Vehicle Obstacle Avoidance Control With Object-Specific Distance Thresholds
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Solution Overview
Problem
Conventional vehicle control systems execute obstacle contact avoidance control without distinguishing between action suppression stationary objects and normal action required stationary objects, leading to driver annoyance when the control is activated unnecessarily for action suppression stationary objects.
Innovation Solution
A vehicle control system that distinguishes between action suppression stationary objects and normal action required stationary objects, executing obstacle contact avoidance control at different distance thresholds based on the type of stationary object, thereby reducing driver annoyance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the obstacle contact avoidance control is executed for all stationary objects using a unified distance threshold, then the safety coverage is comprehensive, but the driver experiences annoyance due to unnecessary controls for action suppression stationary objects
Solution Approach 1:
The patent segments stationary objects into two distinct categories: action suppression stationary objects (where control should not be executed) and normal action required stationary objects (where control should be executed). This segmentation allows the system to apply different control strategies to different object types, thereby maintaining comprehensive safety coverage while eliminating unnecessary controls that cause driver annoyance.
Solution Approach 2:
The patent applies local quality by assigning different distance thresholds and control execution rules to different types of stationary objects based on their specific characteristics. Instead of using a uniform approach, the system tailors the obstacle contact avoidance control parameters to the local nature of each stationary object type, optimizing both safety and driver comfort for each case.
2Reliability
If the obstacle contact avoidance control is executed at an early distance threshold for normal action required stationary objects, then the safety protection is enhanced, but the control may be executed too late for action suppression stationary objects causing unnecessary driver annoyance
Solution Approach 1:
The patent segments the distance threshold parameter into two distinct values: a first distance threshold for normal action required stationary objects and a second distance threshold for action suppression stationary objects. This segmentation enables the system to activate control at the appropriate time for each object type, enhancing safety protection for objects requiring control while avoiding premature activation for objects where control should be suppressed.
3Measurement precision
If the system distinguishes between different types of stationary objects, then the control precision is improved, but the system complexity increases
Solution Approach 1:
The patent implements object classification by segmenting stationary objects into distinct categories based on their characteristics. This segmentation approach improves measurement precision by enabling accurate differentiation between action suppression and normal action required objects, while managing system complexity through a structured classification framework that builds upon existing obstacle detection capabilities.
Data Source
AI summary
A vehicle control apparatus has a controller performing an obstacle contact avoidance control including at least one of warning a driver of a vehicle or a behavior control to change the vehicle behavior, when the vehicle approaches a stationary object located stationarily in a specific place while the vehicle is moving in the place. The controller stores information on the stationary object while distinguishing the stationary object between a normal action required stationary object and an action suppression stationary object, executes the obstacle contact avoidance control, using the stored information, when a distance between the vehicle and the normal action required stationary object becomes equal to or shorter than a first distance threshold, and executes the obstacle contact avoidance control when a distance between the vehicle and the action suppression stationary object becomes equal to or shorter than a second distance threshold which is smaller than the first distance threshold.