Engine access panels for off-highway vehicle
US-2024351650-A1 · Oct 24, 2024 · US
Vehicle drive device
US9233606B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9233606-B2 |
| Application number | US-201214382031-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 2, 2012 |
| Priority date | Mar 2, 2012 |
| Publication date | Jan 12, 2016 |
| Grant date | Jan 12, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A vehicle drive device has an outer rotor type electric motor with a rotor disposed on an outer circumferential side of a stator including a first power transmission path coupling an inside of the rotor and drive wheels; and a second power transmission path coupling an outside of the rotor and the drive wheels, the first power transmission path and the second power transmission path having different gear ratios, one power transmission path of the first power transmission path and the second power transmission path being coupled to the drive wheels to make a gear change.
First claim
Opening claim text (preview).
The invention claimed is: 1. A vehicle drive device having an electric motor with a rotor disposed on an outer circumferential side of a stator, comprising: a first power transmission path coupling an inside of the rotor and drive wheels; a second power transmission path coupling an outside of the rotor and the drive wheels; an inner planetary gear device being disposed on the first power transmission path; and an outer planetary gear device being disposed on the second power transmission path, the first power transmission path and the second power transmission path having different gear ratios, one power transmission path of the first power transmission path and the second power transmission path being coupled to the drive wheels to make a gear change, and the inner planetary gear device and the outer planetary gear device being arranged to overlap with the rotor in a radial direction. 2. The vehicle drive device of claim 1 , wherein the rotor of the electric motor is formed axially longer than the stator to dispose the inner planetary gear device on an inner circumferential side of the rotor, wherein the outer planetary gear device is disposed on an outer circumferential side of the rotor, wherein a ring gear of the inner planetary gear device is integrally formed on the inner circumferential side of the rotor, and wherein a sun gear of the outer planetary gear device is integrally formed on the outer circumferential side of the rotor. 3. The vehicle drive device of claim 2 , wherein the inner planetary gear device is made up of a single pinion planetary gear device with a sun gear of the inner planetary gear device coupled to the stator, the ring gear of the inner planetary gear device coupled to the rotor, and a carrier of the inner planetary gear device coupled via a first clutch to the drive wheels, and wherein the outer planetary gear device is made up of a single pinion planetary gear device with the sun gear of the outer planetary gear device coupled to the rotor, a ring gear of the outer planetary gear device coupled to a non-rotating member, and a carrier of the outer planetary gear device coupled via a second clutch to the drive wheels. 4. The vehicle drive device of claim 2 , wherein the inner planetary gear device is made up of a double pinion planetary gear device with a carrier of the inner planetary gear device coupled to the stator, the ring gear of the inner planetary gear device coupled to the rotor, and a sun gear of the inner planetary gear device coupled via a first clutch to the drive wheels, and wherein the outer planetary gear device is made up of a single pinion planetary gear device with the sun gear of the outer planetary gear device coupled to the rotor, a ring gear of the outer planetary gear device coupled to a non-rotating member, and a carrier of the outer planetary gear device coupled via a second clutch to the drive wheels. 5. The vehicle drive device of claim 3 , wherein one of the first clutch and the second clutch is made up of a one-way clutch.
Assignees
Inventors
Classifications
with one sets of orbital gears · CPC title
Differential gearing distribution type · CPC title
- B60K17/08Primary
of mechanical type · CPC title
with the gears having orbital motion · CPC title
with one engaging means · CPC title
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- What does patent US9233606B2 cover?
- A vehicle drive device has an outer rotor type electric motor with a rotor disposed on an outer circumferential side of a stator including a first power transmission path coupling an inside of the rotor and drive wheels; and a second power transmission path coupling an outside of the rotor and the drive wheels, the first power transmission path and the second power transmission path having diff…
- Who is the assignee on this patent?
- Takahashi Satoru, Kobiki Yasushi, Sato Isao, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification B60K17/08. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 12 2016 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).