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Recent content by NV7891

  1. NV7891

    Engine Performance Maps

    Given the maximum power and torque ratings of a diesel engine, would it be possible to generate the throttle/Accelerator pedal map vs Torque at various RPMs? How can I construct this, or is it determined through tests? Thank you!
  2. NV7891

    Determining Upshifting and Downshifting lines for AMT

    AT for a truck ? Did you mean Automatic transmission for Trucks? Thank you and please bear with me if the question seems stupid.
  3. NV7891

    Determining Upshifting and Downshifting lines for AMT

    Sorry, hadn't attached the image.http://files.engineering.com/getfile.aspx?folder=d5b6ebdb-802e-453a-b8e3-fe9d5b5bd056&file=Screen_Shot_2015-03-16_at_5.20.25_PM.png
  4. NV7891

    Determining Upshifting and Downshifting lines for AMT

    Thank you. I also have a velocity vs RPM curve with earliest upshifting and downshifting positions marked. Could you please direct me to a source where I could read-up on it and understand better. The map I have is as attached. ( source: Automotive Transmission: Fundamentals )
  5. NV7891

    Determining Upshifting and Downshifting lines for AMT

    I am modeling a vehicle transmission. I have the transmission ratios, Torque vs RPM, sfc vs RPM curves. I would like to know how the up- and down- shifting lines are determined. It would be nice if I could get some help with it. Thank you.
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