By Topic

Control Systems, IEEE

Issue 6 • Date Dec. 1994

Filter Results

Displaying Results 1 - 6 of 6
  • Emerging technologies in control engineering

    Publication Year: 1994 , Page(s): 10 - 12
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (360 KB)  

    Provides an overview of emerging technologies that are expected to become major areas of application for control systems technology. The technologies that were selected were chosen because of their importance (especially in economic terms) and because of their relevance to the field of control. They are: intelligent vehicle highway systems; semiconductor manufacturing; mechatronics; and microelectromechanical systems.<> View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • IVHS/AHS: driving into the future

    Publication Year: 1994 , Page(s): 13 - 20
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1122 KB)  

    Intelligent vehicle highway systems (IVHS) involve the systems integration of many emerging technologies to effectively address the needs, both present and future of the nation's roadway complex. An introduction to and brief history of IVHS is presented. Then, a more detailed overview of automated highway systems (AHS), the part of IVHS of most interest to control engineers, is given. One focus is on various control issues that must be confronted before an AHS is deployed.<> View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Control issues in automated highway systems

    Publication Year: 1994 , Page(s): 21 - 32
    Cited by:  Papers (72)  |  Patents (9)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1412 KB)  

    This article describes vehicle control issues that must be faced in designing a fully automated highway system (AHS). In particular, requirements for a control system architecture as well as issues of lateral and longitudinal "platoon" control are addressed. Interest in AHS is clearly expanding at a rapid pace due to the ever-increasing problems of freeway congestion and the potential for a technological solution. The approach described is based on five years of research as part of the California PATH program.<> View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Scheduling semiconductor manufacturing plants

    Publication Year: 1994 , Page(s): 33 - 40
    Cited by:  Papers (33)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (831 KB)  

    In many large systems, such as manufacturing systems and communication networks, whenever a resource becomes available, one has to decide which of several tasks contending for its attention should be performed next. Such problems are called "scheduling" problems. They are control problems of immense economic importance, and have often been formulated and addressed in an open-loop setting. Both to illustrate the types of problems encountered and to serve as focus, in this article we will address scheduling problems in a technological area of much topical interest-semiconductor manufacturing. Being of relatively recent origin, and organized differently from more traditional manufacturing systems such as flow shops and job shops, they are relatively less explored. They are also of significant economic interest, and much in the public limelight, and thus a fertile area for systems and control researchers. We provide an account of some problems in the area, as well as some suggested solutions.<> View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Nonlinear control of electric machines: an overview

    Publication Year: 1994 , Page(s): 41 - 51
    Cited by:  Papers (96)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1336 KB)  

    Due to the increasing availability of improved power electronics and digital processors at reduced costs, there has been a trend to seek higher performance from electric machine systems through the design of more sophisticated control systems software. There exist significant challenges in the search for improved control system designs, however, since: the dynamics of most electric machine systems exhibit significant nonlinearities; not all state variables are necessarily measured; and the parameters of the system can vary significantly from their nominal values. In recent years, a wide range of nonlinear methods for feedback control, state estimation, and parameter identification have emerged, and some of these results are reviewed and summarized.<> View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Silicon microstructures and microactuators for compact computer disk drives

    Publication Year: 1994 , Page(s): 52 - 57
    Cited by:  Papers (7)  |  Patents (8)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (802 KB)  

    Advances in VLSI and software technology have been the primary engines for the ongoing information revolution. But the steady stream of technical innovations in magnetic disk recording technology are also important factors contributing to the economic strengths of the computer and information industry. One important technology trend for the disk drive industry has been that of miniaturization. As this trend continues, future disk drives will have the same form factor as VLSIs, storing gigabytes of data. Silicon micromachining technology will play an important role in the fabrication of high-bandwidth servo-controlled microelectromechanical components for future super-compact disk drives. At UCLA and Caltech, for the past two years (1992-94) we have initiated a number of industry-supported joint research projects to develop microstructures and microactuators for future generation super compact magnetic recording rigid disk drives, including one to design and fabricate silicon read/write head microsuspensions with integrated electrical and mechanical interconnects, which target the next generation 30% form factor pico-sliders, and one for electromagnetic piggyback microactuators in super high-track-density applications, both of which utilize state-of-the-art silicon micromachining fabrication techniques.<> View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

IEEE Control Systems Magazine is the largest circulation technical periodical worldwide devoted to all aspects of control systems.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Jonathan P. How
jhow@mit.edu