Gateway to the New Millennium. 18th Digital Avionics Systems Conference. Proceedings (Cat. No.99CH37033)

1999

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  • Automotive electrical systems: architecture and components

    Publication Year: 1999, Page(s):8.C.5-1 - 8.C.5-10 vol.2
    Cited by:  Papers (12)  |  Patents (18)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (780 KB)

    Automotive electrical power systems that address the demands of increased electrical power, improved fuel economy and reduced emissions are discussed. Considerations related to high-efficiency automotive electrical power systems such as the selection of the types of electrical machines and power converters, selection of system voltages, battery voltage equalization, load management, energy managem... View full abstract»

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  • Web-based virtual engineering laboratory (VE-LAB) for real-time control of a hybrid electric vehicle starter/alternator

    Publication Year: 1999, Page(s):8.B.3-1 - 8.B.3-7 vol.2
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (488 KB)

    This paper describes the development and implementation of a novel, virtual engineering laboratory (VE-LAB) that uses the World Wide Web for real-time interactive control of a motor experimentation platform. Using a standard Web browser, VE-LAB allows a hybrid electric vehicle starter/alternator to be remotely and interactively operated in real-time by research scientists across the globe. VE-LAB ... View full abstract»

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  • A novel power generation system for ground vehicles

    Publication Year: 1999, Page(s):8.C.4-1 - 8.C.4-10 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (548 KB)

    The paper presents a new generation scheme that is capable of efficient high electric power as needed for future automobiles. The new system consists of a permanent magnet (PM) alternator, a split winding and a novel electronic voltage regulator. A proof of concept system, capable of providing 100/250 A (idle/cruising) at 14 V, has been built and tested. The results show that this high output is p... View full abstract»

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  • Intelligent efficiency mapping of a hybrid electric vehicle starter/alternator using fuzzy logic

    Publication Year: 1999, Page(s):8.B.2-1 - 8.B.2-8 vol.2
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (484 KB)

    This paper characterizes the optimum efficiency operating points of an 8 kW hybrid electric vehicle (HEV) starter/alternator, using a fuzzy logic controller for robust, automatic mapping. Hardware-in-the-simulation-loop techniques are presented to tune the fuzzy controller, and an algorithm to predict optimum starter/alternator operating points is developed. Experimental results show the effective... View full abstract»

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  • Voice signal extraction for enhanced speech quality in noisy vehicle environments

    Publication Year: 1999, Page(s):8.C.3-1 - 8.C.3-6 vol.2
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (416 KB)

    The voice extraction (VE) system described in this paper is an enabling technology that provides pure voice signals to speech processing systems in noisy vehicle environments. The technology is used to extract a single voice signal of interest from a mixture of sounds, including background noise, music, and multiple speakers. The technology embodies both hardware and software elements. Tests condu... View full abstract»

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  • Avionics product line software architecture flow policies

    Publication Year: 1999, Page(s):9.C.4-1 - 9.C.4-8 vol.2
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (632 KB)

    In 1995, an initiative was launched to assess the, potential for reuse of operational flight program software across multiple fighter aircraft platforms, and to define and demonstrate a supporting system architecture based upon open commercial hardware, software, standards and practices. The following year, this validation of the product line approach led to broader application of the techniques t... View full abstract»

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  • Advanced silicon rich automotive electrical power systems

    Publication Year: 1999, Page(s):8.B.1-1 - 8.B.1-8 vol.2
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (560 KB)

    In order to optimize automotive fuel economy, emissions, performance, and reliability, the More Electric Vehicles (MEV) concept emphasizes the utilization of electrical power systems instead of mechanical and hydraulic power systems. The proposed More Electric Systems facilitate high power loads and enable the introduction of power electronics in a silicon rich environment. On the other hand, ther... View full abstract»

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  • Induction motor parameter identification from operating data for electric drive applications

    Publication Year: 1999, Page(s):8.C.2-1 - 8.C.2-6 vol.2
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (372 KB)

    Parameter identification is critical for high performance control strategies in which both dynamic performance and energy efficiency are expected. This paper describes the methodology of identifying the parameters of an induction motor in electric drive applications. The authors use operating data to estimate the parameters, therefore obtaining a more realistic representation of the parameters. As... View full abstract»

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  • Space integrated GPS/INS (SIGI) navigation system for Space Shuttle

    Publication Year: 1999, Page(s):7.A.4-1 - 7.A.4-8 vol.2
    Cited by:  Papers (7)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (568 KB)

    This paper consists of a description of the lessons learned and the results of the integration of Honeywell's space-capable Space Integrated GPS/INS (SIGI) navigation system into the Space Shuttle vehicle. The SIGI, as demonstrated during the Shuttle flight test missions, was fully operational during all Shuttle mission phases, ascent, on-orbit, entry, and landing. The SIGI provides three independ... View full abstract»

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  • Jump starting 42V powernet vehicles

    Publication Year: 1999, Page(s):8.A.6-1 - 8.A.6-10 vol.2
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (756 KB)

    The automotive industry today is faced with ever increasing electrical power demands that are stretching the capabilities of present on-board power supplies. The use of electrical and electronic features to enhance customer comfort, convenience and safety, such as electronic automatic climate control, entertainment systems, antilock brakes (ABS) and traction control (TC) systems, contribute to exp... View full abstract»

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  • A product line approach to weapon systems acquisition

    Publication Year: 1999, Page(s):9.A.4-1 - 9.A.4-9 vol.2
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (656 KB)

    This paper focuses on the product line approach to weapon systems acquisition and its key features. We emphasize open systems and architectures and the development environment to support the approach. We discuss examples where this approach has produced outstanding results, and we summarize findings that should encourage senior executives and program managers to embrace the concept View full abstract»

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  • Evaluation of the generic open architecture framework [for weapons systems]

    Publication Year: 1999, Page(s):9.B.1-1 - 9.B.1-7 vol.2
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (472 KB)

    The Weapon Systems Annex proposes a framework similar to the DoD Technical Reference Model cited in the Joint Technical Architecture (JTA) but one whose governing source is the Society of Automotive Engineers (SAE). The SAE developed a technical reference model based on a NASA initiative for space flight systems software. The model is named the Generic Open Architecture (GOA) Framework. This GOA F... View full abstract»

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  • Integrated mechanical diagnostic (IMD) health and usage monitoring system (hums); an open system implementation case study

    Publication Year: 1999, Page(s):9.B.4-1 - 9.B.4-8 vol.2
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (716 KB)

    The large number of flight critical and maintenance intensive dynamic components in a helicopter has led to the development of diagnostic systems to improve flight safety and reduce operations and support costs. These systems, commonly called health and usage monitoring systems (HUMS), have been used on large commercial helicopters and are now being developed for military helicopters. US Navy emba... View full abstract»

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  • Design of pulse width modulation based smart switch controller for automotive applications

    Publication Year: 1999, Page(s):8.C.1-1 - 8.C.1-7 vol.2
    Cited by:  Papers (1)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (372 KB)

    This paper presents an improved design of a Pulse Width Modulation (PWM) controller for controlling the blower motor in the Heat Ventilation and Air Conditioning (HVAC) applications of an automobile. The design employs a smart switch instead of the conventional power MOSFET. This smart switch is a monolithic device with built-in protection features such as thermal shutdown, linear current limitati... View full abstract»

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  • Graybox software testing methodology: embedded software testing technique

    Publication Year: 1999, Page(s):10.A.5-1 - 10.A.5-8 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (588 KB)

    The Graybox Methodology is a full software life-cycle testing methodology used to functionally verify Ada, `C', FORTRAN and assembly language software developed for embedded applications. The Graybox methodology reduces the cost and the time of software development by automatically creating all test unique software. It has been estimated that one line of unique test code is developed for every ten... View full abstract»

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  • Global Positioning System receivers in space applications

    Publication Year: 1999, Page(s):7.A.3-1 - 7.A.3-7 vol.2
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (504 KB)

    Over the past few years, the use of Global Positioning Systems (GPS) has experienced explosive growth. Among the many applications is the use of GPS Receivers (GPSR) onboard space vehicles. With the large quantity of receivers available, finding one suitable for space applications is very difficult. This paper captures some of the “lessons learned” resulting from development efforts wi... View full abstract»

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  • A framework for reusable and rehostable software

    Publication Year: 1999, Page(s):8.A.5-1 - 8.A.5-8 vol.2
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (556 KB)

    The software content of real-time embedded military weapon systems continues to increase as do the cost and time to develop these systems. Many solutions have been suggested as a means of reducing the cost of software development. Software reuse is recognized as one of the most promising approaches to explore; however, it is a exceedingly difficult strategy to implement. Developing unique solution... View full abstract»

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  • Model driven automatic unit testing technology tool architecture

    Publication Year: 1999, Page(s):10.A.4-1 - 10.A.4-11 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (900 KB)

    Traditional approaches to unit testing involve establishing test vectors from the source code and establishing expected results that can be used to determine if a particular case has been addressed. This approach is time consuming and expensive. The availability of Computer Aided Control System Design (CACSD) tools for software modeling has permitted expected values to be automatically established... View full abstract»

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  • Software architecture development for product line software

    Publication Year: 1999, Page(s):9.D.4-1 - 9.D.4-7 vol.2
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (464 KB)

    In 1995, an initiative was launched to assess the potential for reuse of operational flight program software across multiple fighter aircraft platforms, and to define and demonstrate a supporting system architecture based upon open commercial hardware, software, standards and practices. This initiative produced a set of reusable object oriented navigation software, which was flight tested on sever... View full abstract»

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  • Software-enabled control technologies for autonomous aerial vehicles

    Publication Year: 1999, Page(s):5-1 - 5-8
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (496 KB)

    First Page of the Article
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  • Technical architecture for RF open system realization

    Publication Year: 1999, Page(s):9.A.3-1 - 9.A.3-8 vol.2
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (588 KB)

    RF functions can be effectively realized as open systems. Application of open system architecture (OSA) principles must be done at the function level, encompassing both software and hardware. Building upon the generic open architecture foundation, the additional layers necessary for RF function realization have been defined. The RF technical architecture is described with reference model that iden... View full abstract»

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  • Development of a COTS mass storage unit for the space readiness coherent lidar experiment

    Publication Year: 1999, Page(s):7.B.2-1 - 7.B.2-6 vol.2
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (504 KB)

    The technology to develop a Mass Storage Unit (MSU) using commercial-off-theshelf (COTS) hard drives is an on-going challenge to meet the Space Readiness Coherent Lidar Experiment (SPARCLE) program requirements. A conceptual view of SPARCLE's laser collecting atmospheric data from the shuttle is shown. The determination to develop this technology required several in depth studies before an actual ... View full abstract»

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  • Test and evaluation techniques using rapid prototyping tools for avionics requirements development

    Publication Year: 1999, Page(s):10.A.2-1 - 10.A.2-8 vol.2
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (624 KB)

    The avionics software changes approved for aircraft development are often turned into a list of requirements, the software designed, coded, tested, integrated with the hardware, ground tested, and finally flight tested. Different computer languages and hardware are often used during different phases of the development/test process. The objective of this paper is to show that by using several devel... View full abstract»

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  • JTRS-an open, distributed-object computing software radio architecture

    Publication Year: 1999, Page(s):9.A.6-1 - 9.A.6-8 vol.2
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (604 KB)

    The Joint Tactical Radio System (JTRS) program is a 3-step process to define, standardize, and implement a software defined radio architecture. Step 1 resulted in a baseline architecture definition. In Step 2 the architecture definition will be developed and validated as the Software Communications Architecture (SCA) which will be the basis for future DoD software radios. The SCA is also expected ... View full abstract»

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  • An open architecture for next generation space onboard processing

    Publication Year: 1999, Page(s):9.B.3-1 - 9.B.3-8 vol.2
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (704 KB)

    An advanced, scalable, standards-based high performance computer architecture, derived from DARPA High Performance Computing research, and adapted for space on-board processing is presented. Networked multicomputing achieves supercomputing performance by combining low cost, high performance, highly integrated single chip microprocessors and high bandwidth inter-processor network fabrics. To achiev... View full abstract»

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