Wireless power transfer system parameter estimation
AssigneeFord Global Technologies, LLC
InventorsMohamed Elshaer, Chingchi Chen, John Paul Gibeau, Mark J. Ferrel
Life of this patent
Estimating the term…
Abstract
A vehicle is provided with a coil and a sensor. The coil is adapted to receive power wirelessly in single-phase form from an external coil. The sensor is adapted to measure a characteristic of the power. The vehicle is also provided with a controller that is programmed to estimate a parameter indicative of coil alignment using a three-phase representation of the power based on the characteristic, and to adjust the power received by the coil based on the parameter.
Claims20
A vehicle comprising:
- a coil adapted to receive power wirelessly in single-phase form from an external coil;
- a sensor adapted to measure a characteristic of the power;
- and
- a controller programmed to estimate a parameter indicative of coil alignment using a three-phase representation of the power based on the characteristic, and adjust the power received by the coil based on the parameter.
A power transfer system comprising:
- a coil adapted to receive power inductively from an external coil;
- an inverter coupled to the external coil;
- and
- a controller programmed to adjust at least one of a switching frequency and a phase shift angle of the inverter based on coil alignment estimated using a three-phase representation of the power.
A wireless power transfer (WPT) method comprising:
- receiving power wirelessly from an external source through coupled coils;
- measuring a characteristic of the power;
- generating a three-phase representation of the power based on the measured characteristic;
- estimating a parameter indicative of coil alignment using the three-phase representation;
- and
- adjusting the power based on the parameter.
Dependencies are inferred from the claim text.