Transmission
US-9765826-B2 · Sep 19, 2017 · US
Power system
US2018180150A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018180150-A1 |
| Application number | US-201715824220-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 28, 2017 |
| Priority date | Dec 22, 2016 |
| Publication date | Jun 28, 2018 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A power system includes an electric motor, a transmission, and a differential gear system. The transmission includes a first gear that is mechanically connected to the electric motor, a second gear that has a rotation axis in common with the first gear and is mechanically connected to a differential gear casing of the differential gear system, and a plurality of pinion gears that mesh with the first gear and the second gear. The plurality of pinion gears are supported to be capable of rotating and not to be capable of revolving. One pinion gear out of the plurality of pinion gears is only mechanically connected to a rotation restricting mechanism that is switchable between an operating state and a non-operating state. The rotation restricting mechanism restricts rotation of the pinion gear in the operating state, and permits the rotation of the pinion gear in the non-operating state.
First claim
Opening claim text (preview).
1 . A power system comprising: an electric motor that drives a left wheel and a right wheel of a vehicle; a transmission that is disposed on power transmission paths between the electric motor and the left wheel and between the electric motor and the right wheel; and a differential gear system that distributes output power shifted by the transmission to the left wheel and the right wheel, wherein: the transmission comprises a first gear that is mechanically connected to the electric motor, a second gear that has a rotation axis in common with the first gear and is mechanically connected to a differential gear casing of the differential gear system, and a plurality of pinion gears that mesh with the first gear and the second gear; the plurality of pinion gears are supported to be capable of rotating and not to be capable of revolving; one pinion gear out of the plurality of pinion gears is only mechanically connected to a rotation restricting mechanism that is switchable between an operating state and a non-operating state; and the rotation restricting mechanism restricts rotation of the pinion gear in the operating state, and permits the rotation of the pinion gear in the non-operating state. 2 . The power system according to claim 1 , wherein the one pinion gear is located at an uppermost position out of the plurality of pinion gears. 3 . The power system according to claim 1 , wherein the pinion gear comprises a large diameter gear and a small diameter gear, and the small diameter gear meshes with the second gear. 4 . The power system according to claim 3 , wherein the large diameter gear of the one pinion gear has a parking gear engaged with the rotation restricting mechanism. 5 . The power system according to claim 1 , wherein an actuator for driving the rotation restricting mechanism is provided on an outer periphery of the differential gear casing of the differential gear system.
Assignees
Inventors
Classifications
involving more than two intermeshing members · CPC title
- F16H37/0813Primary
with only one input shaft · CPC title
one motor mounted on a propulsion axle for rotating right and left wheels of this axle · CPC title
- B60K17/16Primary
of differential gearing · CPC title
Positive locking brakes · CPC title
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Frequently asked questions
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- What does patent US2018180150A1 cover?
- A power system includes an electric motor, a transmission, and a differential gear system. The transmission includes a first gear that is mechanically connected to the electric motor, a second gear that has a rotation axis in common with the first gear and is mechanically connected to a differential gear casing of the differential gear system, and a plurality of pinion gears that mesh with the …
- Who is the assignee on this patent?
- Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16H37/0813. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Jun 28 2018 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).