Vehicle Exit Assist Control for False Interference Target Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle-exit assist systems erroneously detect non-interference targets as interference targets due to errors in target movement calculation, leading to unnecessary vehicle-exit assist control operations, which can annoy occupants and interfere with safe vehicle exit.
Innovation Solution
A vehicle-exit assist apparatus that includes a control unit to determine whether a specific condition is satisfied before executing assist control, considering the target's position and movement characteristics, such as its proximity to the vehicle width region and change in position, speed, and deceleration, to avoid executing assist control when the target is likely erroneously detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle-exit assist control is executed when a target is detected as an interference target, then the possibility of door or occupant contact with the interference target is reduced, but unnecessary control operations occur when detection errors happen
Solution Approach 1:
The system performs preliminary actions by checking multiple conditions before executing vehicle-exit assist control: verifying the target is in the rear-side vehicle width region, checking if the target extends across both virtual lines L1 and L2, and confirming the target is moving in the vehicle width direction. These preliminary checks prevent unnecessary control operations while maintaining safety
Solution Approach 2:
The system uses feedback from multiple detection parameters including target position relative to virtual lines L1 and L2, target movement direction in the vehicle width direction, and target extension across both lines. This multi-parameter feedback mechanism improves detection accuracy and reduces false positives
2Measurement precision
If the vehicle-exit assist control is executed based on calculated moving direction, then interference targets are identified, but errors in calculation cause false detection of non-interference targets
Solution Approach 1:
The system changes the approach from calculating moving direction to directly detecting movement in the vehicle width direction. It also changes spatial parameters by defining specific regions (rear-side vehicle width region) and using virtual lines L1 and L2 as reference boundaries, improving measurement precision without relying on error-prone calculations
3Device complexity
If the control system uses simple detection criteria, then the system complexity is reduced, but detection accuracy decreases leading to more false positives
Solution Approach 1:
The system segments the detection space using virtual lines L1 and L2 extending from left and right rear corner portions, dividing the rear-side vehicle width region into specific zones. This segmentation provides clear geometric criteria for determining interference targets without requiring complex algorithms
Solution Approach 2:
The system adds spatial dimensionality by using virtual lines L1 and L2 that extend in the vehicle width direction from rear corner portions. This dimensional approach creates a geometric framework for accurate target detection while maintaining simple control logic
Data Source
AI summary
Provided is a vehicle-exit assist apparatus including: a target information acquisition device (12) configured to acquire target information on a target existing on a rear side of an own vehicle; and a control unit (10) configured to execute vehicle-exit assist control. The control unit is configured to: determine, based on the target information, whether an interference target which is liable to interfere with the safe exit of the occupant from the own vehicle during a vehicle stop is detected; determine, when a vehicle-exit assist condition which is satisfied at least when the interference target is detected is satisfied, whether a specific condition is satisfied, the specific condition being satisfied when at least a part of the interference target exists in a rear-side vehicle width region; execute the vehicle-exit assist control when the specific condition is not satisfied; and avoid executing the vehicle-exit assist control when the specific condition is satisfied.