Multiple inverter hybrid drive system
AssigneeFord Global Technologies, LLC
InventorsJiyao Wang, Wei Xu, Shuzhen Liu, Zhichun Ma
Life of this patent
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Abstract
A powertrain for a vehicle includes and electric machine and a plurality of inverters. The electric machine may include a stator defining a plurality of stator teeth separated by slots that are configured to accept windings. The plurality of inverters may each be configured to exclusively drive a current in some but not all of the windings within slots such that some of the plurality of stator teeth within a sector of the stator are configured to be energized by only one of the inverters.
Claims8
A vehicle powertrain comprising:
- an electric machine including a stator defining teeth separated by slots configured to accept windings;
- and
- four inverters each configured to exclusively drive current in some but not all of the windings such that the inverters respectively induce a field in some of the teeth located in a different one of four distinct sectors of the stator.
A vehicle powertrain comprising:
- an electric machine having a stator that includes windings;
- and
- four inverters each configured to exclusively drive current in some but not all of the windings such that each of the inverters induces a field in teeth of the stator located in one of four distinct sectors of the stator.
A method for a stator having sectors comprising:
- a first inverter inducing a first field in stator teeth of a first of the sectors;
- a second inverter inducing a second field in stator teeth of a second of the sectors;
- a third inverter inducing a third field in stator teeth of a third of the sectors;
- and
- a fourth inverter inducing a fourth field in stator teeth of a fourth of the sectors.
Dependencies are inferred from the claim text.