Power supply device, vehicle and non-contact power supply system

• US 9,878,628 B2
• Filed: 03/24/2014
• Issued: 01/30/2018
• Est. Priority Date: 03/29/2013
• Status: Active Grant

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Tsukamoto, Yukinori
• Primary Examiner(s): Pelton, Nathaniel
• Application Number:
  US14/778,499
• Publication Number:
  US 20160288653A1
• Time in Patent Office: 1,408 Days
• Field of Search: 320108, 320109
• CPC Class Codes: B60L 2250/16 by display
• 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 53/14 Conductive energy transfer
• 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 53/62 in response to charging parameters, e.g. current, voltage or electrical charge
• CPC Class Codes: B60L 53/66 Data transfer between charging stations and vehicles
• 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 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/0045 concerning the insertion or the connection of the batteries
• 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

Abstract

A non-contact power supply control unit supplies power in a non-contact manner from a power transmission coil to a power reception coil to charge a battery of a vehicle. A contact power supply unit is electrically connected via a cable to a connection terminal of the vehicle to supply power to its battery. A controller controls the non-contact power supply control unit and the contact power supply unit. When the battery of a first vehicle is being charged by one non-contact power supply system of the non-contact power supply control unit and the contact power supply system of the contact power supply unit, and there is a request from a second vehicle for a power supply by another power supply system, the power supply by one power supply system is continued and the power supply by the other power supply system is put on standby.

Claims

1. A power supply device comprising:

a non-contact power supply unit configured to charge a battery of a vehicle by supplying power from a power transmission coil to a power reception coil in a non-contact manner by at least a magnetic coupling;

a contact power supply unit electrically connected to a connection terminal that is provided to a vehicle via a cable and supplies power to a battery of the vehicle; and

a controller configured to control the non-contact power supply control unit and the contact power supply unit, the controller being provided to the power supply device,

the controller being configured to continue a first power supply by one of the non-contact power supply system and the contact power supply system and put a second power supply by the other of the non-contact power supply system and the contact power supply system on standby, when a battery of a first vehicle is being charged by the first power supply and there is a request for the second power supply from a second vehicle,

the controller being configured to transmit a signal for stopping the power supply by the non-contact power supply system to the first vehicle, and to charge the battery with the power that is inputted from the connection terminal, when a connector of the cable is connected to the connection terminal of the first vehicle during the charging of the battery of the first vehicle by the non-contact power supply system, and

the controller being configured to continue the first power supply based on a determination that the first vehicle was being charged before the request was received from the second vehicle.

2. A non-contact power supply system provided with a vehicle comprising the power reception coil and a power supply device,

the power supply device comprising:

a non-contact power supply system configured to charge a battery of a vehicle by supplying power from a power transmission coil to a power reception coil in a non-contact manner by at least a magnetic coupling;

a contact power supply system electrically connected to a connection terminal that is provided to a vehicle via a cable and supplies power to a battery of the vehicle; and

a controller configured to control the non-contact power supply system and the contact power supply system,

the vehicle comprising;

a communication unit being configured to transmit a request signal that requests a power supply to the power supply device by wireless communication;

a connection terminal configured to be electrically connected to the power supply device via a cable;

a battery configured to be charged by the power of the power reception coil and the power that is inputted from the connection terminal via the cable; and

a vehicle side controller configured to control the communication unit, and

the power supply device side controller being configured to continue a first power supply by one of the non-contact power supply system and the contact power supply system and put a second power supply by the other of the non-contact power supply system and the contact power supply system on standby, when a battery of a first vehicle is being charged by the first power supply and there is a request for the second power supply from a second vehicle,

the power supply device side controller being configured to continue the first power supply based on a determination that the first vehicle was being charged before the request was received from the second vehicle, and

the vehicle side controller being configured to transmit a signal for stopping the power supply by the non-contact power supply system, and to charge the battery with the power that is inputted from the connection terminal when detecting that a connector of the cable has been connected to the connection terminal during the charging of the battery by a non-contact power supply system based on the power from the power reception coil.

3. A vehicle comprising:

a power reception coil configured to receive power in a non-contact manner from a power transmission coil that is provided to a power supply device by at least a magnetic coupling;

a communication unit being configured to transmit a request signal that requests a power supply to the power supply device by wireless communication;

a connection terminal configured to be electrically connected to the power supply device via a cable;

a battery configured to be charged by the power of the power reception coil and the power that is inputted from the connection terminal via the cable; and

a vehicle side controller configured to control the communication unit,

the vehicle side controller being configured to continue the charging of the battery while in a state in which there is a request for a power supply from another vehicle to the power supply device during the charging of the battery and in which the power supply of the other vehicle is standing by,

the vehicle side controller being configured to continue charging the battery while in a state in which there is a request for a power supply from a second vehicle to the power supply device during the charging of the battery and in which the power supply of the other vehicle is standing by,

the vehicle side controller being configured to continue the charging of the battery based on a determination that the vehicle was being charged before the request was received from the second vehicle, and

the vehicle side controller being configured to

transmit a signal for stopping the power supply by the non-contact power supply system, and charge the battery with the power that is inputted from the connection terminal when detecting that a connector of the cable has been connected to the connection terminal during the charging of the battery by a non-contact power supply system based on the power from the power reception coil.