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Articles 31 - 33 of 33
Full-Text Articles in Automotive Engineering
Design And Analysis Of Speed Control Using Hybrid Pid-Fuzzy Controller For Induction Motors, Ahmed Fattah
Design And Analysis Of Speed Control Using Hybrid Pid-Fuzzy Controller For Induction Motors, Ahmed Fattah
Masters Theses
This thesis presents a hybrid PID-Fuzzy control system for the speed control of a three-phase squirrel cage induction motor. The proposed method incorporates fuzzy logic and conventional controllers with utilization of vector control technique. This method combines the advantages of fuzzy logic controller and conventional controllers to improve the speed response of the induction motor. The design of fuzzy system consists of 9 fuzzy variables and 49 IF-THEN rules that define the behavior of the system. The FLC observes the loop error signal and correspondingly control the PID input error signal so that the actual speed signal matches the reference …
Virtual Analysis And Evaluation Of Roundabout Safety And Operational Features, Elisha Jackson Wankogere
Virtual Analysis And Evaluation Of Roundabout Safety And Operational Features, Elisha Jackson Wankogere
Masters Theses
Roundabouts can be a solution to safety concerns present at other types of intersections. Recently in the United States, there has been an increase in conversion of problematic intersections to roundabouts to improve their safety. However, it is difficult to make these roundabouts, especially multi-lane roundabouts, safe to all ranges of users. Roundabout features such as advance warning and signage play an important role in determining driver performance as they navigate the roundabout.
This research is an effort to evaluate new and existing roundabout safety and operational features such as signs and pavement markings and how they influence performance of …
Laser Doppler Velocimetry Research Of The Blowby Gas Characteristics In An Internal Combustion Engine, Mark Kevin Coffill
Laser Doppler Velocimetry Research Of The Blowby Gas Characteristics In An Internal Combustion Engine, Mark Kevin Coffill
Masters Theses
The project was designed to measure a reciprocating engine fluid flow (blowby gases past the piston rings) using a laser doppler velocimeter (LDV). Blowby gases were obtained by introducing compressed air into an engine cylinder (piston held at TDC) to simulate engine combustion pressures. Beginning the proposed research included starting an LDV/reciprocating engine laboratory at Western Michigan University and determining the limits of the measurement devices (LDV system in particular).
The limitations which were found in the LDV system only allowed for limited results of in cylinder optical measurements. The results obtained were for cylinder pressures below 0.6 kPa gauge …