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US 2017/0257047 A1Published application
Control of alternator with front end accessory drive
AssigneeFord Global Technologies, LLC
InventorLarry Dean Elie
Life of this patent
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Abstract
Control of alternator/starters for providing electrical power to a vehicle and rotating an engine is disclosed. In one example, the alternator/starter provides a differential action whereby torque on an input side of the alternator may be maintained while speed of an output side of the alternator may be varied. The alternator/starter includes two armature windings and two field windings.
Claims20
An electrical machine, comprising:
- a housing;
- a first field winding within the housing;
- a first armature winding;
- a second field winding, the first field winding and the first armature winding at least partially wrapped by the second field winding;
- a second armature winding, the first field winding and the first armature winding at least partially wrapped by the second armature winding;
- and
- a controller including non-transitory instructions to adjust current supplied to the second field winding to control a speed of a front end accessory device.
4 more elements
An electrical machine, comprising:
- a housing;
- a first field winding supported via a first field winding support in the housing;
- a first armature winding;
- a second field winding;
- a second armature winding, the second armature winding supported via a second armature winding support, the second armature winding support mechanically coupled to the first field winding support, the second armature winding at least partially wrapped by the second field winding;
- and
- a controller including non-transitory instructions to adjust field current supplied to the first field winding and current supplied to the second field winding in response to a front end accessory drive load.
4 more elements
An electrical machine, comprising:
- a housing;
- a first field winding within the housing;
- a first armature winding;
- a second field winding;
- a second armature winding, the first armature winding and the second armature winding supported via a sole armature winding support;
- and
- a controller including non-transitory instructions to divide an output of two alternators comprising the electrical machine such that a first alternator of the electric machine outputs a same amount of power to devices external to the electric machine as a second alternator of the electric machine.
4 more elements
Dependencies are inferred from the claim text.