Change search
Refine search result
6789 401 - 407 of 407
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 401. Zhang, J.
    et al.
    Pivnenko, S.
    Khatun, A.
    Laitinen, T.
    Carlsson, Jan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, EMC.
    Characterization of Small Antennas for Hearing Aids by Several Measurement Techniques2011In: 4 th European Conference on Antennas and Propagation. Barcelona, Spain, EuCAP , 2011Conference paper (Refereed)
  • 402.
    Zhang, Yafan
    et al.
    RISE, Swedish ICT, Acreo. Jönköping University, Sweden; KTH Royal Institute of Technology, Sweden.
    Belov, Ilja
    Jönköping University, Sweden.
    Sarius, Niklas G.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Bakowski, Mietek
    Jönköping University, Sweden.
    Nee, Hans Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut. Jönköping University, Sweden.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik. KTH Royal Institute of Technology, Sweden.
    Thermal evaluation of a liquid/air cooled integrated power inverter for hybrid vehicle applications2014In: 14th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2013, 2014, , p. 6529944article id 6529944Conference paper (Refereed)
    Abstract [en]

    A thermal design of an integrated double-side cooled SiC 50kW-1200V-200A power inverter for hybrid electric vehicle applications has been proposed to enable cooling in two different automotive operating environments: under-hood and controlled temperature environment of passenger compartment. The power inverter is integrated with air/liquid cooled cold plates equipped with finned channels. Concept evaluation and CFD model calibration have been performed on a simplified thermal prototype. Computational experiments on the detailed model of the inverter, including packaging materials, have been performed for automotive industry defined application scenarios, including two extreme and one typical driving cycles. For the studied applicationscenarios the case temperature of the SiC transistors and diodes have been found to be below 210°C. The maximum steady-state temperature of the DC-link capacitor has been below 127 °C for the worst-case scenario including liquid cooling, and up to 140 °C for the worst-case scenario with air-cooling.

  • 403.
    Zhang, Yafan
    et al.
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo. Jönköping University, Sweden; KTH Royal Institute of Technology, Sweden.
    Below, Ilja
    Jönköping University, Sweden.
    Bakowski, Mietek
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
    Lim, Jang-Kwon
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Nee, Hans Peter
    KTH Royal Institute of Technology, Sweden.
    Investigation of a finned baseplate material and thickness variation for thermal performance of a SiC power module2014In: 15th international conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, IEEE , 2014, , p. 1-8article id 6813817Conference paper (Refereed)
    Abstract [en]

    A simplified transient computational fluid dynamics model of an automotive three-phase double-side liquid cooled silicon carbide power inverter, including pin-fin baseplates, has been developed and qualified for parametric studies. Effective heat transfer coefficients have been extracted from the detailed pin-fin baseplate model for two coolant volume flow rates 2 l/min and 6 l/min, at the coolant temperature 105 °C. The inverter model includes temperature dependent heat losses of SiC transistors and diodes, calculated for two driving cycles. Baseplate materials such as copper, aluminum-silicon carbide metal matrix composite, aluminium alloy 6061 as well as virtual materials have been evaluated in the parametric studies. Thermal conductivity, specific heat and density have been varied as well as thickness of the finned baseplates (1 to 3 mm). A trade-off between temperature of SiC chips and baseplate weight has been investigated by means of Pareto optimization. The main results of the parametric studies include a weak dependence (1 to 3 °C) of the chip temperature on baseplate thickness. Furthermore, switching e.g. between copper and AlSiC results in 5 to 8 °C increase of the chip temperature, at 65 to 70 % baseplate weight reduction.

  • 404. Ödman, Torbjörn
    et al.
    Ankarson, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, EMC.
    Hallbjörner, Paul
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, EMC.
    Experimental Study of Path Loss for UHF Band Communication Near Water Surface2012In: International Journal on Communications Antenna and Propagation (I.Re.C.A.P.), Vol. 2, no 3, p. 215-219Article in journal (Other academic)
  • 405.
    Ödman, Torbjörn
    et al.
    Torbjörn Ödman, Sweden.
    Hallbjörner, Paul
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, EMC.
    Vivaldi antenna with low frequency resonance for reduced dimensions2013In: 7th European Conference on Antennas and Propagation, EuCAP 2013, 2013, , p. 2457-2459p. 2457-2459, article id 6546734Conference paper (Refereed)
    Abstract [en]

    This paper describes a broadband antenna with a design similar to a Vivaldi antenna. The difference is that a resonance is added to get a wider frequency range, which is used to reduce the dimensions of the antenna. The antenna is built and characterized by S11, radiation patterns, and gain.

  • 406.
    Östberg, Kenneth
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Pålitliga system.
    Johansson, Rolf
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Pålitliga system.
    Use of quality metrics for functional safety in systems of cooperative vehicles2012In: LNCS vol. 7613: Computer Safety, Reliability, and Security, 2012, Vol. 7613, p. 174-179p. 174-179Conference paper (Refereed)
    Abstract [en]

    Looking at functional safety of vehicles, we have seen an evolution from federated to integrated E/E architectures. When extending the way of specifying and analysing functional safety to also address cooperative functionality, it is not possible to keep a static view of the boundaries of the system for which to ensure safety. This is because the set of vehicles realizing a cooperative function may change a lot during the execution of the cooperative function. In this work in progress paper we suggest to move part of the task to show safety, from design time to run time. This implies that it will become necessary to monitor the system at run time, continuously calculate its quality and share that information between the individual vehicles to assert that the system is safe. In order to accomplish this, appropriate metrics are needed, both during design time and run time. Inspired by information theory, this paper sketches some common properties for metrics, and indicates how that can be beneficial.

  • 407.
    Östberg, Kenneth
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Pålitliga system.
    Törngren, Martin E.
    KTH Royal Institute of Technology, Sweden.
    Asplund, Fredrik
    KTH Royal Institute of Technology, Sweden.
    Bengtsson, Magnus
    Chalmers University of Technology, Sweden.
    Intelligent transport systems - The role of a safety loop for holistic safety management2014In: Proceedings 33rd Workshop on Computer Safety, Reliability, and Security, Springer International Publishing , 2014, , p. 3-10p. 3-10Conference paper (Refereed)
    Abstract [en]

    An ITS represents a Cyber-Physical System (CPS), which will involve information exchange at operational level as well as potential explicit collaboration between separate entities (systems of systems). Specific emphasis is required to manage the complexity and safety of such future CPS. In this paper we focus on model-based approaches for these purposes for analyzing and managing safety throughout the lifecycle of ITS. We argue that: (1) run-time risk assessment will be necessary for efficient ITS; (2) an information centric approach will be instrumental for future ITS to support all aspects of safety management - a "safety loop"; (3) a formal basis is required to deal with the large amounts of information present in an ITS. We elaborate these arguments and discuss what is required to support their realization.

6789 401 - 407 of 407
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf