Lane Change Display Mark for Driver-Aware Automated Merging

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Solution Overview

Problem

Drivers of vehicles capable of automatic lane changes often feel uneasy due to uncertainty about when and where the lane change will occur, especially when surrounding vehicles are involved.

Innovation Solution

A vehicle system comprising an object recognition device to calculate the relative position of surrounding vehicles and a display device that shows a lane change mark on an information display screen, updating its position based on the relative position of surrounding vehicles, allowing drivers to easily understand when and where the lane change will take place.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If automatic lane change function is implemented, then driving automation is improved, but driver anxiety increases due to uncertainty about lane change timing and position

Engineering Contradiction:
Improveautomatic lane change capabilityVSAvoiddriver anxiety
Core Design Contradiction:
Extent of automationVSObject-affected harmful factors

Solution Approach 1:

The display device provides continuous visual feedback to the driver by showing the lane change mark that moves in real-time according to the calculated lane change position. This feedback loop eliminates uncertainty by constantly updating the driver with accurate information about when and where the lane change will occur, thereby reducing driver anxiety while maintaining automation.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The lane change mark serves as an intermediary visual element between the automated lane change system and the driver. Instead of directly executing the lane change without notification, the system uses this visual marker to communicate the planned action to the driver, bridging the information gap and reducing anxiety about the automated operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If lane change information is displayed to driver, then driver understanding is improved, but device complexity increases

Engineering Contradiction:
Improvedriver understanding of lane changeVSAvoiddisplay system complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The information display is segmented into essential elements only: the lane change mark positioned on the destination lane representation. Rather than displaying comprehensive data about surrounding vehicles, road conditions, and system status, the solution focuses on the single most important piece of information—the where and when of the lane change—thereby improving driver understanding without significantly increasing device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The display system applies local quality by placing the lane change mark specifically at the position representing the destination lane on the display screen. This localized visual cue provides precise information about the lane change target without requiring complex global display arrangements, maintaining simplicity while effectively communicating the essential information to the driver.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12084078B2Vehicle, display method, and non-transitory computer storage medium
Publication Date: 2024.09.10 TOYOTA JIDOSHA KK
  • US12084078B2 patent drawing
  • US12084078B2 patent drawing
  • US12084078B2 patent drawing

AI summary

A vehicle reducing unease of a driver during driver assistance, provided with a display device configured to display a surrounding vehicle together with a host vehicle at a relative position calculated by an object recognition device, display a mark showing that a lane change is planned to be performed at a predetermined space for performing a lane change in a destination driving lane which is a destination for a lane change when an automatic lane change is planned to be performed, and make a position of the mark change in accordance with the relative position of the surrounding vehicle when there is a surrounding vehicle present having an effect on a lane change in the destination driving lane.