Volume 29 Issue 11 • Nov. 1992

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Displaying Results 1 - 12 of 12
  • Electric vehicles

    Publication Year: 1992, Page(s):18 - 21
    Cited by:  Papers (21)  |  Patents (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (743 KB)

    The renewed interest in electric vehicles (EVs) in the wake of the California Air Resources Board mandate that 2% of the vehicles lighter than 3750 lb (1700 kg) sold by each manufacturer in that state in 1998 be zero-emission vehicles is examined. The reasons why replacing an internal combustion vehicle (ICV) with an electrically powered equivalent greatly reduces air pollution, not only where the... View full abstract»

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  • Electric vehicles-pursuing efficiency

    Publication Year: 1992, Page(s):22 - 24
    Cited by:  Papers (4)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (618 KB)

    The approaches being used to make electric vehicles (EVs) highly efficient given the limitations of EV batteries are described. They include reducing vehicle weight, aerodynamic drag, tire rolling resistance, and bearing friction; eliminating brake drag; and increasing the efficiency of the electric motor and its control electronics. The intrinsic efficiency of electric motors and the choice of po... View full abstract»

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  • Engineering software-talking about tools

    Publication Year: 1992, Page(s):32 - 33
    Cited by:  Papers (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    Results of sampling 2000 Spectrum subscribers to determine patterns of software usage and users' needs are reported. System design is the predominant design activity among the 1036 respondents (42%), with software design running a close second (37.7%).<<ETX>> View full abstract»

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  • Engineering software-more logic synthesis for ASICs

    Publication Year: 1992, Page(s):44 - 48
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    Computer-aided design (CAD) tools that reduce application-specific integrated circuit (ASIC) development time are examined. The use of hardware description languages to ease the data entry tasks of ASIC designers is discussed. Coupling logic synthesis tools to layout tools is considered. Limitations of logic synthesis are addressed, and some features of intelligent synthesis tools are described.&l... View full abstract»

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  • Engineering software-designing mixed-signal ICs

    Publication Year: 1992, Page(s):49 - 51
    Cited by:  Papers (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (378 KB)

    Problems confronting designers when they include both analog and digital components on the same substrate are described. The use of hardware description languages and physical design tools is discussed. Future directions for CAD tool development are indicated.<<ETX>> View full abstract»

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  • Engineering software-computing EM fields

    Publication Year: 1992, Page(s):52 - 54
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    Software packages for electromagnetic field simulation are discussed with respect to the type of analysis involved (eddy currents, thermal behavior, etc.), the modeling method (finite element, finite difference, etc.), and whether two- or three-dimensional analysis is needed. Features to look for in a package are considered, and the modules it comprises are described.<<ETX>> View full abstract»

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  • Engineering software-multichip routing and placement

    Publication Year: 1992, Page(s):61 - 62
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (458 KB)

    The demands being placed on CAD systems by current advances in packaging technology, in particular, the need to design interconnecting networks for thin-film multichip modules (MCMs), are discussed. The approaches embodied in several recently developed software packages are described. These include interactive placement and routing, warping, shape-based routing, rubber-band routing, and correct by... View full abstract»

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  • Engineering software-data acquisition made simpler

    Publication Year: 1992, Page(s):66 - 71
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (1042 KB)

    Features of current data acquisition software are discussed. They include platform independence, greater compatibility with add-in boards, and use of graphical interfaces. Representative packages are described.<<ETX>> View full abstract»

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  • Engineering software-math and graphics

    Publication Year: 1992
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (823 KB)

    New software graphics and mathematical packages that are bringing superior power to engineering applications are discussed. The most successful of these programs are aimed at broad technical and educational markets, and their usefulness to an engineer is linked, in part, to the extensive applications software that comes bundled with them. Using these programs, an engineer may model electric or mec... View full abstract»

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  • Engineering software-tools for embedding DSP

    Publication Year: 1992, Page(s):81 - 82
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (347 KB)

    The three main design stages for embedding digital signal processing (DSP) chips are discussed. They are algorithm development, software coding, and debugging. The special needs of multiprocessor system design are examined.<<ETX>> View full abstract»

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  • Electric vehicles-architecting the system

    Publication Year: 1992, Page(s):94 - 96
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    Standardized charging hardware and procedures that must be put in place before the first electric vehicles (EVs) go on sale in the mid-90s are discussed. Other requirements considered include charging installations, facilities for replacing and recycling batteries, training and deployment of technicians for emergency road service and for manning quick-charge stations, training for police and firef... View full abstract»

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  • Electric vehicles-the great battery barrier

    Publication Year: 1992, Page(s):97 - 101
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (858 KB)

    Research efforts aimed at developing an effective and economical electrochemical power source for electric road vehicles (EVs) are examined. The two goals are to extend the range of EVs, i.e. the distance they can go on a simple charge, and to cut the recharging time. The various kinds of battery are described, and their advantages and drawbacks are identified.<<ETX>> View full abstract»

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IEEE Spectrum Magazine, the flagship publication of the IEEE, explores the development, applications and implications of new technologies.

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