Charging apparatus and non-contact power feeding apparatus

• US 10,086,712 B2
• Filed: 05/30/2014
• Issued: 10/02/2018
• Est. Priority Date: 06/26/2013
• Status: Active Grant

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Tsukamoto, Yukinori
• Primary Examiner(s): Smith, Isaac G
• Application Number:
  US14/392,196
• Publication Number:
  US 20160159226A1
• Time in Patent Office: 1,586 Days
• Field of Search: 701 22
• CPC Class Codes: B60L 15/2072 for drive off
• CPC Class Codes: B60L 2240/28 Door position
• CPC Class Codes: B60L 2250/24 by lever actuation
• 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 53/12 Inductive energy transfer
• 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 53/62 in response to charging parameters, e.g. current, voltage or electrical charge
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• 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 7/00712 the cycle being controlled or terminated in response to electric parameters
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• 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 10/72 Electric energy management in electromobility
• 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

There is provided a vehicle-side charging apparatus disposed in a vehicle (2). The charging apparatus includes a power receiving coil (21) which receives power from a power transmitting coil (11) disposed in a power feeding apparatus (1) in a non-contacting manner through at least magnetic coupling, a battery (25) which is charged by reception power of the power receiving coil (21), and a vehicle-side controller (20) which controls battery charge of the battery and outputs a command of a power feeding amount to the power feeding apparatus. The power feeding amount is an amount of power feeding from the power transmitting coil to the power receiving coil. The vehicle-side controller (20) determines whether or not the vehicle (2) is to be started. The vehicle-side controller (20) outputs a command for decreasing the power feeding amount to the power feeding apparatus (1) when the vehicle-side controller (20) determines that the vehicle (2) is to be started during the power feeding from the power transmitting coil (11) to the power receiving coil (21).

Claims

1. A charging apparatus disposed in a vehicle, the charging apparatus comprising:

a power receiving coil configured to receive power from a power transmitting coil disposed in a power feeding apparatus in a non-contacting manner through at least magnetic coupling in a state in which the power receiving coil is in a position above the power transmitting coil maintaining a distance from the power receiving coil to the power transmitting coil disposed on a parking space;

a battery charged by reception power of the power receiving coil;

a power switch switching among a ready state in which the vehicle can travel, an on state in which the vehicle cannot travel and electric components of the vehicle can be used, and an off state in which the vehicle cannot travel and the electric components cannot be used; and

a vehicle-side controller configured to control charge of the battery and outputting a command of a power feeding amount to the power feeding apparatus, the power feeding amount being an amount of power feeding from the power transmitting coil to the power receiving coil;

wherein the vehicle-side controller;

detects a state of the power switch during power feeding from the power transmitting coil to a power receiving coil,

determines whether or not the power switch switches from the off state to the on state or whether or not the power switch switches from the off state to the ready state during power feeding from the power transmitting coil to the power receiving coil; and

outputs a command for decreasing the power feeding amount to the power feeding apparatus when the power switch switches from the off state to the on state or when the power switch switches from the off state to the ready state during power feeding from the power transmitting coil to the power receiving coil.