Clutch arrangement and drivetrain for a motor vehicle
AssigneeGETRAG Getriebe- und Zahnradfabrik Harmann Hagenmeyer GmbH & Cie KG
InventorsGünter Rühle, Mark Schweiher
Life of this patent
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Abstract
A clutch arrangement for a drivetrain of a motor vehicle. The clutch arrangement has a first clutch, a second clutch, and a hydraulic actuator arrangement. The actuator arrangement has a first hydraulic cylinder for actuating the first clutch and a second hydraulic cylinder for actuating the second clutch. The actuator arrangement has an actuator pump which is driven by means of an electric motor and which can be operated in two directions of rotation. The actuator pump has a first port, which is connected to the first hydraulic cylinder, and a second port, which is connected to the second hydraulic cylinder. The actuator arrangement actuates the first or the second clutch depending on the direction of rotation of the actuator pump.
Claims16
A clutch arrangement for a drivetrain of a motor vehicle, having:
- a first clutch in the form of a wet-running clutch;
- a second clutch in the form of a wet-running clutch;
- and
- a hydraulic actuator arrangement;
- wherein the actuator arrangement has a first hydraulic cylinder for actuating the first clutch and a second hydraulic cylinder for actuating the second clutch;
- wherein the actuator arrangement has an actuator pump which is driven by means of an electric motor and which can be operated in two directions of rotation;
- wherein the actuator pump has a first port, which is connected to the first hydraulic cylinder, and a second port, which is connected to the second hydraulic cylinder;
- wherein the actuator arrangement actuates the first or the second clutch depending on the direction of rotation of the actuator pump;
- and
- wherein the actuator arrangement is designed to supply lubricating fluid to the clutches.
A drivetrain for a motor vehicle, having:
- a first electric machine for providing drive power, wherein the first electric machine is connected to an electrical energy store;
- a differential which can distribute drive power to two driven wheels or axles of the motor vehicle;
- a first transmission arrangement which connects the first electric machine to the differential;
- an internal combustion engine;
- a second electric machine which is coupled to the internal combustion engine in order to charge the electrical energy store in a generator mode;
- a second transmission arrangement which connects the internal combustion engine to the differential;
- wherein the second transmission arrangement has a first gear stage and a second gear stage which can be alternately engaged, for the transmission of drive power from the internal combustion engine to the differential, by means of a clutch arrangement, the clutch arrangement having:
- a first clutch;
- a second clutch;
- a hydraulic actuator arrangement;
- wherein the actuator arrangement has a first hydraulic cylinder for actuating the first clutch and a second hydraulic cylinder for actuating the second clutch;
- wherein the actuator arrangement has an actuator pump which is driven by means of an electric motor and which can be operated in two directions of rotation;
- wherein the actuator pump has a first port, which is connected to the first hydraulic cylinder, and a second port, which is connected to the second hydraulic cylinder;
- and
- wherein the actuator arrangement actuates the first or the second clutch depending on the direction of rotation of the actuator pump.
Dependencies are inferred from the claim text.