# US 12,191,682 B2 · Power feeding station

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- Number: US 12,191,682 B2
- Document ID: US12191682B2
- Status: Granted
- Kind: B2
- Application number: 18/048,868
- Filed: 2022-10-24
- Published: 2023-05-11
- Granted: 2025-01-07
- Earliest claimed: 2021-11-11
- Assignees: OMRON Corporation
- Applicants: OMRON Corporation
- Inventors: Katsumi Matsushita; Hiroyuki Mino; Atsushi Nomura; Kenichi Tabata; Daiki Ando
- Web page: https://patentgrep.com/patent/US12191682B2

## CPC

- H02J 50/90: involving detection or optimisation of position, e.g. alignment
- B60L 50/20: using propulsion power generated by humans or animals
- B60L 53/12: Inductive energy transfer
- B60L 53/22: Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
- B60L 53/31: Charging columns specially adapted for electric vehicles
- B60L 53/36: by positioning the vehicle
- B60L 53/38: specially adapted for charging by inductive energy transfer
- B60L 53/66: Data transfer between charging stations and vehicles
- H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J 50/10: using inductive coupling
- H02J 50/12: of the resonant type
- H02J 50/80: involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
- B60L 2200/12: Bikes
- 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
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- 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
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A power feeding station according to one or more embodiments may include a feeder including a feeder coil that feeds power to a receiver in an electric mobility vehicle, a power supply circuit that supplies AC power to the feeder coil, and a control circuit that controls a frequency and a voltage of the AC power. The control circuit provides, through a notification source a notification of guidance about a stop position of the electric mobility vehicle relative to a housing to increase power transmission efficiency from the feeder to the receiver in accordance with the frequency of the AC power supplied to the feeder coil with which the receiver outputs a constant voltage or in accordance with the voltage of the AC power supplied to the feeder coil with which the receiver outputs a constant and predetermined voltage.

## Claims

### Claim 1

A power feeding station for feeding power to a receiver comprising a receiver coil comprised in an electric mobility vehicle, the power feeding station comprising:
a feeder configured to feed power to the electric mobility vehicle through the receiver coil; and
a housing defining a predetermined parking position of the electric mobility vehicle and accommodating the feeder, wherein
the feeder comprises
a feeder coil configured to feed power to the receiver through the receiver coil,
a power supply circuit configured to supply alternating current power to the feeder coil, and
a control circuit configured to control a frequency and a voltage of the alternating current power supplied to the feeder coil, and
the control circuit:
determines whether a first parking position of the electric mobility vehicle relative to the housing is to be changed based on a detected value of the frequency of the alternating current power supplied to the feeder coil that allows the receiver to perform a constant voltage output operation, and
based on the detected frequency, provides, through a notification source comprised in the power feeding station or in the electric mobility vehicle, a notification of guidance about a stop position of the electric mobility vehicle relative to the housing to increase power transmission efficiency from the feeder to the receiver in accordance with the detected frequency of the alternating current power with which the receiver outputs a constant voltage or in accordance with the voltage of the alternating current power with which the receiver outputs a constant and predetermined voltage.

### Claim 2 (depends on 1)

The power feeding station according to claim 1, wherein
the control circuit provides, through the notification source, the notification of guidance about the stop position of the electric mobility vehicle to allow the feeder coil and the receiver coil to be nearer each other when the alternating current power with which the receiver outputs a constant voltage has a frequency lower than a predetermined frequency threshold.

### Claim 3 (depends on 1)

The power feeding station according to claim 1, wherein
the control circuit provides, through the notification source, the notification of guidance about the stop position of the electric mobility vehicle to allow the feeder coil and the receiver coil to be nearer each other when the alternating current power with which the receiver outputs a constant and predetermined voltage has a higher voltage than a predetermined voltage threshold.

### Claim 4 (depends on 1)

The power feeding station according to claim 1, wherein
the control circuit records a temporal change in the frequency of the alternating current power with which the receiver outputs a constant voltage, determines, in accordance with the temporal change in the frequency, a direction in which the electric mobility vehicle is to be moved relative to the housing to increase power transmission efficiency from the feeder to the receiver, and provides, through the notification source, a notification to move the electric mobility vehicle in the direction.

### Claim 5 (depends on 1)

The power feeding station according to claim 1, wherein the control circuit records a temporal change in the voltage of the alternating current power with which the receiver outputs a constant and predetermined voltage, determines, in accordance with the temporal change in the voltage, a direction in which the electric mobility vehicle is to be moved relative to the housing to increase power transmission efficiency from the feeder to the receiver, and provides, through the notification source, a notification to move the electric mobility vehicle in the direction.
