Road surface detection apparatus, road surface detection method, and recording medium including road surface detection program recorded therein
US-2019118823-A1 · Apr 25, 2019 · US
Preview road surface detection device
US12092449B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12092449-B2 |
| Application number | US-202217682263-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 28, 2022 |
| Priority date | Mar 15, 2021 |
| Publication date | Sep 17, 2024 |
| Grant date | Sep 17, 2024 |
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 preview road surface detection device of a vehicle of the present invention includes: a distance sensor that is disposed in a vehicle member and detects a distance to a measurement point on a road surface nearer to a front part of the vehicle, corresponding to at least a central portion of a contact patch to the road surface of a wheel of the vehicle; and a distance calculator that calculates a road surface distance from the vehicle member to the measurement point, based on a value detected by the distance sensor. A displacement of the road surface nearer to the front part of the vehicle is detected as a road surface condition. The displacement of the road surface is calculated from the road surface distance and a vehicle height of the vehicle member when the distance sensor detects the distance.
First claim
Opening claim text (preview).
The invention claimed is: 1. A preview road surface detection device of a vehicle, comprising: a distance sensor that is disposed in a vehicle member and detects a distance to a measurement point on a road surface in a frontward direction of the vehicle, the measurement point corresponding to at least a central portion of a contact patch to the road surface of a wheel of the vehicle; and a distance calculator that calculates a road surface distance from the vehicle member to the measurement point, based on a value detected by the distance sensor, wherein a displacement of the road surface nearer to the front part of the vehicle is detected as a road surface condition, the displacement of the road surface being calculated from the road surface distance and a vehicle height of the vehicle member when the distance sensor detects the distance, wherein the distance sensor detects respective distances to at least two measurement points, and wherein the distance calculator: adds respective weights to a plurality of the distances ahead of the wheel detected by the distance sensor and calculates a weighted average value as a road surface distance; when the vehicle is traveling straight ahead, increases a weight to the distance corresponding to a central portion of the road surface contact patch; when the vehicle is making a right turn, increases a weight to the distance corresponding to a left side of the road surface contact patch; and when the vehicle is making a left turn, increases a weight to the distance corresponding to a right side of the road surface contact patch.
Assignees
Inventors
Classifications
Laser · CPC title
mainly during straight-line motion (B60G17/0164 takes precedence) · CPC title
- B60G17/0165Primary
to an external condition, e.g. rough road surface, side wind · CPC title
Weighting coefficients or factors · CPC title
mainly during a motion involving steering operation, e.g. cornering, overtaking (B60G17/0164 takes precedence) · 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 US12092449B2 cover?
- A preview road surface detection device of a vehicle of the present invention includes: a distance sensor that is disposed in a vehicle member and detects a distance to a measurement point on a road surface nearer to a front part of the vehicle, corresponding to at least a central portion of a contact patch to the road surface of a wheel of the vehicle; and a distance calculator that calculates…
- Who is the assignee on this patent?
- Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60G17/0165. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 17 2024 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).