Adaptive Driving Assistance Display for Lane Change Visibility
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Solution Overview
Problem
Existing driving assistance systems fail to provide optimal image display during lane changes or turns, leading to obscured views of navigation maps and obstacles due to overlapping video images, and they do not allow timely confirmation of navigation images after a blinker switch is turned off.
Innovation Solution
A driving assistance device that captures rear lateral vehicle areas and dead angles using side mirrors, displaying video images only when necessary and switching to navigation images based on blinker switch states and path guide information, while displaying warning images in an overlapping manner that does not obscure the video image, ensuring obstacle visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the external video image is continuously displayed for a predetermined amount of time after the blinker switch is turned off, then the driver can confirm the video image until the lane change or turn is completed, but the navigation map image cannot be confirmed immediately after the vehicle moves to the other side
Solution Approach 1:
The patent applies dynamics by making the video image display duration adaptive rather than fixed. The display control device dynamically adjusts the continuous display time based on whether another lane change or turn is detected during the initial predetermined period. If a subsequent blinker operation is detected, the system shortens the display time to allow navigation image confirmation, thereby resolving the contradiction between safety assistance and navigation visibility.
Solution Approach 2:
The system uses feedback from the blinker switch operations to control video image display timing. By detecting whether another lane change or turn signal is activated during the predetermined time period, the system adjusts the display duration accordingly. This feedback mechanism allows the navigation map to be displayed sooner when additional maneuvers are detected, balancing safety monitoring with navigation visibility.
2Reliability
If the warning image is overlapped with the external video image on the monitor, then the warning can be displayed, but the obstacle captured on the video image becomes difficult to confirm
Solution Approach 1:
The patent applies local quality by differentiating the display characteristics based on the type of image being shown. When a video image is displayed, the warning image is positioned at a specific location (such as the corner or edge of the screen) rather than overlapped centrally. This local placement ensures the warning is visible while preserving the obstacle information in the video image, resolving the contradiction between warning notification and obstacle visibility.
3Reliability
If the external video image is displayed on the monitor during lane change, then the driver can monitor the rear lateral area, but the navigation map image cannot be displayed simultaneously
Solution Approach 1:
The system uses periodic action by switching between video image display and navigation map display based on the lane change status. During active lane change (when blinker is on), the video image is displayed periodically. After the lane change completes and a predetermined time elapses, the system periodically switches to display the navigation map. This periodic switching resolves the contradiction by providing both video monitoring during maneuvers and navigation information afterward.
Data Source
AI summary
A driving assistance device includes: an image capturing part configured to image-capture a rear lateral area of a host vehicle and a dead angle area; a display part configured to display a video image captured by the image capturing part; and a blinker switch configured to make a signal of a movement of the host vehicle to a first side or a second side. The display part displays the video image according to a turn on of the blinker switch indicating a movement of the vehicle to the second side, turns off the display of the video image when a predetermined amount of time elapses after the blinker switch is turned off, and turns off the display of the video image before the predetermined amount of time elapses when it is predicted that the host vehicle moves to the first side within the predetermined amount of time.