Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : elevator


Performance Improvement of a Conventional Hydraulic Elevator by Using Electro-Hydraulic Servo Mechanism

Jamal AK. Mohammed; Walaa M. Hashim; Bahaa S. Beram

Engineering and Technology Journal, 2020, Volume 38, Issue 5, Pages 748-760
DOI: 10.30684/etj.v38i5A.367

An electro-hydraulic elevator is a new type of enhanced elevators that are used in low-rise buildings that do not exceed more than three floors. In this paper, an electro-hydraulic servo system for controlling the speed of a hydraulic elevator prototype by using a proportional valve and PID controller was investigated theoretically and experimentally. A three floors elevator prototype model with 76cm height was built including hydraulics components and electrical components. The elevator system is fully automated using the Arduino UNO board based Data Acquisition (DAQ) system. LabVIEW software is used to control the hydraulic elevator system through L298 DC drive via the DAQ board. The best PID gains was obtained experimentally. The elevator system prototype could be emplimented for educational purposes; such as learning the undergraduate students in the Electromechanical Engineering Department in the University of Technology how to structuring the electro-hydraulic elevator as well as the appropriate control strategy.

Implementation of an Electro-Pneumatic Prototype Elevator Controlled by PLC

Jamal Abdul-Kareem; Hatem Kareem; Athraa Sabeeh

Engineering and Technology Journal, 2015, Volume 33, Issue 8, Pages 1986-1998

The current paper presents a new simple and clear and implementation method for prototype Electro-pneumatic prototype elevator system. The controller used for the prototype was implemented in Ladder logic on a PLC. The PLC used for this work is (LSGLOFA-G7M-DR20A) series with (8) input and (12) output. This elevator system can be used for learning the structure of the elevator as well as the control strategy involved in elevator system for educational purposes. The research work can serve in learning enhancement for the undergraduate's students in the Electromechanical Department in the University of Technology