Vehicle Driving Support Control Apparatus Visual Range Estimation
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Solution Overview
Problem
Existing vehicle driving support control systems face challenges in effectively notifying drivers of potential lane deviations and collisions, as drivers may become accustomed to warnings and controls, leading to delayed reactions or disabling of the support function.
Innovation Solution
A vehicle driving support control apparatus that includes a stereo camera unit for detecting lane line information, a millimeter wave radar unit for detecting three-dimensional objects, and a control unit that estimates the driver's visual range and the vehicle's driving track, triggering notifications or automatic braking only when the deviation is beyond the driver's visual range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If warning and automatic braking are executed frequently to prevent lane deviation and collision, then the safety of the vehicle is improved, but the driver becomes accustomed to the warnings and control, leading to delayed reaction or disabling of the function
Solution Approach 1:
The system estimates the driver's visual range in advance and uses this information to determine whether to issue warnings or execute automatic braking. By predicting the driver's ability to see and react to potential hazards before the actual event occurs, the system avoids unnecessary warnings for obstacles within the driver's visual range, thereby preventing driver desensitization while maintaining safety for obstacles beyond visual range
Solution Approach 2:
The system applies different control strategies based on the local condition of whether the obstacle is within or beyond the driver's visual range. For obstacles within visual range, no warning or automatic braking is executed, allowing the driver to maintain natural awareness. For obstacles beyond visual range, the system executes warning or automatic braking to ensure safety, creating a localized, context-dependent control approach
2Loss of information
If the driver is notified of all potential lane deviations and collisions, then the completeness of information provided to the driver is improved, but the driver becomes annoyed by excessive notifications and may turn off the driving support function
Solution Approach 1:
Instead of providing complete information about all potential lane deviations and collisions, the system selectively provides partial information only about hazards beyond the driver's visual range. This partial action approach filters out unnecessary notifications that would annoy the driver while still providing critical safety information, achieving an optimal balance between information completeness and driver acceptance
3Reliability
If the system executes automatic braking for all detected obstacles, then the collision prevention capability is improved, but the driver becomes accustomed to the control and may delay reaction when real danger occurs
Solution Approach 1:
The system performs preliminary assessment by estimating the driver's visual range before executing automatic braking. This preliminary action allows the system to predict whether the driver can see and respond to the obstacle, enabling selective execution of automatic braking only for obstacles beyond visual range, thereby preserving driver reaction capability for real dangers while maintaining collision prevention for unseen hazards
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Prevents collisions and lane deviations by providing targeted notifications and automatic braking only when necessary, thereby maintaining the effectiveness of the driving support control system and reducing driver annoyance and reaction delays.
Implementation Method 1
a first environment recognizer to detect lane line information on a driving lane in front, on the basis of image information
Implementation Method 2
a second environment recognizer to detect information on a three-dimensional object by a side of a road of the driving lane in front, on the basis of radio wave information transmitted and received
Data Source
AI summary
A vehicle driving support control apparatus receives lane line information given from a first environment recognizer and information on a target three-dimensional object given from a second environment recognizer. The apparatus estimates the visual range of a driver based on the lane line information, and estimates the driving lane based on at least either one of the lane line information and the target three-dimensional object information, and estimates the driving track of the vehicle. Based on the estimated driving lane and driving track, the apparatus estimates a deviation position where the subject vehicle will deviate from the driving lane on the basis of the driving lane and the driving track estimated. If the deviation position is beyond the visual range, the apparatus executes at least either one of notification to the driver and automatic braking in accordance with the possibility of deviation from the driving lane.