EP1558980A1 - Control handle for electrohydraulic device - Google Patents

Control handle for electrohydraulic device

Info

Publication number
EP1558980A1
EP1558980A1 EP03782515A EP03782515A EP1558980A1 EP 1558980 A1 EP1558980 A1 EP 1558980A1 EP 03782515 A EP03782515 A EP 03782515A EP 03782515 A EP03782515 A EP 03782515A EP 1558980 A1 EP1558980 A1 EP 1558980A1
Authority
EP
European Patent Office
Prior art keywords
control handle
cursor
power
setpoint
signal
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
Application number
EP03782515A
Other languages
German (de)
French (fr)
Other versions
EP1558980B1 (en
Inventor
Didier Merletti
Xavier Roussin
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.)
Bosch Rexroth DSI SAS
Original Assignee
Bosch Rexroth DSI SAS
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 Bosch Rexroth DSI SAS filed Critical Bosch Rexroth DSI SAS
Publication of EP1558980A1 publication Critical patent/EP1558980A1/en
Application granted granted Critical
Publication of EP1558980B1 publication Critical patent/EP1558980B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2004—Control mechanisms, e.g. control levers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G9/04785—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks the controlling member being the operating part of a switch arrangement
    • G05G9/04788—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks the controlling member being the operating part of a switch arrangement comprising additional control elements
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G2009/04774—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks with additional switches or sensors on the handle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20012—Multiple controlled elements
    • Y10T74/20201—Control moves in two planes

Definitions

  • the present invention relates to a control handle for a manipulator intended to control at least one electro-hydraulic device.
  • the invention relates to the control handles installed on board public works vehicles to control at least one of the movements of these vehicles.
  • the control handles usually encountered include:
  • At least one setpoint generator comprising generator means for delivering a setpoint signal and which are located in the cavity of the envelope, and cursor means which are located on the surface of the envelope and which are intended to be actuated by an operator, the value of the setpoint signal delivered being in relation to the movement of the means forming a cursor for controlling the electrohydraulic device.
  • the setpoint signal delivered by the setpoint generator is too weak to be usable as it is in controlling the electrohydraulic device. It is therefore necessary to install an electronic stage intermediate between the control handle and the electrohydraulic device to transform the setpoint signal into a power signal which can control said device.
  • Such an intermediate electronic stage is commonly directly located in the vicinity of the electro-hydraulic device, or else located in any position, on board the machine, between the control handle usually located in the operator's cabin, and the electro-hydraulic device. for example located in the vicinity of rotating parts of the machine.
  • the electrohydraulic devices are located in locations where the constraints of temperature, humidity, oil spray, or even vibrations are high.
  • the intermediate electronic card is exposed to the same constraints so that the operation of the assembly can be affected.
  • the setpoint signal generated by the control handle must be transported to the location of the electronic card. intermediate.
  • the power of the setpoint signal being weak, this signal can be affected by electromagnetic disturbances during its transport.
  • the control of the electrohydraulic device can thus be affected.
  • the present invention aims in particular to remedy these drawbacks by providing a control handle which makes it possible to increase the reliability of the control of the electrohydraulic device and this, by simple, efficient and inexpensive means.
  • a control handle of the type in question is essentially characterized in that the handle further comprises an electronic power card which is integrated in the cavity of the envelope, this card converting the signal from setpoint in a power signal whose power is greater than the power of the setpoint signal and which is intended to be delivered to the electrohydraulic device.
  • the control handle directly delivers a power signal to the electrohydraulic device located downstream, this power signal not being affected by the electromagnetic disturbances generated on board the public works vehicle.
  • the control handle being located on board the operator's cabin of the machine, it is subjected to lower stresses.
  • the movement of the cursor-forming means of the setpoint generator is independent of the movement of the handle.
  • the displacement of the means forming the cursor is advantageously linear
  • the movement of the means forming the cursor is rotary.
  • the value of the setpoint signal is proportional to the movement of the cursor means.
  • the electrohydraulic device comprises a pressure reducer.
  • the power signal delivered by the handle is of the pulse width modulation type.
  • FIG. 1 is a schematic view of a control handle according to the present invention connected for example to two electro-hydraulic devices.
  • FIG 2 is a longitudinal sectional view of the handle of Figure 1 according to the present invention.
  • the control handle 1 shown in the figures is a handle more particularly intended to be mounted on the manipulators of public works machines. These manipulators are generally intended to control fluid dispensing devices 2 known in themselves and which are commonly encountered on board public works vehicles to control the movements of these vehicles.
  • the control of the fluid distributor 2 is for example carried out by means of electro-hydraulic devices 3 and 4.
  • the manipulators commonly encountered are hydraulic but can also be electronic.
  • the electrohydraulic devices 3 and 4 can for example be pressure reducers controlled by a solenoid.
  • these reducers each receive a power signal Pi and P 2 which are directly supplied to them by the control handle 1.
  • the control handle 1 consists of manner known per se of an envelope 5 which internally delimits a cavity 6.
  • This envelope generally takes the form of a shell whose shape is ergonomic to be easily manipulated by the operator.
  • the control handle 1 generally comprises a setpoint generator 7 which has, on the one hand, generator means 8 capable of delivering a setpoint signal and, on the other hand, cursor means 9 which are intended to be actuated by the operator of the public works vehicle on which the handle is installed.
  • the setpoint generating means 8 are located inside the shell 5, in the cavity 6, and deliver a setpoint signal through a cable 10.
  • the slider means 9 are located outside the cavity 6, on the surface of the casing 5, and are actuated by the operator to modulate the setpoint signal.
  • the cursor means 9 are generally moved independently of the general movement of the handle 1.
  • the cursor means 9 have for example a rotational movement.
  • these cursor means can have a linear movement.
  • the value of the setpoint signal is proportional to the movement of the cursor means 9.
  • the control handle 1 also comprises an electronic power card 15 which converts the signal setpoint in a power signal Pi or P 2 which is delivered to the electro-hydraulic devices 3 and 4.
  • the electronic power card 15 is directly located in the cavity 6 of the casing 5, downstream of the setpoint generator 7 and delivers the power signal through a power cable 16 which extends from the envelope 5, towards the pressure reducers 3 and 4 located in the vicinity of the moving parts of the public works machine.
  • the electronic power card 15 increases the power of the setpoint signal delivered by the setpoint generator 7 so that the power signal leaving the handle 1 through the power cable 16 is directly usable for controlling the electrohydraulic devices located downstream .
  • the control handle 1 according to the present invention therefore makes it possible to generate a power signal which is not affected by electromagnetic disturbances.
  • the electronic power card 15 is protected by the envelope 5 of the handle 1 which is itself located in the operator's cabin in which less restrictive conditions prevail.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Control Devices (AREA)
  • Manipulator (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Control Of Eletrric Generators (AREA)
  • Feedback Control In General (AREA)

Abstract

The invention relates to a manipulator control handle which is intended to control at least one electrohydraulic device. The inventive handle consists of: a casing (5) defining a cavity (6) therein; at least one set point generator comprising generator means (8) which are used to deliver a set point signal and which are disposed in the cavity of the casing; and cursor-forming means (9) which are disposed on the surface of the casing and which are intended to be actuated by an operator. According to the invention, the value of the set point signal delivered is related to the movement of the cursor-forming means in order to control the electrohydraulic device. The handle also comprises an electronic power board (15) which is built into the cavity of the casing and which converts the set point signal into a power signal with a power greater than that of the set point signal, said power signal being delivered to the electrohydraulic device.

Description

Poignée de commande pour dispositif électrohydraulique Control handle for electrohydraulic device
La présente invention est relative à une poignée de commande pour manipulateur destinée à commander au moins un dispositif électrohydraulique.The present invention relates to a control handle for a manipulator intended to control at least one electro-hydraulic device.
Plus particulièrement, mais non exclusivement, l'invention concerne les poignées de commande installées à bord des engins de travaux publics pour commander au moins l'un des mouvements de ces engins.More particularly, but not exclusively, the invention relates to the control handles installed on board public works vehicles to control at least one of the movements of these vehicles.
Les poignées de commande habituellement rencontrées comprennent :The control handles usually encountered include:
- une enveloppe qui délimite intérieurement une cavité,- an envelope which internally delimits a cavity,
- au moins un générateur de consigne comportant des moyens générateurs pour délivrer un signal de consigne et qui sont situés dans la cavité de l'enveloppe, et des moyens formant curseur qui sont situés à la surface de l'enveloppe et qui sont destinés à être actionnés par un opérateur, la valeur du signal de consigne délivré étant en relation avec le déplacement des moyens formant curseur pour commander le dispositif électrohydraulique.- at least one setpoint generator comprising generator means for delivering a setpoint signal and which are located in the cavity of the envelope, and cursor means which are located on the surface of the envelope and which are intended to be actuated by an operator, the value of the setpoint signal delivered being in relation to the movement of the means forming a cursor for controlling the electrohydraulic device.
Le signal de consigne délivré par le générateur de consigne est d'une puissance trop faible pour être utilisable en l'état dans la commande du dispositif électrohydraulique. Il est donc nécessaire d'implanter un étage électronique intermédiaire entre la poignée de commande et le dispositif électrohydraulique pour transformer le signal de consigne en un signal de puissance qui peut commander ledit dispositif.The setpoint signal delivered by the setpoint generator is too weak to be usable as it is in controlling the electrohydraulic device. It is therefore necessary to install an electronic stage intermediate between the control handle and the electrohydraulic device to transform the setpoint signal into a power signal which can control said device.
Un tel étage électronique intermédiaire est couramment directement implanté au voisinage du dispositif électrohydraulique, ou bien encore localisé en une position quelconque, à bord de l'engin, entre la poignée de commande habituellement située dans la cabine de l'opérateur, et le dispositif électrohydraulique par exemple implanté au voisinage de pièces tournantes de l'engin. Or, les dispositifs électrohydrauliques sont localisés en des emplacements où les contraintes de température, d'humidité, de projection d'huile, ou bien encore de vibrations sont élevées. La carte électronique intermédiaire est exposée aux mêmes contraintes de sorte que le fonctionnement de l'ensemble peut être affecté. De plus, le signal de consigne généré par la poignée de commande doit être transporté jusqu'à l'emplacement de la carte électronique intermédiaire. La puissance du signal de consigne étant faible, ce signal peut être affecté par les perturbations électromagnétiques au cours de son transport. La commande du dispositif électrohydraulique peut ainsi être affectée. La présente invention a notamment pour but de remédier à ces inconvénients en fournissant une poignée de commande qui permet d'augmenter la fiabilité de la commande du dispositif électrohydraulique et ce, par des moyens simples, efficaces et peu coûteux.Such an intermediate electronic stage is commonly directly located in the vicinity of the electro-hydraulic device, or else located in any position, on board the machine, between the control handle usually located in the operator's cabin, and the electro-hydraulic device. for example located in the vicinity of rotating parts of the machine. However, the electrohydraulic devices are located in locations where the constraints of temperature, humidity, oil spray, or even vibrations are high. The intermediate electronic card is exposed to the same constraints so that the operation of the assembly can be affected. In addition, the setpoint signal generated by the control handle must be transported to the location of the electronic card. intermediate. The power of the setpoint signal being weak, this signal can be affected by electromagnetic disturbances during its transport. The control of the electrohydraulic device can thus be affected. The present invention aims in particular to remedy these drawbacks by providing a control handle which makes it possible to increase the reliability of the control of the electrohydraulic device and this, by simple, efficient and inexpensive means.
A cet effet, selon l'invention, une poignée de commande du genre en question est essentiellement caractérisée en ce que la poignée comprend en outre une carte électronique de puissance qui est intégrée dans la cavité de l'enveloppe, cette carte convertissant le signal de consigne en un signal de puissance dont la puissance est supérieure à la puissance du signal de consigne et qui est destinée à être délivrée au dispositif électrohydraulique. Ainsi, grâce à ces dispositions, la poignée de commande délivre directement un signal de puissance au dispositif électrohydraulique situé en aval, ce signal de puissance n'étant pas affecté par les perturbations électromagnétiques générées à bord de l'engin de travaux publics. De plus, la poignée de commande étant implantée à bord de la cabine de l'opérateur de l'engin, elle subit des contraintes plus faibles.To this end, according to the invention, a control handle of the type in question is essentially characterized in that the handle further comprises an electronic power card which is integrated in the cavity of the envelope, this card converting the signal from setpoint in a power signal whose power is greater than the power of the setpoint signal and which is intended to be delivered to the electrohydraulic device. Thus, thanks to these provisions, the control handle directly delivers a power signal to the electrohydraulic device located downstream, this power signal not being affected by the electromagnetic disturbances generated on board the public works vehicle. In addition, the control handle being located on board the operator's cabin of the machine, it is subjected to lower stresses.
Dans un mode de réalisation préféré de l'invention, le déplacement des moyens formant curseur du générateur de consigne est indépendant du mouvement de la poignée.In a preferred embodiment of the invention, the movement of the cursor-forming means of the setpoint generator is independent of the movement of the handle.
Le déplacement des moyens formant curseur est avantageusement linéaire,The displacement of the means forming the cursor is advantageously linear,
En variante, le déplacement des moyens formant curseur est rotatif.As a variant, the movement of the means forming the cursor is rotary.
De manière préférée, la valeur du signal de consigne est proportionnelle au déplacement des moyens formant curseur. Dans encore une autre variante, le dispositif électrohydraulique comprend un réducteur de pression.Preferably, the value of the setpoint signal is proportional to the movement of the cursor means. In yet another variant, the electrohydraulic device comprises a pressure reducer.
Avantageusement, le signal de puissance délivré par la poignée est du type à modulation d'impulsions en largeur.Advantageously, the power signal delivered by the handle is of the pulse width modulation type.
En variante, le signal de puissance délivré par la poignée est du type à superposition imposée. D'autres caractéristiques et avantages de l'invention apparaîtront au cours de la description suivante de l'une de ses formes de réalisation, donnée à titre d'exemple non limitatif, en regard des dessins joints, sur lesquels : La figure 1 est une vue schématique d'une poignée de commande selon la présente invention reliée par exemple à deux dispositifs électrohydrauliques.Alternatively, the power signal delivered by the handle is of the imposed superposition type. Other characteristics and advantages of the invention will appear during the following description of one of its embodiments, given by way of nonlimiting example, with reference to the accompanying drawings, in which: FIG. 1 is a schematic view of a control handle according to the present invention connected for example to two electro-hydraulic devices.
La figure 2 est une vue en coupe longitudinale de la poignée de la figure 1 selon la présente invention. La poignée de commande 1 représentée aux figures est une poignée plus particulièrement destinée à être montée sur les manipulateurs des engins de travaux publics. Ces manipulateurs sont généralement destinés à commander des dispositifs distributeurs de fluide 2 connus en eux-mêmes et qui sont couramment rencontrés à bord des engins de travaux publics pour commander les mouvements de ces engins.Figure 2 is a longitudinal sectional view of the handle of Figure 1 according to the present invention. The control handle 1 shown in the figures is a handle more particularly intended to be mounted on the manipulators of public works machines. These manipulators are generally intended to control fluid dispensing devices 2 known in themselves and which are commonly encountered on board public works vehicles to control the movements of these vehicles.
La commande du distributeur de fluide 2 est par exemple réalisée par l'intermédiaire de dispositifs électrohydrauliques 3 et 4.The control of the fluid distributor 2 is for example carried out by means of electro-hydraulic devices 3 and 4.
Les manipulateurs couramment rencontrés sont hydrauliques mais peuvent également être électroniques. Les dispositifs électrohydrauliques 3 et 4 peuvent par exemple être des réducteurs de pression commandés par un solénoïde.The manipulators commonly encountered are hydraulic but can also be electronic. The electrohydraulic devices 3 and 4 can for example be pressure reducers controlled by a solenoid.
Selon une caractéristique essentielle de la présente invention, ces réducteurs reçoivent chacun un signal de puissance P-i et P2 qui leur sont directement fourni par la poignée de commande 1. Comme le montre plus particulièrement la figure 2, la poignée de commande 1 est constituée de manière connue en soi d'une enveloppe 5 qui délimite intérieurement une cavité 6. Cette enveloppe prend la forme généralement d'une coque dont la forme est ergonomique pour être facilement manipulée par l'opérateur. La poignée de commande 1 comporte généralement un générateur de consigne 7 qui possède, d'une part, des moyens générateurs 8 aptes à délivrer un signal de consigne et, d'autre part, des moyens formant curseur 9 qui sont destinés à être actionnés par l'opérateur de l'engin de travaux publics à bord duquel est installée la poignée. Les moyens générateurs de consigne 8 sont situés à l'intérieur de la coque 5, dans la cavité 6, et délivrent un signal de consigne au travers d'un câble 10. Les moyens formant curseur 9 sont situés à l'extérieur de la cavité 6, en surface de l'enveloppe 5, et sont actionnés par l'opérateur pour moduler le signal de consigne. Les moyens formant curseur 9 sont généralement déplacés de manière indépendante au mouvement général de la poignée 1. Dans le mode de réalisation représenté, les moyens formant curseur 9 ont par exemple un mouvement de rotation. En variante, ces moyens formant curseur peuvent avoir un mouvement linéaire.According to an essential characteristic of the present invention, these reducers each receive a power signal Pi and P 2 which are directly supplied to them by the control handle 1. As shown more particularly in FIG. 2, the control handle 1 consists of manner known per se of an envelope 5 which internally delimits a cavity 6. This envelope generally takes the form of a shell whose shape is ergonomic to be easily manipulated by the operator. The control handle 1 generally comprises a setpoint generator 7 which has, on the one hand, generator means 8 capable of delivering a setpoint signal and, on the other hand, cursor means 9 which are intended to be actuated by the operator of the public works vehicle on which the handle is installed. The setpoint generating means 8 are located inside the shell 5, in the cavity 6, and deliver a setpoint signal through a cable 10. The slider means 9 are located outside the cavity 6, on the surface of the casing 5, and are actuated by the operator to modulate the setpoint signal. The cursor means 9 are generally moved independently of the general movement of the handle 1. In the embodiment shown, the cursor means 9 have for example a rotational movement. As a variant, these cursor means can have a linear movement.
De manière encore connue en soi, la valeur du signal de consigne est proportionnelle au déplacement des moyens formant curseur 9. Selon une caractéristique essentielle de la présente invention, la poignée de commande 1 comprend en outre une carte électronique de puissance 15 qui convertit le signal de consigne en un signal de puissance P-i ou P2 qui est délivré aux dispositifs électrohydrauliques 3 et 4.In a manner still known per se, the value of the setpoint signal is proportional to the movement of the cursor means 9. According to an essential characteristic of the present invention, the control handle 1 also comprises an electronic power card 15 which converts the signal setpoint in a power signal Pi or P 2 which is delivered to the electro-hydraulic devices 3 and 4.
La carte électronique de puissance 15 est directement implantée dans la cavité 6 de l'enveloppe 5, en aval du générateur de consigne 7 et délivre le signal de puissance au travers d'un câble de puissance 16 qui s'étend à partir de l'enveloppe 5, en direction des réducteurs de pression 3 et 4 implantés au voisinage des parties en mouvement de l'engin de travaux publics. La carte électronique de puissance 15 augmente la puissance du signal de consigne délivré par le générateur de consigne 7 de sorte que le signal de puissance sortant de la poignée 1 au travers du câble de puissance 16 est directement utilisable pour commander les dispositifs électrohydrauliques situés en aval. La poignée de commande 1 selon la présente invention permet donc de générer un signal de puissance qui n'est pas affecté par des perturbations électromagnétiques. En outre, la carte électronique de puissance 15 est protégée par l'enveloppe 5 de la poignée 1 qui est elle-même implantée dans la cabine de l'opérateur dans laquelle régnent des conditions moins contraignantes.The electronic power card 15 is directly located in the cavity 6 of the casing 5, downstream of the setpoint generator 7 and delivers the power signal through a power cable 16 which extends from the envelope 5, towards the pressure reducers 3 and 4 located in the vicinity of the moving parts of the public works machine. The electronic power card 15 increases the power of the setpoint signal delivered by the setpoint generator 7 so that the power signal leaving the handle 1 through the power cable 16 is directly usable for controlling the electrohydraulic devices located downstream . The control handle 1 according to the present invention therefore makes it possible to generate a power signal which is not affected by electromagnetic disturbances. In addition, the electronic power card 15 is protected by the envelope 5 of the handle 1 which is itself located in the operator's cabin in which less restrictive conditions prevail.
Bien entendu, l'invention n'est pas limitée à l'exemple décrit ci- dessus et diverses modifications peuvent y être apportées sans sortir du cadre de la présente invention. Of course, the invention is not limited to the example described above and various modifications can be made without departing from the scope of the present invention.

Claims

REVENDICATIONS
1. Poignée de commande pour manipulateur, destinée à commander au moins un dispositif électrohydraulique (3, 4), notamment pour engin de travaux publics, comprenant :1. Control handle for a manipulator, intended to control at least one electro-hydraulic device (3, 4), in particular for public works machinery, comprising:
- une enveloppe (5) qui délimite intérieurement une cavité (6),- an envelope (5) which internally delimits a cavity (6),
- au moins un générateur de consigne comportant des moyens générateurs (8) pour délivrer un signal de consigne et qui sont situés dans la cavité de l'enveloppe, et des moyens formant curseur (9) qui sont situés à la surface de l'enveloppe et qui sont destinés à être actionnés par un opérateur, la valeur du signal de consigne délivré étant en relation avec le déplacement des moyens formant curseur (9) pour commander le dispositif électrohydraulique (3, 4), caractérisée en ce que la poignée comprend en outre une carte électronique de puissance (15) qui est intégrée dans la cavité (6) de l'enveloppe (5), cette carte (15) convertissant le signal de consigne en un signal de puissance dont la puissance est supérieure à la puissance du signal de consigne et qui est destiné à être délivré au dispositif électrohydraulique (3, 4).- at least one setpoint generator comprising generating means (8) for delivering a setpoint signal and which are located in the cavity of the envelope, and cursor means (9) which are located on the surface of the envelope and which are intended to be actuated by an operator, the value of the setpoint signal delivered being in relation to the displacement of the means forming a cursor (9) for controlling the electrohydraulic device (3, 4), characterized in that the handle comprises in in addition to an electronic power card (15) which is integrated in the cavity (6) of the envelope (5), this card (15) converting the setpoint signal into a power signal whose power is greater than the power of the setpoint signal and which is intended to be delivered to the electro-hydraulic device (3, 4).
2. Poignée de commande selon la revendication 1 , caractérisée en ce que le déplacement des moyens formant curseur (9) du générateur (7) de consigne est indépendant du mouvement de la poignée (1).2. Control handle according to claim 1, characterized in that the movement of the cursor means (9) of the generator (7) setpoint is independent of the movement of the handle (1).
3. Poignée de commande selon la revendication 1 ou 2, caractérisée en ce que le déplacement des moyens formant curseur (9) est linéaire. 3. Control handle according to claim 1 or 2, characterized in that the movement of the cursor means (9) is linear.
4. Poignée de commande selon la revendication 1 ou 2, caractérisée en ce que le déplacement des moyens formant curseur (9) est rotatif.4. Control handle according to claim 1 or 2, characterized in that the movement of the cursor means (9) is rotatable.
5. Poignée de commande selon l'une quelconque des revendications 1 à 4, caractérisée en ce que la valeur du signal de consigne est proportionnelle au déplacement des moyens formant curseur (9).5. Control handle according to any one of claims 1 to 4, characterized in that the value of the setpoint signal is proportional to the movement of the means forming cursor (9).
6. Poignée de commande selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le dispositif électrohydraulique (3, 4) comprend un réducteur de pression.6. Control handle according to any one of claims 1 to 5, characterized in that the electro-hydraulic device (3, 4) comprises a pressure reducer.
7. Poignée de commande selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le signal de puissance délivré par la poignée (1) est du type à modulation d'impulsions en largeur. 7. Control handle according to any one of claims 1 to 6, characterized in that the power signal delivered by the handle (1) is of the pulse width modulation type.
8. Poignée de commande selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le signal de puissance délivré par la poignée (1) est du type à superposition imposée. 8. Control handle according to any one of claims 1 to 6, characterized in that the power signal delivered by the handle (1) is of the type with imposed superposition.
EP03782515A 2002-11-07 2003-11-05 Control handle for electrohydraulic device Expired - Lifetime EP1558980B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0213944 2002-11-07
FR0213944A FR2847068A1 (en) 2002-11-07 2002-11-07 Public works machine movement control handle, having envelope with internal cavity and value setting generator with integrated electronics power card converting set value power signal/sending electrohydraulic mechanism
PCT/FR2003/003304 WO2004044669A1 (en) 2002-11-07 2003-11-05 Control handle for electrohydraulic device

Publications (2)

Publication Number Publication Date
EP1558980A1 true EP1558980A1 (en) 2005-08-03
EP1558980B1 EP1558980B1 (en) 2007-04-25

Family

ID=32116446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03782515A Expired - Lifetime EP1558980B1 (en) 2002-11-07 2003-11-05 Control handle for electrohydraulic device

Country Status (8)

Country Link
US (1) US20060053925A1 (en)
EP (1) EP1558980B1 (en)
JP (1) JP2006509640A (en)
AT (1) ATE360848T1 (en)
AU (1) AU2003290152A1 (en)
DE (1) DE60313485T2 (en)
FR (1) FR2847068A1 (en)
WO (1) WO2004044669A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2905482B1 (en) * 2006-09-05 2009-07-03 Bosch Rexroth D S I Soc Par Ac HANDLE FOR A MOBILE DEVICE REMOTE CONTROL, IN PARTICULAR A PUBLIC WORKS EQUIPMENT, AGRICULTURAL OR HANDLING ENGINE.
CN103617900B (en) * 2013-11-07 2015-12-02 中联重科股份有限公司 Handle safe operation control method, Apparatus and system
US10301009B2 (en) * 2016-08-26 2019-05-28 Kitty Hawk Corporation Aircraft hand controller with decoupled throttle
US11268262B2 (en) 2020-02-11 2022-03-08 Cnh Industrial America Llc Interchangeable multi-function handle for a work vehicle

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Publication number Priority date Publication date Assignee Title
US4386553A (en) * 1980-10-27 1983-06-07 The Bendix Corporation Control system for doser actuator
DE4109233A1 (en) * 1991-03-21 1992-09-24 Rexroth Mannesmann Gmbh DIGITAL CONTROL ELECTRONICS WITH PULSE WIDTH MODULATED (PWM) OUTPUT SIGNAL FOR CONTROLLING ELECTRICAL ACTUATORS OF A HYDRAULIC SYSTEM
US5293900A (en) * 1992-09-30 1994-03-15 Hydro Electronic Devices Inc. (Hed) Joystick with contactless direct drive device
US5675609A (en) * 1995-05-26 1997-10-07 Dakota Research, Inc. Sinusoidal pulse and pulse train signaling apparatus
USH1831H (en) * 1998-12-18 2000-02-01 Caterpillar Inc. Ergonomic motor grader vehicle control apparatus
JP3664665B2 (en) * 2001-06-01 2005-06-29 株式会社カワサキプレシジョンマシナリ Joystick device

Non-Patent Citations (1)

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Title
See references of WO2004044669A1 *

Also Published As

Publication number Publication date
AU2003290152A1 (en) 2004-06-03
EP1558980B1 (en) 2007-04-25
JP2006509640A (en) 2006-03-23
US20060053925A1 (en) 2006-03-16
DE60313485T2 (en) 2007-09-06
WO2004044669A1 (en) 2004-05-27
DE60313485D1 (en) 2007-06-06
ATE360848T1 (en) 2007-05-15
FR2847068A1 (en) 2004-05-14

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