[0064] In FIG. 1, the drive piston 11a moves, and the piston rod 12a thus moves, and the conveying piston 3a thus moves, to the right as indicated by an arrow. Hydraulic liquid HF flows from the drive cylinder 10a through the oscillation line 15 to the drive cylinder 10b, as shown by an arrow. The drive piston 11b thus moves, and the piston rod 12b thus moves, and the conveying piston 3b thus moves, to the left as indicated by an arrow. When the conveying pistons 3a, 3b, and in particular the drive pistons 11a, 11b, have reached their in particular respective stroke end positions POAE, POVE, the movement directions are interchanged. The drive piston 11a thus moves, and the piston rod 12a thus moves, and the conveying piston 3a thus moves, to the left, and the drive piston 11b moves, and the piston rod 12b thus moves, and the conveying piston 3b thus moves, to the right.

[0065] In particular, the construction material and/or thick matter pump a have an infeed point and/or an outfeed point for the infeed and/or outfeed of hydraulic liquid into the oscillation line. This can allow the drive piston and thus the piston rods and thus the conveying pistons to be temporarily not coupled to one another, or to be temporarily decoupled from one another, in particular for independent movement.

[0066] The construction material and/or thick matter pump 1 furthermore has an adjustable line switch 9.

[0067] In the exemplary embodiment shown, the construction material and/or thick matter pump 1 has a conveying line 8′ and a construction material and/or thick matter supply 20. The line switch 9 is configured to connect, in particular connects, the conveying cylinder 2a, 2b in particular either to the conveying line 8′, in one position, or to the construction material and/or thick matter supply 20, in another position, for a flow of construction material and/or thick matter DS.

[0068] In FIG. 1, the line switch 9 connects the conveying cylinder 2a to the conveying line 8′ and connects the conveying cylinder 2b to the construction material and/or thick matter supply 20.

[0069] Furthermore, the conveying piston 3b takes construction material and/or thick matter DS into the conveying cylinder 2b, in particular from the in particular connected construction material and/or thick matter supply 20. The conveying piston 3a, in particular at the same time, displaces taken-in construction material and/or thick matter DS out of the conveying cylinder 2a, in particular into the in particular connected conveying line 8′.

[0070] When the conveying pistons 3a, 3b have reached their in particular respective stroke end positions POAE, POVE, the line switch 9 is adjusted, in particular by means of the control device 7. The line switch 9 thus connects the conveying cylinder 2b to the conveying line 8′ and connects the conveying cylinder 2a to the construction material and/or thick matter supply 20. The conveying piston 3a thus takes construction material and/or thick matter DS into the conveying cylinder 2a, in particular from the in particular connected construction material and/or thick matter supply 20. The conveying piston 3b, in particular at the same time, displaces taken-in construction material and/or thick matter DS out of the conveying cylinder 2b, in particular into the in particular connected conveying line 8′.

[0071] Furthermore, the exemplary embodiment shown, the construction material and/or thick matter pump 1 is configured as a mobile construction material and/or thick matter pump, in particular as a truck-mounted construction material and/or thick matter pump, as shown in FIG. 2.

[0072] Furthermore, the conveying variable FG′ characterizes an introduction of energy from the conveying piston 3a, 3b into construction material and/or thick matter DS.

[0073] In detail, the conveying variable FG′ characterizes the pressure, in particular the drive pressure, p acting on construction material and/or thick matter DS in the conveying cylinder 2a, 2b, as shown in FIG. 4.

[0074] In the exemplary embodiment shown, the conveying sensor device 5′ has a pressure sensor device.

[0075] Additionally, the conveying variable FG' characterizes an excitation AN of at least one part 8 of the construction material and/or thick matter pump 1 caused by the introduction of energy from the conveying piston 3a, 3b into construction material and/or thick matter DS, as shown in FIG. 2.

[0076] In the exemplary embodiment shown, the conveying sensor device 5′ has an excitation sensor device, in particular an acceleration sensor device and/or a rate of rotation sensor device.

[0077] Furthermore, in the exemplary embodiment shown, the, in particular one, part 8 is the conveying line 8′, in particular on the truck, and the, in particular other, part 8 is a conveyor boom 8″, in particular with the excitation sensor device of the conveying sensor device 5′ at a tip of the conveyor boom 8″.

[0078] The method furthermore comprises: Determining a displacement start position POVA, at which the conveying piston 3a, 3b starts to displace taken-in construction material and/or thick matter DS out of the conveying cylinder 2a, 2b, by linking the detected position variable PGa, PGb during the movement for the displacement and the detected conveying variable FG′ that characterizes the introduction of energy from the conveying piston 3a, 3b into construction material and/or thick matter DS during the movement for the displacement with one another, as shown in FIG. 4, in particular by means of the determining device 6. Determining the profile PR on the basis of the determined displacement start position POVA.

[0079] In the exemplary embodiment shown, the displacement start position POVA is determined by linking the detected position variable PGa, PGb during the displacement and the detected conveying variable FG′ during the displacement with one another. In alternative exemplary embodiments, the displacement start position may be determined by linking the detected position variable during the movement to the determining displacement start position and the detected conveying variable during the movement to the determining displacement start position with one another.

[0080] Furthermore, in the exemplary embodiment shown, the displacement start position POVA is determined as that position POa, POb of the conveying piston 3a, 3b at which the conveying variable FG′, in particular the pressure p, reaches or overshoots a limit value FG′ limit, in particular plimit.

[0081] In FIG. 4, the conveying piston 3a moves, in particular from an intake or stroke end position POAE, to the right, as indicated by an arrow. The conveying piston 3a initially moves through a vacuum, or displaces construction material and/or thick matter DS that has not yet been taken in. The pressure p is thus low. As soon as the conveying piston 3a reaches a tip of conveying material and/or thick matter DS, the conveying piston 3a starts to displace or compress construction material and/or thick matter DS into a cylindrical shape but not yet displace said construction material and/or thick matter out of the conveying cylinder 2a. The pressure p thus increases. As soon as the conveying piston 3a has displaced or compressed construction material and/or thick matter DS into the cylindrical shape, the conveying piston 3a starts to displace construction material and/or thick matter DS out of the conveying cylinder 2a, in particular into the conveying line 8′. The pressure p thus reaches or overshoots the limit value plimit. The displacement start position POVA is thus determined.

[0082] In detail, the method comprises: Determining a degree of filling FD of the conveying cylinder 2a, 2b with construction material and/or thick matter DS on the basis of the determined displacement start position POVA, in particular by means of the determining device 6, as shown in FIG. 3. Determining the profile PR of a subsequent movement for the intake, in particular of a subsequent intake, on the basis of the determined degree of filling FD, as shown in FIG. 6. Controlling the subsequent movement for the intake, in particular of the subsequent intake, in accordance with the determined profile PR.

[0083] The method furthermore comprises: Ascertaining a duration ZD for a preceding movement for the intake, in particular of a preceding intake, causing the determined displacement start position POVA and/or the determined degree of filling FD, as shown in FIG. 5, in particular by means of the determining device 6. Determining a conveying rate FM by linking the determined displacement start position POVA and/or the determined degree of filling FD and the ascertained duration ZD with one another, in particular by means of the determining device 6, as shown in FIG. 3. Determining the profile PR of the subsequent movement for the intake, in particular of the subsequent intake, on the basis of the determined conveying rate FM, as shown in FIG. 6.

[0084] The method furthermore comprises: Decreasing a speed v and/or increasing a standstill duration SZD of the profile PR from a preceding intake, as shown in FIG. 5, to a subsequent intake, as shown in FIG. 6, in particular by means of the determining device 6, until the displacement start position POVA no longer approaches the intake or stroke end position POAE and/or the degree of filling FD and/or the conveying rate FM no longer increase(s). Additionally or alternatively increasing a speed v and/or decreasing a standstill duration SZD of the profile PR from a preceding intake, as shown in FIG. 5, to a subsequent intake, as shown in FIG. 6, in particular by means of the determining device 6, until the displacement start position POVA moves away from the intake or stroke end position POAE and/or the degree of filling FD and/or the conveying rate FM decrease(s).

[0085] FIG. 5 shows a standard profile SPR, in particular a standard acceleration and deceleration ramp, of the in particular preceding movement of the conveying piston 3a, 3b for the intake, in particular of the preceding intake, of construction material and/or thick matter DS with a standard viscosity. However, if construction material and/or thick matter DS has not the standard viscosity but some other viscosity, then the standard profile SPR is non-optimal. In particular, the in particular determined displacement start position POVA is not as close as possible to the intake or stroke end position POAE, the in particular determined degree of filling FD is not at a maximum, and/or the in particular determined conveying rate FM is not at a maximum.

[0086] FIG. 6 shows the profile PR, determined in particular by adaptation, and in particular iteration, of the in particular subsequent movement of the conveying piston 3a, 3b for the intake, in particular of the subsequent intake, of construction material and/or thick matter DS. The profile PR has, in particular by contrast to the standard profile SPR, a high speed v at an intake or stroke start position and/or displacement or stroke end position POVE. This makes it possible to quickly generate a high initial intake vacuum. Furthermore, the profile PR has, in particular by contrast to the standard profile SPR, a high speed v in a middle between the displacement or stroke end position POVE and the intake or stroke end position POAE, or of the stroke HU. This makes the in particular determined short duration ZD possible. Furthermore, the profile PR has, in particular by contrast to the standard profile SPR, a low speed v and a long standstill duration SZD at the intake or stroke end position POAE. This allows a pronounced overtravel effect. This thus makes it possible to achieve a minimum vacuum. This thus advantageously makes it possible to achieve the in particular determined displacement start position POVA as close as possible to the intake or stroke end position POAE, the in particular determined maximum degree of filling FD at a maximum, and/or the in particular determined maximum conveying rate FM.

[0087] The method furthermore comprises: Determining the profile PR of a subsequent movement, in particular from the intake or stroke end position POAE, to a, in particular new or the, displacement start position POVA on the basis of the determined displacement start position POVA, as shown in FIG. 4. Controlling the subsequent movement to the displacement start position POAE in accordance with the determined profile PR.

[0088] In detail, the method comprises: Determining the profile PR such that the conveying piston 3a, 3b accelerates, in particular from the intake or stroke end position POAE, and subsequently decelerates before the deceleration start position POVA.

[0089] In other words: the profile PR has an increase of the speed v at the intake or stroke end position POAE and subsequently a decrease of the speed v before the displacement start position POVA.

[0090] This makes it possible for the displacement start position POVA to be reached in a minimum duration, without the conveying piston 3a, 3b moving against the construction material and/or thick matter DS at too high a speed.

[0091] The method furthermore comprises: ascertaining a duration ZD for the preceding movement for the intake and/or for the determined subsequent movement for the intake and/or for the preceding movement to the displacement start position POVA and/or for the determined subsequent movement to the displacement start position POVA, in particular by means of the determining device 6, as shown in FIG. 3. Determining a remaining duration RZD for a subsequent movement for the displacement, in particular of a subsequent displacement, and/or to the displacement or stroke end position POVE, by linking the ascertained duration ZD and a specified cycle and/or stroke duration HZD and/or a specified conveying rate FM with one another, in particular by means of the determining device 6, as shown in FIG. 3. Determining the profile PR of the subsequent movement for the displacement, in particular of the subsequent displacement, in particular to the displacement or stroke end position POVE, on the basis of the determined remaining duration RZD. Controlling the subsequent movement for the displacement, in particular controlling the subsequent displacement, in accordance with the determined profile PR.

[0092] The method furthermore comprises: Determining the profile PR of the subsequent movement for the displacement, in particular of the subsequent displacement, in particular to the displacement or stroke end position POVE, by linking the detected position variable PGa, PGb during the movement for the displacement, in particular during the displacement, and the detected conveying variable FG′ which characterizes the introduction of energy from the conveying piston 3a, 3b into construction material and/or thick matter DS, which in the exemplary embodiment shown characterizes an excitation AN of at least one part 8 of the construction material and/or thick matter pump 1 caused by the introduction of energy from the conveying piston 3a, 3b into construction material and/or thick matter DS, during the movement for the displacement, in particular during displacement, with one another such that an excitation AN of at least the one part 8 of the construction material and/or thick matter pump 1 caused by the introduction of energy from the conveying piston 3a, 3b into construction material and/or thick matter DS is reduced or prevented. Controlling the subsequent movement for the displacement, in particular controlling the subsequent displacement, in accordance with the determined profile PR.

[0093] FIG. 4 shows the profile PR determined in particular by adaptation, and in particular iteration, of the in particular subsequent movement of the conveying piston 3a, 3b for the displacement, in particular of the subsequent displacement, of construction material and/or thick matter DS. The profile PR has an increase of the speed v after the displacement start position POVA and subsequently a decrease of the speed v before the displacement or stroke end position POVE. In other words, the method comprises: Determining the profile PR such that the conveying piston 3a, 3b decelerates from the displacement start position POVA and subsequently before the displacement or stroke end position POVE. This makes it possible to reduce or prevent the remaining duration ZD and thus the cycle and/or stroke duration HZD and/or the conveying rate FM and/or an excitation AN of at least the one part 8.

[0094] Furthermore, the conveying variable FG″ characterizes a position ST of the line switch 9, as shown in FIGS. 2, 4 and 6.

[0095] In the exemplary embodiment shown, the conveying sensor device 5″ has a position sensor device.

[0096] Furthermore, in the exemplary embodiment shown, the construction material and/or thick matter pump 1 has an actuating system 19 for adjusting the line switch 9.

[0097] Furthermore, in the exemplary embodiment shown, the conveying variable FG″ is a position of the actuating system 19. In alternative exemplary embodiments, the conveying variable may be the position of the line switch.

[0098] Furthermore, the control device 7 is configured to control, in particular controls, the actuating system 19, as shown in FIG. 3.

[0099] In detail, the method comprises: Determining the profile PR of the subsequent movement for the displacement to the displacement or stroke end position POVE and/or for the intake from the displacement or stroke end position POVE and/or for the intake to the intake or stroke end position POAE and/or for the displacement from the intake or stroke end position POAE by linking the detected position variable PGa, PGb and the detected conveying variable FG″ that characterizes the position ST of the line switch 9 with one another such that the subsequent movement of the conveying piston 3a, 3b and the in particular subsequent adjustment of the line switch 9 are or have been synchronized, as shown in FIGS. 4 and 6. Controlling the subsequent movement to the displacement or stroke end position POVE and/or from the displacement or stroke end position POVE and/or to the intake or stroke end position POAE and/or from the intake or stroke end position POAE in accordance with the determined profile PR.

[0100] FIGS. 4 and 6 show the profile PR, determined in particular by adaptation, and in particular iteration, of the in particular subsequent movement of the conveying piston 3a, 3b to the displacement or stroke end position POVE and/or from the displacement or stroke end position POVE and/or to the intake or stroke end position POAE and/or from the intake or stroke end position POAE. The profile PR is determined such that the conveying piston 3a, 3b is, or is at a standstill, in the displacement or stroke end position POVE and/or the intake or stroke end position exactly when the adjustment of the line switch 9 starts, and/or accelerates from said position exactly when the adjustment of the line switch 9 has ended.

[0101] In particular, the adjustment of the line switch 9 is somewhat inert. The deceleration and/or the acceleration of the conveying piston 3a, 3b is also somewhat inert. The adjustment of the line switch 9 is thus initiated, in particular by the control device 7, before the conveying piston 3a, 3b is, or is at a standstill, in the displacement or stroke end position POVE and/or the intake or stroke end position. Furthermore, the acceleration of the conveying piston 3a, 3b is thus initiated, in particular by the control device 7, before the line switch 9 has been adjusted.

[0102] In particular at a time after the initiation of the adjustment of the line switch 9, through the detection of the position variable PGa, PGb and the conveying variable FG″ that characterizes the position ST of the line switch 9, and the linking of these with one another, the profile PR is determined such that, if construction material and/or thick matter DS has not the standard viscosity but a different viscosity, the conveying piston 3a, 3b decelerates to a lesser or greater extent such that the conveying piston 3a, 3b is, or is at a standstill, in the displacement or stroke end position POVE and/or the intake or stroke end position exactly when the adjustment of the line switch 9 starts.

[0103] In particular at a time after the initiation of the acceleration of the conveying piston 3a, 3b, detection of the position variable PGa, PGb and the conveying variable FG″ that characterizes the position ST of the line switch 9, and the linking of these with one another, the profile PR is determined such that, if construction material and/or thick matter DS has not the standard viscosity but a different viscosity, the conveying piston 3a, 3b accelerates to a lesser or greater extent such that the conveying piston 3a, 3b accelerates from the displacement or stroke end position POVE and/or the intake or stroke end position exactly when the adjustment of the line switch 9 has ended.

[0104] This allows the construction material and/or thick matter pump 1 to be operated with low wear and/or without problems, and/or for construction material and/or thick matter DS to be conveyed by means of the construction material and/or thick matter pump 1 with the least possible interruption.

[0105] The method furthermore has the step: Selecting an optimization target OZ set of several selectable optimization targets OZ. The method comprises: determining the profile PR in accordance with the selected optimization target OZ, in particular such that the selected optimization target OZ is achieved.

[0106] In the exemplary embodiment shown, the construction material and/or thick matter pump 1 has a user-actuatable operator control element 30 for the selection of the optimization target OZ, as shown in FIG. 1.

[0107] Furthermore, the at least one travel sensor device 4a, 4b, the at least one conveying sensor device 5′, 5″, the determining device 6 and the control device 7, and in particular the drive motor device 13, the drive pump device 14, the actuating system 19 and the operator control element 30 in particular each have an in particular electrical signal connection, as shown in FIG. 1 by dotted lines.

[0108] As is made clear by the exemplary embodiments presented and discussed above, the invention provides an advantageous method for operating a construction material and/or thick matter pump for conveying construction material and/or thick matter, and an advantageous construction material and/or thick matter pump for conveying construction material and/or thick matter, which each have improved characteristics.