# US 9,882,416 B2 · Power receiving body and vehicle equipped with power receiving body

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- Number: US 9,882,416 B2
- Document ID: US9882416B2
- Status: Granted
- Kind: B2
- Application number: 15/050,660
- Filed: 2016-02-23
- Published: 2016-08-25
- Granted: 2018-01-30
- Earliest claimed: 2015-02-25
- Assignees: Honda Motor Co., Ltd.
- Applicants: Honda Motor Co., Ltd.
- Inventors: Yusaku Amari
- Web page: https://patentgrep.com/patent/US9882416B2

## CPC

- B60L 53/124: Detection or removal of foreign bodies
- B60L 53/60: Monitoring or controlling charging stations
- H02J 50/12: of the resonant type
- H02J 50/70: involving the reduction of electric, magnetic or electromagnetic leakage fields
- H02J 50/90: involving detection or optimisation of position, e.g. alignment
- H02J 2105/37: exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV]
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 90/12: Electric charging stations
- Y02T 90/14: Plug-in electric vehicles
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## 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

### Claim 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.

### Claim 2 (depends on 1)

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.

### Claim 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.

### Claim 4 (depends on 3)

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.