The number of attached steel poles controls a magnetic type of these components exemplified by Magnomatics’ Magsplit. Control units for these components use 2D plots called shift maps to implement their logic. A type of these components were once implemented using a pair of conical pulleys, but now typically use electric generators that control the motion of a planetary set. DEXRON is a technical specification for (*) fluids used in these components as the working fluids for hydraulic torque converters. In “continuously variable” examples of these components, the gear ratio can take on a range of values, rather than a set of discrete values. For 10 points, name these components that control how often the wheels of a vehicle rotate relative to the engine, which can be “automatic” or “manual” in cars. ■END■
ANSWER: transmissions [or gearboxes; or drivetrains; accept automatic transmission or manual transmission or continuously variable transmission; accept transmission fluid; prompt on gear or gear train or gear set until “gear” is read; prompt on powertrain]
<VD, Other Science>
= Average correct buzz position