Electrified vehicle

US11104240B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11104240-B2
Application numberUS-201916566340-A
CountryUS
Kind codeB2
Filing dateSep 10, 2019
Priority dateNov 7, 2018
Publication dateAug 31, 2021
Grant dateAug 31, 2021

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  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.

An electrified vehicle includes a system main relay attached to an electric power line for motive power and a charging relay attached to a charging electric power line through which a portion of the electric power line for motive power positioned between the system main relay and a drive circuit and a vehicle-side connection portion connected to a station-side connection portion of a direct current charging station are connected to each other. When the vehicle-side connection portion and the station-side connection portion are disconnected from each other while an electric storage device is being charged with electric power from the direct current charging station, diagnosis about double-pole welding abnormality of the charging relay is performed after the charging relay is turned off with the system main relay being in a turned-on state and the system main relay is turned off after the diagnosis.

First claim

Opening claim text (preview).

What is claimed is: 1. An electrified vehicle comprising: an electric motor configured to output motive power for traveling; a drive circuit configured to drive the electric motor; an electric storage device; a system main relay attached to an electric power line for motive power through which the electric storage device and the drive circuit are connected to each other; a vehicle-side connection portion configured to be connected to a station-side connection portion of a direct current charging station outside the electrified vehicle; a charging relay attached to a charging electric power line through which a portion of the electric power line for motive power positioned between the system main relay and the drive circuit and the vehicle-side connection portion are connected to each other; and a control device configured to control the system main relay and the charging relay, wherein, when the vehicle-side connection portion and the station-side connection portion are disconnected from each other while the control device determines that a charging of the electric storage device is being charged with by electric power from the direct current charging station is not finished normally, the control device turns the charging relay off with the system main relay being in a turned-on state to perform a diagnosis of double-pole welding abnormality of the charging relay and turns the system main relay off after the diagnosis. 2. The electrified vehicle according to claim 1 , wherein the control device performs the diagnosis of the double-pole welding abnormality of the charging relay by using a voltage of a portion of the charging electric power line positioned between the charging relay and the vehicle-side connection portion.

Assignees

Inventors

Classifications

  • relating to electric energy storage systems, e.g. batteries or capacitors · CPC title

  • B60L50/60Primary

    using power supplied by batteries (in combination with fuel cells B60L50/75) · CPC title

  • Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles · CPC title

  • Electric charging stations · CPC title

  • B60L53/60Primary

    Monitoring or controlling charging stations · CPC title

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Frequently asked questions

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What does patent US11104240B2 cover?
An electrified vehicle includes a system main relay attached to an electric power line for motive power and a charging relay attached to a charging electric power line through which a portion of the electric power line for motive power positioned between the system main relay and a drive circuit and a vehicle-side connection portion connected to a station-side connection portion of a direct cur…
Who is the assignee on this patent?
Toyota Motor Co Ltd
What technology area does this patent fall under?
Primary CPC classification B60L50/60. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Aug 31 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).