Driving Assistance Junction Destination Presentation
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Solution Overview
Problem
Conventional driving assistance systems struggle to provide accurate speed control when multiple junctions occur closely together, making it difficult for drivers to select destinations smoothly.
Innovation Solution
A driving assistance apparatus that determines whether multiple junctions satisfy a concurrent destination presentation condition based on distance, vehicle speed, lane change possibility, and curve presence, presenting destination information accordingly to allow drivers to select destinations efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the conventional apparatus estimates vehicle destination based on gaze detection at each junction separately, then the speed control can be provided for single junctions, but the destination estimation becomes inaccurate when multiple junctions occur consecutively within a short distance
Solution Approach 1:
The patent merges the destination estimation process for multiple consecutive junctions into a single unified estimation. When multiple junctions are detected within a predetermined distance, the system combines destination information from all these junctions and performs one integrated destination estimation, rather than treating each junction separately. This resolves the contradiction by improving measurement precision for multi-junction scenarios while maintaining adaptability through the merging mechanism.
Solution Approach 2:
The patent applies preliminary action by performing destination estimation for multiple junctions simultaneously before the vehicle reaches any of them. By detecting multiple junctions ahead and estimating the destination based on all of them in advance, the system prepares the appropriate speed control strategy beforehand, improving accuracy while adapting to complex road conditions.
2Ease of operation
If the apparatus provides separate destination selection for each junction, then precise speed control can be achieved for individual junctions, but the driver cannot select destinations smoothly when multiple junctions occur in succession
Solution Approach 1:
The patent merges multiple destination selection operations into a single unified selection process. When multiple junctions are detected within the predetermined distance, the system presents a combined destination selection interface that allows the driver to select a destination covering all junctions in one operation, rather than requiring separate selections for each junction. This improves ease of operation while maintaining reliability through the unified approach.
3Adaptability or versatility
If the apparatus uses a fixed distance threshold for determining concurrent junction presentation, then the system structure remains simple, but it cannot adapt to varying vehicle speeds and road conditions
Solution Approach 1:
The patent applies dynamics by making the determination threshold variable rather than fixed. The threshold is dynamically adjusted based on vehicle speed and other road conditions - when vehicle speed is high, the threshold is increased to include more junctions in the concurrent presentation, while at lower speeds, the threshold is reduced. This adaptability is achieved through a relatively simple mechanism that modifies the threshold parameter based on detected conditions, resolving the contradiction between adaptability and complexity.
Data Source
AI summary
A driving assistance apparatus includes: a determination unit configured to determine, when a first junction and a second junction located ahead of the first junction exist on a travel road in an advancement direction of a vehicle, whether or not the first junction and the second junction satisfy a concurrent destination presentation condition on the basis of a distance between the first junction and the second junction; a presentation unit configured to present, when the first junction and the second junction are determined to satisfy the concurrent destination presentation condition, destination information ahead of the first junction and destination information ahead of the second junction to a driver of the vehicle; and a driving assistance unit configured to provide driving assistance to the vehicle in accordance with a destination selected by the driver on the basis of the presented destination information.