Control apparatus for a construction machine

E - Fixed Constructions – 02 – F

Patent

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Details

E02F 3/43 (2006.01) E02F 9/20 (2006.01) E02F 9/22 (2006.01)

Patent

CA 2243266

The present invention relates to a control apparatus for a construction machine such as a hydraulic excavator, and makes it possible to make a variation of an instruction value to a hydraulic cylinder smooth even if an operation member or the like is operated suddenly upon starting of working or the like. To this end, the control apparatus for a construction machine of the present invention is applied to a construction machine wherein arms (200, 300) supported on a machine body (100) side and a working member (400) supported on the arm members (200, 300) are operated by cylinder type actuators (120 to 122), and includes operation members (6, 8) for operating the arm members (200, 300) and the working member (400), target moving velocity setting means (101) for setting a target moving velocity of the working member (400) so that a target moving velocity characteristic upon starting of an operation by the operation members (6, 8) exhibits a characteristic of the same type even if it is differentiated, and control means (1) for receiving information of the target moving velocity set by the target moving velocity setting means (101) as an input and controlling the actuators (120 to 122) so that the working member (400) may exhibit the target moving velocity.

L'invention concerne un dispositif de commande d'un engin de construction, tel qu'une pelle hydraulique, qui permet de supprimer les à-coups lors des changements de valeur de commande envoyés à un vérin hydraulique même lorsqu'un élément actif est actionné soudainement au début du travail ou similaire. Le dispositif de commande d'un engin de construction, dans lequel des bras (200, 300) supportés par ledit engin (100) et l'outil de travail (400) porté par les bras (200, 300) sont actionnés par des vérins (120, 122), présente des éléments de commande (6, 8) qui commandent les bras (200, 300) et l'outil de travail (400), des moyens de réglage de la vitesse de déplacement cible (400) qui règlent la vitesse de déplacement cible de l'outil de travail (400) de sorte que cette caractéristique reste inchangée lors du démarrage du travail par les éléments de commande (6, 8) même lorsqu'elle est différenciée, et des moyens de commande (1) pour commander les dispositifs d'actionnement (120-122) au moyen des informations relatives à la vitesse de déplacement de la cible fixée par les moyens de réglage (101) comme une entrée de sorte que l'élément de travail (400) se déplace à la vitesse de déplacement de la cible.

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