EP3861170B1 - Procédé de commande d'une machine de compactage de sol et machine de compactage de sol - Google Patents

Procédé de commande d'une machine de compactage de sol et machine de compactage de sol Download PDF

Info

Publication number
EP3861170B1
EP3861170B1 EP19786719.5A EP19786719A EP3861170B1 EP 3861170 B1 EP3861170 B1 EP 3861170B1 EP 19786719 A EP19786719 A EP 19786719A EP 3861170 B1 EP3861170 B1 EP 3861170B1
Authority
EP
European Patent Office
Prior art keywords
ipf
vibration
compaction
machine
vibration amplitude
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19786719.5A
Other languages
German (de)
English (en)
Other versions
EP3861170A1 (fr
Inventor
Manfred Darscheid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bomag GmbH and Co OHG
Original Assignee
Bomag GmbH and Co OHG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bomag GmbH and Co OHG filed Critical Bomag GmbH and Co OHG
Publication of EP3861170A1 publication Critical patent/EP3861170A1/fr
Application granted granted Critical
Publication of EP3861170B1 publication Critical patent/EP3861170B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
    • E01C19/282—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows self-propelled, e.g. with an own traction-unit
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
    • E01C19/288—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows adapted for monitoring characteristics of the material being compacted, e.g. indicating resonant frequency, measuring degree of compaction, by measuring values, detectable on the roller; using detected values to control operation of the roller, e.g. automatic adjustment of vibration responsive to such measurements

Definitions

  • the invention relates to a method for controlling a soil compaction machine, in particular for avoiding compaction errors.
  • the invention relates to a soil compacting machine with a control unit that is designed to carry out the method and/or carries it out.
  • Generic soil compaction machines are designed, for example, as road rollers, in particular tandem rollers or compactors. They are used in road and path construction to compact the subsoil, for example hot layers of asphalt or soil.
  • the soil compaction machines typically have compaction drums, which are designed, for example, as roller drums with a hollow-cylindrical base body.
  • the compression drums can either have smooth, round surfaces, or they can also be polygonal or designed as crusher drums with projections projecting beyond the circumference of the hollow-cylindrical base body.
  • One or more compaction drums can be provided on a soil compaction machine. It is also possible that a compaction drum is used in combination with wheels or other chassis.
  • the generic soil compacting machines are in particular designed to be self-propelled and include a drive motor, which is typically a diesel internal combustion engine. This drives, among other things, the compaction drum, so that during operation of the soil compaction machine, the soil compaction machine is moved over a soil to be compacted at a driving speed.
  • a drive motor typically a diesel internal combustion engine. This drives, among other things, the compaction drum, so that during operation of the soil compaction machine, the soil compaction machine is moved over a soil to be compacted at a driving speed.
  • a vibration with a vibration frequency is typically excited in at least one compaction drum by means of an excitation device.
  • the exciter device is also referred to as a vibration exciter and comprises, for example, one or more circular exciters and can be designed in particular as a directional vibrator.
  • a generic excitation device is, for example, from EP 2 172 279 A1 the applicant, from which WO 97/15726 A1 or from the WO 2018/174853 A1 known.
  • soil compaction machines which are designed, for example, as hydraulic or electric hybrids, typically have a drive motor designed for lower power, which is supported during work when power peaks occur with energy from an intermediate storage device, for example a hydraulic pressure storage device or an electrical storage device.
  • an intermediate storage device for example a hydraulic pressure storage device or an electrical storage device.
  • the driving speed and/or the vibration frequency of the soil compaction machine typically has to be reduced. In this way, in hybrid systems the above-described problem arises that the vehicle is driving too fast or too slow for a given vibration frequency or that the vibration frequency is too high or too low for a given driving speed.
  • the solution is achieved with a method mentioned at the outset by determining and monitoring the number of vibration impacts per route covered from the driving speed and the vibration frequency, comparing the determined number of vibration impacts per route covered with specified limit values and reducing the vertical vibration amplitude of the compaction drum if the or falling below at least one of the limit values.
  • a period of those oscillations into which the compaction drum is set by the excitation device is referred to as a vibration impact.
  • a vibratory impact therefore includes, for example, in the case of a vibration in the vertical direction, the compaction drum falling downwards from a neutral position, then lifting the compaction drum back to the neutral position and upwards beyond this, with a subsequent lowering of the compaction drum again to the neutral position .
  • the number of such vibration impacts per distance traveled is then specified, for example, as vibration impacts per meter or per foot and referred to as the IPF value (from English: " impacts per foot ").
  • the designation IPF value is used here independently of the unit of length used, so that the unit used in each case must be specified for specific values.
  • a value that specifies the vibration impacts per meter is therefore also referred to as the IPF value.
  • a basic idea of the invention is therefore based on determining and monitoring the IPF value.
  • the IPF value can be used as a control variable in the process.
  • the number of vibration impacts per distance traveled is calculated from the known parameters of the driving speed and the vibration frequency.
  • the IPF value is equal to dividing the vibration frequency by the vehicle speed. Since the driving speed and the vibration frequency are also typically measured continuously, the IPF value can also be determined and monitored continuously. Knowing the IPF value makes it possible to compare the current value with a target value, a target value range or limit values.
  • limit values can be specified, such as a maximum IPF value and a minimum IPF value, between which the IPF value currently measured and therefore present on the soil compaction machine should ideally be during working operation.
  • the number of vibration impacts per traveled distance is adjusted in such a way that the vibration impacts applied to the soil to be compacted are both far enough apart not to carry out excessive compaction at one point and close enough to one another so that the soil is compacted uniformly , without creating waves.
  • the vertical vibration amplitude of the compaction drum is reduced in the method according to the invention.
  • the vertical vibration amplitude corresponds to that vibration component of the compaction drum that vibrates or is aligned in the vertical direction.
  • "vertical" means perpendicular to a substantially level ground surface. In particular, this vertical vibration or vertical vibration amplitude brings a lot of compaction power into the soil, so that there is a risk of compaction errors if the IPF value is outside the optimal range.
  • the vertical vibration amplitude therefore corresponds to the current total amplitude.
  • the direction of the vibration can be freely adjusted, so that the vibration can be adjusted, for example, between full vertical alignment and full horizontal alignment.
  • An oscillation of a directional oscillator can always be viewed as a superimposition of a horizontal and a vertical oscillation. With such a directional oscillator the vertical vibration amplitude always corresponds to that part of the vibration that is aligned in the vertical direction. By reducing the vertical vibration amplitude, it is achieved according to the invention that a lower compaction power is applied to the ground.
  • the method according to the invention is carried out, for example, by a control unit of the soil compacting machine.
  • the control unit can either be designed as a separate control unit or, for example, be integrated into an on-board computer of the soil compacting machine.
  • the method is carried out automatically by the control unit, without an operator having to enter further control commands for this purpose.
  • the control unit can be designed, for example, to switch the method according to the invention on and off.
  • Either the control unit itself or the on-board computer of the soil compaction machine therefore has a control element via which the method can be switched on or off.
  • This control element can be either a switch or just part of a digital or virtual user interface.
  • the control unit can also comprise a display device which, for example, shows an operator the current IPF value and/or steps currently taken by the control unit as part of the method. This display device can also be implemented, for example, via a screen of the on-board computer.
  • the vertical vibration amplitude can be reduced with any exciter device capable of doing this.
  • excitation devices can be used that have different discrete stages of different vibration frequencies. These levels can then be used if the corresponding limit values are not reached or exceeded.
  • an excitation device such as is used by the applicant's “BOMAG Asphalt Manager”.
  • the present invention can be used particularly flexibly with such an excitation device.
  • an optimal range between a maximum IPF value and a minimum IPF value can be set as limit values for the IPF value here, in which the method does not yet reduce the vertical Vibration amplitude performs.
  • the vertical vibration amplitude does not have to be abruptly reduced sharply, but the vertical vibration amplitude can be reduced, for example, with the amount by which the vibration amplitude is reduced being proportional to the exceeding or falling below of the limit value is divided by the current, measured IPF value. In this way, the process adapts the compaction performance to the respective operating situation of the soil compaction machine in a particularly flexible manner by vibrating the compaction drum.
  • optimal compaction which does not require reducing the vertical vibration amplitude, is for example in a range of 30-55 vibration impacts per meter, preferably 35-50 vibration impacts per meter and most preferably 40-45 vibration impacts per meter can be done. Another preferred range is also 30-42 beats per meter. These values are therefore preferably used, in particular also in pairs, as stated, for the minimum and the maximum limit value of the IPF value. Preferred values for the minimum limit are therefore 25, 30, 35 or 40 vibrations per meter and for the maximum limit 55, 50, 45 or 40 vibrations per meter. According to the invention, if the maximum limit value is exceeded or if the minimum limit value is not reached, the vertical vibration amplitude is reduced. In the present application, the maximum limit value is referred to as IPF max and the minimum limit value as IPF min .
  • the vertical vibration amplitude can be reduced until the vertical vibration amplitude has completely disappeared.
  • the vertical vibration amplitude is reduced to zero when the number of vibration impacts per route traveled exceeds or falls below a critical limit value.
  • the critical limit value is also referred to as IPF end . Since the invention provides that the vertical vibration amplitude is reduced both when the current IPF value is too low and when the current IPF value is too high, there is both a low critical limit value below which the vertical vibration amplitude is reduced to zero also has a high critical limit above which the vertical vibration amplitude is reduced to zero.
  • the low critical limit value is, for example, 30, preferably 25, particularly preferably 20 vibration impacts per meter.
  • the high critical limit value is, for example, 55, preferably 60, particularly preferably 65 vibration impacts per meter.
  • a particularly preferred embodiment of the present invention provides that reducing the vertical vibration amplitude between the maximum limit IPF max and the high critical limit and/or between the minimum limit IPF min and the low critical limit occurs linearly between the maximum possible vertical vibration amplitude that can be set on the exciter device and a vertical vibration amplitude of zero.
  • Another advantage of reducing the vertical vibration amplitude to zero is that the invention then implements an automatic switch-off in which, for example, when the machine stops and comes to a standstill, the vertical vibration amplitude is automatically adjusted to zero, i.e. completely switched off.
  • the method according to the invention can simplify the control of the soil compacting machine considerably. It is therefore preferred for the driving speed and/or the vibration frequency to be changed on the basis of an increased power requirement of the soil compacting machine. Especially with these changes, which are sometimes difficult for the operator to foresee, it is particularly practical if, in case of doubt, the method automatically reduces the vertical vibration amplitude without the operator having to do anything. In this way, compaction errors can be efficiently avoided.
  • the soil compaction machine is designed as a hybrid, in particular an electric or hydraulic hybrid, educated.
  • the soil compacting machine includes an intermediate store and, before the driving speed and/or the vibration frequency is changed, additional power is released by the intermediate store when the required power of the soil compacting machine is increased.
  • the temporary store can, for example, be an electrical store, such as a rechargeable battery, or a hydraulic store, for example a pressure store. Additional power is therefore released either by releasing additional electrical energy or, for example, by releasing pressurized hydraulic fluid held in the intermediate store. In this way, power peaks that typically occur in hybrid systems are to be bridged.
  • the energy stored in the intermediate storage is often not sufficient to completely bridge the power peak.
  • driving uphill lasts longer than can be maintained under the current operating parameters of the drive motor and the buffer.
  • the driving speed and/or the vibration frequency it is preferable in this case for the driving speed and/or the vibration frequency to be changed only after the energy stored in the buffer store has been completely consumed, if there is still an increased required power of the soil compaction machine.
  • the vertical vibration amplitude is only then reduced by the method, as a result of which it is possible to work longer with a high vertical vibration amplitude and thus a high compaction performance.
  • the method according to the invention is particularly efficient, particularly in conjunction with a hybrid system.
  • the charging state of the buffer store is also used to control the method.
  • the state of charge of the buffer store is thus detected by means of a suitable sensor. Based on the state of charge, a decision is then made, for example by the control unit, whether a power peak can be bridged by using the energy stored in the buffer store or whether the vertical vibration amplitude must be reduced immediately.
  • the transition from releasing additional power or energy from the buffer store to reducing the vertical vibration amplitude can be controlled by the control unit based on the measured state of charge of the buffer store. Irrespective of the charge status of the intermediate store, the necessary measures are always taken to avoid compaction errors.
  • the method can be used in such a way that only and exclusively a reduction in the vertical vibration amplitude is carried out.
  • the vertical vibration amplitude can only be increased by the operator himself, for example via a control command. This can serve as an additional safety measure, so that the compaction does not suddenly start again without the operator's will.
  • it is preferably provided as an alternative to this that the vertical vibration amplitude is increased if the at least one limit value is again exceeded or fallen below. For example, if the currently measured IPF value is again above the minimum critical limit value or below the maximum critical limit value, the vertical vibration amplitude can be increased again from zero.
  • the potential of the machine is best exploited when maximum compaction takes place in the optimum range between the maximum and minimum limit values.
  • the method according to the invention reduces the vertical vibration amplitude caused by the exciter device on the compaction drum. This reduction typically also causes the power consumption of the excitation device to drop. For example, if only horizontal vibrations are excited by a directional oscillator, then the power consumption of the excitation device can be reduced by half compared to the case where only vertical vibrations are excited. In this way, additional power is released in the drive train of the soil compaction machine, which can then be used for other purposes.
  • the power saved by reducing the vertical vibration amplitude is used to increase the driving speed and/or the vibration frequency. In this way, a slowing down of the soil compaction machine and/or a reduction in the vibration frequency can be at least partially counteracted. Overall, the speed of the soil compaction machine is reduced less as a result, which in turn makes working more efficient.
  • a particularly preferred embodiment provides that the power saved by reducing the vertical vibration amplitude is used to charge the buffer store.
  • the buffer store is correspondingly empty. If the vertical vibration amplitude then has to be reduced as a result of a change in the driving speed and/or the vibration frequency based on the current IPF value measured then, the released power can at least be used to charge the buffer store. In this way, a charged buffer store is available again at the next power peak, so that the efficiency of the hybrid system increases.
  • the excitation device in particular can be disruptive when the soil compaction machine is in operation. It is therefore preferred that the vibration frequency of the vibration of the at least one compaction drum is kept essentially constant. In particular, this is kept constant. In the present context, essentially means that there may be operational fluctuations, but no externally induced or controlled changes are made to the vibration frequency. In this way, the excitation device can always be driven in the same way and it does not have to be coupled when reversing, for example. Of course, this also means that when peak loads occur, the driving speed is reduced in order to bridge them. In the method according to the invention, therefore, preferably only the driving speed is changed and the vibration frequency is kept constant.
  • the vibration frequency and in particular the vibration frequency and the driving speed can also be changed.
  • the vibration frequency can also be reduced in order to bridge a power peak.
  • it must be ensured that the vibration frequency is not reduced to the resonance frequency of the drum, so that the machine is not damaged. Even when there is a change in the vibration frequency, it is therefore preferred that this is only changed in such a way that the excitation device is operated supercritically during working operation.
  • reducing the vibration frequency can also reduce wear. In this case, the damage to the work result that would otherwise be feared is also lower.
  • the control unit can regulate or control compliance with the optimum IPF value particularly flexibly.
  • the present invention also makes it possible to always operate the drive motor as close as possible to its optimum power point, since a possibility is specified of overcoming load peaks without changing the power output by the drive motor. It is therefore preferred that a power output or the speed of a drive motor of the soil compacting machine is kept essentially constant. In particular, the power output or the speed is kept constant.
  • essentially means that operational fluctuations are possible, but, for example, no externally induced or controlled changes in the power output or the speed are made. Such optimal operation of the drive motor extends its service life and at the same time reduces fuel consumption.
  • the object mentioned at the outset is also achieved by a soil compacting machine with a control unit which is designed to carry out the method according to the invention and/or carries it out.
  • the method according to the invention is therefore used to control the ground milling machine, which is designed for this use and includes at least one control unit that is able to carry out the method. All the features, effects and advantages described above for the method also apply in a figurative sense to the soil compacting machine according to the invention. At the same time, all the features, effects and advantages described for the soil compacting machine also apply to the method according to the invention. Reference is therefore made to the respective other versions only to avoid repetition.
  • the soil compaction machine includes in particular a machine frame, a drive motor, at least one compaction drum, an exciter device for exciting a vibration on the compaction drum with a vibration frequency, and a frequency sensor for measuring the vibration frequency and a distance sensor for measuring the distance covered.
  • the frequency sensor and the distance traveled sensor are connected to the control unit and supply it, in particular continuously, with corresponding measured values of the vibration frequency and the distance traveled. These are used by the control unit when carrying out the method.
  • the soil compacting machine is very particularly preferably designed as a hybrid, in particular a hydraulic hybrid, with an intermediate store.
  • the present invention is particularly advantageous precisely in the case of such a hybrid system.
  • the Figures 1 and 2 show generic and inventive soil compaction machines 1.
  • the soil compaction machine 1 of figure 1 is as a tandem roller, the one of figure 2 designed as a roller train.
  • the soil compaction machines 1 comprise a driver's cab 2 and a machine frame 3, as well as a drive motor 4, which is typically a diesel internal combustion engine.
  • the drive motor 4 drives, among other things, a chassis which comprises at least one compaction drum 5 fastened to the machine frame 3 via a drum holder 6 . In the case of the tandem roller figure 1 this has a compression bandage 5 both at the front and at the rear.
  • the roller according to figure 2 has a front compaction drum 5 and has two wheels 7 on its rear chassis axle.
  • the soil compaction machine 1 During operation of the soil compaction machine 1, it is driven over the soil 8 to be compacted, for example in the forward direction a. Of course, however, it is also possible to compress against the forward direction a, ie backwards will.
  • an excitation device is arranged, which causes the respective compaction drum 5 to oscillate, in particular to vibrate. This increases compaction performance.
  • the soil compaction machines 1 In order to measure the respective vibration frequency of the compaction drum 5, the soil compaction machines 1 have frequency sensors 33, in particular one frequency sensor 33 per compaction drum 5. In addition, the soil compaction machines 1 are able to detect the distance they have covered. They have a distance sensor 34 for this purpose.
  • the soil compacting machines 1 include a control unit 15 which is connected to the frequency sensor 33 and the distance sensor 34 .
  • the control unit 15 is designed to carry out the method according to the invention or executes it. In particular, the method according to the invention is carried out individually for each compaction drum 5 or alternatively for all compaction drums 5 of a soil compaction machine 1 together.
  • FIG 3 shows schematically the drive of the soil compacting machine 1 and its interconnection with the control unit 15.
  • a drive pump 9 and a vibration pump 10 are arranged on the drive motor 4. Both are driven by the drive motor 4.
  • the drive pump 9 is connected to the drive motor 11 by a hydraulic line 19 , which drives at least one wheel 7 or at least one compaction drum 5 of the soil compaction machine 1 .
  • the vibration pump 10 is also connected via a hydraulic line 19 to a vibration motor 12, which supplies the excitation device 13 with energy via a mechanical coupling 20, so that the excitation device 13 causes the compaction drum 5 to vibrate during operation.
  • An amplitude control 14 is also provided on the excitation device 13 via a mechanical coupling 20, via which the vibration amplitude, in particular the vertical vibration amplitude of the compaction drum 5, which is caused by the excitation device 13, can be adjusted.
  • the soil compacting machine 1 is designed as a hybrid system.
  • a pump/motor unit 16 is also arranged on the drive motor 4, which is connected via hydraulic lines 19 to a charging/discharging valve 17 and via this to an intermediate store 18, for example a hydraulic pressure store. If excess power is available in the drive train of the soil compaction machine 1, the pump/motor unit 16 acts as a pump and loads the buffer store 18 via the charging/discharge valve 17.
  • the buffer store 18 can stored energy over that Charge / discharge valve 17 are released, so that the pump / motor unit 16 works as a motor and additional power, for example in the form of torque, initiates in the drive train. Power peaks can be bridged in this way as long as the energy stored in the buffer store 18 is sufficient.
  • figure 3 also shows the control unit 15 and its connection to the frequency sensor 33 and to the distance sensor 34.
  • the control unit 15 is also connected with control lines 21 to other components of the drive.
  • the control lines 21 are, for example, electrical lines via which both control commands and recorded measured values can be transported.
  • the control unit 15 is designed, for example, in particular to measure the vibration frequency of the excitation unit 13, for example via the frequency sensor 33, and the distance traveled, for example via the distance sensor 34.
  • the control unit 15 is designed to control the amplitude controller 14 in such a way that, according to the method, it reduces or increases the vertical vibration amplitude depending on the measured or calculated current IPF value.
  • figure 4 shows the system and its reaction over time with a gradual increase in driving speed v.
  • the abscissa of all given diagrams denoted the time t.
  • the diagrams are arranged in such a way that the individual marked points in time along the abscissa correspond in all diagrams. This also applies to the figures 5 and 6 .
  • the soil compaction machine 1 is in normal working mode and travels at a constant driving speed v over the soil 8 to be compacted remains essentially constant over time.
  • the power peak is therefore compensated for by adapting the driving speed v, as will be described below.
  • the vibration frequency f could also be changed, either alone or together with the driving speed v.
  • the operator of the soil compacting machine 1 accelerates.
  • the driving speed v increases until a constant, increased driving speed v has been reached again.
  • the vibration frequency f remains constant and the driving speed v increases, the number of vibration impacts per distance traveled, i.e. the IPF value, decreases (see diagram below).
  • the IPF value is still above a minimum limit value IPF min , so that, as shown in the upper diagram, the vertical vibration amplitude A also remains constant, for example at its maximum at the Excitation device 13 adjustable value.
  • the operator accelerates the soil compacting machine 1 further.
  • the driving speed v increases in such a way that, due to the constant vibration frequency f, the IPF value drops below the specified minimum limit value IPF min .
  • the control unit which calculates the IPF value from the driving speed v and the vibration frequency f, notices that the IPF value has fallen below the minimum limit value IPF min and therefore initiates a reduction in the vertical vibration amplitude A at time t 3 , as in the top one diagram is shown.
  • the vertical vibration amplitude A is therefore changed (in all the exemplary embodiments shown in the figures) as a function of the IPF value by the control unit.
  • the change in the vertical vibration amplitude A is therefore slightly offset in time from the change in the IPF value and takes place later, since the vertical vibration amplitude A is regulated or controlled as a function of the IPF value.
  • the soil compacting machine 1 is further accelerated by the operator up to time t 4 , until a constant driving speed v is reached again.
  • the reduction of the vertical vibration amplitude A by the control unit 15 is therefore also continued up to the point in time t 4 , at which point the IPF value no longer changes either.
  • the soil sealing machine 1 or the excitation device 13 is therefore operated with a reduced vertical vibration amplitude A between the times t 4 and t 5 . This remains essentially constant between these two points in time.
  • the soil compacting machine 1 is accelerated again. This time the acceleration goes so far that at time t 6 the IPF value falls below the critical limit value IPF end . Up to this point, the control unit 15 has continuously reduced the vertical vibration amplitude A in proportion to the decrease in the IPF value.
  • the method according to the invention is now either designed in such a way that the vertical vibration amplitude of A is just zero when the critical limit value IPF end is reached, or the method according to the invention is designed in such a way that the control unit 15 increases the vertical vibration amplitude A via the amplitude control for 10 reaches the critical limit IPF end to zero, no matter what the previous value of the vertical vibration amplitude A was.
  • the vertical vibration amplitude A reaches zero just when the IPF value falls below the critical limit value, in this case the low critical limit value IPF end . Only at time t 7 is the driving speed v of the soil compacting machine 1 reduced again by the operator, so that the IPF value again rises above the critical limit value IPF end at time t 8 . From this point in time, the vertical vibration amplitude A is increased again, starting from zero in the exemplary embodiment shown. Between the times t 6 and t 8 the excitation device 13 is therefore operated with a constant vibration frequency f but with a vertical vibration amplitude A equal to zero. For example, the excitation device 13 generates during this time only horizontal vibrations.
  • the increase in the vertical vibration amplitude A corresponds proportionally to the increase in the IPF value, until the time t 9 the soil compacting machine 1 was braked in such a way that the IPF value rises above the minimum limit value IPF min again. From this point in time, the vertical vibration amplitude A is increased until it returns to its maximum value from the start of the sequence shown.
  • the soil compaction machine 1 is in the optimal operating state and applies the maximum compaction power to the soil 8 to be compacted.
  • figure 5 shows the flow of a similar situation as figure 4 , where in figure 5 the case of a gradual reduction in the driving speed v is shown.
  • a reduction in the driving ability v can occur, for example, in order to bridge power peaks of the soil compacting machine 1 that occur during working operation, for example when it has to drive up a slope.
  • the above statements apply to figure 4 also for them figure 5 , which is why only the differences are discussed.
  • the soil compaction machine 1 according to figure 5 braked.
  • the driving speed v remains so high that the IPF value increases, but remains below the maximum limit value IPF max .
  • the slowed-down soil compacting machine 1 is still in the optimum range, so that the vertical vibration amplitude A remains constant.
  • the maximum limit value IPF max of the IPF value is then only exceeded at time t 3 as a result of the further slowdown occurring at time t 2 , so that a reduction in the vertical vibration amplitude A is initiated by the control unit 15 here as well.
  • soil compaction machine 1 is operated with a constant, reduced vertical vibration amplitude A, since the currently calculated IPF value is between the maximum limit value IPF max and the critical limit value IPF end , in particular the high critical value limit, located.
  • the IPF value then finally rises above the critical limit value IPF end at time t 6 , as a result of which the vertical vibration amplitude A is set to zero.
  • the vertical vibration amplitude A is again increased in proportion to the increase in the IPF value.
  • the control unit 15 sets the maximum vertical vibration amplitude A again. The compaction in the optimal operating state of the soil compaction machine 1 can then be continued.
  • FIG 6 the particularly advantageous integration of the method according to the invention in a hybrid system is illustrated.
  • the top four diagrams correspond to those of figures 4 and 5 , and show the vertical vibration amplitude A, vibration frequency f, running speed v, and IPF value.
  • the sequence shown corresponds to the case with a reduction in driving speed v according to figure 5 , although the procedure is simplified.
  • the soil compaction machine 1 is in normal working mode, it drives at a constant driving speed v and compacts the soil 8 with a constant vibration frequency f.
  • the drive motor 4 is operated with a constant power output E or with a constant speed.
  • the power required for the entire operation of the soil compacting machine 1, ie the required power L, is below the power output E achieved by the drive motor 4.
  • the required power L of the soil compacting machine 1 increases. The reason for this can be, for example, that the soil compacting machine 1 has to compact uphill. As long as the required power L remains below the power output E generated by the drive motor, nothing happens for the time being. At time t 2 , however, the required power L exceeds the power output E of the drive motor 4.
  • the hybrid system of the soil compacting machine 1 makes itself felt. Specifically, the buffer store 18 releases additional energy or power and feeds this into the drive train of the soil compacting machine 1 .
  • the power output H of the buffer 18 increases.
  • the increased power requirement of the soil compacting machine 1 can be covered by the additional power output H from the intermediate store 18 .
  • the soil compacting machine 1 can continue its work operation unimpaired.
  • the energy reserves of the buffer store 18 are approaching their end and the power output H from the buffer store 18 decreases.
  • the power required by the soil compaction machine 1 can no longer be covered by the combination of the drive motor E and the intermediate store 18 .
  • the required power has to be reduced elsewhere. According to the invention, this preferably takes place at the driving speed v, which is reduced from time t 3 in order to absorb the increased power requirement.
  • the IPF value also increases as the driving speed v decreases.
  • the IPF value at time t 4 exceeds the maximum limit value IPF max , so that from this point in time the control unit 15 reduces the vertical vibration amplitude A, which was kept constant up to time t 4 .
  • the driving speed v is reduced until the power available is sufficient for the operation of the soil compacting machine 1 .
  • the increase in the IPF value therefore also ends at time t 5 , so that the reduction in the vertical vibration amplitude A also stops at time t 5 .
  • the vertical vibration amplitude A can now remain constant.
  • the increased power requirement decreases again later, for example because the ground exposure machine 1 moves from an embankment onto a level area, so that at the time t 6 the required power L falls below the power E output by the drive motor 4 again.
  • the driving speed v can then be increased again, which leads to a drop in the IPF value and an associated increase in the vertical vibration amplitude A, as already described above.
  • figure 6 shows another advantage of the method.
  • the excitation device 13 consumes less power when the vertical vibration amplitude A is reduced.
  • the power that is available as a result can be used elsewhere on the soil compaction machine 1 .
  • the power that is released can be used to reduce the driving speed v of the soil compacting machine 1 less.
  • This is represented by the broken line in the diagram of the driving speed v.
  • the dashed curve shows the course of the driving speed v when the power released by reducing the vertical vibration amplitude A is used to maintain a higher driving speed v.
  • the solid line shows the case in which the additional power is not invested in the driving speed v.
  • the power released by reducing the vertical vibration amplitude A By using the power released by reducing the vertical vibration amplitude A, a higher driving speed v can be set, so that the compaction process becomes more efficient overall.
  • the dashed line illustrates a charging process of the intermediate store 18, since the dashed line runs under the zero line of the power output H, which runs parallel to the time axis.
  • the negative power output shown corresponds to one charging process.
  • the charging process of the intermediate store 18 takes place over the entire period in which the vertical vibration amplitude A is reduced, since less power is required from the excitation device 13 over this entire period and the excess power is therefore available for charging the intermediate store 18 .
  • the buffer 18 can be at least partially recharged directly after the energy stored in it has been completely consumed, so that when the next power peak, an at least partially charged buffer store 18 is already available again.
  • FIG 7 shows an exemplary flowchart of the method 22 according to the invention.
  • the method 22 comprises the excitation 23 of a vibration on a compaction drum 5 by the excitation device 13 and the moving 24 of the soil compaction machine 1 over the soil 8.
  • the soil compaction machine 1 is designed as a hybrid system, it can be used to bridge a power peak in step 22 power or energy from a buffer 18 are released.
  • the driving speed v and/or the vibration frequency f can change during working operation, for example if the energy in the intermediate store 18 is not sufficient to completely bridge the increased power requirement of the soil compaction machine 1 .
  • the current IPF value of the soil compacting machine 1, which is determined and monitored in step 25, also changes.
  • the determined IPF value is then compared in step 26 with predefined limit values IPF max , IPF min , IPF end . If the measured IPF value is in an optimal range between the minimum limit value IPF min and the maximum limit value IPF max , nothing happens and work continues undisturbed. If, on the other hand, the measured IPF value is below the minimum limit value IPF min or above the maximum limit value IPF max , the vertical vibration amplitude A is reduced 27 in the first case and the vertical vibration amplitude A is increased 29 in the second case vertical vibration amplitude A, the method 22 starts again from the beginning.
  • the power consumption of the excitation device 13 decreases and, due to the reduced power requirement, excess energy is available, which can be used in step 30, for example, to increase the driving speed v and/or the vibration frequency f increase or at least buffer their reduction.
  • the energy saved in step 31 it is also possible to use the energy saved in step 31 to charge the buffer store 18 .
  • the present invention makes it possible to efficiently prevent compaction errors from occurring during operation of the soil compacting machine 1 . At the same time, this requires almost no attention from the operator, which increases the ease of use of the soil compacting machine 1 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Claims (15)

  1. Procédé (22) de contrôle d'un engin (1) de compactage du sol, en particulier pour éviter des erreurs de compactage, comprenant les étapes consistant à:
    a) provoquer (23) une vibration avec une fréquence (f) de vibration dans au moins un cylindre (5) de compactage au moyen d'un dispositif d'excitation (13),
    b) faire avancer l'engin (1) de compactage du sol selon une vitesse de déplacement (v) sur un sol (8) à compacter,
    c) modifier (28) la vitesse de déplacement (v) et/ou la fréquence (f) de vibration,
    d) déterminer et superviser (25) le nombre d'impacts de vibration par trajet parcouru (IPF) à partir de la vitesse de déplacement (v) et de la fréquence (f) de vibration, et
    e) comparer (26) le nombre déterminé d'impacts de vibration par trajet parcouru (IPF) avec des valeurs limites prédéterminées (IPFmax, IPFmin, IPFend),
    caractérisé par
    f) la réduction (27) de l'amplitude vibratoire verticale (A) du cylindre (5) de compactage si elle excède et/ou chute en dessous d'au moins l'une des valeurs limites (IPFmax, IPFmin, IPFend).
  2. Procédé (22) selon la revendication 1,
    caractérisé en ce que
    ladite réduction (27) de l'amplitude vibratoire verticale (A) est réalisée d'une manière continue.
  3. Procédé (22) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'amplitude vibratoire verticale (A) est réduite à zéro si le nombre d'impacts de vibration par trajet parcouru (IPF) excède ou chute en dessous d'une valeur limite critique (IPFend).
  4. Procédé (22) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la vitesse (v) de déplacement et/ou la fréquence (f) de vibration sont modifiées (28) par suite d'une puissance demandée accrue (L) de l'engin (1) de compactage du sol.
  5. Procédé (22) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'engin (1) de compactage du sol comprend un accumulateur intermédiaire (18), et en ce que lors d'une puissance demandée accrue (L) de l'engin (1) de compactage du sol, une puissance supplémentaire est libérée (18) par l'accumulateur intermédiaire (18) avant de modifier (28) la vitesse (v) de déplacement et/ou la fréquence de vibration (f).
  6. Procédé (22) selon la revendication 5,
    caractérisé en ce que
    la vitesse (v) de déplacement et/ou la fréquence (f) de vibration ne sont modifiées (28) qu'après que l'énergie stockée dans l'accumulateur intermédiaire (18) ait été totalement consommée si une puissance demandée accrue (L) de l'engin (1) de compactage du sol existe encore.
  7. Procédé (22) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'amplitude vibratoire verticale (A) est augmentée lorsque ladite au moins une valeur limite (IPFmax, IPFmin, IPFend) est à nouveau dépassée ou a chuté.
  8. Procédé (22) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'amplitude vibratoire verticale (A) est ajustée à sa valeur maximale lorsque le nombre d'impacts de vibration par trajet parcouru (IPF) est dans une plage optimale prédéterminée, en particulier entre les valeurs limites (IPFmax, IPFmin).
  9. Procédé (22) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la puissance économisée par la réduction (27) de l'amplitude vibratoire verticale (A) est utilisée pour augmenter (30) la vitesse de déplacement (v) et/ou la fréquence (f) de vibration.
  10. Procédé (22) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la puissance économisée par la réduction (27) de l'amplitude vibratoire verticale (A) est utilisée pour charger (31) l'accumulateur intermédiaire (18).
  11. Procédé (22) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la fréquence (f) de vibration dudit au moins un cylindre (5) de compactage est maintenue essentiellement constante.
  12. Procédé (22) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    une puissance de sortie (E) d'un moteur d'entraînement (4) de l'engin (1) de compactage du sol est maintenue essentiellement constante.
  13. Engin (1) de compactage du sol ayant une unité (15) de commande qui est configurée pour la mise en oeuvre, et/ou qui exécute, le procédé (22) selon l'une quelconque des revendications précédentes.
  14. Engin (1) de compactage du sol selon la revendication 13, ayant au moins un châssis (3) d'engin, un moteur d'entraînement (4), au moins un rouleau (5) de compactage, un dispositif d'excitation (13) pour susciter une vibration au niveau du rouleau (5) de compactage à une fréquence (f) de vibration, un capteur de vibration (33) pour mesurer la fréquence (f) de vibration, et un détecteur de parcours (34) pour mesurer la distance parcourue.
  15. Engin (1) de compactage du sol selon l'une quelconque des revendications 13 ou 14, qui est configuré en système hybride, en particulier en hybride hydraulique, comprenant un accumulateur intermédiaire (18).
EP19786719.5A 2018-10-04 2019-09-30 Procédé de commande d'une machine de compactage de sol et machine de compactage de sol Active EP3861170B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018007825.7A DE102018007825A1 (de) 2018-10-04 2018-10-04 Verfahren zur Steuerung einer Bodenverdichtungsmaschine und Bodenverdichtungsmaschine
PCT/EP2019/000282 WO2020069769A1 (fr) 2018-10-04 2019-09-30 Procédé de commande d'une machine de compactage de sol et machine de compactage de sol

Publications (2)

Publication Number Publication Date
EP3861170A1 EP3861170A1 (fr) 2021-08-11
EP3861170B1 true EP3861170B1 (fr) 2022-10-26

Family

ID=68233952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19786719.5A Active EP3861170B1 (fr) 2018-10-04 2019-09-30 Procédé de commande d'une machine de compactage de sol et machine de compactage de sol

Country Status (3)

Country Link
EP (1) EP3861170B1 (fr)
DE (1) DE102018007825A1 (fr)
WO (1) WO2020069769A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020003682A1 (de) 2020-06-19 2021-12-23 Bomag Gmbh Bodenverdichtungsvorrichtung zur verdichtung einer untergrundbelagsschicht, asphaltwalze und verfahren zum betrieb einer bodenverdichtungsvorrichtung
CN111764235B (zh) * 2020-06-19 2022-02-18 三一汽车制造有限公司 工程机械转弯控制方法、工程机械和计算机设备
CN111749084B (zh) * 2020-06-28 2022-01-28 三一汽车制造有限公司 压路机械的控制方法和压路机械
DE102021206135A1 (de) 2021-06-16 2022-12-22 Robert Bosch Gesellschaft mit beschränkter Haftung Hydrostatischer Antrieb für eine Walze und Verfahren zur Leistungsverteilung eines derartigen Antriebs
DE102022108663A1 (de) 2022-04-09 2023-10-12 Bomag Gmbh Verfahren zur assistierten bedienunterstützung einer bodenverdichtungsmaschine und bodenverdichtungsmaschine
DE102022122738A1 (de) 2022-09-07 2024-03-07 Wacker Neuson Linz Gmbh Verfahren zum Betreiben einer mobilen Arbeitsmaschine
DE102022209497A1 (de) 2022-09-12 2024-03-14 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Steuerung eines hydrostatischen Antriebs
DE102022210852A1 (de) 2022-10-14 2024-05-08 Bomag Gmbh BAUMASCHINE, INSBESONDERE STRAßENFERTIGER ODER TANDEMWALZE

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938438A (en) * 1955-07-28 1960-05-31 Baldwin Lima Hamilton Corp Vibratory compactor
US3075436A (en) * 1960-05-06 1963-01-29 Engineering Dev Co Inc Soil compaction machine
US3722380A (en) * 1970-01-17 1973-03-27 B Kaltenegger Vibrating roller earth compactor
US3737244A (en) * 1971-07-28 1973-06-05 R Wilson Soil compactor
US3752592A (en) * 1970-05-02 1973-08-14 Losenhausen Maschinenbau Ag Method and apparatus for compacting the placement material in road building
GB1483046A (en) * 1974-09-30 1977-08-17 Banbury Buildings Holdings Ltd Casting or distributing a mass of material from a hopper
US4568218A (en) * 1984-07-16 1986-02-04 Wacker Corporation Adjustably controllable centrifugal vibratory exciter
US6019179A (en) * 1997-02-07 2000-02-01 Bomag Gmbh Vibration tamper
CN1734235A (zh) * 2004-08-09 2006-02-15 德国宝马格公司 确定与加速度无关的倾斜角的装置和方法
US20100278590A1 (en) * 2008-01-18 2010-11-04 Wacker Neuson Se Vibration plate having belt drive having multiple deflection
US20110158745A1 (en) * 2009-12-31 2011-06-30 Caterpillar Paving Products Inc. Vibratory system for a compactor
CN106868989A (zh) * 2017-03-01 2017-06-20 长安大学 振动压路机钢轮无级调幅装置
CN107288013A (zh) * 2017-08-24 2017-10-24 泉州市西决三维科技有限公司 一种基于市政道路工程的快速施工振平装置
US9937529B1 (en) * 2016-11-29 2018-04-10 Caterpillar Inc. Device for controlling the movement of an eccentric mass of a vibration inducing mechanism
CN108385466A (zh) * 2018-03-08 2018-08-10 中交公局桥隧工程有限公司 改性沥青路面面层施工工艺
CN108824136A (zh) * 2018-07-25 2018-11-16 沈家洛 一种具有抗震的简便手推式压土机
WO2018236333A1 (fr) * 2017-06-19 2018-12-27 Volvo Construction Equipment Ab Ensembles excentriques vibratoires pour machines de compactage
CN109183574A (zh) * 2018-09-01 2019-01-11 陕西中大机械集团有限责任公司 一种智能化多用途的大宽度大厚度抗离析摊铺机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5719338A (en) * 1995-10-24 1998-02-17 Ingersoll-Rand Company Method and apparatus for providing an indication of compaction in a vibration compaction vehicle
US6558072B2 (en) * 2001-05-15 2003-05-06 Caterpillar Paving Products Inc. Speed control system for a work machine
DE102008050576A1 (de) * 2008-10-06 2010-04-08 Bomag Gmbh Vorrichtung zur Erzeugung einer Kreisschwingung oder einer gerichteten Schwingung mit stufenlos verstellbarer Schwingungsamplitude bzw. Erregerkraft
US11293147B2 (en) * 2017-03-21 2022-04-05 Volvo Construction Equipment Ab Vibratory compaction machines providing coordinated impacts from first and second drums and related control systems and methods

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938438A (en) * 1955-07-28 1960-05-31 Baldwin Lima Hamilton Corp Vibratory compactor
US3075436A (en) * 1960-05-06 1963-01-29 Engineering Dev Co Inc Soil compaction machine
US3722380A (en) * 1970-01-17 1973-03-27 B Kaltenegger Vibrating roller earth compactor
US3752592A (en) * 1970-05-02 1973-08-14 Losenhausen Maschinenbau Ag Method and apparatus for compacting the placement material in road building
US3737244A (en) * 1971-07-28 1973-06-05 R Wilson Soil compactor
GB1483046A (en) * 1974-09-30 1977-08-17 Banbury Buildings Holdings Ltd Casting or distributing a mass of material from a hopper
US4568218A (en) * 1984-07-16 1986-02-04 Wacker Corporation Adjustably controllable centrifugal vibratory exciter
US6019179A (en) * 1997-02-07 2000-02-01 Bomag Gmbh Vibration tamper
CN1734235A (zh) * 2004-08-09 2006-02-15 德国宝马格公司 确定与加速度无关的倾斜角的装置和方法
US20100278590A1 (en) * 2008-01-18 2010-11-04 Wacker Neuson Se Vibration plate having belt drive having multiple deflection
US20110158745A1 (en) * 2009-12-31 2011-06-30 Caterpillar Paving Products Inc. Vibratory system for a compactor
US9937529B1 (en) * 2016-11-29 2018-04-10 Caterpillar Inc. Device for controlling the movement of an eccentric mass of a vibration inducing mechanism
CN106868989A (zh) * 2017-03-01 2017-06-20 长安大学 振动压路机钢轮无级调幅装置
WO2018236333A1 (fr) * 2017-06-19 2018-12-27 Volvo Construction Equipment Ab Ensembles excentriques vibratoires pour machines de compactage
CN107288013A (zh) * 2017-08-24 2017-10-24 泉州市西决三维科技有限公司 一种基于市政道路工程的快速施工振平装置
CN108385466A (zh) * 2018-03-08 2018-08-10 中交公局桥隧工程有限公司 改性沥青路面面层施工工艺
CN108824136A (zh) * 2018-07-25 2018-11-16 沈家洛 一种具有抗震的简便手推式压土机
CN109183574A (zh) * 2018-09-01 2019-01-11 陕西中大机械集团有限责任公司 一种智能化多用途的大宽度大厚度抗离析摊铺机

Also Published As

Publication number Publication date
EP3861170A1 (fr) 2021-08-11
DE102018007825A1 (de) 2020-04-09
WO2020069769A1 (fr) 2020-04-09

Similar Documents

Publication Publication Date Title
EP3861170B1 (fr) Procédé de commande d'une machine de compactage de sol et machine de compactage de sol
EP2558649B1 (fr) Agencement pour fournir une force de pression pulsée
EP0756656B1 (fr) Engin pour travaux routiers
DE112011104410B4 (de) Steuerungsvorrichtung und -verfahren für ein hydrostatisch betriebenes Fahrzeug
WO2008037347A1 (fr) Système de freinage et méthode de freinage d'un véhicule à propulsion hybride
DE102013021607A1 (de) Selbstfahrende Arbeitsmaschine sowie Verfahren zum Abbremsen einer solchen Arbeitsmaschine
EP3947819A1 (fr) Machine de compactage de sol avec moteur électrique et procédé de fonctionnement
WO2010040490A1 (fr) Engin de travail à propulsion hybride
DE102013008939B4 (de) Selbstfahrende Bodenfräsmaschine zum Bearbeiten von Bodenoberflächen mit einer Fräseinrichtung
DE102016004298A1 (de) Temperaturabhängige autoadaptive Verdichtung
EP2333157A1 (fr) Procédé de réglage de la puissance d'une finisseuse ou d'un chargeur et finisseuse ou chargeur
DE102017100963A1 (de) Arbeitsmaschine
DE102010014893A1 (de) Vorrichtung zum Bearbeiten von Bodenoberflächen
EP3587668B1 (fr) Engin de construction automoteur et procédé de traitement des revêtements de sol
DE102015006250A1 (de) Anbaubohleneinheit für einen Straßenfertiger und Straßenfertiger mit einer solchen Anbaubohleneinheit
DE102016109888A1 (de) Bodenverdichter und Verfahren zum Betreiben eines Bodenverdichters
DE1954867A1 (de) Vibrator-Einheit
DE102020003044A1 (de) Baumaschine und verfahren zur erhöhung der standsicherheit einer baumaschine
DE202011105189U1 (de) Baumaschine, insbesondere Radlader, Walze oder dergleichen Baufahrzeug
EP3424788B1 (fr) Véhicule de travail agricole
WO2015140171A2 (fr) Dispositif automoteur pour le traitementde finition de du sols automoteur et son procédé de manipulation de celui-ci
EP3901372B1 (fr) Dispositif de compactage du sol pourvu d'essieu monté à commande électrique
EP3767033B1 (fr) Engin de construction automoteur et procédé de traitement des revêtements de sol
DE102014118785A1 (de) Antriebssystem für eine Bodenbearbeitungsmaschine, insbesondere Bodenverdichter, und Verfahren zum Betreiben einer Bodenbearbeitungsmaschine
DE102022210736A1 (de) Verfahren zum abbremsen einer verdichtungsmaschine und verdichtungsmaschine

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210202

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20220513

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1527106

Country of ref document: AT

Kind code of ref document: T

Effective date: 20221115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502019006060

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20221026

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230227

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230126

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230226

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230127

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230527

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502019006060

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20230727

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502019006060

Country of ref document: DE

Representative=s name: ZIMMERMANN & PARTNER PATENTANWAELTE MBB, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CZ

Payment date: 20230921

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221026

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20230921

Year of fee payment: 5

Ref country code: DE

Payment date: 20230919

Year of fee payment: 5

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230930

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20230930