Vehicle having road-surface rendering function

Patent metadata

Field	Value
Publication number	US-12109935-B2
Application number	US-202418430487-A
Country	US
Kind code	B2
Filing date	Feb 1, 2024
Priority date	Feb 14, 2023
Publication date	Oct 8, 2024
Grant date	Oct 8, 2024

Abstract

A vehicle having a road-surface rendering function includes a light projection member, a detection device, and a control unit. The light projection member performs light projection for road-surface rendering in the traveling vehicle and renders a road-surface rendered image onto a road surface surrounding the traveling vehicle. The detection device performs detection of a detection range larger than a light projection range in which the road-surface rendered image is rendered by the light projection member. The control unit controls the light projection for the road-surface rendering by the light projection member in accordance with the detection. The control unit determines whether the road-surface rendering is adequate at least in an outer area of the road surface located outside the light projection range with respect the detection range, and suppresses the light projection when the road-surface rendered image passes a road-surface area determined as being inadequate for the road-surface rendering.

First claim

The invention claimed is:

1. A vehicle having a road-surface rendering function, the vehicle comprising:
a light projection member configured to perform light projection for road-surface rendering in the vehicle that is traveling, the light projection member being configured to render a road-surface rendered image onto a road surface surrounding the vehicle that is traveling;
a detection device configured to perform detection of a detection range larger than a light projection range in which the road-surface rendered image is rendered by the light projection member; and
a control unit configured to control the light projection for the road-surface rendering by the light projection member in accordance with the detection by the detection device,
wherein the control unit is configured to
determine whether the road-surface rendering is adequate at least in an outer area of the road surface located outside the light projection range with respect the detection range of the detection device, and
suppress the light projection for the road-surface rendered image from the light projection member when the road-surface rendered image passes a road-surface area determined as being inadequate for the road-surface rendering.

2. The vehicle having the road-surface rendering function according to claim 1 ,
wherein the detection range of the detection device is wide at least in a forward portion in a traveling direction of the vehicle, as compared with the light projection range of the light projection member.

3. The vehicle having the road-surface rendering function according to claim 2 ,
wherein the control unit is configured to
split the detection range of the detection device into segments,
at least determine whether reflection toward a driver who drives the vehicle is insufficient for each of the segments, and
suppress the light projection for the road-surface rendered image from the light projection member when the road-surface rendered image passes a road-surface area corresponding to, among the segments, a segment where the reflection is insufficient.

4. The vehicle having the road-surface rendering function according to claim 3 ,
wherein the control unit is configured to
stop the light projection for the road-surface rendered image from the light projection member before the road-surface rendered image passes the road-surface area corresponding to the segment where the reflection is insufficient, and
resume the light projection for the road-surface rendered image from the light projection member after the road-surface rendered image passes the road-surface area corresponding to the segment where the reflection is insufficient.

5. The vehicle having the road-surface rendering function according to claim 4 , further comprising:
a storage medium configured to store light projection patterns to be projected by the light projection member,
wherein the control unit is configured to
when the light projection patterns are to be output simultaneously from the detection device, control the light projection by determining whether the road-surface rendered image corresponding to each of the light projection patterns has passed the road-surface area determined as being inadequate for the road-surface rendering.

6. The vehicle having the road-surface rendering function according to claim 5 ,
wherein one or more of the light projection patterns are stored in the storage medium with being in association with each other, and
wherein the control unit is configured to
determine, when a light projection pattern selected from the multiple light projection patterns associated with each other is to be projected from the light projection member, whether all of road-surface rendered images respectively corresponding to the light projection patterns associated with each other have passed the road-surface area determined as being inadequate for the road-surface rendering,
and perform control so as not to perform the light projection.

7. The vehicle having the road-surface rendering function according to claim 3 , further comprising:
a storage medium configured to store light projection patterns to be projected by the light projection member,
wherein the control unit is configured to
when the light projection patterns are to be output simultaneously from the detection device, control the light projection by determining whether the road-surface rendered image corresponding to each of the light projection patterns has passed the road-surface area determined as being inadequate for the road-surface rendering.

8. The vehicle having the road-surface rendering function according to claim 7 ,
wherein one or more of the light projection patterns are stored in the storage medium with being in association with each other, and
wherein the control unit is configured to
determine, when a light projection pattern selected from the multiple light projection patterns associated with each other is to be projected from the light projection member, whether all of road-surface rendered images respectively corresponding to the light projection patterns associated with each other have passed the road-surface area determined as being inadequate for the road-surface rendering,
and perform control so as not to perform the light projection.

9. The vehicle having the road-surface rendering function according to claim 2 , further comprising:
a storage medium configured to store light projection patterns to be projected by the light projection member,
wherein the control unit is configured to
when the light projection patterns are to be output simultaneously from the detection device, control the light projection by determining whether the road-surface rendered image corresponding to each of the light projection patterns has passed the road-surface area determined as being inadequate for the road-surface rendering.

10. The vehicle having the road-surface rendering function according to claim 9 ,
wherein one or more of the light projection patterns are stored in the storage medium with being in association with each other, and
wherein the control unit is configured to
determine, when a light projection pattern selected from the multiple light projection patterns associated with each other is to be projected from the light projection member, whether all of road-surface rendered images respectively corresponding to the light projection patterns associated with each other have passed the road-surface area determined as being inadequate for the road-surface rendering,
and perform control so as not to perform the light projection.

11. The vehicle having the road-surface rendering function according to claim 1 , further comprising:
a storage medium configured to store light projection patterns to be projected by the light projection member,
wherein the control unit is configured to
when the light projection patterns are to be output simultaneously from the detection device, control the light projection by determining whether the road-surface rendered image corresponding to each of the light projection patterns has passed the road-surface area determined as being inadequate for the road-surface rendering.

12. The vehicle having the road-surface rendering function according to claim 11 ,
wherein one or more of the light projection patterns are stored in the storage medium with being in association with each other, and
wherein the control unit is configured to
determine, when a light projection pattern selected from the multiple light projection patterns associated with each other is to be projected from the light projection member, whether all of road-surface rendered images respec

Assignees

• Subaru Corp

Inventors

• Yamasaki Kentarou
• Kinoshita Makoto

Classifications

• B60Q2400/50

  Projected symbol or information, e.g. onto the road or car body · CPC title

• E01F9/615

  illuminated · CPC title

• E01F9/608

  for guiding, warning or controlling traffic, e.g. delineator posts or milestones · CPC title

• B60Q1/50 Primary

  for indicating other intentions or conditions, e.g. request for waiting or overtaking · CPC title

• G06V20/588

  Recognition of the road, e.g. of lane markings; Recognition of the vehicle driving pattern in relation to the road · CPC title