EP1943178A1 - Fahrzeug und verfahren zur antriebs-regelung bei einem fahrzeug - Google Patents
Fahrzeug und verfahren zur antriebs-regelung bei einem fahrzeugInfo
- Publication number
- EP1943178A1 EP1943178A1 EP06762999A EP06762999A EP1943178A1 EP 1943178 A1 EP1943178 A1 EP 1943178A1 EP 06762999 A EP06762999 A EP 06762999A EP 06762999 A EP06762999 A EP 06762999A EP 1943178 A1 EP1943178 A1 EP 1943178A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive
- controller
- vehicle according
- torque
- speed
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/07—Floor-to-roof stacking devices, e.g. "stacker cranes", "retrievers"
- B66F9/072—Travelling gear therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/24—Electrical devices or systems
Definitions
- the invention relates to a vehicle and a method for the drive control in a vehicle.
- the invention is therefore the object of developing a vehicle such that a stable driving results.
- the object is achieved in the vehicle according to the features specified in claim 1 and in the method according to the features indicated in claim.
- Essential features of the invention in the vehicle are that it comprises two electric drives, which are connected for data transmission,
- a controller of the second drive can be transmitted
- Regulator can be determined by the speed and torque or values corresponding, dependent or connected
- Torque or corresponding values of corresponding, dependent or associated sizes of the second drive are taken into account.
- vehicles can be used, which have a lower drive and an upper drive, such as high-build stacker cranes or
- In the invention are advantageously particularly high Can be used. Especially in such applications, a stable handling is important and it gets the advantage of the invention particular weight.
- the drives contrary to the invention would be operated only in speed synchronous operation and the wheels are for example round and metallic, so may have slip, it could result that the mast connecting the two drives, ie the linkage, would have a non-disappearing variable inclination angle , It can also tilting vibrations of the mast occur.
- a mast swing of the linkage connecting the drives can be reduced or even prevented by the inventive control.
- the slave drive such as the upper drive of the vehicle
- the speed and torque of the master drive for example, so the lower drive of the vehicle known. His own torque is also known to him.
- the ideal distribution is when the lever arms, ie torques acting on the center of gravity, split up in such a way that no rotational movement of the connecting linkage is generated.
- the slave adjusts the manipulated variable target speed accordingly, whereby the said equation is achieved as well as possible.
- the drives each drive at least one slip-laden wheel, in particular generate the feed by wheels running on rails.
- the advantage here is that the wheels are inexpensive and the speed known to the drive is converted into a precisely determinable peripheral speed.
- the web speed of the touch point may be different from the peripheral speed when slip occurs.
- the rails mentioned are provided, for example, for safe guidance of the vehicle. In particular, such is foreseeable above and below the vehicle.
- the invention is also applicable to vehicles having differently arranged rails, such as right and left side of the vehicle. But it is also applicable to trackless systems in which slip wheels on a running surface, such as floor surface, side surface or ceiling surface roll.
- speed and motor current of the first drive and motor current of the second drive are taken into account by the controller.
- the advantage here is that the speed of the second drive is variable and can be specified as a manipulated variable.
- a downstream speed controller then regulates the second drive to this desired setpoint speed. In this case, then sets a correspondingly changed torque and said lever law is essentially met, so that no rotation or rotational movement is triggered.
- controller is a proportional controller, so P controller, or a Pl controller or a PID controller.
- P controller or a Pl controller or a PID controller.
- a control deviation is supplied to the P controller, PI controller or PID controller.
- the setpoint speed specification for the second drive is such that, when the control deviation disappears, the peripheral speeds of the wheels, in particular also the path speed of the contact points of the wheels, are the same.
- control deviation is a weighted difference of the motor currents, in particular according to the type (l_Slave_lst - ex l_Master_lst), where l_Slave_lst the actual motor current of the slave drive, ie the torque of the slave drive corresponds, c the weighting of the target torque ratio Both drives and l_ Masterjst the actual motor current of the master drive
- the parameter c can also be obtained by other methods or control methods as a result of
- the drives are connected via a linkage, in particular rigid.
- a linkage in particular rigid.
- the tracks of the wheels are spaced parallel to each other.
- rails are used for a rail-mounted version.
- metal rails and metal wheels can be used, including wheels that have a metallic tread. This can cause slip.
- the invention is especially advantageous in such systems.
- the center of gravity is variable during operation and the weight c of the target torque ratio of the two drives is adjusted and / or changed accordingly.
- the inventions can be used in vehicles that include, for example, a Hubkorb or conveyor cage, which is movable in height.
- the height of the center of gravity changes accordingly.
- the torque distribution of the drives with respect to the center of gravity can now be taken into account with the parameter c. It is clear that everyone Drive generates a feed force.
- the center of gravity can be taken as the zero vector for the space, ie as the origin of the coordinates. Then the torque results as a cross product of the respective location vector at the point of application of the feed force and the feed force of the respective drive.
- the aim is to achieve a cancellation of the sum of all centering torques.
- the parameter c is selected accordingly. If the center of gravity shifts during operation, in particular in its height, then the parameter c is changed accordingly, so that continues to act on the center of gravity no resulting torque.
- the regulation is realized in such a way that it always tries to achieve this goal.
- the vehicle is a rack conveyor vehicle, in particular a track-guided.
- a rack conveyor vehicle in particular a track-guided.
- the advantage here is that such storage and retrieval devices are used in the invention. Because these can have a large height of their mast, so the linkage, which connects the upper and lower end of the vehicle. Because of the high altitude, an upper and a lower drive is necessary. Both drives each drive wheels that run on a rail and are slippery. The principle possible mast swing is reduced by the invention or even completely prevented.
- At least two drives are provided.
- Torque or corresponding values of corresponding, dependent or associated sizes of the second drive are taken into account.
- the advantage here is that instead of the torque and the motor current is used as a size. Because this is closely related to the torque and is simple and economically detectable. Instead of the speed, the angle can also be detected and used by differentiating in the controller.
- parameters of the control method are changed depending on the position of the center of gravity.
- FIG. 1 symbolically shows a device according to the invention comprising a master and a slave drive. Both are coupled via a linkage and each drive wheels, which may have relative to the tread, such as rail, slip.
- the master drive has at least one wheel which runs on a rail laid on the ground.
- the slave drive has a likewise slip-capable wheel 2, which runs on a track laid over the vehicle.
- the diameters of the wheels 1 and 2 can be different and can also change during the service life, for example because of different degrees of wear.
- the torque requirement of the drives M and S is determined. Then, the speed is adjusted or influenced so as to give an ideal force distribution.
- the lever arms of the forces generated by the respective drives should be the same with respect to the center of gravity P.
- the torque of the respective drive or a connected size is determined, such as force of the drive in the rail direction or the like.
- the motor current of the electric motor of the drive can be determined. Because this is a directly related to the torque size, in particular over a wide range proportionally coherent size.
- the speed of the slave drive is set to be synchronous with the speed of the master drive, but a correction value is added. This value is determined as a function of the torque of the slave and master drive.
- a first simple implementation is thus provided in the slave drive controller which receives information about torque or motor current from the master drive, in particular via a communication medium, such as a fieldbus, such as CAN bus, Interbus or Profibus, Devicenet or Ethernet, or a wireless data transmission system such as Bluetooth or the like.
- a communication medium such as a fieldbus, such as CAN bus, Interbus or Profibus, Devicenet or Ethernet, or a wireless data transmission system such as Bluetooth or the like.
- the controller determines the desired speed of the slave in the following way:
- N_Slave_Soll K x N_Master_lst + b x (l_Slave_lst - e x l_Master_lst)
- N_Slave_Soll is the setpoint speed of the slave drive
- N_Master_lst is the actual speed of the slave drive b the proportional portion of the P-controller
- l_Slave_lst is the actual motor current of the slave drive, ie the torque of the slave drive
- c is the weighting of the setpoint torque ratio of the two drives
- l_ Masterjst the actual motor current of the master drive is, thus corresponds to the torque of the master drive.
- the center of gravity P of the vehicle is at a constant height, H2.
- further elements such as integrators or differential elements, are added. Precontrols are also successfully added.
- the current measured value is filtered, in particular with a PT1 element, ie low-pass filtered.
- the center of gravity depending on the position of the Hubkorbes or conveyor cage, which may include a load to be funded, in variable height.
- the distances H1 and H2 are not constant.
- the position of the center of gravity is then taken into account by a corresponding change in the value c.
- the value c is provided for adaptation to variable center of gravity positions.
- this can also be done by an electronic circuit. This can also be provided with appropriate sensors.
- the general advantage of the invention is that a tilt sensor can be saved.
- the expert can expand the principles accordingly and thus the target speed of the slave drive can be determined.
- the motor current corresponds to the torque at the output of the electric motor and is used as the torque corresponding size by the controller in its control method.
- the determined friction moments are taken into account. This includes not only the losses in the downstream transmission but also braking torques of connected brakes and the friction moments when implementing the rotational movement of the driven wheel on the rail, especially during slippage.
- the described parameter c is adjusted accordingly.
- these friction moments are determined in advance in a test procedure, that is to say before starting the method according to the invention. This can also be called a learning journey. In this way, the parameter c can be determined particularly well in advance.
- the parameter c is varied during driving of the vehicle and thus found out the optimum value.
- the minimization of the mast swing and the angle of inclination is used as an optimization criterion.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005047580.9A DE102005047580B4 (de) | 2005-10-04 | 2005-10-04 | Spurgeführtes Regalförderfahrzeug und Verfahren zur Antriebs-Regelung bei einem spurgeführten Regalförderfahrzeug |
| PCT/EP2006/007787 WO2007039009A1 (de) | 2005-10-04 | 2006-08-05 | Fahrzeug und verfahren zur antriebs-regelung bei einem fahrzeug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1943178A1 true EP1943178A1 (de) | 2008-07-16 |
| EP1943178B1 EP1943178B1 (de) | 2009-06-24 |
Family
ID=36972726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06762999A Active EP1943178B1 (de) | 2005-10-04 | 2006-08-05 | Fahrzeug und verfahren zur antriebs-regelung bei einem fahrzeug |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8417398B2 (de) |
| EP (1) | EP1943178B1 (de) |
| CN (1) | CN101277895B (de) |
| AT (1) | ATE434585T1 (de) |
| DE (2) | DE102005047580B4 (de) |
| WO (1) | WO2007039009A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT506266A1 (de) | 2007-12-28 | 2009-07-15 | Tgw Mechanics Gmbh | Fahrzeug, insbesondere regalbediengerät, sowie verfahren zur antriebsregelung eines derartigen fahrzeugs |
| US9483545B2 (en) * | 2014-05-30 | 2016-11-01 | International Business Machines Corporation | Grouping data in a database |
| DE202015004370U1 (de) * | 2015-06-15 | 2016-09-19 | Winkel Gmbh | Regalbediengerät mit einem Hubmast |
| US10279823B2 (en) * | 2016-08-08 | 2019-05-07 | General Electric Company | System for controlling or monitoring a vehicle system along a route |
| CN108910767B (zh) * | 2018-06-25 | 2023-08-08 | 浙江工业大学 | 一种叉车用转矩信号获取装置 |
| US11519716B2 (en) * | 2019-02-12 | 2022-12-06 | Sew-Eurodrive Gmbh & Co. Kg | Apparatus, method for operating an apparatus having a mobile part movable on a movement plane, and use thereof |
| CN115431993B (zh) * | 2022-08-29 | 2024-04-02 | 清安储能技术(重庆)有限公司 | 运输仿真检测方法、装置、设备及存储介质 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3792758A (en) * | 1971-11-15 | 1974-02-19 | American Chain & Cable Co | Stacker crane construction |
| DE19534291C2 (de) | 1995-09-15 | 2002-02-21 | Mannesmann Ag | Regalanlage mit an Schienen geführtem Regalbediengerät |
| DE19608293C2 (de) | 1996-02-21 | 2002-11-14 | Siemens Ag | Handhabungsgerät |
| DE19614660A1 (de) * | 1996-04-13 | 1997-10-16 | Mannesmann Ag | Regalbediengerät |
| DE19849276C2 (de) * | 1998-10-27 | 2001-02-08 | Sew Eurodrive Gmbh & Co | Verfahren zum Durchfahren einer Strecke mit einem kurvengängigen Regalförderfahrzeug |
| EP1061035A2 (de) | 1999-06-10 | 2000-12-20 | Murata Kikai Kabushiki Kaisha | Regalbediengerät |
| JP3629697B2 (ja) * | 2000-07-12 | 2005-03-16 | 村田機械株式会社 | 複数の走行モータを備えた搬送装置 |
| JP3591638B2 (ja) * | 2000-10-02 | 2004-11-24 | 村田機械株式会社 | スタッカークレーン |
| US6864646B2 (en) * | 2003-02-14 | 2005-03-08 | General Motors Corporation | Multiple inverter system with low power bus ripples and method therefor |
| US7257463B2 (en) * | 2003-03-07 | 2007-08-14 | Daifuku Co., Ltd. | Traveling body system, automated storage and retrieval system, and method for controlling traveling body |
| JP2006076699A (ja) * | 2004-09-08 | 2006-03-23 | Daifuku Co Ltd | 物品搬送車 |
| JP4186082B2 (ja) * | 2006-05-01 | 2008-11-26 | 村田機械株式会社 | 走行台車 |
-
2005
- 2005-10-04 DE DE102005047580.9A patent/DE102005047580B4/de not_active Expired - Lifetime
-
2006
- 2006-08-05 EP EP06762999A patent/EP1943178B1/de active Active
- 2006-08-05 DE DE502006004086T patent/DE502006004086D1/de active Active
- 2006-08-05 CN CN2006800367688A patent/CN101277895B/zh active Active
- 2006-08-05 WO PCT/EP2006/007787 patent/WO2007039009A1/de not_active Ceased
- 2006-08-05 AT AT06762999T patent/ATE434585T1/de active
- 2006-08-05 US US12/083,187 patent/US8417398B2/en active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007039009A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101277895A (zh) | 2008-10-01 |
| US20090254232A1 (en) | 2009-10-08 |
| DE102005047580A1 (de) | 2007-04-19 |
| WO2007039009A1 (de) | 2007-04-12 |
| US8417398B2 (en) | 2013-04-09 |
| DE502006004086D1 (de) | 2009-08-06 |
| CN101277895B (zh) | 2012-05-23 |
| EP1943178B1 (de) | 2009-06-24 |
| ATE434585T1 (de) | 2009-07-15 |
| DE102005047580B4 (de) | 2019-09-05 |
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