Elevator system
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United States of America Patent
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Feb 14, 1995
Grant Date -
N/A
app pub date -
Jun 24, 1992
filing date -
Jul 24, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An elevator system which is provided with power converters, electric motors supplied with power from the power converters, and a torque distributing section having functions for determining allocation of output power from the power converters on the basis of a required torque, by which an elevator is operated on the basis of functions selected in accordance with the operation mode. The system is able to save power in the elevator operation and also improve control functions and increase system capacity.
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