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Mr Stelios Karagiorgis
Previous Member
| Telephone: | 01223332681 |
| Fax: | 01223765311 |
| email: | sk322@cam.ac.uk |
| Personal Homepage: | |
| Office Location: | Hopkinson Laboratory |
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| Background |
Received his BA (First Class) and MEng (Merit),2003, in Electrical and Information Science Tripos at Cambridge University Engineering Department.
Master's project has been the evaluation of new concept actuators for yaw control of fighter aircarfts under the supervision of Professor Keith Glover.
Currently on a PhD course in Control, looking at control design and implementation for Internal Combustion Engines, under the supervision of Professor Keith Glover.
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| Research Overview |
Control strategies for transition into and out of the CAI operating region. Load following control and autoignition timing control in the CAI region.
Controlled Auto-ignition (CAI) combustion has been receiving increased attention recently due to its improved fuel economy and ultra low NOx emissions compared to Spark Ignition (SI). The limited operating region of this new combustion mode suggests that its most useful realisation would be in a hybrid SI/CAI engine. Driveability implies that the transitions should be bumpless with regard to the work produced by the engine and the combustion phasing.
Unlike SI engines, in CAI the engine has the capability to operate unthrottled, which means that a drive-by-wire control system should be used to control the load. Furthermore in CAI, there is no direct means of controlling the ignition timing since the spark discharge has no effect on combustion. |
| Teaching |
Supervis-ed/ing:
1. 2nd Year Linear Systems and Control.(Paper 6)
Basic course on analysis techniques for continuous time linear systems and introduction to feedback control.
2. 2nd Year Communications (Paper 6)
Basic course on characteristics of transmission paths, modulation methods and digitisation of signals.
3. 3rd Year Signals and Systems
Course on discrete time systems, random processes and information theory
Demonstrat-ed/ing:
1. Control of a shower temperature-2nd Year Experiment
2. Control of a "Ball and Beam" system-3rd Year Experiment
3. Control of an evaporator plant-3rd year computer based project
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