Wireless power supplying apparatus

• US 9,780,574 B2
• Filed: 04/03/2015
• Issued: 10/03/2017
• Est. Priority Date: 10/09/2012
• Status: Active Grant

• Current Assignee: IHI Corporation
• Original Assignee: IHI Corporation
• Inventors: Niizuma, Motonao
• Primary Examiner(s): Skibinski, Thomas
• Application Number:
  US14/678,054
• Publication Number:
  US 20150214751A1
• Time in Patent Office: 914 Days
• Field of Search: 307 91, 307 101, 320104, 320103, 320107-109
• CPC Class Codes: B60L 53/126 Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
• CPC Class Codes: B60L 53/36 by positioning the vehicle
• CPC Class Codes: B60M 7/003 for vehicles using stored power (e.g. charging stations)
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

A wireless power supplying apparatus includes: a power-transmitting coil that wirelessly supplies electric power to a power-receiving coil provided in a vehicle; a tire detection unit that detects tires of the vehicle; a moving mechanism that moves the position of the power-transmitting coil; and a control device that controls the moving mechanism on the basis of the detection result of the tire detection unit such that the power-receiving coil and the power-transmitting coil face each other.

Claims

1. A wireless power supplying apparatus comprising:

a power-transmitting coil configured to wirelessly supply electric power to a power-receiving coil provided in a vehicle;

a tire detector configured to detect a plurality of tires of the vehicle;

a moving mechanism configured to move a position of the power-transmitting coil; and

a controller configured to control the moving mechanism on the basis of a detection result of the tire detector such that the power-receiving coil and the power-transmitting coil face each other,

wherein the tire detector is a pressure sensor provided in a parking space having wheel stoppers,

the pressure sensor is provided in each of a plurality of regions dividing the wheel stopper in a direction perpendicular to a traveling direction of the vehicle, and

the controller controls a center position of the power-transmitting coil such that a center of the power-transmitting coil deviates from a center line of the parking space in a short-side direction by a sum of half of a difference between a distance from the center line to a right tire of the vehicle and a distance from the center line to a left tire of the vehicle and half of a difference between a distance from a center of the power-receiving coil to the left tire of the vehicle and a distance from the center of the power-receiving coil to the right tire of the vehicle, and

the controller is configured to stop the moving mechanism when the tire detector detects only one tire out of the plurality of tires.

2. A wireless power supplying apparatus comprising:

a power-transmitting coil configured to wirelessly supply electric power to a power-receiving coil provided in a vehicle;

a tire detector configured to detect a plurality of tires of the vehicle;

a moving mechanism configured to move a position of the power-transmitting coil; and

a controller configured to control the moving mechanism on the basis of a detection result of the tire detector such that the power-receiving coil and the power-transmitting coil face each other, wherein

the controller is configured to stop the moving mechanism when the tire detector detects only one tire out of the plurality of tires.