Remove the Rope, Remove the Limitations

By Elevator World | March 1, 2019

thyssenkrupp’s MULTI is designed to meet the challenges of exploding urbanization. This article was first presented at the 2018 International Elevator & Escalator Symposium in Istanbul. For more information on November 2019’s event in Las Vegas and toparticipate, visit www.elevatorsymposium.org. MULTI harnesses the power of linear-motor technology to move multiple cars in a single shaft,…

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Harmonized Elevator Dispatching and Passenger Interfaces

By Elevator World | November 1, 2018

Improvements in traffic performance and user interfaces are shown in a case study on PNB 118, a 118-story building under construction in Kuala Lumpur. Introduction and Credits This article is based on an unpublished paper, “Intent of Specifications for Harmonized Dispatching — Groups of Passenger Elevators/Lifts for Office Buildings” by Barker Mohandas, LLC, and our…

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Destination: Atlanta

By Kaija Wilkinson | September 1, 2018

thyssenkrupp announces Elevator Americas Complex, its new Americas headquarters that will include the tallest test tower in the U.S. Images courtesy of thyssenkrupp When thyssenkrupp announced in spring 2016 it would install its first TWIN elevator system in North America in the 21-story Coda building in Technology Square in Atlanta (ELEVATOR WORLD, June 2016), it…

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Can a Motor Drive Harm an Elevator or Escalator System?

By Elevator World | August 1, 2018

Testing to reduce high-frequency currents produced by VFDs and DC controllers is conducted. Most modern elevator electric motors run via a variable-frequency drive (VFD) for AC motors and a DC controller (usually silicon-controlled-rectifier [SCR] based but, more recently for DC motors, insulated-gate-bipolar-transistor [IGBT] based) to control motor/elevator speed. Motor controllers save up to 55% in…

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The Space Elevator

By Elevator World | July 1, 2018

Ninth Symposium on Lift & Escalator Technologies will be reaching for greater heights in September. Editor’s Note: Dr. Bryan Laubscher of The International Space Elevator Consortium (ISEC) will be the keynote speaker at the ninth Symposium on Lift and Escalator Technologies, taking place in September, and at a University of Northampton (UoN) open lecture the…

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How Biodegradable Oils Function in Hydraulic Environments

By Doug Muennich | June 1, 2018

Various popular fluids are examined, trouble signs are identified, and solutions are given. By Mark Kreitzburg and Doug Muennich The negative environmental effects of using petroleum and other nonbiodegradable lubricants have been uncovered, and the awareness is spreading. For most industries, it is unavoidable and important. However, newly engineered “eco-friendly” biodegradable lubricants have been expertly…

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Jerk-Free Takeoff With Pulsed Pre-Torque Drive Software

By Peter Stipan, Garry Anderson and John Backman | October 1, 2017

New method and system for reducing rollback senses needed pre-torque before the mechanical brake is released, resulting in a smooth start. by Peter Stipan, Garry Anderson and John Backman Magnetek took up the challenge of creating the smoothest elevator ride possible, despite the fact that every run of an elevator car has a unique load.…

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The Power – and Power Savings – of PMS Technology with Regenerative Drives

By Elevator World | August 1, 2017

In the last decades of the 20th century, microprocessor controls replaced conventional relay controls, and AC variable-voltage drive systems were upgraded with AC VV, variable-frequeny technology. However, one of the most profound advancements in the elevator industry is the ever-increasing application of permanent magnet-synchronous (PMS) gearless traction machines. The AC gearless PMS machine has the…

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An Effective Energy-Saving Elevator

By K. Takasaki, R. Ootsubo, J. Takeda and S. Nojima | July 1, 2016

How growing demand for a power-storage battery for elevators combined with a control system can be met by K. Takasaki, R. Ootsubo, J. Takeda and S. Nojima Designers in various industrial areas have been tackling energy-saving and environmentally friendly production, which need urgent attention in realizing a sustainable society. The same goes for elevators, and…

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Modern Information Systems for Elevators

By Elevator World | April 1, 2016

Products can help create a more user-friendly experience for owners, operators and users. Members of today’s society use smartphones and tablet PCs everywhere, and expect similar user interfaces from other appliances and machines. Not only is the industry prompted to use high-definition, thin-film-transistor (TFT) displays in an increasing number of applications, the displays must also…

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Elevator World | January 2022 Cover