Vehicle power device and wheel bearing with generator
US-2023094579-A1 · Mar 30, 2023 · US
Apparatus for measuring speed of vehicle having in-wheel motor
US11835542B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11835542-B2 |
| Application number | US-201916542357-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 16, 2019 |
| Priority date | Aug 16, 2018 |
| Publication date | Dec 5, 2023 |
| Grant date | Dec 5, 2023 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An apparatus for measuring a speed of a vehicle having an in-wheel motor includes a lock nut part fixed to an outer portion of a rotation shaft rotated by receiving power of the in-wheel motor, and restricting movement of a bearing part positioned outside the rotation shaft; a connection part coupled to the lock nut part; a magnet part having a magnetic force, and fixed to the connection part; and a speed sensor part installed to be separated from the magnet part, and measuring rotations of the magnet part.
First claim
Opening claim text (preview).
What is claimed is: 1. An apparatus for measuring a speed of a vehicle having an in-wheel motor, comprising: a lock nut part fixed to an outer portion of a rotation shaft configured to be rotated by receiving power of the in-wheel motor, and restricting movement of a bearing part positioned outside the rotation shaft; a connection part coupled to the lock nut part; a magnet part having a magnetic force, and fixed to the connection part; and a speed sensor part installed to be separated from the magnet part, and configured for measuring rotations of the magnet part. 2. The apparatus according to claim 1 , wherein the connection part has a ring shape which surrounds an outside of the lock nut part, and is configured to be coupled to the lock nut part by press fitting. 3. The apparatus according to claim 2 , wherein the connection part is configured to be coupled to the lock nut part after the connection part and the magnet part are coupled first. 4. The apparatus according to claim 3 , wherein the magnet part is formed by sintering powder having a magnetic force, and is bonded to the connection part. 5. An apparatus for measuring a speed of a vehicle having an in-wheel motor, comprising: a lock nut part fixed to an outer portion of a rotation shaft configured to be rotated by receiving power of the in-wheel motor, and restricting movement of a bearing part positioned outside the rotation shaft; a magnet part having a magnetic force, and fixed to the lock nut part; and a speed sensor part installed to be separated from the magnet part, and configured for measuring rotations of the magnet part. 6. The apparatus according to claim 5 , wherein the magnet part is formed by sintering powder having a magnetic force, and is bonded to an outside of the lock nut part. 7. The apparatus according to claim 6 , wherein the magnet part comprises: a magnet body facing an upper surface of the lock nut part, and extending in a ring shape; and engagement projections extending from the magnet body, and inserted into engagement grooves which are defined in the lock nut part. 8. An apparatus for measuring a speed of a vehicle having an in-wheel motor, comprising: a lock nut part fixed to an outer portion of a rotation shaft configured to be rotated by receiving power of the in-wheel motor, and restricting movement of a bearing part positioned outside the rotation shaft; and a speed sensor part installed to be separated from the lock nut part, and configured for measuring rotations of the lock nut part. 9. The apparatus according to claim 8 , wherein the lock nut part comprises: a lock nut body locked to the outer portion of the rotation shaft, and having a ring shape; and outer projections projecting on a circumferential outer surface of the lock nut body in shapes of prominences and depressions, and configured to be measured by the speed sensor part. 10. The apparatus according to claim 9 , wherein the lock nut part further comprises: engagement grooves which form groove portions between the outer projections.
Assignees
Inventors
Classifications
- G01P3/443Primary
mounted in bearings (bearings F16C) · CPC title
by screws, bolts, pins, or clips · CPC title
the element being a sensor · CPC title
characterised by the fixation of the hub to the axle · CPC title
the motor being electric · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11835542B2 cover?
- An apparatus for measuring a speed of a vehicle having an in-wheel motor includes a lock nut part fixed to an outer portion of a rotation shaft rotated by receiving power of the in-wheel motor, and restricting movement of a bearing part positioned outside the rotation shaft; a connection part coupled to the lock nut part; a magnet part having a magnetic force, and fixed to the connection part; …
- Who is the assignee on this patent?
- Hyundai Mobis Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G01P3/443. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 05 2023 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).