18267269. DISTANCE ESTIMATION METHOD FOR FINE POSITIONING FOR ELECTRIC VEHICLE WIRELESS POWER TRANSFER, AND DISTANCE ESTIMATION APPARATUS USING SAME simplified abstract (Hyundai Motor Company)
DISTANCE ESTIMATION METHOD FOR FINE POSITIONING FOR ELECTRIC VEHICLE WIRELESS POWER TRANSFER, AND DISTANCE ESTIMATION APPARATUS USING SAME
Organization Name
Inventor(s)
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 patent application involves estimating distance using low frequency signals for fine positioning during wireless power transfer for electric vehicles.
- 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 another straight line towards the center of the power supply device.
- Compensating for the distance between the two transmitters based on the time difference of LF signals reaching the power supply device.
- Calculating the positions of the transmitters based on the distances from their starting points on the straight lines.
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- Potential Applications
- Electric vehicle wireless power transfer systems
- Fine positioning systems for various applications
- Problems Solved
- Accurate distance estimation for fine positioning
- Efficient wireless power transfer for electric vehicles
- Benefits
- Improved accuracy in positioning
- Enhanced efficiency in wireless power transfer
- Potential for increased convenience and safety in electric vehicle charging.
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.
