AUTONOMOUS TRANSPORT VEHICLE

An autonomous transport vehicle, for transporting items in a storage and retrieval system, includes a frame, a controller, at least two independently driven drive wheels mounted to the frame, and at least one caster wheel mounted to the frame and having a castering assistance motor that engages the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KEPPLE, Todd, ZAHDEH, Akram, MACDONALD, Edward
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:An autonomous transport vehicle, for transporting items in a storage and retrieval system, includes a frame, a controller, at least two independently driven drive wheels mounted to the frame, and at least one caster wheel mounted to the frame and having a castering assistance motor that engages the at least one caster wheel so as to impart castering assistance torque to the at least one caster wheel assisting castering of the at least one caster wheel. The controller is communicably connected to the castering assistance motor and configured to effect via a combination of vehicle yaw, generated by differential torque from the at least two independently driven drive wheels, and castering assistance torque from the castering assistance motor, castering of the at least one caster wheel with the autonomous transport vehicle in motion with a predetermined kinematic state.