NON-CONTACT POWER SUPPLY SYSTEM

• US 20160280078A1
• Filed: 03/24/2014
• Published: 09/29/2016
• Est. Priority Date: 03/29/2013
• Status: Active Grant

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: TSUKAMOTO, Yukinori
• Granted Patent: US 10,220,715 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 2270/32 of electricity
• CPC Class Codes: B60L 3/00 Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption methods or circuit arrangements for monitoring or controlling batteries or fuel cells B60L58/00
• CPC Class Codes: B60L 53/122 Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
• 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 53/305 Communication interfaces
• CPC Class Codes: B60L 53/31 Charging columns specially adapted for electric vehicles
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• 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 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• 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
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y02T 90/167 : Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

A non-contact power supply system supplies power in a non-contact manner from a power transmission coil of a vehicle to a power reception coil of a power supply device. The power supply device has a power supply side recording means unit records information, a power supply side communication unit that communicates with the vehicle, and a power supply side controller that controls the power output from a power source to the power transmission coil. Vehicle identification information is recorded to the power supply side recording unit during the power supply or during preparation for the power supply to the power reception coil. The power supply side controller cross-checks the vehicle identification information and vehicle information transmitted from the vehicle when the power supply to the power reception coil is stopped before the power supply to the power reception coil is ended normally.

Claims

1. A non-contact power supply system that supplies power between a power reception coil that is provided to a vehicle and a power transmission coil that is provided to a power supply device in a non-contact manner by means of at least a magnetic coupling, the non-contact power supply system comprising

the power supply device comprising:

a power supply side recording unit configured to record the vehicle identification information, which represents the identification information of the vehicle;

a power supply side communication unit being configured to perform the communication with the vehicle; and

a power supply side controller for controlling power that is outputted from a power source to the power transmission coil,

the vehicle identification information being recorded in the power supply side recording means is the vehicle identification information of the vehicle in which a paired communication has been established between the power supply device and the vehicle, and

the power supply side controller being configured to cross-check the vehicle identification information that is transmitted from the vehicle after stopping the power supply and the vehicle identification information that is recorded in the power supply side recording unit, if the power supply is stopped before the power supply to the power reception coil is ended normally, and restarts the non-contact power supply from the power transmission coil to the power reception coil, if the vehicle identification information match.

3. The non-contact power supply system according to claim 1, wherein

the vehicle comprises:

a vehicle side recording unit configured to record the power supply device identification information, which represents the identification information of the power supply device;

a vehicle side communication unit configured to perform the communication with the power supply device;

a battery charged by the power received from the power reception coil; and

a vehicle side controller for controlling the charging of the battery, and

the power supply device identification information being recorded in the vehicle side recording unit during charging or during preparation for charging of the battery.

4. The non-contact power supply system according to claim 3, wherein

if the power supply is stopped before the power supply to the power reception coil is ended normally,

the power supply device identification information is kept in the vehicle side recording unit.

5. The non-contact power supply system according to claim 1, wherein

the vehicle comprises:

a battery charged by the power received from the power reception coil;

a vehicle side controller for controlling the charging of the battery;

a detection unit being configured to detect power that is received by the power reception coil; and

an activation unit being configured to activate the vehicle side controller, based on the detection value of the detection unit.

6. The non-contact power supply system according to claim 1, wherein

the vehicle identification information is kept in the power supply side recording unit if the power supply is stopped before the power supply to the power reception coil is ended normally.

7. The non-contact power supply system according to claim 3, wherein

the vehicle comprises:

a battery charged by the power received from the power reception coil;

a vehicle side controller for controlling the charging of the battery;

a detection unit being configured to detect power that is received by the power reception coil; and

an activation unit being configured to activate the vehicle side controller, based on the detection value of the detection unit.

8. The non-contact power supply system according to claim 4, wherein

the vehicle comprises:

a battery charged by the power received from the power reception coil;

a vehicle side controller for controlling the charging of the battery;

a detection unit being configured to detect power that is received by the power reception coil; and

an activation unit being configured to activate the vehicle side controller, based on the detection value of the detection unit.

9. The non-contact power supply system according to claim 3, wherein

the vehicle identification information is kept in the power supply side recording unit if the power supply is stopped before the power supply to the power reception coil is ended normally.

10. The non-contact power supply system according to claim 4, wherein

the vehicle identification information is kept in the power supply side recording unit if the power supply is stopped before the power supply to the power reception coil is ended normally.

11. The non-contact power supply system according to claim 5, wherein

the vehicle identification information is kept in the power supply side recording unit if the power supply is stopped before the power supply to the power reception coil is ended normally.

2. (canceled)