A materials handling vehicle with a module capable of...

B - Operations – Transporting – 66 – F

Patent

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Details

B66F 9/075 (2006.01)

Patent

CA 2713344

A materials handling vehicle (10) is provided comprising: a frame (20) comprising an operator's compartment (30); wheels supported on the frame, at least one of the wheels being a steerable wheel (74); a steer-by-wire system (80) associated with the steerable wheel to effect angular movement of the steerable wheel about a first axis; and a control apparatus. The control apparatus is coupled to the control handle (90) to receive the steer control signal, coupled to the selection switch (98) to receive the one select signal, and coupled to the steer motor to generate a first drive signal to the steer motor (120) to effect angular movement of the steerable wheel about the first axis. The control apparatus converts the steer control signal to a corresponding desired angular position for the steerable wheel using one of first and second steerable-wheel-to-control- handle-position ratios, wherein the one ratio is selected based on the one select signal.

L'invention porte sur un véhicule de manipulation de matériaux (10) comprenant : un châssis (20) comprenant un compartiment d'opérateur (30) ; des roues supportées sur le châssis, au moins l'une des roues étant une roue orientable (74) ; un système de direction à commande électrique (80) associé à la roue orientable pour effectuer un mouvement angulaire de la roue orientable autour d'un premier axe ; et un appareil de commande. L'appareil de commande est couplé à la poignée de commande (90) pour recevoir le signal de commande de direction, couplé au commutateur de sélection (98) pour recevoir le signal de sélection, et couplé au moteur de direction pour générer un premier signal d'entraînement vers le moteur de direction (120) pour effectuer un mouvement angulaire de la roue orientable autour du premier axe. L'appareil de commande convertit le signal de commande de direction en une position angulaire désirée correspondante pour la roue orientable à l'aide de l'un de premier et second rapports roue orientable à position de poignée de commande, le rapport étant choisi sur la base du signal de sélection.

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