Integrated starter-generator device with power transmission
AssigneeDeere & Company
InventorsChristopher D. Turner, John N. Oenick, Tony J. Huegerich
Life of this patent
Estimating the term…
Abstract
A combination engine starter and electric power generator device for a work vehicle has an electric machine and a gear set mounted to the electric machine. The gear set is configured to receive rotational input from the electric machine and from the work vehicle engine. The gear set mechanically couples the electric machine and the engine in first and second power flow directions in which in the first power flow direction the gear set effects a first gear ratio and in the second power flow direction the gear set effects a second gear ratio.
Claims20
A combination engine starter and power generator device for a work vehicle having an engine, the device comprising:
- an electric machine;
- and
- a gear set mounted to the electric machine and configured to receive rotational input from the electric machine and from the engine and to mechanically couple the electric machine and the engine in first and second power flow directions in which in the first power flow direction the gear set effects a first gear ratio and in the second power flow direction the gear set effects a second gear ratio.
A combination engine starter and electric power generator device for a work vehicle having an engine, the device comprising:
- a housing;
- an electric machine at least in part contained in the housing;
- and
- a transmission at least in part contained in the housing, the transmission including:
- a gear set configured to receive rotational input from the electric machine and from the engine and mechanically couple the electric machine and the engine in first and second power flow directions in which in the first power flow direction the gear set effects a first gear ratio and in the second power flow direction the gear set effects a second gear ratio;
- and
- a clutch assembly mechanically coupled to the gear set, the clutch assembly including:
- a first one-way clutch that is engaged when the gear set moves in the first power flow direction and is disengaged when the gear set moves in the second power flow direction;
- and
- a second one-way clutch that is engaged when the gear set moves in the second power flow direction and is disengaged when the gear set moves in the first power flow direction.
A drivetrain assembly for a work vehicle, comprising:
- an engine;
- and
- a combination starter and generator device, the device including:
- an electric machine;
- and
- a gear set mounted to the electric machine and configured to receive rotational input from the electric machine and from the engine and to mechanically couple the electric machine and the engine in first and second power flow directions in which in the first power flow direction the gear set effects a first gear ratio and in the second power flow direction the gear set effects a second gear ratio.
Dependencies are inferred from the claim text.