Method and apparatus for controlling electric motors

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11843313
APP PUB NO 20230031142A1
SERIAL NO

17658100

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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There is described a method of controlling an inverter supplying power to a permanent magnet AC, PMAC, motor having a plurality of phase windings, The method comprises: selecting a first phase winding of the PMAC motor; electrically connecting the first phase winding to a first DC terminal of a DC link circuit at a first time, and maintaining the connection between the first phase winding and the first DC terminal: determining a flux difference between the first phase winding and a second phase winding of the PMAC motor; selecting a second time to electrically connect the second phase winding to the first DC terminal; electrically connecting the second phase winding to the first DC terminal at the second time; and maintaining the connection between the second phase winding and the first DC terminal. The second time is selected based on the determined flux difference.

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Patent Owner(s)

Patent OwnerAddress
BORGWARNER GATESHEAD LIMITEDGATESHEAD NE11 0QA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dunn, Jack Auckland, GB 1 0
Thompson, Ken Northumberland, GB 6 443
Zhou, Jolene Gateshead, GB 1 0

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