Impulse Start in a Hybrid Drivetrain
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsBernhard HOESS, Thomas JUNG, Sebastian KOBLER
Life of this patent
Estimating the term…
Abstract
A hybrid drive device includes an internal combustion engine, an electric machine and an impulse start module which comprises two clutches and a flywheel mass. A method for operating the hybrid device includes opening the first clutch of the impulse-start module and establishing a start-up requirement for the internal-combustion engine. The method also includes closing the first clutch with the second clutch in an open or closed position for a start of the internal-combustion engine.
Claims19
A method for operating a hybrid-drive device of a motor vehicle, wherein the hybrid-drive device comprises an internal-combustion engine, an electric machine and an impulse-start module, and wherein the impulse-start module comprises two clutches and a centrifugal mass, the method comprises:
- opening the first clutch of the impulse-start module;
- establishing a start-up requirement for the internal-combustion engine;
- and
- closing the first clutch with the second clutch in an open or closed position for a start of the internal-combustion engine.
A hybrid-drive device of a motor vehicle, comprising:
- an internal-combustion engine;
- an electric machine;
- an impulse-start module which is arranged between the internal-combustion engine and the electric machine and comprises a first clutch and a second clutch;
- and
- a centrifugal mass between the first and second clutches,
- wherein for a start of the internal-combustion engine, the first clutch is closed with the second clutch open or closed.
A motor vehicle including a hybrid-drive device comprising:
- an internal-combustion engine;
- an electric machine;
- an impulse-start module which is arranged between the internal-combustion engine and the electric machine and comprises a first clutch and a second clutch;
- and
- a centrifugal mass between the first and second clutches,
- wherein for a start of the internal-combustion engine, the first clutch is closed with the second clutch open or closed.
Dependencies are inferred from the claim text.