ELECTRICAL STEERING ASSIST FOR MATERIAL HANDLING VEHICLES

ELECTRICAL STEERING ASSIST FOR MATERIAL HANDLING VEHICLES

Electrical steering assist systems reduce the operator applied steering effort necessary to operate material handling vehicles. A steer drive unit including a motor is coupled to a steerable wheel for providing steering assist. The amount of steering assist provided by the steer drive unit is determ...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WETTERER GEORGE R, GILLILAND KEVIN A, SNYDER RHETT E, MANCI LEWIS H, KOEPER JOHN I
Format: Patent
Sprache:eng
Schlagworte:
HAND-PROPELLED VEHICLES, e.g. HAND CARTS, PERAMBULATORS
HAULING
HOISTING
HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
LIFTING
MOTOR VEHICLES
PERFORMING OPERATIONS
SLEDGES
TRAILERS
TRANSPORTING
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Beschreibung
Zusammenfassung:Electrical steering assist systems reduce the operator applied steering effort necessary to operate material handling vehicles. A steer drive unit including a motor is coupled to a steerable wheel for providing steering assist. The amount of steering assist provided by the steer drive unit is determined by a controller that receives input from one or more input sensing devices. The input sensing device(s) may include force sensors that detect an operator applied turning force. The input sensing device(s) may also detect the movement of one steering component relative to another. Further, the input sensing device(s) may include operator activated controls such as a joystick, potentiometer, switches and voice initiated commands. Input sensing device(s) may additionally be provided to detect operational parameters such as the load on the material handling vehicle, vehicle speed, or environmental conditions such as travel path obstruction detection, homing and proximity sensing.