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1. WO2020115259 - MODULE DE PROPULSION HYBRIDE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLAIMS

1. A hybrid drive module for connection to a powertrain of a vehicle, the hybrid drive module (200) comprising an electrical motor (210) connected with an upstream crankshaft (22) of an associated internal combustion engine (20) via at least one clutch (230, 260) and via at least one flywheel (240, 270), and with a downstream transmission (300) via at least a transmission clutch (250), wherein at least one flywheel (240, 270) is arranged on a rotational shaft (280) of the powertrain, the rotational shaft (280) being connected to the powertrain by the transmission clutch (250) and/or by the at least one clutch (230, 260), and wherein the rotational energy of the rotational shaft (280) is configured to be used to start the internal combustion engine (20).

2. The hybrid drive module (200) according to claim 1, wherein the rotational shaft (280) is at an upstream end delimited by a first clutch (230), and at a downstream end by the transmission clutch (250).

3. The hybrid drive module (200) according to claim 1 or 2, wherein the electric motor (210) connects to the rotational shaft (280).

4. The hybrid drive module (200) according to any one claims 1 to 3, wherein the first clutch (230) is a disc clutch, a conical clutch or a dog clutch.

5. The hybrid drive module (200) according to claim 1, wherein the first clutch (230) comprises an actuating member (231) controlling the connection state of the first clutch (230), said member (231) being moveable from a connected first position having a conical clutch interface, to an intermediate disconnected position, and to a second connected position having a disc-shaped clutch interface.

6. The hybrid drive module (200) according to claim 1, wherein the first clutch (230) comprises an actuating member (231) controlling the connection state of the first clutch (230), said member (231) being moveable from a connected first position having a dog clutch interface, to an intermediate disconnected position, and to a second connected position having a disc-shaped clutch interface.

7. The hybrid drive module (200) according to claim 5 or 6, wherein the actuating member (231) is spring biased into the first position.

8. The hybrid drive module (200) according to claim 1, wherein the rotational shaft (280) is at an upstream end delimited by a first clutch (230), and at a downstream end by a second clutch (260).

9. The hybrid drive module (200) according to claim 8, wherein the electric motor (210) connects to an intermediate shaft (281) delimited at a downstream end by the transmission clutch (250) and at an upstream end by the second clutch (260).

10. The hybrid drive module (200) according to any one of the preceding claims, wherein the at least one flywheel (240, 270) arranged on the rotational shaft (280) is a dual mass flywheel (240).

11. The hybrid drive module (200) according to claim 10, wherein the hybrid drive (200) comprises two flywheels (240, 270), and wherein a first flywheel (270) is arranged on the rotational shaft (280).

12. The hybrid drive module (200) according to claim 11, wherein a dual mass flywheel (240) is arranged on the intermediate shaft (281).

13. The hybrid drive module (200) according to claim 11, wherein a dual mass flywheel (240) is arranged on the crankshaft (22).

14. The hybrid drive module (200) according to claim 8, wherein the second clutch (260) is a disc clutch, a conical clutch or a dog clutch.

15. The hybrid drive module (200) according to any one of the preceding claims, wherein the electric motor (210) connects to the powertrain via a chain drive (220) or wherein the electric motor (210) is coaxially arranged on a shaft (280, 281) of the hybrid drive module (200).

16. The hybrid drive module (200) according to claim 15, further comprising a housing (290) at least enclosing the chain drive (220), at least one clutch (230, 250, 260) and at least one flywheel (240, 270).

17. The hybrid drive module (200) according to any one of the preceding claims, wherein the transmission clutch (250) forms a part of the hybrid drive module (200).

18. An engine assembly, comprising an internal combustion engine (20) and a hybrid drive module (200) according to any one of the preceding claims, wherein a housing (290) is at least partly formed by an end section (24) of an engine block (26) of said internal combustion engine (20).

19. A hybrid vehicle, comprising an engine assembly (10) according to claim 18.

20. A method (1000) for controlling a hybrid drive module (20) according to claim 1 in order to start an internal combustion engine (20) of an associated hybrid vehicle, wherein said method comprises:

providing (1001) rotational velocity to the rotational shaft (280) by the electric motor (210),

- transferring (1002) rotational energy from the rotational shaft (280) to the crankshaft (22) of the internal combustion engine (20) by at least partially engaging the first clutch (230).

21. The method (1000) according to claim 20, wherein the rotational shaft (280) is at an upstream end delimited by a first clutch (230), and at a downstream end by a second clutch (260), said second clutch (260) being disengaged during electric propulsion mode, and wherein said method further comprises

- when the vehicle is moving: providing (1001a) rotational velocity to the rotational shaft (280)by dragging forces through the second clutch (260), or by at least partially engaging the second clutch (260) when the rotational shaft (280) has a rotational velocity below a predetermined value,

- when the vehicle is at a standstill: providing (1001b) rotational velocity to the rotational shaft (280) by at least partially engaging the second clutch (260) and by subsequently providing torque by the electric motor (210),

- transferring (1002) rotational energy of the rotational shaft (280) to the crankshaft (22) of the internal combustion engine (20) by at least partially engaging the first clutch (230),

completely engaging (1002a) the first clutch (230), and

- completely engaging (1002b) the second clutch (260).

22. The method according to claim 21, wherein the providing (1001a) of rotational velocity to the rotational shaft (280) when the vehicle is moving and when the rotational shaft (280) has a rotational velocity below a predetermined value further comprises providing additional torque by the electric motor (210) when the second clutch (260) is at least partially engaged. .