SAE Recommended Practice J1540 provides an indirect method of measuring transmission efficiency. The method involves measuring torque losses resulting from a dynamometer setup in which two test transmissions are mounted in a fashion that allows them to rotate about their input and output shafts. For a variety of reasons, an energy-in-energy-out measurement approach may be more practical for heavy-duty vehicle transmissions. With an appropriate test setup, the analysis simplifies to comparing the torque entering the transmission to the torque leaving it, factoring in the gear ratio.


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    Title :

    Utilizing An Energy-In-Energy-Out Approach to Simplify Heavy-Duty Transmission Efficiency Testing


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Truck & Bus Meeting & Exposition ; 2000



    Publication date :

    2000-12-04




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English


    Keywords :



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