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US 8,776,929 B2Granted
Hybrid power system with bidirectional machine at flywheel
AssigneeDeere & Company
InventorsSean P. West, Mark J. Cherney
Life of this patent
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Abstract
A hybrid power system for a vehicle which may include an internal combustion engine and a supplemental energy system for converting the mechanical energy generated by the engine to electrical energy and storing it as opportunity provides; and using the stored electrical energy to augment engine output as necessary. The supplemental energy system may include a motor-generator engaged with a flywheel.
Claims9
A hybrid power system for a work vehicle having a power train and wheels for propelling the vehicle, the hybrid power system comprising:
- an engine;
- a flywheel with flywheel teeth;
- a flywheel housing;
- a first mounting flange;
- a second mounting flange;
- a starter engaged with the flywheel via the first mounting flange;
- a rechargeable electrical energy storage system;
- a bidirectional machine engaged with the flywheel via the second mounting flange such that a movement of the flywheel may result in a movement of a portion of the bidirectional machine and a movement of the portion of the bidirectional machine results in the movement of the flywheel, the bidirectional machine comprising a motor-generator and an AC-DC converter, the bidirectional machine converting mechanical energy to electrical energy and supplying the electrical energy to the rechargeable electrical energy storage system for storage in a first mode and receiving electrical energy from the rechargeable electrical energy storage system and converting it to mechanical energy to supplement engine output in a second mode.
5 more elements
Dependencies are inferred from the claim text.