Vehicle and contactless power transfer system

US2017166072A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2017166072-A1
Application numberUS-201615372864-A
CountryUS
Kind codeA1
Filing dateDec 8, 2016
Priority dateDec 15, 2015
Publication dateJun 15, 2017
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A vehicle includes a power receiving device, a power storage device, and an electronic control unit. A power receiving unit is configured to contactlessly receive electric power from a power transmitting unit of a power transmission device located outside the vehicle. The electronic control unit configured to set a charge start time at which the power storage device starts being charged, and start charging the power storage device with electric power received by the power receiving device irrespective of the charge start time, when the vehicle starts moving before the charge start time, from the condition where the position of the power receiving unit is adjusted relative to the power transmitting unit, and the vehicle is brought back into the condition where the position of the power receiving unit is adjusted relative to the power transmitting unit, within a predetermined time subsequent to start of movement of the vehicle.

First claim

Opening claim text (preview).

What is claimed is: 1 . A vehicle comprising: a power receiving device including a power receiving unit, the power receiving unit being configured to contactlessly receive electric power from a power transmitting unit of a power transmission device located outside the vehicle; a power storage device configured to store electric power received by the power receiving device; and an electronic control unit configured to: i) set a charge start time at which the power storage device starts being charged; ii) start charging the power storage device with electric power received by the electric power receiving device from the charge start time, when the vehicle is kept stopped in a condition where a position of the power receiving unit is adjusted relative to the power transmitting unit, until the charge start time comes; and iii) start charging the power storage device with electric power received by the power receiving device irrespective of the charge start time, when the vehicle starts moving before the charge start time, from the condition where the position of the power receiving unit is adjusted relative to the power transmitting unit, and the vehicle is brought back into the condition where the position of the power receiving unit is adjusted relative to the power transmitting unit, within a predetermined time subsequent to start of movement of the vehicle. 2 . The vehicle according to claim 1 , wherein the electronic control unit is configured to determine the condition where the position of the power receiving unit is adjusted relative to the power transmitting unit, based on a condition where an efficiency of electric power transmission between the power transmitting unit and the power receiving unit is equal to or higher than a predetermined value when electric power that is equal to or smaller than a predetermined power is transmitted from the power transmitting unit. 3 . A contactless power transfer system comprising: a vehicle including a power receiving device, a power storage device, and an electronic control unit, the power receiving device including a power receiving unit, the power storage device being configured to store electric power received by the power receiving device; a power transmission device located outside the vehicle, the power transmission device including a power transmitting unit, the power transmitting unit being configured to contactlessly transmit electric power to the power receiving unit of the power receiving device installed on the vehicle, wherein the power receiving unit of the power receiving device is configured to contactlessly receive electric power from the power transmission device located outside the vehicle, and the electronic control unit is configured to: i) set a charge start time at which the power storage device starts being charged; ii) start charging the power storage device with electric power received by the power receiving device from the charge start time, when the vehicle is kept stopped in a condition where a position of the power receiving unit is adjusted relative to the power transmitting unit, until the charge start time comes; and iii) start charging the power storage device with electric power received by the power receiving device irrespective of the charge start time, when the vehicle starts moving before the charge start time, from the condition where the position of the power receiving unit is adjusted relative to the power transmitting unit, and the vehicle is brought back into the condition where the position of the power receiving unit is adjusted relative to the power transmitting unit, within a predetermined time subsequent to start of movement of the vehicle. 4 . The contactless power transfer system according to claim 3 , wherein the electronic control unit is configured to determine the condition where the position of the power receiving unit is adjusted relative to the power transmitting unit, based on a condition where an efficiency of electric power transmission between the power transmitting unit and the power receiving unit is equal to or higher than a predetermined value when electric power that is equal to or smaller than a predetermined power is transmitted from the power transmitting unit.

Assignees

Inventors

Classifications

  • with prioritisation of loads or sources · CPC title

  • 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 title

  • Data transfer between charging stations and vehicles · CPC title

  • Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors · CPC title

  • B60L58/13Primary

    Maintaining the SoC within a determined range · CPC title

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Frequently asked questions

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What does patent US2017166072A1 cover?
A vehicle includes a power receiving device, a power storage device, and an electronic control unit. A power receiving unit is configured to contactlessly receive electric power from a power transmitting unit of a power transmission device located outside the vehicle. The electronic control unit configured to set a charge start time at which the power storage device starts being charged, and st…
Who is the assignee on this patent?
Toyota Motor Co Ltd
What technology area does this patent fall under?
Primary CPC classification B60L58/13. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Thu Jun 15 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).