SYSTEMS AND METHODS FOR DETERMINING FIELD ORIENTATION OF MAGNETIC COMPONENTS IN A ROPELESS ELEVATOR SYSTEM

摘要

A ropeless elevator system, a propulsion system, and a method for operating a ropeless propulsion system are disclosed. The ropeless elevator system may include an elevator car, a hoistway in which the elevator car travels, and a ropeless propulsion system. The ropeless propulsion system may include electrical windings energized by a power source, the electrical windings affixed to a stationary structure, the stationary structure associated with the hoistway, and a magnet, the magnet affixed to a moving structure, the moving structure associated with the elevator car, and interaction between the electrical windings and the magnet generates a thrust force on the elevator car traveling in the hoistway. The ropeless elevator system may further include an array of Hall effect sensors, the array of Hall effect sensors determining a sensed magnetic field, the sensed magnetic field being associated with electrical currents carried by the windings and used to determine a magnetic field orientation of the electrical currents carried by the windings with respect to the magnet.

主权项

1. A ropeless elevator system (20) comprising:
an elevator car (24); a hoistway 22 in which the elevator car (24) travels; a ropeless propulsion system (50), the ropeless propulsion system (50) comprising:
electrical windings (60) energized by a power source (68), the electrical windings (60) affixed to a stationary structure (54), the stationary structure (54) associated with the hoistway (22); anda magnet (58), the magnet (58) affixed to a moving structure (52), the moving structure (52) associated with the elevator car (24), and interaction between the electrical windings (60) and the magnet (58) generates a thrust force on the elevator car (24) traveling in the hoistway (22); and an array of Hall effect sensors (81), the array of Hall effect sensors (81) determining a sensed magnetic field, the sensed magnetic field being associated with electrical currents carried by the windings (60) and used to determine a magnetic field orientation of the electrical currents carried by the windings (60) with respect to the magnet 58.