Patent ID: 6283079
Filing Date: 2001-09-04
Classification: F02B,F16F

Abstract:
A system for suppressing engine vibrations comprising:a combined starter/alternator apparatus including a starter component connected to the engine for selectively rotating an engine part to add power to the engine and an alternator component connected to the engine for selectively generating electricity and absorbing power from the engine;a control means including a threshold level device for providing a rate of speed threshold level value;a key-off means connected to the control means to provide a signal when the engine ignition is turned off and the engine begins to shut down;sensor means connected to the engine to provide signals representative of the rate of speed of the engine, the threshold level device being connected to the sensor means for comparing the rate of speed signal from the sensor means to the threshold level for providing a first, Yes, signal when the rate of speed signal from the sensor device is below the threshold level, and a second, Yes, signal when the rate of speed signal from the sensor means is above the threshold level; andthe combined started alternator apparatus being responsive to the first, Yes, signal from the control means to absorb power from the engine and responsive to the second, Yes, signal from the control means to add power to the engine to suppress engine vibrations during the shut down.