Dynamic Surrounding Vehicle Display Region for Auto Lane Change

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Solution Overview

Problem

Existing methods for displaying surroundings in vehicles do not effectively consider auto lane changes, making it difficult for occupants to grasp the presence of other vehicles and objects around the host vehicle, which can impact safety during automated driving.

Innovation Solution

A surrounding vehicle display method that generates a virtual image of the surroundings from a viewpoint above the host vehicle, widening the display region when an auto lane change is being examined, allowing occupants to visualize a wider area around the vehicle, including other vehicles, bikes, and pedestrians.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the display region is widened to show more surrounding vehicles during auto lane change examination, then occupant awareness and safety are improved, but the display complexity and information processing requirements increase

Engineering Contradiction:
Improveoccupant safetyVSAvoiddisplay system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The display region dynamically adjusts its width based on the autonomous lane change examination state. When the examination is performed, the display region is widened to show more surrounding vehicles; when not examining, the display region returns to its normal width. This dynamic adjustment resolves the contradiction by providing enhanced safety information only when needed, rather than permanently increasing display complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system performs preliminary examination of whether to execute an autonomous lane change before actually executing it. During this examination phase, the display region is proactively widened to show surrounding vehicles, allowing occupants to assess the safety of the planned maneuver before it occurs. This preliminary action enables safety verification in advance.

Inventive Principle:
Principle #10Preliminary action

2Area of stationary object

If the display region is widened to show more surrounding area, then the field of view is improved, but the resolution and detail of individual vehicles may be reduced

Engineering Contradiction:
Improvedisplay region areaVSAvoidvehicle detection precision
Core Design Contradiction:
Area of stationary objectVSMeasurement precision

Solution Approach 1:

The display system segments the surrounding area into multiple zones with different levels of detail. When the display region is widened during auto lane change examination, the system prioritizes showing surrounding vehicles in the lane change target area with higher detail, while other areas may be shown with reduced detail. This segmentation allows the system to maintain vehicle detection precision in critical areas while still widening the overall display region.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11270589B2Surrounding vehicle display method and surrounding vehicle display device
Publication Date: 2022.03.08 NISSAN MOTOR CO LTD
  • US11270589B2 patent drawing
  • US11270589B2 patent drawing
  • US11270589B2 patent drawing

AI summary

A surrounding vehicle display device includes: a surrounding information detection device that obtains information on surroundings of a host vehicle; a virtual image generation unit that uses the information obtained by the surrounding information detection device to generate a virtual image that indicates the surroundings of the host vehicle as being viewed from above the host vehicle; and a controller that starts examination of whether to perform the auto lane change before performing the auto lane change. The controller starts the examination of whether to perform the auto lane change before performing the auto lane change and then makes a display region of the surroundings of the host vehicle on the virtual image wider than a display region before the examination is started.