Steering apparatus
US-2022001916-A1 · Jan 6, 2022 · US
Steer-by-wire steering system of a road vehicle with external steering wheel angle sensor
US12473012B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12473012-B2 |
| Application number | US-202418612508-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 21, 2024 |
| Priority date | Sep 22, 2021 |
| Publication date | Nov 18, 2025 |
| Grant date | Nov 18, 2025 |
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.
A steer-by-wire steering system for a road vehicle includes a road wheel actuator to act on steerable wheels and electronically controlled as a function of a driver's steering request, a feedback actuator to transmit reactions of a road to a steering wheel, and a single steering wheel angle sensor to measure a steering wheel angle. The steering wheel angle sensor is an external sensor able to communicate on a second vehicle communication channel or via a private communication with the road wheel actuator. The steer-by-wire steering system also includes an external road wheel actuator position sensor to measure a position of the road wheel actuator and to communicate on the second vehicle communication channel or via the private communication with the road wheel actuator.
First claim
Opening claim text (preview).
What is claimed is: 1 . A steer-by-wire steering system for a road vehicle, the steer-by-wire steering system comprising: a road wheel actuator to act on steerable wheels and electronically controlled as a function of a driver's steering request; a feedback actuator to transmit reactions of a road to a steering wheel; and a steering wheel angle sensor to measure a steering wheel angle; wherein the steering wheel angle sensor is an external sensor capable of communicating on a second vehicle communication channel or via a private communication with the road wheel actuator; the external steering wheel angle sensor is the only steering wheel angle sensor; the steer-by-wire steering system further comprises an external road wheel actuator position sensor to measure a position of the road wheel actuator and is capable of communicating on the second vehicle communication channel or via the private communication with the road wheel actuator. 2 . The steer-by-wire steering system according to claim 1 , wherein the road wheel actuator includes a redundant power supply and is connected to a first power supply and a second power supply, the feedback actuator is connected to the first power supply, and the external steering angle sensor and the external road wheel actuator position sensor are connected to the second power supply. 3 . The steer-by-wire steering system according to claim 2 , wherein the feedback actuator is additionally connected to the second power supply. 4 . The steer-by-wire steering system according to claim 1 , wherein the feedback actuator and the road wheel actuator are capable of communicating with each other on at least one private communication channel and on a first vehicle communication channel. 5 . The steer-by-wire steering system according to claim 3 , wherein the feedback actuator and the road wheel actuator are capable of communicating with each other additionally on the second vehicle communication channel. 6 . The steer-by-wire steering system according to claim 1 , wherein the external steering wheel angle sensor is operable to measure an absolute steering wheel angle.
Assignees
Inventors
Classifications
on or near the connection between the steering wheel and steering column · CPC title
by measuring on a steering gear element, e.g. on a rack bar · CPC title
by measuring on the steering column · CPC title
- B62D5/006Primary
power actuated · CPC title
- B62D5/001Primary
Mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup · 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 US12473012B2 cover?
- A steer-by-wire steering system for a road vehicle includes a road wheel actuator to act on steerable wheels and electronically controlled as a function of a driver's steering request, a feedback actuator to transmit reactions of a road to a steering wheel, and a single steering wheel angle sensor to measure a steering wheel angle. The steering wheel angle sensor is an external sensor able to c…
- Who is the assignee on this patent?
- Thyssenkrupp Presta Ag, Honda Motor Co Ltd, Thyssenkrupp Presta Ah
- What technology area does this patent fall under?
- Primary CPC classification B62D5/006. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 18 2025 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).