Steering Support Threshold Control for Multi-Object Avoidance
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Solution Overview
Problem
Existing driving supporters often cause discomfort to drivers by applying steering torque in a direction opposite to the driver's intention, especially when multiple objects are present, leading to reduced effectiveness in preventing lane departure.
Innovation Solution
A driving supporter system that adjusts the threshold value for steering assistance based on the presence of multiple objects, ensuring the steering torque aligns with the driver's intended action, thereby reducing discomfort and improving lane-keeping support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If steering torque is applied to prevent lane departure, then lane-keeping performance is improved, but driver discomfort increases when the torque opposes the driver's steering intention
Solution Approach 1:
The system dynamically changes the threshold parameter for steering torque application based on detected objects. When an object is detected in the lane, the threshold is raised to prevent torque application that would oppose the driver's avoidance maneuver, while maintaining lane-keeping support when no objects are present
Solution Approach 2:
The steering support system transitions from a static threshold-based approach to a dynamic adaptive approach where the threshold adjusts in real-time based on object detection, allowing the system to respond differently to varying driving conditions and object scenarios
2Device complexity
If a fixed threshold value is used for steering assistance, then system simplicity is maintained, but appropriate driving support cannot be provided in complex scenarios with multiple objects
Solution Approach 1:
The system employs parameter changes by adjusting the steering torque threshold based on object detection results. The threshold is dynamically modified according to the presence and position of objects, enabling adaptive driving support without requiring a completely complex system architecture
Solution Approach 2:
The system implements feedback by continuously monitoring object detection results and using this information to adjust the steering torque threshold. The detection unit provides feedback about objects in the lane, which the control unit uses to modify the threshold parameter accordingly
Data Source
AI summary
A driving supporter includes a support inhibitor that inhibits support of driving when a steering-operation value is greater than a threshold value. The support inhibitor includes a threshold-value determiner that determines the threshold value to a value greater when a first object and a second object are present than when the first object is present, and the second object is absent. The first object has a relationship in which a relative positional relationship between the object and an own vehicle is a relationship in which a steering operation is estimated to be performed in a first direction in which the own vehicle avoids the object. The second object has a relationship in which the relative positional relationship is a relationship in which the steering operation is estimated to be performed in a second direction reverse to the first direction such that the own vehicle avoids the object.