Hybrid drive module and powertrain

Patent metadata

Field	Value
Publication number	US-9834082-B2
Application number	US-201314439306-A
Country	US
Kind code	B2
Filing date	Sep 30, 2013
Priority date	Oct 29, 2012
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

A hybrid drive module ( 110 ) which is constructed to transmit a torque from an input side ( 120 ) to an output side ( 130 ) includes a torsional vibration damper ( 180 ) which is coupled to the input side ( 120 ) and which works at least partially on the principle of power splitting, a disconnect clutch ( 280 ) which is coupled to the torsional vibration damper ( 180 ) and to the output side ( 130 ) and which is constructed to interrupt a torque flow from the input side ( 120 ) to the output side ( 130 ), and an electric drive component ( 320 ) which is coupled to the output side ( 130 ) and which is arranged so as to introduce a torque component provided by the electric drive component ( 320 ) into the torque flow downstream of the disconnect clutch ( 280 ).

First claim

The invention claimed is:

1. A hybrid drive module ( 110 ) for transmitting a torque from an input side ( 120 ) to an output side ( 130 ), comprising:
a torsional vibration damper ( 180 ) coupled to the input side ( 120 ) and constructed to operate at least partially on the principle of power splitting;
a disconnect clutch ( 280 ) coupled to the torsional vibration damper ( 180 ) and to the output side ( 130 ) and constructed to interrupt a torque flow from the input side ( 120 ) to the output side ( 130 ); and
an electric drive component ( 320 ) coupled to the output side ( 130 ) and arranged so as to introduce a torque component provided by the electric drive component ( 320 ) into the torque flow downstream of the disconnect clutch ( 280 );
a superposition gear unit ( 220 );
wherein the torsional vibration damper ( 180 ) transmits the torque received from the input side ( 120 ) to the superposition gear unit ( 220 ) via a first torque transmission path ( 200 ) and a second torque transmission path ( 210 ) parallel to the first torque transmission path ( 200 );
wherein the torsional vibration damper ( 180 ) comprises a phase shifter arrangement ( 230 ) in the first torque transmission path ( 200 ) for generating a phase shift in a first torque irregularity of a first torque component, the first torque irregularity being transmitted via the first torque transmission path ( 200 ), with respect to a second torque irregularity of a second torque component, the second torque irregularity being transmitted via the second torque transmission path ( 210 ), and wherein the superposition pear unit ( 220 ) is constructed to superpose the torque components transmitted via the first and second torque transmission paths.

2. The hybrid drive module ( 110 ) according to claim 1 , wherein the superposition gear unit ( 220 ) is arranged in the torque flow upstream of the disconnect clutch ( 280 ).

3. The hybrid drive module ( 110 ) according to claim 1 , wherein the electric drive component ( 320 ) has a maximum power output of at least 3 kW.

4. The hybrid drive module ( 110 ) according to claim 1 , additionally comprising a further torsional vibration damper ( 490 ) which is arranged in the torque flow between the disconnect clutch ( 280 ) and the output side ( 130 ).

5. The hybrid drive module ( 110 ) according to claim 1 , wherein the electric drive component ( 320 ) includes a rotor ( 330 ), and wherein the hybrid drive module ( 110 ) includes a stator ( 340 ) associated with the rotor ( 330 ), wherein the rotor ( 330 ) and stator ( 340 ) are arranged such that the rotor ( 330 ) and the stator ( 340 ) form an electric motor drive, or wherein a stator ( 340 ) of another component is associated with the rotor ( 330 ), the rotor ( 330 ) being constructed and arranged such that the rotor ( 330 ) is able to cooperate with the stator ( 340 ) of the other component to form an electric motor drive.

6. A powertrain ( 100 ) comprising:
an internal combustion engine ( 115 );
a transmission ( 160 ); and a hybrid drive module ( 110 ) for transmitting a torque from an input side to an output side;
a torsional vibration damper ( 180 ) coupled to the internal combustion engine ( 115 ) and constructed to operate at least partially on the principle of power splitting;
a disconnect clutch ( 280 ) coupled to the torsional vibration damper ( 180 ) and to the transmission ( 160 ) and constructed to interrupt a torque flow from the internal combustion engine ( 115 ) to the transmission ( 160 );
an electric drive component ( 320 ) coupled to the transmission ( 160 ) and arranged so as to transmit a torque component provided by the electric drive component ( 320 ) into the torque flow downstream of the disconnect clutch ( 280 );
a superposition gear unit ( 220 );
wherein the torsional vibration damper ( 180 ) transmits the torque received from the input side ( 120 ) to the superposition gear unit ( 220 ) via a first torque transmission path ( 200 ) and a second torque transmission path ( 210 ) parallel to the first torque transmission path ( 200 );
wherein the torsional vibration damper ( 180 ) comprises a phase shifter arrangement ( 230 ) in the first torque transmission path ( 200 ) for generating a phase shift in a first torque irregularity of a first torque component, the first torque irregularity being transmitted via the first torque transmission path ( 200 ), with respect to a second torque irregularity of a second torque component, the second torque irregularity being transmitted via the second torque transmission path ( 210 ), and wherein the superposition gear unit ( 220 ) is constructed to superpose the torque components transmitted via the first and second torque transmission paths.

7. The powertrain ( 100 ) according to claim 6 , wherein the transmission ( 160 ) is an automatic shift transmission.

8. The powertrain ( 100 ) according to claim 7 , wherein the automatic shift transmission comprises at least one clutch element ( 175 ) constructed in such a way that a torque flow through the automatic shift transmission can be at least partially interrupted by engaging or disengaging the clutch element ( 175 ).

9. The powertrain ( 100 ) according to claim 6 , additionally comprising a control device constructed to move the disconnect clutch ( 280 ) into a closed condition in idling mode of the internal combustion engine ( 115 ) so that the torque flow from the internal combustion engine ( 115 ) is not interrupted via the disconnect clutch ( 280 ).

10. The powertrain ( 100 ) according to claim 6 , further comprising a housing ( 170 ) filled or fillable with fluid and which receives at least the disconnect clutch ( 280 ).

11. The powertrain ( 100 ) according to claim 6 , wherein the housing ( 170 ) comprises a wet space ( 350 ); wherein one of the torsional vibration damper ( 180 ) and the superposition gear unit ( 220 ) is received in the wet space ( 350 ).

12. The powertrain ( 100 ) according to claim 6 , wherein the housing ( 170 ) comprises a dry space ( 360 ), wherein one of the torsional vibration damper ( 180 ) and the superposition gear unit ( 220 ) is received in the dry space ( 360 ).

13. The powertrain ( 100 ) according to claim 6 , wherein the powertrain ( 100 ) includes a hybrid drive module ( 110 ) which includes the torsional vibration damper ( 180 ), the disconnect clutch ( 280 ) and the electric drive component ( 320 ).

14. The powertrain ( 100 ) according to claim 6 , wherein the electric drive component ( 320 ) has a rotor ( 330 ) coupled to the transmission ( 160 ), and a stator ( 340 ) associated with the rotor ( 330 ) and constructed together with the rotor ( 330 ) so as to form an electric motor drive.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Dögel Thomas
• Kühner Michael
• Ratte Andreas

Classifications

• Y02T10/62

  Hybrid vehicles · CPC title

• Y02T10/6252

  Cross-Sectional Technologies · mapped topic

• B60K6/365

  with the gears having orbital motion · CPC title

• Y10S903/912

  Drive line clutch · CPC title

• F16F15/121

  using springs as elastic members, e.g. metallic springs {(F16F15/133 takes precedence)} · CPC title