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EXPERIMENTAL TESTING OF NEW FRICTION MATERIALS FOR AUTOMATIC TRANSMISSION
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Language:
English
Abstract
As data obtained from experimental testing of friction materials operating in oil have long been a subject of controversy between transmission engineers, we present a brief description of several test machines and associate instrumentation, in general use today.
Namely: A constant drive - constant torque unit, an inertia type dynamometer. (This unit is most generally used), and finally, a new design which operates both the drive and driven members simulating most any transmission operation desired. Here, the same fundamental instrumentation is used as that for a test transmission.
Regardless of the unit, most of the following data is recorded depending on flexibility and instrumentation:
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1.
Torque
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2.
Deceleration or acceleration
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3.
Temperatures of oil
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4.
Operating pressures
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5.
Speed, plus various other data as requested.
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