WIRELESS CHARGING SYSTEM FOR AN ELECTRIC VEHICLE, AND CHARGING METHOD FOR SAME
First Claim
1. A wireless charging system for electric vehicles comprising:
- a power control device mounted in a wireless charging station for controlling each of wireless power transmitting devices;
at least one wireless power transmitting device connected to the power control device and mounted in a parking area;
a ground short-distance wireless communication module connected to the wireless power transmitting device and mounted in the parking area;
a plurality of wireless transmitting panel devices installed on the ground of the parking area, each of the wireless transmitting panel devices having a wireless charging panel and being operated in such a fashion that only the wireless transmitting panel device selected according to kinds of the corresponding vehicle based on charging information of the electric vehicle received through short-distance wireless communication on the ground is operated by the wireless power transmitting device;
a plurality of wireless receiving panel devices mounted on the lower part of the electric vehicle, each of the wireless receiving panel devices having a wireless receiving panel;
a wireless power receiver mounted in the electric vehicle for controlling the wireless receiving panel devices;
a wireless charging terminal connected to the wireless power receiver and mounted on a driver'"'"'s seat of the electric vehicle, the wireless charging terminal allowing the driver to select the wireless receiving panel device suitable for wireless charging out of the plural wireless receiving panel devices and to input an electronic payment;
a car short-distance wireless communication module mounted in the electric vehicle and connected to the wireless charging terminal; and
a charging controller connected to the wireless power receiver for controlling that electric power received from the wireless receiving panel device is charged to a battery of the electric vehicle.
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Abstract
The present invention relates to a wireless charging system for an electric vehicle and to a charging method for same, in which electric power is wirelessly supplied to the electric vehicle through a plurality of wireless transceiving panels to charge a battery, and only the wireless transceiving panel that is opposite the electric vehicle at an optimum condition in consideration of the type and parked position of the vehicle selectively operates to perform a wireless transceiving operation, thereby maximizing wireless charging efficiency. For this purpose, the present invention provides a wireless charging system for an electric vehicle and a charging method for same, wherein the wireless charging system comprises: a power control device installed in a wireless charging station to control each wireless power-transmitting device; a wireless power-transmitting device and a ground near field wireless communication module, which are installed in a parking area; a plurality of wireless power-transmitting devices installed on the ground of the parking area to select and operate a portion of wireless transmitting panels opposite the vehicle in accordance with electric vehicle charging information; a plurality of wireless receiving panels installed in the lower portion of the electric vehicle such that the panels are movable in the upward and downward directions; and a wireless power receiver, a wireless charging terminal, a near field communication module and a charge controller installed within the electric vehicle, thereby performing optimized wireless charging in accordance with the selection of a driver made via the wireless charging terminal.
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Citations
16 Claims
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1. A wireless charging system for electric vehicles comprising:
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a power control device mounted in a wireless charging station for controlling each of wireless power transmitting devices; at least one wireless power transmitting device connected to the power control device and mounted in a parking area; a ground short-distance wireless communication module connected to the wireless power transmitting device and mounted in the parking area; a plurality of wireless transmitting panel devices installed on the ground of the parking area, each of the wireless transmitting panel devices having a wireless charging panel and being operated in such a fashion that only the wireless transmitting panel device selected according to kinds of the corresponding vehicle based on charging information of the electric vehicle received through short-distance wireless communication on the ground is operated by the wireless power transmitting device; a plurality of wireless receiving panel devices mounted on the lower part of the electric vehicle, each of the wireless receiving panel devices having a wireless receiving panel; a wireless power receiver mounted in the electric vehicle for controlling the wireless receiving panel devices; a wireless charging terminal connected to the wireless power receiver and mounted on a driver'"'"'s seat of the electric vehicle, the wireless charging terminal allowing the driver to select the wireless receiving panel device suitable for wireless charging out of the plural wireless receiving panel devices and to input an electronic payment; a car short-distance wireless communication module mounted in the electric vehicle and connected to the wireless charging terminal; and a charging controller connected to the wireless power receiver for controlling that electric power received from the wireless receiving panel device is charged to a battery of the electric vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A charging method of a wireless charging system for electric vehicle comprising the steps of:
generating information of proximity sensors from the tire stopping device when an electric vehicle stops at the parking area;
operating the wireless power transmitting device and the ground short-distance wireless communication module based on the information of the proximity sensors;
operating the car short-distance wireless communication module through wireless communication with the ground short-distance wireless communication module and wirelessly transmitting charging information of the electric vehicle to the wireless power transmitting device and the wireless charging station;
operating the wireless charging terminal disposed on the driver'"'"'s seat through the car short-distance wireless communication module;
selecting and vertically ascending the panel suitable for wireless power transmission out of the plural wireless transmitting panels connected to the wireless power transmitting device according to the charging information of the electric vehicle;
operating the wireless power receiving device of the electric vehicle by the operation of the wireless charging terminal;
vertically lowering the panel corresponding to the wireless transmitting panel, which is vertically ascended, out of the wireless receiving panels mounted on the lower part of the electric vehicle according to the control of the wireless power receiving device;
recognizing the proximity sensors and the electronic tags disposed on each panel when the wireless transmitting panel and the wireless receiving panel are lifted up;
matching impedances or microwave frequencies of the electromagnetic coils of the wireless transmitting panel and the wireless receiving panel to achieve optimized wireless transmission and reception by transmitting communication information of the proximity sensors and the electronic tags to the wireless power transmitting device and the wireless power receiving device;
displaying the charging menus on the wireless charging terminal;
selecting the charging menu on the wireless charging terminal by the driver'"'"'s manipulation;
transmitting the driver'"'"'s selection information to the wireless charging station through communication between the car short-distance wireless communication module and the ground short-distance wireless communication module;
based on the driver'"'"'s selection information, respectively supplying electric power to the plural wireless transmitting panels selected by a control of the wireless power transmitting device connected to the wireless charging station;
based on the driver'"'"'s section information, receiving wireless electric power to the corresponding wireless receiving panels selected by a control of the wireless power receiver;
combining all electric power wirelessly received through the plural wireless receiving panels through the wireless power receiver and charging the battery of the electric vehicle through the charging controller;
displaying information on completion of charging on the wireless charging terminal when charging is finished;
allowing the driver to do electronic payment of charging fees through the wireless charging terminal; and
initializing the wireless charging system when the electronic payment is finished.
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16. A charging method of a wireless charging system for electric vehicle comprising the steps of:
Generating information of proximity sensors from the temporarily tire-stopping device when an electric vehicle stops at the parking area;
operating the wireless power transmitting device and the ground short-distance wireless communication module based on the information of the proximity sensors;
operating the car short-distance wireless communication module through wireless communication with the ground short-distance wireless communication module and wirelessly transmitting charging information of the electric vehicle to the wireless power transmitting device and the wireless charging station;
operating the wireless charging terminal disposed on the driver'"'"'s seat through the car short-distance wireless communication module;
based on the charging information of the electric vehicle, moving a panel carrier, which is suitable for wireless power transmission and reception, out of a plurality of panel carriers in all directions to the plural wireless receiving panels mounted on the lower end of the electric vehicle according to a control of the wireless power transmitting device;
vertically lifting each of the wireless transmitting panels mounted on the plural panel carriers selected and moved;
operating the wireless power receiving device of the electric vehicle by the operation of the wireless charging terminal;
vertically lowering the panel corresponding to the wireless transmitting panel, which is vertically ascended, out of the wireless receiving panels mounted on the lower part of the electric vehicle according to the control of the wireless power receiving device;
recognizing the proximity sensors and the electronic tags disposed on each panel when the wireless transmitting panel and the wireless receiving panel are lifted up;
matching impedances or microwave frequencies of the electromagnetic coils of the wireless transmitting panel and the wireless receiving panel to achieve optimized wireless transmission and reception by transmitting communication information of the proximity sensors and the electronic tags to the wireless power transmitting device and the wireless power receiving device;
displaying the charging menus on the wireless charging terminal;
selecting the charging menu on the wireless charging terminal by the driver'"'"'s manipulation;
transmitting the driver'"'"'s selection information to the wireless charging station through communication between the car short-distance wireless communication module and the ground short-distance wireless communication module;
based on the driver'"'"'s selection information, respectively supplying electric power to the plural wireless transmitting panels selected by a control of the wireless power transmitting device connected to the wireless charging station;
based on the driver'"'"'s section information, receiving wireless electric power to the corresponding wireless receiving panels selected by a control of the wireless power receiver;
combining all electric power wirelessly received through the plural wireless receiving panels through the wireless power receiver and charging the battery of the electric vehicle through the charging controller;
displaying information on completion of charging on the wireless charging terminal when charging is finished;
allowing the driver to do electronic payment of charging fees through the wireless charging terminal; and
initializing the wireless charging system when the electronic payment is finished.
Specification