2004 Volume 124 Issue 8 Pages 679-687
The history of traction drive elevators in Japan is described. The electrical technologies such as the microprocessor car control and the VVVF motor control made remarkable progress leading to higher reliability and energy savings. Then, the various machine-room-less elevators have been developed and the space saving technology, such as the shuttle and the double-deck elevators become important, too. The elevators used for evacuation in case of emergencies are also discussed.
The transactions of the Institute of Electrical Engineers of Japan.A
The Journal of the Institute of Electrical Engineers of Japan