Patent ID: 11970369
Assignee: OTIS ELEVATOR COMPANY
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 14:
15. A method of operating an elevator system comprising:
moving, using a propulsion system, an elevator car through an elevator shaft;
powering, using a first on-board energy management system, the propulsion system; and
moving, using the propulsion system, the elevator car, and the first on-board energy management system to a station to recharge the first on-board energy management system or replace the first on-board energy management system;
using a trailing cable configured to electrically connect to a power grid to charge the first on-board energy management system, wherein the power grid is configured to charge the first on-board energy management system through the trailing cable when the first on-board energy management system is within the station and traveling horizontally between a first vertical section of the elevator shaft and a second vertical section of the elevator shaft.