Inline electromechanical variable transmission system
AssigneeOshkosh Corporation
InventorsDavid J. Steinberger, Jon J. Morrow, Andrew J. Kotloski, Eric E. Braun
Life of this patent
Estimating the term…
Abstract
A drive system for a vehicle includes a first electromagnetic device directly coupled to a first planetary gear set and a second electromagnetic device directly coupled to a second planetary gear set. In a first mode of operation, a clutch is engaged to couple the second planetary gear set to the first planetary gear set and a brake is disengaged to allow rotation of the second planetary gear set and in a second mode of operation, the brake is engaged to limit rotation of the second planetary gear set and the clutch is disengaged.
Claims12
A drive system for a vehicle, comprising:
- a first electromagnetic device directly coupled to a first planetary gear set;
- and
- a second electromagnetic device directly coupled to a second planetary gear set;
- wherein:
- the first planetary gear set is directly coupled to a primary mover of the vehicle via a connecting shaft;
- the first planetary gear set and the second planetary gear set are radially aligned with the connecting shaft;
- in a first mode of operation, a clutch is engaged to couple the second planetary gear set to the first planetary gear set and a brake is disengaged to allow rotation of the second planetary gear set;
- in a second mode of operation, the brake is engaged to limit rotation of the second planetary gear set and the clutch is disengaged;
- and
- in a third mode of operation, both the clutch and the brake are disengaged such that the connecting shaft is driven by the primary mover without providing output power to tractive elements of the vehicle.
A drive system for a vehicle, comprising:
- a first electromagnetic device coupled to a first gear set;
- a second electromagnetic device coupled to a second gear set;
- an output shaft coupled to the first gear set, wherein the output shaft is configured to transport power from the first electromagnetic device and the second electromagnetic device to a tractive element of the vehicle;
- a clutch positioned to selectively rotationally couple a sun gear of the second gear set to the first gear set when engaged;
- a brake positioned to selectively limit movement of a ring gear of the second gear set when engaged;
- and
- a connecting shaft directly coupling a primary mover of the vehicle to the ring gear of the second gear set.
Dependencies are inferred from the claim text.