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US 2015/0303837 A1Published application
Controlling magnetic flux in an automotive electric machine
AssigneeFord Global Technologies, LLC
InventorsKYLE M. HANSON, EDWARD W. HARAN
Life of this patent
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Abstract
A method of compensating for magnetic flux resulting from variance from a first electric machine to a second electric machine. A magnetic flux change for the first machine is calculated as a function of a flux difference between the first machine and the second machine. Operation of the first machine is controlled using the magnetic flux change.
Claims20
A method of controlling a first automotive electric machine comprising:
- adjusting operation of the first machine based on a magnetic flux change for the first machine that is a function of a back electromotive force difference between the first machine and a second electric machine.
A method of controlling a first automotive electric machine comprising:
- adjusting operation of the machine based on a magnetic flux change for the machine that is a function of a back electromotive force of the machine compared to a baseline back electromotive force.
A method of controlling a first automotive electric machine comprising:
- measuring a magnetic flux difference between the first and a second electric machine after assembly of the first machine but before assembly into a vehicle;
- adjusting operation of the first machine in the vehicle based on a magnetic flux change for the first machine that is a function of the flux difference.
Dependencies are inferred from the claim text.