POWER RECEIVING BODY AND VEHICLE EQUIPPED WITH POWER RECEIVING BODY

• US 20160248271A1
• Filed: 02/23/2016
• Published: 08/25/2016
• Est. Priority Date: 02/25/2015
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Amari, Yusaku
• Granted Patent: US 9,882,416 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 53/124 Detection or removal of foreign bodies
• CPC Class Codes: B60L 53/60 Monitoring or controlling charging stations
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• 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 power receiving body and a vehicle including the power receiving body are provided, in which an object detection range, which corresponds to a non-contact charging condition between a power supplying coil and a power receiving coil, is set, together with variably setting the object detection range corresponding to a leakage magnetic field area.

Claims

1. A power receiving body equipped with a non-contact charging device that charges a storage battery by receiving power from a power supplying coil in a non-contact manner by a power receiving coil, comprising:

a peripheral object detecting unit configured to be capable of detecting an object within a periphery of the power receiving coil;

an object detection range setting unit configured to variably set an object detection range of the peripheral object detecting unit; and

a leakage magnetic field area estimating unit configured to estimate a leakage magnetic field area in which a magnetic field intensity by the power supplying coil becomes equal to or greater than a predetermined value, responsive to a non-contact charging state between the power supplying coil and the power receiving coil;

wherein the object detection range setting unit is configured to set the object detection range variably corresponding to a position of the leakage magnetic field area, and to set the object detection range to be greater than the leakage magnetic field area that is estimated by the leakage magnetic field area estimating unit.

2. The power receiving body according to claim 1, wherein the object detection range setting unit is configured to set the object detection range using at least one of a positional shift amount between the power supplying coil and the power receiving coil, a storage battery voltage, and an output power of the power supplying coil.

3. A vehicle equipped with a non-contact charging device that charges a storage battery by receiving power from a power supplying coil in a non-contact manner by a power receiving coil, comprising:

a peripheral object detecting unit configured to be capable of detecting an object within a periphery of the power receiving coil which is provided on a lower surface of the vehicle;

an object detection range setting unit configured to variably set an object detection range of the peripheral object detecting unit; and

a leakage magnetic field area estimating unit configured to estimate a leakage magnetic field area in which a magnetic field intensity by the power supplying coil becomes equal to or greater than a predetermined value, responsive to a non-contact charging state between the power supplying coil and the power receiving coil;

wherein the object detection range setting unit is configured to set the object detection range variably corresponding to a position of the leakage magnetic field area, and to set the object detection range to be greater than the leakage magnetic field area that is estimated by the leakage magnetic field area estimating unit.

4. The vehicle according to claim 3, wherein the object detection range setting unit is configured to set the object detection range using at least one of a positional shift amount between the power supplying coil and the power receiving coil, a storage battery voltage, and an output power of the power supplying coil.