Deceleration Target Display Layout for Driver Assistance

Solution Overview

Problem

Existing driving assistance systems fail to accurately notify occupants of changes in deceleration targets, leading to potential misrecognition of the current target for deceleration assistance, as the display of the first deceleration object is not effectively distinguished from the second when the target changes.

Innovation Solution

A driving assistance apparatus with a controller that manages a display system to differentiate between first and second deceleration objects by displaying the second object as the target in a primary area and the first object, no longer a target, in a secondary area with reduced visibility, ensuring clear distinction and preventing misrecognition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the display continues to show the first deceleration object that is no longer the target, then the occupant can maintain awareness of all detected objects, but the occupant may erroneously recognize the non-target object as the current deceleration target

Engineering Contradiction:

Improveawareness of detected objectsVSAvoidaccurate recognition of deceleration target

Core Design Contradiction:

Loss of informationVSReliability

Solution Approach 1:

The display apparatus applies different visual characteristics to different display areas. The first display area showing the current deceleration target uses prominent visual characteristics, while the second display area showing non-target objects uses subdued visual characteristics. This local differentiation allows the occupant to distinguish between target and non-target objects while maintaining awareness of all detected objects.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The display screen is divided into multiple distinct display areas: a first display area for the current deceleration target and a second display area for non-target objects. This segmentation separates information about target objects from information about non-target objects, preventing misrecognition while preserving comprehensive awareness.

Inventive Principle:

Principle #1Segmentation

2Reliability

If the display switches to show only the second deceleration object when it becomes the new target, then the current target is clearly indicated, but the occupant loses awareness of the previously detected first object

Engineering Contradiction:

Improveclear indication of current targetVSAvoidawareness of previously detected objects

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The display screen is divided into multiple distinct display areas: a first display area for the current deceleration target and a second display area for non-target objects. This segmentation separates information about target objects from information about non-target objects, preventing misrecognition while preserving comprehensive awareness.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The display apparatus prepares the second display area to show non-target objects in advance, so when the deceleration target changes, the occupant can immediately see both the new target in the first display area and the previously detected object in the second display area, maintaining continuous awareness without information loss.

Inventive Principle:

Principle #10Preliminary action

3Area of stationary object

If both first and second deceleration objects are displayed in the same display area, then the display space is efficiently utilized, but the occupant cannot easily distinguish which object is the current deceleration target

Engineering Contradiction:

Improvedisplay space utilizationVSAvoidease of identifying current target

Core Design Contradiction:

Area of stationary objectVSEase of operation

Solution Approach 1:

The display screen is divided into multiple distinct display areas: a first display area for the current deceleration target and a second display area for non-target objects. This segmentation separates information about target objects from information about non-target objects, preventing misrecognition while preserving comprehensive awareness.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The display apparatus applies different visual characteristics to different display areas. The first display area showing the current deceleration target uses prominent visual characteristics, while the second display area showing non-target objects uses subdued visual characteristics. This local differentiation allows the occupant to distinguish between target and non-target objects while maintaining awareness of all detected objects.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12071154B2Driving assistance apparatus

Publication Date: 2024.08.27 TOYOTA JIDOSHA KK

AI summary

A driving assistance apparatus includes a controller programmed to perform a deceleration assistance process of assisting in decelerating a vehicle before the vehicle arrives at a deceleration object, and to control a display apparatus to display, in a first display area, first notification information for notifying an occupant of the vehicle of the deceleration object that is a target for the deceleration assistance process. When a first object and a second object that is different from the first object are both detected as the deceleration object and the second object is the target for the deceleration assistance process but the first object is not the target for the deceleration assistance process, the controller is programmed to control the display apparatus to display, in a second display area, second notification information for notifying the occupant of the first object, the second display area is different from the first display area.