On lift-cranes, sluggish load response to operator commands using pneumatic controls prompted the development of an electro-hydraulic proportional pressure control system to engage the input clutch on a hydraulic torque converter. Continuous modulation of hundreds of horsepower was reduced to a control task no more difficult than changing the intensity of a 12-volt light bulb. Tests with systems under manual control proved so responsive that high-performance, closed-loop speed regulation was not only practical but ultimately had enough precision, for example, to adjust the phase angle of a 3600 RPM electric power generator.


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    Title :

    Electronic Control of a Modulated Torque Converter


    Additional title:

    Sae Technical Papers


    Contributors:
    Cox, Craig (author)

    Conference:

    1984 SAE International Off-Highway and Powerplant Congress and Exposition ; 1984



    Publication date :

    1984-09-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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