Vehicle Display Controller Synchronizing Lane and Course Images
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Solution Overview
Problem
Conventional display systems for route guidance in navigation systems fail to clearly indicate when a driver needs to change routes before reaching a branching point, especially when another branching point is nearby, making it difficult for drivers to understand the timing and location of necessary turns.
Innovation Solution
A display system that displays a recommended lane image and a guiding course image on a vehicle's display when it reaches a predetermined distance before a turn, with the recommended lane image being superimposed on the lane after the turn and synchronized with the start and end of displaying the guiding course image, allowing drivers to easily understand when and where to make a turn.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a turn-by-turn image is displayed on a navigation screen until the vehicle passes through a branching point, then the route guidance is provided continuously, but it becomes difficult for the driver to understand at which timing a route change is needed and at which branching point a turn should be made
Solution Approach 1:
The patent segments the route guidance information by dividing it into distinct components: a turn-by-turn image showing the current route segment, and a recommended lane image showing the future lane configuration at the upcoming branching point. This segmentation allows the driver to process information in manageable chunks rather than overwhelming continuous display, thereby improving both accuracy and understandability.
Solution Approach 2:
The patent displays the recommended lane image in advance before the vehicle reaches the branching point. By showing the lane configuration and recommended path ahead of time, the system allows the driver to mentally prepare and understand the upcoming maneuver requirements, improving comprehension without sacrificing guidance accuracy.
2Loss of information
If conventional turn-by-turn guidance is displayed, then continuous navigation information is provided, but the information becomes unclear when multiple branching points are nearby
Solution Approach 1:
The patent merges two types of images into a single display interface: the turn-by-turn image (showing current route) and the recommended lane image (showing future lanes at branching point). This combination preserves all necessary navigation information while presenting it in an integrated, clear format that doesn't increase system complexity.
Solution Approach 2:
The patent extracts and highlights the critical lane recommendation information from the overall route guidance data. By separating the recommended lane visualization from the general turn-by-turn display and presenting it in a dedicated recommended lane image, the system maintains information clarity even when multiple branching points exist nearby.
Data Source
AI summary
A display system includes: a display that displays an image; and a display controller that causes the display to display a first image resembling roads around a vehicle and a second image resembling a recommended lane determined on the basis of a route to a destination set by the vehicle among the roads around the vehicle. The display controller causes the display to display the second image and a third image guiding a course of the vehicle when the vehicle has reached a second position located a predetermined distance before a first position at which the vehicle has to make a turn in the route to the destination.