International Journal of Automotive Engineering
Online ISSN : 2185-0992
Print ISSN : 2185-0984
ISSN-L : 2185-0992
Volume 3 , Issue 4
Showing 1-4 articles out of 4 articles from the selected issue
Technical Paper
  • Masao Ishihama, Sotaro Kanai, Tomohiko Iida
    2012 Volume 3 Issue 4 Pages 107-113
    Published: 2012
    Released: March 25, 2016
    JOURNALS OPEN ACCESS
    A device built in a camshaft drive chain sprocket for detecting precise torque fluctuation with minimum change on the valve drive system dynamical characteristics was developed. Strain gages are placed on thin plate areas in the sprocket disc. The signal from the circuit goes through frequency modulation and is transmitted to demodulation circuit via coil antennas. By this arrangement, almost perfect linearity was observed in the relationship of the output voltage and the applied torque. Torque fluctuation measured with this device on a model cylinder head driven by a variable speed motor showed good correlation with simulation results.
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  • Frottier Cyrille, Riess Michael, Sens Marc, Friedrich Ingo, Lang Olive ...
    2012 Volume 3 Issue 4 Pages 115-123
    Published: 2012
    Released: March 25, 2016
    JOURNALS OPEN ACCESS
    External or integrated water-cooled exhaust manifolds are mentioned to be favourable for the overall engine behaviour on diesel and gasoline engines. To validate this potential, an analytical study has been conducted. A diesel and a gasoline engine model were built-up in GT-SUITE to assess the influence of water-cooled exhaust manifolds at full load. These engine models have been combined with VeLoDyn - a tool from IAV for vehicle simulation considering heat fluxes between engine and vehicle cooling system - to show the potential of the different designs in a driving cycle, including the catalyst heating up phase.
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