Vehicle powertrain torsional processing system

Details Vehicle powertrain torsional processing system Vehicle powertrain torsional processing system

2007-01-30

2007-01-30

Camby, Richard M. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle diagnosis or maintenance indication

C701S031000, C701S111000

Reexamination Certificate

active

10806716

ABSTRACT:
A system is disclosed for processing vehicle powertrain torsional information resulting from vibration of the vehicle powertrain. A speed sensor produces a speed signal indicative of rotational speed of one of the powertrain components, and a control computer is operable to determine a magnitude of an Nth-order torsional component of vehicle powertrain vibration as a function of the speed signal. The control computer is further operable to execute either of a diagnostic routine relating to the Nth-order torsional component and a control routine controlling operation of the vehicle powertrain away from conditions at which the magnitude of the Nth-order torsional component exceeds a threshold magnitude if the magnitude of the Nth-order torsional component exceeds the threshold magnitude for at least a first predefined duration.

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