Obstacle Determination for Vehicle Parking Support
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Solution Overview
Problem
Existing vehicle remote control systems unnecessarily decelerate when detecting a person on the vehicle's trajectory, as they fail to differentiate between the driver or passenger and other individuals, leading to unnecessary obstacle avoidance maneuvers.
Innovation Solution
Implementing a dual determination criterion system that distinguishes between the driver or passenger and other individuals, using a second criterion that is less likely to classify the detected object as an obstacle, thereby preventing unnecessary deceleration of the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single determination criterion is used to detect all detected objects as obstacles, then obstacle detection coverage is improved, but false positive detection increases causing unnecessary deceleration
Solution Approach 1:
The patent segments the determination criterion into two distinct types: a first determination criterion for detected objects that are not the driver or passenger, and a second determination criterion for the driver or passenger. This segmentation allows the system to apply appropriate detection strictness based on the identity of the detected object, reducing false positives while maintaining safety for actual obstacles.
Solution Approach 2:
The patent applies different determination criteria (local quality) based on the specific characteristics of the detected object. The second determination criterion for the driver or passenger is less strict, making it less likely to determine them as obstacles, while the first criterion for other objects maintains higher detection sensitivity. This local differentiation resolves the contradiction between comprehensive detection and false positive reduction.
2Object-affected harmful factors
If the vehicle decelerates upon detection of any person on trajectory, then safety is improved, but unnecessary deceleration occurs when driver or passenger is detected
Solution Approach 1:
The patent makes the determination criterion dynamic by switching between the first and second determination criteria based on the identity of the detected object. When the detected object is identified as the driver or passenger, the system dynamically applies the second criterion that is less likely to trigger obstacle determination, thereby avoiding unnecessary deceleration while maintaining safety through the first criterion for other objects.
Data Source
AI summary
A method of determining obstacles determines if a detected object detected outside a subject vehicle is an obstacle for the subject vehicle on the basis of a predetermined determination criterion. In this method, a determination is made whether or not the detected object detected outside the subject vehicle is a driver or passenger of the subject vehicle. When the detected object is not the driver or passenger, a determination is made whether or not the detected object is an obstacle for the subject vehicle on the basis of a first determination criterion. When the detected object is the driver or passenger, a determination is made whether or not the detected object is an obstacle for the subject vehicle on the basis of a second determination criterion with which the detected object is less likely to be determined as an obstacle for the subject vehicle than with the first determination criterion.