Volume 32 Issue 7 • July 1995

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Displaying Results 1 - 6 of 6
  • Hybrids: then and now

    Publication Year: 1995, Page(s):16 - 21
    Cited by:  Papers (56)  |  Patents (10)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (800 KB)

    Very different from their turn-of-the-century forebears, modern hybrid electric vehicles (HEV) are almost as clean as pure EVs and have the range of conventional cars. The author discusses the advantages of HEV and describes the two basic types of HEV, parallel and serial. The serial type has a downsized engine on board that drives a generator that supplements the batteries and can charge them whe... View full abstract»

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  • Getting a Ford HEV on the road

    Publication Year: 1995, Page(s):22 - 25
    Cited by:  Papers (17)  |  Patents (10)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (538 KB)

    A series of prototypes has culminated in an advanced hybrid electric vehicle (HEV) that can be driven and evaluated like any other test car. An Escort station wagon is the basis for the vehicle which is equipped with a 5O kW (68 hp) three-cylinder engine and a 30 kW electric drive coupled to an automatic transmission and to a 7 kWh nickel-cadmium battery. The engine and electric drive are fully in... View full abstract»

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  • Hybrid electric transit bus pollutes less, conserves fuel

    Publication Year: 1995, Page(s):26 - 31
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (966 KB)

    This true low-floor bus prototype has the performance of a conventional diesel-powered vehicle with hardly any fumes. The authors discuss the design of this series hybrid bus, and in particular the propulsion system. Four independent AC drives, one integrated into each driven wheel, are used. They are powered by a battery assisted auxiliary power unit consisting of a downsized heat engine coupled ... View full abstract»

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  • Power ICs in the saddle

    Publication Year: 1995, Page(s):34 - 40
    Cited by:  Papers (28)  |  Patents (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (1331 KB)

    Improving the voltage, current, and switching capabilities of power electronics devices makes for more efficient control of power and energy. Interface with microprocessors for protection from unfriendly environments is also an asset. The author discusses the development of power electronic devices using MOSFETs, insulated gate transistors, and MOS controlled thyristors. The future of SiC based de... View full abstract»

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  • The digital backlot [cinema special effects]

    Publication Year: 1995, Page(s):51 - 63
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (2099 KB)

    Special effects become more special thanks to digital processing at every level of filmmaking. Here, the author describes how Hollywood's nearly insatiable demands for novelty are being met with state-of-the-art graphics technology and innovative craftsmanship.<<ETX>> View full abstract»

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  • Vannevar Bush [biography]

    Publication Year: 1995, Page(s):65 - 69
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (1398 KB)

    This paper presents a biography of the life and career of Vannevar Bush (1890-1974). Engineering's strongest voice in 20th century US politics and an electrical engineer of distinction himself, Bush had great influence on the growth of 20th century science and technology, and urged his fellows to play active roles in public affairs.<<ETX>> View full abstract»

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