Vehicle Display Cues for Distinguishing Lane Change Intent

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Solution Overview

Problem

Existing vehicle display systems fail to clearly distinguish the object of a lane change, making it difficult for occupants to quickly grasp the lane change situation during driver assistance functions.

Innovation Solution

A vehicle display control device that determines the necessity of a lane change based on planned travel routes and area conditions, displaying information in a display area near the driver's seat, varying the display between lane changes for passing a vehicle in front and those for other objects, and using visual cues like fading route ends and icons to indicate the change's purpose.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If lane change information is displayed uniformly without distinction, then the display system is simple, but the occupant cannot quickly grasp whether the lane change is for passing

Engineering Contradiction:
Improveinformation clarityVSAvoiddisplay complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent applies local quality by varying specific display elements (leading end appearance, icon placement, route line style) only in the portions of the display relevant to indicating the lane change object, while keeping the rest of the display system simple and uniform. This allows differentiated information presentation without overall system complexity

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent uses visual appearance changes (described as color/style variations in the display) of the leading end and route lines to distinguish between passing and non-passing lane changes. The leading end appears differently based on the lane change object type, enabling quick visual differentiation without adding complex hardware

Inventive Principle:
Principle #32Color changes

2Loss of information

If detailed lane change information is displayed, then the occupant can understand the lane change object, but the display area becomes cluttered and harder to read at a glance

Engineering Contradiction:
Improveinformation completenessVSAvoidease of reading
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent extracts only the essential information needed to identify the lane change object (leading end appearance, minimal icons, route line style) and displays it prominently, while omitting unnecessary details. This extraction approach provides complete essential information without cluttering the display area

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the lane change information into distinct visual components: the leading end indicator, the route line, and optional icons. Each segment conveys specific information about the lane change object, allowing the occupant to quickly parse the information without being overwhelmed by a unified complex display

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20240175699A1Vehicle display control device, vehicle display control system, vehicle, vehicle display control method, and non-transitory storage medium storing program
Publication Date: 2024.05.30 TOYOTA JIDOSHA KK
  • US20240175699A1 patent drawing
  • US20240175699A1 patent drawing
  • US20240175699A1 patent drawing

AI summary

A vehicle display control device that determines whether or not a lane change is necessary based on at least one of a planned travel route or area conditions and, in a case in which a lane change is necessary, displays information relating to the lane change in a display area in a vicinity of a driver's seat, wherein the vehicle display control device varies the information displayed in the display area between a lane change with an object of passing a vehicle in front and lane changes with objects other than passing