EP1746069B1 - Chariot industriel avec entrainement avec courbes caractéristiques différentes - Google Patents
Chariot industriel avec entrainement avec courbes caractéristiques différentes Download PDFInfo
- Publication number
- EP1746069B1 EP1746069B1 EP06013859A EP06013859A EP1746069B1 EP 1746069 B1 EP1746069 B1 EP 1746069B1 EP 06013859 A EP06013859 A EP 06013859A EP 06013859 A EP06013859 A EP 06013859A EP 1746069 B1 EP1746069 B1 EP 1746069B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- characteristic curve
- industrial truck
- drive control
- speed
- travel
- 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.)
- Revoked
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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
- B66F9/075—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 an industrial truck for a traveling operator, in particular counterbalance forklift, with a traction drive, which is controllable by an operator by means of a driver, wherein depending on the position of the driver in a traction drive a setpoint for the driving speed of the truck is specified and for the Relationship between the position of the driver and the setpoint for the driving speed in a traction drive control at least two different characteristics are stored, the characteristic of the traction drive control a position of the driver assign a setpoint of the vehicle speed and can be switched in the traction drive control between the curves, wherein according to at least a first characteristic for normal driving with fully actuated throttle the setpoint for the driving speed of the maximum speed of the truck corresponds ,
- a generic truck is for example in the EP 1 318 099 A1 described. From this document it is known to perform the traction drive control so that it can be switched between different driving programs. There are different characteristics available for the assignment of the driving speed to the position of the driver, which are characterized by linear, progressive or degressive dynamics.
- a truck is known in which a characteristic curve for the vehicle speed in certain steering angle ranges is modified by a left-angle-dependent correction factor to ensure the stability of the truck when cornering by reducing the vehicle speed.
- the JP 2004-161471 A discloses an industrial truck in which a vehicle speed characteristic is changed by the signal of a brake pedal to facilitate an inching operation.
- a particularly sensitive actuation of the traction drive by the operator is required, in particular, during the picking up and setting down of loads.
- the truck is usually moved at a speed of at most 10% to 20% of the maximum driving speed.
- the operator is - depending on the selected driving program - a maximum of 30% to 50% of the actuation travel of the driver available.
- the present invention is based on the object to provide an industrial truck of the type mentioned, in which the handling of sensitive goods and an accurate positioning of a load is simplified.
- the target speed for the vehicle speed is less than the maximum speed of the truck, with the second characteristic of the setpoint for the driving speed at fully actuated driver at most 50th %, preferably at most 30% of the maximum speed of the truck, and wherein a fine control range of the driver for sensitive operation of the traction drive by the operator, in which the setpoint for the vehicle speed at most 20% of the maximum speed of the truck corresponds to the second characteristic over at least 50%, preferably over at least 70% of the actuating travel of the driver extends .
- the second characteristic is intended exclusively for the fine control of the truck.
- the second characteristic curve is selected in the traction drive control, it will also be activated completely actuated driver does not reach the maximum speed of the truck. Instead, the entire actuating travel of the driver is available for the fine control of the truck. If the second characteristic curve is active, the truck can only be moved in this reduced speed range. If you then want to drive faster again, the traction drive control must be switched to one of the first characteristics.
- the fine control range is defined here as that region of the actuation travel of the driver in which the selected driving speed is at most 20% of the maximum speed. In the second characteristic curve according to the invention, this fine control range is particularly large, so that the fine control of the A considerably larger actuation path is available than with a conventional industrial truck.
- the driver can be designed here as a pedal or as a hand lever.
- the functionality of the second characteristic described above is independent of the design of the driver.
- the driver is often formed by a pedal.
- Smaller trucks, in particular driver's seat or driver's pallet trucks often have a hand lever as a driver, which can be designed for example in the form of a joystick, but also as a rotary switch.
- switching takes place from the first characteristic to the second characteristic and / or from the second characteristic to the first characteristic by the operator by means of a control element. Between the first and the second characteristic is thus switched manually in this embodiment. The operator deliberately selects the desired characteristic curve by means of the operating element.
- the operating element is formed by a manual switch or a manual push button.
- the control element may be formed by a foot switch or a foot switch.
- a switch retains its switch position after a single actuation, even if it is released by the operator.
- the switch thus has, for example, a first switching position for the first characteristic curve and a second switching position for the second characteristic curve.
- the operating element is arranged on the driver.
- the control element for example, by a finger-operated button or Switch be formed.
- the driver is formed by a pedal
- the operating element can be formed, for example, by a pushbutton, rocker switch or toggle switch which can be actuated with the heel.
- the operating element can be actuated by the operator with the knee.
- the operating element is arranged in the region of the knee of an operator sitting on a driver's seat. The operating element can then be actuated by a lateral movement of the knee.
- the operating element is formed by an optical sensor, for example by a sensor for detecting an eye contact.
- the operating element works without contact.
- a sensor for detecting an eye contact detects, for example, when the operator looks over a certain period at a specific point in the truck, for example, on a fork and then activates the second curve.
- control element is formed by an acoustic sensor, for example by a sensor for detecting speech signals. In this way it is possible to switch between the characteristic curves with the aid of speech signals.
- switching from the first characteristic to the second characteristic and / or from the second characteristic to the first characteristic in response to external signals is then connected to a receiver for a corresponding external signal.
- the external signals can be generated, for example, as radio signals from a warehouse management system or fleet management system. These systems can thus influence the handling of the truck from the outside.
- a corresponding external signal can, for example, from an RFID chip are generated, which is fixedly installed and is recognized by the traction drive control with a corresponding receiver in passing.
- the traction drive control is designed such that switching from the first curve to the second curve and / or from the second curve to the first curve automatically, depending on operating parameters of the traction drive and / or a linear actuator of Truck takes place.
- the second characteristic curve can also be activated if a load-receiving means has been raised beyond a certain lifting height by means of the lifting drive.
- a switchover from the second characteristic curve to the first characteristic curve can, for example, in principle take place when the driver is held over a certain period of time by the operator in the position for maximum driving speed.
- This function can also be implemented, for example, in addition to an operating element for switching between the characteristic curves.
- different devices for switching between the characteristic curves can be combined in the industrial truck, that is, for example, a control element for operation by the operator together with a receiver for external signals and an evaluation of operating parameters.
- the switching between the curves is carried out with a continuous transition function to avoid a sudden acceleration or deceleration of the truck and an associated risk of accident or surprise the driver.
- This first characteristic 1 has a linear course in the present exemplary embodiment. It is also possible - as in the EP 1 318 099 A1 described - for the first curve 1 to provide a progressive or degressive course, the starting point and the end point of the first curve 1 is not changed. Similarly, it is possible to deposit in the traction drive control various first characteristics for normal driving, so that different driving characteristics of the truck are selectable.
- a second characteristic curve 2 is provided for the fine control of the industrial truck, in which a speed of 30% of the maximum driving speed v max is assigned to a maximum-actuated driver. Also for the second characteristic curve 2, it is possible to provide a characteristic curve with progressive or degressive progression instead of the drawn linear progression. It is also possible to vary the achievable with the second curve maximum speed, for example, to 25% or 40% of the maximum speed v max of the truck. These variants for the second characteristic curve 2 can replace the drawn characteristic curve 2, or be deposited in the traction drive control system in addition to the marked characteristic curve 2.
- the fine control range is a sensitive driving, for example, to record and stack sensitive loads with the truck, particularly easy.
- a changeover in the traction drive control between the first characteristic curve 1 and the second characteristic curve 2 takes place either manually by the operator or automatically, depending on the operating parameters of the industrial truck or on external signals.
- the aim is to provide the operator with a particularly suitable characteristic curve for controlling the traction drive for each operating situation of the industrial truck.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Claims (12)
- Chariot de manutention pour un opérateur transporté, notamment chariot-élévateur à contrepoids, comprenant un mécanisme d'entraînement de déplacement qui peut être commandé par un opérateur au moyen d'un codeur de déplacement, une valeur de consigne pour la vitesse de déplacement du chariot de manutention étant prédéfinie en fonction de la position du codeur de déplacement dans une commande de mécanisme d'entraînement de déplacement et au moins deux courbes caractéristiques (1, 2) différentes étant stockées dans une commande de mécanisme d'entraînement de déplacement pour la relation entre la position du codeur de déplacement et la valeur de consigne pour la vitesse de déplacement, les courbes caractéristiques (1, 2) de la commande de mécanisme d'entraînement de déplacement associant une valeur de consigne de la vitesse de déplacement (v) à une position (α) du codeur de déplacement et une permutation entre les courbes caractéristiques (1, 2) pouvant être effectuée dans la commande de mécanisme d'entraînement de déplacement, la valeur de consigne de la vitesse de déplacement (v) lorsque le codeur de déplacement est actionné à fond, selon au moins une première courbe caractéristique (1) pour le déplacement normal, correspondant à la vitesse maximale (vmax) du chariot de manutention, caractérisé en ce que selon une deuxième courbe caractéristique (2) pour la commande précise du chariot de manutention, lorsque le codeur de déplacement est actionné à fond, la valeur de consigne de la vitesse de déplacement (v) est inférieure à la vitesse maximale (vmax) du chariot de manutention, la valeur de consigne de la vitesse de déplacement (v) avec la deuxième courbe caractéristique (2), lorsque le codeur de déplacement est actionné à fond, étant égale au maximum à 50 %, de préférence au maximum à 30 % de la vitesse maximale (vmax) du chariot de manutention et une plage de commande précise (3) du codeur de déplacement, destinée à un actionnement sensible du mécanisme d'entraînement de déplacement par l'opérateur, dans laquelle la valeur de consigne de la vitesse de déplacement (v) correspond au maximum à 20 % de la vitesse maximale (vmax) du chariot de manutention, s'étendant avec la deuxième courbe caractéristique (2) sur au moins 50 %, de préférence sur au moins 70 % de la course d'actionnement (α) du codeur de déplacement.
- Chariot de manutention selon la revendication 1, caractérisé en ce que le codeur de déplacement est réalisé sous la forme d'une pédale ou d'un levier manuel.
- Chariot de manutention selon la revendication 1 ou 2, caractérisé en ce qu'une permutation de la première courbe caractéristique (1) sur la deuxième courbe caractéristique (2) et/ou de la deuxième courbe caractéristique (2) sur la première courbe caractéristique (1) par l'opérateur s'effectue au moyen d'un élément de commande.
- Chariot de manutention selon l'une des revendications 1 à 3, caractérisé en ce que l'élément de commande est formé par un commutateur manuel ou par un poussoir manuel.
- Chariot de manutention selon l'une des revendications 1 à 4, caractérisé en ce que l'élément de commande est formé par un commutateur au pied ou par un poussoir au pied.
- Chariot de manutention selon l'une des revendications 1 à 5, caractérisé en ce que l'élément de commande est disposé sur le codeur de déplacement.
- Chariot de manutention selon l'une des revendications 1 à 6, caractérisé en ce que l'élément de commande peut être actionné par l'opérateur avec le genou.
- Chariot de manutention selon l'une des revendications 1 à 7, caractérisé en ce que l'élément de commande est formé par un capteur optique, par exemple un capteur pour détecter un contact de l'oeil.
- Chariot de manutention selon l'une des revendications 1 à 8, caractérisé en ce que l'élément de commande est formé par un capteur sonore, par exemple un capteur pour détecter des signaux vocaux.
- Chariot de manutention selon l'une des revendications 1 à 9, caractérisé en ce qu'une permutation de la première courbe caractéristique (1) sur la deuxième courbe caractéristique (2) et/ou de la deuxième courbe caractéristique (2) sur la première courbe caractéristique (1) s'effectue en fonction de signaux externes.
- Chariot de manutention selon l'une des revendications 1 à 10, caractérisé en ce qu'une permutation de la première courbe caractéristique (1) sur la deuxième courbe caractéristique (2) et/ou de la deuxième courbe caractéristique (2) sur la première courbe caractéristique (1) s'effectue automatiquement en fonction de l'endroit où se trouve le chariot de manutention.
- Chariot de manutention selon l'une des revendications 1 à 11, caractérisé en ce que la commande de mécanisme d'entraînement de déplacement est réalisée de telle sorte qu'une permutation de la première courbe caractéristique (1) sur la deuxième courbe caractéristique (2) et/ou de la deuxième courbe caractéristique (2) sur la première courbe caractéristique (1) s'effectue automatiquement en fonction de paramètres de fonctionnement du mécanisme d'entraînement de déplacement et/ou d'un mécanisme d'entraînement de levage du chariot de manutention.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005033702A DE102005033702A1 (de) | 2005-07-19 | 2005-07-19 | Flurförderzeug mit einem Fahrantrieb mit verschiedenen Kennlinien |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1746069A1 EP1746069A1 (fr) | 2007-01-24 |
EP1746069B1 true EP1746069B1 (fr) | 2011-01-19 |
Family
ID=37067584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06013859A Revoked EP1746069B1 (fr) | 2005-07-19 | 2006-07-04 | Chariot industriel avec entrainement avec courbes caractéristiques différentes |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1746069B1 (fr) |
AT (1) | ATE496000T1 (fr) |
DE (2) | DE102005033702A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9533864B2 (en) | 2014-04-30 | 2017-01-03 | Hyster-Yale Group, Inc. | Vehicle control systems and methods |
US11352243B2 (en) | 2018-09-13 | 2022-06-07 | Crown Equipment Corporation | System and method for controlling a maximum vehicle speed for an industrial vehicle based on a calculated load |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013111638A1 (de) * | 2013-10-22 | 2015-04-23 | Jungheinrich Aktiengesellschaft | Flurförderzeug mit einem Fahrgeschwindigkeitsgeber |
US20220340017A1 (en) * | 2019-09-27 | 2022-10-27 | Mitsubishi Logisnext Europe Oy | Control of torque in electric lift trucks |
DE102021105746A1 (de) * | 2021-03-10 | 2022-09-15 | Still Gesellschaft Mit Beschränkter Haftung | Verfahren zum Steuern einer mobilen Arbeitsmaschine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10167692A (ja) * | 1996-12-10 | 1998-06-23 | Nippon Yusoki Co Ltd | フォークリフトの操作装置 |
JPH112138A (ja) * | 1997-06-16 | 1999-01-06 | Nissan Motor Co Ltd | フォークリフトの車速制御装置 |
JPH11209098A (ja) * | 1998-01-27 | 1999-08-03 | Toyota Autom Loom Works Ltd | バッテリフォークリフトの走行制御装置 |
DE10054789A1 (de) * | 2000-11-04 | 2002-05-08 | Still Wagner Gmbh & Co Kg | Flurförderzeug mit einem Hubgerüst und einer zusätzlichen Bewegungsvorrichtung für ein Lastaufnahmemittel |
DE10159409A1 (de) | 2001-12-04 | 2003-06-12 | Still Gmbh | Mobile Arbeitsmaschine mit einer Dynamikregelung für einen Fahrantrieb und/oder einen Arbeitsantrieb |
JP2004161471A (ja) * | 2002-11-15 | 2004-06-10 | Nippon Yusoki Co Ltd | 電動車両の走行制御装置 |
JP4141314B2 (ja) * | 2003-05-12 | 2008-08-27 | 日本輸送機株式会社 | 全方向操舵式フォークリフトの走行規制装置 |
-
2005
- 2005-07-19 DE DE102005033702A patent/DE102005033702A1/de not_active Withdrawn
-
2006
- 2006-07-04 EP EP06013859A patent/EP1746069B1/fr not_active Revoked
- 2006-07-04 DE DE502006008752T patent/DE502006008752D1/de active Active
- 2006-07-04 AT AT06013859T patent/ATE496000T1/de active
Non-Patent Citations (6)
Title |
---|
EXTRACT FROM BOLAGSVERKET, THE SWEDISH COMPANIES REGISTRATION OFFICE REG. WIPRO |
FULL VERSION OF THE OPERATOR'S MANUAL IN ENGLISH |
FULL VERSION OF THE OPERATOR'S MANUAL IN SWEDISH |
TRANSLATION OF THE INVOICE DLE |
TRANSLATION OF THE ORDER SPECIFICATION D1C |
TRANSLATION OF THE RENTAL OVERVIEW DLF |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9533864B2 (en) | 2014-04-30 | 2017-01-03 | Hyster-Yale Group, Inc. | Vehicle control systems and methods |
US11352243B2 (en) | 2018-09-13 | 2022-06-07 | Crown Equipment Corporation | System and method for controlling a maximum vehicle speed for an industrial vehicle based on a calculated load |
Also Published As
Publication number | Publication date |
---|---|
ATE496000T1 (de) | 2011-02-15 |
DE502006008752D1 (de) | 2011-03-03 |
EP1746069A1 (fr) | 2007-01-24 |
DE102005033702A1 (de) | 2007-01-25 |
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