Vehicle Braking Control Inhibition for Small Objects
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Solution Overview
Problem
Existing driving support systems for vehicles fail to perform reasonable braking controls when encountering three-dimensional objects with small sizes, such as falling objects, as they do not account for objects with heights below a certain threshold, leading to unnatural or excessive braking.
Innovation Solution
A driving support apparatus that includes a driving environment recognition unit, a control subject extraction unit, a braking control unit capable of multiple braking levels, and an inhibition unit that sequentially inhibits braking controls based on the height of the control subject, with lower objects triggering more inhibitions, ensuring braking controls align with the driver's intentions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If braking control is applied to all detected three-dimensional objects regardless of height, then collision avoidance capability is improved, but excessive braking occurs for small objects causing unnatural vehicle behavior
Solution Approach 1:
The patent applies different braking control strategies based on the local property of object height. Small objects (below threshold) receive inhibited braking control while large objects (above threshold) receive full braking control, creating localized quality differentiation in the control response based on object characteristics
2Measurement precision
If multiple braking levels are implemented for different object types, then control precision is improved, but system complexity increases
Solution Approach 1:
The patent changes the parameter of braking force magnitude based on object height characteristics. By adjusting the braking control parameter (braking level) according to the detected object height, the system achieves precise control differentiation without requiring complex additional hardware or systems
3Ease of operation
If braking control is inhibited for small objects, then naturalness of vehicle response is improved, but collision avoidance for small objects may be compromised
Solution Approach 1:
The patent applies partial action by selectively inhibiting braking control only for small objects below a height threshold, while maintaining full braking control for larger objects. This partial application of inhibition achieves natural vehicle response for small objects without compromising collision avoidance for significant obstacles
Data Source
AI summary
There is provided a driving support apparatus for a vehicle. When a height of a three-dimensional object extracted as a control subject is less than a set height, and as the height of the control subject becomes lower, a driving control unit increases the range of the braking control that is sequentially inhibited in the stepwise manner from the highest braking level to the lowest braking level.