Cam phasing assemblies with electromechanical locking control and method thereof
US-2018371963-A1 · Dec 27, 2018 · US
Electrically-actuated VCT lock
US10808580B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10808580-B2 |
| Application number | US-201916567606-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 11, 2019 |
| Priority date | Sep 12, 2018 |
| Publication date | Oct 20, 2020 |
| Grant date | Oct 20, 2020 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An electrically-actuated camshaft phaser including an electrically-actuated lock that includes a planetary gear assembly having a camshaft ring gear configured to be connected to a camshaft, a sprocket ring gear configured to receive rotational input from a crankshaft, and one or more planet gears engaging the camshaft ring gear and the sprocket ring gear, wherein the planetary gear assembly changes the angular position of the camshaft relative to the crankshaft; an electric motor, coupled to the planetary gear assembly, and a solenoid, wherein the electric motor controls the relative angular position of the crankshaft relative to the camshaft and the solenoid selectively moves a mechanical connection into locking engagement thereby preventing relative movement between the camshaft relative to the crankshaft.
First claim
Opening claim text (preview).
What is claimed is: 1. An electrically-actuated camshaft phaser, comprising: a planetary gear assembly including a camshaft ring gear configured to be connected to a camshaft, a sprocket ring gear configured to receive rotational input from a crankshaft, and one or more planet gears engaging the camshaft ring gear and the sprocket ring gear, wherein the planetary gear assembly changes an angular position of the camshaft relative to the crankshaft; and an electric motor, coupled to the planetary gear assembly, and a solenoid, wherein the electric motor controls the angular position of the camshaft relative to the crankshaft, and the solenoid selectively moves an electrically-actuated lock into locking engagement thereby preventing movement of the camshaft relative to the crankshaft. 2. The electrically-actuated camshaft phaser recited in claim 1 , wherein the electrically-actuated lock comprises a solenoid gear and a locking ring gear. 3. The electrically-actuated camshaft phaser recited in claim 1 , wherein the solenoid and the electric motor are arranged within an enclosure. 4. The electrically-actuated camshaft phaser recited in claim 1 , wherein the solenoid comprises an armature connected to an output shaft of the electric motor. 5. The electrically-actuated camshaft phaser recited in claim 1 , wherein the electrically-actuated lock comprises a dog clutch, a tapered tooth face clutch, a friction clutch, or a lock pin. 6. The electrically-actuated camshaft phaser recited in claim 1 , further comprising a linkage between the solenoid and the electrically-actuated lock. 7. The electrically-actuated camshaft phaser recited in claim 6 , wherein the linkage comprises a hydraulic pathway. 8. The electrically-actuated camshaft phaser recited in claim 1 , further comprising a valve, controlled by an armature of the solenoid, that flows lubricating fluid to the electrically-actuated camshaft phaser in a first position of the armature. 9. The electrically-actuated camshaft phaser recited in claim 8 , wherein the solenoid selectively moves the armature to a second position that stops the flow of lubricating fluid and a third position that both stops the flow of lubricating fluid and places the electrically-actuated lock in a locked position. 10. The electrically-actuated camshaft phaser recited in claim 1 , wherein the solenoid is located apart from the electric motor. 11. The electrically-actuated camshaft phaser recited in claim 1 , wherein the solenoid includes an armature configured to rotate.
Assignees
Inventors
Classifications
- F01L1/352Primary
using bevel or epicyclic gear · CPC title
Locking means between driving and driven members · CPC title
Electromagnets · CPC title
- F01L1/344Primary
changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear · CPC title
with electromagnetic brake · CPC title
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- What does patent US10808580B2 cover?
- An electrically-actuated camshaft phaser including an electrically-actuated lock that includes a planetary gear assembly having a camshaft ring gear configured to be connected to a camshaft, a sprocket ring gear configured to receive rotational input from a crankshaft, and one or more planet gears engaging the camshaft ring gear and the sprocket ring gear, wherein the planetary gear assembly ch…
- Who is the assignee on this patent?
- Borgwarner Inc
- What technology area does this patent fall under?
- Primary CPC classification F01L1/352. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 20 2020 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).