Hybrid drive train with torsional vibration damper
AssigneeDaimler AG
InventorFranz Moser
Life of this patent
Estimating the term…
Abstract
In a hybrid drive train with torsional vibration dampers of a hybrid motor vehicle, including an internal combustion engine, an electric machine, a clutch and a transmission, a first spring damping system is arranged between the internal combustion engine and the electric machine and a second spring damping system is arranged between the electric machine and the transmission, each damping system being provided with an arrangement of springs and a centrifugal pendulum for reducing humming noises in a hybrid drive train in the low speed driving range of the hybrid motor vehicle.
Claims5
A drive train for hybrid drives, including an internal combustion engine (102;
- 202), an electric machine (104;
- 204) connected to the internal combustion engine via a clutch (118;
- 218) and a transmission (106;
- 206) connected to the electric machine (104;
- 204), with a first spring and damping system (124;
- 224) being arranged between the internal combustion engine (102;
- 202) and the clutch (118, 218),
- the electric machine (104;
- 204) being arranged on the transmission side of the clutch (118;
- 218) and the clutch (218) being arranged between the electric machine (104;
- 204) and the first spring and damping system (124, 224), the clutch (118, 218) having an input side (116, 216) which is firmly connected for rotation with an output side of the spring and damping system (124, 224), the spring and damping system (124;
- 224) including a centrifugal pendulum means (140;
- 240) for reducing rotational vibrations between the internal combustion engine and the electric machine (104, 204),
- and a second spring and damping system (146;
- 246) being arranged between the electric machine (104, 204) and the transmission (106, 206) for reducing or eliminating rotational vibrations present between the electric machine and the transmission (106, 206).
Dependencies are inferred from the claim text.