Motor drive apparatus for vehicle and motor vehicle

US9102226B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9102226-B2
Application numberUS-201013393561-A
CountryUS
Kind codeB2
Filing dateAug 26, 2010
Priority dateSep 8, 2009
Publication dateAug 11, 2015
Grant dateAug 11, 2015

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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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  7. Citations and related patents

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Abstract

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A motor drive apparatus for a vehicle is provided which can prevent its transmission and motor from being rotated by vehicle wheels, and which allows quick gear change. This apparatus includes an electric motor ( 10 ), a first shaft ( 21 ) driven by the electric motor ( 10 ), a second shaft ( 22 ), first and second reduction gear trains ( 23 and 24 ) disposed between the first and second shafts ( 21 and 22 ). Two-way roller clutches ( 30 A and 30 B) are mounted between a first output gear ( 23 b ) of the first reduction gear train ( 23 ) and the second shaft ( 22 ) and between a second output gear ( 24 b ) of the second reduction gear train ( 24 ) and the second shaft ( 22 ), respectively. Gear changes are made by selectively engaging and disengaging the two-way roller clutches ( 30 A and 30 B) with a speed changing mechanism ( 50 ).

First claim

Opening claim text (preview).

The invention claimed is: 1. A motor drive apparatus for a vehicle comprising: an electric motor; a normally meshing type transmission comprising first and second shafts extending parallel to each other, the first shaft being connected to the electric motor, a plurality of gear trains each provided between the first and second shafts and having different gear ratios from each other, each of the gear trains comprising an input gear mounted on an outer periphery of the first s…

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What does patent US9102226B2 cover?
A motor drive apparatus for a vehicle is provided which can prevent its transmission and motor from being rotated by vehicle wheels, and which allows quick gear change. This apparatus includes an electric motor ( 10 ), a first shaft ( 21 ) driven by the electric motor ( 10 ), a second shaft ( 22 ), first and second reduction gear trains ( 23 and 24 ) disposed between the first and second shaf…
Who is the assignee on this patent?
Makino Tomoaki, Ntn Toyo Bearing Co Ltd
What technology area does this patent fall under?
Primary CPC classification B60K6/52. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Aug 11 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).