Magnemotion, Inc.

P Eric Malkowski

Brian M Perreault

Jason Young

Michael F Onorato

Control of Linear Synchronous Motors involves a number of low level issues of motor control&#x2014;such as sensing precise position, controlling current in stator windings, and obeying commands from high level controllers&#x2014;and high level vehicle control&#x2014;such as stopping and starting, switching and merging, limiting speed and acceleration, synchronizing relative motion, preventing collisions and accidents, and dealing with failures. In most cases there is a master controller that directs vehicles based on simple commands but in other cases it is desirable to allow an external agent to provide more detailed control&#x2014;such as synchronizing motion between a vehicle and a robot or allowing human operator control. This patent describes a versatile control scheme that allows both simplified high level control and, when or where necessary, control by an external agent. The result is a transport system and method that provides efficient and precise movement of vehicles on a guideway.

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Lancaster, MA, United States of America

P Eric Malkowski