Patent · US Active

Elevator power management to augment maximum power line power

US9914617B2 · kind B2 · utility

5Cited by

12References

17Claims

0Family size

Assignee

OTIS ELEVATOR COMPANY · US

Inventors

Herbert Horbrugger · Berlin, DE
Michael Mann · Berlin, DE
Dirk H. Tegtmeier · Berlin, DE

Key dates

Filing date	Jul 18, 2012
Grant date	Mar 13, 2018
Priority date	—
Expiry date	Dec 25, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH02P4/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A system for managing elevator power includes a power line connected to a power grid, a motor connected to the power line and configured to receive power from the power line to drive an elevator, an alternative power source connected to the motor, and a power control system configured to control the power line to supply power to the motor to drive the elevator, to detect a predetermined threshold value of power supplied from the power line, and to supply both power from the power line and power from the alternative power source to the motor based on a determination that the predetermined threshold value of power is supplied from the power line.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.