Vehicle Driving Support Target Vehicle Selection Logic
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Solution Overview
Problem
Conventional vehicle driving support apparatuses experience reduced steering control accuracy when a preceding vehicle is incorrectly identified due to changes in the surrounding vehicle configuration, leading to unstable travel along the intended lane.
Innovation Solution
The apparatus includes target object information acquisition and traveling control means to select and determine the appropriate following-travel steering target vehicle based on extrapolated driving state information, ensuring accurate identification and tracking of the correct vehicle trajectory, even when other vehicles approach or move away from the original target.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the surroundings monitoring sensor recognizes vehicles based on proximity grouping, then the sensor can detect target objects in complex traffic scenarios, but the target object ID may be incorrectly assigned when vehicles approach and move away from each other
Solution Approach 1:
The system continuously monitors the positional relationship between the own vehicle and detected vehicles, using feedback from the surroundings monitoring sensor to dynamically adjust target object identification. When a vehicle moves away and the original target should be re-identified, the system uses the temporal and spatial feedback to correct the target object ID assignment, ensuring accurate tracking despite the initial misidentification caused by proximity grouping.
2Speed
If the system selects a target vehicle based on current position and trajectory, then the steering control can respond to immediate traffic conditions, but the control accuracy degrades when the target vehicle is incorrectly identified due to vehicle configuration changes
Solution Approach 1:
The system performs preliminary verification of target object identification by analyzing the temporal sequence of vehicle detection and movement patterns. Before finalizing the target vehicle selection for steering control, the system pre-checks whether the identified target corresponds to the expected vehicle trajectory and position changes, preventing incorrect target selection that would degrade control accuracy.
3Device complexity
If the radar sensor groups nearby vehicles as single targets, then the sensor reduces computational complexity in dense traffic, but the system loses the ability to distinguish between separate vehicles that may require different tracking
Solution Approach 1:
The system segments the target identification process into multiple stages: initial detection by the radar sensor groups nearby vehicles to reduce complexity, then a subsequent verification stage divides and conquers the identification problem by analyzing individual vehicle trajectories and positional changes over time. This segmentation allows the system to maintain low computational complexity while recovering lost identification information through temporal analysis.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces the likelihood of low-degree steering support control accuracy by accurately determining the correct following-travel steering target vehicle, maintaining stable vehicle travel along the intended lane.
Implementation Method 1
the radar sensor radiates/emits a radar wave around the radar sensor and receives a reflected wave generated by reflection of the radiated radar wave at a three-dimensional object
Data Source
AI summary
A driving support ECU performs a following-travel steering control. The driving support ECU selects an other vehicle which is present on a traveling course of the own vehicle as a target candidate vehicle. When a specific condition is satisfied, the driving support ECU determines a preceding vehicle traveling on a traveling trajectory which has been generated up to a present time point as a following-travel steering target vehicle. When the specific condition is not satisfied, the driving support ECU determines the target candidate vehicle which has been selected in the present calculation timing as the following-travel steering target vehicle.