Invention Grant
- Patent Title: Hybrid drivetrain having active torsional vibration damping, and method for carrying out the active torsional damping
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Application No.: US14141885Application Date: 2013-12-27
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Publication No.: US09933039B2Publication Date: 2018-04-03
- Inventor: Olaf Werner , Michael Huber , Carsten Angrick , Matthias Gramann , Martin Dilzer
- Applicant: Schaeffler Technologies AG & Co. KG
- Applicant Address: DE Herzogenaurach
- Assignee: Schaeffler Technologies AG & Co. KG
- Current Assignee: Schaeffler Technologies AG & Co. KG
- Current Assignee Address: DE Herzogenaurach
- Agent Kevin L. Parks
- Priority: DE102011078249 20110628; DE102012201948 20120209
- Main IPC: F02B75/06
- IPC: F02B75/06 ; F16F15/14 ; B60W10/08 ; B60W30/20 ; B60K6/485 ; B60W20/00

Abstract:
A drivetrain having an active torsional vibration damping and a method for carrying out the active torsional vibration damping, having an internal combustion engine being affected by torsional vibrations and having a crankshaft, a torsional vibration damper that is operatively connected to the crankshaft and has at least one operating point of low vibration isolation of the torsional vibrations and has a primary inertial mass associated with the crankshaft and an inertial mass associated with a gear input shaft of a gearbox, the inertial mass being rotatable relatively and limitedly with respect to the primary inertial mass against the action of a spring device. The drivetrain also includes an electric motor having a rotating mass operatively connected to the gearbox input shaft, and a control unit, the spring device being formed by linear springs, the rotating mass of the electric motor being designed as a secondary inertial mass.
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