Patent
Controller for elevator
Hiromi Inaba,Seiya Shima,Takeki Ando,Toshiaki Kurosawa,Yasunori Katayama,Takanobu Hatakeyama,Sadao Hokari +6 more
- 02 Sep 1982
132
TL;DR: In this paper, an elevator controller uses an acceleration command signal that has as its initial value a start shock compensation torque which will offset the unbalance torque caused at the time of starting.
read more
Abstract: An elevator controller which uses an acceleration command signal that has as its initial value a start shock compensation torque which will offset the unbalance torque caused at the time of starting. From the completion of elevator car acceleration to the start of deceleration, the acceleration command is gradually increased or decreased to control the motor (7, 8) so as to provide a smoother motion of the car (1). After the inception of the car deceleration a velocity command is issued which increases with the reducing distance between the car (1) and the destination floor.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Patent
Door lock device
Ryujiro Akizuki,Takashi Nishio,Yamada Yusuke,Sho Sannohe +3 more
- 13 Feb 2004
TL;DR: In this article, a door lock device includes an electrical drive source, which pivots a drive member from a predetermined neutral position, and a return urging member, which returns the drive member to the predetermined neutral positions.
104
Patent
AC Elevator control system
Masami Nomura
- 20 Apr 1983
TL;DR: In this paper, an AC elevator control system has a converter for converting a three-phase AC power to a direct current, an inverter for inverting the direct current to a three phase AC power with a variable voltage at a variable frequency, and a threephase induction motor for receiving the last-mentioned AC power.
67
Patent
Elevator active suspension system
Clement A. Skalski,Richard L. Hollowell,Randall K. Roberts,John K. Salmon,Boris G. Traktovenko,Sib S. Ray +5 more
- 18 Jul 1991
TL;DR: In this paper, an elevator car vertically guided along a hoistway rail has horizontal motions controlled by means of an actuator wherein horizontal acceleration of the elevator car and relative horizontal displacement between the car and the rail is sensed for controlling such horizontal motions by using the actuator.
60
Patent
Gas insulated switchgear
Daisuke Fujita,Takuya Otsuka,Hitoshi Sadakuni +2 more
- 01 Nov 2007
TL;DR: A gas-insulated switchgear comprising bushings mounted to and passing through a vessel wall of a hermetic vessel is described in this article, where the flat bushing mounting vessel walls are tilted from inside to outside relative to other portion of the wall.
50
Patent
Elevator control device
Hiroshi Araki,Shinobu Tajima,Ikuro Suga,Kazuyuki Kobayashi +3 more
- 12 Feb 2001
TL;DR: In this paper, an elevator control device includes a convertor which rectifies an a.c. power and converts it into a d.c., and an inverter which converts the d.C. power into an a c.c, and a charging/discharging control circuit which controls the charging operation or the discharging operation of the power storing unit based on the required power of the elevator.
50
References
Patent
Pinball game machine
Shohachi Ugawa,詔八 鵜川 +1 more
- 16 May 2011
TL;DR: In this paper, an annunciation device 138 makes announcements to the player suggesting a recommended shooting target of game balls on the basis of the actual game state and actual progress of the game.
374
Patent
Vehicle stopping control apparatus
George M Thorne-Booth
- 29 Nov 1967
TL;DR: In this paper, the authors describe a system for bringing to a halt a vehicle such as a train or lift cage by using a non-linear circuit, which is modified by a nonlinear circuit and then compared with the actual deceleration signal to control the drive of the vehicle.
84
Patent
Elevator speed control system
Tsuyoshi Satoh,Kenzo Tachino +1 more
- 07 Feb 1977
TL;DR: In this paper, a command acceleration pattern in the form of frequency modulated clock pulses is counted by a first and a second counter, at equal increments of speed, to calculate the distances of movement of the care which is successively stored in a random access memory at addresses determined by the speeds from the second counter.
31
Patent
AC Elevator control system
Nobuo Mitsui,Yasuyuki Maeda,Tomiaki Kurihara,Seiya Shima,Takanobu Hatakeyama,Katsu Komuro +5 more
- 06 May 1980
TL;DR: In this article, a control system for an AC elevator system in which an actual speed of an elevator car is compared with a speed command and control is made so that deviation between the actual speed and the commanded speed becomes zero.
28
Related Papers (5)
Hiroshi Ando
- 12 Jun 1987
Jack M. Brandstadter
- 30 Sep 1988
Gary Klingler,Thomas G. Reichenbach,Shunso F. Watanabe +2 more
- 14 Jan 1988