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Thread: How to log driver demand torque?

  1. #1

    How to log driver demand torque?

    I want to log the values of the axis for driver demanded torque. I know the horizontal is pedal position, but what is that top vertical axis? It is labeled as "rpm or vss" and it ranges across the table from 0 to 240 or something similar? What pid could I scan for this? Is it a vss value? Mph? Can't be rpm. .

  2. #2
    Advanced Tuner Ghostnotes's Avatar
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    VSS is Vehicle Speed Sensor in MPH, some do have RPM though.
    I always tune VVE....
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  3. #3
    Senior Tuner Higgs Boson's Avatar
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    it's kilometers per hour not mph

  4. #4
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    Quote Originally Posted by traviz06 View Post
    I want to log the values of the axis for driver demanded torque. I know the horizontal is pedal position, but what is that top vertical axis? It is labeled as "rpm or vss" and it ranges across the table from 0 to 240 or something similar? What pid could I scan for this? Is it a vss value? Mph? Can't be rpm. .
    Most are in Kilometers as Higgs stated.
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  5. #5
    KPH! that makes sense. Thanks guys

  6. #6
    Tuner in Training
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    Hey guys, sorry to dig up an old thread, but the only Driver Demand PID I have is a ratio "Driver Demand Engine Torque (SAE) [Ratio]", so two questions:
    1, What is this a ratio of?
    2, How do I log actual Driver Demand Engine Torque?

    I'm trying to log this in hopes of resolving some low speed torque management advance fluctuations, so if you have any advice, I'm all ears.
    Thanks.

    Oh, and this is on a '17 Camaro ZL1 (E92A ECM)