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US 12,233,716 B2Granted
Automotive electric drive with three phase coupled inverter
AssigneeFord Global Technologies, LLC
InventorsBaoming Ge, Lihua Chen, Serdar Hakki Yonak
Life of this patent
Estimating the term…
Abstract
A vehicle power system includes an inverter electrically connected between a traction battery and electric machine, a three phase coupled inductor electrically connected between the traction battery and inverter, and one or more controllers that operate the inverter while a common mode voltage at a neutral point of the electric machine is constant.
Claims19
A vehicle comprising:
- a traction battery;
- an electric machine;
- an inverter electrically connected between the traction battery and electric machine, wherein the inverter includes three capacitors and three pairs of series connected switches each defining a phase leg and wherein each of the capacitors is in parallel with one of the phase legs and electrically connected between the one of the phase legs and electric machine;
- and
- a three phase coupled inductor electrically connected between the traction battery and inverter.
2 more elements
An automotive electric drive system comprising:
- an inverter including three pairs of series connected switches each defining a phase leg and three capacitors, each of the capacitors being in parallel with one of the phase legs;
- a three phase coupled inductor including three coils, each of the coils including a terminal electrically connected between one of the pairs of series connected switches such that the switches are electrically between the capacitors and three phase coupled inductor;
- and
- one or more controllers programmed to operate the switches while a voltage input at the three phase coupled inductor is less than a voltage output at the inverter.
1 more element
A vehicle comprising:
- a traction battery;
- an electric machine;
- an inverter electrically connected between the traction battery and electric machine,
- three inductors electrically connected between the traction battery and inverter;
- and
- one or more controllers programmed to operate the inverter while a common mode voltage at a neutral point of the electric machine is constant.
3 more elements
Dependencies are inferred from the claim text.