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    Effect of Lubricant on Automatic Transmission Clutch Plate Durability

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    Clutch plate durability in an automatic transmission has been correlated with fluid-clutch plate coefficient of friction and clutch energy absorption. These values were computed from measurements taken during the dynamometer operation of a conventional engine and automatic transmission combination. The variables measured for these computations were transmission output shaft torque, output shaft speed, clutch drum speed, and clutch-apply pressure.

    Author Information:

    Davison, E. D.
    Research Laboratories, General Motors Corp., Warren, Mich

    Committee/Subcommittee: D02.06

    DOI: 10.1520/STP43717S