{HEAD ~ A method} for detecting {TAIL ~ speed faults} in a hybrid powertrain having engine and electric machine speed inputs includes directly sensing the engine and machine speeds and performing comparisons of sensed engine speed with engine speed determined based upon the machine speeds 
{ HEAD ~ A method } for detecting { TAIL ~ speed faults } in a hybrid powertrain having engine and electric machine speed inputs includes directly sensing the engine and machine speeds and performing comparisons of sensed engine speed with engine speed determined based upon the machine speeds
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