Method for operating a hybrid drive system having a torque converter
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United States of America Patent
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Oct 30, 2012
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N/A
app pub date -
Oct 5, 2007
filing date -
Oct 12, 2006
priority date (Note) -
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Abstract
A method for operating a hybrid drive system, in particular of a motor vehicle, having at least one electric machine and one internal combustion engine, a disconnecting clutch being provided between the electric machine and the internal combustion engine and a torque converter having a turbine wheel being provided between the electric machine and a hybrid drive output, the disconnecting clutch being engaged for starting the internal combustion engine. It is provided that, as a function of the rotational speed of the turbine wheel of the torque converter, a rotational speed is predefined for the electric machine such that no sudden torque change occurs at the hybrid drive output when the internal combustion engine is started.
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