Elevator emergency power systems and methods
US12136843B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Mar 4, 2022 |
| Grant date | Nov 5, 2024 |
| Priority date | — |
| Expiry date | Sep 4, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S40/121
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system to supply emergency power to an elevator includes one or more lithium batteries, an inverter coupled to the lithium batteries, a battery management system (BMS) coupled to the inverter, an Energy Management Software (EMS) coupled to the BMS, and a relay coupled to utility power, wherein the relay operates to provide utility power to the system and notifies the EMS that utility power is on, wherein the EMS initiates charging of the BMS system, wherein the BMS sends charging command to the inverter, which operates until the state of charge is 100%, where the inverter goes into a standby mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.