View source for 18267269. DISTANCE ESTIMATION METHOD FOR FINE POSITIONING FOR ELECTRIC VEHICLE WIRELESS POWER TRANSFER, AND DISTANCE ESTIMATION APPARATUS USING SAME simplified abstract (Kia Corporation)

=DISTANCE ESTIMATION METHOD FOR FINE POSITIONING FOR ELECTRIC VEHICLE WIRELESS POWER TRANSFER, AND DISTANCE ESTIMATION APPARATUS USING SAME=


==Organization Name==

[[:Category:Kia Corporation|Kia Corporation]]


[[Category:Kia Corporation]]

==Inventor(s)==

[[:Category:Jae Yong Seong of Hwaseong, Gyeonggi-do (KR)|Jae Yong Seong of Hwaseong, Gyeonggi-do (KR)]][[Category:Jae Yong Seong of Hwaseong, Gyeonggi-do (KR)]]

==DISTANCE ESTIMATION METHOD FOR FINE POSITIONING FOR ELECTRIC VEHICLE WIRELESS POWER TRANSFER, AND DISTANCE ESTIMATION APPARATUS USING SAME - A simplified explanation of the abstract==


This abstract first appeared for US patent application 18267269 titled 'DISTANCE ESTIMATION METHOD FOR FINE POSITIONING FOR ELECTRIC VEHICLE WIRELESS POWER TRANSFER, AND DISTANCE ESTIMATION APPARATUS USING SAME

==Simplified Explanation==

The method described in the abstract is for estimating distance using low frequency signals during fine positioning for electric vehicle wireless power transfer. 

* Restricting the position of the first transmitter of an EV to a point on a straight line towards the center of the power supply device.
* Restricting the position of the second transmitter of the EV to a point on a straight line towards the center of the power supply device.
* Compensating for the distance between the transmitters based on the time difference of LF signals arriving at the primary device.
* Calculating the positions of the transmitters based on the distances from starting points on the straight lines to the transmitters.

### Potential Applications
- Electric vehicle wireless power transfer systems
- Autonomous vehicle charging stations

### Problems Solved
- Accurate distance estimation for fine positioning in wireless power transfer systems
- Improved efficiency in electric vehicle charging

### Benefits
- Enhanced accuracy in positioning of electric vehicle transmitters
- Increased efficiency in wireless power transfer for electric vehicles


==Original Abstract Submitted==

A method for estimating distance using low frequency (LF) signals when performing fine positioning for electric vehicle (EV) wireless power transfer (WPT) includes steps of: restricting a position of a first transmitter of an EV to a point on a first straight line extending towards a center of a primary device of a power supply device; restricting a position of a second transmitter of the EV to a point on a second straight line extending towards the center of the primary device; compensating, on the first straight line or the second straight line, for the distance between the first transmitter and the second transmitter based on the time difference of LF signals arriving at the primary device; and calculating the positions of the first and second transmitters such that first and second distances from starting points on the first and second straight lines to the first and transmitters, respectively.



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